JP3390627B2 - Spool handling device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spool handling device for taking out and supplying a spool in a rolling mill for rolling metal foil such as aluminum foil.

[0002]

2. Description of the Related Art Conventionally, in an aluminum foil rolling machine, a rewinding reel is arranged on the inlet side and a take-up reel is arranged on the outlet side along the running line of the metal foil with the body of the rolling mill interposed therebetween. The thick aluminum that has been wound around is unwound from the spool on the inlet side and enters the rolling mill, becoming thin aluminum and exiting the rolling mill.
It is taken up on a spool on the exit side. Therefore, each aluminum foil rolling machine is provided with a spool handling device that takes out an empty spool from which thick aluminum has been peeled off by a rewind reel and supplies the spool to the take-up reel.

As such a spool handling device, for example, a high-speed aluminum foil rolling machine manufactured by Mitsubishi Aluminum Co., Ltd. (see IHI Technical Report Vol. 23, No. 4) is an inlet side spool lifter that moves up and down by a cylinder or the like. The spool is received from the rewind reel (unwinder) and is inclined 90 degrees to the exit side. The entrance side roller conveyor, the slope rail type spool ramp, and the entrance side roller conveyor with the sloped exit. Transfer to the output side spool lifter via the side roller conveyor. The output spool lifter rises to supply the spool to the take-up reel (rewinder). The entry-side roller conveyor, spool ramp, and exit-side roller conveyor are located underground on the working side (the side on which the roll reassembling device, etc. is installed, as opposed to the drive side on which the device that drives the rolling mill rolls is installed). It is arranged. On the other hand, when the spool is not transferred from the rewind reel to the take-up reel via each conveyor as described above, the spool carry-out device and the spool supply device are provided on the ground on the entry side or the working side of the rolling mill. In this case, the spool is taken out from the spool carry-out device, and another spool is supplied from the spool supply device onto the entrance roller conveyor. Supplied spools are spool lamps underground,
It is conveyed to the output side roller conveyor and attached to the take-up reel from the output side spool lifter. In the spool carry-out device and the spool supply device, the carry-out of the spool to the ground and the supply of the spool from the ground are performed by an arm rotation type spool charger with a spool clamp.

In addition to this, in the strip tip processing device described in Japanese Utility Model Laid-Open No. Sho 60-115624, a spool lifter that moves up and down diagonally removes the spool from the rewind reel (uncoiler) to the lower part of the inlet side and installs the swing drum. Move the coil car toward the spool, push the drum into the inner diameter of the spool, and transfer it to the drive side of the rolling mill.
With a rotating table that rotates by 90 degrees, the spool is rotated 90 degrees, and the table on the fixed side (roller conveyor), which is arranged between the drive unit and the rolling mill, is pushed with a pusher from the inlet side to the outlet side. It is configured such that the spool is transferred, the spool is rotated 90 degrees again on the rotary table, is received by the drum of the coil car, is transferred to the spool lifter, and is supplied to the take-up reel by the spool lifter. With this device, if the spool has trailing scraps, the scraps are removed before transfer to the rotary table.

[0005]

In the above-mentioned aluminum foil rolling machine, a roller conveyor is used as an underground transfer means. Even in the strip leading edge processing apparatus, a roller conveyor is used for transporting from the input side to the output side. However, transfer by roller conveyor is
Since it depends on gravity and frictional force, it lacks certainty and may stop in the middle of transfer, and if it stops, it is necessary for people to go underground to work, which is very troublesome and time consuming. In particular, when the trailing end scraps are left unwound on the spool to move on the roller conveyor, there is a high possibility of stopping on the roller conveyor.

Further, in the aluminum foil rolling machine, since the roller conveyor is installed under the rewinding reel and the take-up reel, the foundation of important equipment is weakened, the vibration of the equipment is increased, and product defects occur. There is a problem that it is easy.

Further, in the strip leading end processing apparatus, the swing drum is thrust into the inner diameter of the spool for gripping and transporting. However, the swing drum is long and it takes a long time to transfer the thrust drum, and it takes a long time to handle. There is a problem.

The present invention has been made in view of the above problems, and an object of the present invention is to reliably transfer a spool, to solidify the foundation of important equipment, to reduce vibration, and to handle a spool. It is an object of the present invention to provide a spool handling device having a short time.

