JPH11316116A - Sticking position detecting method device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely detect a sticking position of an insulation member to a conductive member even when the insulation member is composed of a transparent material. SOLUTION: This sticking position detecting device 200 detects sticking position of a transparent insulation tape 64 to a positive electrode lead 26 in a component of a battery applied with the tape 64 to the positive electrode lead 26. The detecting device 200 is provided with a conductive base 220 for mounting the positive electrode lead 26 applied with the insulation tape 64, and a detection head 224 having the first - fourth contacts 222A-222D held to be movable in an advancing and separating direction with respect to the base 220, and the applied position of the insulation tape 64 is detected through a controller 262, base on detection patterns (ON operation condition and OFF operation condition) from the contacts 222A-222D in the detection head 224.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for detecting an attachment position of an insulating member on an object to be measured in which an insulating member is attached to the conductive member. The present invention relates to a sticking position detecting method and a device suitable for detecting the position of a transparent adhesive tape stuck to a band-shaped metal foil.

[0002]

2. Description of the Related Art In a manufacturing process of a product, when a component having an insulating member attached to a conductive member is used as a component, a position where the insulating member is attached to the conductive member in the component is a regular position. There is a case where a process is performed in which it is confirmed whether or not the normal product having the insulating member attached to the proper position is transported to the next process.

In the measurement of the sticking position, usually, a light detecting device such as a reflection type photosensor is used, and the sticking position is accurately detected by, for example, shaping the waveform of a level change of a detection signal from the light detecting device. Like that.

[0004]

However, when the insulating member is made of an opaque material, the method of measuring the attachment position using a photodetector such as a reflection type photosensor is effective. When the insulating member is made of a material having transparency, there is a problem that detection accuracy in the photodetector becomes unstable and erroneous detection increases.

Therefore, when the insulating member has transparency, the present situation is that the presence or absence of the attachment of the insulating member is detected and the position where the insulating member is attached is not detected.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and even when the insulating member is made of a transparent material, it is possible to accurately detect the position where the insulating member is attached to the conductive member. An object of the present invention is to provide a method for detecting a sticking position.

Another object of the present invention is to provide a sticking position detecting method capable of accurately detecting a sticking position of an insulating member with respect to a conductive member even if the insulating member is made of a transparent material. It is another object of the present invention to provide a sticking position detecting device which can be realized in the following manner.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a method for detecting the position of an insulating member on an object to be measured in which an insulating member is attached to the conductive member. An object is placed on a conductive base, and a plurality of contacts held so as to be able to contact and separate from the base are brought into contact with the object to be measured placed on the base, and the plurality of contacts are provided. A position where the insulating member is attached to the conductive member is detected based on a detection pattern from a child.

As a result, first, a conductive member having an insulating member attached to a part thereof is placed on a base. After that, by bringing the plurality of contacts into contact with the object to be measured, a current flows through the contact of the plurality of contacts that has contacted the conductive member,
A phenomenon occurs in which no current flows through the contact that has contacted the insulating member.

When the case where current flows through the contacts is referred to as an ON operation, and the case where no current flows through the contacts is referred to as an OFF operation, the pattern of the ON operation and the OFF operation (that is, the detection pattern) indicates that the insulating member with respect to the conductive member. The sticking position will be accurately detected.

As described above, in the sticking position detecting method according to the present invention, even if the insulating member is made of a material having transparency, the sticking position of the insulating member with respect to the conductive member can be accurately detected.

In the above method, when a boundary line formed by the insulating member and the conductive member when the insulating member is properly bonded to the conductive member is defined as an attachment reference line, the plurality of contact points are defined. Among the contacts, at least one contact is arranged at a position closer to the insulating member than the attachment reference line, and at least one other contact is arranged at a position closer to the conductive member than the attachment reference line. Then, the position where the insulating member is attached to the conductive member may be detected.

[0013] In this case, when a plurality of contacts are brought into contact with the actual object to be measured, the number of contacts located, for example, on the insulating member side of the sticking reference line can be easily grasped from the detection pattern. The position where the insulating member is attached to the object to be measured can be accurately detected based on the attachment reference line.

Further, in the above method, the two boundary lines formed by the insulating member and the conductive member when the insulating member is properly bonded to the conductive member are defined as first and second bonding reference lines. When defined, the four contacts are arranged,
Of the four contacts, the first contact is the first contact
At a position closer to the conductive member than the sticking reference line of
A third contact is arranged at a position closer to the insulating member than the first attaching reference line, and a third contact is arranged at a position closer to the insulating member than the second attaching reference line. A fourth contact may be arranged at a position closer to the conductive member than the second bonding reference line to detect a position at which the insulating member is bonded to the conductive member.

In this case, according to the detection patterns from the four contacts, how much the actual position of the insulating member on the DUT is shifted from the first and second reference lines, and It is possible to accurately detect whether the member is normally attached.

The above method is also suitable when the conductive member is a strip-shaped metal foil and the insulating member is a transparent adhesive tape, and the transparent adhesive tape attached to the metal foil is attached. The position can be accurately detected.

This leads to accurate judgment of the quality of a product having a metal foil to which a transparent pressure-sensitive adhesive tape is attached as a constituent member, which leads to the accuracy of the manufacturing process. , Product yield, and supply of reliable products to the market.

