WO2022049933A1

WO2022049933A1 - Wire rod coil cooling device

Info

Publication number: WO2022049933A1
Application number: PCT/JP2021/027879
Authority: WO
Inventors: 邦寛北橋
Original assignee: 中外炉工業株式会社
Priority date: 2020-09-03
Filing date: 2021-07-28
Publication date: 2022-03-10
Also published as: JP2022042741A; TW202212579A; JP6887552B1

Abstract

In order to make a wire, which suspends a cover member for covering the upper end of wire rod coils from above the wire rod coils via a pulley, less likely to separate from the pulley irrespective of the number of wire rod coils being stacked, provided is a wire rod coil cooling device (1) comprising a cover member (9) for covering wire rod coils (2) by coming in contact with the upper end (2c) in a penetration direction of the wire rod coils, an air-blow hole (10a) which is disposed on the bottom side in the penetration direction of the wire rod coils and from which air is blown into the wire rod coils toward the cover member, and a suspended support (8) suspended by a wire (11) from above the wire rod coils via a pulley (14) and capable of supporting the cover member, wherein the suspended support has rods (13) serving as guide parts for guiding the cover member in a vertically movable manner, and the wire rod coils are conveyed on multiple rollers (4b) arranged at intervals from each other in a predetermined direction.

Description

Wire coil cooling device

In the present invention, the wire that suspends the covering member for covering the upper end of the wire coil from above the wire coil via the pulley cools the wire coil that is hard to come off from the pulley regardless of the number of stacked wire coils. Regarding the device.

Conventionally, Patent Documents 1 to 5 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.

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.

In Patent Document 3, "a method for annealing a steel sheet coil and an annealing facility" is a method for annealing a steel sheet coil in which a steel sheet wound into a coil is placed on a coil stand with an up-end and stored in an inner cover to be annealed. In, the steel sheet coil is heated, soothed, and then cooled, the cooling gas is blown toward the inner peripheral surface of the steel sheet coil.

In Patent Document 4, "annealing method and annealing furnace of metal band coil", when a metal band coil in which a metal band is wound in a coil shape is covered with an inner cover and the metal band coil is annealed by radiant heat from the inner cover, the metal band coil is annealed. At least in the first half of the heat treatment of the annealing, the radiant heat to the inner peripheral surface of the metal band coil is cut off, while the cutoff is released during the cooling treatment.

The "coil cooling device" of Patent Document 5 circulates a cooling chamber internally provided with a storage place for storing a coil of a wire rod, a cooler for cooling the atmospheric gas, and the cooled atmospheric gas to the storage place. In the coil cooling device provided with the circulation means for causing the circulation, the outlet of the atmospheric gas in the circulation means is located on one side of the storage place, and the air outlet of the atmospheric gas in the circulation means is located on the other side. A closing plate for closing the end of the coil is provided so as to be flexible with respect to the outlet.

Japanese Unexamined Patent Publication No. 3-98863 Japanese Unexamined Patent Publication No. 7-300624 Japanese Unexamined Patent Publication No. 2013-163852 Japanese Unexamined Patent Publication No. 2013-181210 Japanese Unexamined Patent Publication No. 4-17627

Patent Document 5 exemplifies a configuration in which the upper end of a hollow portion of a wire rod coil is closed with a closing plate and air is blown from the lower end side of the hollow portion to cool the coil.

The closing plate is connected to the elevating device via a pulley by a wire, and is suspended from above the coil so that it can move up and down.

When cooling the coils, one coil may be cooled independently, or multiple coils may be stacked so that the cavities communicate with each other in the vertical direction and cooled at the same time.

The position of the closing plate that closes the upper end of the coil differs depending on the height of the stacked coils. For this reason, the wire that suspends the closing plate from above must have a length that allows the closing plate to be placed on the upper end of at least one coil arranged independently.

However, when a closing plate suspended by a wire having a length that allows the closing plate to be placed on the upper end of a coil arranged independently is placed on the upper end of a plurality of stacked coils, the tension of the wire is loosened. There was a problem that the wire might come off from the pulley on which it was wound.

The present invention has been devised in view of the above-mentioned conventional problems, and a wire coil in which a wire for suspending a covering member for covering the upper end of the wire coil from above the wire coil via a pulley is stacked. It is an object of the present invention to provide a cooling device for a wire coil which is hard to come off from a pulley regardless of the number of the wires.

