JP2003335437A - Take-up device of winding element - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remarkably reduce the labor in its configuration, and to remarkably reduce a working time in a take-up device for obtaining a winding element corresponding to the need. <P>SOLUTION: This take-up device 11 comprises a rotating driving means 12 and a supporting means, and a winding core 14 is rotatably supported by both means. The rotating driving means 12 comprises a rotating shaft 15 rotatable in accompany with the rotation of a driving shaft of a servomotor, a mounting flange 16 is integrally formed on its tip, and further a pair of mounting arms 17 are integrally formed. Screw holes 18, 19 are formed in a state of being penetrated through both faces of the mounting arms 17. The winding cores 14 are mounted on each of the mounting arms 17. The winding core 14 is configurated by two winding core pieces 14A, 14B. An interval between the winding core pieces 14A, 14B is adjustable at its basic end part and a tip part side. Further the winding core pieces 14A, 14B are kept in a parallel state. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device,
More specifically, the present invention relates to a winding device for obtaining a winding element built in a secondary battery or the like.

[0002]

2. Description of the Related Art For example, a battery element for a secondary battery such as a lithium-ion battery comprises a positive electrode foil and a negative electrode foil,
A strip-shaped body composed of two separators is wound in a flat cross section.

Conventionally, a winding device for winding such a strip has a winding core having a non-circular cross section, and the winding core is rotatably supported at the base end side thereof, and the main body portion thereof is rotatably supported. A slit is formed by branching. When winding the strip with such a winding device, first, the tip of a predetermined strip is passed through the slit, another strip is wound while rotating the winding core, and the winding core is further rotated a predetermined number of times. The strip is wound around the outer circumference of the winding core by. Next, the band-shaped body is removed from the winding core and crushed to obtain the battery element. still,
The flattened cross section is obtained by the crushing in order to improve the volumetric efficiency by reducing the overall thickness.

[0004]

By the way, the winding core in the winding device is unique to the type of battery element. In other words, when changing the type of the battery element, that is, when it is necessary to change the dimensions such as the width and the thickness, the core itself must be changed. However, it takes a considerable amount of time (for example, 1 to 2 months) to manufacture a core for obtaining a predetermined battery element, even if the developer has considerable skill. Is.

The present invention has been made in view of the above-mentioned problems, and in a winding device for obtaining a winding element according to needs, the labor required for its construction can be dramatically reduced and the working time can be reduced. It is an object of the present invention to provide a winding device capable of achieving a remarkable reduction.

[0006]

Means for Solving the Problems and Effects Thereof The following are means effective for achieving the above object. It should be noted that the effects and the like thereof will be described as necessary.

Means 1. A winding element that is configured to rotatably support a core including at least two core pieces extending in parallel to each other at least at a base end side, and configured to wind a strip-shaped body by rotation of the core. The winding device according to claim 1, wherein the spacing between the winding core pieces is adjustable, and the winding core pieces are maintained in a parallel state at least when winding the strip-shaped body. Winding device for winding element.

According to the means 1, the winding core extends in parallel with each other and is composed of at least two winding core pieces, and each winding core piece is rotatably supported at least at the base end side thereof.
The band-shaped body is wound by the rotation of the winding core, and the winding element is obtained. In such a winding device, the interval between the core pieces is adjustable so that the type of the winding element can be switched to another type, that is, the width and other dimensions can be changed. If necessary, the spacing can be adjusted to configure a device for obtaining a wound element having a width or the like as required. Therefore, when constructing the winding device, skill and labor are not required, and the working time can be remarkably shortened. Moreover, the winding core pieces are configured so that the parallel state of each winding core piece is maintained at least when winding the strip-shaped body. Therefore, it is possible to avoid the problem that the parallel state is impaired due to the winding core being tightened by the belt-like member during winding, and the desired winding element cannot be obtained. As a result, it is possible to more reliably obtain the winding element that meets the needs.

Means 2. A winding element that is configured to rotatably support a core including at least two core pieces extending in parallel to each other at least at a base end side, and configured to wind a strip-shaped body by rotation of the core. The winding device according to claim 1, wherein the core pieces are rotatably supported also on the tip end side of each of the core pieces, and the spacing between the supported core pieces is adjustable on both the base end side and the tip end side. A winding device for winding a winding element.