[0009]

According to a first aspect of the present invention, a spool is taken out from a rewinding reel and a take-up reel provided on an inlet side and an outlet side of a rolling mill along a line along which a metal foil is fed. A spool handling device for supplying, (a) an inlet side and an outlet side spool lifter provided below the rewinding reel and the take-up reel for mounting and elevating a spool, and (b) the spool lifter. An inlet side and an outlet side upper coil car that has an arm for sending and receiving a spool to and from which the line can move forward and backward in a direction parallel to and below the line; and (c) a working side of the rolling mill of the upper coil car. An entrance side and an exit side lower coil car on which the upper coil car is placed and traveling in a direction orthogonal to the advancing / retreating direction, and (d) a work side of the rolling mill, which is provided from the entrance side upper coil car. Be provided with a spool conveyor for to transfer conveying the mounting spools to egress upper coil car characterized. Unlike the roller conveyor, the upper coil car and the lower coil car have no relation to the frictional force, and the spools are placed one by one and transported.
Since it has 100% certainty and is only loaded, the delivery between the upper coil car and the spool lifter is performed quickly, and the time required for handling can be minimized. Only the spool lifter is installed under the rewinding / winding reel, and the underpass is installed so that the lower coil car moves at a position away from the rolling mill.The upper coil car moves between the spool lifter and the lower coil car. Is configured to. Therefore, unlike the conventional case, a roller conveyer or the like is not provided below the rewinding / winding reel, and the foundation of the rewinding / winding reel can be made firm.

According to a second aspect of the invention, in addition to the invention of the first aspect, an underground passage on which the lower coil car runs and an underground passage on which the spool conveyor is installed are provided underground on the working side of the rolling mill. It is connected and provided. Since the underpass is provided on the working side without providing the underpass on the drive side, the foundation on the drive side can be made solid.

According to a third aspect of the present invention, in addition to the first or second aspect of the invention, the spool lifter supports a central portion of the spool, and the upper coil car is mounted on the spool lifter. The spool has a U-shape having two arms configured to support both ends of the spool and to allow the spool lifter to pass through between the two ends. It is easy to transfer the spool from the spool lifter to the upper coil car, or from the upper coil car to the spool lifter, and the device is simple.

According to a fourth aspect of the present invention, in addition to the invention according to the first, second or third aspect, drive means for moving the upper coil car forward and backward is provided outside the upper coil car, and the tip of the driving means is connected. The portion and the connecting portion of the upper coil car are provided with concavities and convexities in such a direction that they can contact and separate in the transfer direction by the lower coil car, but cannot contact and separate in the advancing and retracting direction of the upper coil car. Since the upper coil car itself does not have a built-in driving means, it becomes a compact coil car and can be installed in a narrow space. In addition, by the lower coil car, it is only brought to a predetermined position,
It is joined to the driving means. After the joining, the driving means moves back and forth in a direction orthogonal to the moving direction of the lower coil car.

The invention according to claim 5 relates to claims 1, 2 and
In addition to the invention described in 3 or 4, the spool conveyor includes a fixed beam and a movable beam capable of swinging and descending with respect to the fixed beam, and is configured to transfer the spool to the exit side by one pitch. It will be. In a walking beam type conveyor consisting of a fixed beam and a movable beam, spools are placed on stoppers provided on the upper surface of each beam at equal pitches, and are transferred one pitch at a time to the exit side. Unlike the conveyor, it has no relation to the frictional force, so the spool can be moved 100% surely without stopping.

The invention according to claim 6 relates to claim 1,
In addition to the invention described in 3, 4, or 5, there is provided a spool supply device capable of supplying another spool from the working side ground while moving an empty spool from the rewind reel to the take-up reel. It is something that is done. The spool supply device can supply the shortage of spools from the ground.

The invention according to claim 7 relates to claims 1, 2 and
In addition to the invention described in 3, 4, 5 or 6, there is provided a spool take-out device capable of taking out the spool onto the work side ground while moving the empty spool from the rewind reel to the take-up reel. It will be. The spool take-out device makes it possible to take out the spool with the trailing scraps left unwound onto the ground.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. 1 and 2 are layout diagrams of the ground surface and the underground of one embodiment of the spool handling device of the present invention, and FIGS. 3 to 5 are A- in FIG. 1 and FIG.
Sectional views of A, BB, and CC, FIGS. 6 and 7 are configuration diagrams and operation diagrams of the upper and lower coil cars and the spool lifter, and FIGS. 8 and 9 are configuration diagrams and operation diagrams of the spool conveyor. Is.

