JPS6340733B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a technology for automating and saving labor in folding wrapping paper in shipping and packaging of metal coils such as thin steel plates.

``Prior Art'' Thin steel sheets are mainly supplied as wound coils to large customers. When packaging this coil for shipment, the coil should be wrapped in anti-rust and waterproof wrapping paper, then covered with a steel plate protection plate or corner protective fittings, and secured with steel bands, hoops, etc. will be carried out. This wrapping paper wrapping is done by wrapping a wrapping paper 40 wider than the coil width around the coil 39 as shown in Fig. 1, and then folding the protrusion 40' from the coil end face toward the coil end face as shown in Fig. 2. method is taken.

Conventionally, the work of folding the wrapping paper was done entirely by hand and required a lot of manpower. Automation and labor saving of such work has long been desired, and several proposals have been made regarding automation technology.

The earliest example is, for example,
39276, a large number of plate-shaped levers shaped like elongated triangles are installed radially with the outer edges held by screws, and paper is smoothed onto the end face of the coil and folded. In addition, as in Japanese Patent Publication No. 49-44636, a device in which, instead of the triangular plate, skewer-shaped rollers whose cylinders rotate around a shaft are arranged radially has also been announced.

More recent ones include JP-A-52-45480,
As in Japanese Patent Application Laid-open No. 52-64383, a technique has been announced in which wrapping paper with pre-folds is used and triangular plates are folded in using folding tools arranged radially. These two cases belong to the same inventor, but apart from the fact that the wrapping paper is pre-creased, another distinctive feature is that for each fold crest, one triangular plate is further divided into two vertically. , the width of the triangular plate is widened on the end face of the coil so that the creases are properly formed.

Furthermore, as an improved technique by the same inventor as the above two cases, in JP-A-54-40785, a supporting mechanism shaped like the ribs of an umbrella is placed inside the wrapping paper, and this member is placed between the triangular plates. A method has been announced in which the creases are created without forming creases in advance.
This support mechanism is designed to be folded and retracted in conjunction with the folding operation of the triangular plate, as if the umbrella were being shrunk.

"Problems to be Solved by the Invention" As mentioned above, various methods have been proposed for automating the packaging of metal coils, but none have been put into practical use to date. Technically speaking, it is essentially similar to the method used for automatic packaging of cylindrical items such as cheese, and the same type of technology has been put into practical use for packaging these small items. However, metal coils typically have a diameter of 2 meters or more, which causes the paper to wrinkle and tear, and none of the methods proposed to date have been successful. According to experiments conducted by the present inventors, it was found that as the diameter of the coil increases, it becomes more difficult to fold it, and in particular, when the diameter exceeds about 1.5 m, the difficulty increases dramatically compared to smaller diameters. . Not only did the paper fold well or not fold depending on the type of paper, but there was also a phenomenon in which paper with the same nameplate folded well on a sunny day, but on a rainy day it became full of wrinkles and did not fold at all. . It turns out that this is because the stiffness, or stiffness, of paper changes depending on the humidity.

Also, the dimensions of the metal coil are different from those of the above-mentioned cheese etc., and the dimensions of the metal coil are the width, thickness, length (weight) of the ordered metal plate.
It varies depending on the situation. The only thing that has been standardized is the diameter of the center hole. In all conventionally announced devices, one end of the folding tool such as a triangular plate is connected on the circumference with a hinge or the like, so the contact between the wrapping paper and the triangular plate changes depending on the diameter of the coil, making it possible to achieve good folding with the same device. The range of coil diameters that could be achieved was narrow.

``Means for Solving the Problems'' The present inventors believe that when packaging large items such as metal coils, unlike the case of small items, it is impossible to use a folding method that relies on the rigidity of the paper. I've come to a conclusion. In other words, it would be impossible to simply scale up a method that has been successful in packaging cheese and other products.
Therefore, in the coil packaging method of the present invention, the problems of the prior art are solved by the following configuration.

(1) The end of the coil side packaging cylinder 40 is made to protrude from the end face of the coil to be packaged, and the length l of the protruding part 40' is made larger than the thickness t between the inner and outer surfaces of the coil 39 (Fig. 1, Figure 3, Figure 10, Figure 11).