According to the means 2, the winding core extends in parallel with each other and is composed of at least two winding core pieces, and each winding core piece is rotatably supported at least at the base end side thereof.
The band-shaped body is wound by the rotation of the winding core, and the winding element is obtained. In such a winding device, each winding core piece is rotatably supported not only on the base end side but also on the tip end side. The spacing between the supported core pieces is adjustable on both the base end side and the tip end side. Therefore, when the type of winding element is switched to another type, that is, when it is necessary to change the dimensions such as the width, it is necessary to adjust the distance between the base end side and the tip end side. It is possible to configure a device for obtaining a wound element having a width or the like as necessary. Therefore, when constructing the winding device, skill and labor are not required, and the working time can be remarkably shortened. Moreover, since both ends are supported, it is easy to maintain the parallel state of each core piece when winding the strip. That is, when only one end side is supported, the interval on the tip end side is likely to be narrowed due to the winding core being tightened by the band-shaped body during winding, etc. As a result, the parallel state is unlikely to be impaired, and the problem that the desired winding element cannot be obtained can be avoided. As a result, it is possible to more reliably obtain the winding element that meets the needs.

Means 3. A core including at least two core pieces extending in parallel to each other, a rotation driving unit that rotatably supports the base end side of each core piece, and a support that rotatably supports the tip end side of each core piece. And a winding device for winding a winding element configured to wind a strip-shaped body by rotation of the winding core, wherein the rotation driving means adjusts an interval between the winding core pieces. The winding device for a winding element, wherein a base end side adjusting mechanism is provided and a tip end side adjusting mechanism for adjusting a space between the winding core pieces is provided in the supporting means.

According to the means 3, by rotating the winding cores which are parallel to each other and which are composed of at least two winding core pieces, the strip-shaped body is wound up to obtain a winding element. In such a winding device, the rotation driving means supports the base end side of each winding core piece so as to be able to rotate. The support means rotatably supports the tip end side of each core piece. The spacing between the winding core pieces is adjusted by the proximal end side adjusting mechanism provided in the rotation driving means, and the spacing between the winding core pieces is adjusted by the tip end side adjusting mechanism provided in the supporting means. Therefore, when the type of winding element is switched to another type, that is, when it is necessary to change the dimensions such as the width, it is necessary to adjust the distance between the base end side and the tip end side. It is possible to configure a device for obtaining a wound element having a width or the like as necessary. Therefore, when constructing the winding device,
No skill or labor is required, and work time can be significantly reduced. Moreover, since both ends are supported, it is easy to maintain the parallel state of each core piece when winding the strip. That is, when only one end side is supported, the interval on the tip end side is likely to be narrowed due to the winding core being tightened by the band-like body during winding, etc. As a result, the parallel state is unlikely to be impaired, and the problem that the desired winding element cannot be obtained can be avoided. As a result, it is possible to more reliably obtain the winding element that meets the needs.

Means 4. The tip end side adjustment mechanism includes a support body rotatably supported by the driven body, and a plurality of blocks slidably attached to the support body to form an accommodation hole. 4. The winding device for a winding element according to means 3, wherein the tip portion is configured to be housed.

According to the means 4, the core is allowed to rotate by the support body being driven to rotate while the tip of each core piece is accommodated in the accommodation hole of the tip side adjusting mechanism. Further, by sliding a plurality of blocks provided on the support body and forming the accommodation holes, the positions of the accommodation holes are changed and the position adjustment of the tip end portion of each winding core piece becomes possible.

Means 5. 5. The winding device for a winding element according to means 4, wherein the accommodation holes are arranged symmetrically with respect to the center of rotation of the support.

According to the means 5, since the respective accommodation holes are arranged at symmetrical positions with respect to the rotation center of the support, at least the tip end side of each winding core piece is positioned symmetrically with respect to the rotation center. Therefore, as described above, by maintaining the parallel state of each core piece, it is possible to stabilize the rotating state of the core.

