JPH03152092A - Lifting steel plate quantity control device for lifting electromagnet - Google Patents
Lifting steel plate quantity control device for lifting electromagnetInfo
- Publication number
- JPH03152092A JPH03152092A JP29309789A JP29309789A JPH03152092A JP H03152092 A JPH03152092 A JP H03152092A JP 29309789 A JP29309789 A JP 29309789A JP 29309789 A JP29309789 A JP 29309789A JP H03152092 A JPH03152092 A JP H03152092A
- Authority
- JP
- Japan
- Prior art keywords
- lifting
- magnetic flux
- plate thickness
- current value
- electromagnet
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 25
- 239000010959 steel Substances 0.000 title claims abstract description 25
- 230000004907 flux Effects 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims description 8
- 239000000725 suspension Substances 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 7
- 230000005284 excitation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007796 conventional method Methods 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
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Control Of Electrical Variables (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、吊上電磁石の銅板枚数制御装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for controlling the number of copper plates in a lifting electromagnet.
従来技術の１つが、特開昭６０−２３２３９１号公報に
開示されている。この技術は、吊り上げた鋼板の実際の
重量と吊り上げるべき鋼板の仮りの重量との誤差重量を
演算し、その誤差重量が許容範囲内でない時、その誤差
重量に応じた鋼板を吊り上げるのに必要な磁束量を演算
して記憶し、再度吊り上げ電磁石を鋼板上に乗せた後、
その磁束量を定磁束制御装置の磁束設定値に加算するよ
うに構成したことを特徴とするものである。One of the conventional techniques is disclosed in Japanese Patent Laid-Open No. 60-232391. This technology calculates the error weight between the actual weight of the steel plate being lifted and the tentative weight of the steel plate to be lifted, and when the error weight is not within the allowable range, the weight difference required to lift the steel plate according to the error weight is calculated. After calculating and memorizing the amount of magnetic flux and placing the lifting electromagnet on the steel plate again,
The present invention is characterized in that the amount of magnetic flux is added to the magnetic flux setting value of the constant magnetic flux control device.
（発明が解決しようとする課題〕
この従来技術では、鋼板を吊り上げるべき枚数より多く
吊り上げた場合に吊り上げ量の調整ができない。(Problems to be Solved by the Invention) In this conventional technique, when more steel plates are lifted than the number that should be lifted, the lifting amount cannot be adjusted.
本発明は吊り上げ枚数を所定量に調整することを目的と
する。An object of the present invention is to adjust the number of sheets to be lifted to a predetermined amount.
［課題を解決するための手段〕
本発明の吊上電磁石の吊り上げ鋼板量制御装置は、吊上
電磁石（２）の電流値を検出する電流検出手段（４）；
吊上電磁石（２）とそれに吸着した鋼板の間の磁束量を
検出する磁束検出手段（３）；既知の、吊上電磁石（２
）の電流値および磁束量とそれらで吊上電磁石（２）が
吸着する鋼板の総板厚との関係に、電流検出手段（４）
が検出した電流値と磁束検出手段（３）が検出した磁束
量とを導入して、これらの検出値によって吊上電磁石（
２）が吊り上げる総板厚を演算する吊り上げ板厚判定手
段（５）；および、積み重ねられた鋼板に載せた吊上電
磁石（２）に通電し電流値を変化させ、吊り上げ板厚判
定手段（５）が演算した総板厚が吊り残すべき板厚に実
質上合致したときに吊上電磁石（２）の電流値の変更を
停止する電流値制御手段（１，７，８） ；を備えたこ
とを特徴とする。なお、カッコ内の記号は、図面に示す
対応要素を示す。[Means for Solving the Problems] The lifting electromagnet lifting steel plate amount control device of the present invention includes a current detection means (4) for detecting the current value of the lifting electromagnet (2);
Magnetic flux detection means (3) for detecting the amount of magnetic flux between the suspension electromagnet (2) and the steel plate adsorbed thereto; known suspension electromagnet (2)
) and the total thickness of the steel plate to which the lifting electromagnet (2) is attracted.
The current value detected by
Lifting plate thickness determining means (5) that calculates the total plate thickness to be lifted by 2); and lifting plate thickness determining means (5) that energizes the lifting electromagnet (2) placed on the stacked steel plates to change the current value. ) is provided with current value control means (1, 7, 8) that stops changing the current value of the lifting electromagnet (2) when the calculated total plate thickness substantially matches the plate thickness to be left suspended. It is characterized by Note that symbols in parentheses indicate corresponding elements shown in the drawings.