(2) Bring the plurality of press plates 18 into contact with the outer surface of the wrapping paper at the position where the coil end is located (see Fig. 3 and Fig. 7, which is a cross section of this in the direction of the BB' arrow. However, these are the positions just before contact). (3) At the same time, a plurality of pleating rods 27 are brought into contact with the inner surface of the end of the wrapping paper in parallel between the adjacent pressing plates 18 (FIGS. 3 and 7). .

(4) Rotate the press plate 18 toward the end face of the coil (FIG. 8).

(5) At the same time, while applying a spring force to the pleat forming rod 27, the pleat forming rod 27 is rotated in response to the operation of the press plate 18 around the rotation axis of the base until it separates from the end of the wrapping paper.

(6) Slide the press plate 18 over the end face of the coil toward the center of the coil (FIGS. 4 and 9).

(7) Radial folds 41 are protruded at approximately equal intervals between adjacent press plates 18, 18 (FIGS. 14 and 15),
With the packaging cylinder 40 fixed in the rotational direction, the push plate 18 is slid in the rotational direction to collapse the protruding folds 41 onto the folding surface 40'' in the same direction (FIGS. 16 and 17).

(8) Coil inner surface fitting tool 3, which is provided so that it can move forward and backward.
3 and a ring 42 supported thereon, the coil 39 is folded along the inner surface thereof, and the ring 42
(Fig. 2, Fig. 5).

Although the coil packaging method of the present invention is as described above, we have also invented an apparatus for carrying out this method. To describe the requirements of the device of the present invention (see the side view of the device in Fig. 3), (1) A cylinder 2 is provided protruding from the machine frame 1, and a rotating cylinder 5 is installed on the outer periphery of the cylinder 2 in the sliding direction. be fixed to.

(2) A plurality of long opening/closing arms 14 whose bases are pivotally supported are provided on the outer periphery of the rotating tube 5. The tip of the opening/closing arm 14 is movable from a position near the center hole of the coil to be packaged to a position on the outer periphery of the coil, which is the maximum capacity of the device.

(3) A push plate 18 is pivotally supported at the tip of each opening/closing arm 14.

(4) A spring 20 is provided between the push plate 18 and the opening/closing arm 14. The spring 20 is attached so that the push plate 18 maintains a direction substantially parallel to the outer circumferential surface of the coil when it is in its free position, and increases its tension as it rotates toward the end surface of the coil.

(5) At an intermediate position between the adjacent push plates 18, there is provided a pleat forming rod 27 which pivotally supports the base and is attached to the machine frame 1 via a radial position adjustment mechanism (reference numbers 21 to 25). . In the free position, this pleating rod remains substantially parallel to the outer circumferential surface of the coil, and is pulled by a spring 29 so that the tension increases as it rotates in the direction of the coil axis.

(6) A coil inner surface fitting 33 is provided at the tip of the cylindrical body 2 so as to be movable forward and backward.

This is achieved by a combination of the above-mentioned constituent elements.

"Function" The function of each of the above-mentioned constituent elements of the coil packaging method of the present invention will be explained below.

First, wrap paper around the side of the wrapped coil. Seams of paper are usually secured with adhesive tape. This cylindrical wrapping paper, that is, the packaging cylinder 40
The length l of the protrusion from the end face of the coil is larger than the thickness t between the inner and outer surfaces of the coil 39. This is because the paper is folded into the hole on the inner surface of the coil. The coil is then placed on a stand 38 with a plurality of push plates 18 in contact with the outer surface of the wrapper, near where the ends of the coil are on the inner surface of the wrapper (see FIG. 3). This push plate 18 has a shape based on an isosceles triangle, and may also have a shape with the apex portion cut off as shown in FIG. 8, that is, a trapezoid. This push plate 18 is rotatably attached to the tip of the opening/closing arm 14.

