JP2007297649A - Device for removing excessive hot-dipping liquid - Google Patents

Device for removing excessive hot-dipping liquid Download PDF

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JP2007297649A
JP2007297649A JP2006124113A JP2006124113A JP2007297649A JP 2007297649 A JP2007297649 A JP 2007297649A JP 2006124113 A JP2006124113 A JP 2006124113A JP 2006124113 A JP2006124113 A JP 2006124113A JP 2007297649 A JP2007297649 A JP 2007297649A
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hot
article
basket
hot dipping
dripping
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Keisuke Murakami
圭祐 村上
Yoshio Nikaido
祥雄 二階堂
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Tsubakimoto Chain Co
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Tsubakimoto Chain Co
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a device capable of efficiently and reliably removing excessive hot dipping liquid in a short period of time without closely sticking hot-dipped articles to each other and considerably reducing hot dipping traces of the hot-dipped articles, thereby suppressing the dispersion of quality. <P>SOLUTION: In the device 100 for removing the excessive hot dipping liquid, many articles M to be hot-dipped are thrown and collected in a rotary basket 120 in a heating furnace 110 and the excessive hot dipping liquid stuck to the articles M is removed by the centrifugal separation. In the method 100, article capturing means 131 for capturing the article M are arranged on the inner circumferential side of the rotary basket 120 in an uneven manner along at least the inner circumferential direction in the rotary basket 120. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、溶融メッキ加工に使用される溶融メッキ垂れ切り装置に関するものであり、更に詳しくは、チェーン部品の溶融亜鉛メッキ加工に使用される溶融メッキ垂れ切り装置に関するものである。   The present invention relates to a hot drip dripping device used for hot dipping processing, and more particularly to a hot drip dripping device used for hot dipping galvanization of chain parts.

一般に、溶融メッキ加工を行う際には、被溶融メッキ物品を溶融メッキ液に浸漬させた後に、余分な溶融メッキ液の除去作業、所謂、溶融メッキの垂れ切りが行われている。   Generally, when performing the hot dipping process, after removing an object to be hot-plated in a hot dipping solution, an operation for removing the extra hot dipping solution, so-called dripping of the hot dipping is performed.

従来、余分な溶融メッキ液を遠心分離して除去する装置として、溶融亜鉛メッキを施した物品をカゴに入れたまま、冷却槽の上方に移動させてカゴを回転させてスペルタと称する余分な溶融亜鉛を飛散除去する溶融メッキ垂れ切り装置が知られている(例えば、特許文献1を参照)。
特公昭51−6616号公報(第2頁、図2)
Conventionally, as an apparatus for removing excess molten plating solution by centrifuging and removing the hot dip galvanized article, it is moved to the upper side of the cooling tank while the hot dip galvanized article is put in the basket, and the basket is rotated and the excess melting called speller is performed. A hot dipping sagging apparatus that scatters and removes zinc is known (see, for example, Patent Document 1).
Japanese Patent Publication No.51-6616 (2nd page, FIG. 2)

ところが、前述したような従来の溶融メッキ垂れ切り装置では、溶融亜鉛メッキを施した物品を投入するカゴの内周壁面が接触抵抗の少ない円筒状の曲面を呈していることにより、遠心分離時にカゴの内周壁面と溶融亜鉛メッキを施した物品との間でスリップが生じてカゴの内周壁面から溶融亜鉛メッキを施した物品に回転力が効率よく伝達されず、その結果、カゴ内の溶融亜鉛メッキを施した物品に対して十分な遠心力を発揮することができないため、余分な溶融亜鉛を効率よく遠心分離できず、溶融亜鉛メッキの垂れ切りに要する時間が長くなって溶融亜鉛メッキを施した物品同士の品質バラツキを生じたり、遠心分離時の冷却速度が遅延して母材鉄と亜鉛との合金層が必要以上に異常成長するとメッキ層の耐食性が損なわれるという問題があり、また、このような溶融亜鉛メッキの垂れ切りに起因する品質バラツキを配慮すると、溶融亜鉛の通常のメッキ温度440〜470℃を高めの500〜510℃に設定して維持しなければならないという溶融温度制御上の厄介な問題があった。   However, in the conventional hot dip plating dripping apparatus as described above, the inner peripheral wall surface of the basket into which the hot dip galvanized article is placed has a cylindrical curved surface with low contact resistance. Slip occurs between the inner peripheral wall surface of the steel and the hot dip galvanized article, and the rotational force is not efficiently transmitted from the inner peripheral wall surface of the car to the hot dip galvanized article, resulting in melting in the car Since sufficient centrifugal force cannot be exerted on the galvanized article, excess molten zinc cannot be efficiently centrifuged, and the time required for dripping of the hot dip galvanizing becomes longer. The problem is that the corrosion resistance of the plating layer is impaired if the quality of the applied articles varies, or if the cooling rate during centrifugation is delayed and the alloy layer of the base iron and zinc grows abnormally more than necessary. In consideration of the quality variation caused by the dripping of the hot dip galvanizing, the normal galvanizing temperature of hot dip galvanizing should be set to 500 to 510 ° C., which is a higher temperature. There was a troublesome problem in controlling the melting temperature.

また、従来の溶融メッキ垂れ切り装置では、カゴ内に投入された溶融亜鉛メッキを施した物品から余分な溶融亜鉛を遠心分離して除去する際に、溶融亜鉛メッキを施した物品が遠心力によりカゴの内周壁面上で瞬時に重畳して相互に密着した状態で冷却されるため、溶融亜鉛メッキを施した物品の重畳密着した部分と重畳密着しなかった部分とでメッキ斑と称するメッキ厚のバラツキを生じたり、あるいは、重畳密着した相互の物品を個々に分割する際に重畳密着した部分に剥離跡が生じたりして物品の品質を著しく低下させるという問題があった。   In addition, in the conventional hot dipping apparatus, when hot molten zinc is removed from the hot-dip galvanized article placed in the cage by centrifugation, the hot-dip galvanized article is removed by centrifugal force. Plating thickness referred to as plating spots on the parts that have been hot-dip galvanized and that have not been superposed and tightly bonded, because they are instantaneously superimposed on the inner wall of the cage and cooled in close contact with each other There has been a problem that the quality of the article is remarkably deteriorated due to the variation of the above, or the separation marks are produced at the overlapping and intimate contact portions when the mutually overlapped and intimate articles are divided individually.