The wire coil cooling device according to the present invention abuts on the upper end of the wire coil in the penetrating direction and is arranged on the covering member covering the wire coil and the lower end side of the wire coil in the penetrating direction. The suspension support is provided with a blower hole for blowing air toward the cover member side and a suspension support that is suspended from above the wire rod coil by a wire via a slide and can support the cover member. The body has a guide portion that guides the covering member so as to be movable in the vertical direction, and the wire coil is conveyed on a plurality of rollers arranged in a predetermined direction at intervals from each other. ..

The wire rod coil is placed on a tray and conveyed on the roller, and the tray is provided with an opening through which air blown from the blower hole flows.

It is characterized in that a closing plate is provided between the plurality of rollers.

In the wire coil cooling device according to the present invention, the wire suspending the covering member for covering the upper end of the wire coil from above the wire coil via the pulley is not limited to the number of stacked wire coils. It is possible to prevent the pulley from coming off the pulley.

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. FIG. 3 is a vertical cross-sectional view showing a state of the wire rod coil cooling device shown in FIG. 1 before the covering member is mounted on the wire rod coil. It is a top view which shows the transport device provided in the cooling device of the wire rod coil shown in FIG. It is a perspective view which shows the tray used for the cooling device of the wire rod coil shown in FIG. It is a vertical cross-sectional view which shows the state which the wire material coil was piled up and installed higher than FIG. It is explanatory drawing explaining the problem in the case of operating by hanging a hanging frame directly with a wire. It is a vertical sectional view which shows the modification of the cooling device of the wire rod coil which concerns on this invention. It is a vertical sectional view of the main part which shows the other modification of the cooling device of the wire rod coil which concerns on this invention.

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.

The inside of the wire coil 2 formed in a cylindrical shape is a hollow portion 2b in the penetrating direction (axial direction).

As shown in FIGS. 1 to 3, the cooling device 1 includes a transport device 4 that transports the wire coil 2 mounted on the tray 3 in a predetermined direction, and a pair of partition walls 5 that face each other across the transport device 4. (See FIG. 3), a door opening / closing mechanism 7 that forms a cooling chamber 6 together with a pair of partition walls 5, a suspended support 8 suspended above the cooling chamber 6, and a suspension support 8 that moves in the vertical direction. It is provided with a cover member 9 that can be provided, and a blower hole 10a arranged in a blower pipe 10 provided below the cooling chamber 6 on the lower end side in the penetrating direction of the wire rod coil 2. The covering member 9 is guided to move in the vertical direction by the suspension support 8.

The transfer device 4 is a pair of frames 4a provided at intervals along the direction in which the wire rod coil 2 is conveyed (hereinafter referred to as the transfer direction) and facing the direction orthogonal to the transfer direction (hereinafter referred to as the orthogonal direction). It has a plurality of rollers 4b bridged between the pair of frames 4a, and a closing plate 4c provided between the rollers 4b.

The plurality of rollers 4b are arranged at equal intervals at intervals in the transport direction, and are rotatably provided on each of the pair of frames 4a. The partition walls 5 are provided along each of the pair of frames 4a and face each other in the orthogonal direction.

The door opening / closing mechanism 7 is provided on the transport device 4 so as to be able to move up and down, and is provided on a pair of

doors

7a and 7b provided at intervals in the transport direction and a partition wall 5 to guide the

doors

7a and 7b. It has a door guide 7c and an elevating device (not shown) that can raise and lower each

door

7a and 7b individually.

Each of the

doors

7a and 7b has a planar shape along the orthogonal direction and is provided so as to face each other in the transport direction. The pair of

doors

7a and 7b are spaced so that a plurality of (four in this embodiment) rollers 4b are arranged between them, and each of the

doors

7a and 7b has a closing plate 4c. Arranged to move up and down on top.

The door guides 7c for guiding the

doors

7a and 7b are provided along the vertically facing surfaces of the pair of partition walls 5 so as to face each other, and the sides facing each other have an open groove. Both ends of the

doors

7a and 7b in the orthogonal direction are inserted into the grooves of the door guide 7c, and the

doors

7a and 7b are guided in the vertical direction by the door guide 7c.

With the

doors

7a and 7b lowered, the area partitioned by the pair of partition walls 5 and the pair of

doors

7a and 7b on the transport device 4 becomes the cooling chamber 6.