Means 6. 6. The winding device for a winding element according to means 5, wherein the accommodation holes at the symmetrical positions are configured to be movable with one operation while maintaining the symmetrical state.

According to the means 6, each accommodation hole can be moved while maintaining a symmetrical state by one operation. Therefore, the position adjustment can be performed relatively easily, and the work can be simplified and the operability can be improved.

Means 7. 7. The tip end side adjusting mechanism is provided with a rotation preventing mechanism capable of restricting free rotation of the support body in a non-supported state of the winding core piece, according to any one of means 4 to 6. Winding device for winding element.

According to the means 7, the free rotation of the support body in the unsupported state of the core piece can be restricted by the rotation preventing mechanism provided in the tip end side adjusting mechanism. Therefore, it is possible to eliminate a defect due to the support body freely rotating while the core is not supported, for example, a defect that the alignment is required again when the core piece is to be supported next time.

Means 8. The rotary drive means includes a rotary shaft connected to a drive source and mounting means provided on the rotary shaft, and the mounting means and the base end of the winding core piece are fixed by a fixture. In the non-fixed state of the fixture, the core piece is slid in the longitudinal direction of the elongated hole provided in at least one of the attachment means and the base end portion of the core piece, 8. The winding device for a winding element according to any one of means 3 to 7, wherein the interval between the winding core pieces is adjustable.

According to the means 8, the mounting means is rotated in accordance with the rotation of the rotary shaft connected to the drive source, and thereby the base end portion of the core piece fixed to the mounting means is rotated. When the fixing tool is in the non-fixed state, the core piece is slid in the longitudinal direction of the elongated hole provided in at least one of the attachment means and the base end portion of the core piece, so that the interval between the core pieces is increased. Can be adjusted. For this reason, the above-described effects can be achieved with a relatively simple structure without inviting a complicated structure.

Means 9. 9. The winding device for a winding element according to any one of means 1 to 8, wherein the interval between the core pieces is adjustable according to the type of the winding element to be obtained.

According to the means 9, the interval between the core pieces is adjusted according to the type of the wound element to be obtained. Therefore, it is possible to reliably meet the needs for changing the product type.

Means 10. 10. The winding device for a winding element according to any one of means 1 to 9, characterized in that the interval between the core pieces is adjustable according to the material of the strip.

According to the means 10, the interval between the core pieces is adjusted according to the material of the strip. Therefore, it is possible to reliably meet the needs for changing the material.

Means 11. The winding core has a slit,
The winding according to any one of means 1 to 10, characterized in that the winding core is composed of two core pieces having a substantially parallelogrammatic cross section, and both core pieces are movable and adjustable to rotationally symmetrical positions. Device winding device.

According to the means 11, by the two core pieces,
A winding core having a slit and having a substantially parallelogram cross section is configured. Therefore, when the obtained winding element is subsequently crushed, it can be crushed relatively easily with the opposing acute-angled corner portions as a base, and a flat shape can be reliably formed, which improves the volumetric efficiency. It is easy to plan. Moreover, since both the winding core pieces can be moved and adjusted to the rotationally symmetric positions, it is possible to stabilize the rotation state, and thus to achieve the stable winding.

Means 12. The strip-shaped body includes positive and negative electrode foils and a separator for maintaining the both electrode foils in an insulated state, and each electrode foil is provided with a lead. 12. The winding device for a winding element according to any one of 11 above.

When the electrode foil is provided with a lead as in the means 12, the position of the lead of the wound element obtained may be important, but the above-described respective operational effects are exhibited. The lead can be placed at a desired position according to the type of product.

[0031]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment will be described below with reference to the drawings.

First, the structure of the lithium ion battery element obtained by the winding device of the present embodiment will be described. As shown in FIG. 10, a battery element 1 as a winding element.
Mainly includes a wound body in which a plurality of strips 2 are wound in a flat shape. The strip 2 includes two separators 3,
4 and a plus electrode foil 5 and a minus electrode foil 6. The separators 3 and 4 are made of an insulator in order to prevent different kinds of electrode foils 5 and 6 from coming into contact with each other and causing a short circuit. The positive electrode foil 5 and the negative electrode foil 6 are coated with an active material, and the electrode foils 5, 6
Long plate-shaped leads 7 and 8 are attached to the center of the winding so as to project from the battery element 1.

