WO2021229906A1 - Wire coil cooling device - Google Patents

Wire coil cooling device Download PDF

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Publication number
WO2021229906A1
WO2021229906A1 PCT/JP2021/009573 JP2021009573W WO2021229906A1 WO 2021229906 A1 WO2021229906 A1 WO 2021229906A1 JP 2021009573 W JP2021009573 W JP 2021009573W WO 2021229906 A1 WO2021229906 A1 WO 2021229906A1
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Prior art keywords
wire
coil
wire coil
covering member
cooling device
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PCT/JP2021/009573
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French (fr)
Japanese (ja)
Inventor
邦寛 北橋
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中外炉工業株式会社
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Publication of WO2021229906A1 publication Critical patent/WO2021229906A1/en

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length

Definitions

  • the present invention relates to a wire coil cooling device capable of more uniformly cooling the wire coil.
  • Patent Documents 1 and 2 are known regarding the handling of a wire rod coil in which a wire rod such as carbon steel or stainless steel is wound in a direction orthogonal to the winding direction.
  • the "wire coil” of Patent Document 1 is a wire coil in which binding hoops are wound in a plurality of places in the wire winding direction in a direction orthogonal to the wire winding direction, and the width of the wire coil is set on the body portion of the wire coil. It is configured by winding a body-wound hoop that has a certain band shape and is softer than an iron wire in the winding direction of the wire and also crosses the binding hoop.
  • one end of the hollow portion of the wire rod coil is closed with a closing plate, and air is blown from the other end side of the hollow portion to cool the wire rod coil.
  • the air blown from the other end side of the hollow portion flows toward the closing plate, the straight direction is blocked by the closing plate, and the air spreads in the circumferential direction on one end side of the hollow portion of the wire rod coil.
  • the dynamic pressure of the air is higher near the one end side blocked by the closing plate than at the other end side of the cavity of the wire coil into which the air is blown.
  • the present invention has been devised in view of the above-mentioned conventional problems, and an object of the present invention is to provide a wire coil cooling device capable of more uniformly cooling the wire coil.
  • the wire rod coil cooling device is provided on one side of the wire rod coil in the penetrating direction, a covering member covering the wire rod coil, and the other side of the wire rod coil in the penetrating direction.
  • the cover member has a blower hole for blowing air toward the cover member side, and the cover member has a protrusion inserted inside the wire coil, and the wire coil and the outer peripheral surface of the protrusion are provided with each other.
  • a suspension support is provided between the spaces and further provided with the covering member, and the suspension support is provided from the suspension support portion suspended from above and the suspension support portion. It is characterized by including a guide portion that guides the vertical movement of the covering member that is vertically installed and is in contact with the wire rod coil.
  • the suspension support portion is characterized in that it is suspended by a suspension member via a pulley arranged above.
  • the covering member is characterized in that a cushion material is provided at a portion facing the wire rod coil.
  • the cushion material is characterized by being a copper wire mesh.
  • the wire rod coil cooling device In the wire rod coil cooling device according to the present invention, the wire rod coil can be cooled more uniformly. Further, since the covering member moves in the vertical direction by being guided by the suspended guide portion from the hanging support portion suspended from above, the covering member is closed by the covering member, for example, because the number of stacked wire coil coils is different. Even if the position (height) changes, the trouble of hanging operation can be eliminated.
  • FIG. 3 is a vertical cross-sectional view showing a state before installing the wire rod coil in the wire rod coil cooling device shown in FIG. 1.
  • FIG. 3 is a vertical cross-sectional view showing a state in which the wire coil is installed in a high stack on the cooling device for the wire coil shown in FIG. It is explanatory drawing explaining the state of the air flow obtained by the protrusion in the cooling device of the wire rod coil shown in FIG. It is explanatory drawing explaining the state of the air flow when there is no protrusion unlike this embodiment. It is explanatory drawing explaining the problem in the case of operating by directly suspending a hanging top plate with a wire, unlike this embodiment. It is a vertical sectional view which shows the modification of the cooling device of the wire rod coil shown in FIG.
  • the wire coil cooling device 1 As shown in FIG. 1, the wire coil cooling device (hereinafter referred to as a cooling device) 1 according to the present embodiment winds the wire 2a in a cylindrical shape, and winds the wound wire 2a at a plurality of locations in the circumferential direction. It is a device for cooling the wire rod coil 2 configured by bundling with a band or the like.
  • the inside of the wire coil 2 formed in a cylindrical shape is a hollow portion 2b in the penetrating direction (axial direction).
  • the cooling device 1 includes a mounting table 3 on which the wire coil 2 is mounted, a hanging support 4 suspended above the mounting table 3, and a hanging support 4.
  • the cover member 5 is provided so as to be movable in the vertical direction. The covering member 5 is guided to move in the vertical direction by the hanging support 4.
  • the mounting table 3 is formed in a rectangular shape, for example, and includes a top plate 3a on which the wire coil 2 is mounted. In the center of the upper surface plate 3a, a blower hole 3b having a hole diameter smaller than the inner diameter of the wire rod coil 2 to be mounted is provided.
  • the blower hole 3b is located on the lower end 2d side of the wire rod coil 2 in the penetrating direction of the wire rod coil 2 mounted on the mounting table 3.
  • Air supplied from a blower (not shown) is blown upward from the blower hole 3b. That is, the air is blown toward the covering member 5 side into the hollow portion 2b of the wire rod coil 2 placed on the upper surface plate 3a.
  • a roller or a chain conveyor instead of the mounting table 3.
  • a roller or a chain is arranged so as to avoid the upper part of the ventilation hole 3b so that ventilation can be secured.
  • the suspension support 4 includes a suspension top plate 7 as a suspension support portion suspended from above by a wire 6 or the like, and a plurality of rods 8 as a guide portion suspended from the lower surface 7a of the suspension top plate 7. And have.
  • the hanging top plate 7 is suspended by a wire 6 as a hanging member via a pulley 12 arranged above.
  • the wire 6 is turned around by the pulley 12 and is wound up and unwound by the winch 13 provided on the side.
  • a chain may be used instead of the wire 6, and in this case, a sprocket is used instead of the pulley 12.
  • the hanging top plate 7 is formed in a flat rectangular shape, for example, and is suspended so as to face the upper surface plate 3a at intervals in the vertical direction.
  • the rod 8 has a columnar shape and is vertically hung at each of the four corners of the hanging top plate 7.
  • the rod 8 is slidably inserted into the covering member 5, whereby the covering member 5 is guided by the rod 8 and can move in the vertical direction.
  • a stopper 8a for restricting the downward movement of the covering member 5 is provided.
  • the covering member 5 includes a covering plate 9 formed in a rectangular shape having substantially the same plane as the hanging top plate 7, and a cylindrical protrusion 10 provided in the center of the lower surface 9a of the covering plate 9 so as to project downward.
  • a cushioning material 11 provided on the lower surface 9a of the covering plate 9 is provided.
  • Insertion holes 9b through which the rod 8 of the suspension support 4 is inserted are provided at the four corners of the cover plate 9.
  • the protrusion 10 is formed with an outer diameter smaller than the inner diameter of the wire coil 2.
  • the lower surface 10a of the protrusion 10 is a top plate in a state where the covering member 5 is placed on the wire coil 2. It is formed so as to be located above 3a.
  • the outer peripheral surface 10b of the protrusion 10 inserted inside the wire rod coil 2 is separated from the wire rod 2a on the inner peripheral side of the wire rod coil 2. That is, a gap S is provided between the wire coil 2 into which the protrusion 10 is inserted and the outer peripheral surface 10b of the protrusion 10.
  • the cushion material 11 is provided at a portion facing the wire rod coil 2 except for the protrusion 10 on the lower surface 9a of the cover plate 9.
  • the cushion material 11 is formed by stacking, for example, a plurality of copper net materials.
  • the cushion material 11 may be an elastic member having heat resistance. As a result, it is possible to prevent the surface of the upper end 2c of the wire rod coil 2 from being scratched by the vibration of the cover plate 9 when the air is blown.
  • the covering plate 9 is located on the lower end side of the rod 8 due to its own weight, and hits the stopper 8a, as shown in FIG. I'm in contact.
  • the wire rod coil 2 When the wire rod coil 2 is cooled by the cooling device 1, as shown in FIG. 1, the wire rod coil 2 is placed on the upper surface plate 3a of the mounting table 3 and arranged under the covering plate 9 of the covering member 5.
  • the blower hole 3b of the upper surface plate 3a is arranged so as to be surrounded by the wire rod coil 2, and the covering plate 9 is placed on the wire rod coil 2.
  • the protrusion 10 is inserted into the hollow portion 2b inside the wire rod coil 2, the cushion material 11 abuts on the upper end 2c which is one side of the wire rod coil 2, and the entire area on the wire rod coil 2 is covered by the covering member 5. ..
  • the covering member 5 abuts on the upper end 2c of the wire rod coil 2 in the penetrating direction and covers the wire rod coil 2.
  • the positions of the wire rod coils 2 are aligned and the cavity portions 2b are stacked so as to be continuous.
  • the wire coil 2 When the wire coil 2 is stacked on the mounting table 3, the wire coil 2 is placed on the mounting table 3 in a state where the hanging top plate 7 is lifted higher than the mounting table 3 position together with the covering plate 9 via the rod 8. I will put it on.
  • the stacking height (stacked number) of the wire coil 2 differs from time to time.
  • the hanging top plate 7 After the mounting of the wire coil 2 on the mounting table 3 is completed, the hanging top plate 7 is lowered. After the cover plate 9 rides on the upper end 2c of the wire rod coil 2, the hanging top plate 7 is further lowered while the rod 8 slides with respect to the cover plate 9, and is suspended at the set minimum lowered position each time. The top plate 7 is stopped.
  • the weight of the covering member 5 is set so that the covering member 5 does not rise due to the wind pressure.
  • the air between the blower hole 3b and the protrusion 10 spreads in the wire coil 2 in the outer peripheral direction (from the inside to the outside of the wire coil 2), and the wire coil 2 and the protrusion 10
  • the air that has entered the gap S between them also enters the gap S, and further spreads in the wire rod coil 2 in the outer peripheral direction (from the inside to the outside of the wire rod coil 2) while facing the cover plate 9 side.
  • the wire coil 2 comes into contact with the upper end 2c of the uppermost wire coil 2.
  • the portion having high dynamic pressure does not concentrate only on the covering member 5 side, and the amount of air passing between the wire rods 2a of the wire rod coil 2 is made uniform in the entire wire rod coil 2. Can be. Thereby, the wire rod coil 2 can be cooled more uniformly.
  • the covering member 5 Since the covering member 5 is guided in the vertical direction by being guided by the rod 8 suspended from the hanging top plate 7 suspended from above, the covering member 5 is moved in the vertical direction, for example, because the number of stacked wire coil 2 is different. Even if the closing position (height) is changed, the wire 6 for suspending the suspension support 4 does not loosen.
  • the length of the wire 6 is determined so as to be in a stretched state at the highest position of the assumed wire material coil 2. You should keep it. As a result, the hanging top plate 7 can be lowered, and even after the cover plate 9 rides on the upper end 2c of the wire coil 2, the hanging top plate 7 can continue to be lowered, and what is the stacking height of the wire coil 2? Even in such a case, since the wire 6 is stopped in a stretched state, it does not come off from the pulley 12, and troubles in the suspension operation can be eliminated.
  • the covering member 5 is guided by a plurality of rods 8 suspended from the hanging top plate 7, it is possible to prevent the position of the covering member 5 from being displaced with respect to the wire rod coil 2.
  • the covering member 5 does not shift in position with respect to the wire rod coil 2 even while the hanging top plate 7 is descending while sliding with respect to the rod 8.
  • the cover member 5 is provided with the cushion material 11 at a portion facing the wire rod coil 2, it is possible to reliably prevent the wire rod coil 2 from being damaged by the cover member 5.
  • FIG. 7 shows a modified example of the above embodiment.
  • the surface of the upper end 2c of the wire rod coil 2 is not necessarily horizontally flat and may be inclined. In this modification, even when the surface of the upper end 2c of the wire coil 2 is inclined in this way, it can be installed with the cover plate 9 tilted on it, and the upper end 2c of the wire coil 2 is suitable. It is designed to be able to be closed.
  • the hole diameter of the insertion hole 9b of the cover plate 9 is formed to be larger than the outer diameter of the rod 8.
  • the cover plate 9 is allowed to be tilted with respect to the rod 8, and the cover plate 9 can be installed on the upper end 2c of the wire rod coil 2 in accordance with the inclination of the surface of the upper end 2c.
  • the upper surface of the stopper 8a of the rod 8 is formed in a cone shape that narrows upward, and the insertion hole 9b itself is formed in a cone shape that expands downward, or the same applies to the lower part of the insertion hole 9b. It is preferable to attach a cone-shaped guide member 14.
  • the stopper 8a enters the insertion hole 9b or the guide member 14, and the cover plate 9 can be returned to the horizontal posture and centered and lifted.
  • the cover plate 9 can be used. It can be properly installed to efficiently cool the wire coil 2.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