In FIG. 1, a metal foil 2 such as an aluminum foil wound around a spool 1 is inserted into a rolling mill 4 while being unwound by a rewind reel 3 on the inlet side, rolled, and discharged from the outlet side. And is wound by the take-up reel 5. A route along which the metal foil 2 is sent is called a line. The side on which the drive device for driving the rolls of the rolling mill 4 is provided across the line is called the drive side, and the opposite side is called the working side.

In FIG. 1, while the metal foil 2 is sent along the line, the spool 1 is taken out and supplied to the rewind reel 3 and the take-up reel 5 via the underground on the working side. There is. That is, as shown in FIG. 2, the spool 1 emptied by the rewind reel 3 is lowered to the underground by the spool lifter 6 on the entry side, and the waiting upper coil car 7 is waited for.
Thus, it moves under the line in a direction away from the rolling mill, is moved onto the lower coil car 8 waiting at the station a, moves in a direction orthogonal to the line, and stops at the station b. At the station b, the upper coil car 7 is joined to the driving means 27, advances to the station c, passes the spool lifter 15 and transfers the spool 1 to the spool conveyor 9
Reprinted to. On the contrary, at station d, the spool 1 is transferred to the upper coil car 10 on the outgoing side, and is mounted on the lower coil car 11 on the outgoing side waiting at station e, moved to the station f, and mounted on the spool lifter 12 on the outgoing side. It is placed, raised to the ground, and supplied to the take-up reel 5.

Further, in FIG. 1, in addition to the spool transfer line extending from the rewinding reel 3 to the take-up reel 5, another spool 30 for supplying another spool 30 to this transfer line, and a rear side of this transfer line. A spool take-out device 14 for taking out the spool 40 with remaining scraps is provided on the ground surface. At stations c and h, spool lifters 15 and 16 are used to transfer the spool between the ground surface and the underground. There is.

The spool lifters 6, 12, 15, 16 are
It is a cylinder driven by hydraulic pressure or pneumatic pressure.
As shown in FIG. 5 to FIG. 5, the main body is provided in the ground. Further, as shown in FIG. 6, at the tip of the rod,
A support base 20 for supporting the center of the body of the spool 1 is provided. The support base 20 has stoppers 22 and 2 each having a triangular or arcuate concave upper surface at both ends of a horizontal bar 21.
3 is provided and the spool 1 is securely placed, and as shown in FIG. 7, the spool 1 is received from the upper coil car 7 and is raised toward the ground, or
The spool 1 received on the ground is lowered and passed to the upper coil car 7.

As shown in FIG. 6, the upper coil car 7 has two arms 7b and 7c horizontally extending from both ends of the main body 7a.
The arms 7b and 7c are wider than the width of the support base 20 of the spool lifter, so that the spool can be handed over while the support base 20 passes through. You can do it. Arm 7b,
A triangular or arcuate concave portion is formed on the upper surface of 7c to securely support the vicinity of both ends of the spool 1. Four wheels 24 are provided below the upper coil car 7, and the upper coil car 7 is movable in the extending direction of the arms 7b and 7c. A hook-type convex connecting portion 25 is provided on the back surface of the main body 7a, and the tip end 25a is bent downward. The other concave joint portion 26 is provided at the tip of the rod of the cylinder 27 provided for each station S, and the tip 25a is inserted into the recess 26a by moving from the direction of the arrow 28 (FIG. 6). (B)). In this state, when the cylinder 27 is driven to advance the rod, the upper coil car 7 can move on the rail 17 toward the support base 20 of the spool lifter and can also retract. In this way, the upper coil cars 7 and 10 have no built-in drive device, and
It can easily come into contact with and separate from a driving means such as a cylinder provided outside, has a simple shape, and is small in size, so that it can be moved in and out of a narrow place.

In FIG. 6, the upper coil car 7,
The stations S provided with the cylinders 27 and the rails 17 that are the driving means of 10 are the stations a, b, g, e and f in FIG. The cylinder 27 and the rail 17 are arranged so as to move the upper coil cars 7 and 10 to a position away from the rolling mill 4 below the line, and the upstream side (below the spool supply device) and the downstream side of the pool conveyor 9, It is arranged below the spool take-out device 14 so as to move parallel to the line.