Next, the present invention relates to a sticking position detecting device for detecting a sticking position of the insulating member with respect to the conductive member in the object to be measured in which the insulating member is stuck to the conductive member. A conductive base to be placed, and a detection head having a plurality of contacts held so as to be able to contact and separate from the base, based on detection patterns from the plurality of contacts in the detection head. Thus, the position where the insulating member is attached to the conductive member is detected.

Thus, first, at the stage where the conductive member having the insulating member affixed partially is mounted on the base, the detection head moves in the direction approaching the object to be measured. Are in contact with the object to be measured. At this time, a phenomenon occurs in which the current flows through the contact that contacts the conductive member among the plurality of contacts, and does not flow through the contact that contacts the insulating member.

When the case where a current flows through the contact is an ON operation, and the case where no current flows through the contact is an OFF operation, the pattern of the ON operation and the OFF operation (that is, the detection pattern) indicates that the insulating member with respect to the conductive member. The sticking position will be accurately detected.

Thus, in the sticking position detecting device according to the present invention, even if the insulating member is made of a transparent material, the sticking position of the insulating member with respect to the conductive member can be accurately detected. The sticking position detecting method according to the present invention can be easily realized.

In the above configuration, when a boundary line formed by the insulating member and the conductive member when the insulating member is properly bonded to the conductive member is defined as an attachment reference line, At least one contact among a plurality of contacts arranged is arranged at a position closer to the insulating member than the sticking reference line, and at least one other contact is more than the sticking reference line. It may be arranged at a position on the conductive member side.

In this case, when a plurality of contacts are brought into contact with the actual object to be measured, the number of contacts located, for example, on the insulating member side with respect to the sticking reference line can be easily grasped from the detection pattern. The position where the insulating member is attached to the object to be measured can be accurately detected based on the attachment reference line.

Further, in the above structure, two boundary lines formed by the insulating member and the conductive member when the insulating member is properly bonded to the conductive member are defined as first and second sticking reference lines. When defined, four contacts are arranged on the detection head, and a first one of the four contacts is arranged at a position closer to the conductive member than the first attachment reference line. A second contact is disposed at a position closer to the insulating member than the first bonding reference line, and a third contact is positioned at the insulating member side relative to the second bonding reference line. And the fourth contact may be arranged at a position closer to the conductive member than the second attachment reference line.

In this case, according to the detection patterns from the four contacts, how much the actual position of the insulating member on the DUT is shifted from the first and second bonding reference lines, and It is possible to accurately detect whether the member is normally attached.

In the above structure, the conductive member may be a band-shaped metal foil, and the insulating member may be a transparent adhesive tape. In this case, it is possible to accurately detect the position where the transparent adhesive tape attached to the metal foil is attached.
This leads to being able to accurately determine the quality of a product having a metal foil to which a transparent pressure-sensitive adhesive tape is attached as a constituent member. , And the supply of reliable products to the market can be realized.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a method and an apparatus for detecting a sticking position according to the present invention will be described by detecting a sticking position of the adhesive tape after sticking a transparent adhesive tape to a positive electrode lead in a battery winding process. FIG. 1 shows an embodiment applied to
This will be described with reference to FIG.

Before describing a sticking position detecting method (apparatus) according to this embodiment, a winding apparatus 10 for performing a battery winding process will be described with reference to FIGS.

As shown in FIG. 1, this winding device 10
A positive electrode supply unit 16 to which a positive electrode roll 14 in which the positive electrode plate 12 is formed in a roll shape is mounted;
A negative electrode supply unit 24 to which a negative electrode roll 22 having a roll shape of 0 is attached; a positive electrode lead welding unit 28 for welding a positive electrode lead 26 to the positive electrode plate 12 fed from the positive electrode supply unit 16; A negative electrode lead welding portion 34 for welding a negative electrode lead 32 to the negative electrode plate 20 fed from the negative electrode supply portion 24; a positive electrode plate 12 and the negative electrode plate; 20 to the first and second separators 36a, 36
b, a winding portion 38 integrally wound therewith, a positive plate cutting portion 40 and a negative plate cutting portion 42 for cutting the positive electrode plate 12 and the negative electrode plate 20 at predetermined lengths, respectively,
A separator cutting section 44 for cutting the first and second separators 36a and 36b into predetermined lengths, a transport section 48 for taking out and transporting the wound body 46 obtained by the winding section 38; And an apparatus main body 50 to be integrally mounted.

The active material is intermittently applied to the positive electrode plate 12 at regular intervals on a hoop-shaped electrode support. The negative electrode plate 20
Similarly, the active material is intermittently applied to the hoop-shaped electrode support at regular intervals, and strip-shaped lithium foils (not shown) are attached at predetermined intervals. As shown in FIG. 2, a wound body 46 in which the positive electrode plate 12 and the negative electrode plate 20 are wound with first and second separators 36a and 36b interposed therebetween.
Is stopped at its end by a tape 52.