そこで、本発明の目的は、前述したような従来技術の問題点を解決し、被溶融メッキ物品が相互に密着させることなく余分な溶融メッキ液を短時間で効率良く確実に垂れ切りできるとともに、被溶融メッキ物品のメッキ斑を大幅に低減して品質バラツキを抑制できる溶融メッキ垂れ切り装置を提供することである。   Therefore, the object of the present invention is to solve the problems of the prior art as described above, and can efficiently and reliably dripping excess molten plating solution in a short time without causing the objects to be plated to adhere to each other. An object of the present invention is to provide a hot dipping dripping device capable of significantly reducing plating unevenness of a hot-dipped article and suppressing variation in quality.

請求項1に係る本発明は、多数の被溶融メッキ物品を加熱炉内の回転カゴ内に投入収集して前記被溶融メッキ物品に付着している余分な溶融メッキ液を遠心分離して除去する溶融メッキ垂れ切り装置において、前記回転カゴ内で被溶融メッキ物品を捕捉する物品捕捉手段が、前記回転カゴの内周側に少なくとも内周方向に沿った凹凸状態で配置されていることにより、前述した課題を解決するものである。   According to the first aspect of the present invention, a large number of hot-dip plating articles are charged and collected in a rotating basket in a heating furnace, and excess hot-plating liquid adhering to the hot-melt plating articles is removed by centrifugation. In the hot dipping apparatus, the article catching means for catching the hot-plated article in the rotating basket is arranged in an uneven state along the inner circumferential direction at least on the inner circumferential side of the rotating basket. It solves the problem.

請求項2に係る本発明は、請求項1記載の構成に加えて、前記物品捕捉手段が、前記回転カゴの内周側に螺旋状に配置されていることにより、前述した課題を解決するものである。   According to a second aspect of the present invention, in addition to the configuration of the first aspect, the article capturing means is arranged in a spiral shape on the inner peripheral side of the rotating basket, thereby solving the above-described problem. It is.

請求項3に係る本発明は、請求項1または請求項2記載の構成に加えて、前記被溶融メッキ物品を回転カゴの内周面に向けて撹拌分散させる撹拌分散手段が、前記回転カゴの内底側に配置されていることにより、前述した課題を解決するものである。   According to a third aspect of the present invention, in addition to the configuration according to the first or second aspect, the stirring / dispersing means for stirring and dispersing the hot-dip plated article toward the inner peripheral surface of the rotating basket includes: The problem described above is solved by being arranged on the inner bottom side.

請求項4に係る本発明は、請求項3記載の構成に加えて、前記物品捕捉手段と撹拌分散手段とを一体に形成した内カゴが、前記回転カゴに対して同軸状態かつ着脱自在に内装されていることにより、前述した課題を解決するものである。   According to a fourth aspect of the present invention, in addition to the configuration of the third aspect, an inner basket in which the article capturing means and the stirring and dispersing means are integrally formed is coaxially and detachably attached to the rotating basket. Thus, the above-described problems are solved.

請求項5に係る本発明は、請求項4記載の構成に加えて、前記回転カゴの回転を強制停止させるブレーキ手段が、前記回転カゴの回転軸に付設されていることにより、前述した課題を解決するものである。   According to a fifth aspect of the present invention, in addition to the configuration according to the fourth aspect, the brake means for forcibly stopping the rotation of the rotary basket is attached to the rotary shaft of the rotary basket. It is a solution.

請求項6に係る本発明は、請求項1乃至請求項5のいずれか1項に記載の構成に加えて、前記溶融メッキ液が溶融亜鉛からなることにより、前述した課題を解決するものである。   According to a sixth aspect of the present invention, in addition to the configuration according to any one of the first to fifth aspects, the above-described problem is solved by the fact that the molten plating solution is made of molten zinc. .

請求項7に係る本発明は、請求項1乃至請求項6のいずれか1項に記載の構成に加えて、前記被溶融メッキ物品がチェーン部品であることにより、前述した課題を解決するものである。   According to a seventh aspect of the present invention, in addition to the configuration according to any one of the first to sixth aspects, the hot-dip plated article is a chain component, thereby solving the above-described problem. is there.

まず、本請求項1に係る発明によれば、多数の被溶融メッキ物品を加熱炉内の回転カゴ内に投入収集して被溶融メッキ物品に付着している余分な溶融メッキ液を遠心分離して除去する溶融メッキ垂れ切り装置において、回転カゴ内で被溶融メッキ物品を捕捉する物品捕捉手段が回転カゴの内周側に少なくとも内周方向に沿った凹凸状態で配置されていることにより、遠心分離時に回転カゴ内で掻き回される被溶融メッキ物品が凹凸状態の物品捕捉手段との間でスリップすることなく確実に捕捉されるとともに、被溶融メッキ物品に回転力が効率よく伝達されて十分な遠心力を発揮させるため、余分な溶融亜鉛を効率よく遠心分離して短時間かつ確実に垂れ切りでき、被溶融メッキ物品の品質バラツキを解消でき、さらに、被溶融メッキ物品の垂れ切りに要する時間を短縮できるので、従来のような垂れ切り時の大幅な温度低下を見越した高めのメッキ温度を設定する必要がなく、このような高めのメッキ温度より低いメッキ温度に設定すれば良く、メッキ温度の温度制御が簡便となる。   First, according to the first aspect of the present invention, a large number of hot-dip plated articles are charged and collected in a rotating basket in a heating furnace, and excess hot-plating liquid adhering to the hot-plated articles is centrifuged. In the hot dipping apparatus that removes in this manner, the article catching means for catching the hot-plated article in the rotating basket is arranged in an uneven state along the inner circumferential direction at least on the inner circumferential side of the rotating basket. The to-be-melted plated article stirred in the rotating basket at the time of separation is reliably captured without slipping between the uneven-shaped article capturing means and the rotational force is efficiently transmitted to the to-be-plated article. In order to exert a sufficient centrifugal force, it is possible to efficiently centrifuge excess molten zinc efficiently and hang it down in a short time, eliminate the quality variation of the plated material to be melted, Since the time required for cutting off can be shortened, it is not necessary to set a higher plating temperature in anticipation of a drastic temperature drop during conventional dripping, and a plating temperature lower than the higher plating temperature should be set. The temperature control of the plating temperature is simple.

