JP5226871B2 - Storage package for string-like material and storage method for string-like material - Google Patents

Abstract

A tubular storage package which stores a string-like material includes a tubular core rod which is mounted in a center of a bottom of the storage container, the string-like material is a plurality of continuous loop shapes, a storage starting end of the string-like material protrudes, and a winding center of each loop of the plurality of loops is deviated around an axis of the storage container and the loop is laminated.

Description

The present invention relates to a string-shaped object storage package and a string-shaped object storage method.
This application claims priority on June 7, 2010 based on Japanese Patent Application No. 2010-130365 for which it applied to Japan, and uses the content for it here.

As a method for storing a string-like object in a cylindrical container, Patent Document 1 discloses that a string-like object is supplied at a constant speed while rotating the cylindrical container, and the rotation speed of the cylindrical container is varied according to a preset rotation speed pattern. Thus, a method of arranging the string-like object in a spiral shape is disclosed. According to this method, it is said that the storage efficiency and storage stability of the string-like object can be improved by a simple storage mechanism.
Patent Documents 2 and 3 disclose a wire winding machine that stores a wire in the entire cylindrical container.
Specifically, in the winder disclosed in Patent Document 2, a driving device that winds a wire rod around a container in a hollow portion of a fixed hollow cylindrical container is disposed, and the driving device It is a mechanism that revolves around the central axis of the container while rotating the capstan that feeds the wire above the storage portion. Furthermore, a swing mechanism is provided that changes the inclination of the rotation axis of the capstan at a period different from the period of the revolution.
The winding machine disclosed in Patent Document 3 is provided with a turntable called a winding carrier, which rotates a storage medium for winding and laminating a wire, with respect to the wire fed at a constant speed, and the turn The table has a mechanism that rotates eccentrically while rotating slightly.
According to the winding machines described in Patent Documents 2 and 3, the wire can be accommodated in the container in a circular shape with each circle deviating in the rotation direction of the container or in the opposite direction. In such storage, a string-like object can be stored uniformly in the container.

JP 2009-263052 A Japanese Patent Laid-Open No. 2-221072 JP 63-57476 A

In the storage method of the string-like object disclosed in Patent Document 1, the string-like object is stored in a spiral state, but when the string-like object stored in such a manner is pulled out from the storage container in a stationary state, the string-like object is stored. Things sometimes got tangled. This is presumably because the twisted size of the drawn string-like material varies depending on the size of the spiral circle and is easily twisted.
In addition, the wire rod storage mechanism disclosed in Patent Documents 2 and 3 is a mechanism that transmits power from one drive system via a number of gears and shafts to drive other rotations. is there. In addition, when adjusting the storage form, there has been a problem that member replacement work such as changing the gear and adjusting the gear ratio is required.
The object of the present invention is to allow even a simple storage mechanism to circularly store a string-like object in a container with a trajectory in which each circle is shifted in the direction of rotation of the container or in the opposite direction. An object of the present invention is to provide a storage method for a string-like object in which problems such as entanglement are unlikely to occur when it is pulled out and a storage package in which the string-like object is stored in a storage container.