Next, a winding device 11 for manufacturing the battery element 1 will be described with reference to FIGS. The winding device 11 includes a rotation driving means 12 and a supporting means 13, and the winding core 14 is rotatably supported by these both means 12 and 13. 1 and 2 show the base end side of the winding core 14, that is, the rotation driving means 1 of the winding device 11.
FIG. 3 is a partial plan view and a partial side view showing 2. As shown in these figures, the rotation driving means 12 of the winding device 11 includes a servo motor (not shown) that constitutes a drive source, and the rotation shaft 15 is rotatable with the rotation of the drive shaft of the servo motor. Is equipped with. A substantially disk-shaped mounting flange 16 is integrally provided at the tip of the rotary shaft 15. A pair of mounting arms 17 are integrally formed on the mounting flange 16 so as to project toward the tip side (left side in the drawing). Both surfaces of the mounting arm 17 are flat surfaces, and two screw holes 18 and 19 are formed so as to penetrate both surfaces.

As shown in FIGS. 1 to 4, in the present embodiment, the winding core 14 is attached to each of the attachment arms 17. More specifically, the core 14 is composed of two core pieces 1.
4A, 14B, each core piece 14
The base ends 21 of A and 14B are attached to the attachment arm 17. The core pieces 14A and 14B are plate-shaped base end portions 2
1, a main body portion 22 extending from the base end portion 21 for winding the strip-shaped body 2, and a front end portion 23 located on the front end side of the main body portion 22 and having a relatively narrow width.

Each main body 22 is composed of a plate-shaped body having a plate thickness of about 3 mm, and has a substantially trapezoidal cross section. Further, when the pair of winding core pieces 14A, 14B are installed, the cross section is configured to have a substantially parallelogram shape, and the slit 24 is formed in the center thereof (FIG. 9). reference).

Further, at the base end portion 21, the screw holes 18,
Long holes 25 and 26 corresponding to 19 are formed. Then, the bolts 27 are fastened with the elongated holes 25 and 26 and the screw holes 18 and 19 aligned with each other, whereby the core pieces 14A and 14B, that is, the core 14 are positioned and fixed to the mounting arm 17. There is. Under such a configuration, the rotary shaft 15 is rotated in accordance with the rotational drive of the drive shaft of the servo motor, and the core 14 is rotated accordingly.

In the present embodiment, as shown in FIG. 3, due to the existence of the elongated holes 25 (, 26), the base end portion 21 of the winding core piece 14A (, 14B) is positioned with the bolt 27 loosened. It is adjustable. And each core piece 14A,
By adjusting the position of the base end portion 21 of 14B, the width of the core on the base end side can be appropriately adjusted.

The rotation driving means 12 is slidable in the longitudinal direction of the winding core 14 by an actuator such as the cylinder (not shown) so as to allow removal of the battery element 1 after winding.

Next, of the winding device 11, the supporting means 1
3, that is, the configuration of the portion corresponding to the tip end side of the winding core 14 will be described. As shown in FIG. 5, the supporting means 13
Is configured to support the tip of the winding core 14 and allow the rotation thereof in the supported state.
More specifically, the support means 13 includes a support base 32 fixed to the upper part of the support column 31.

An outer cylinder 33 is fixed to the support base 32, and a substantially cylindrical holder 35 is rotatably supported inside the outer cylinder 33 via a bearing 34. Holder 3
A spline shaft 36 is slidable inside the core 5 along the longitudinal direction of the winding core 14. In the figure,
A support body 37 is provided at the right end of the spline shaft 36, and the support body 37 includes the spline shaft 36 and the holder 3.
It is possible to rotate with 5.

On the other hand, at the left end of the spline shaft 36, a rod-shaped key 38 which constitutes a rotation preventing mechanism is provided.
A pair of stoppers 39 are erected on the support base 32 so as to correspond to both sides of the key 38 (see FIG. 8). The spline shaft 36 is biased to the right side in the drawing by a spring mechanism (not shown) so that it is always held in the position shown in the drawing. Therefore, in the rotation angle position shown in the figure and in the unsupported state of the winding core 14,
The spline shaft 36 is urged rightward in the drawing together with the key 38, and the key 38 is sandwiched by the stopper 39. As a result, when the winding core 14 is not supported, the spline shaft 36 and thus the support body 37 are restricted from rotating.