吊り上げ板厚判定手段（５）が、既知の、吊上電磁石（
２）の電流値および磁束量とそれらで吊上電磁石（２）
が吸着する鋼板の総板厚との関係に、吊上電磁石（２）
の電流値と磁束量とを導入して、吊上電磁石（２）が吊
り上げる総板厚を演算するので、吊上電磁石（２）の吊
り上げる総板厚が、吊り上げ板厚判定手段（５）により
把握される。しかして、電流値制御手段（１，７，８）
が、積み重ねられた鋼板に載せた吊上電磁石（２）に通
電し電流値を変化させ、吊り上げ板厚判定手段（５）が
演算した総板厚が吊り残すべき板厚に実質上合致したと
きに吊上電磁石（２）の電流値の変更を停止するので、
吊上電磁石（２）の通電電流値が、吊り残すべき板厚に
対応するものに自動的に定まる。したがって該吊り残す
べき板厚分の鋼板量が吊上電磁石（２）で吊り上げられ
る。The lifting plate thickness determining means (5) is a known lifting electromagnet (
2) Current value and magnetic flux amount and the suspension electromagnet (2)
The lifting electromagnet (2)
By introducing the current value and the amount of magnetic flux, the total plate thickness lifted by the lifting electromagnet (2) is calculated, so that the total plate thickness lifted by the lifting electromagnet (2) is be understood. Therefore, the current value control means (1, 7, 8)
However, when the lifting electromagnet (2) placed on the stacked steel plates is energized and the current value is changed, the total plate thickness calculated by the lifting plate thickness determining means (5) substantially matches the plate thickness to be left hanging. Since we stop changing the current value of the lifting electromagnet (2),
The current value of the suspension electromagnet (2) is automatically determined to correspond to the thickness of the plate to be left hanging. Therefore, the amount of the steel plate corresponding to the thickness of the plate to be left suspended is lifted by the lifting electromagnet (2).
第１図に、本発明の構成を示す。第１図において、１は
電磁石を励磁するための電流を制御する装置、２は吊り
上げ電磁石、３は電磁石の総磁束量を検出する装置、４
は電磁石に流れる電流を検出する装置である。５はあら
かじめ設定した、鋼板の総板厚に対する磁束と電流の関
係から、検出した磁束量と検出した電流値によって総板
厚を判定する板厚判定装置、６は板の幅、長さ２重量。FIG. 1 shows the configuration of the present invention. In FIG. 1, 1 is a device for controlling the current for exciting the electromagnet, 2 is a lifting electromagnet, 3 is a device for detecting the total magnetic flux of the electromagnet, and 4 is a device for detecting the total magnetic flux of the electromagnet.
is a device that detects the current flowing through an electromagnet. 5 is a plate thickness determination device that determines the total plate thickness based on the detected magnetic flux amount and detected current value from the preset relationship between magnetic flux and current with respect to the total plate thickness of the steel plate; 6 is the plate width, length, and weight; .
積み方等の情報を発生する装置である。７は鋼板を過剰
に吊り上げたときに分離を行うため、吊り分ける板（総
板厚：ｔｎ、総重量：Ｗｎ）と切り離す板（総板厚：ｔ
ｎヤ１．総重量；Ｗｎや１）の、電磁石の総磁束に対す
る吸着力特性をそれぞれ読み出し、吊り分ける板につい
ては吸着力Ｆｎが総重量Ｗｎを上まわるようにして落下
を防ぎ、切り離す板については吸着力Ｆｎ＋１が総重量
Ｗｎ＋１よりも下まわるようにして１分離可能な磁束値
の範囲を演算し、その範囲内の磁束指令値を暫次発生す
る装置、８は磁束の指令値と検出値を比較し、磁束値が
指令値に追従するように電磁石の励磁電流設定値を発生
する装置である。This is a device that generates information such as how to stack. 7 separates the steel plate when it is lifted excessively, so there is a plate for hanging and separating (total plate thickness: tn, total weight: Wn) and a plate for separating (total plate thickness: t).
nya1. Total weight: Wn and 1), respectively, read the adsorption force characteristics with respect to the total magnetic flux of the electromagnet, and for the plates to be hung, the adsorption force Fn exceeds the total weight Wn to prevent them from falling, and for the plates to be separated, the adsorption force Fn + 1 8 is a device that calculates a range of magnetic flux values that can be separated by one so that Wn is lower than the total weight Wn+1, and temporarily generates a magnetic flux command value within that range; 8 compares the magnetic flux command value and the detected value; This is a device that generates the excitation current setting value for the electromagnet so that the magnetic flux value follows the command value.