The present invention addresses the problem of providing a wire coil cooling device that is capable of more uniformly cooling a wire coil. A wire coil cooling device (1) according to the present invention comprises: a covering member (5) that abuts on the upper end (2c), in the through direction, of a wire coil (2) so as to cover the wire coil; and an air-blowing hole (3b) that is provided on the lower end (2d) side, in the through direction, of the wire coil so as to blow air into the wire coil toward the covering member, wherein the covering member is provided with a protrusion (10) which is to be inserted into the wire coil. The wire coil cooling device (1) according to the present invention further comprises: a suspended top plate (7) that is suspended from above; and a rod (8) that is provided perpendicularly to the suspended top plate so as to guide vertical movements of the covering member (5) which abuts on the wire coil.

Description

線材コイルの冷却装置Wire coil cooling device
　本発明は、線材コイルをより均一に冷却することが可能な線材コイルの冷却装置に関する。 The present invention relates to a wire coil cooling device capable of more uniformly cooling the wire coil.
　従来、炭素鋼、ステンレス鋼などの線材を巻回方向と直交する方向に巻締めした線材コイルの扱いに関して、特許文献１及び２が知られている。 Conventionally, Patent Documents 1 and 2 are known regarding the handling of a wire rod coil in which a wire rod such as carbon steel or stainless steel is wound in a direction orthogonal to the winding direction.
　特許文献１の「線材コイル」は、線材の巻回方向の複数個所に、線材の巻回方向と直交する方向に結束フープを巻締めした線材コイルにおいて、前記線材コイルの胴体部分に、幅のあるバンド状をなしかつ鉄線よりも軟らかい胴巻フープを前記線材の巻回方向にかつまた前記結束フープと交差させて巻締めして構成されている。 The "wire coil" of Patent Document 1 is a wire coil in which binding hoops are wound in a plurality of places in the wire winding direction in a direction orthogonal to the wire winding direction, and the width of the wire coil is set on the body portion of the wire coil. It is configured by winding a body-wound hoop that has a certain band shape and is softer than an iron wire in the winding direction of the wire and also crosses the binding hoop.
　特許文献２の「線材コイルの冷却方法および冷却装置」は、線材コイルを存置場所に置き、線材コイルの空洞部の一端は塞ぎ板で塞ぐ。送風機によって空洞部の他端に空気を吹込むことにより線材コイルの各部分を均一かつ急速に冷却することができる。このようにして、６００℃から２００℃の間における線材コイルの各部分の冷却速度を１６℃／ｍｉｎ以上として冷却するようにしている。 In Patent Document 2, "Cooling method and cooling device for wire coil", the wire coil is placed in a storage place, and one end of the hollow portion of the wire coil is closed with a closing plate. By blowing air into the other end of the cavity by a blower, each part of the wire coil can be cooled uniformly and rapidly. In this way, the cooling rate of each part of the wire coil between 600 ° C. and 200 ° C. is set to 16 ° C./min or more for cooling.
特開平３－９８８６３号公報Japanese Unexamined Patent Publication No. 3-98863 特開平７－３００６２４号公報Japanese Unexamined Patent Publication No. 7-300624
　特許文献２の冷却装置は、線材コイルの空洞部の一端を塞ぎ板で塞ぎ、空洞部の他端側から空気を吹き込むことにより、線材コイルを冷却している。 In the cooling device of Patent Document 2, one end of the hollow portion of the wire rod coil is closed with a closing plate, and air is blown from the other end side of the hollow portion to cool the wire rod coil.
　このため、空洞部の他端側から吹き込まれた空気は、塞ぎ板に向かって流れ、塞ぎ板により直進方向が堰き止められて、線材コイルの空洞部の一端側では周方向に広がっていく。 Therefore, the air blown from the other end side of the hollow portion flows toward the closing plate, the straight direction is blocked by the closing plate, and the air spreads in the circumferential direction on one end side of the hollow portion of the wire rod coil.
　その結果、空気の動圧は、空気が吹き込まれる線材コイルの空洞部の他端側よりも、塞ぎ板で塞がれた一端側近傍で高くなる。 As a result, the dynamic pressure of the air is higher near the one end side blocked by the closing plate than at the other end side of the cavity of the wire coil into which the air is blown.
　従って、空洞部の他端側よりも一端側の近傍において、線材間を通り抜ける空気の量が大幅に多くなってしまい、線材コイルを均一に冷却できないという課題があった。 Therefore, there is a problem that the amount of air passing between the wire rods becomes significantly larger in the vicinity of one end side than the other end side of the cavity portion, and the wire rod coil cannot be cooled uniformly.
　本発明は上記従来の課題に鑑みて創案されたものであって、線材コイルをより均一に冷却することが可能な線材コイルの冷却装置を提供することを目的とする。 The present invention has been devised in view of the above-mentioned conventional problems, and an object of the present invention is to provide a wire coil cooling device capable of more uniformly cooling the wire coil.
　本発明にかかる線材コイルの冷却装置は、線材コイルの貫通方向における一方側に当接して、該線材コイルを覆う覆い部材と、上記線材コイルの貫通方向における他方側に設けられ、該線材コイルの内側に上記覆い部材側に向かって空気を吹き出す送風孔とを有し、上記覆い部材は、上記線材コイルの内側に挿入される突部を備え、上記線材コイルと上記突部の外周面との間には、空隙が設けられると共に、さらに、上記覆い部材が設けられる吊下支持体を有し、該吊下支持体は、上方から吊り下げられる吊下支持部と、該吊下支持部から垂設され、上記線材コイルに当接される上記覆い部材の上下方向の移動を案内するガイド部とを備えることを特徴とする。 The wire rod coil cooling device according to the present invention is provided on one side of the wire rod coil in the penetrating direction, a covering member covering the wire rod coil, and the other side of the wire rod coil in the penetrating direction. The cover member has a blower hole for blowing air toward the cover member side, and the cover member has a protrusion inserted inside the wire coil, and the wire coil and the outer peripheral surface of the protrusion are provided with each other. A suspension support is provided between the spaces and further provided with the covering member, and the suspension support is provided from the suspension support portion suspended from above and the suspension support portion. It is characterized by including a guide portion that guides the vertical movement of the covering member that is vertically installed and is in contact with the wire rod coil.