Below the cooling chamber 6, a blower hole 10a having a hole diameter smaller than the inner diameter of the cavity 2b of the wire rod coil 2 is arranged so as to be located in the center in the transport direction. The blower hole 10a is located substantially in the center of the cooling chamber 6, and is provided between the rollers 4b adjacent to each other at a position lower than the height position of the top of the rollers 4b. Air supplied from a blower (not shown) is blown upward from the blower hole 10a.

The closing plate 4c provided between the rollers 4b is provided between the rollers 4b so as to close at least the area under the cooling chamber 6 among the plurality of rollers 4b. At this time, the closing plate 4c is not provided above the blower hole 10a located in the center of the cooling chamber 6. The closing plate 4c is arranged so that the upper surface is lower than the height position of the top of the roller 4b.

As shown in FIG. 4, the tray 3 on which the wire material coil 2 is placed is formed of a rectangular plate-shaped material, and in the center of the tray 3, it is smaller than the inner diameter of the cavity 2b of the wire material coil 2 to be placed. , An opening 3a larger than the inner diameter of the blower hole 10a is provided. As shown in FIG. 3, the tray 3 conveyed to the cooling chamber 6 is arranged so that the blower hole 10a is located inside the opening 3a when viewed from above. Air from the blower hole 10a is circulated through the opening 3a.

When the closing plate 4c is used, the tray 3 is formed in, for example, a lightweight grid shape. The closing plate 4c may be omitted, and in that case, the tray 3 is formed of a plate material having only the opening 3a, as in the modified example shown in FIG. All of such configurations are for ensuring that the air from the blower hole 10a is supplied to the wire rod coil 2 without waste. If there is a closing plate 4c, the tray 3 may not be used.

The suspension support 8 includes a suspension frame 12 suspended from above by a wire 11 and a plurality of rods 13 as guide portions suspended from the lower surface 12a of the suspension frame 12.

The hanging frame 12 is suspended by a wire 11 via a pulley 14 arranged above. The wire 11 is turned around by the pulley 14 and is wound up and unwound by the winch 15 provided on the side.

The hanging frame 12 is formed in a planar rectangular shape, for example, and is suspended so as to face the tray 3 arranged in the cooling chamber 6 at intervals in the vertical direction.

The rod 13 has a columnar shape and is vertically hung at each of the four corners of the hanging frame 12. The rod 13 is slidably inserted into the covering member 9, whereby the covering member 9 is guided (guided) by the rod 13 and can move in the vertical direction.

At the lower end of the rod 13, a stopper 13a for restricting the downward movement (pulling out) of the covering member 9 is provided.

The covering member 9 includes a covering plate 9a formed in a plane rectangular shape substantially the same as the hanging frame 12, and a cushion material 9b provided on the lower surface of the covering plate 9a.

Insertion holes 9c through which the rod 13 of the suspension support 8 is inserted are provided at the four corners of the cover plate 9a.

The cushion material 9b is formed by stacking, for example, a plurality of copper net materials. The cushion material 9b 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 9a when the air is blown.

As shown in FIG. 2, in the cooling device 1 before the wire coil 2 is conveyed into the cooling chamber 6, the suspension support 8 is pulled up and positioned (pulled up position), and the covering member 9 is provided. Is located on the lower end side of the rod 13 due to its own weight and is in contact with the stopper 13a.

In the state where the suspension support 8 is in the pulling position, the covering member 9 in contact with the stopper 13a is suspended at a position higher than the maximum height of the wire coil 2 that can be stacked in the cooling chamber 6.

The suspended support 8 can descend to a preset descent position. The descending position is a position where the lower surface of the stopper 13a is higher than the upper surface of the tray 3 mounted on the transport device 4 and does not come into contact with the tray 3 when the suspension support 8 is descended.

The lower surface of the covering member 9 that is in contact with the stopper 13a of the suspension support 8 that has descended to the descending position in a state where the wire coil 2 is not placed on the tray 3 is, for example, the lowest height wire coil. 2 is arranged at a position lower than the height of the upper end when the 2 is placed on the tray 3.

Next, the operation of the cooling device 1 according to the present embodiment will be described. When cooling the wire coil 2 by the cooling device 1, first, the suspension support 8 is placed in the pulling position, and at least the entrance door 7a on the upstream side in the transport direction is pulled up and placed on the tray 3. The wire coil 2 is moved to the position of the cooling chamber 6 by the transport device 4.

After moving the wire coil 2 to the position of the cooling chamber 6, lower the pair of

doors

7a and 7b as shown in FIG.