[1] A cylindrical storage package storing a string-like object made of a hollow braid or a hollow knitted string ,
A storage container for storing the string-like object;
A cylindrical core rod attached to the center of the bottom of the storage container;
Have
The string-like object has a plurality of continuous loop shapes,
Each of the plurality of loops is laminated by shifting the winding center around the axis of the storage package ,
The plurality of continuous loops have substantially the same shape, and at least a part of each of the plurality of loops is disposed so as to pass near the core rod outer wall of the storage container and the inner wall surface of the storage container, The string-shaped storage package in which the string-shaped objects forming the plurality of loops are arranged so as to surround a core rod attached to the storage container .
[ 2 ] The vicinity of the outer wall of the core of the storage container is a region whose distance from the outer wall of the core is within 30% of the difference between the container radius of the storage container and the radius of the core, and the inner wall surface of the storage container The storage package according to [1 ], wherein the vicinity is an area within 30% of the difference between the container radius and the core rod radius of the storage container.
[ 3 ] The storage package according to [1] or [2] , wherein a minimum bending radius R of each of the plurality of loops is equal to or greater than a radius of the core rod.
[ 4 ] On the innermost peripheral side of the storage container of the storage package, the distance between two adjacent points where the loop shape of the string-like object intersects is a (mm), and the outer diameter of the string-like object is d (mm) ), The storage package according to any one of [1] to [ 3 ], which satisfies a relationship of d <a <10d.
[ 5 ] The storage according to any one of [1] to [ 4 ], wherein a height of the cylindrical core rod is 100 to 150% of a highest stacked height of the stacked string-like objects. package.
[ 6 ] The storage start end of the string-like object is arranged at a position higher than at least the highest lamination height of the laminated string-like objects, according to any one of [1] to [ 5 ]. Storage package.
[ 7 ] The storage package according to [ 6 ], wherein a storage start end of the string-like object protrudes to the outside of the storage container.
[ 8 ] While supplying the string-like object into the rotating cylindrical storage container at a constant speed, the rotation speed R (rotation / minute) of the storage container is gradually increased and then gradually decreased, or the rotation A method of storing a string-like object in a storage container by periodically repeating a variation pattern that is gradually increased after decreasing the number R,
A place where the string-like objects arranged in the container intersect each other during the two rotations of the storage container is generated, and is formed with one period T (second) of periodic fluctuation of the rotation speed R (rotation / minute). The arrangement trajectory of the string-like object is shifted in the rotation direction of the storage container or in the reverse direction of the rotation direction, and the average rotation speed _Ra (rotation / minute) of the storage container in one cycle T (second) is expressed by the following formula (1). A string-shaped object storage method that sets a string-shaped object supply speed v (m / min), one cycle T (seconds), and a rotation speed R (rotation / minute) of the storage container so as to satisfy the conditions shown.
R _a > v / L (1)
(In Formula (1), L (m) is the circumference on the inner wall surface side of the storage container.)
[ 9 ] The fluctuation pattern of the rotational speed R (rotation / minute) of the storage container is such that a part of the arrangement trajectory of the string-like object formed when the storage container rotates once is near the outer wall of the core rod of the storage container. The string-like storage method according to [ 8 ], which is set to pass through the vicinity of the inner wall surface of the storage container.
[1 0 ] The vicinity of the outer wall of the core rod is an area within 30% of the difference between the radius of the storage container and the radius of the core rod, and the vicinity of the inner wall is within 30% of the difference between the radius of the storage container and the radius of the core rod. The string-like storage method according to [ 9 ], wherein the string is a region.
[1 1 ] R _a is a method for storing a string-like object according to any one of [ 8 ] to [1 0 ], wherein the condition of the following formula (2) is satisfied.
6v / 5L < _Ra <4v / L (2)
[1 2 ] The bending radius R of the arrangement locus of the string-like object is set so as to satisfy a relationship of L / 4π <R <L / 2π, according to any one of [ 8 ] to [1 1 ]. Storage method of the string.
[1 3 ] The distance between the start point and the end point of the arrangement locus of the string-like object formed in one period T (second) of the periodic fluctuation of the rotation speed R (rotation / min) is a (mm) and the string-like object The string-shaped object storage method according to any one of [ 8 ] to [1 2 ], wherein d <a <10d is satisfied when the outer diameter is d (mm).
[1 4 ] A variation pattern of the rotation speed R (rotation / min) of the storage container is set so that the arrangement locus of the string-like object formed when the storage container rotates twice surrounds the rotation axis of the storage container. The string-like storage method according to any one of [ 8 ] to [1 3 ].
[15] R _a is, satisfies the following formula (3), [8] to [14] the method of strands of material according to any one of the housing.
6v / 5L < _Ra <12v / 5L (3)
[ 16 ] The string-like shape according to any one of [ 8 ] to [ 15 ], which satisfies the condition of the following formula (4) when the fluctuation range of the rotation speed of the storage container is Rw (rotation / minute). How to store things.
0.64R _a <R _w <2R _a (4)
[ 17 ] The method for storing a string-like object according to any one of [ 8 ] to [ 16 ], wherein the string-like object is supplied to the storage container from above and near the inner wall surface of the storage container.
[ 18 ] The method for storing a string-like object according to any one of [ 8 ] to [ 17 ], wherein the string-like object is a hollow string.
[ 19 ] The method for storing a string-like object according to any one of [ 8 ] to [ 18 ], wherein the string-like object is a hollow knitted string.

  According to the storage method of the string-like object of the present invention, even with a simple storage mechanism, the string-like object can be uniformly stored in the container in a circular shape, and each circle is shifted in the rotation direction of the container or in the opposite direction, When pulling out the string-like object in a stationary state, problems such as entanglement hardly occur.

It is a schematic side view which shows the storage apparatus used for one Embodiment of the storage method of the string-like thing of this invention. It is a longitudinal cross-sectional view of the storage container which comprises the storage apparatus shown in FIG. It is a figure which shows the arrangement | positioning locus | trajectory of the string-like object in one embodiment of the storage method of the string-like object of this invention. It is a graph which shows an example of the fluctuation pattern of the rotation speed R. It is a figure which shows the other form of the arrangement | positioning locus | trajectory of a string-like object. It is a figure which shows the other form of the arrangement | positioning locus | trajectory of a string-like object. It is a graph which shows the other example of the fluctuation pattern of the rotation speed R. It is a figure which shows the arrangement | positioning locus | trajectory of the string-like object formed with the fluctuation | variation pattern shown in FIG. It is a graph which shows the other example of the fluctuation pattern of the rotation speed R. It is a figure which shows the arrangement | positioning locus | trajectory of the string-like object formed with the fluctuation | variation pattern shown in FIG. 3 is a graph showing a fluctuation pattern of a rotation speed in Example 1. 6 is a graph showing a fluctuation pattern of a rotation speed in Comparative Example 1. It is a figure which shows the arrangement | positioning locus | trajectory of the braided string in the comparative example 1. It is a longitudinal cross-sectional view of the storage package of this invention. It is a longitudinal cross-sectional view which shows the other form of the storage package of this invention. It is a figure which shows the area | region where a part of string-like thing is arrange | positioned. It is a figure which shows the distance between two adjacent points where the loop shape of a string-like object cross | intersects on the innermost periphery side of a storage container.