　前記吊下支持部は、上方に配置される滑車を介して、吊り下げ部材で吊り下げられていることを特徴とする。 The suspension support portion is characterized in that it is suspended by a suspension member via a pulley arranged above.
　前記覆い部材には、前記線材コイルと対向する部位に、クッション材が設けられることを特徴とする。 The covering member is characterized in that a cushion material is provided at a portion facing the wire rod coil.
　前記クッション材は、銅製の金網であることを特徴とする。 The cushion material is characterized by being a copper wire mesh.
　本発明にかかる線材コイルの冷却装置にあっては、線材コイルをより均一に冷却することができる。また、覆い部材は、上方から吊り下げられた吊下支持部から垂設されたガイド部に案内されて上下方向に移動するので、例えば線材コイルの積み上げ数が異なるなどして、覆い部材により塞ぐ位置（高さ）が変わったとしても、吊り操作のトラブルを無くすことができる。 In the wire rod coil cooling device according to the present invention, the wire rod coil can be cooled more uniformly. Further, since the covering member moves in the vertical direction by being guided by the suspended guide portion from the hanging support portion suspended from above, the covering member is closed by the covering member, for example, because the number of stacked wire coil coils is different. Even if the position (height) changes, the trouble of hanging operation can be eliminated.
本発明に係る線材コイルの冷却装置の好適な一実施形態を示す縦断面図である。It is a vertical sectional view which shows one preferable embodiment of the cooling device of the wire rod coil which concerns on this invention. 図１に示した線材コイルの冷却装置に線材コイルを設置する前の様子を示す縦断面図である。FIG. 3 is a vertical cross-sectional view showing a state before installing the wire rod coil in the wire rod coil cooling device shown in FIG. 1. 図１に示した線材コイルの冷却装置に、線材コイルを高く重ねて設置した様子を示す縦断面図である。FIG. 3 is a vertical cross-sectional view showing a state in which the wire coil is installed in a high stack on the cooling device for the wire coil shown in FIG. 図１に示した線材コイルの冷却装置で、突部によって得られる空気の流れの様子を説明する説明図である。It is explanatory drawing explaining the state of the air flow obtained by the protrusion in the cooling device of the wire rod coil shown in FIG. 本実施形態と異なり、突部がない場合の空気の流れの様子を説明する説明図である。It is explanatory drawing explaining the state of the air flow when there is no protrusion unlike this embodiment. 本実施形態と異なり、吊下天板をワイヤーで直接吊り下げて操作する場合の問題点を説明する説明図である。It is explanatory drawing explaining the problem in the case of operating by directly suspending a hanging top plate with a wire, unlike this embodiment. 図１に示した線材コイルの冷却装置の変形例を示す縦断面図である。It is a vertical sectional view which shows the modification of the cooling device of the wire rod coil shown in FIG.
　以下に、本発明にかかる線材コイルの冷却装置の好適な一実施形態を、添付図面を参照して詳細に説明する。本実施形態に係る線材コイルの冷却装置（以下、冷却装置という）１は、図１に示すように、線材２ａを円筒状に巻回し、巻回された線材２ａを、円周方向における複数箇所でバンド等により束ねて構成した線材コイル２を冷却する装置である。 Hereinafter, a preferred embodiment of the wire coil cooling device according to the present invention will be described in detail with reference to the attached drawings. As shown in FIG. 1, the wire coil cooling device (hereinafter referred to as a cooling device) 1 according to the present embodiment winds the wire 2a in a cylindrical shape, and winds the wound wire 2a at a plurality of locations in the circumferential direction. It is a device for cooling the wire rod coil 2 configured by bundling with a band or the like.
　円筒状に形成される線材コイル２の内側は、貫通方向（軸方向）に、空洞部２ｂとなっている。 The inside of the wire coil 2 formed in a cylindrical shape is a hollow portion 2b in the penetrating direction (axial direction).
　冷却装置１は、図１及び図２に示すように、線材コイル２が載置される載置台３と、載置台３の上方に吊り下げられた吊下支持体４と、吊下支持体４に上下方向へ移動可能に設けられる覆い部材５とを備えている。覆い部材５は、吊り下げ支持体４により、上下方向の移動が案内される。 As shown in FIGS. 1 and 2, the cooling device 1 includes a mounting table 3 on which the wire coil 2 is mounted, a hanging support 4 suspended above the mounting table 3, and a hanging support 4. The cover member 5 is provided so as to be movable in the vertical direction. The covering member 5 is guided to move in the vertical direction by the hanging support 4.
　載置台３は、例えば平面矩形状に形成され、線材コイル２が載置される上面板３ａを備えている。上面板３ａの中央には、載置される線材コイル２の内径よりも小さな孔径の送風孔３ｂが設けられている。 The mounting table 3 is formed in a rectangular shape, for example, and includes a top plate 3a on which the wire coil 2 is mounted. In the center of the upper surface plate 3a, a blower hole 3b having a hole diameter smaller than the inner diameter of the wire rod coil 2 to be mounted is provided.
　送風孔３ｂは、載置台３に載置される線材コイル２の貫通方向における線材コイル２の下端２ｄ側に位置することになる。 The blower hole 3b is located on the lower end 2d side of the wire rod coil 2 in the penetrating direction of the wire rod coil 2 mounted on the mounting table 3.
　送風孔３ｂからは、図示しない送風機から供給される空気が上方に向かって吹き出される。すなわち、空気は、上面板３ａに載置された線材コイル２の空洞部２ｂに、覆い部材５側へ向かって吹き出される。 Air supplied from a blower (not shown) is blown upward from the blower hole 3b. That is, the air is blown toward the covering member 5 side into the hollow portion 2b of the wire rod coil 2 placed on the upper surface plate 3a.