On the other hand, before and after this, the same number of pleating rods 27 as the pressing plates 18 are brought into contact with the inner surface of the end of the wrapping paper in parallel at the intermediate position of the pressing plates. By holding the wrapping paper from the inner and outer surfaces in this manner before starting the folding operation of the wrapping paper, the protrusion 40' from the end surface of the coil of the wrapping paper is correctly held in a cylindrical shape. If the wrapping paper is not properly cylindrical at the beginning of packaging, subsequent steps will be unsuccessful. When packaging large items such as metal coils, it is difficult to maintain the cylindrical shape by itself even if wrapping paper is used, which has a high rigidity, so it is necessary to support the wrapping paper by such means. Moreover, in order to make packaging that is as independent as possible from the rigidity of the wrapping paper, that is, unaffected by the brand of wrapping paper or the climate and humidity, it is important to constrain the wrapping paper as much as possible during the folding process. I found out that there is. That is, it is preferable to support the wrapping paper by a line rather than a point, and a plane is preferable to a line. Moreover, it is effective to support it with as long a line as possible and on a wide surface. It can be said that supporting the wrapping paper with a surface from the outside and a wire from the inside as in the method of the present invention is the best possible method.

Next, the press plate 18 is rotated from the state of contact with the outer peripheral end of the coil toward the end face of the coil. This rotation is performed around the contact line between the push plate 18 and the edge of the coil end. This is the opening/closing arm 1 in the device shown in Figure 3.
4 toward the center of the coil, the push plate 18 will rotate around the hinge 19, so this can be done.
At this time, the contact line of the end of the coil with the ridge is slightly shifted on the surface of the push plate 18, and the center of rotation is not constant, but this does not pose a problem in practice. The wrapping paper 40 is folded as shown in FIGS. 12 and 13 by the rotation of the push plate 18, while the pleating rod 27 is applied with force by the spring 29 (FIG. 3). At the same time, the tip is tilted toward the center of the coil by the rotating shaft 28 (the state indicated by the two-dot chain line in FIG. 7). As a result, fold ridges are formed between the push plates 18. As the push plate 18 rotates toward the end face of the coil, the pleat forming rod 27 becomes less engaged with the wrapping paper and naturally separates from the wrapping paper, but until then, the wrapping paper is kept in a tensioned state from beginning to end. This allows reliable folding without depending on the rigidity of the wrapping paper.

Further, since the above-mentioned operation of the pleating rod 27 is performed in a driven manner by the operating force of the push plate 18, a force exceeding the strength regulated by the strength of the spring 29 is not applied to the wrapping paper. Therefore, even if the pleating rod 27 is not moved in synchronization with the movement of the push plate 18, there is no risk of tearing the wrapping paper.
After the push plate 18 comes into contact with the end face of the coil due to the rotational movement (Fig. 8), it slides toward the center of the coil (Fig. 9).
), thereby forming the radial folds 41 in FIG.
It is completely attached as shown in Figure 15. This operation is also performed continuously with the previous operation by further rotating the opening/closing arm 14 toward the center of the coil following the rotation of the push plate. Next, by rotating the push plate 18 all at once about the coil axis, the folds 41 are laid down on the end face of the coil, and the ring 42 is fitted with the push plate 18 holding down the fold 41 on the end face of the coil. Insert and fix using tool 33 (Fig. 16,
Figure 17).

In the above, the folds can be collapsed by rotating the coil instead of moving the push plate 18, but it is preferable to move the push plate because there is no risk of wrinkles or damage to the wrapping paper. Furthermore, if the ring 42 is not inserted while the push plate 18 is pressing the end face of the coil, the folded folds will open due to the elasticity of the paper, so it is necessary to attach the ring with a device that is integrated with the folding device. Note that in FIG. 5 showing this operating state, a part of the push plate 18 is lifted up from the end surface of the coil, but when the previous folding operation is completed, a part of the push plate 18 will close the center hole ( (Fig. 4, Fig. 9), the opening/closing arm was moved back a little, and this degree is not a problem. Next, the effects of each of the above-mentioned constituent elements of the apparatus of the present invention will be explained below.
A cylindrical body 2 is protruded from a machine frame 1, and a rotary cylinder 5 is provided on the cylindrical body 2. A plurality of opening/closing arms 14 rotatable by pins 15 are attached to this on the circumference. The tip of the opening/closing arm 14 must reach from a position near the center hole of the coil to a position on the outer periphery of the coil. Therefore, it is necessary to have a sufficient length in consideration of the maximum diameter of the coil according to specifications, which is the device capacity. Also, push plate 1
In order to press the coil 8 against the side surface of the coil, it is desirable that the coil be curved as shown in FIG. A push plate 18 is attached to the tip of each opening/closing arm 14 by a rotating shaft 19, and is tensioned by a spring 20 so that the tension increases as it rotates toward the end face of the coil. . In the free state, the push plate 18 is placed in a position substantially parallel to the outer surface of the coil, ie, in the position shown in FIG. 3, by a rotation stopper (not shown). With such a mechanism, a series of steps of the method of the present invention including pressing the pusher plate 18 against the outer circumferential surface of the coil, rotating the pusher plate 18 toward the end face of the coil, and sliding the pusher plate 18 toward the center of the coil on the end face of the coil are performed. The operation can be realized by a single operation of driving the opening/closing arm 14. The opening/closing arm 14 or the push plate 18 can be rotated all at once from a fixed position by a certain angle, for example, about 30 degrees, about the coil axis in order to collapse the folds. The rotation of the rotating cylinder 5 is for this purpose.