請求項2に係る本発明の溶融メッキ垂れ切り装置によれば、請求項1記載の発明が奏する効果に加えて、前記物品捕捉手段が、前記回転カゴの内周側に螺旋状に配置されていることにより、遠心分離時に回転カゴ内で掻き回される被溶融メッキ物品が回転カゴの下方から上方に向かって移動するため、被溶融メッキ物品を効率よく分散させることができる。   According to the hot dipping apparatus according to the second aspect of the present invention, in addition to the effect exhibited by the first aspect of the invention, the article capturing means is arranged in a spiral shape on the inner peripheral side of the rotating basket. As a result, the object to be plated to be stirred in the rotating basket at the time of centrifugation moves from the lower side to the upper side of the rotating basket, so that the object to be plated can be efficiently dispersed.

請求項3に係る本発明の溶融メッキ垂れ切り装置によれば、請求項1または請求項2記載の発明が奏する効果に加えて、被溶融メッキ物品を回転カゴの内周面に向けて撹拌分散させる撹拌分散手段が回転カゴの内底側に配置されていることにより、例えば、小物と称する物品質量の小さい被溶融メッキ物品などが回転カゴの回転軸付近に投入されたような場合であっても、撹拌分散手段が回転カゴの内底に投入された被溶融メッキ物品を回転カゴの内周面に向けて強制的に飛散させるとともに、相互に密着した状態の被溶融メッキ物品であっても撹拌分散手段が強制的に個々に分離するため、従来のように被溶融メッキ物品の重畳密着した部分と重畳密着しなかった部分とでメッキ斑と称するメッキ厚のバラツキを生じたり、あるいは、重畳密着した相互の物品を個々に分割する際に重畳密着した部分に剥離跡が生じたりして物品の品質を著しく低下させることがなく、被溶融メッキ物品のメッキ斑を大幅に低減して品質バラツキを抑制することができる。   According to the hot dipping sagging apparatus of the present invention according to claim 3, in addition to the effect exerted by the invention of claim 1 or claim 2, the object to be melted is stirred and dispersed toward the inner peripheral surface of the rotating basket. Since the stirring and dispersing means to be arranged is arranged on the inner bottom side of the rotating basket, for example, when a hot-plated article having a small article mass called an accessory is thrown in the vicinity of the rotating shaft of the rotating basket. In addition, the agitating and dispersing means forcibly scatters the object to be plated put on the inner bottom of the rotating basket toward the inner peripheral surface of the rotating basket, Since the agitation and dispersion means forcibly separates each other, the plating thickness variation called the plating unevenness occurs between the overlapped and non-superimposed portions of the molten plated article as in the past, or the overlapping When the worn articles are individually divided, there is no trace of peeling at the overlapped and closely bonded parts, and the quality of the articles is not significantly reduced. Can be suppressed.

請求項4に係る本発明の溶融メッキ垂れ切り装置によれば、請求項3記載の発明が奏する効果に加えて、物品捕捉手段と撹拌分散手段とを一体に形成した内カゴが回転カゴに対して同軸状態かつ着脱自在に内装されていることにより、回転カゴに対する被溶融メッキ物品の投入、排出を内カゴを介して取り扱うことができるため、被溶融メッキ物品の前処理工程と後処理工程との間で簡便な取り扱いが実現でき、しかも、回転カゴ内部のメンテンナンスも簡便となる。   According to the hot dipping apparatus according to the fourth aspect of the present invention, in addition to the effect produced by the third aspect of the invention, the inner basket in which the article capturing means and the stirring and dispersing means are integrally formed has a rotating cage. Since it is coaxial and detachably mounted, it is possible to handle the insertion and discharge of the object to be plated with respect to the rotating basket through the inner basket. Can be easily handled, and the maintenance inside the rotary basket is also simplified.

請求項5に係る本発明の溶融メッキ垂れ切り装置によれば、請求項4記載の発明が奏する効果に加えて、前記回転カゴの回転を強制停止させるブレーキ手段が、前記回転カゴの回転軸に付設されていることにより、このブレーキ手段が遠心分離終了時に回転カゴを惰性で回転させることなく強制的に急停止させて垂れ切り処理を短時間で終了させることができるので、内カゴに対する被溶融メッキ物品の貼り付きを回避することができる。   According to the hot dipping apparatus according to the fifth aspect of the present invention, in addition to the effect produced by the fourth aspect of the invention, the brake means for forcibly stopping the rotation of the rotating basket is provided on the rotating shaft of the rotating basket. As a result, the brake means can forcibly stop suddenly without having to rotate the rotating cage at the end of the centrifugal separation, and the drooping process can be completed in a short time. Sticking of the plated article can be avoided.

請求項6に係る本発明の溶融メッキ垂れ切り装置によれば、請求項1乃至請求項5のいずれか1項に記載の発明が奏する効果に加えて、溶融メッキ液が溶融亜鉛からなることにより、余分な溶融亜鉛メッキ液を短時間で効率良く確実に垂れ切りできるとともに、被溶融メッキ物品のメッキ斑を大幅に低減して品質バラツキを抑制でき、しかも、従来のような垂れ切り時の大幅な温度低下を見越した高めのメッキ温度500〜510℃に設定する必要がなく、このような高めのメッキ温度より低いメッキ温度約440℃程度に設定すれば良く、溶融亜鉛メッキ温度の温度制御が簡便となる。   According to the hot dipping sagging apparatus of the present invention according to claim 6, in addition to the effect exhibited by the invention according to any one of claims 1 to 5, the hot dipping solution is made of hot zinc. In addition to dripping excess hot dip galvanizing solution efficiently and reliably in a short time, the plating unevenness of the material to be plated can be greatly reduced and quality variation can be suppressed. It is not necessary to set a higher plating temperature of 500 to 510 ° C. in anticipation of a significant temperature drop, and it is sufficient to set a plating temperature of about 440 ° C. lower than such a higher plating temperature. It becomes simple.