As shown in FIG. 1, the positive electrode supply section 16 includes a positive electrode delivery shaft 54 for mounting the positive electrode roll 14 and feeding out the positive electrode plate 12. The positive electrode plate 12 moves along a predetermined path through a plurality of pass rollers 55. Along the positive electrode lead welding portion 28 side. In the positive electrode lead welding portion 28, the positive electrode lead 2
6 is mounted in the form of a lead roll 56, and a cutting machine 58 for cutting the positive electrode lead 26 sent out from the lead roll 56 into predetermined lengths, and connecting the cut positive electrode lead 26 to the positive electrode plate 12. A welding machine 60 for welding at a predetermined position is sequentially arranged in a direction intersecting the transport direction of the positive electrode plate 12 (the direction of arrow A).

An insulating tape sticking machine 62 is arranged near the positive electrode lead welding portion 28. Insulating tape sticking machine 62
Is the positive electrode lead 26 fed from the lead roll 56.
And has a function of attaching an insulating tape 64 to a part of the positive electrode lead 26 to cover a part of the positive electrode lead 26. Also, the insulating tape attaching machine 62 has an attaching position detecting device 20 according to the present embodiment.
0 is provided. Details of the sticking position detecting device 200 will be described later.

As shown in FIG. 3, the positive plate cutting section 40
A cutting blade 66 for cutting the positive electrode plate 12 on the upstream side of the winding portion 38, and a cutting portion detecting means 6 disposed upstream of the cutting blade 66 for detecting a coating boundary portion of the positive electrode plate 12.
8, a counting unit (counting means) 70 for sending the coating boundary portion to a position corresponding to the cutting blade 66 based on the detection information after the application boundary portion is detected by the cutting site detection unit 68; Is provided.

The counting section 70 is connected to the control circuit 72 and is configured to count, for example, the number of pulses of a pulse motor (not shown) for driving a roller 76 constituting the positive plate transport means 74. Is done. A nip roller 78 is slidably disposed on the roller 76.

The positive electrode plate 12 side is configured as described above, and the negative electrode plate 20 side configured similarly to the positive electrode plate 12 side has the same components as the positive electrode plate 12 side. And the detailed description thereof is omitted.

The slip sheet winding section 30 provided only on the negative electrode plate 20 side has a slip sheet winding shaft 80 for winding the slip sheet 18 from the negative electrode supply section 24 with a predetermined torque. FIG.
As shown in (2), a negative electrode plate transporting means 82 is provided near the negative electrode plate cutting section 42. The negative electrode plate conveying means 82 has a pair of chuck members 84 which can grip the negative electrode plate 20 and linearly advance and retreat with respect to the winding portion 38, and this chuck member 84 is attached to the negative electrode plate 20. In order to prevent the attached metal lithium foil (not shown) from adhering,
It is made of a predetermined material, for example, high molecular weight polyethylene.

As shown in FIG. 1, the first and second separators 36a and 36b are mounted on first and second separator delivery shafts 86a and 86b as first and second separator rolls 88a and 88b. Separator transporting means 92a, 92b having a plurality of pass rollers 90a, 90b are arranged on the feeding side of the first and second separators 36a, 36b.

As shown in FIG.
Has a cutting blade 94. The cutting blade 94 is configured such that the positive electrode plate 12 and the negative electrode plate 20 each cut to a predetermined length are not in contact with each other, and the first and second separators 36a,
After being wound with the 36b interposed, it has a function of cutting the first and second separators 36a and 36b.

As shown in FIG. 3, the winding portion 38 has an arrow C
An index table 96 that rotates by 90 ° in each direction is provided. The index table 96 includes first to fourth winding units 1 having first and second winding shafts 98 and 100.
02a to 102d are provided. The first and second winding shafts 98 and 100 are configured to be rotatable integrally and to be able to advance and retreat in the axial direction.

At each stop position of the index table 96, the positive electrode plate 12 and the negative electrode plate 20 are inserted between the first and second winding shafts 98 and 100 with the first and second separators 36a and 36b interposed. Station ST for loading
1, after cutting the first and second separators 36a and 36b of the wound body 46 which has been rotated while being rotated 90 ° from the insertion station ST1, and holding the wound end portion with a tape 52 Station S to do
T2, a quality inspection station ST3 for inspecting the quality of the winding stop, and a take-out station ST4 for sending the wound body 46 to the transport unit 48 are provided. The transport unit 48 includes a conveyor 104, on which the wound bodies 46 are arranged at predetermined intervals, and sent out to the next step.

The operation of the winding device 10 configured as described above will be described. First, as shown in FIG. 1, a positive electrode roll 14 and a negative electrode roll 22 are mounted on the positive electrode supply unit 16 and the negative electrode supply unit 24, respectively.
4 is rotated, the positive electrode roll 12 is removed from the positive electrode roll 14.
Is delivered.

The positive electrode plate 12 is sent to the positive electrode lead welding section 28 under the guiding action of the pass roller 55. On the other hand, the positive electrode lead 26 fed out from the lead roll 56 is sent to an insulating tape attaching machine on the way, and an insulating tape 64 is attached to the positive electrode lead 26 so as to cover a predetermined portion of the positive electrode lead 26.

In the positive electrode lead welding portion 28, after the positive electrode lead 26 to which the insulating tape 64 is attached is cut by a cutting machine 58 at predetermined lengths, the positive electrode lead 26 is connected to the positive electrode lead via a welding machine 60. It is welded to a predetermined position on the plate 12.