　ここで、載置台３の代わりに、ローラやチェーンコンベアを用い、線材コイル２を順次搬入、搬出することも可能である。その場合には、送風孔３ｂの上部を避けてローラやチェーンを配置して、通風を確保できるようにしておく。 Here, it is also possible to sequentially carry in and out the wire rod coil 2 by using a roller or a chain conveyor instead of the mounting table 3. In that case, a roller or a chain is arranged so as to avoid the upper part of the ventilation hole 3b so that ventilation can be secured.
　吊下支持体４は、上方からワイヤー６等で吊り下げられる吊下支持部としての吊下天板７と、吊下天板７の下面７ａから垂設されたガイド部としての複数のロッド８とを備えている。 The suspension support 4 includes a suspension top plate 7 as a suspension support portion suspended from above by a wire 6 or the like, and a plurality of rods 8 as a guide portion suspended from the lower surface 7a of the suspension top plate 7. And have.
　吊下天板７は、上方に配置される滑車１２を介して、吊り下げ部材としてのワイヤー６で吊り下げられている。ワイヤー６は、滑車１２で向きが変えられ、側方に設けられたウインチ１３で巻き上げ、巻き降ろしされる。ワイヤー６に代えて、チェーンを採用しても良く、この場合には、滑車１２に代えて、スプロケットが用いられる。 The hanging top plate 7 is suspended by a wire 6 as a hanging member via a pulley 12 arranged above. The wire 6 is turned around by the pulley 12 and is wound up and unwound by the winch 13 provided on the side. A chain may be used instead of the wire 6, and in this case, a sprocket is used instead of the pulley 12.
　吊下天板７は、例えば平面矩形状に形成され、上面板３ａに対し、上下方向に間隔を隔てて対面するように吊り下げられている。 The hanging top plate 7 is formed in a flat rectangular shape, for example, and is suspended so as to face the upper surface plate 3a at intervals in the vertical direction.
　ロッド８は、円柱状をなし、吊下天板７の四隅にそれぞれ鉛直方向に垂設されている。ロッド８は、覆い部材５にスライド自在に挿通され、これにより、覆い部材５は、ロッド８に案内されて、上下方向に移動可能とされる。 The rod 8 has a columnar shape and is vertically hung at each of the four corners of the hanging top plate 7. The rod 8 is slidably inserted into the covering member 5, whereby the covering member 5 is guided by the rod 8 and can move in the vertical direction.
　ロッド８の下端には、覆い部材５の下方への移動を規制するストッパー８ａが設けられている。 At the lower end of the rod 8, a stopper 8a for restricting the downward movement of the covering member 5 is provided.
　覆い部材５は、吊下天板７とほぼ同じ平面矩形状に形成された覆い板９と、覆い板９の下面９ａの中央に、下方へ突出させて設けられた円柱状の突部１０と、覆い板９の下面９ａに設けられたクッション材１１とを備えている。 The covering member 5 includes a covering plate 9 formed in a rectangular shape having substantially the same plane as the hanging top plate 7, and a cylindrical protrusion 10 provided in the center of the lower surface 9a of the covering plate 9 so as to project downward. A cushioning material 11 provided on the lower surface 9a of the covering plate 9 is provided.
　覆い板９の四隅には、吊下支持体４のロッド８が挿通される挿通孔９ｂが設けられている。 Insertion holes 9b through which the rod 8 of the suspension support 4 is inserted are provided at the four corners of the cover plate 9.
　突部１０は、線材コイル２の内径よりも小さな外径で形成されている。突部１０が載置台３に載置された線材コイル２の内側に挿入されることにより、覆い部材５が線材コイル２上に載置された状態では、突部１０の下面１０ａは、上面板３ａよりも上方に位置するように形成されている。 The protrusion 10 is formed with an outer diameter smaller than the inner diameter of the wire coil 2. By inserting the protrusion 10 inside the wire coil 2 mounted on the mounting table 3, the lower surface 10a of the protrusion 10 is a top plate in a state where the covering member 5 is placed on the wire coil 2. It is formed so as to be located above 3a.
　線材コイル２の内側に挿入された突部１０の外周面１０ｂは、線材コイル２の内周側の線材２ａと間隔が隔てられている。すなわち、突部１０が挿入された線材コイル２と、突部１０の外周面１０ｂとの間には空隙Ｓが設けられている。 The outer peripheral surface 10b of the protrusion 10 inserted inside the wire rod coil 2 is separated from the wire rod 2a on the inner peripheral side of the wire rod coil 2. That is, a gap S is provided between the wire coil 2 into which the protrusion 10 is inserted and the outer peripheral surface 10b of the protrusion 10.
　クッション材１１は、覆い板９の下面９ａにおける突部１０を除く、線材コイル２と対向する部位に設けられる。 The cushion material 11 is provided at a portion facing the wire rod coil 2 except for the protrusion 10 on the lower surface 9a of the cover plate 9.
　クッション材１１は、例えば銅製の網材を複数枚重ねて取り付けて形成されている。クッション材１１は、耐熱性のある弾性部材であればよい。これにより、送風したときの覆い板９の振動などで線材コイル２の上端２ｃの面に傷が付くことを防ぐことができる。 The cushion material 11 is formed by stacking, for example, a plurality of copper net materials. The cushion material 11 may be an elastic member having heat resistance. As a result, it is possible to prevent the surface of the upper end 2c of the wire rod coil 2 from being scratched by the vibration of the cover plate 9 when the air is blown.
　冷却装置１は、線材コイル２が載置台３に載置されていない状態では図２に示すように、覆い板９が、自重により、ロッド８の下端側に位置しており、ストッパー８ａに当接している。 In the cooling device 1, when the wire coil 2 is not mounted on the mounting table 3, the covering plate 9 is located on the lower end side of the rod 8 due to its own weight, and hits the stopper 8a, as shown in FIG. I'm in contact.
　冷却装置１により線材コイル２を冷却する場合には図１に示すように、載置台３の上面板３ａ上に線材コイル２を載置し、覆い部材５の覆い板９の下に配置する。 When the wire rod coil 2 is cooled by the cooling device 1, as shown in FIG. 1, the wire rod coil 2 is placed on the upper surface plate 3a of the mounting table 3 and arranged under the covering plate 9 of the covering member 5.
　このとき、上面板３ａの送風孔３ｂを線材コイル２が囲むように配置し、線材コイル２上に覆い板９を載置する。 At this time, the blower hole 3b of the upper surface plate 3a is arranged so as to be surrounded by the wire rod coil 2, and the covering plate 9 is placed on the wire rod coil 2.
　これにより、線材コイル２内側の空洞部２ｂに突部１０が挿入され、クッション材１１が線材コイル２の一方側となる上端２ｃに当接し、線材コイル２上の全域が覆い部材５により覆われる。 As a result, the protrusion 10 is inserted into the hollow portion 2b inside the wire rod coil 2, the cushion material 11 abuts on the upper end 2c which is one side of the wire rod coil 2, and the entire area on the wire rod coil 2 is covered by the covering member 5. ..