Now, as shown in FIGS. 6 and 7, the support 37 is provided with a substantially disk-shaped block holder 41.
A groove 42 is cut out at a slightly eccentric position so as to pass through the center of the block holder 41, and a pair of blocks 43 and 44 are fitted in the groove 42 and attached.

More specifically, a screw hole (not shown) is formed in the bottom of the groove 42, and long holes 45, 46 are formed in the blocks 43, 44. Then, the blocks 43 and 44 are fixedly attached to the block holder 41 by tightening bolts (not shown) in a state where the screw holes and the long holes 45 and 46 are aligned with each other. Blocks 43 and 4
4, housing grooves 47, 48 having a substantially U-shaped cross section are cut out, and the housing grooves 47, 48 and the block holder 4 are formed.
The side wall formed by the first groove 42 forms a rectangular accommodation hole. A connection portion 49, which is connected to the spline shaft 36 and is movable in the left-right direction in the drawing, is provided at the back of each accommodation hole.

The core pieces 14A and 14B are provided in the respective accommodation holes.
The distal end portion 23 of is fitted. When the core pieces 14A, 14B are fitted, the tip portion 23 of the core pieces 14A, 14B pushes the connecting portion 49 to the left in the figure, which causes the spline shaft 36 and the key 38 to move. Pushed to the left in the figure, the rotation restriction by the stopper 39 is released. That is, when the winding core 14 is supported, the driven rotation of the support body 37, the spline shaft 36, and the holder 35 is allowed as the winding core 14 rotates.

In this embodiment, due to the existence of the long holes 45 and 46, the core pieces 14A, 14A,
The position of the tip portion 23 of 14B can be adjusted. In other words, by adjusting the positions of the blocks 43 and 44, the positions of the tip portions 23 of the winding core pieces 14A and 14B are adjusted, and the winding core width on the tip side can be adjusted appropriately.

Further, the pair of receiving holes constituted by the both blocks 43, 44 and the like are arranged at symmetrical positions with respect to the rotation center of the block holder 41. Further, taper surfaces 51, 52 are formed on the central portions of the blocks 43, 44 facing each other. At the same time, a screw hole 53 is formed in the block holder 41 so as to be orthogonal to the groove 42, and an adjusting bolt 54 is screwed into the screw hole 53. The tip of the adjusting bolt 54 is tapered along the tapered surfaces 51 and 52. Therefore, by appropriately rotating the adjusting bolt 54 (in one operation), the tip end portion of the adjusting bolt 54 receives a stress in the direction in which the tapered surfaces 51 and 52 are separated from each other, and the positional adjustment can be performed at substantially equal pitches. It is possible.

The winding device 11 configured as described above
In the first step, first, the tip ends of the separators 3 and 4 are pulled to a predetermined position, and the winding core 14 which has been separated from the supporting means 13 until then is moved together with the rotation driving means 12 so that the supporting means 13 moves. Winding piece 1 in the receiving hole
The front end portions 23 of 4A and 14B are housed. As a result, the core 14 is supported at both ends while the core pieces 14A and 14B are maintained in the parallel state. Also,
At this point, the separators 3, 4 are placed in the slit 24.
It will be dressed in. Subsequently, the positive electrode foil 5 and the negative electrode foil 6 are appropriately guided while rotating the winding core 14, and then the winding core 14 is rotated at high speed to wind the separators 3 and 4 and the electrode foils 5 and 6. . Then, by rotating the winding core 14 by a predetermined number of rotations,
The strip 2 is wound up. Furthermore, the wound body is removed from the winding core 14 by bringing the winding core 14 into the separated state again. Then, by crushing the wound body, a thin battery element 1 as shown in FIG. 10 is obtained.

