JPH08306362A - Insertion apparatus for rolled electrode construction body - Google Patents

Abstract

PURPOSE: To efficiently carry out the whole work of assembly of various kinds of batteries with different size with an extremely simple mechanism. CONSTITUTION: An insertion apparatus of a rolled electrode construction body is provided with a first supporting stand 16 to set a rolled electrode composing body 14, a second supporting stand 22 to set a can member 20, a pushing mechanism 24 to insert the rolled electrode composing body 14 in the can member 20, and a guiding mechanism 26 to coaxially position the rolled electrode composing body 14 and the can member 20 mutually at the time of insertion. The first and the second supporting stands 16, 22 support the outer circumferences of the rolled electrode construction body 14 and the can member 20 and at the same time have a first and a second V-shaped grooves 44, 52 with different height corresponding to the thickness of the can member 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding electrode structure inserting apparatus capable of inserting corresponding winding electrode structures into various cylindrical can members having different diameters.

[0002]

2. Description of the Related Art Conventionally, in a battery assembling operation, when a pre-wound spirally wound electrode structure is inserted into a cylindrical can member, a lead terminal projectingly formed on an end face of the spirally wound electrode structure. It was difficult to automate the work of inserting the spirally wound electrode structure due to the existence of.

For this reason, various devices have been proposed in order to automatically perform the above-mentioned insertion work.
An embedded device disclosed in Japanese Patent No. 22027 is known. In this built-in device, an index table provided with a plurality of holding jigs is intermittently rotated to wind the spiral electrode body (rolled electrode structure) at each station, bend the lead terminals, and The step of pushing the electrode body into the outer can (cylindrical can member) is sequentially performed, whereby the spiral electrode body is automatically incorporated into the outer can.

[0004]

However, in the above-mentioned prior art, since the spirally wound electrode body is wound and supported within the holding jig vertically provided on the index table,
The outer diameter of the spiral electrode body is restricted by the shape of the holding jig. Therefore, the battery incorporated by the above-mentioned embedded device is limited to a single size,
To support batteries of different sizes, all jigs including the holding jig must be replaced. As a result, a large number of jigs must be prepared for batteries of different sizes, and the number of parts increases and jig replacement work for batteries of each size takes a considerable amount of time. Has been done.

The present invention solves this kind of problem and provides a wound electrode structure which has an extremely simple structure and which can efficiently carry out the entire assembling work of various batteries having different sizes. An object is to provide an insertion device.

[0006]

In order to achieve the above-mentioned object, the present invention is an insertion device capable of inserting corresponding wound electrode structures into various cylindrical can members having different diameters. A first support table on which the wound electrode structure is mounted, a second support table on which the cylindrical can member is mounted, the wound electrode structure on the first support table, (2) A pressing mechanism that is inserted into the cylindrical can member on the support base, and a guide mechanism that positions the wound electrode structure and the cylindrical can member coaxially with each other when the wound electrode structure is inserted. ,
The first and second support bases support the spirally wound electrode structure and the outer peripheral portion of the cylindrical can member, and have different height positions according to the wall thickness of the cylindrical can member. It is characterized by having first and second V-shaped groove portions.

[0007]

In the insertion device for the wound electrode structure according to the present invention,
The spirally wound electrode structure is supported by the first V-shaped groove portion of the first support base, and the cylindrical can member is supported by the second V-shaped groove portion of the second support base, and is operated under the action of the pressing mechanism and the guide mechanism. A wound electrode structure is inserted into the can member. Here, even if the diameters of the spirally wound electrode structure and the can member are changed as the size of the battery is changed, the spirally wound electrode structure and the can member are supported by the first and second V-shaped groove portions and are relatively opposed to each other. Be positioned automatically. As a result, even if the diameters of the wound electrode structure and the can member differ from each other, they can be easily dealt with through the first and second support bases having the same structure, and the work such as jig replacement becomes unnecessary. Assembling work of various batteries having different sizes can be performed easily and efficiently.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The insertion device for a wound electrode structure according to the present invention will be described in detail below with reference to the accompanying drawings.