Next, the positive electrode plate 12 is cut into the positive electrode plate cutting portion 40.
First, the application boundary portion of the positive electrode plate 12 is detected by the cut portion detection means 68 as shown in FIG. Then, the positive electrode plate 12 is transferred to the winding part 38 side via the positive electrode plate conveying means 74 under the driving action of a pulse motor (not shown), and the number of pulses of this pulse motor is counted by the counting part 70. In the control circuit 72, when a predetermined number of pulses are counted by the counting unit 70 based on the detection signal from the cutting site detecting means 68, the transport of the positive electrode plate 12 is stopped and the cutting blade 66 is driven. . As a result, the positive electrode plate 12 is accurately cut into a predetermined length.

On the other hand, in the negative electrode supply section 24, the interleaf take-up shaft 80 is rotated in the direction of the arrow in FIG.
The interleaf 18 that has been integrally wound around the negative electrode roll 22
Is wound on the interleaf take-up unit 30 side, and only the negative electrode plate 20 is conveyed to the negative electrode lead welding unit 34 side.

At the negative electrode lead welding portion 34, after the negative electrode lead 32 having a predetermined length is cut, the negative electrode lead 32 is welded to a predetermined portion of the negative electrode plate 20. An insulating tape 64 is attached to a predetermined portion of the negative electrode lead 32, and the negative electrode plate 20 is conveyed to the negative electrode plate cutting section 42 side.

In the negative electrode plate cutting section 42, the negative electrode plate conveying means 8
The negative electrode plate 20 is transferred to the winding part 38 side by the linear movement of the chuck member 84 constituting the second member.
At this time, when the application boundary portion of the negative electrode plate 20 is detected via the cut portion detection means 68, the number of pulses of a pulse motor (not shown) is counted from that point. Next, when the number of pulses reaches a preset number of pulses, the transport of the negative electrode plate 20 is stopped, and the cutting blade 66 cuts the negative electrode plate 20.

The first and second separators 36a,
36b is a first and second separator delivery shaft 86
a and 86b, are fed from the first and second separator rolls 88a and 88b, and are conveyed to the winding unit 38 via separator conveying means 92a and 92b. In the winding section 38, as shown in FIG.
1, the second separator 36b, the negative electrode plate 2
0, the first separator 36a and the positive electrode plate 12 are inserted between the first and second winding shafts 98 and 100 constituting the first winding means 102a in a state of being stacked in this order.

Next, the index table 96 is rotated by 90 ° in the direction of arrow C in FIG.
The winding means 102a rotates, and the first winding means 102a
The positive electrode plate 12 and the negative electrode plate 20 are wound around the outer circumferences of the first and second winding shafts 98, 100 constituting the first and second winding shafts with the first and second separators 36a, 36b interposed therebetween, and are arranged at the winding stop station ST2. . In the winding stop station ST2, the cutting blade 9 constituting the separator cutting portion 44
4 is driven to drive the first and second separators 36a and 36a.
After b is cut, the cut end is stopped via the tape 52, and the wound body 46 is obtained.

Further, when the index table 96 is rotated by 90 ° in the direction of arrow C and the wound body 46 is disposed at the pass / fail inspection station ST3, the stopped state of the wound body 46 is inspected. The wound body 46 after the inspection is arranged in the take-out station ST4 under the rotation of the index table 96. This removal station ST
4, the winding body 46 includes the first and second winding shafts 98, 10
Those that are removed from 0 and are determined to be non-defective are sent out onto the conveyor 104 of the transport unit 48. The transport unit 48 transports the wound body 46 to the next step at a predetermined interval.

Incidentally, the insulating tape sticking machine 62 is the same as that shown in FIG.
As shown in FIG. 7, after the insulating tape 64 is made to enter the conveyance path of the positive electrode lead 26 unwound from the lead roll 56 with its adhesive surface facing upward, and the insulating tape 64 is attached to the back surface of the positive electrode lead 26, A first attaching mechanism 202 that cuts the insulating tape 64 into a predetermined length;
Has a second sticking mechanism 206 to bend upward by moving and driving, and stick the bent portion to the surface of the positive electrode lead 26. The thickness of the insulating tape 64 is, for example, about 52 μm, and this thickness includes the thickness of the pressure-sensitive adhesive of about 22 μm.

The detection of the attachment of the insulating tape 64 to the positive electrode lead 26 is usually performed by a reflection type photo sensor 210 (see FIG. 5).
May be installed between the first attaching mechanism 202 and the second attaching mechanism 206 as indicated by the dashed line frame to detect the insulating tape 64 attached to the back surface of the positive electrode lead 26. As the reflection type photo sensor 210, there is a side view type of the fiber sensor shown in FIG. 5, and a type using a micro spot lens adapter as shown in FIG.

As the positive electrode lead 26, for example, a strip-shaped metal foil (aluminum) is used. As the insulating tape 64, an adhesive tape made of a transparent polypropylene film is used for the purpose of improving adhesiveness and reducing costs. Is used.

That is, since a transparent resin material is used as the insulating tape 64, it becomes difficult to optically detect the insulating tape 64 attached to the positive electrode lead 26. There is a problem that the detection accuracy of the sensor 210 becomes unstable and erroneous detection increases.