A pleating rod 27 is provided at an intermediate position of the fixed position of the coil axial rotation of the push plate 18, that is, between the push plates. This pleat forming rod 27 is the rotating shaft 2.
8, the tip is pulled by a spring 29 so that the tension increases as the tip rotates toward the coil axis. A rotation stopper (not shown) is provided so that the pleating rod 27 is parallel to the coil axis in the free position.
Further, in the method of the present invention, at the start of a series of folding operations, it is necessary to bring the pleating rod into contact with the inner surface of the wrapping paper parallel to the coil axis. Therefore, a radial position adjustment mechanism is required. For the above purpose, the position adjustment range needs to be at least the radius of the coil to be packaged. Actually, in order to insert the pleat forming rod 27 inside the wrapping paper at the start of packaging, it is necessary to move the coil further inward than the minimum diameter of the coil. In the apparatus shown in FIG. 3, this position adjustment mechanism is provided by screw feeding mechanisms 21-25.

In addition, a coil inner surface fitting tool 33 is attached to the tip of the cylinder body 2.
A ring 42 is attached to this in advance and inserted into the center hole of the coil. In the method of the present invention, this ring is installed while the folds 41 are laid down by the pusher plate 18 and the pusher plate 18 is pressing the end face of the distal coil. In order to realize this, in the device of the present invention, the coil inner surface fitting member 33 is also attached to the cylindrical body 2 that supports the opening/closing arm 14 etc. via an advancing/retracting mechanism, so that the device has an integrated function.

"Example" An example of an apparatus for carrying out the method of the present invention will be described below with reference to FIGS. 3 to 5.

A cylindrical body 2 is protruded laterally from a machine frame 1, and the base of the cylindrical body 2 is supported by a cylinder 4 along upright guides 3, 3 so as to be adjustable up and down. The rotating tube 5 is fixedly fitted in the sliding direction on the outer periphery of the protrusion of the cylinder 2, and the sliding tube 6 is fitted on the outer periphery of the rotating tube 5.

Inside the cylinder 2, there is a screw rod 7 along its center line a.
is supported by bearings 8, 8, and the rotating motor 9 of the screw rod 7 is
a screw 1 provided in the cylinder 2 and screwed into the screw rod 7;
0 and the sliding tube 6 are integrally connected by a connecting rod 11. This connecting rod 11 is a wide window 12 bored in the cylinder body 2.
The rotary cylinder 5 is provided through a slit 13 extending in the direction of the center line a.

The bases of a plurality of (16) opening/closing arms 14 are pivotally supported on the outer periphery of the tip of the rotating tube 5 by pins 15 perpendicular to the center line a, and the protrusions 16 provided on the sliding tube 6 and the opening/closing arms 14 is connected by a connecting rod 17, and the center line a of the sliding tube 6 is
The 16 arms 14 can be opened and closed by sliding back and forth in the directions. The outer surface of a trapezoidal push plate 18 is pivotally supported at the tip of the opening/closing arm 14 by a hinge 19, and the rear end of the plate 18 and the arm 14 are connected by a spring 20.
The force of the spring 20 holds the plate 18 in a direction substantially parallel to the outer peripheral surface of the coil in the free position, and the tension increases as the plate 18 rotates toward the end surface of the coil.