1 and 2, reference numeral 10
Shows the insertion device according to the first embodiment. The insertion device 10 is provided on the first index table 12 having a relatively large diameter at equal angular intervals, and the wound electrode structure 14 is provided.
A plurality of first support bases 16 for mounting the second support and a second support having a relatively small diameter.
A plurality of second support bases 2 provided on the index table 18 at equal angular intervals and on which the cylindrical can members 20 are mounted.
2, a pressing mechanism 24 for inserting the spirally wound electrode structure 14 into the can member 20 at the insertion position IS, and the spirally wound electrode structure 14 and the can member 20 are coaxially positioned with each other during the inserting operation. And a guide mechanism 26 for

As shown in FIG. 1, around the first index table 12, a supply position 28 for supplying the winding electrode structure 14 to the first supporting base 16 and the winding position on the first supporting base 16. The supply position 32 for supplying the lower insulating plate 30 to the spirally wound electrode structure 14 and the negative electrode lead 1 of the spirally wound electrode structure 14.
A bending position 34 for bending 5a is provided.

As shown in FIG. 2, the axis of the second index table 18 is an angle θ (for example, 45) with respect to the vertical axis V on the turning axis side of the first index table 12.
°) It is inclined. This second index table 18
A supply position 36 for supplying the can member 20 to the second support 22 and a carry-out mechanism 38 for ejecting the can member 20 into which the spirally wound electrode structure 14 has been inserted are provided around the.

As shown in FIG. 2, a block body 40 is fixed on the first index table 12, and the upper side of the block body 40 is angled upward toward the second index table 18 side with respect to the horizontal direction. θ (for example, 45
) The rail member 42 is provided so as to be inclined. The first support base 16 is mounted on the rail member 42 so as to be movable back and forth within a predetermined range in the arrow X direction.

The first support base 16 has a V-block shape, and a first V-shaped groove portion 44 for supporting the outer peripheral portion of the spirally wound electrode structure 14 is formed on the upper side thereof. This first
The inclined surfaces 46a and 46b forming the V-shaped groove portion 44 have a predetermined opening angle, for example, an opening angle of 90 °. Locking plates 48a and 48b are provided on the first support base 16 on the side of the positive electrode lead 15b of the spirally wound electrode structure 14, and the end face of the first support base 16 is provided with the first support. A tension spring 50 for pulling the table 16 toward the center of the first index table 12 is engaged.

The second support base 22 is fixed on the second index table 18, and a second V-shaped groove portion 52 for mounting the can member 20 is formed on the upper portion thereof. The inclined surfaces 54a and 54b forming the second V-shaped groove portion 52 have a predetermined opening angle, for example, an opening angle of 90 °.

As shown in FIGS. 3 and 4, the first V-shaped groove portion 44 of the first support base 16 is located above the second V-shaped groove portion 52 of the second support base 22 by a height H. The height H is set according to the wall thickness of the can member 20, and for example, the wall thickness of the can member 20 is t and the opening angle is φ.
Then, H = t / sin φ.

On the upper portion of the second support base 22, a locking plate 5 for supporting the bottom portion of the can member 20 placed in the second V-shaped groove portion 52.
6 is provided, and a magnet 58 for attracting and holding the can member 20 is planted (see FIG. 2).

The pressing mechanism 24 includes a first pressing member 60 that presses the first support base 16 toward the second support base 22 by a cylinder or cam mechanism (not shown), and a winding electrode structure 14 by a cylinder or cam mechanism (not shown). And a second pressing member 62 for pressing into the can member 20.

The guide mechanism 26 is disposed at the insertion position IS, and is provided between the first and second supporting bases 16 and 22, and the guide member 64, and the winding electrode structure 14 is provided. And a holding means 66 for holding it so as to be movable back and forth in the pressing direction (direction of arrow X).