Therefore, when a transparent material is used for the insulating tape 64, only the presence or absence of the insulating tape 64 attached to the positive electrode lead 26 can be detected.

The positioning of the position where the insulating tape 64 is attached to the positive electrode lead 26 is performed by intermittent feeding using an air cylinder. Therefore, as shown in FIG. 7, when the width Tw of the insulating tape 64 is set to, for example, 15 mm, even if the bonding position of the insulating tape 64 with respect to the positive electrode lead 26 deviates by a maximum of Tw / 2 (= 7.5 mm), the reflection type is used. Since the application of the insulating tape 64 is detected by the photo sensor 210, there may be a case where it is not determined that the attachment position is defective.

Therefore, the sticking position detecting device 200 according to the present embodiment is installed on the downstream side of the second sticking mechanism 206, and the positive electrode lead 26 to which the insulating tape 64 is stuck is mounted as shown in FIG. A conductive base 220 to be placed, and a direction approaching and / or separating from the base 220 (hereinafter, referred to as a base).
And a detection head 224 having a plurality of contacts 222A to 222D movably held in the direction of contact and separation.

The base 220 has an upper surface 220a inclined by a predetermined angle (for example, about 30 °) with respect to the installation surface 226, and the intermittently fed positive electrode lead 26 is provided on the upper surface 220a.
Is passed and placed. In this case, the first
The width and height of the guide portion of the positive electrode lead 26 in the attaching mechanism 202, the second attaching mechanism 206, and the like are appropriately adjusted, so that the transport of the positive electrode lead 26 is stabilized. As a result, the positive electrode lead 26 is not conveyed in an oblique direction with respect to the upper surface 220a of the base 220, but is always stably conveyed to the upper surface 220a of the base 220 with a constant direction. In addition, GND is connected to the base 220 so that a fixed ground voltage is applied.

The detection head 224 includes a plate-shaped resin plate 230 having a plate surface having substantially the same size as the upper surface 220 a of the base 220, and the four resin plates 230.
Mounting holes 232A to 232D (see FIG. 9).
), The contact holders 234A to 234D inserted and fixed in the mounting holes 232A to 232D, and the compression coil spring 2 with respect to the contact holders 234A to 234D.
Contacts 222A to 22A supported by 36A to 236D
2D.

The resin plate 230 is moved up and down by an up and down moving mechanism 238 composed of, for example, an air cylinder.
That is, the base 220 is movable in the direction of contact and separation with respect to the upper surface 220a of the base 220. When the resin plate 230 is lowered by the vertical movement mechanism 238, the contact 222
A to 222D are pushed up by about 2 mm. At this time, the compression coil springs 236 </ b> A to 236 </ b> A are set so that the contact pressure is 43 g or less, preferably 30 g.
Each spring constant of D is set. The contact 22
The tip of 2A to 222D is about 0.5R. In this case, the contact 222A for the insulating tape 64
The insulating tape 64 will not be damaged by the contact of ~ 222D.

The contact holders 234A to 234D are inserted through the mounting holes 232A to 232D (see FIG. 9) of the resin plate 230, and extend through the through holes 240A to 240 in the axial direction.
Bolt members 242A to 242 having 0D (see FIG. 9)
D and nut members 244A to 244D for screwing and fixing bolt members 242A to 242D projecting from the upper surface of the resin plate 230 from above the resin plate 230.
And

As shown in FIG. 9, the contacts 222A to 222D include conductive contact bodies 250A to 250D each having a rounded tip, and contact bodies 250A to 250D.
From the rear end of the contact body 250A to 250D
Of the contact holder 2
Bolt members 242A to 242 in 34A to 234D
D through-holes 240A to 240D (see FIG. 9) and support rods 252A to 252D, and contact body 250A to 250D.
Flanges 254A to 254D are provided integrally with the rear end of 250D to fix one end of the mounted compression coil springs 236A to 236D.

The support rods 252A to 252D are fixed to the contact main bodies 250A to 250D by being screwed into the rear ends of the contact main bodies 250A to 250D. Stopper pieces 256A to 256D for prevention are provided integrally.

Therefore, the contact 22 is attached to the resin plate 230.
When attaching 2A to 222D, first, bolt members 242A to 242D are attached to attachment holes 232A to 232D (FIG. 9).
After that, the nut members 244A to 244D are screwed in to fix the bolt members 242A to 242D.
At this stage, the contact holders 234A to 234D are attached to the resin plate 230.

Thereafter, the support rods 252A to 252D are moved from above the bolt members 242A to 242D.
The through holes 240A to 240D of 2A to 242D (see FIG. 9) are inserted. The support rods 252A to 252D have stopper pieces 256A to 256D that are bolt members 242A to 242.
The contact holders 234A to 234A to 23D
Supported by 4D.

Thereafter, the compression coil springs 236A to 236D are inserted through the ends of the support rods 252A to 252D, and further, the contact body 25 is inserted into the end of the support rods 252A to 252D.
0A to 250D are screwed into contact 222A.
To 222D are completely attached to the resin plate 230. The downward projecting amounts of the contact body 250A to 250D can be easily adjusted by turning the nut members 244A to 244D.