請求項7に係る本発明の溶融メッキ垂れ切り装置によれば、請求項1乃至請求項6のいずれか1項に記載の発明が奏する効果に加えて、被溶融メッキ物品がチェーン部品であることにより、リンクプレートなどのチェーン部品のメッキ斑が大幅に低減されて品質バラツキを抑制できるため、長期に亙って優れた耐食性を発揮するとともにチェーンの組み立て精度が著しく向上して優れたチェーン耐久性を発揮することができる。   According to the hot-dip dripping apparatus of the present invention according to claim 7, in addition to the effect exhibited by the invention according to any one of claims 1 to 6, the hot-plated article is a chain component. As a result, plating spots on link parts such as link plates can be greatly reduced and quality variation can be suppressed, so that it exhibits excellent corrosion resistance over a long period of time, and the chain assembly accuracy is significantly improved, resulting in excellent chain durability. Can be demonstrated.

本発明は、多数の被溶融メッキ物品を加熱炉内の回転カゴ内に投入収集して被溶融メッキ物品に付着している余分な溶融メッキ液を遠心分離して除去する溶融メッキ垂れ切り装置において、回転カゴ内で被溶融メッキ物品を捕捉する物品捕捉手段が回転カゴの内周側に少なくとも内周方向に沿った凹凸状態で配置されていることにより、被溶融メッキ物品が相互に密着させることなく余分な溶融メッキ液を短時間かつ低温で効率良く確実に垂れ切りするとともに、被溶融メッキ物品のメッキ斑を大幅に低減して品質バラツキを抑制するものであれば、その具体的な実施の態様は如何なるものであって何ら構わない。   The present invention relates to a hot dipping sagging apparatus for collecting and collecting a large number of hot-plated articles in a rotary basket in a heating furnace and centrifuging and removing excess hot-plating liquid adhering to the hot-plated articles. The article catching means for catching the object to be plated in the rotating basket is arranged in an uneven state along the inner circumferential direction at least on the inner peripheral side of the rotating basket, so that the objects to be plated are in close contact with each other. If it is possible to drastically and efficiently drip excess molten plating solution in a short time and at a low temperature, and to significantly reduce plating unevenness of the object to be plated, thereby suppressing variation in quality, the specific implementation There is no limitation on the form.

すなわち、本発明の溶融メッキ垂れ切り装置で用いる回転カゴの具体的形状については、平坦な底部を有する円筒状のもの、皿状の底部を有する円筒状のもの、摺鉢状の底部を有する円筒状のものなどのいずれであっても差し支えないが、摺鉢状の底部を有する円筒状のものの場合には、その底部が回転カゴの中心から回転カゴの内周壁上方に向かって傾斜しているため、被溶融メッキ物品が内底面からより上方に飛散し、その結果、被溶融メッキ物品が内周壁上でより分散した状態で垂れ切りされるのでより好ましい。   That is, as for the specific shape of the rotating basket used in the hot dipping apparatus of the present invention, a cylindrical shape having a flat bottom, a cylindrical shape having a dish-shaped bottom, and a cylinder having a mortar-shaped bottom However, in the case of a cylindrical shape having a mortar-shaped bottom, the bottom is inclined from the center of the rotating basket toward the upper part of the inner peripheral wall of the rotating basket. Therefore, it is more preferable that the object to be plated is scattered upward from the inner bottom surface, and as a result, the object to be plated is dripped in a more dispersed state on the inner peripheral wall.

また、本発明の溶融メッキ垂れ切り装置で用いる物品捕捉手段については、回転カゴの内周側に少なくとも内周方向に沿った凹凸状態で配置されていれば、その具体的な形態は如何なるものであっても何ら構わなく、例えば、回転カゴ自体の内周側に設けても良く、回転カゴに同芯状態で着脱可能に収容する内カゴの内周側に設けても良い。
さらに、内カゴの内周方向に沿って回転軸と平行な縦筋の波状に、若しくは、回転軸を中心として内カゴの下方から上方に向かって螺旋角が約45〜80゜の螺旋状に凹凸形成されたものであれば、該凹凸の凹部、凸部が角張った状態で形成されたもの、曲線状態で形成されたものなどのいずれであっても差し支えない。
Further, the article capturing means used in the hot dipping apparatus of the present invention may be any specific form as long as it is arranged in an uneven state along at least the inner peripheral direction on the inner peripheral side of the rotating basket. For example, it may be provided on the inner peripheral side of the rotary cage itself, or may be provided on the inner peripheral side of the inner cage that is detachably accommodated in the concentric state with the rotary cage.
Further, it is in the shape of a vertical stripe parallel to the rotation axis along the inner circumferential direction of the inner cage, or in a spiral shape with a spiral angle of about 45 to 80 ° from the lower side to the upper side around the rotation axis. As long as the projections and depressions are formed, the concave and convex portions of the projections and depressions, the projections formed in an angular state, the ones formed in a curved state, and the like may be used.

また、本発明の溶融メッキ垂れ切り装置で用いる撹拌分散手段の具体的形状については、内底側に設けられたものであれば、三角柱状の部材を内カゴの内底面に十字状に設置することで形成されたもの、半円柱状の部材を内カゴの内底面に十字状に設置することで形成されたものなどのいずれであっても差し支えない。   In addition, regarding the specific shape of the stirring and dispersing means used in the hot dipping dripping device of the present invention, a triangular prism-like member is installed in a cross shape on the inner bottom surface of the inner basket as long as it is provided on the inner bottom side. Any of those formed by placing a semi-cylindrical member in a cross shape on the inner bottom surface of the inner basket may be used.

以下、本発明の一実施例である溶融メッキ垂れ切り装置を図面に基づいて説明する。
ここで、図1は、本発明の第1実施例である溶融メッキ垂れ切り装置の全体概要図であり、図2は、図1に示す溶融メッキ垂れ切り装置を模式的に示した全体断面図であり、図3は、図1に示す溶融メッキ垂れ切り装置に用いた内カゴの全体図であり、図4は、図1に示す溶融メッキ垂れ切り装置に用いた内カゴの平面図であり、図5は、本発明の第2実施例である溶融メッキ垂れ切り装置に用いた内カゴの全体図である。
DESCRIPTION OF THE PREFERRED EMBODIMENTS A hot-dip dripping apparatus that is an embodiment of the present invention will be described below with reference to the drawings.
Here, FIG. 1 is an overall schematic view of a hot dipping dripping apparatus according to a first embodiment of the present invention, and FIG. 2 is an overall cross-sectional view schematically showing the hot dipping dripping apparatus shown in FIG. FIG. 3 is an overall view of the inner basket used in the hot dipping apparatus shown in FIG. 1, and FIG. 4 is a plan view of the inner car used in the hot dipping apparatus shown in FIG. FIG. 5 is an overall view of an inner basket used in a hot dipping apparatus according to a second embodiment of the present invention.