The holding means 66 is provided with a column 68 standing upright between the first and second index tables 12 and 18, and a rail member 70 extending in the arrow X direction is provided on the column 68, and this rail is provided. A slide member 72 is supported on the member 70 so as to be movable back and forth within a predetermined range. The slide member 72 is constantly pulled toward the first support base 16 via a tension spring 74, and the guide member 64 is detachably screwed to the slide member 72.

The guide member 64 has a through hole 76 corresponding to the outer diameter of the spirally wound electrode structure 14. This through hole 7
As shown in FIG. 3, the reference numeral 6 indicates that the first guide taper 78 communicates with the spirally wound electrode structure 14 side, while the first guide taper 78 is provided on the can member 20 side through a step 80 abutting the can member 20. 2 The taper 82 communicates.

The guide mechanism 26 and the second support base 22 are provided with stopper means 8 for preventing the wound electrode structure 14 inserted in the can member 20 from coming off the can member 20.
4 are provided. The stopper means 84 is shown in FIGS.
As shown in, the cam portion 8 formed on the slide member 72
6 and a stopper portion 88 which is arranged on the second support base 22 so as to be able to move up and down via a spring (not shown) and projects toward the opening side of the can member 20. The stopper portion 88 has the cam portion 86.
A cam floor 90 that engages with is provided.

The operation of the insertion device 10 thus constructed will be described below.

First, as shown in FIG. 1, the spirally wound electrode structure 14 is aligned at the supply position 28. Although not shown, the spirally wound electrode structure 14 is formed by preliminarily winding a strip-shaped positive and negative electrode plate with a separator interposed therebetween and fixing them with a tape. The positive electrode lead 15b and the negative electrode lead 1 are provided on both end faces.
The protrusion 5a is formed.

Therefore, each winding electrode structure 14 is arranged at the supply position 28 so that the negative electrode lead 15a is located on the upper surface, and this winding electrode structure 14 is placed on the first support base 16. At the same time, the first index table 12 is intermittently rotated in the direction of the arrow, and the wound electrode structure 14 on the first support 16 is arranged at the supply position 32. Here, under the action of a robot (not shown), the lower insulating plate 30
Is placed on the negative electrode lead 15a side of the spirally wound electrode structure 14 and is then transferred to the bending position 34 so that the negative electrode lead 1
5a is a lower insulating plate 30 by a roller or the like not shown.
It can be bent so as to sandwich.

On the other hand, the can member 20 has the second position at the supply position 36.
After being mounted on the support base 22, the second index table 18 is intermittently rotated in the arrow direction.

Next, the first supporting base 16 on which the spirally wound electrode structure 14 is mounted and the second supporting base 2 on which the can member 20 is mounted.
When 2 is arranged at the insertion position IS (see FIGS. 2 and 5), the first pressing member 60 forming the pressing mechanism 24 is driven. Therefore, the first support 16 moves to the guide mechanism 26 side along the rail member 42 under the pressing action of the first pressing member 60, and the slide member 7 constituting the guide mechanism 26.
2 is pressed toward the second support base 22 side.

When the slide member 72 moves toward the second support base 22, the cam portion 8 provided on the slide member 72 is moved.
6 engages with the cam floor 90 and presses the stopper portion 88 downward against a spring (not shown). Therefore, the stopper portion 88 is detached downward from the opening side of the can member 20.

Further, the slide member 72 is used as the second support base 2.
When moved to the 2 side, the open end of the can member 20 is guided by the second taper 82 of the guide member 64, and the open end contacts the step 80 (see FIG. 6).

Next, the second pressing member 62 constituting the pressing mechanism 24 is driven, and the first pressing member 62 makes the first pressing member 62.
The spirally wound electrode structure 14 on the support 16 is smoothly inserted into the through hole 76 of the guide member 64 constituting the guide mechanism 26 under the guiding action of the first taper 78. As a result, the spirally wound electrode structure 14 and the can member 20 are accurately positioned on the insertion axis S, and the spirally wound electrode structure 14 is accurately pushed into the can member 20. At that time, as shown in FIG. 7, a predetermined gap L is formed between the bottom of the spirally wound electrode structure 14, that is, between the lower insulating plate 30 and the bottom of the can member 20.