The first to fourth contacts 222A to 222A
Robot cables 260A to 260D are led out from the rear ends of the support rods 252A to 252D in 2D, respectively. These four robot cables 260A to 26D are provided.
0D is connected to a controller 262 installed at the subsequent stage.

Here, the four contacts 222A to 222D
The following describes the mounting positions of the two leads formed by the insulating tape 64 and the positive electrode lead 26 when the insulating tape 64 is properly adhered to the positive electrode lead 26, that is, the positive electrode lead 2.
6, a boundary formed on the upstream side in the transport direction is defined as an upstream sticking reference line m, and a boundary formed on the downstream side in the transport direction of the positive electrode lead 26 is defined as a downstream sticking reference line n.
The first contact 222A is arranged at a position closer to the positive electrode lead 26 than the upstream sticking reference line m, and the second contact 222A
B is arranged at a position closer to the insulating tape 64 than the upstream sticking reference line m, and the third contactor 222C is arranged at a position closer to the insulating tape 64 than the downstream sticking reference line n.
Are arranged at a position closer to the positive electrode lead 26 than the downstream-side sticking reference line n.

To be more specific, the description will be given while specifying numerical values. For example, when the width Rw of the positive electrode lead 26 is 4 mm and the width Tw of the insulating tape 64 is 15 mm, the arrangement of the first to fourth contacts 222A to 222D is determined. As an example of the position, in the positive electrode lead 26, a line ad connecting a point Pa directly below the first contact 222A and a point Pd vertically below the fourth contact 222D, and the insulating tape 64
Of these, the line bc connecting the point Pb vertically below the second contact 222B and the point Pc vertically below the third contact 222C is parallel to each other, and the separation width between these lines ad and bc d is about 3mm, point Pa
The distance Dad between the point Pd and the point Pd is 16 mm
The distance Dbc between b and the point Pc is 14 mm. FIG. 8 shows an arrangement based on this numerical value.

The detection principle of the sticking position detecting method (sticking position detecting device 200) according to the present embodiment will be described based on the arrangement example of FIG. First, in a case where the insulating tape 64 is properly attached to the positive electrode lead 26, if the portion where the insulating tape 64 is attached is positioned on the upper surface of the base 220 due to intermittent feeding of the positive electrode lead 26, as shown in FIG. And the boundary lines α and β between the insulating tape 64 and the positive electrode lead 26 coincide with the upstream sticking reference line m and the downstream sticking reference line n, respectively.

In this state, when the detection head 224 moves in the direction approaching the base 220 by the downward driving of the detection head 224 by the vertical movement mechanism 238, the first and fourth movements are performed.
Contact body 250A of the contactors 222A and 222D
And 250D contact the positive electrode lead 26, and the second and third
Contact body 250B of the contactors 222B and 222C
And 250C will come into contact with the insulating tape 64.
First and fourth contacts 222 in contact with positive electrode lead 26
For A and 222D, the inspection current from the controller 262 is transmitted through the positive electrode lead 26 and the base 220 to GN.
D, the second and third contacts 222B and 222C that have contacted the insulating tape 64
A phenomenon occurs in which the inspection current from 62 does not flow to the base 220 side.

Therefore, when an inspection current flows through the contact, for example, an ON operation (ON), and when an inspection current does not flow through the contact, an OFF operation (OFF), as shown in FIG. First and fourth contacts 222
When A and 222D are in the ON state and the second and third contacts 222B and 222C are in the OFF state, the controller 262 determines that the state is normal. That is, when the first, second, third, and fourth contacts 222A, 222B, 222C, and 222D are in the ON operation, the OFF operation, the OFF operation, and the ON operation, respectively, the controller 262 determines that the normal attachment is performed. It is configured as follows. This configuration may be configured using only digital circuits, or may be configured using software.

At this time, a message may be displayed through a display device 270 such as a CRT or a liquid crystal display. In this case, for example, a message “normal” is displayed.

Next, as shown in FIG. 10B, when the insulating tape 64 is pasted, for example, downstream from a predetermined pasting position, that is, when the insulating tape 64 is pasted in a laterally shifted state, the positive electrode lead 26 and the insulating tape 64 are attached. Are located downstream of the upstream-side pasting reference line m and the downstream-side pasting reference line n, respectively. Then, in the arrangement example, when the deviation amount exceeds 0.5 mm, the first, second, third, and fourth contacts 222A, 222B, 222
C and 222D are in an on-operation, on-operation, off-operation, and off-operation states, respectively, which are different from the normal operation state. Therefore, as shown in FIG.
2 outputs an abnormality determination (NG determination). In this case, it is processed as defective attachment. For example, after the cutting machine 58 cuts a predetermined length, it is processed as a defective product.

At this time, the operating state of each of the contacts 222A to 222D may be individually determined, and an abnormal state corresponding to the operator may be notified by a message display via the display device 270. In this case, for example, a message that “a lateral shift has occurred in the downstream direction” is displayed. The operator can easily recognize the breakdown of the abnormal attachment of the insulating tape 64 based on the content of the message,
The adjustment work for the first attaching mechanism 202 and the like can be promptly performed.

