JPH0639860U - Lithium tape reel - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the work efficiency during packaging and use, and to prevent discoloration, scratches, winding misalignment, etc. of the lithium tape. [Structure] A cylindrical portion around which a lithium tape is wound, a first disc-shaped member fixed to one end of the cylindrical portion, and another end of the cylindrical portion which can be removed so as to face the first disc-shaped member. And a tray-shaped second disc-shaped member whose peripheral portion is curved in the direction of the first disc-shaped member.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention aims at facilitating the work of winding up and rewinding the lithium tape, and also preventing damage, misalignment, winding disorder, and winding of the wound lithium tape during transportation. For reels.

[0002]

[Prior art]

 Lithium, which is used as a material for batteries and the like, is wound into a tape on a reel, wrapped, and transported.

FIG. 4A is a front view of such a conventional lithium tape reel, and FIG. 4B is a side view thereof. This lithium tape reel 1 is composed of a cylindrical portion 3 around which a lithium tape 2 is wound, and a pair of disks 4a and 4b fixed to both ends of the cylindrical portion 3 to protect the wound lithium tape 2. Has been done. When the lithium tape 2 is wound around the cylindrical portion 3, the reel 1 is used by inserting it into a lithium tape rolling machine or a winding shaft of an extruder. By winding the lithium tape 2 around the reel 1 in this manner, the lithium tape 2 is protected by the disks 4a and 4b, and damage during transportation is prevented. The wound lithium tape is usually packed and transported in a laminated bag with an inert gas such as Ar gas in order to prevent the reaction with moisture.

FIG. 5 is a sectional view of a lithium tape reel according to another conventional example. In this reel 11 for lithium tape, with the disks 13 and 15 removed, the lithium tape 2 is wound around one end of the cylindrical portion 12 and wound, and the cylindrical portion 12 is placed on the disk 13 with the lithium tape side facing down. , The disk 15 is placed on it, and the disk 15 and the cylindrical portion 12 are fixed to the disk 13 by screwing with a bolt 14 to a flanged nut fixed to the central portion of the disk 13. Is configured. The disk 13 has a tray-like shape whose peripheral portion is curved in the direction of the disk 15. According to this, the lithium tape 2 is supported on the entire surface of the disk 13, and the gap between the disk 13 and the lithium tape 2 can be eliminated. Therefore, by placing the disk 13 downward, the lithium tape 2 will not be misaligned, rolled up, or disturbed even if there is vibration during transportation.

In Japanese Utility Model Publication No. 4-60974, a pair of a first disk and a second disk having the same shape as that of FIG. 4 and a cylindrical portion are provided, but the cylindrical portion is fixed to the first disk. A reel for metal tape is described, which has a first cylindrical portion and a second cylindrical portion fixed to a second disc, and is configured such that the second cylindrical portion is removable from the first cylindrical portion. The publication further describes a reel for metal tape having a shape similar to that of FIG. 5, but having a cylindrical portion fixed to a tray-shaped disk.

[0006]

[Problems to be solved by the device]

 However, when the reel shown in Fig. 4 is used for lithium tape, vibrations during transportation may cause collisions and friction between reels. Therefore, pinholes are opened in the packaging material such as the laminated sheet, and air enters through the pinholes to prevent vaporization. There is a drawback that the lithium tape 2 often reacts with the lithium tape 2 and discolors. At this time, in the case of the shape like the reel 1 of FIG. 4, either of the disks 4a or 4b becomes the bottom surface, and the corners increase the possibility of opening the pinhole. Further, in addition to the drawback that there is a large amount of discoloration, there is a drawback that the outermost periphery of the lithium tape 2 comes into contact with a packaging material such as a laminate sheet and the tape is easily damaged. Further, during winding, the lithium tape 2 is wound at a position between the discs 4a and 4b, and a gap is created between the lithium tape 2 and the discs 4a and 4b. However, winding misalignment, rolling, winding disorder, etc. may occur.

[0007] Further, even in the case of the first and second cylindrical portions in which the cylindrical portions are detachable from each other, which is described in the above-mentioned publication, when used for a lithium tape, similarly, discoloration and scratches are caused. There's a problem.

On the other hand, in the case of the reel 11 of FIG. 5, the lithium tape 2 is reliably protected by the disks 13 and 15 and winding misalignment during transportation is prevented. There are drawbacks that the work from winding up to the mounting of the disks 13 and 15 is complicated and the number of man-hours is large. In addition, the number of equipment will increase accordingly, and the weight will increase, resulting in poor workability. Furthermore, when the lithium tape itself is held by hand, the soft lithium metal is deformed and the tapes adhere to each other, and when rewinding, there is a problem that it does not peel off well and dirt adheres. At the time of manufacture, it is inserted into the rewind shaft and rewound, but in the case of the reel 11, there is also a problem that handling is difficult because the entire weight must be supported only by the cylindrical portion when inserting it into the shaft. Further, the lithium tape needs to be used in a limited space such as in an argon box or a dry box in order to separate from a general atmosphere in order to avoid discoloration, deterioration, etc., and thus it is more difficult to handle.

Further, the cylindrical portion fixed to the tray disk described in the above publication is not used in practice because the curved peripheral portion of the tray disk obstructs winding and unwinding of the lithium tape. It cannot be done. Alternatively, even if the tape is wound up, a gap is created between the tape and the tray disk, so if the reel is positioned so that the tray disk is located on the lower side, the same displacement as that shown in FIG. 6 occurs. There is a problem.

In view of the above problems of the prior art, an object of the present invention is to improve the working efficiency of a lithium tape reel during packaging and use, and also to prevent discoloration, scratches, misalignment, etc. of the lithium tape. To prevent.

