JPH0927626A - Method of providing wire, device and solar cell substrate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to extend efficiently a multitude of wires across a work by a method wherein a plurality of the wires for current collection use are batch-held, the held wires are led out on the side of the other end of a substrate to secure the sides of the other ends of the wires on the substrate, subsequently, after the side of each one end of the wires is secured on the side of one end of the substrate, the wires are batch-cut and the like. SOLUTION: A plurality of wires 16 for current collection use are provided on a substrate 12 formed with a photosensitive film. In that case, the plurality of the wires 16 for current collection use are held at prescribed intervals on this side on the side of one end of the substrate 12, the plurality of the held wires 16 for current collection use are simultaneously led out on the side of the other end of the substrate 12 and sides of the other ends of the led-out wires 16 for current collection use are secured on the substrate 12. Subsequently, after the side of each one end of the wires 16 is secured on the side of one end of the substrate 12 while a state that the side of each one end of the wires 16 is held on the of one end of the substrate 12 is kept, the wires 16 are cut. Moreover, before the wires 16, for example, are led out on the side of the other end of the substrate 12, a process for removing simultaneously the loosening of the wires 16 for current collection use is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for providing a wire for stretching a plurality of wires in parallel on a predetermined work in the manufacture of, for example, a solar cell.

[0002]

2. Description of the Related Art Heretofore, a so-called wire current collecting method has been known as one type of solar cell structure.
In the manufacture of such a wire current collecting solar cell, it is necessary to attach a large number of current collecting wires in parallel on a metal substrate on which a photosensitive semiconductor film is formed. For this reason, in a manufacturing apparatus for manufacturing such a solar cell of a wire current collecting method, a large number of bobbins each independently wound with a wire are arranged in the manufacturing apparatus, and the wires are pulled out from the large number of bobbins, and a work is performed. A method of stretching over a metal substrate is adopted.

[0003]

However, in the above method, a method has been adopted in which wires are pulled out one by one from a number of bobbins, and are sequentially stretched over a metal substrate. For this reason, there is a problem that it takes much time to stretch all of the many wires, and the productivity is poor.

Therefore, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a method and apparatus for providing a wire capable of efficiently stretching a large number of wires on a work. is there.

[0005]

In order to solve the above problems and achieve the object, a method of providing a wire according to the present invention is to provide a plurality of current collecting wires on a substrate coated with a photosensitive film. The method of providing a plurality of current collecting wires, the plurality of current collecting wires being held at a predetermined interval in front of one end side of the substrate, and the held plurality of current collecting wires being simultaneously drawn to the other end side of the substrate. Fixing the other end side of the drawn current collecting wire on the substrate, and then keeping the one end side of the substrate of the current collecting wire held, It is characterized in that the current collecting wire is cut after being fixed to one end side of the substrate.

Further, in the method for providing a wire according to the present invention, the method further comprises the step of removing the slack of the current collecting wires at the same time before pulling out the plurality of current collecting wires to the other end side of the substrate. It is characterized by doing. In the method of providing a wire according to the present invention, a step of applying a predetermined tension to the plurality of current collecting wires before the plurality of current collecting wires is drawn out onto the substrate and fixed to the other end side. Is further provided.

Further, the method of providing a wire according to the present invention is
A method for providing a wire for providing a plurality of current collecting wires on a solar cell substrate, comprising a step of arranging and taking out a plurality of the current collecting wires from a wire storage part, and a method of collecting the current collecting wires. Holding and pulling out the current collecting wire from one end side to the other end side of the substrate at a predetermined interval, a slack removing step of removing slack of the drawn current collecting wire, and a step after removing the slack. It is characterized by comprising a tension applying step of applying tension to the current collecting wire and a cutting step of cutting the current collecting wire after applying the tension.