When the insulating tape 64 is attached, for example, on the upstream side of a predetermined attaching position, as shown in FIG. 10C, the boundary α between the positive electrode lead 26 and the insulating tape 64 is changed.
And β are located on the upstream side of the upstream attachment reference line m and the downstream attachment reference line n, respectively, and the first, second, third, and fourth contacts 222A, 222B, 222
C and 222D are turned off, off, on, and on, respectively. In this case, as shown in FIG. 11, an NG determination is made through the controller 262, and a message such as “occurrence of lateral displacement in the upstream direction” is displayed through the display device 270.

Next, as shown in FIG. 10D, when the insulating tape 64 is stuck obliquely with respect to a predetermined sticking position, the first, second, third and fourth contacts 222A, 222
2B, 222C and 222D are turned on, off, on and on, respectively, and the controller 262 outputs an NG determination as shown in FIG. Also in this case, it is processed as a defective attachment, and for example, a message “oblique attachment occurred” is displayed through the display device 270.

In the example of FIG. 10D, a case is shown in which the portions of the insulating tape 64 corresponding to the first and fourth contacts 222A and 222D are stuck to the downstream side.
On the other hand, when the portions corresponding to the second and third contacts 222B and 222C are stuck to the downstream side, FIG.
E, first, second, third and fourth contacts 2
22A, 222B, 222C and 222D are turned on, turned on, turned off, and turned on, respectively, and as shown in FIG.
A G determination will be output. Also in this case, it is processed as a defective attachment, and for example, a message “oblique attachment occurred” is displayed through the display device.

Next, as shown in FIG. 10F, when the insulating tape 64 is stuck shorter than a predetermined length, the first,
Second, third and fourth contacts 222A, 222B, 22
2C and 222D are all turned on, and FIG.
As shown in FIG. 1, the controller 262 outputs an NG determination. In this case as well, processing is performed as defective attachment, and a message such as “tape length shortage” is displayed through the display device 270.

As described above, in the sticking position detecting method (sticking position detecting device 200) according to the present embodiment, the positive electrode lead 26 having the insulating tape 64 stuck to the base 2
At the stage where the detection head 224 is placed on the detection head 224, the detection head 224 moves in a direction approaching the base 220 by driving by the vertical movement mechanism 238, and the four contacts 222A arranged on the detection head 224 by this movement. 222D contact the positive electrode lead 26 and / or the insulating tape 64. At this time, of the four contacts 222A to 222D, a phenomenon occurs in which the test current flows through the contact that contacts the positive electrode lead 26, and the test current does not flow through the contact that contacts the insulating tape 64.

When the inspection current flows through the contact, the ON operation is performed, and when the inspection current does not flow through the contact, the OFF operation is defined. The pattern of the ON operation and the OFF operation (ie, the detection pattern) indicates the positive electrode lead. 26
Is accurately detected.

Therefore, in the sticking position detecting method (sticking position detecting device 200) according to the present embodiment, even if insulating tape 64 is made of a material having transparency, sticking of insulating tape 64 to positive electrode lead 26 is possible. The position can be accurately detected.

In particular, in the present embodiment, the two boundary lines formed by the insulating tape 64 and the positive electrode lead 26 when the insulating tape 64 is correctly applied to the positive electrode lead 26 are defined by the upstream bonding reference lines m and When the downstream contact reference line n is defined, four contacts are disposed on the detection head 224, and among the four contacts 222A to 222D, the first contact 222
A is arranged at a position closer to the positive electrode lead 26 than the upstream sticking reference line m, and the second contactor 222B is arranged at a position closer to the insulating tape 64 than the upstream sticking reference line m. The contact 222C is arranged at a position closer to the insulating tape 64 than the downstream sticking reference line n, and the fourth contact 222D is arranged at a position closer to the positive electrode lead 26 than the downstream sticking reference line n. Therefore, the first to fourth contacts 222A to 222A
The actual positive electrode lead 26 according to the detection pattern from 2D
Can be accurately detected from the upstream and downstream reference lines m and n, and whether the insulating tape 64 is normally attached.

This leads to accurate determination of the quality of a battery having a positive electrode lead 26 to which a transparent insulating tape 64 is affixed and which is used as a component. It is possible to improve the efficiency of the manufacturing process, improve the yield of the battery, and supply a reliable battery to the market.

In the above-described example, the case where a transparent material is used as the insulating tape 64 has been described. However, it is needless to say that the present invention can be applied to the case where the position where the non-transparent insulating tape is attached is detected.

In the above embodiment, the insulating tape 6 attached to the positive electrode lead 26 which is a component of the battery is used.
Although the example applied to the case of detecting the pasting position of No. 4 was shown,
The present invention is not limited to this, and can be applied to any case where the position where the insulating member is attached to the conductive member in the device under test where the insulating member is attached to the conductive member is detected.

The method and the device for detecting a sticking position according to the present invention are not limited to the above-described embodiment, but may adopt various configurations without departing from the gist of the present invention.

[0088]

As described above, according to the sticking position detecting method of the present invention, even if the insulating member is made of a transparent material, the sticking position of the insulating member with respect to the conductive member can be accurately detected. can do.

According to the sticking position detecting device of the present invention, even if the insulating member is made of a transparent material, the sticking position of the insulating member with respect to the conductive member can be accurately detected. The detection method can be easily realized.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a battery winding device to which a sticking position detecting method (sticking position detecting device) according to the present embodiment is applied.