Then, when the first pressing member 60 retracts,
The first support 16 and the slide member 72 are the tension springs 5.
It moves rearward from the second support base 22 via 0 and 74.
When the slide member 72 retracts, the cam portion 86 separates from the cam floor 90 and the stopper portion 88 projects toward the opening portion side of the can member 20. Therefore, the spirally wound electrode structure 14 inserted into the can member 20 is prevented from coming off the can member 20.

Further, the second pressing member 62 retracts, and the work of inserting the spirally wound electrode structure 14 into the can member 20 is completed (see FIG. 8). After that, the second index table 18
The inserted can member 20 indexed to the carry-out mechanism 38 side by the rotation of is taken out from the second support base 22 to the carry-out mechanism 38 side via a transfer mechanism (not shown), and its opening is directed upward. It is transferred to the next process in the closed state (Fig. 1
reference).

By the way, the insertion device 10 can easily cope with assembling various batteries having different sizes. For example, the wound electrode structure 14 and the can member 2
When assembling a battery having a diameter smaller than that of the battery including 0, the wound electrode structure 14 a and the can member 2 having a diameter considerably smaller than the wound electrode structure 14 and the can member 20.
0a is used (see FIGS. 9 and 10).

Therefore, as a preparatory work, the guide member 64 is used.
Will be replaced. The guide member 64 has a through hole 76 corresponding to the relatively large diameter wound electrode structure 14, and is removed from the slide member 72. And
Newly assembled relatively small-diameter wound electrode structure 14
Guide member 64 provided with through hole 76a corresponding to a
Screw a to the slide member 72.

Next, at the supply position 28, the work of mounting the new wound electrode structure 14a on the first support base 16 is performed, while at the supply position 36, the new can member 20a is mounted on the second support base 22. Work is done. Further, the work of inserting the spirally wound electrode structure 14a into the can member 20a is automatically performed as with the spirally wound electrode structure 14 and the can member 20 described above.

That is, in the first embodiment, the first V-shaped groove portion 44 for mounting the spirally wound electrode structure 14 on the first support 16 is formed.
And a second V-shaped groove portion 52 on which the can member 20 is placed is provided on the second support base 22. And
The first V-shaped groove portion 44 extends from the second V-shaped groove portion 52 to the can member 20.
The height H is set so as to be spaced apart upward in correspondence with the thickness of the. For this reason, when the spirally wound electrode structure 14 and the can member 20 having a relatively large diameter are placed in the first and second V-shaped groove portions 44, 52, and when the spirally wound electrode structure 14a and the can member 20a have a relatively small diameter. In the case of mounting, although the height position of each insertion axis S is different, the relative positional relationship is always the same.

As a result, in the first embodiment, even when the size of the assembled battery is changed variously, the guide member 64 corresponding to the size of the battery is attached to the slide member 72.
It is only necessary to attach and detach to the first and second
The supports 16 and 22 can be commonly used. Therefore, the preparation work associated with the battery size switching can be easily and quickly performed at one time, productivity can be improved, and there is no need to prepare dedicated jigs corresponding to each size, which is economical. The effect that there is is obtained.

Next, FIG. 11 shows the main part of the insertion device 100 according to the second embodiment. This insertion device 10
In addition to adopting the same configuration as the insertion device 10 according to the first embodiment, 0 has a holding means 10 for pressing and holding the spirally wound electrode structure 14 and the lower insulating plate 30 on the first supporting base 16.
2 is provided. The holding means 102 has a block body 104 having a predetermined shape.
Is configured to be movable up and down via an actuator (not shown).