Further, in the wire providing method according to the present invention, the drawing step, the slack removing step, the tension applying step and the cutting step are performed on substantially the same plane, and the taking out step is performed by the wire accommodating portion. It is characterized in that it includes a step of changing the direction of a miracle of movement of the wire when shifting from the drawing step to the drawing step. An apparatus for providing a wire according to the present invention is an apparatus for providing a wire for providing a plurality of current collecting wires on a solar cell substrate, and a wire storage for feeding the current collecting wires at a plurality of pitch intervals. Means, drawing means for drawing the plurality of current collecting wires to the terminal end side of the substrate while maintaining the pitch interval, first fixing means for fixing the wires drawn to the terminal end side of the substrate, and the substrate And a second fixing means for fixing the wire on the initial end side of the.

Further, in the wire providing apparatus according to the present invention, the plurality of current collecting wires are simultaneously gripped, and the gripped current collecting wires are maintained from the initial end side of the substrate while maintaining the pitch interval. It is characterized in that it further comprises a gripping means for pulling to the side. Further, the apparatus for providing a wire according to the present invention is characterized by further comprising slack removing means for removing slack of the plurality of current collecting wires held by the holding means.

In the apparatus for providing a wire according to the present invention, a tension applying means for applying a tension to the current collecting wire before pulling out the current collecting wire grasped by the grasping means to the terminal end side of the substrate. It is characterized in that it further comprises. Further, the solar cell substrate of the present invention is a solar cell substrate manufactured by using a method of providing a wire for providing a plurality of current collecting wires on a substrate coated with a photosensitive film, The current collecting wire is held at a predetermined interval in front of the one end side of the substrate, the held plurality of current collecting wires are simultaneously drawn out to the other end side of the substrate, and the other end side of the drawn current collecting wire is After fixing the current collecting wire on the substrate and then fixing the current collecting wire on the one end side to the one end side of the substrate while keeping the one end side of the substrate for holding the current collecting wire. It is characterized by being manufactured by cutting a wire.

The method of providing a wire according to the present invention is
A method of providing a wire for stretching a predetermined number of wires in parallel on a predetermined work, wherein the predetermined number of wires are wound in parallel from a bobbin in which each of the predetermined number of wires is independently wound. A first step of pulling out and holding the predetermined number of wires collectively by the holding means; and the predetermined number of wires held together in the first step from the first end to the second end of the work. A second step of pulling out toward the part, and pressing the tip portions of the predetermined number of wires against the second end portion of the work, and adhering the tip portions of the predetermined number of wires to the second end portion. A third step and a fourth step of releasing the grip of the tip end of the wire and retracting the gripping means in a direction opposite to the drawing direction of the predetermined number of wires.
And a fifth step of pressing the rear part of the predetermined number of wires against the first end of the work to attach the rear part of the predetermined number of wires to the first end, and the predetermined number of wires. And a sixth step of collectively cutting the rear part of the wire on the front side with respect to the first end part.

Further, in the method of providing a wire according to the present invention, the gripping means collectively holds the predetermined number of wires in a state in which the tip portions of the predetermined number of wires are protruded by about 10 mm in the drawing direction of the wires. It is characterized by gripping. Further, in the method for providing a wire according to the present invention, the front end portion and the rear portion of the wire are bonded to the second end portion and the first end portion of the work with double-sided tape.

In the method of providing a wire according to the present invention, the work is a solar cell substrate having a photosensitive semiconductor film formed on the surface thereof, and the wire collects electric charges generated in the semiconductor film. It is characterized by being a collector wire for

In the present invention configured as described above, a plurality of wires are collectively gripped by the gripping means and stretched over the work, and the remaining length of the wire is collectively cut to perform one work. Since a large number of wires can be provided at one time, the productivity can be significantly improved.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION An example in which a wiring (wiring) device as a device for providing a wire according to an embodiment of the present invention is applied to the manufacture of a solar cell will be described in detail below with reference to the accompanying drawings.