[0011]

[Means for Solving the Problems]

 In order to achieve this object, the reel for lithium tape of the present invention comprises a cylindrical portion around which the lithium tape is wound, a first disc-shaped member fixed to one end of the cylindrical portion, and the other end of the cylindrical portion. And a tray-shaped second disc-shaped member that is detachably fixed to face the first disc-shaped member and has a peripheral portion curved in the direction of the first disc-shaped member.

[0012]

[Action]

 In this structure, the lithium tape is wound around the cylindrical portion of the first disk-shaped member at the end opposite to the fixed end, and the second disk-shaped member is attached to the end. . Therefore, no gap is created between the wound lithium tape and the second disk-shaped member. The reel thus wound with the lithium tape is filled with an inert gas such as Ar gas in a packaging material such as a laminate sheet and packaged, and then transported. During transportation, the lithium tape is supported on the entire surface of the second disc-shaped member so that the second disc-shaped member faces downward. Therefore, even if there is vibration, there is no disturbance such as displacement of the tape.

Further, since the shape of the second disk-shaped member is a tray, and the bottom surface of the second disk-shaped member has no corners of the reels, even if the reels collide or rub against each other due to vibration during transportation, the laminated sheet It is less likely that pinholes will be opened in the packaging material such as guts, causing discoloration of the lithium tape. In addition, the peripheral portion of the tray-shaped second disk-shaped member prevents contact between the outermost tape and the packaging material and prevents scratches.

Further, when rewinding the lithium tape, the worker carries out the work without directly touching the lithium tape by supporting the lithium tape through the mutually fixed first disk-shaped member and cylindrical portion. . For this reason, the handling is facilitated especially when used in an argon box or the like.

[0015]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a lithium tape reel according to an embodiment of the present invention, and FIG. 2 is an assembly drawing thereof. As shown in these figures, the reel for lithium tape has a cylindrical portion 5 around which the lithium tape is wound, a first disc 6 fixed to one end of the cylindrical portion 5, and another end 10 of the cylindrical portion 5. A tray-shaped second disk 7 which is fixed to the first disk 6 so as to be detachably fixed and whose peripheral portion is curved in the direction of the first disk 6, a nut 8 fixed to the second disk 7, and a nut 8 And a bolt 9 for fixing the second disc 7 to the cylindrical portion 5 by being coupled to the. As shown in FIG. 3, it is preferable that the first disc 6 has a recess for receiving the head of the bolt 9 so that the protrusion does not occur after assembly.

When winding the lithium tape 2 using this reel, first, one end of the lithium tape 2 in the length direction is aligned with the end 10 of the cylindrical portion 5 and wound. After the winding of the lithium tape 2 is completed, the second disk 7 is placed on the end portion 10, and the bolt 9 is screwed to the nut 8 to fix the second disk 7 to the cylindrical portion 5. At this time, since the lithium tape 2 is supported by the entire surface of the second disk 7, there is no gap between the second disk 7 and the lithium tape 2.

According to this, even if vibration is applied at the time of transportation or the like, the wound lithium tape 2 will not be misaligned, wound, or disturbed. Also, when the trays are transported in such a posture that the second disk 7 is at the bottom, there is no corner of the reel at the bottom, so even if the reels collide or rub against each other due to vibration during transportation. , A pinhole is prevented from opening in a packaging material such as a laminated sheet, and the possibility that the lithium tape 2 is discolored is reduced. In addition, the curved peripheral portion of the second disk 7 prevents damage to the outermost periphery of the tape 2 due to contact with the packaging material.

On the other hand, when a battery is manufactured using the wound lithium tape 2, the bolt 9 is removed to remove the second disk 7 from the cylindrical portion 5, and then the first disk is supported to support the cylindrical portion 5. Lift the lithium tape that is wound around, and insert it into the rewind shaft. At this time, since the first disk 6 is fixed to the cylindrical portion 5 and the lithium tape is supported through the cylindrical portion 5 and the first disk 6, the operator does not have to touch the lithium tape 2 directly with his / her hands. It is easy to handle, especially when used in an argon box.

[0019]

[Effect of device]

 As described above, according to the present invention, it is possible to provide a reel for lithium tape which is easy to handle and has good working efficiency, and which does not cause discoloration, scratches, winding deviation, etc. of the lithium tape.

[Brief description of drawings]

FIG. 1 is a sectional view of a lithium tape reel according to an embodiment of the present invention.

FIG. 2 is an assembly diagram of the reel of FIG.

FIG. 3 is a sectional view of a lithium tape reel according to another embodiment of the present invention.

FIG. 4 is a front view and a side view of a lithium tape reel according to a conventional example.

FIG. 5 is a cross-sectional view of a lithium tape reel according to another conventional example.

FIG. 6 is a schematic diagram showing an example of winding deviation, winding, winding disorder, etc., which is caused by vibration during transportation when the reel of FIG. 4 is used.

[Explanation of symbols]

2: Lithium tape, 3, 5, 12: Cylindrical part, 4a, 4
b, 13, 15: disk, 6: first disk, 7: second disk, 8: nut, 9, 14: bolt.

Claims (1)

[Scope of utility model registration request] 1. A cylindrical portion around which a lithium tape is wound,
A first disc-shaped member fixed to one end of the cylindrical portion, and a first disc-shaped member fixed to the other end of the cylindrical portion so as to be detachably fixed so as to face the first disc-shaped member. A reel for lithium tape, comprising: a tray-shaped second disk-shaped member curved in a direction.