Further, in FIG. 7, the spool 1 is transferred from the upper coil car 7 to the support base 20 of the spool lifter so that the spool 1 comes directly above the support coil 20 on the upper coil car 7 on which the spool 1 is placed. And the support base 20 is raised. On the contrary, the upper coil car 7 is moved so that the arms 7b and 7c are located directly below the spool 1 which is raised by the support 20, and the support 20 is lowered to place the spool on the arms 7b and 7c. The support table 20 is further lowered so as not to hinder the movement of the upper coil car 7, and then the upper coil car 7 is moved. The same applies to the upper coil car 10 on the exit side.

The lower coil car 8 is mounted on the upper coil car 7 and travels on a rail 18 attached to the underground so as to be orthogonal to the line. As shown in FIG. The rail 8b is provided, the rail 8b and the top surface of the rail 17 are at the same height, and the upper coil car 7 can move smoothly. Further, below the lower coil car 8, four wheels 2 are provided.
9 is provided, and the drive device for the wheels 29 is incorporated inside. The lower coil car 11 on the exit side has the same configuration. The lower coil car 8 on the entrance side is controlled so as to stop at the stations a, b, g. The lower coil car 11 on the exit side is controlled so as to stop at the stations e and f. It is also possible to provide the driving means for the lower coil car outside. In that case, the cylinder,
Belt or chain type, etc. are possible.

The spool supply device 13 is a device for transferring the spool 30 (see FIG. 1) supplied from the ground due to a shortage of spools or the like to the underground spool conveyor 9, and as shown in FIG. It comprises a rail 31 for storing the spool 30, a stopper means 32, and a transfer means 33. The rail 31 is inclined toward the stopper means 32 and extends to the retracted position of the pedestal 35, and the stopper means 32 is opened and closed by the cylinder 34. Transferring means 33
Is provided with a U-shaped receiving stand 35 (see FIG. 1) at the tip of the rod of the cylinder 36, and transfers the spool 30 to the spool lifter 15. Cradle 35-2
Similar to the upper coil cars 7 and 10, the upper surfaces of the two arms are provided with triangular or arcuate recesses, and the stopper means 32 is opened to firmly receive and mount the spool 30 rolling from the rail 31. Then, the rod of the cylinder 36 is advanced to move the pedestal 35 right above the station c. The spool lifter 15 ascends from between the two arms of the pedestal 35 to receive the spool 30, and after the pedestal 35 retracts, descends to move to the spool conveyor 9 as shown in FIGS. 2 and 4. The spool 30 is transferred to.

The spool take-out device 14 is a device for ejecting the spool 40 conveyed to the station g to the ground as shown in FIG. It comprises a rail 41 for storing the spool 40 and a transfer means 42. Rail 41
Is inclined so as to descend leftward in the drawing from the rear end 45a of the cradle 45 that has advanced to the advanced position, and the stopper 43 is provided at the left end. The transfer device 42 has a U-shaped receiving stand 45 (see FIG. 1) provided at the tip of the rod of the cylinder 44.
The upper surfaces of the two arms are inclined similarly to the rail 41. Therefore, as soon as the spool 40 is received from the spool lifter 16, the spool 40 rolls to the left and is stored on the rail 41. That is, initially, the cradle 45 is retracted, and when the upper coil car 7 carries the spool 40 to the station h, the spool lifter 16 moves up and receives the spool from the upper coil car 7 (see FIG. 7). The spool lifter 16 further rises and once rises above the pedestal 45 and then stops.
Then, the rod of the cylinder 44 of the transfer means 42 is advanced, and the pedestal 45 is put under the spool 40.
Next, when the spool lifter 16 is lowered, the spool 40
Is placed on the pedestal 45, rolled to the rail 41, and packed on the left side of the rail 41.

As shown in FIG. 2, the spool conveyor 9 is provided underground on the working side in parallel with the line and conveys the spool from the entrance side to the exit side. This spool conveyor 9
Fixed beam 51 as shown in FIGS. 8 and 9.
And a movable beam 52. As shown in FIG. 8, the fixed beam 51 is provided with a stopper 54 for stopping the spool at a predetermined position on the upper surface of two horizontal and parallel bars 53.
The bar 53 is fixed to an appropriate height by legs 55.