In the second embodiment, the block body 104 constituting the holding means 102 presses and holds the spirally wound electrode structure 14 and the lower insulating plate 30 on the first supporting base 16. Therefore, the spirally wound electrode structure 1 is affected by the acceleration, centrifugal force and the like during the intermittent rotation of the first index table 12.
There is an advantage that it is possible to more reliably prevent the fourth insulating plate 30 and the lower insulating plate 30 from coming off the first supporting base 16.

Further, FIG. 12 shows a main part of the insertion device 110 according to the third embodiment. This insertion device 1
10 has a guide mechanism 112 instead of the guide mechanism 26 that constitutes the insertion device 10 according to the first embodiment. The guide mechanism 112 includes, for example, a guide member 120 in which three through holes 114, 116 and 118 having different diameters are formed, a holding means 66 for holding the guide member 120 so as to be movable back and forth in the arrow X direction, and the guide. Positioning means 122 for moving the member 120 forward and backward in the arrow Z direction intersecting the arrow X direction.

The positioning means 122 has a rail member 124 extending in the arrow Z direction, and a movable support column 126 mounted on the rail member 124 and moving forward and backward in the arrow Z direction by a pulse motor, a cylinder or the like (not shown). Guide member 1
20 has a plate shape and has three through holes 114, 11
6 and 118 are formed to have a small diameter and a low height.

In the third embodiment, when the diameters of the spirally wound electrode structure 14 and the can member 20 are variously changed, the positioning means 122 is driven and the movable column 126 is moved to the rail member 12.
4, the through hole 114, 116 or 118 of the guide member 120 is positioned corresponding to the insertion axis S. As a result, the positioning work of the guide member 120 is also automated, and when the size of the assembled battery is changed, the preparatory work can be performed more automatically and quickly.

Since the inner diameter of the can member 20 becomes larger as the diameter of the can member 20 becomes larger, the can member 20 becomes larger.
When the diameter of is larger than a predetermined value, the wall thickness may be increased. At that time, as shown in FIG.
The opening angle of the first V-shaped groove portion 44 of the first support base 16 may be set in multiple stages.

That is, in the range where the wall thickness of the can member 20 is not changed, the first angle having an opening angle of φ ₁ = 90 °
After the inclined surfaces 130a and 130b are provided up to a predetermined height D, the angle φ is increased in accordance with the increase in the wall thickness of the can member 20.
_{A second} inclined surface 132a having an opening angle of ₂ (<φ ₁ ),
132b is provided. Accordingly, the wound electrode structure 14 can be accurately positioned according to the change in the wall thickness of the can member 20.

Further, in the first to third embodiments, the locking plate 56 is provided on the second support base 22, but as shown in FIG. 14, at the end portion of the second support base 22, The locking portion 134 protruding upward can be integrally formed.

[0045]

INDUSTRIAL APPLICABILITY As described above, the insertion device for a wound electrode structure according to the present invention has the following effects and advantages.

Since the spirally wound electrode structure is supported by the first V-shaped groove portion of the first support base and the cylindrical can member is supported by the second V-shaped groove portion of the second support base, the spirally wound electrode structure body is supported. Even if the diameter of the can member is variously changed, the wound electrode structure and the can member are relatively positioned. As a result, even if the diameters of the wound electrode structure and the can member differ from each other, they can be easily dealt with through the first and second support bases having the same structure, and the work such as jig replacement becomes unnecessary. hand,
Assembling work of various batteries having different sizes is easily and efficiently performed.

[Brief description of drawings]

FIG. 1 is a plan view showing a schematic configuration of an insertion device according to the present invention.

FIG. 2 is a perspective view of a main part of the insertion device according to the first embodiment.

FIG. 3 is a side view of the insertion device.

FIG. 4 is a front view illustrating a support base that constitutes the insertion device.

FIG. 5 is an explanatory diagram showing a state where a spirally wound electrode structure and a can member face each other.

FIG. 6 is an explanatory view of a state where the first support base is pressed by the pressing mechanism.

FIG. 7 is an explanatory diagram showing a state where the spirally wound electrode structure is pressed into the can member by a pressing mechanism.