<String-like material>
As the string-like material used in the present invention, a hollow string-like material having a structure in which a cross section perpendicular to the central axis in the longitudinal direction is substantially circular and has one or more spaces along the longitudinal direction inside is preferable. Used for. Specific examples of the string-like material include highly flexible ones knitted from multifilaments such as hollow braids and knitted strings. Among them, for example, hollow braids are particularly effective in that the effects of the present invention are particularly exhibited. Hollow cords such as braided cords are preferred, and hollow braided cords are more preferred.
Moreover, as a string-like thing, a solid string-like thing can be used besides a hollow thing.
Moreover, a hollow or string-like support for supporting a hollow porous membrane used as a filtration membrane can also be used as the string-like material.
The outermost diameter of the string-like object is not particularly limited, but a size of about 1 to 5 mm is suitable for the present invention.

<Storage device>
FIG. 1 shows an embodiment of a storage device that performs the storage method of the present invention. The storage device 10 of this example includes a storage container 12 that stores the string-like object 11, a rotary table 13 that rotates the storage container 12, and a supply guide 14 that fixes the supply position of the string-like object 11. Yes.

(Storage container)
The outer diameter of the storage container 12 is appropriately selected depending on the storage amount of the string-like object 11, the pull-out form of the string-like object 11, and the like.
In the present embodiment, as shown in FIG. 2, a core rod 15 is attached to the central portion of the storage container 12. Depending on the flexibility of the string-like object 11, there may be a portion where the string-like object 11 is not arranged at the center of the storage container 12. However, if the core rod 15 is attached, the string-like object 11 is arranged. Unfilled parts can be filled, and the storage form is more stable.
Further, the height of the core rod is preferably 100 to 150% of the highest stacking height of the stacked string-like objects.
Here, “the highest stacking height” means the distance from the bottom surface of the storage container 12 to the highest point where the string-like objects 11 are stacked.

(Rotating table)
The rotary table 13 for rotating the storage container 12 is not particularly limited as long as the storage container 12 can be easily installed and the rotation speed R can be periodically changed. Preferably, the turntable 13 is of a drive system having a controller function capable of presetting a fluctuation pattern of the rotation speed R of the storage container 12 and inputting a program of the fluctuation pattern of the rotation speed R.

(Supply guide)
In the present embodiment, the supply guide 14 is attached above the storage container 12 and in the vicinity of the inner wall surface of the storage container 12. Here, “near the inner wall surface” means a range within about 10 times the outer diameter a of the string-like object (about 2.5 mm in the case of a knitted string) from the inner wall surface. If the supply guide 14 is attached in this way, the string-like object 11 can be stored more uniformly in the storage container 12.
The supply guide 14 is not particularly limited as long as it can pass the string-like object 11 and can fix the supply position of the string-like object 11, but a ring-like form larger than the outer diameter of the string-like object 11 is used. preferable. Furthermore, it is more preferable that the ring-shaped surface has a smooth shape without burrs or the like.

<Storage method>
An embodiment of a method for storing the string-like object 11 using the storage device 10 will be described.
In this embodiment, the rotational speed R (rotation / minute) of the storage container 12 is gradually increased while supplying the string-like object 11 through the supply guide 14 into the rotating storage container 12 at a constant speed. The fluctuation pattern, which is gradually decreased after the rotation, or gradually increased after the rotation speed R is decreased, is periodically stored and stored in the string 11 in the storage container 12. At that time, the supply speed v (m / min) of the string-like object 11, one cycle T (second) and the rotation speed R (rotation / min) of the storage container 12 are as follows. It sets so that the location P where the string-like object 11 cross | intersects may be formed in the arrangement | positioning locus | trajectory of the string-like object 11 formed when rotating.
Further, the supply speed v (m / min) of the string-like object 11, one period T (second) and the rotation speed R (rotation / min) of the storage container 12 are formed with one period T of the periodic fluctuation of the rotation speed R. The arrangement trajectory of the string-like object 11 is set so as to be shifted in the direction opposite to the rotation direction of the storage container 12.
Further, the supply speed v (m / min) of the string-like object 11, one period T (second) and the rotation speed R (rotation / min) of the storage container 12 are set to the average rotation speed R _a (rotation / min) of the storage container 12. ) Is set so as to satisfy the condition shown in the following formula (1).
R _a > v / L (1)
In the formula (1), L (m) is the circumferential length on the inner wall surface side of the cylindrical container (the storage container 12 in this embodiment).

The average rotational speed _Ra is expressed by the following formula (2):
6v / 5L < _Ra <4v / L (2)
It is preferable to set so as to satisfy the following formula (3):
6v / 5L < _Ra <12v / 5L (3)
It is more preferable to set so as to satisfy.
The lower limit of the formula (2) is the case where the string-like object is transferred with the maximum length during one rotation of the storage container, that is, the minimum average rotational speed, and the upper limit of the formula (2) is the storage container. When the string is transferred with the minimum length during one rotation, that is, the maximum average rotation speed.
The lower limit of equation (3) is the same value as equation (2), and the upper limit of equation (3) is the string when one loop always has a shape that surrounds the center of the container while the container is rotated once. This is the maximum average speed when the object is transferred with the minimum length.