As a result, the cooling chamber 6 is formed, and the wire coil 2 is placed on the tray 3 in the cooling chamber 6. At this time, the wire coil 2 is arranged on the tray 3 so as to surround the opening 3a, and the moved tray 3 is arranged at a position facing the covering member 9 located above. In this state, the opening 3a of the tray 3 is located above the ventilation hole 10a.

Next, lower the suspension support 8 to the lowering position. At this time, the hanging support 8 is lowered from above the wire coil 2 on the tray 3, and the covering member 9 is placed on the upper end 2c of the wire coil 2 before the hanging support 8 is lowered to the lowered position. Will be done. As a result, the cushion material 9b comes into contact with 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 9. That is, the covering member 9 abuts on the upper end 2c of the wire rod coil 2 in the penetrating direction and covers the wire rod coil 2.

Then, by further lowering the hanging support 8, as shown in FIG. 1, the covering member 9 is separated from the stopper 13a and the hanging support 8 is lowered to the lowering position.

When cooling a plurality of wire rod coils 2, as shown in FIG. 5, the positions of the wire rod coils 2 are aligned and the cavities 2b are stacked on the tray 3 so as to be continuous.

The stacking height (stacking number) of the wire coil 2 stacked on the tray 3 differs each time. Even when the upper end 2c of the plurality of stacked wire coil 2 is covered with the covering member 9, the suspended support 8 that has been pulled up is lowered. After the covering member 9 is placed on the upper end 2c of the wire rod coil 2, the hanging support 8 is further lowered while the rod 13 slides with respect to the covering member 9, and the hanging support is supported at the set lowering position each time. The hanging frame 12 of the body 8 is stopped.

With the wire coil 2 arranged in the cooling chamber 6 and the covering member 9 placed on the wire coil 2, air is blown out from the blower hole 10a toward the covering member 9.

At this time, the weight of the covering member 9 is set so that the covering member 9 does not rise due to the wind pressure.

The air blown from the blower hole 10a toward the covering member 9 side flows toward the covering member 9 side through the cavity 2b as shown by an arrow in the figure. That is, the blown air is blown toward the covering member 9 side into the cavity 2b of the wire coil 2 placed on the tray 3, and flows from the cavity 2b between the wires 2a of the wire coil 2. The wire coil 2 flows out to the outer peripheral side, and the air flow cools the wire coil 2.

At this time, a gap C for discharging air upward is provided between the partition wall 5 and the

doors

7a and 7b and the covering member 9.

After cooling, the exit door 7b on the downstream side in the transport direction is pulled up, and the wire coil 2 is carried out from the cooling chamber 6 together with the tray 3 by the transport device 4.

That is, according to the cooling device 1 of the present embodiment, the covering member 9 that abuts on the upper end 2c of the wire rod coil 2 in the penetrating direction and covers the wire rod coil 2 is suspended by the wire 11 from above the wire rod coil 2. Since the suspension support 8 can be guided in the vertical direction by being guided by the rod 13, the suspension support 8 can be suspended in the wire 11 and can move in the vertical direction while the suspension support 8 is stopped.

Therefore, even if the position (height) to be closed by the covering member 9 changes due to, for example, the number of stacked wire coil 2 being different, the wire 11 for suspending the suspension support 8 does not loosen.

That is, when the wire 11 is arranged by the pulley 14, when the suspension frame 12 is directly suspended by the wire 11 as a covering member as shown in FIG. 6, the suspension frame 12 is mounted on the wire coil 2. After that, the wire 11 may be loosened and the wire 11 may be inadvertently detached from the pulley 14.

In the cooling device 1 of the present embodiment, since the covering member 9 slides with respect to the rod 13 of the hanging frame 12, the length of the wire 11 is in a stretched state at the highest position of the assumed wire coil 2. You just have to decide.

As a result, even after the hanging frame 12 is lowered and the covering member 9 is placed on the upper end 2c of the wire coil 2, the hanging frame 12 of the hanging support 8 can continue to be lowered, and the wire coils 2 are stacked. Regardless of the height, the wire 11 can be stopped in a stretched state, the wire 11 does not come off from the pulley 14, and troubles in the suspension operation can be eliminated.

Therefore, it is possible to prevent the wire 11 that suspends the closing member 9 that closes the upper end 2c of the wire coil 2 from above via the pulley 14 from coming off the pulley 14 regardless of the number of stacked wire coils 2. can.