次に、第１Ｉ！Ｉに示す本発明を使用する態様を第２図
を参照して説明すると、まず、何らかの方法を用いて、
電磁石で板を吸着する（イ）。吊り上げる（口）。そし
て装置５の板厚判定結果より。Next, the 1st I! The mode of using the present invention shown in I will be explained with reference to FIG. 2. First, using some method,
The plate is attracted by an electromagnet (a). Lift up (mouth). And from the plate thickness determination result of device 5.
吊り分け（過剰、成功、不足）を判定する（ハ）。Judging the hanging (excess, success, deficiency) (c).
そして、板厚判定結果より、吊り分けが正しく行なわれ
ている場合には、強励磁を行い、吸着した板が落下しに
くくする（二）、板厚判定結果より、吊り過剰の場合磁
束制御を行い、適正な値に磁束を設定することで吊り分
けを行う（ホ）、検出した磁束値と、検出した電流値か
ら吊り分は後の総板厚を判定する（へ）、吊り分は完了
がどうがを判定する。吊り過剰の場合には、磁束を新た
に設定し直す（ト）、強励磁を行い、吸着した板が落下
しにくくする（チ）。Based on the board thickness judgment results, if the hanging is done correctly, strong excitation is performed to make it difficult for the attracted boards to fall (2).If the board thickness judgment results indicate that the hanging is excessive, magnetic flux control is applied. The suspension is divided by setting the magnetic flux to an appropriate value (E). The total plate thickness for the suspension is determined from the detected magnetic flux value and the detected current value (F). The suspension is completed. Determine what is going on. If the suspension is excessive, the magnetic flux is reset (g), and strong excitation is performed to make it difficult for the attracted board to fall (ch).
第３図に、板を過剰に吊り上げた場合に、不必要な板を
分離するための磁束指令値の演算方法を示す、吊り分け
たい板の総板厚をｔｎ、総重量をＷ ｎ 、切り離した
い板の総板厚を”ｎ＋１を総重量をＷｎヤ１とする。そ
れぞれに働く吸着力をＦｎ。Figure 3 shows how to calculate the magnetic flux command value to separate unnecessary plates when too many plates are lifted. Let the total thickness of the plate be ``n+1'' and the total weight be Wn and 1.The adsorption force acting on each plate is Fn.
Ｆｎ＋１とすると、電磁石の総磁束Φに対して、Ｆｎｏ
Ｃφ１
Ｆｎ＋ｔ”ＣΦ２
であり、第３図のような放物線の特性曲線を描く。If Fn+1, then Fno
Cφ1 Fn+t”Cφ2, and a parabolic characteristic curve as shown in FIG. 3 is drawn.
いま、吊り分けたい板の吸着力Ｆｎが総重量Ｗｎと等し
くなる磁束値をΦＳ、切り離したい板の吸着力が重量Ｗ
ｎや１に等しくなる磁束値をΦＬとする。ΦくΦＳの範
囲では、吊り分けたい板に働く吸着力Ｆｎが重量を下ま
わるので、必要な板も落下してしまう。またΦ、くΦで
は、切り離したい板に働く吸着力Ｆｎや１が重量Ｗｎ＋
１を上まわるため不必要な板も吸着する。ΦＳ〈ΦくΦ
の範囲では、Ｆｎ＞Ｗｎ、Ｆｎ＋ｔ ＜Ｗｎ＋ｔとなり
、不必要な板の切り離しが可能である。Now, the magnetic flux value at which the adsorption force Fn of the board to be hung and separated is equal to the total weight Wn is ΦS, and the adsorption force of the board to be separated is the weight W
Let the magnetic flux value equal to n or 1 be ΦL. In the range of Φ to ΦS, the suction force Fn acting on the boards to be hung and separated is less than the weight, so the necessary boards also fall. Also, in Φ and kuΦ, the adsorption force Fn and 1 acting on the plate to be separated is the weight Wn+
Since it exceeds 1, it also attracts unnecessary boards. ΦS〈ΦくΦ
In the range of , Fn>Wn, Fn+t<Wn+t, and it is possible to cut out unnecessary plates.
磁束の設定方法としては、設定初期値としてΦＬを与え
、分離できない場合には、ΦｓくΦくΦＬの範囲をいく
つかに分離し、ΦＳに至るまで順次磁束指令値とする。As for the magnetic flux setting method, ΦL is given as the initial setting value, and if separation is not possible, the range of Φs, Φ, and ΦL is divided into several parts, and the magnetic flux command values are set sequentially until ΦS is reached.