　すなわち、覆い部材５は、線材コイル２の貫通方向における上端２ｃに当接して、当該線材コイル２を覆う。 That is, the covering member 5 abuts on the upper end 2c of the wire rod coil 2 in the penetrating direction and covers the wire rod coil 2.
　複数の線材コイル２を冷却する場合には、各線材コイル２の位置を揃えて空洞部２ｂが連続するように積み重ねる。 When cooling a plurality of wire rod coils 2, the positions of the wire rod coils 2 are aligned and the cavity portions 2b are stacked so as to be continuous.
　線材コイル２を載置台３上に積み重ねる場合、ロッド８を介して覆い板９と共に、吊下天板７を、載置台３位置よりも高く吊り上げた状態で、線材コイル２を載置台３の上に載せていく。線材コイル２の積み上げ高さ（積み上げ個数）は、都度で異なる。線材コイル２の載置台３上への載置が完了したら、その後、吊下天板７を降ろしていく。覆い板９が線材コイル２の上端２ｃに乗った後は、覆い板９に対してロッド８がスライドしながら吊下天板７がさらに下がっていき、毎回、設定された最下降位置で吊下天板７は停止される。 When the wire coil 2 is stacked on the mounting table 3, the wire coil 2 is placed on the mounting table 3 in a state where the hanging top plate 7 is lifted higher than the mounting table 3 position together with the covering plate 9 via the rod 8. I will put it on. The stacking height (stacked number) of the wire coil 2 differs from time to time. After the mounting of the wire coil 2 on the mounting table 3 is completed, the hanging top plate 7 is lowered. After the cover plate 9 rides on the upper end 2c of the wire rod coil 2, the hanging top plate 7 is further lowered while the rod 8 slides with respect to the cover plate 9, and is suspended at the set minimum lowered position each time. The top plate 7 is stopped.
　載置台３に線材コイル２が載置され、線材コイル２上に覆い部材５が載置された状態で、送風孔３ｂから空気が覆い板９側に向かって吹き出される。 With the wire coil 2 mounted on the mounting table 3 and the covering member 5 mounted on the wire coil 2, air is blown from the blower hole 3b toward the covering plate 9.
　このとき、覆い部材５が風圧により浮き上がらないように、覆い部材５の重量が設定されている。 At this time, the weight of the covering member 5 is set so that the covering member 5 does not rise due to the wind pressure.
　送風孔３ｂから覆い板９側に向かって吹き出された空気は、空洞部２ｂを通って覆い部材５の突部１０に向かって流れる。 The air blown from the blower hole 3b toward the cover plate 9 side flows through the cavity portion 2b toward the protrusion 10 of the cover member 5.
　送風孔３ｂから突部１０にわたる間の空気は、図４に示すように、線材コイル２内を外周方向（線材コイル２の内側から外側）に向けて広がると共に、線材コイル２と突部１０との間の空隙Ｓにも進入し、空隙Ｓに侵入した空気はさらに、覆い板９側に向かいつつ線材コイル２内を外周方向（線材コイル２の内側から外側）へも広がっていく。 As shown in FIG. 4, the air between the blower hole 3b and the protrusion 10 spreads in the wire coil 2 in the outer peripheral direction (from the inside to the outside of the wire coil 2), and the wire coil 2 and the protrusion 10 The air that has entered the gap S between them also enters the gap S, and further spreads in the wire rod coil 2 in the outer peripheral direction (from the inside to the outside of the wire rod coil 2) while facing the cover plate 9 side.
　このため、突部１０が設けられていない図５の場合には、空洞部２ｂ内において、覆い板９周辺だけが極端に空気の動圧が高くなるが、突部１０を設けることにより、上述の空隙Ｓの効果によって、覆い板９周辺から空気が逃げ易くなるので、線材コイル２の下端２ｄから上端２ｃにわたり、空洞部２ｂ全体にほぼ均一な動圧が生じる。 Therefore, in the case of FIG. 5 in which the protrusion 10 is not provided, the dynamic pressure of air becomes extremely high only around the cover plate 9 in the cavity 2b. Due to the effect of the void S, air easily escapes from the periphery of the cover plate 9, so that a substantially uniform dynamic pressure is generated in the entire cavity 2b from the lower end 2d to the upper end 2c of the wire rod coil 2.
　つまり、本実施形態の冷却装置１によれば、線材コイル２の上端２ｃ、複数の線材コイル２が積み重ねられている場合には、最上の線材コイル２の上端２ｃに当接して当該線材コイル２を覆う覆い部材５に、線材コイル２の内側となる空洞部２ｂに挿入されて送風による動圧を、覆い部材５側で低くなるようにして、空洞部２ｂ内の動圧を均一化するための突部１０が設けられているので、動圧の高い部分が覆い部材５側のみに集中するようなことがなく、線材コイル２の線材２ａ間を通過する空気量を線材コイル２全体において均等にすることができる。これにより、線材コイル２をより均一に冷却することができる。 That is, according to the cooling device 1 of the present embodiment, when the upper end 2c of the wire coil 2 and the plurality of wire coils 2 are stacked, the wire coil 2 comes into contact with the upper end 2c of the uppermost wire coil 2. In order to equalize the dynamic pressure in the cavity 2b by being inserted into the cavity 2b inside the wire coil 2 so that the dynamic pressure due to the blast is lowered on the covering member 5 side. Since the protrusion 10 is provided, the portion having high dynamic pressure does not concentrate only on the covering member 5 side, and the amount of air passing between the wire rods 2a of the wire rod coil 2 is made uniform in the entire wire rod coil 2. Can be. Thereby, the wire rod coil 2 can be cooled more uniformly.
　覆い部材５は、上方から吊り下げられた吊下天板７から垂設されたロッド８に案内されて上下方向に移動するので、例えば線材コイル２の積み上げ数が異なるなどして、覆い部材５により塞ぐ位置（高さ）が変わったとしても、吊下支持体４を吊り下げるワイヤー６が弛むことはない。 Since the covering member 5 is guided in the vertical direction by being guided by the rod 8 suspended from the hanging top plate 7 suspended from above, the covering member 5 is moved in the vertical direction, for example, because the number of stacked wire coil 2 is different. Even if the closing position (height) is changed, the wire 6 for suspending the suspension support 4 does not loosen.
　すなわち、ワイヤー６を滑車１２で配索する際に、図６に示すように、吊下天板７をワイヤー６で直接吊り下げるようにした場合、吊下天板７が線材コイル２に乗った後、ワイヤー６が弛んでしまって、不注意でワイヤー６が滑車１２から外れてしまうことがある。 That is, when the wire 6 is arranged by the pulley 12 and the hanging top plate 7 is directly suspended by the wire 6 as shown in FIG. 6, the hanging top plate 7 rides on the wire coil 2. Later, the wire 6 may loosen and inadvertently come off the pulley 12.