According to the present embodiment, on the side of the rotation driving means 12, the elongated holes 25 and 26 provided in the core pieces 14A and 14B and the screw holes 18 and 18 on the mounting arm 17 side, respectively.
Due to the presence of 19, the distance between the core pieces 14A and 14B can be adjusted. On the other hand, on the support means 13 side, the block 4 having the long holes 45 and 46 and the receiving grooves 47 and 48
Due to the existence of 3, 44, the interval between the core pieces 14A, 14B can be adjusted. Therefore, when the type of the battery element 1 or the material of the strip 2 can be switched to another one, that is, when it is necessary to change the dimensions such as the width, the base end side of the winding core 14 The winding device 11 can be configured so as to obtain the battery element 1 having a width or the like as necessary by adjusting the distance on the side of the tip end. Therefore, when constructing the winding device 11 for obtaining the desired battery element 1, it is not necessary to remanufacture the winding core, and no particular skill or labor is required. As a result, the working time can be significantly shortened.

Moreover, since both ends of the core pieces 14A and 14B are supported, the core pieces 14 are wound when the strip 2 is wound.
It is easy to maintain the parallel state of A and 14B. That is, when only the base end side is supported, the interval on the tip end side tends to be narrowed due to the winding core being tightened with a band-like member during winding, etc. In the form of 1, the parallel state is unlikely to be impaired. Therefore, it is possible to avoid the problem that the desired battery element cannot be obtained. As a result, the battery element 1 according to needs can be obtained more reliably.

Furthermore, without complicating the structure,
With the relatively simple structure, the above-mentioned effects can be obtained.

In addition, leads 7 and 8 are provided on the respective electrode foils 5 and 6 in the present embodiment, and in this case,
The positions of the leads 7, 8 of the obtained battery element 1 may become important, but by providing the above-described respective operational effects, the leads 7, 8 can be arranged at desired positions according to the product type and the like. be able to.

It should be noted that the present invention is not limited to the contents described in the above embodiment, but may be carried out as follows, for example.

(A) On the rotary drive means 12 side, threaded holes may be formed in the core pieces 14A and 14B, for example, a long hole may be formed on the mounting arm 17 side.

(B) In the above-described embodiment, a configuration is adopted in which the positions of the respective accommodation holes are moved relative to each other by the operation of the adjusting bolt 54, but such a configuration is omitted and the blocks 43 and 44 are Each position may be adjustable.

(C) In the above embodiment, the core piece 14
Although the key 38 and the stopper 39 are provided in order to regulate the free rotation of the support body 37 and the like in the unsupported state of A and 14B, these may be omitted. Further, a brake mechanism may be separately provided on the support means 13 side. Further, a drive source is also provided on the side of the supporting means 13, and the rotation driving means 1
It may be configured to rotate synchronously with the motor on the second side.

(D) In the above embodiment, the case of manufacturing a lithium ion battery is embodied. However, the embodiment may be embodied in a winding device used for manufacturing another non-aqueous electrolyte secondary battery or the like. Is also possible.

(E) The timing of guiding the separators 3 and 4 and the electrode foils 5 and 6 to the winding core 13 is not limited to the above-mentioned embodiment, and may be appropriately changed according to the product specifications. .

(F) The cross-sectional shape of the winding core 14 does not necessarily have to be a substantially parallelogram shape. Therefore, for example, it can be formed in a substantially rhombic shape.

(G) In the above embodiment, two core pieces 1 are used.
Although the core 14 is composed of 4A and 14B, the core may be composed of three or more core pieces. In this case, not only the core width but also the core thickness may be adjusted.

[Brief description of drawings]

FIG. 1 is a partial plan view showing a rotation driving means of a winding device according to an embodiment.

FIG. 2 is a partial side view showing a rotation driving means of the winding device.

FIG. 3 is a sectional view taken along line JJ of FIG.

FIG. 4 is a perspective view showing a core piece.

FIG. 5 is a schematic sectional view showing a supporting means of the winding device.

FIG. 6 is a schematic perspective view showing a block holder and the like of a supporting means.

FIG. 7 is a schematic sectional view showing a block holder and the like of a supporting means.

FIG. 8 is a partial plan view showing a key and a stopper of the supporting means.

FIG. 9 is a cross-sectional view showing a main body of a winding core.