As shown in FIG. 4, while supplying the rotating storage container 12 at a constant speed, the string-like object 11 is arranged by periodically repeating a variation pattern that increases or decreases the rotational speed R of the storage container 12. The circumferential position of the storage container 12 can be changed.
In the present invention, the rotation path R is increased to reduce the arc radius of the string-like object, and the rotation speed R is decreased to increase the arc radius of the string-like object 11, thereby causing the arrangement trajectory of the string-like object 11. Can be made a circular locus eccentric from the rotation axis. For example, as shown in FIG. 3, it is possible to form an arrangement locus in which the core rod 15 is arranged in a circular shape within the circle.

Moreover, as a preferable aspect of the fluctuation pattern of the rotation speed R (rotation / min) of the storage container 12, a part of the arrangement locus of the string-like object 11 formed when the storage container 12 makes one rotation is shown in FIG. Thus, it sets so that the core-bar outer wall vicinity 31 of a storage container and the inner wall surface vicinity 32 of a storage container may pass. Here, as “near the core rod outer wall”, the distance d2 from the core rod outer wall is preferably within 30% of the difference d1 between the radius of the storage container and the core rod radius. Further, as “in the vicinity of the inner wall surface”, the distance d3 from the inner wall of the storage container is preferably within 30% of the difference d1 between the radius of the storage container and the core rod radius.
“Container radius of storage container” or “radius of storage container” means the distance from the center of the storage container 12 to the inner wall surface of the storage container.
A part of the arrangement trajectory of the string-like object 11 formed when the storage container 12 rotates once is such that the distance d2 from the outer wall of the core rod is within 30% of the difference d1 between the radius of the storage container and the core rod radius. By setting the fluctuation pattern of the rotational speed R (rotation / min) so that the distance d3 from the inner wall of the storage container is within 30% of the difference d1 between the radius of the storage container and the core rod radius, A string-like object can be more uniformly stored in the container 12.
FIG. 3 shows a case where d2 and d3 each pass through a range of 0 to 30% of d1.
If a part of the arrangement trajectory of the string-like object 11 passes through the central area 12a and the outer peripheral area 12b, the string-like object 11 can be more uniformly accommodated in the entire storage container 12.

  In the present embodiment, the fluctuation pattern of the rotation speed R (rotation / min) of the storage container 12 is determined by the arrangement trajectory of the string-like object 11 formed when the storage container 12 rotates twice. Set to surround axis C. If the arrangement locus of the string-like object 11 formed when the storage container 12 rotates twice surrounds the rotation axis C of the storage container 12, the storage form is stable when the core rod 15 is attached to the container 12. It becomes easy to do. Further, when the string-like object 11 is stored in the container 12, the length of the string-like object 11 stored per one rotation of the container can be increased, so that the dependence of the string-like object 11 per unit length is reduced. When the string-like object 11 is pulled out in a state where the frame is left standing, the entanglement is less likely to occur.

  Also, from the point of storage efficiency, when the distance between the circular start point and end point of the string-like object 11 formed in one cycle T is a (mm) and the outer diameter d (mm) of the string-like object 11 is , D <a <10d is preferably set so that one cycle T is satisfied. If d <a, the adjacent loops can be prevented from being stacked in the height direction, and if a <10d, the string-like objects can be stored in the storage package in a dense state.

(Setting of fluctuation pattern of rotation speed R)
The fluctuation pattern of the rotational speed R for making the arrangement locus shown in FIG. 3 can be set by the following method.
First, when setting the variation pattern of the rotation speed R, to set the average rotational speed R _a pattern of variation of the rotational speed R.
For this purpose, the storage length of the string-like object 11 per rotation of the storage container 12 is obtained. In the arrangement locus shown in FIG. 3, the length of the string-like object 11 in one circle corresponds to the storage length of the string-like object 11 per rotation of the storage container 12.
Then, as a simulation, one circular shape of the string-like object 11 to be obtained is formed, the circumferential length thereof is measured, and the string-like object 11 is stored per rotation of the storage container 12 from the measured value. The length L _r (m / rotation) is obtained.
Further, an average rotational speed R _a (rotation / min) is obtained from the storage length L _r (m / rotation) and the supply speed v (m / min) of the string 11. Specifically, it is determined from the equation R _a = v / L _r .

Next, one period T (see FIG. 4) of the periodic fluctuation of the rotational speed R is determined.
For that purpose, the time per rotation of the container (rotation cycle T _a ) is determined from the average rotation number R _a determined as described above from the equation of T _a = 60 / R _a .
Further, a deviation angle between the circular arrangement locus of the string-like object 11 formed by one rotation of the storage container 12 and the circular arrangement locus formed by one rotation of the next storage container 12 is determined. At this time, in order to tentatively determine the period T, the shift angle may be tentatively determined by estimating from the arrangement shape of the string-like object 11 formed as shown in FIG. The shift angle is preferably as small as possible from the viewpoint of storage efficiency. However, if the shift angle is too small, the stacking height of the string-like objects 11 may increase, and the storage efficiency may be lowered. . Therefore, it is preferable to appropriately correct the deviation angle while looking at the storage state.
The time ΔT (second) for generating the deviation angle Δθ (°) is obtained from the equation: ΔT = _Ta · Δθ / 360 (°).
One cycle T is defined as T _a + ΔT. Therefore, one period T can be obtained by T _a + T _a · Δθ / 360.
If ΔT (seconds) is 0 seconds, T = _Ta , and the rotation angle of the storage container 12 in one cycle of the periodic fluctuation of the rotation speed R is 360 °. The placement trajectory is not shifted every cycle T. In this case, the arrangement locus as shown in FIG. Therefore, ΔT is never 0.