　本実施形態では、覆い板９が吊下天板７のロッド８に対してスライドするので、ワイヤー６の長さは、想定される線材コイル２の最も高い位置で張った状態になるように決定しておけば良い。これにより、吊下天板７を降ろしていき、覆い板９が線材コイル２の上端２ｃに乗った後も、吊下天板７は下がり続けることができ、線材コイル２の積み上げ高さがどのような場合でも、ワイヤー６は張った状態で停止するので、滑車１２から外れることがなく、吊り操作のトラブルを無くすことができる。 In the present embodiment, since the cover plate 9 slides with respect to the rod 8 of the hanging top plate 7, the length of the wire 6 is determined so as to be in a stretched state at the highest position of the assumed wire material coil 2. You should keep it. As a result, the hanging top plate 7 can be lowered, and even after the cover plate 9 rides on the upper end 2c of the wire coil 2, the hanging top plate 7 can continue to be lowered, and what is the stacking height of the wire coil 2? Even in such a case, since the wire 6 is stopped in a stretched state, it does not come off from the pulley 12, and troubles in the suspension operation can be eliminated.
　覆い部材５は、吊下天板７から垂設された複数のロッド８に案内されるので、線材コイル２に対して位置ズレすることを防止できる。 Since the covering member 5 is guided by a plurality of rods 8 suspended from the hanging top plate 7, it is possible to prevent the position of the covering member 5 from being displaced with respect to the wire rod coil 2.
　すなわち、覆い部材５は、ロッド８に対してスライドしながら吊下天板７が降下している最中でも、線材コイル２に対して位置ズレすることがない。 That is, the covering member 5 does not shift in position with respect to the wire rod coil 2 even while the hanging top plate 7 is descending while sliding with respect to the rod 8.
　覆い部材５には、線材コイル２と対向する部位にクッション材１１が設けられているので、覆い部材５によって線材コイル２が傷付くことを確実に防止することができる。 Since the cover member 5 is provided with the cushion material 11 at a portion facing the wire rod coil 2, it is possible to reliably prevent the wire rod coil 2 from being damaged by the cover member 5.
　図７には、上記実施形態の変形例が示されている。線材コイル２の上端２ｃの面は、必ずしも水平に平らな状態ではなく、傾斜している場合がある。本変形例は、このように線材コイル２の上端２ｃの面が傾斜している場合であっても、その上に覆い板９を傾けた状態で設置できて、線材コイル２の上端２ｃを好適に塞ぐことができるようにしたものである。 FIG. 7 shows a modified example of the above embodiment. The surface of the upper end 2c of the wire rod coil 2 is not necessarily horizontally flat and may be inclined. In this modification, even when the surface of the upper end 2c of the wire coil 2 is inclined in this way, it can be installed with the cover plate 9 tilted on it, and the upper end 2c of the wire coil 2 is suitable. It is designed to be able to be closed.
　まず、覆い板９の挿通孔９ｂの孔径が、ロッド８の外径よりも大きく形成される。これにより、ロッド８に対する覆い板９の傾斜が許容されて、覆い板９を、線材コイル２の上端２ｃの上に、当該上端２ｃの面の傾斜に合わせて、設置することができる。 First, the hole diameter of the insertion hole 9b of the cover plate 9 is formed to be larger than the outer diameter of the rod 8. As a result, the cover plate 9 is allowed to be tilted with respect to the rod 8, and the cover plate 9 can be installed on the upper end 2c of the wire rod coil 2 in accordance with the inclination of the surface of the upper end 2c.
　また、ロッド８のストッパー８ａの上面を、上方に向かって窄まるコーン状に形成すると共に、挿通孔９ｂ自体を下方に向かって広がるコーン状に形成したり、あるいは挿通孔９ｂの下部に、同様なコーン状の案内部材１４を取り付けるようにすることが好ましい。 Further, the upper surface of the stopper 8a of the rod 8 is formed in a cone shape that narrows upward, and the insertion hole 9b itself is formed in a cone shape that expands downward, or the same applies to the lower part of the insertion hole 9b. It is preferable to attach a cone-shaped guide member 14.
　このようにすることで、吊下支持体４が上昇していくときに、ストッパー８ａが挿通孔９ｂもしくは案内部材１４に入り込み、覆い板９を水平姿勢に戻しかつセンタリングして吊り上げることができる。 By doing so, when the suspension support 4 rises, the stopper 8a enters the insertion hole 9b or the guide member 14, and the cover plate 9 can be returned to the horizontal posture and centered and lifted.
　このような変形例であっても、上記実施形態と同様の作用効果を奏することはもちろんのこと、上述したように、線材コイル２の上端２ｃの面が傾斜していても、覆い板９を適切に設置して線材コイル２を効率よく冷却することができる。 Even in such a modified example, it is possible to obtain the same effect as that of the above embodiment, and as described above, even if the surface of the upper end 2c of the wire rod coil 2 is inclined, the cover plate 9 can be used. It can be properly installed to efficiently cool the wire coil 2.
　上記実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。本発明は、その趣旨を逸脱することなく、変更、改良され得ると共に、本発明にはその等価物が含まれることはいうまでもない。 The above embodiment is for facilitating the understanding of the present invention, and is not for limiting the interpretation of the present invention. It goes without saying that the present invention can be modified and improved without departing from the spirit thereof, and the present invention includes an equivalent thereof.
　１　線材コイルの冷却装置
　２　線材コイル
　２ａ　線材
　２ｂ　空洞部
　２ｃ　上端
　２ｄ　下端
　３　載置台
　３ａ　上面板
　３ｂ　送風孔
　４　吊下支持体
　５　覆い部材
　６　ワイヤー
　７　吊下天板
　７ａ　下面
　８　ロッド
　８ａ　ストッパー
　９　覆い板
　９ａ　下面
　９ｂ　挿通孔
　１０　突部
　１０ａ　下面
　１０ｂ　外周面
　１１　クッション材
　１２　滑車
　１３　ウインチ
　１４　案内部材
　Ｓ　空隙 1 Wire coil cooling device 2 Wire coil 2a Wire 2b Cavity 2c Top 2d Bottom 3 Mounting stand 3a Top plate 3b Blower hole 4 Suspended support 5 Covering member 6 Wire 7 Suspended top plate 7a Bottom 8 Rod 8a Stopper 9 Plate 9a Bottom surface 9b Insertion hole 10 Protrusion 10a Bottom surface 10b Outer peripheral surface 11 Cushion material 12 Pulley 13 winch 14 Guide member S gap