The movable beam 52 is provided inside the fixed beam 51 and comprises two horizontal and parallel bars 56 and three cross bars 57, 58 and 59 mounted between them.
A cylinder 60 is attached to the inner crossbar 58, and is placed on the four rocking means 61 and 62 as a whole, and the cylinder 60 moves the rocking means 61 and 62 in the direction of the arrow 63. You can slide. Further, the cylinder 60 is attached to the installation base 64 so as to be vertically swingable, and can follow the movement of the swinging means 61, 62. As shown in FIG. 9, the rocking means 61 and 62 respectively include rocking arms 65 and 66 that are rockably supported, and the rocking means 62 is driven by a cylinder 67 and rocks. The moving means 61 is driven by a connecting rod 68 provided between the swing arms 65 and 66. The swing arms 65 and 66 swing between a vertical position and an oblique position shown in FIGS. 9A, 9C, and 9D as shown in FIG. 9B. , Move the movable beam 52 up and down. It should be noted that stoppers 69 are provided on the upper surface of the bar 56 of the movable beam 52 at predetermined intervals similarly to the fixed beam 51.

Next, the operation of the spool conveyor 9 will be described with reference to FIG.
It will be described based on. In FIG. 9A, the stoppers 54 are provided on the fixed beam 51 at a predetermined pitch, and the spools 70, 71, 72 are placed on them. The stoppers 69 are also provided on the movable beam 52 at the same pitch, but they are located at a position lower than the fixed beam 51, and are located outside the rear end 51a of the fixed beam 51, and the spool lifter 15 is provided.
The spool 73 is received by the stopper 69a at the rear end. From this position (position lower than the fixed beam 51), the movable beam 52 rises above the fixed beam 51, as shown in FIG. 9B, and on the way from the fixed beam 51 to the spools 70, 71. , 72 is received. At the upper limit position, the rod of the cylinder 60 is extended, and the spools 70, 71, 72
Is transferred to the right side (outlet side) by one pitch.

Next, as shown in FIG. 9C, the swing arms 65 and 66 are returned to their original lowered positions. Cylinder 6
The rod of No. 0 is still extended, the movable beam 52 moves downward, and the spool 70 is transferred to the upper coil car 10 and the spools 71, 72 and 73 are transferred to the fixed beam 51, respectively. The spool 73 is moved to a stopper at a pitch ahead, and the spool 73 is moved from the rear end of the movable beam 52 to the rear end of the fixed beam 51. In this way, the spool is surely moved one pitch at a time and transferred to the upper coil car 10 on the exit side. Finally, the movable beam 52 after transfer is moved by the cylinder 60 by the swinging means 6
The spool 74, which has been pulled back on the rear side of the first and the second rollers 62 and is newly carried, is received from the spool lifter 15.

By using the walking type conveyor as the spool conveyor 9 as described above, the spool can be reliably conveyed without stopping halfway. But,
In addition, unlike a roller conveyor, even a chain conveyor type equipped with a tool for fixing the spool such as a stopper on the outer periphery of the chain does not rely on friction and gravity unlike the roller conveyor, so the spool can be transported reliably. it can. In that case, the spool lift is provided not only at the rear end of the chain conveyor but also at the front end thereof so that the spool is delivered from the chain conveyor to the upper coil car 10 on the output side. In the chain conveyor type, the upper coil car 1 on the input side receives the upper coil car 1 on the output side.
The movement up to passing to 0 is simplified.

[0032]

As described above, the invention according to claim 1 is
The spool is placed on the upper coil car and the upper coil car is moved to convey the spool, unlike the conventional device that rolls and conveys on the roller conveyor.
The spool can be transported reliably without the risk of the spool stopping on the roller conveyor. In addition, by simply placing the spool on the upper coil car, you can easily deliver from the spool lifter etc., so the handling time is short and the work efficiency is good. Furthermore, the structure is such that only the spool lifter is provided under the rewinding / winding reel, and the underpass is provided so as to avoid the periphery of the rolling mill and the drive side.
The foundation of important equipment such as the take-up reel foundation can be made firm and vibration can be reduced.

According to a second aspect of the present invention, in addition to the first aspect of the invention, an underground passage is provided in the basement on the working side to run the lower coil car, and a spool conveyer is installed. The foundation ground can be solid.

According to a third aspect of the present invention, in addition to the invention according to the first or second aspect, the spool lifter is configured to come out between the two arms of the upper coil car, and the spool lifter that moves up and down is provided. The spool can be easily exchanged with the horizontally moving upper coil car, and the device is simple.