First, in the manufacture of a solar cell, for example, an Al / ZnO back reflection layer for converting light into an electric charge, n / i /, is formed on a stainless steel substrate having a thickness of about 0.1 mm and a predetermined size. p-type amorphous silicon semiconductor layer, IT
An O transparent conductive layer or the like is formed. Then, a large number of current collecting wires for collecting electric charges generated in the semiconductor film are fixed on the stainless steel substrate (hereinafter, referred to as a slab) on which these films have been formed by thermal welding or the like. As the current collecting wire, a copper wire coated with a conductive film such as a carbon coat is used. Such a solar cell is generally called a wire current collecting system. The wiring device of this embodiment is a device for temporarily fixing the current collecting wire to the slab with double-sided tape or the like as a pre-process of fixing the current collecting wire to the slab on which the film formation is completed by heat welding or the like. is there.

FIG. 1A is a perspective view showing the slab 12 described above. Double-sided tape 1 on both ends of the square slab 12
After attaching a copper foil 15 to be an electrode for current collection by 3, and further attaching a double-sided tape 14 on the copper foil 15,
A current collecting wire 16 is stretched between the double-sided tape 14 and temporarily fixed. FIG. 1B is a diagram showing a state in which the current collecting wire 16 is stretched over the slab 12 in this manner.
FIG. 1B is a side view of FIG. 1B.

As shown in FIGS. 1B and 1C, the collector wire 1
After temporarily fixing 6 to the slab 12 with the double-sided tape 14, the slab 12 is placed on the hot plate heater 17 heated to about 250 ° C. as shown in FIG.
While heating 6, while the pressing machine 18, press the temporarily fixed current collector wire 16 on the slab 12 for about 5 seconds,
The conductive resin coated on the current collecting wire 16 is melted to weld the current collecting wire 16 onto the slab 12. In this way, the collector wire 16 is fixed on the slab.

The configuration of the wiring device of this embodiment will be described below.

FIG. 2 is a perspective view showing the overall structure of the wiring device, and FIG. 3 is a perspective view showing the structure of a bobbin cassette for supplying a collecting wire to the wiring device. The wiring device 20 is, for example, a square slab 1 of 300 mm square.
2, 42 current collecting wires 16 are temporarily fixed at a pitch of 5 mm.

In FIG. 2, the bobbin cassette 5 is mounted on the pedestal 22 installed on the floor of a factory or the like from the front side in the figure.
When the 42 current collecting wires 16 drawn from 00 are supplied to the slab 12 side, a slack removing mechanism 24 for removing slack of the current collecting wire 16 and a tension is applied to the wire 16 supplied from the slack removing mechanism 24. There is provided a step roller mechanism 26 for applying the pressure, and a bridging mechanism 28 for bridging the current collecting wire 16 to which the tension is applied by the step roller mechanism 26 to the slab 12. The detailed configuration of each of these mechanisms will be described later.

On the other hand, on the front side of the gantry 22 in the figure, as shown in FIG. 3, the bobbin cassette 500 is provided with 84 bobbins 502 in which the current collecting wires 16 are independently wound.
Is connected. The bobbin cassette 500 includes a bobbin 50
There are provided 42 bobbin shafts 504 for rotatably supporting the bobbin 2, and each bobbin shaft 504 has a bobbin 50.
2 are mounted two by two.

The structure of the bobbin cassette will be described in detail below with reference to FIG.

The bobbin cassette 500 has a central portion
A vertical member 506 that stands vertically and the vertical member 506
And a bobbin cassette body 510 composed of legs 508 with casters for supporting the cassette. Vertical member 5
The bobbin shaft 504 extending horizontally on both left and right sides of 06
Are provided, 21 in each case, and a total of 42 are provided. The 21 bobbin shafts 504 arranged on each surface of the vertical member 506 are separately arranged in three rows of A row, B row, and C row. As described above, two bobbins 502 are mounted on each bobbin shaft 504, respectively. The reason why two bobbins are mounted on each bobbin shaft 504 will be described later.