The rotating tube 5 has a horizontal arm 3 that protrudes backward from the sliding tube 6.
A cylinder 36 is provided between the rear end of 4 and the machine frame 1 via universal joints 35, 35 (see Fig. 4).
The horizontal arm 34 is raised and lowered by the expansion and contraction of the horizontal arm 34, and as the horizontal arm 34 is raised and lowered, the sliding tube 6 is rotated back and forth, and with this rotation, the connecting rod 11 pushes the slit 13 and the rotating tube 5 is rotated back and forth. can. Note that the reference numeral 37 in the figure is a lifting guide roller provided on the cylindrical body 2.

At the base of the cylinder 2, 16 screw rods 21 are supported in the radial direction by bearings 22, 22, and bevel gears 23 provided at the base end of each screw rod 21 are meshed with each other (Fig. 6).
Each screw rod 21 is rotated by the prime mover 24.
can be rotated in the same direction at the same time. A screw 25 is screwed into each screw rod 21, and the positions of the screws 25 can be changed simultaneously in the radial direction.

Each screw 25 is provided with a small arm 26 facing diagonally upward and forward,
A pleating rod 27 is supported at the tip of the small arm 26 by a rotating shaft 28, and the rear end of the rod 27 and the small arm 26 are connected by a spring 29, so that the rod 27 is approximately parallel to the outer peripheral surface of the coil in its free state. The tension is maintained so that the tension increases as the coil rotates in the axial direction. These plurality of pleat forming rods 27 are held at intermediate positions between the same number of push plates 18.

A multistage cylinder 30 along the center line a is provided at the tip of the cylindrical body 2 formed in this way, and the cylinder 30 has a tapered outer peripheral surface 31 and a flange 32.
A coil inner surface fitting member 33 having a coil inner surface fitting member 33 is provided so as to be movable forward and backward by the cylinder 30.

``Effects of the Invention'' The coil wrapping method of the present invention is designed to maximize the wrapping paper during the folding operation, whereas conventionally proposed methods depend largely on the stiffness, i.e., the stiffness, of the wrapping paper in its operation principle. This problem was solved by applying a restraining force, making it possible to automate the packaging of large diameter circular objects.

That is, at the start of the folding operation, the push plate 18
The wrapping paper is clamped over as wide a surface as possible from the inner and outer surfaces using the pleating rods 27, and an appropriate tension is applied to the paper even on the free surface portion not in contact with the pressing plate or the like. Furthermore, during the folding operation, the push plate is rotated from this position toward the end face of the coil, so the push plate and the pleat forming rod sandwich the wrapping paper from the inside and outside, applying tension while allowing the folding to proceed. . In all of the coil wrapping methods proposed so far, the push plate first comes into contact with the circumferential edge of the wrapping paper at the start of operation, and means for supporting and restraining the wrapping paper are also provided. As a result, the paper became wrinkled and the folding became awkward.

Furthermore, if the pleating rod 27 is adjusted to be at the coil radius position at the start of the folding operation, it will then be driven by the operation of the push plate 18 until it is separated from the wrapping paper. Therefore, no synchronization mechanism with the movement of the push plate 18 is required, and there is no risk that an unexpected force greater than that determined by the spring 29 will cause the paper to tear.

In addition, in the device of the present invention, by a single action of driving the opening/closing arm 14 in the direction of the coil center axis, the press plate 18 attached to the tip thereof is brought into contact with the outer circumferential end of the coil, and then directed toward the end face of the coil. A series of different actions can be performed, such as rotating and then sliding over the end face of the coil towards the center of the coil. This simplifies the mechanism, and does not require, for example, a mechanism that creates creases by dividing the press plate itself into two and increasing its width.

In addition, there is great flexibility with respect to the diameter of the coil to be packaged, and by making the opening/closing arm 14 long, the push plate 18 attached to the end of the opening/closing arm 14 can be placed almost parallel to the outer peripheral surface of the coil in a free position, regardless of the coil diameter. It can be done. In order to accommodate the coil diameter, it is necessary to change the position of the pleating rod 27 in addition to the operating range of the opening/closing arm described above, but this can be easily handled by the radial position adjustment mechanism. In conventionally proposed coil packaging devices, the bottom of the push plate is connected at a fixed position with a hinge, so there is little flexibility regarding the coil diameter, but the present invention can easily create a device that can accommodate a wide range of coil diameters. It can be designed to