これを装置７が行なう。This is done by device 7.
以上の通り本発明によれば、吊り上げ枚数を所定量に調
整することができる。As described above, according to the present invention, the number of sheets to be lifted can be adjusted to a predetermined amount.
第１図は本発明の一実施例の構成を示すブロック図、第
２図は第１図に示す本発明を用いた鋼板吊り分は処理の
内容を示すフローチャート、第３図は吊上電磁石の磁束
と吸着力の関係を示すグラフである。
１：電流発生装置 ２：吊上電磁石（吊上
電磁石）３：磁束検出器（磁束検出手段） ４：電流検
出器（電流検出手段）５：板厚判定装置（板厚判定手段
）６：板データ発生装置７：磁束指令値発生装置
８：磁束制御装置（１，７，８：電流値制御手段）
声２図
吊り４トｑ謂−ケ台
声３
図Fig. 1 is a block diagram showing the configuration of an embodiment of the present invention, Fig. 2 is a flowchart showing the details of the process for suspending a steel plate using the present invention shown in Fig. It is a graph showing the relationship between magnetic flux and attraction force. 1: Current generator 2: Lifting electromagnet (hanging electromagnet) 3: Magnetic flux detector (magnetic flux detection means) 4: Current detector (current detection means) 5: Plate thickness determination device (plate thickness determination means) 6: Plate Data generator 7: Magnetic flux command value generator
8: Magnetic flux control device (1, 7, 8: Current value control means) Voice 2 figure hanging 4 toq so-called voice 3 figure
Claims (1)
り上げ鋼板量を制御する装置において：吊上電磁石の電
流値を検出する電流検出手段；吊上電磁石とそれに吸着
した鋼板の間の磁束量を検出する磁束検出手段； 既知の、吊上電磁石の電流値および磁束量とそれらで吊
上電磁石が吸着する鋼板の総板厚との関係に、磁束検出
手段が検出した磁束量と電流検出手段が検出した電流値
を導入して、これらの検出値によって吊上電磁石が吊り
上げる総板厚を演算する吊り上げ板厚判定手段；および
、 積み重ねられた鋼板に載せた吊上電磁石に通電し電流値
を変化させ、吊り上げ板厚判定手段が演算した総板厚が
吊り残すべき板厚に実質上合致したときに吊上電磁石の
電流値の変更を停止する電流値制御手段； を備えたことを特徴とする吊上電磁石の吊り上げ鋼板量
制御装置。[Scope of Claims] In a device for controlling the amount of steel plate lifted by the current value of a lifting electromagnet that electromagnetically attracts a steel plate: current detection means for detecting the current value of the lifting electromagnet; Magnetic flux detection means detects the amount of magnetic flux between the magnetic flux detection means; Lifting plate thickness determining means which introduces the current value detected by the current detection means and calculates the total thickness of the plate lifted by the lifting electromagnet based on these detected values; and energizes the lifting electromagnet placed on the stacked steel plates. current value control means for changing the current value and stopping changing the current value of the lifting electromagnet when the total plate thickness calculated by the lifting plate thickness determining means substantially matches the plate thickness to be left suspended; A device for controlling the amount of steel plates lifted by a lifting electromagnet, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1293097A JP2537283B2 (en) | 1989-11-10 | 1989-11-10 | Lifting steel plate amount control device for lifting electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1293097A JP2537283B2 (en) | 1989-11-10 | 1989-11-10 | Lifting steel plate amount control device for lifting electromagnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03152092A true JPH03152092A (en) | 1991-06-28 |
| JP2537283B2 JP2537283B2 (en) | 1996-09-25 |
Family
ID=17790385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1293097A Expired - Lifetime JP2537283B2 (en) | 1989-11-10 | 1989-11-10 | Lifting steel plate amount control device for lifting electromagnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2537283B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008115008A (en) * | 2006-11-08 | 2008-05-22 | Hitachi Constr Mach Co Ltd | Fall prevention device of lifting magnet machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291202B (en) * | 2014-11-04 | 2016-09-28 | 大连美恒时代科技有限公司 | A kind of lifting electromagnet control method and system thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5257413U (en) * | 1975-10-24 | 1977-04-26 |
-
1989
- 1989-11-10 JP JP1293097A patent/JP2537283B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5257413U (en) * | 1975-10-24 | 1977-04-26 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008115008A (en) * | 2006-11-08 | 2008-05-22 | Hitachi Constr Mach Co Ltd | Fall prevention device of lifting magnet machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2537283B2 (en) | 1996-09-25 |
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