FIG. 2 is a perspective view showing a wound body manufactured by the winding device.

FIG. 3 is a schematic configuration diagram illustrating a winding unit provided in the winding device.

FIG. 4 is a schematic configuration diagram showing an insulating tape attaching machine provided in the winding device.

FIG. 5 is an explanatory diagram showing a configuration example in a case where a position where an insulating tape is attached is detected by a reflection type photosensor.

FIG. 6 is an explanatory diagram showing another example of the reflection type photo sensor.

FIG. 7 is an explanatory diagram showing a detectable range of an insulating tape by a reflection type photo sensor.

FIG. 8 is a configuration diagram showing a sticking position detecting device according to the present embodiment.

FIG. 9 is an enlarged cross-sectional view showing a part of a detection head in the sticking position detection device according to the present embodiment.

10A is an explanatory view showing a state in which the insulating tape is properly applied, FIG. 10B is an explanatory view showing a state in which the insulating tape is laterally shifted in the downstream direction, and FIG. FIG. 10D is an explanatory view showing a state in which the tape is laterally shifted in the upstream direction, and FIGS. 10D and 10E are explanatory views showing a state in which the insulating tape is affixed in an oblique direction. FIG. FIG. 4 is an explanatory view showing a state where the is also shortly attached.

FIG. 11 is a table showing changes in ON / OFF operations of first to fourth contacts according to the respective attachment states in FIGS. 10A to 10F, a determination result by a controller, and a message display example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Winding device 26 ... Positive electrode lead 58 ... Cutting machine 60 ... Welding machine 62 ... Insulating tape sticking machine 64 ... Insulating tape 200 ... Sticking position detection device 220 ... Base 222A-222D ... First-fourth contact 224 ... Detection head 230 ... Resin plate 234A-234D ... Contact holder 250A-25
0D: Contact body 262: Controller m: Upstream sticking reference line n: Downstream sticking reference line

Claims (8)

[Claims] 1. A sticking position detecting method for detecting a sticking position of an insulating member with respect to a conductive member on an object to be measured having an insulating member stuck to the conductive member, wherein the object to be measured is mounted on a conductive base. Placed on the base, the plurality of contacts held so as to be able to contact and separate from the base are brought into contact with the object to be measured mounted on the base, and based on a detection pattern from the plurality of contacts. A sticking position detecting method for detecting a sticking position of the insulating member with respect to the conductive member. 2. The sticking position detecting method according to claim 1, wherein a boundary formed by the insulating member and the conductive member when the insulating member is stuck to the conductive member is defined as a sticking reference line. When, at least one of the plurality of contacts,
Placed at a position on the insulating member side of the pasting reference line,
At least one other contactor is arranged at a position closer to the conductive member than the sticking reference line, and a sticking position of the insulating member with respect to the conductive member is detected. 3. The sticking position detecting method according to claim 2, wherein two boundary lines formed by the insulating member and the conductive member when the insulating member is stuck to the conductive member are defined by first and second lines. When defined as a second sticking reference line, the four contacts are arranged, and the first one of the four contacts is the first contact.
At a position closer to the conductive member than the sticking reference line of
A third contact is arranged at a position closer to the insulating member than the first attaching reference line, and a third contact is arranged at a position closer to the insulating member than the second attaching reference line. A sticking position detecting method, wherein a fourth contact is disposed at a position closer to the conductive member than the second sticking reference line, and a sticking position of the insulating member with respect to the conductive member is detected. . 4. The sticking position detecting method according to claim 1, wherein said conductive member is a band-shaped metal foil, and said insulating member is a transparent adhesive tape. Sticking position detection method. 5. A sticking position detecting device for detecting a sticking position of said insulating member with respect to said conductive member in an object to be measured in which said insulating member is stuck to said conductive member, wherein: And a detection head having a plurality of contacts held so as to be able to contact and separate from the base, and the conductive member is provided based on a detection pattern from the plurality of contacts in the detection head. A sticking position detecting device for detecting a sticking position of the insulating member with respect to the sticking position. 6. A sticking position detecting device according to claim 5, wherein a boundary line formed by said insulating member and said conductive member when said insulating member is stuck to said conductive member properly is defined as a sticking reference line. When doing, at least one of the plurality of contacts disposed on the detection head is disposed at a position closer to the insulating member than the sticking reference line, at least one other contact, A sticking position detecting device, which is arranged at a position closer to the conductive member than the sticking reference line. 7. The sticking position detecting device according to claim 6, wherein two boundary lines formed by the insulating member and the conductive member when the insulating member is properly bonded to the conductive member are defined as first and second boundaries. When defined as a second sticking reference line, four contacts are provided on the detection head, and a first one of the four contacts is the first contact.
It is disposed at a position closer to the conductive member than the sticking reference line,
A second contact is disposed at a position closer to the insulating member than the first bonding reference line, and a third contact is disposed at a position closer to the insulating member than the second bonding reference line. And a fourth contact located at a position closer to the conductive member than the second attachment reference line. 8. The sticking position detecting device according to claim 5, wherein the conductive member is a band-shaped metal foil, and the insulating member is a transparent adhesive tape. Sticking position detecting device.