Further, the fluctuation range of the rotational speed R is determined.
The larger the fluctuation range of the rotation speed R, the more the locus of the string-like object 11 becomes more eccentric from the rotation axis of the storage container 12. The smaller the fluctuation width of the rotation speed R, the less the eccentric state, and the fluctuation width is 0. If it exists, the locus | trajectory of the string-like object 11 will become a thing centering on the rotating shaft C. FIG.
Since the fluctuation range depends on the flexibility and supply speed of the string-like object 11, even if the target arrangement locus is the same, it cannot be uniquely determined. It is necessary to select appropriately according to the speed.
Therefore, first, the fluctuation range of the rotational speed R is provisionally set, and the locus of the string-like object 11 in the fluctuation pattern of the rotational speed R (the average rotational speed is _Ra and one period is T) is confirmed. . When the obtained trajectory is close to the center of the rotation axis C and it is desired to move away from the rotation axis C, the fluctuation range of the rotational speed R is increased, and the obtained trajectory is far from the center of the rotation axis. When it is desired to approach C, the fluctuation range of the rotational speed R is reduced. Thereafter, the trajectory of the string-like object 11 is confirmed again, and if it is different from the desired trajectory, the fluctuation range is adjusted. By repeating such adjustment of the fluctuation range, the fluctuation range is determined.

Further, if necessary, one cycle T may be further finely adjusted from the viewpoint of storage efficiency. That is, by making a fine correction to reduce ΔT (seconds), the shift angle Δθ (°) can be reduced, and the storage efficiency can be further increased.
As described above, the fluctuation range of the rotational speed R is determined by determining the average rotational speed R _a , the period T, and the fluctuation range of the rotational speed R.

When the fluctuation range of the rotational speed R is R _w (rotations / minute), R _w is expressed by the following formula (4):
0.64R _a <R _w <2R _a (4)
It is preferable to satisfy the following condition.
A variation width R _w is 0.64R _a smaller, loop without eccentricity of the cord-like material, there is disposed can not become concerned about the vicinity core rod outer wall near or inside wall, also becomes greater than 2R _a, cord There is a concern that the loop of the object will not fit neatly in the storage package.

  Note that the rotation of the storage container 12 is due to the rotation of the motor that drives the rotary table, but it is generally difficult to smoothly change the rotation speed of the motor. Therefore, it is not necessary to strictly follow the fluctuation pattern of the rotational speed R obtained as described above, and it is only necessary to use the fluctuation pattern as a target value and change the rotational speed R in a stepwise manner.

It is also conceivable that the set fluctuation pattern of the rotational speed R is different from the actual fluctuation pattern of the rotational speed R. When the deviation angle Δθ is small, a large influence may occur if the deviation angle Δθ is different from the target fluctuation pattern. Therefore, we measured the rotation period T _a of the container 12, when not in rotation pattern of the target, it is preferable to finely adjust the average rotational speed R _a.

As described above, a place where the string-like object 11 intersects is generated in the arrangement trajectory of the string-like object 11 formed when the storage container 12 rotates twice, and the string-like shape formed in one cycle T (seconds). In the manufacturing method of the string-like object of the present embodiment, the arrangement trajectory of the object 11 is shifted in the direction opposite to the rotation direction of the storage container 12 and the average rotation number R _a (rotation / min) satisfies R _a > v / L. Even with a simple storage mechanism, the string-like object 11 can be uniformly stored in the storage container 12 along a locus in which each circular shape has a circular shape and is shifted in the direction opposite to the rotation direction of the storage container 12. Moreover, since the twist at the time of pulling the string-like object 11 from the storage container 12 in a stationary state is small, the twist is suppressed and the occurrence of problems such as entanglement can be prevented. In addition, when the location which the string-like object 11 cross | intersects does not arise in the arrangement | sequence locus | trajectory of the string-like object 11, when average rotation speed _Ra (rotation / min) does not satisfy _Ra > v / L, string-like The trouble at the time of pulling out the object 11 cannot be prevented. If the circular trajectory of the string 11 is not shifted, uniform storage becomes difficult.