Claims (4)

  1. 　線材コイルの貫通方向における一方側に当接して、該線材コイルを覆う覆い部材と、上記線材コイルの貫通方向における他方側に設けられ、該線材コイルの内側に上記覆い部材側に向かって空気を吹き出す送風孔とを有し、
    　上記覆い部材は、上記線材コイルの内側に挿入される突部を備え、
    　上記線材コイルと上記突部の外周面との間には、空隙が設けられると共に、
    　さらに、上記覆い部材が設けられる吊下支持体を有し、該吊下支持体は、上方から吊り下げられる吊下支持部と、該吊下支持部から垂設され、上記線材コイルに当接される上記覆い部材の上下方向の移動を案内するガイド部とを備えることを特徴とする線材コイルの冷却装置。     A covering member that abuts on one side of the wire rod coil in the penetrating direction and covers the wire rod coil, and an air provided on the other side of the wire rod coil in the penetrating direction toward the covering member side inside the wire rod coil. It has a ventilation hole to blow out,
    The covering member comprises a protrusion inserted inside the wire coil.
    A gap is provided between the wire coil and the outer peripheral surface of the protrusion, and a gap is provided.
    Further, it has a suspension support provided with the covering member, and the suspension support is suspended from the suspension support portion suspended from above and the suspension support portion, and is in contact with the wire rod coil. A wire coil cooling device comprising a guide portion for guiding the vertical movement of the covering member.
  2. 　前記吊下支持部は、上方に配置される滑車を介して、吊り下げ部材で吊り下げられていることを特徴とする請求項１に記載の線材コイルの冷却装置。 The wire coil cooling device according to claim 1, wherein the suspension support portion is suspended by a suspension member via a pulley arranged above.
  3. 　前記覆い部材には、前記線材コイルと対向する部位に、クッション材が設けられることを特徴とする請求項１または２に記載の線材コイルの冷却装置。 The cooling device for a wire coil according to claim 1 or 2, wherein the covering member is provided with a cushion material at a portion facing the wire coil.
  4. 　前記クッション材は、銅製の金網であることを特徴とする請求項３に記載の線材コイルの冷却装置。 The wire coil cooling device according to claim 3, wherein the cushion material is a copper wire mesh.
PCT/JP2021/009573 2020-05-15 2021-03-10 Wire coil cooling device WO2021229906A1 (en)