まず、本発明の第1実施例である溶融メッキ垂れ切り装置100は、被溶融メッキ物品Mとして、チェーン部品のひとつであるリンクプレートに適用した場合のものであって、被溶融メッキ物品M、すなわち、溶融亜鉛メッキしてなるリンクプレートに付着している余分な溶融亜鉛メッキ液を遠心分離して除去するものである。
すなわち、図1乃至図2に示すように、本実施例である溶融メッキ垂れ切り装置100は、加熱炉110内に設けられた円筒状の回転カゴ120とこの回転カゴ120に対して同芯状態で着脱可能な円筒状の内カゴ130とを備えて、この内カゴ130内に投入収集された被溶融メッキ物品Mのリンクプレートに付着している余分な溶融亜鉛メッキ液を遠心分離して除去するように構成されている。
First, the hot-dip dripping apparatus 100 according to the first embodiment of the present invention is applied to a link plate that is one of chain parts as the hot-plated article M, and the hot-dip plated article M, That is, the excess hot dip galvanizing solution adhering to the link plate formed by hot dip galvanization is removed by centrifugation.
That is, as shown in FIGS. 1 and 2, the hot-dip dripping apparatus 100 according to the present embodiment is in a concentric state with respect to the cylindrical rotating basket 120 provided in the heating furnace 110 and the rotating basket 120. And a cylindrical inner basket 130 that can be attached and detached, and the excess hot dip galvanizing solution adhering to the link plate of the object to be melted plated M collected in the inner basket 130 is removed by centrifugation. Is configured to do.

なお、図1乃至図2における符号111は、被溶融メッキ物品Mを投入収集した内カゴ130を収容したり取り出したりするための加熱炉110に設けた開閉蓋であり、図2における符号140は、前述した加熱炉110の底部側に軸支されるとともに回転カゴ120の下底面に取り付けられた回転軸であり、符号150は、駆動ベルトを介して回転軸140を駆動させる駆動モーターである。   Reference numeral 111 in FIGS. 1 and 2 is an open / close lid provided in the heating furnace 110 for receiving and collecting the inner basket 130 into which the hot-dip plated article M has been input and collected, and reference numeral 140 in FIG. The rotating shaft is pivotally supported on the bottom side of the heating furnace 110 and attached to the lower bottom surface of the rotating basket 120. Reference numeral 150 denotes a driving motor that drives the rotating shaft 140 via a driving belt.

そして、前述した円筒状の回転カゴ120は、図2に示すように、炉内温度200℃以上に保持するための断熱材121がその外周部分に囲繞周設され、その底部分に遠心分離された溶融亜鉛メッキ液を排出するための排出口(図示せず)が設けられている。
なお、図1乃至図2における符号122は、回転カゴ120内に収容した内カゴ130を遠心分離時に確実に固定して回転カゴ120と一体に回転させるための回転カゴ120の頂部に突出して設けた嵌合用突起である。
As shown in FIG. 2, the cylindrical rotating basket 120 described above is provided with a heat insulating material 121 for maintaining the furnace temperature at 200 ° C. or more around the outer periphery, and is centrifuged at the bottom. A discharge port (not shown) for discharging the hot dip galvanizing solution is provided.
The reference numeral 122 in FIGS. 1 and 2 is provided so as to protrude from the top of the rotary cage 120 for securely fixing the inner cage 130 accommodated in the rotary cage 120 and rotating it together with the rotary cage 120 during centrifugation. This is a fitting protrusion.

また、前述した円筒状の内カゴ130は、図2乃至図3に示すように、遠心分離された溶融亜鉛メッキ液を排出するために、カゴ全体が空隙率40〜60%のエキスパンドメタル、パンチングメタルなどの穴加工された鋼板からなり、その内底側に被溶融メッキ物品Mのリンクプレートを内カゴ130の内周面に向けて飛散させるための撹拌分散手段である撹拌分散翼131が設けられているとともに、その内周側に回転カゴ120内で被溶融メッキ物品Mのリンクプレートを捕捉するための物品捕捉手段である物品捕捉壁132が設けられている。   Further, as shown in FIGS. 2 to 3, the cylindrical inner basket 130 described above is an expanded metal, punching, in which the entire cage has a porosity of 40 to 60% in order to discharge the centrifuged hot dip galvanizing solution. An agitating / dispersing blade 131, which is an agitating / dispersing means for diffusing the link plate of the hot-plated article M toward the inner peripheral surface of the inner basket 130, is made of a steel plate with holes formed therein such as metal. In addition, an article catching wall 132 that is an article catching means for catching the link plate of the hot-dip plated article M in the rotary basket 120 is provided on the inner peripheral side thereof.

なお、図3における符号133は、内カゴ130を回転カゴ120に同芯状態で着脱可能に係止して収納するための係止用フランジ部であり、符号134は、内カゴ130を回転カゴ120の嵌合用突起122に嵌合させて確実に固定させるために係止用フランジ部133に設けた4つの嵌合孔であり、符号135は、遠心分離時に内カゴ130から被溶融メッキ物品Mの飛び出しを防止するための内蓋であり、符号136は、回転カゴ120から内カゴ130を収容したり取り出したりするために係止用フランジ部133に設けた取っ手である。   Reference numeral 133 in FIG. 3 denotes a locking flange portion for detachably locking the inner basket 130 to the rotary basket 120 in a concentric state, and reference numeral 134 denotes the rotary basket. Reference numeral 135 denotes four fitting holes provided in the locking flange portion 133 so as to be securely fixed by being fitted to the fitting protrusions 122 of 120, and reference numeral 135 denotes an object to be melt-plated M from the inner basket 130 during centrifugation. The reference numeral 136 is a handle provided on the locking flange portion 133 in order to accommodate and take out the inner cage 130 from the rotary cage 120.