(Storage package)
FIG. 14 shows an example of a storage package storing the string-like object according to the present invention.
The storage package 20 according to the present invention includes a storage container 12 and a cylindrical core rod 15 attached to the center of the bottom of the storage container 12. The storage container 12 stores a plurality of loops in which the string-like object 11 is continuous, and each loop is stored around the core bar 15 while being stacked with the winding center shifted.
It is preferable that the plurality of loop shapes of the laminated string-like objects have substantially the same shape.
Here, “substantially the same shape” means a plurality of loop shapes in which the string-like objects 11 stored in the storage container 12 are continuous, and each loop is laminated around the core rod 15 with the winding center shifted. As long as the loop shape of the string-like object 11 is included, the loop shape of the string-like object 11 includes a shape that is not completely the same.
The string-like object 11 forming a plurality of loops is preferably arranged so as to surround the core rod 15 attached to the storage package 20.
More preferably, at least a part of each of the plurality of loops is arranged so as to pass through the vicinity of the outer surface of the core bar and the vicinity of the inner wall surface of the storage container.
Here, the storage package 20 has the following configurations (1) to (3).
(1) Storage container 12
(2) A cylindrical core rod 15 attached to the center of the bottom of the storage container 12
(3) String-like object 11 having a plurality of continuous loop shapes
Further, “near core rod outer wall” and “near inner wall surface” are the same as defined above.
The phrase “arranged so as to surround the core rod” means that the stacked string-like objects 11 surround the core rod to form a plurality of loop shapes.
“It is arranged so as to pass through the vicinity of the outer wall of the core rod and the vicinity of the inner wall surface of the storage package” means that a part of the laminated string-like object 11 having a loop shape is in the vicinity of the outer surface of the core rod. It means passing through a region near the inner wall surface of the storage container 12.
The “core rod outer wall” means the outer peripheral surface of the core rod 15.
By arranging in this way, the stored string-like object is less likely to collapse.
Further, the storage start end 23 of the string-like object is preferably disposed at least at a position higher than the highest stacking height of the laminated string-like objects, and more preferably protrudes from the storage container 12 to the outside. By doing so, it becomes easy to join the string-like object stored in the next storage container.
Here, the “storage start end” means an end of the string-like object 11 stored in one storage package 20 and a part to be connected to the string-like object stored in the next container.

The outer diameter of the string is preferably 0.5 mm to 5.0 mm.
The inner diameter of the storage container is preferably 400 mm to 500 mm.
The height of the storage container is preferably 500 mm to 1000 mm.
The outer diameter of the core rod is preferably 100 mm to 150 mm.

The storage package according to the present invention may include a lid on the top of the storage container.
FIG. 15 shows a storage package 30 having a lid. The storage package 30 according to the present invention has a cylindrical core rod 15 attached to the center of the bottom of the storage container 12. The storage container 12 stores a plurality of loops in which the string-like object 11 is continuous, and each loop is stored around the core bar 15 while being stacked with the winding center shifted. Further, the storage container 12 has a lid body 25 at the top thereof. The string-shaped object storage start end 23 may protrude from the lid through the inner wall surface of the storage container 21. By arranging in this way, it becomes easy to carry out string splicing with a string-like object stored in the next storage container.

It is preferable that the minimum bending radius R of each of the plurality of loops of the string-like object stored in the storage package is equal to or larger than the radius of the core rod 15. By setting in this way, the ground state at the time of pulling out becomes uniform, and bending folds hardly remain on the string-like object.
The bending radius R of the plurality of loops may be constant from the start point to the end point of the loop or may vary.

In the storage package 20 or 30 according to the present invention, as shown in FIG. 17, on the innermost peripheral side of the storage container 12, the distance between two adjacent points (P1 and P2) where the loop shape of the string-like object 11 intersects is determined. It is preferable that the relationship d <a <10d is satisfied, where a (mm) and the outer diameter of the string 11 are d (mm).
Here, “the innermost peripheral side of the storage container 12” means a portion where the distance from the center of the storage container 12 is closest.
If d <a, the adjacent loops can be prevented from being stacked in the height direction, and if a <10d, the string-like object 11 can be stored in the storage container 12 in a dense state.

Note that the present invention is not limited to the above embodiment. For example, in FIG. 3, although the arrangement | positioning locus | trajectory of the string-like thing 11 has shown the circular locus | trajectory eccentric from the rotating shaft, it is not restricted to a circular shape.
In addition, as shown in FIG. 5, the arrangement trajectory of the string-like object 11 may be a trajectory that passes through the outer peripheral region 12b but does not pass through the central region 12a.
In addition, as shown in FIG. 6, the arrangement trajectory of the string-like object 11 formed when the storage container 12 rotates twice does not have to surround the rotation axis C of the storage container 12.
Moreover, as a fluctuation pattern of the rotation speed R, as shown in FIG. 7, a pattern in which the storage container 12 makes one rotation or more during two cycles 2T of the periodic fluctuation of the rotation speed R may be used. In a pattern in which the storage container 12 makes one rotation or more during two cycles 2T of the periodic fluctuation of the rotation speed R, an elliptical arrangement locus as shown in FIG. 8 can be formed.
Moreover, as shown in FIG. 9, the pattern in which the storage container 12 carries out 2 rotations or more in 3 periods 3T of the periodic fluctuation | variation of the rotation speed R may be sufficient. In a pattern in which the storage container 12 rotates twice or more during the three periods 3T of the periodic fluctuation of the rotational speed R, a three-leaf type arrangement locus as shown in FIG. 10 can be formed.
The circular trajectory of the string-like object 11 can be shifted in the rotation direction of the storage container 12. In that case, one period T of the periodic variation of the rotational speed R _{T a} - △ T, i.e. a _{T a -T a · △ θ /} 360.

Further, in the present invention, the supply guide 14 may not be attached above the storage container 12 and in the vicinity of the inner wall surface of the storage container 12. For example, you may attach to the center vicinity of a rotating shaft above the storage container 12. FIG.
In the present invention, the shape of the container is not limited to a cylinder, and may be a cylindrical container having a polygonal bottom surface (such as a quadrangle, hexagon, or octagon).
Further, the shape of the core rod attached to the storage container is preferably cylindrical, but is not limited to the cylindrical shape.