FIG. 10 is a schematic cross-sectional view showing the structure of a battery element.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Battery element as a winding element, 2 ... Strip-shaped body, 3, 4 ...
Separator, 5 ... Positive electrode foil, 6 ... Negative electrode foil,
7, 8 ... Lead, 11 ... Winding device, 12 ... Rotation drive means, 13 ... Supporting means, 14 ... Winding core, 14A, 14B ... Winding piece, 15 ... Rotating shaft, 17 ... Mounting arm, 18, 19 ...
Screw hole, 21 ... Base end portion, 22 ... Main body portion, 23 ... Tip portion,
24 ... Slit, 25, 26 ... Long hole, 27 ... Bolt, 3
6 ... Spline shaft, 37 ... Support, 38 ... Key, 39 ...
Stopper, 41 ... Block holder, 42 ... Groove, 43, 4
4 ... Block, 45, 46 ... Oblong hole, 47, 48 ... Housing groove, 54 ... Adjust bolt.

Claims (12)

[Claims] 1. A structure configured to rotatably support a core including at least two core pieces extending in parallel to each other at least at a base end side, and a band-shaped body being wound by rotation of the core. The winding device of the wound element is configured so that the interval between the respective core pieces can be adjusted, and is configured such that the parallel state of the respective core pieces is maintained at least when winding the strip-shaped body. And a winding device for a winding element. 2. A core configured by at least two core pieces extending in parallel to each other is rotatably supported at least at a base end side, and a band is wound by rotation of the core. In the winding device of the wound element, which is rotatably supported also on the tip side of each winding core piece,
A winding device for a winding element, characterized in that the distance between the supported core pieces is adjustable on both the base end side and the tip end side. 3. A winding core comprising at least two winding core pieces extending in parallel with each other, rotation driving means for rotatably supporting a base end side of each winding core piece, and a tip end side of each winding core piece being rotated. A winding device for a winding element, which is configured to wind a band-shaped body by rotation of the winding core, the supporting device supporting the winding core, and the rotation driving means includes a space between the winding core pieces. A winding mechanism for a winding element, characterized in that a proximal end side adjusting mechanism for adjusting the winding element is provided, and the supporting means is provided with a distal end side adjusting mechanism for adjusting the interval between the winding core pieces. Device. 4. The tip end side adjustment mechanism includes a support body rotatably supported by the driven body, and a plurality of blocks slidably attached to the support body to form a storage hole. The winding device for a winding element according to claim 3, wherein the tip end portion of each of the winding core pieces is housed in the. 5. The winding device for a winding element according to claim 4, wherein the accommodation holes are arranged symmetrically with respect to a rotation center of the support. 6. The winding element according to claim 5, wherein the accommodation holes at the symmetrical positions are configured to be movable with one operation while maintaining the symmetrical state. Device. 7. The tip end side adjusting mechanism is provided with a rotation preventing mechanism capable of restricting free rotation of the support in a state where the core piece is not supported. The winding device for the winding element according to any one of 1. 8. The rotary drive means includes a rotary shaft connected to a drive source, and mounting means provided on the rotary shaft, and the mounting means and the base end of the winding core piece are fixed by a fixture. When the fixture is not fixed, the core piece is slid in the longitudinal direction of the elongated hole provided in at least one of the attachment means and the base end of the core piece. The winding element winding device according to any one of claims 3 to 7, characterized in that the interval between the winding core pieces is adjustable. 9. The winding of the winding element according to any one of claims 1 to 8, wherein the spacing between the respective core pieces is adjustable according to the type of the winding element to be obtained. Device. 10. The winding device for a winding element according to claim 1, wherein the interval between the winding core pieces is configured to be adjustable according to the material of the strip. 11. The winding core is composed of two winding core pieces having a substantially parallelogrammatic cross section having a slit, and both winding core pieces are movable and adjustable to rotationally symmetrical positions. Item 11. The winding device for a winding element according to any one of items 1 to 10. 12. The strip-shaped body is composed of positive and negative electrode foils and a separator for keeping the both electrode foils in an insulated state from each other, and each electrode foil is provided with a lead. The winding device for a winding element according to any one of claims 1 to 11.