Since the wire coil 2 is placed on the tray 3 and transported on a plurality of rollers 4b arranged in the transport direction at intervals from each other, the posture of the wire coil 2 with the penetration direction facing up and down can be determined. It can be easily transported while being maintained.

Since the closing plate 4c is provided between the rollers 4b that convey the wire coil 2, it is possible to prevent the air blown toward the cavity 2b from leaking to the lower side of the rollers 4b, and the air is wasted. It can be sent to the wire coil 2 side without any problem. Therefore, it can be cooled efficiently.

Since the tray 3 is provided with an opening 3a through which air blown from the blower hole 10a flows, the cavity portion 2b of the wire rod coil 2 can be arranged by aligning the cavity portion 2b of the wire rod coil 2 with the opening hole 3a. Air can be reliably sent into the air to cool it efficiently.

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, the covering member 9 can be installed in a state of being tilted on the surface, and the upper end 2c of the wire coil 2 is suitable. It is designed to be able to be closed.

First, the hole diameter of the insertion hole 9c of the covering member 9 is formed to be larger than the outer diameter of the rod 13. As a result, the covering plate 9a is allowed to be tilted with respect to the rod 13, and the covering plate 9a 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.

Further, the upper surface of the stopper 13a of the rod 13 is formed in a cone shape that narrows upward, and the insertion hole 9c itself is formed in a cone shape that expands downward, or the same applies to the lower portion of the insertion hole 9c. It is preferable to attach a cone-shaped guide member 16.

By doing so, when the hanging support 8 rises, the stopper 13a enters the insertion hole 9c or the guide member 16, and the covering member 9 can be returned to the horizontal posture and centered and lifted.

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 covering member 9 can be provided. It can be properly installed to efficiently cool the wire coil 2.

In the present embodiment, the upper part is open to the atmosphere in order to discharge the hot air after cooling, but as in Cited Document 5, a ceiling is also provided to surround the whole, and the

doors

7a and 7b are opened and closed to insert and remove the wire coil 2. However, hot air may be cooled by a circulation path, or a discharge port may be provided on the ceiling.

Further, the partition wall 5 and the

doors

7a and 7b do not have to be provided as in the modified example of FIG. However, if they are present, the hot air ejected from the periphery of the wire rod coil 2 during cooling does not hit the surrounding objects or people, so that the operation can be performed safely.

If the tray 3 is formed in a grid shape, the weight can be reduced and the required driving force of the transport device 4 can be reduced.

In the above embodiment, the cover member 9 has been described with an example in which the cushion material 9b is provided on the lower surface of the cover plate 9a, but the cover member 9 does not necessarily have to be provided with the cushion material 9b.

In the above embodiment, an example in which the tray 3 is formed by a lattice shape has been described, but the present invention is not limited to this, and for example, a plate having an opening 3a in the center may be used.

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 Wire coil cooling device 2 Wire coil 2a Wire 2b Cavity 2c Upper end of wire coil 3 Tray 3a Tray opening 4 Conveyor 4a Frame 4b Roller 4c Closing plate 5 Partition 6 Cooling chamber 7 Door opening / closing mechanism 7a Upstream side in transport direction Entrance side door 7b Outlet side door on the downstream side in the transport direction 7c Door guide 8 Suspended support 9 Covering member

9a Cover plate

9b Cushion material 9c Insertion hole 10 Blower pipe 10a Blower hole 11 Wire 12 Suspended frame 12a Suspended frame Bottom surface 13 Rod 13a Stopper 14 Pulley 15 Winch 16 Guide member C Gap

Claims

A covering member that abuts on the upper end of the wire coil in the penetrating direction and covers the wire coil,
A blower hole, which is arranged on the lower end side in the penetrating direction of the wire rod coil and blows air toward the covering member side inside the wire rod coil,
It is provided with a hanging support that is suspended by a wire from above the wire coil via a pulley and can support the covering member.
The suspended support has a guide portion that guides the covering member in the vertical direction so as to be movable.
The wire rod coil is a cooling device for a wire rod coil, characterized in that it is conveyed on a plurality of rollers arranged in a predetermined direction at intervals from each other.
The first aspect of the present invention is characterized in that the wire coil is placed on a tray and conveyed on the rollers, and the tray is provided with an opening through which air blown from the air blower hole flows. Wire coil cooling device.
The wire coil cooling device according to claim 1 or 2, wherein a closing plate is provided between the plurality of rollers.