Hereinafter, the present invention will be specifically described by way of examples, but the present invention is not limited thereto.
As a string to be stored, a knitted string having an outer diameter of about 2.5 mm and an inner diameter of about 1.8 mm, which is circularly knitted in a state where five polyester yarns (manufactured by Nanya, "84 dtex-72fil") are bundled, is used. did. This knitted string was supplied to the container and stored while continuously stringing at a speed of 100 m / hour.
As the storage device, the one having the configuration shown in FIG. 1 was used. As the storage container 12, a cylindrical paper drum having a structure in which a core rod 15 having an outer diameter of about 130 mm is attached to the center of an inner volume having an inner diameter of about 450 mm and a height of 820 mm is used.
The turntable 13 used was a structure that was rotated by driving a brushless DC motor (manufactured by Oriental Co.) that can be controlled in a range of 0.4 to 20 rotations / minute. The rotation speed R is changed by a system in which a fluctuation pattern program is input in the sequencer in advance, and at the same time the start button is pressed, a rotation speed command is output from the sequencer to the motor driver according to the fluctuation pattern of the rotation speed R. .
As the supply guide 14, a snail guide (manufactured by Yuasa Yido Co., Ltd.) having a hole diameter of about 6 mm was used. The supply guide 14 was attached above the storage container 12 and near the inner wall surface of the storage container 12. As a result, the braided string that hangs down through the supply guide 14 is made to substantially contact the inner wall surface of the storage container 12.

<Example 1>
As shown in FIG. 3, the knitting string is arranged twice when the storage container 12 is rotated twice by using the storage device 10 as described above, and one cycle occurs. The period T and the number of rotations R were set so that the arrangement trajectory of the braid formed by T was circular and the circle was shifted in the direction opposite to the container rotation direction. Specifically, the stepwise rotation speed R variation pattern (1 cycle T: 34 seconds, average rotation speed _Ra : 1.75 rotations / minute) shown in FIG. 11 was set. Here, the circumferential length L on the inner wall surface side of the cylindrical container is 0.45 m × π≈1.41 m, and when 100 m / hour of the braided string supply speed v is converted per minute, it is 1.67 m / minute. Become. Therefore, v / L≈1.18 / min, and the average rotational speed Ra = 1.75> v / L.
The braided string (string-like material) 11 was stored in the storage container 12 while rotating the storage container 12 with such a fluctuation pattern of the rotational speed R. As a result, with the arrangement track as shown in FIG. 3, a braided string having an amount of about 10,000 m could be stored in a storage time of about 100 hours. Moreover, in this example, the arrangement | positioning locus | trajectory of the string-like object 11 formed when the storage container 12 rotates once passes through the central region and the outer peripheral region, and the string shape formed when the storage container 12 rotates twice. The arrangement trajectory of the object 11 is a trajectory surrounding the rotation axis C of the storage container.
This storage form was not easily collapsed, and when the knitted string was pulled out from the stationary storage container 12 at a speed of 10 m / min, there was no entanglement and it could be pulled out in a stable state.

<Comparative Example 1>
The above-described storage device 10 is used to arrange the knitting string formed when the storage container 12 rotates twice, so that the place where the knitting string intersects does not occur and the knitting string is formed in one cycle T. The period T and the rotation speed R were set so that the arrangement locus was spiral. Specifically, the stepwise rotation speed R variation pattern (1 cycle T: 52 minutes, average rotation speed _Ra : 2.7 rotations / minute) shown in FIG. 12 was set. Here, the peripheral length L on the inner wall surface side of the cylindrical container is 0.45 m × π≈1.41 m, and when 100 m / hour of the braided string supply speed v is converted per minute, it is 1.67 m / Become. Therefore, v / L≈1.18 / min, and the average rotational speed Ra = 2.7> v / L.
The braided string (string-like material) 11 was stored in the storage container 12 while rotating the storage container 12 with such a fluctuation pattern of the rotational speed R. As a result, as shown in FIG. 13, the braided string could be arranged in a spiral shape with the core rod 15 as an axis. In addition, a braided string of about 10,000 m could be stored in a storage time of about 100 hours.
In this storage, a gap is partially formed in the vicinity of the inner wall surface of the storage container 12 or in the vicinity of the core rod 15, and the knitted string is depressed in that portion. Therefore, when the knitted string is pulled out from the stationary storage container at a speed of 10 m / min, it may be caught and the knitted string cannot be pulled out smoothly. In addition, in the spiral arrangement, the twist at the time of pulling out becomes large, and the braided string is pulled out in a twisted state, so that it seems that it is likely to come off from the guide on the way or to be caught.

The string-like storage package according to the present invention includes a string-like object stored in a storage container in a state where a plurality of continuous loop shapes are formed and each loop is stacked with the winding centers shifted. For example, it is suitably used for storing a hollow string-like object because it can store the string-like object uniformly and hardly causes problems such as entanglement when the string-like object is pulled out in a stationary state.