Above the vertical member 504, rows A, B,
Horizontal plates 512a and 512a corresponding to the bobbin shafts 504 in row C
12b and 512c are arranged, and direction conversion pulleys 514a, 514b and 5 for bending the direction of the current collecting wire 16 from the vertical direction to the horizontal direction are provided on these horizontal plates.
14c is rotatably supported. Direction change pulley 5
14a, 514b, and 514c are formed with independent grooves for guiding the seven current collecting wires 16 on the left and right, respectively. The current collecting wires 16 from each bobbin 502 are provided one by one in these grooves. Can be wound around. The pitch interval of these grooves is set to 5 mm, which is the same as the pitch at which the collector wire 16 is temporarily fixed on the slab 12. Therefore, 42
The 42 current collecting wires 16 pulled out from the bobbin 502 on the bobbin shaft 504 are supplied from the bobbin cassette 500 to the wiring device 20 side while being horizontally arranged at intervals of 5 mm pitch. .

A wire retainer 516 is provided on the right upper surface of the horizontal plate 512c for temporarily grasping and retaining the 42 current collecting wires pulled out from the bobbin cassette 500. This wire retainer 516 is a bolt 5
It is configured to be manually opened and closed by 16a. A slide rail 518 is provided on the left side of the horizontal plate 512c to guide a recovery gripper slidably in a horizontal direction for recovering at least one of the 42 current collection wires when the current collection wire is cut. Have been. The slide rail 518 is provided at the same height as the slide rail 30 (see FIG. 2) that is provided on the wiring device 20 side and also guides the restoration gripper in the horizontal direction, and the bobbin cassette 500 is provided on the wiring device. The slide rails 518 and 30 are configured to be connected to each other in a state where the slide rails 518 and 30 are docked. The role of this recovery gripper will be described later.

Since the bobbin cassette 500 is provided with the casters as described above, the wiring device 20
Can be easily removed and replaced with another bobbin cassette. Therefore, when any one of the 42 bobbin shafts 504 disposed on the bobbin cassette 500 becomes empty, the bobbin cassette can be replaced with another bobbin cassette, and the current collecting wire 16 is eliminated. The downtime of the wiring device at the time can be minimized.

The configurations of the slack eliminating mechanism 24, the step roller mechanism 26, and the stretching mechanism 28 shown in FIG. 2 will be described in detail with reference to FIGS. 2, 4, and 5.

FIG. 4 shows the slack removing mechanism 24 shown in FIG.
FIG. 4 is a side view schematically showing the configuration of a step roller mechanism 26 and a stretching mechanism 28.

In FIG. 4, the slack eliminating mechanism 24 is
This is to eliminate slack and irregularity in tension of each of the current collecting wires. FIG. 5 shows the configuration of the slack removing mechanism 24 in detail.

2 and 5, the slack removing mechanism 2
4 is an air cylinder C1 disposed along the vertical direction between the bobbin cassette 500 and the step roller mechanism 26, a slack removing portion 32 connected to the air cylinder C1,
And a support table 33 for supporting the current collecting wires 16 from below. The slack removing portion 32 is fixed to the distal end portion of the piston rod 34 of the air cylinder C1 and has a horizontal plate 36 provided with two steps, an elastic mechanism 38 provided on the left side of the horizontal plate 36, and a horizontal plate. A slack removing weight 40 slidably provided in a substantially central portion of the vertical plate 36 and a wire holder 46 provided on the right side of the horizontal plate 36 are provided. The elastic mechanism 38 includes the horizontal plate 3.
6, a slide shaft 43 slidably inserted into the slide guide 42 in the up-down direction, a wire holder 44 fixed to the distal end of the slide shaft 43, and a wire holder 44 which is always in contact with the slide guide 42. And a compression spring 46 biased downward. The wire retainer 44 is arranged in a direction perpendicular to the paper surface of FIG.
6 in the direction in which they are arranged).
42, 42 current collecting wires are collectively clamped between the wire holding member 33a and the upper wire holding member 33a. Two elastic mechanisms 38 are arranged so as to support substantially both ends of the wire retainer 44 in the extending direction (see FIG. 2).

The slack weight 40 is arranged in a substantially central portion of the horizontal plate 36 so as to be slidable in the vertical direction, and has a lower end portion thereof for pushing the wire 16 downward. As shown in FIG. 2, the slack removing weights 40 are provided one by one corresponding to each of the 42 current collecting wires.
The slack of the current collecting wires of the book can be independently taken.