Also, coil inner surface fitting tool 3 for attaching the ring.
3 is integrally provided using the hollow space of the cylindrical body 2, so the ring can be attached while the folding of the folds is completed and the pressing plate is pressing the end face of the distal coil. Therefore, there is no need to provide a means to prevent the folds from opening due to the elasticity of the paper, unlike when reattaching the ring.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the state in which wrapping paper is wound around a coil before folding, Fig. 2 is a perspective view showing the wrapping completed state, and Fig. 3 is a cross-sectional view of a part of the device of the present invention in the state where the folding operation has started. FIG. 4 is a partially omitted side view of the device of the present invention in a state where the folding operation is completed, FIG. 5 is a side view of the device of the present invention with a ring attached, and FIG. 6 is a plication lever position adjustment mechanism. Fig. 3 A-A cross-sectional view, Fig. 7, Fig. 8, Fig. 9
The figures are a cross-sectional view taken along the line B-B in Fig. 3, Fig. 10, and Fig.
14 and 16 are longitudinal sectional views of a portion of the coil, FIG. 11, FIG. 13, FIG. 15, and FIG.
Figure 17 is Figure 10, Figure 12, and Figure 14, respectively.
FIG. 17 is a front view of the coil corresponding to FIG. In the figure, 1 is a machine frame, 2 is a cylinder, 5 is a rotating cylinder, 14 is an opening/closing arm, 15 is a pin, 18 is a push plate, 1
9 is a hinge, 20 is a spring, 27 is a pleating rod, 28 is a rotating shaft, 29 is a spring, 33 is a coil inner surface fitting, 39 is a coil, 40 is a wrapping paper, and 40' is a protrusion from the coil end surface. , 40″ is the folding surface, 41 is the pleat,
42 is a ring.

Claims (1)

[Claims] 1. An end of the coil side packaging cylinder 40 is made to protrude from the end face of the wrapped coil 39, and the length l of the protrusion 40' is made larger than the thickness t between the inner and outer surfaces of the coil 39, A plurality of push plates 18 are brought into contact with the outer surface of the wrapping paper at a position where the end of the coil is located inside the wrapping paper, and a plurality of wall forming rods 27 are brought into contact with the inner surface of the end portion of the wrapping paper in parallel to the inner surface of the end portion of the wrapping paper. After making contact with the end of the wrapping paper, the push plate 18 is rotated toward the end face of the coil, and the wall forming rod 27 is pushed around the rotation axis of the base while applying a spring force until it comes off from the end of the wrapping paper. The press plate 18 is rotated in response to the operation of the plate 18, and the press plate 18 is made to slide toward the center of the coil on the end face of the coil, and radial walls 41 are protruded at approximately equal intervals between adjacent press plates 18, 18. When the packaging cylinder 40 is fixed in the rotational direction, the push plate 18
The protruding wall 41 is laid down in the same direction on the folding surface 40'' by sliding in the rotational direction, and then the coil inner surface fitting tool 33 and the fitting tool 3 are moved forward and backward.
A coil packaging method characterized in that the coil 39 is folded along the inner surface of the coil 39 using a ring 42 supported by the coil 39 and fixed by the ring 42. 2. A cylinder body 2 is provided protruding from the machine frame 1, and a rotary cylinder 5 is fixed in the sliding direction on the outer periphery of the cylinder body 2, so that the tip of the cylinder body 2 extends from a position near the center hole of the coil to be wrapped to the maximum capacity of the device. A plurality of long opening/closing arms 1 whose bases are pivotally supported on the outer periphery of the rotating cylinder 5 so as to be able to move up to the outer periphery of the coil.
4, and a push plate 18 is provided at the tip of each opening/closing arm 14.
The spring 20 is attached to the push plate 18 so that the push plate 18 maintains a direction substantially parallel to the outer peripheral surface of the coil in the free position and increases the tension as it rotates toward the end face of the coil. A base plate is provided between the opening and closing arm 14, and the base is pivotally supported at an intermediate position between the adjacent push plates 18, and in a free position, it maintains a direction substantially parallel to the outer peripheral surface of the coil and rotates in the direction of the coil axis. Therefore, the wall-forming rod 27 is tensioned by the spring 29 to increase the tension and is further attached to the machine frame 1 via a radial position adjustment mechanism.
A coil inner surface fitting tool 3 is provided at the tip of the cylindrical body 2.
3. A coil packaging device characterized in that the coil packaging device is provided with a coil that can move forward and backward.