DESCRIPTION OF SYMBOLS 10 Storage apparatus 11 String-like object 12 Storage container 12a Central area | region 12b Outer peripheral area | region 13 Rotary table 14 Supply guide 15 Core rod 20 Storage package 22 Stacked string-like object 23 Storage start end 25 Cover body 30 Storage package

Claims (19)

A cylindrical storage package storing a string-like object made of a hollow braid or a hollow knitted string ,
A storage container for storing the string-like object;
A cylindrical core rod attached to the center of the bottom of the storage container,
The string-like object has a plurality of continuous loop shapes,
Each of the plurality of loops is laminated by shifting the winding center around the axis of the storage container ,
The plurality of continuous loops have substantially the same shape, and at least a part of each of the plurality of loops is disposed so as to pass near the core rod outer wall of the storage container and the inner wall surface of the storage container, The string-shaped storage package in which the string-shaped objects forming the plurality of loops are arranged so as to surround a core rod attached to the storage container . The vicinity of the outer wall of the core of the storage container is a region where the distance from the outer wall of the core is within 30% of the difference between the container radius of the storage container and the radius of the core, and the vicinity of the inner wall of the storage container is stored The storage package according to claim 1, wherein the storage package is an area within 30% of a difference between a container radius and a core rod radius of the container. The storage package according to claim 1 or 2 , wherein a minimum bending radius R of each of the plurality of loops is equal to or larger than a radius of the core rod. On the innermost circumference side of the storage container of the storage container, the distance between two adjacent points where the loop shape of the string-like object intersects is a (mm), and the outer diameter of the string-like object is d (mm). The storage package according to any one of claims 1 to 3 , wherein d <a <10d is satisfied. The storage package according to any one of claims 1 to 4 , wherein a height of the cylindrical core rod is 100 to 150% of a highest stacked height of the stacked string-like objects. The storage package according to any one of claims 1 to 5 , wherein a storage start end of the string-like object is disposed at a position higher than at least a highest stacking height of the stacked string-like objects. The storage package according to claim 6 , wherein a storage start end of the string-like object protrudes to the outside of the storage container. While supplying a string-like object at a constant speed into a rotating cylindrical storage container, the rotation speed R (rotation / minute) of the storage container is gradually increased and then gradually decreased, or the rotation speed R is decreased. A method of storing a string-like object in a storage container by periodically repeating a variation pattern that is gradually increased after being decreased,
A place where the string-like objects arranged in the container intersect each other during the two rotations of the storage container is generated, and is formed with one period T (second) of periodic fluctuation of the rotation speed R (rotation / minute). The arrangement trajectory of the string-like object is shifted in the rotation direction of the storage container or in the reverse direction of the rotation direction, and the average rotation speed _Ra (rotation / minute) of the storage container in one cycle T (second) is expressed by the following formula (1). A string-shaped object storage method that sets a string-shaped object supply speed v (m / min), one cycle T (seconds), and a rotation speed R (rotation / minute) of the storage container so as to satisfy the conditions shown.
R _a > v / L (1)
(In Formula (1), L (m) is the circumference on the inner wall surface side of the storage container.) The fluctuation pattern of the rotation speed R (rotation / min) of the storage container is such that a part of the arrangement locus of the string-like object formed when the storage container makes one rotation is near the outer wall of the core of the storage container, and the storage container The string-like storage method according to claim 8 , wherein the string-like object is set so as to pass through the vicinity of the inner wall surface. The vicinity of the outer surface of the core rod is a region within 30% of the difference between the radius of the storage container and the radius of the core rod, and the vicinity of the inner wall is a region within 30% of the difference between the radius of the storage container and the radius of the core rod. The method for storing a string-like object according to claim 9 . The string-like storage method according to any one of claims 8 to 10 , wherein _Ra satisfies a condition of the following formula (2).
6v / 5L < _Ra <4v / L (2) The method for storing a string-like object according to any one of claims 8 to 11 , wherein a bending radius R of the arrangement locus of the string-like object is set so as to satisfy a relationship of L / 4π <R <L / 2π. . The distance between the start point and the end point of the arrangement trajectory of the string-like object formed in one period T (second) of the periodic fluctuation of the rotation speed R (rotation / min) is a (mm), and the outer diameter of the string-like object is d. The string-like storage method according to any one of claims 8 to 12 , wherein d <a <10d is satisfied when (mm) is satisfied. The variation pattern of the rotation speed R of the storage container (rev / min), placed trajectory of the string-like product container is formed during the two rotations is set so as to surround the rotational axis of the container, according to claim 8 to The method for storing a string-like object according to any one of claims 13 to 14 . The string-like storage method according to any one of claims 8 to 14 , wherein _Ra satisfies a condition of the following formula (3).
6v / 5L < _Ra <12v / 5L (3) The string-like storage method according to any one of claims 8 to 15 , wherein a condition of the following formula (4) is satisfied when a fluctuation range of the rotation speed of the storage container is Rw (rotation / minute).
0.64R _a <R _w <2R _a (4) The string-like storage method according to any one of claims 8 to 16 , wherein the string-like object is supplied to the storage from above the storage container and near the inner wall surface. The string-like storage method according to any one of claims 8 to 17 , wherein the string-like object is a hollow string. The method for storing a string-like object according to any one of claims 8 to 18 , wherein the string-like object is a hollow knitted string.

Images