したがって、このような内カゴ130を回転カゴ120に取り付けるには、まず、内カゴ130の係止用フランジ部133に設けた4つの嵌合孔134を回転カゴ120の頂部に設けられた4個の嵌合用突起122に挿入させることにより、内カゴ130を回転カゴ120に一体に収容した後、内カゴ130の内蓋135を閉じ、更に、前述した4個の嵌合用突起122に係止部材137を係止して、遠心分離時に確実に固定して回転カゴ120と一体に回転させるようになっている。   Therefore, in order to attach such an inner cage 130 to the rotary cage 120, first, four fitting holes 134 provided in the locking flange portion 133 of the inner cage 130 are provided at the top of the rotary cage 120. After the inner cage 130 is integrally accommodated in the rotary cage 120 by being inserted into the fitting projections 122, the inner lid 135 of the inner cage 130 is closed, and the four fitting projections 122 are engaged with the locking members. 137 is latched and securely fixed at the time of centrifugal separation and rotated integrally with the rotary cage 120.

そこで、本実施例の溶融メッキ垂れ切り装置100が最も特徴とする撹拌分散手段の撹拌分散翼131と物品補足手段の物品捕捉壁132とについて以下詳しく説明する。
まず、撹拌分散翼131は、図3及び図4に示すように、三角柱状の部材を内カゴ130の内底面に十字状に形成して設置され、回転カゴ120の回転時には、内カゴ130の内底に投入された被溶融メッキ物品Mのリンクプレートを内カゴ130の内周面に向けて飛散させるようになっている。
Therefore, the stirring and dispersing blade 131 of the stirring and dispersing means and the article catching wall 132 of the article supplementing means, which are the most characteristic features of the hot dipping dripping apparatus 100 of this embodiment, will be described in detail below.
First, as shown in FIGS. 3 and 4, the stirring and dispersing blade 131 is installed by forming a triangular prism-like member in a cross shape on the inner bottom surface of the inner cage 130, and when the rotating cage 120 rotates, The link plate of the object to be plated M poured into the inner bottom is scattered toward the inner peripheral surface of the inner basket 130.

また、物品補足手段の物品捕捉壁132は、図3及び図4に示すように、内カゴ130の内周側に内周方向に沿って前記回転軸140と平行な縦筋の波状に凹凸形成され、その捕捉壁面には多数の穴孔が施されているため、回転カゴ120の回転時に内カゴ130内で掻き回される被溶融メッキ物品Mのリンクプレートをその谷間においてスリップすることなく確実に捕捉して被溶融メッキ物品Mのリンクプレートに回転力が効率よく伝達されて十分な遠心力を発揮するようになっている。   Further, as shown in FIG. 3 and FIG. 4, the article catching wall 132 of the article supplement means is formed with irregularities in the shape of a wave of vertical stripes parallel to the rotation shaft 140 along the inner circumferential direction on the inner circumferential side of the inner basket 130. Since the capture wall surface is provided with a large number of hole holes, the link plate of the material to be plated M to be stirred in the inner cage 130 when the rotary cage 120 is rotated can be surely prevented from slipping in the valleys. Thus, the rotational force is efficiently transmitted to the link plate of the hot-dip plated article M so as to exhibit a sufficient centrifugal force.

したがって、本実施例の溶融メッキ垂れ切り装置100では、被溶融メッキ物品Mのリンクプレートに付着していた余分な亜鉛溶融メッキ液が遠心力によって垂れ切りされ、次いで、この垂れ切りされた余分な溶融亜鉛メッキ液が物品捕捉壁131の壁面に施された穴孔及び内カゴ130に施された穴孔を通じて回転カゴ120の内周面に向かって飛ばされる。そして、このようにして飛ばされた余分な溶融亜鉛メッキ液は、回転カゴ120の底面に設けられた排出口から排出される。   Therefore, in the hot dipping dripping apparatus 100 of the present embodiment, the excess zinc molten plating solution adhering to the link plate of the object to be plated M is dripped by the centrifugal force, and then the dripped extra drip is removed. The hot dip galvanizing solution is blown toward the inner peripheral surface of the rotary cage 120 through the hole provided in the wall surface of the article catching wall 131 and the hole provided in the inner cage 130. The excess hot dip galvanizing solution thus blown off is discharged from a discharge port provided on the bottom surface of the rotating basket 120.

また、本実施例の溶融メッキ垂れ切り装置100では、図1乃至図2に示すように、前述した回転カゴ120の回転を強制停止させるブレーキ手段160が、回転カゴ120の回転軸140に付設されていることにより、このブレーキ手段160が遠心分離終了時に回転カゴ120を惰性で回転させることなく強制的に急停止させて垂れ切り処理を短時間で終了させるため、内カゴ130に対する被溶融メッキ物品Mのリンクプレートの貼り付きを回避することができるようになっている。   Further, in the hot-dip dripping apparatus 100 of the present embodiment, as shown in FIGS. 1 and 2, the brake means 160 for forcibly stopping the rotation of the rotary basket 120 is attached to the rotary shaft 140 of the rotary basket 120. As a result, the brake means 160 forcibly stops suddenly without rotating the rotary cage 120 by inertia at the end of the centrifugal separation, and the dripping process is completed in a short time. Sticking of the M link plate can be avoided.

つぎに、本発明の第2実施例である溶融メッキ垂れ切り装置200について、図5に示す内カゴ230の全体図に基づいて説明する。
ここで、本発明の第2実施例である溶融メッキ垂れ切り装置200における内カゴ230以外の構成は、前述した第1実施例の溶融メッキ垂れ切り装置100と全く同じであるため、第1実施例の溶融メッキ垂れ切り装置100に関する明細書、および、図1乃至図2に示す100番代の符号を200番代の符号に読み替えることによって、内カゴ230以外の構成についてはその説明を省略する。
Next, a hot dipping dripping apparatus 200 according to a second embodiment of the present invention will be described based on an overall view of the inner basket 230 shown in FIG.
Here, since the configuration other than the inner cage 230 in the hot dipping dripping apparatus 200 according to the second embodiment of the present invention is exactly the same as that of the hot dipping dripping apparatus 100 of the first embodiment described above, the first embodiment. The description of the example of the hot-dip dripping apparatus 100 and the description of the components other than the inner basket 230 are omitted by replacing the 100th generation code shown in FIGS. 1 and 2 with the 200th generation code. .