In addition to the invention described in claim 1, 2 or 3, the invention according to claim 4 is compact and can be installed in a narrow space because the upper coil car has no drive means built therein. Therefore, the underpass can be made smaller.

The invention according to claim 5 relates to claims 1, 2 and
In addition to the invention described in 3 or 4, a walking beam type conveyor is used as the spool conveyor, so that the spool can be reliably conveyed.

The invention according to claim 6 relates to claim 1,
In addition to the invention described in 3, 4, or 5, a spool supply device is provided, and a shortage of spools can be supplied from the ground.

The invention according to claim 7 relates to claim 1,
In addition to the invention described in 3, 4, 5 or 6, a spool take-out device is provided, and the spool with the trailing end scrap left unwound can be taken out to the ground.

[Brief description of drawings]

FIG. 1 is a layout view of a ground surface of an embodiment of a spool handling device of the present invention.

FIG. 2 is an underground layout view of an embodiment of the spool handling device of the present invention.

FIG. 3 is a sectional view taken along line AA in FIGS. 1 and 2.

FIG. 4 is a sectional view taken along line BB in FIGS. 1 and 2.

5 is a cross-sectional view taken along the line CC in FIGS. 1 and 2. FIG.

FIG. 6 is an explanatory diagram of the configurations and operations of the upper and lower coil cars and the spool lifter.

FIG. 7 is an explanatory diagram of configurations and operations of upper and lower coil cars and a spool lifter.

FIG. 8 is an explanatory diagram of a configuration and an operation of a spool conveyor.

FIG. 9 is an explanatory diagram of the configuration and operation of the spool conveyor.

[Explanation of symbols]

1 spool 2 metal foil 3 Rewind reel 4 rolling mill 5 take-up reel 6 Inlet spool lifter 7 Entry side upper coil car 8 Entry side lower coil car 9 spool conveyor 10 Output side upper coil car 11 Output side lower coil car 12 Outlet spool lifter 13 Spool supply device 14 Spool take-out device 25 Convex joint 26 Recessed joint 27 cylinders (driving means)

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B21C 45/00-49/00 B21B 1/40 B65H 19/12

Claims (7)

(57) [Claims] 1. A spool handling device for taking out and supplying a spool to a rewinding reel and a take-up reel provided on an inlet side and an outlet side of a rolling mill along a line along which a metal foil is fed, the spool handling device comprising: a) An inlet side and outlet side spool lifter provided below the rewinding reel and the take-up reel for mounting and elevating the spool, and (b) an arm for transferring the spool to and from the spool lifter. Then
An upper coil car on the inlet side and an upper coil side that can move forward and backward along the line and in a direction parallel to the line; and (c) mount the upper coil car on a working side of the rolling mill in a direction orthogonal to the forward and backward direction of the upper coil car. (D) Spool conveyor that is provided on the working side of the rolling mill and that conveys and transfers the spool transferred from the upper coil coil on the incoming side to the upper coil car on the outgoing side. A spool handling device comprising: 2. The spool handling device according to claim 1, wherein an underground passage on which the lower coil car travels and an underground passage on which the spool conveyor is installed are connected to the underground of the working side of the rolling mill. 3. The spool lifter supports a central portion of the spool, and the upper coil car supports near both ends of the spool mounted on the spool lifter, and the spool lifter is pulled out between the spool lifters. The spool handling device according to claim 1 or 2, wherein the spool handling device has a U-shape having two formed arms. 4. A drive means for moving the upper coil car forward and backward is provided outside the upper coil car, and a connecting portion at a tip thereof and a connecting portion of the upper coil car can be brought into contact with and separated from each other in a transfer direction of the lower coil car. However, the spool handling device according to claim 1, 2 or 3, wherein the unevenness is formed in a direction in which the upper coil car cannot move in and out of the forward and backward directions. 5. The spool conveyor comprises a fixed beam and a movable beam capable of swinging and descending with respect to the fixed beam, and is configured to transfer the spool to the exit side by one pitch. The spool handling device according to 2, 3, or 4. 6. A spool supply device capable of supplying another spool from above the working side ground while moving an empty spool from the rewind reel to the take-up reel. The spool handling device according to 3, 4, or 5. 7. A spool take-out device capable of taking out the spool onto the work-side ground while the empty spool is being moved from the rewinding reel to the take-up reel. 4, 5 or 6 spool handling devices.