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JP6977796B2 (en) * 2017-10-20 2021-12-08 株式会社三洋物産 Pachinko machine
JP6977472B2 (en) * 2017-10-20 2021-12-08 株式会社三洋物産 Pachinko machine
JP6887552B1 (en) * 2020-09-03 2021-06-16 中外炉工業株式会社 Wire coil cooling device

Citations (5)

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JPS4820708A (en) * 1971-07-22 1973-03-15
JPS4839685B1 (en) * 1969-08-05 1973-11-26
JPS5331007U (en) * 1976-08-23 1978-03-17
JPH0417627A (en) * 1990-05-11 1992-01-22 Daido Steel Co Ltd Coil cooler
JP2005118806A (en) * 2003-10-15 2005-05-12 Sumitomo Metal Ind Ltd System for cooling wire rod coil

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3785631B2 (en) * 1998-01-26 2006-06-14 大同特殊鋼株式会社 Melting furnace lid lifting device
JP4909304B2 (en) * 2008-03-14 2012-04-04 三菱重工業株式会社 Compressive residual stress applying device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4839685B1 (en) * 1969-08-05 1973-11-26
JPS4820708A (en) * 1971-07-22 1973-03-15
JPS5331007U (en) * 1976-08-23 1978-03-17
JPH0417627A (en) * 1990-05-11 1992-01-22 Daido Steel Co Ltd Coil cooler
JP2005118806A (en) * 2003-10-15 2005-05-12 Sumitomo Metal Ind Ltd System for cooling wire rod coil

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