そこで、本第2実施例の溶融メッキ垂れ切り装置200が最も特徴とする物品補足手段の物品捕捉壁232について説明する。
すなわち、図5に示すように、第2実施例の溶融メッキ垂れ切り装置200における物品補足手段の物品捕捉壁232は、内カゴ230の内周側に内周方向に沿って前記回転軸240を中心として内カゴ230の下方から上方に向かって螺旋角が約45〜80°の螺旋状に凹凸形成され、その捕捉壁面には多数の穴孔が施されているため、回転カゴ220の回転時に内カゴ230内で掻き回される被溶融メッキ物品Mのリンクプレートをその谷間においてスリップすることなく確実に捕捉して被溶融メッキ物品Mのリンクプレートに回転力が効率よく伝達されて十分な遠心力を発揮するようになっている。
なお、図5における矢印は、物品補足手段の物品捕捉壁232が螺旋状に凹凸形成され内カゴ230の回転方向である。
Therefore, the article catching wall 232 of the article supplementing means, which is the most characteristic of the hot dipping dripping apparatus 200 of the second embodiment, will be described.
That is, as shown in FIG. 5, the article catching wall 232 of the article supplementing means in the hot dipping dripping apparatus 200 of the second embodiment has the rotating shaft 240 along the inner circumferential direction on the inner circumferential side of the inner basket 230. Since the concave and convex portions are formed in a spiral shape with a spiral angle of about 45 to 80 ° from the lower side to the upper side of the inner cage 230 as the center, and a large number of hole holes are made in the trapping wall surface, The link plate of the object to be plated M to be stirred in the inner basket 230 is surely captured without slipping in the valleys, and the rotational force is efficiently transmitted to the link plate of the object to be plated M to be sufficiently centrifuged. It comes to show power.
In addition, the arrow in FIG. 5 is the rotation direction of the inner cage 230 in which the article catching wall 232 of the article supplement means is formed in a spiral shape.

したがって、本実施例の溶融メッキ垂れ切り装置200では、被溶融メッキ物品Mのリンクプレートに付着していた余分な亜鉛溶融メッキ液が遠心力によって垂れ切りされ、次いで、この垂れ切りされた余分な溶融亜鉛メッキ液が物品捕捉壁231の壁面に施された穴孔及び内カゴ230に施された穴孔を通じて回転カゴ220の内周面に向かって飛ばされる。このとき、物品捕捉手段の物品捕捉壁232が、回転カゴの内周側に螺旋状に配置されていることにより、遠心分離時に回転カゴ内で掻き回される被溶融メッキ物品が回転カゴの下方から上方に向かって移動するため、被溶融メッキ物品を効率よく分散させる。そして、このようにして飛ばされた余分な溶融亜鉛メッキ液は、回転カゴ220の底面に設けられた排出口から排出される。   Therefore, in the hot dipping dripping apparatus 200 of the present embodiment, the excess zinc molten plating solution adhering to the link plate of the object to be plated M is dripped by the centrifugal force, and then the dripped surplus is removed. The hot dip galvanizing solution is blown toward the inner peripheral surface of the rotary cage 220 through the hole provided in the wall surface of the article catching wall 231 and the hole provided in the inner cage 230. At this time, the article catching wall 232 of the article catching means is spirally arranged on the inner peripheral side of the rotating basket, so that the object to be plated to be melted that is stirred in the rotating basket at the time of centrifugation is below the rotating basket. Therefore, the hot-dip plated article is efficiently dispersed. Then, the excess hot dip galvanizing solution thus blown off is discharged from a discharge port provided on the bottom surface of the rotary basket 220.

このようにして得られた本発明の第1実施例および第2実施例である溶融メッキ垂れ切り装置は、被溶融メッキ物品Mのリンクプレートが相互に密着させることなく余分な溶融亜鉛メッキ液を短時間で効率良く確実に垂れ切りできるとともに、このリンクプレートのメッキ斑を大幅に低減して品質バラツキを抑制でき、しかも、従来のような垂れ切り時の大幅な温度低下を見越した高めの溶融亜鉛メッキ温度500〜510℃に設定する必要がなく、このような高めのメッキ温度より低いメッキ温度約440℃程度に設定すれば良く、溶融亜鉛メッキ温度の温度制御が簡便となる。
さらに、従来のような溶融亜鉛メッキ温度500〜510℃に比べて、Fe−Znの拡散合金層の過剰な厚膜化(すなわち、異常成長)が起こり難くなるため、メッキ品質が一段と向上する。
In the hot-dip dripping apparatus according to the first and second embodiments of the present invention thus obtained, the excess hot-dip galvanizing solution can be removed without causing the link plates of the hot-plated article M to adhere to each other. In addition to being able to hang down efficiently and reliably in a short time, the unevenness of plating on the link plate can be greatly reduced and quality fluctuations can be suppressed, and high melting is anticipated in anticipation of a significant drop in temperature when dripping. There is no need to set the galvanizing temperature to 500 to 510 ° C., and the galvanizing temperature may be set to about 440 ° C. lower than the higher plating temperature, and the temperature control of the hot dip galvanizing temperature becomes simple.
Furthermore, compared to the conventional hot dip galvanizing temperature of 500 to 510 ° C., excessively thick Fe-Zn diffusion alloy layers (that is, abnormal growth) are less likely to occur, so the plating quality is further improved.

また、チェーン部品のひとつであるリンクプレートのメッキ斑が大幅に低減されて品質バラツキを抑制できるため、優れた耐食性を発揮するとともにチェーンの組み立て精度が著しく向上して優れたチェーン耐久性を発揮することができ、その効果は甚大である。   In addition, the plating spots on the link plate, one of the chain parts, can be greatly reduced to suppress quality variations, so that it exhibits excellent corrosion resistance and significantly improves chain assembly accuracy, and exhibits excellent chain durability. The effect is enormous.