FIG. 8 is an explanatory diagram of a state where the pressing mechanism is retracted after the pressing is finished.

FIG. 9 is a vertical sectional side view of an electrode structure having a relatively small diameter and a can member.

10 is a front explanatory view of the can member of FIG.

FIG. 11 is a perspective view of a main part of the insertion device according to the second embodiment.

FIG. 12 is a perspective view of a main part of the insertion device according to the third embodiment.

FIG. 13 is an explanatory diagram of a modified example of the first support base.

FIG. 14 is a side view illustrating another configuration of the second support base.

[Explanation of symbols]

10, 100, 110 ... Inserting device 12, 18 ... Index table 14, 14a ... Winding electrode structure 16, 22 ... Support base 20, 20a ... Can member 24 ... Pressing mechanism 26, 112 ... Guide mechanism 40, 104 ...
Block body 42, 124 ... Rail member 44, 52 ... V
Shaped grooves 46a, 46b, 54a, 54b ... Inclined surfaces 50, 74 ... Tensile springs 60, 62 ... Pressing members 64, 64a, 120 ... Guide members 66, 102 ...
Holding means 72 ... Sliding members 76, 76a, 114, 116, 118 ... Through holes 78, 82 ... Taper 80 ... Step portion 84 ... Stopper means 122 ... Positioning means 130a, 130b, 132a, 132b ... Inclined surface

Claims (7)

[Claims] 1. An insertion device capable of inserting corresponding spirally wound electrode structures into various cylindrical can members having different diameters, the first supporting table having the spirally wound electrode structures mounted thereon. A second supporting base on which the cylindrical can member is mounted, and a pressing mechanism for inserting the wound electrode structure on the first supporting base into the cylindrical can member on the second supporting base. A guide mechanism for positioning the wound electrode structure and the cylindrical can member coaxially with each other when the wound electrode structure is inserted, wherein the first and second support bases are the wound coils. A spirally wound electrode that supports the electrode structure and the outer peripheral portion of the cylindrical can member, and has first and second V-shaped groove portions having different height positions according to the thickness of the cylindrical can member. Structure insertion device. 2. The insertion device according to claim 1, wherein the guide mechanism is disposed between the first and second support bases,
A guide member in which one or more through holes corresponding to the outer diameter of the spirally wound electrode structure are formed; and a holding means for holding the guide member so as to be movable back and forth in the pressing direction of the spirally wound electrode structure. An apparatus for inserting a spirally wound electrode structure, comprising: 3. The insertion device according to claim 2, wherein the guide member has a through hole in which the first guiding taper communicates with the spirally wound electrode structure, and the cylindrical can member has the cylindrical can. An apparatus for inserting a wound electrode structure, wherein a second guide taper communicates with a stepped portion that supports an end portion of the member. 4. The insertion device according to claim 2 or 3, wherein the guide mechanism positions a predetermined through hole in an axial direction of the wound electrode structure corresponding to an outer diameter of the wound electrode structure. In order to achieve the above, the winding electrode structure insertion device is provided with a positioning means for moving the guide member forward and backward in a direction intersecting a pressing direction of the spirally wound electrode structure. 5. The insertion device according to claim 1, wherein the wound electrode structure inserted into the cylindrical can member is detached from the cylindrical can member on the side of the second support base. A device for inserting a wound electrode structure, characterized in that stopper means for blocking is provided. 6. The insertion device according to claim 1, wherein the first V-shaped groove portion of the first support base corresponds to a change in outer diameter and wall thickness of the cylindrical can member, and An insertion device for a spirally wound electrode structure, wherein the opening angle is set in multiple stages to adjust the height position. 7. The insertion device according to claim 1, wherein a plurality of the first and second supports are provided on the rotatable first and second tables, respectively, and at the insertion position of the wound electrode structure. An apparatus for inserting a spirally wound electrode structure, wherein an axis of the spirally wound electrode structure is inclined upward toward the cylindrical can member side.