本発明の第1実施例である溶融メッキ垂れ切り装置の全体概要図。1 is an overall schematic diagram of a hot dipping dripping apparatus according to a first embodiment of the present invention. 図1に示す溶融メッキ垂れ切り装置を模式的に示した全体断面図。FIG. 2 is an overall cross-sectional view schematically showing the hot dipping sagging apparatus shown in FIG. 1. 図1に示す溶融メッキ垂れ切り装置に用いた内カゴの全体図。The whole figure of the inner basket used for the hot dipping apparatus shown in FIG. 図1に示す溶融メッキ垂れ切り装置に用いた内カゴの平面図。The top view of the inner cage used for the hot dipping apparatus shown in FIG. 本発明の第2実施例である溶融メッキ垂れ切り装置に用いた内カゴの全体図。The whole figure of the inner basket used for the hot dipping apparatus which is the 2nd example of the present invention.

符号の説明Explanation of symbols

100 ・・・ 溶融メッキ垂れ切り装置
110 ・・・ 加熱炉
111 ・・・ 開閉蓋
120 ・・・ 回転カゴ
121 ・・・ 断熱材
122 ・・・ 嵌合用突起
130,230 ・・・ 内カゴ
131,231 ・・・ 撹拌分散翼
132,232 ・・・ 物品捕捉壁
133,233 ・・・ 係止用フランジ部
134,234 ・・・ 嵌合孔
135 ・・・ 内蓋
136,236 ・・・ 取っ手
137 ・・・ 係止部材
140 ・・・ 回転軸
150 ・・・ 駆動モーター
M ・・・ 被溶融メッキ物品
DESCRIPTION OF SYMBOLS 100 ... Hot-dipping dripping device 110 ... Heating furnace 111 ... Opening / closing lid 120 ... Rotating basket 121 ... Heat insulation material 122 ... Fit projection 130, 230 ... Inner basket 131, 231 ... Stirring dispersion blade 132,232 ... Article capturing wall 133,233 ... Locking flange part 134,234 ... Fitting hole 135 ... Inner lid 136,236 ... Handle 137・ ・ ・ Locking member 140 ・ ・ ・ Rotating shaft 150 ・ ・ ・ Drive motor M ・ ・ ・ Melted plating article

Claims (7)

多数の被溶融メッキ物品を加熱炉内の回転カゴ内に投入収集して前記被溶融メッキ物品に付着している余分な溶融メッキ液を遠心分離して除去する溶融メッキ垂れ切り装置において、
前記回転カゴ内で被溶融メッキ物品を捕捉する物品捕捉手段が、前記回転カゴの内周側に少なくとも内周方向に沿った凹凸状態で配置されていることを特徴とする溶融メッキ垂れ切り装置。
In the hot dipping dripping device that collects and collects a large number of hot-dip plating articles in a rotating basket in a heating furnace and removes the extra hot-plating solution adhering to the hot-dip plating article by centrifuging,
The hot dipping dripping device, wherein article catching means for catching a hot-dipped article in the rotating basket is arranged in an uneven state along the inner circumferential direction at least on the inner circumferential side of the rotating basket.
前記物品捕捉手段が、前記回転カゴの内周側に螺旋状に配置されていることを特徴とする請求項1記載の溶融メッキ垂れ切り装置。   The hot dipping dripping device according to claim 1, wherein the article catching means is spirally arranged on the inner peripheral side of the rotary basket. 前記被溶融メッキ物品を回転カゴの内周面に向けて撹拌分散させる撹拌分散手段が、前記回転カゴの内底側に配置されていることを特徴とする請求項1または請求項2記載の溶融メッキ垂れ切り装置。   The melting according to claim 1 or 2, wherein the stirring and dispersing means for stirring and dispersing the article to be plated to be melted toward the inner peripheral surface of the rotating basket is disposed on the inner bottom side of the rotating basket. Plating dripping device. 前記物品捕捉手段と撹拌分散手段とを一体に形成した内カゴが、前記回転カゴに対して同軸状態かつ着脱自在に内装されていることを特徴とする請求項3記載の溶融メッキ垂れ切り装置。   4. The hot dipped sagging apparatus according to claim 3, wherein an inner basket in which the article catching means and the stirring and dispersing means are integrally formed is mounted coaxially and detachably with respect to the rotating basket. 前記回転カゴの回転を強制停止させるブレーキ手段が、前記回転カゴの回転軸に付設されていることを特徴とする請求項4記載の溶融メッキ垂れ切り装置。   5. The hot dipping apparatus according to claim 4, wherein a brake means for forcibly stopping the rotation of the rotary basket is attached to a rotary shaft of the rotary basket. 前記溶融メッキ液が、溶融亜鉛からなることを特徴とする請求項1乃至請求項5のいずれか1項記載の溶融メッキ垂れ切り装置。   6. The hot dipping dripping apparatus according to claim 1, wherein the hot dipping solution is made of hot zinc. 前記被溶融メッキ物品が、チェーン部品であることを特徴とする請求項1乃至請求項6のいずれか1項記載の溶融メッキ垂れ切り装置。   7. The hot dipping dripping apparatus according to claim 1, wherein the hot dipped article is a chain part.
JP2006124113A 2006-04-27 2006-04-27 Device for removing excessive hot-dipping liquid Pending JP2007297649A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102703847A (en) * 2012-06-26 2012-10-03 安徽恒兴镀锌有限公司 Centrifugal dezincification device used for hot galvanizing
CN106222597A (en) * 2016-08-29 2016-12-14 海盐宝利机械有限公司 Strips centrifugal finding galvanizing system
CN110952057A (en) * 2019-12-04 2020-04-03 青岛大成索具有限公司 Centrifugal stripping device for hot galvanizing production line

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102703847A (en) * 2012-06-26 2012-10-03 安徽恒兴镀锌有限公司 Centrifugal dezincification device used for hot galvanizing
CN102703847B (en) * 2012-06-26 2013-12-04 安徽恒兴镀锌有限公司 Centrifugal dezincification device used for hot galvanizing
CN106222597A (en) * 2016-08-29 2016-12-14 海盐宝利机械有限公司 Strips centrifugal finding galvanizing system
CN110952057A (en) * 2019-12-04 2020-04-03 青岛大成索具有限公司 Centrifugal stripping device for hot galvanizing production line

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