Further, a wire retainer 46 for clamping the collector wire with the wire retainer 33b on the support table 33 is fixed to the right end of the horizontal plate 36. The wire retainer 46 is also formed to be long in the direction perpendicular to the paper surface of FIG. 5, so that 42 current collecting wires 16 can be clamped together.

The air cylinder C1 is fixed to a support member 52 provided on a support frame 50 fixed on the pedestal 22, as shown in FIG.

The slack eliminating mechanism 24 thus configured
The operation will be described with reference to FIG.

First, in the state of FIG. 5A, it is assumed that the current collecting wire 16 pulled out from the bobbin cassette 500 is pulled out to the position of the gripper 48 shown in FIG. 4 via the step roller mechanism 26. . In this state, the current collecting wires unwound from the bobbin 502 of the bobbin cassette 500 have various tensions and slacks one by one. Therefore, the role of the slack removing mechanism 24 is to keep the tension of the current collecting wire 16 behind the slack removing mechanism 24 (on the side of the step roller mechanism 26) constant.

First, the air cylinder C1 is operated from the state shown in FIG. 5A to lower the horizontal plate 36. Horizontal plate 3
6 starts to descend, the wire presser 44 of the elastic mechanism 38 moves the compression spring 4 in the middle thereof as shown in FIG. 5B.
The front end of the current collecting wire 16 is pressed down by the downward biasing force of 6 to temporarily clamp the current collecting wire 16. At this time, since the slack removing weight 40 also descends, the lower end portion thereof rests on the current collecting wire 16, and the current collecting wire 16 is pushed down by the amount of the slack of the current collecting wire 16. Slack weight 40
Are provided one for each of the current collecting wires 16, so that the 42 current collecting wires 16 are individually slackened by the slack removing weight 40, and the slack removing mechanism 24 is provided.
All the 42 current collecting wires 16 at the rear are unified to the same tension. Thereafter, as shown in FIG. 5C, the air cylinder C1 is further lowered, and the wire retainer 46 provided at the rear end of the horizontal plate 36 retains the current collecting wire 16 to perform the main clamp.

As described above, the tension of the collector wire 16 after the slack eliminating mechanism 24 is set to be the same for all 42 wires.

Next, the structure of the step roller mechanism 26 will be described with reference to FIGS. Step roller mechanism 26
Is a mechanism for applying a certain tension so that the current collector wire 16 does not have slack when the current collector wire 16 is pulled out from the point A to the point B shown in FIG. 4 by the gripper 48. When the tip of the current collecting wire 16 is located at the point A, the step rollers 54 and 56 pool the current collecting wires 16 into a certain length as shown by the chain double-dashed line in FIG. As the current collecting wire 16 is pulled out to the point B by the gripper 48, the weight 58 is pushed up by the current collecting wire 16 with the weight (actually, the difference in weight between the balance weight 66 and the weight 58 described later) being applied, It goes up to the position shown in. At this time, the current collecting wire 16 is pulled out from the point A to the point B while lifting the weight 58, so that the current collecting wire 16 is stretched with a constant tension and stretched over the slab 12 without slack.

In FIG. 4, the step roller mechanism 26 guides the current collecting wire 16 and applies a certain tension to the current collecting wire 16, and the step roller 54, 56 for hanging the step rollers 54, 56. Wire 60, a weight 58 attached near the step rollers 54, 56 of the wire 60, pulleys 62, 64 for hooking the wire 60, and step rollers 54, 5 of the wire 60.
6, a balance weight 66 attached to the end opposite to the side to which the balance weight 6 is attached, a slide shaft 68 for slidably supporting the balance weight in the vertical direction, and a U-shape for supporting the slide shaft 68. A mold frame 70, an air cylinder C3 for moving the frame 70 in the vertical direction, and an air cylinder C fixed to the frame 70 and pushing up the balance weight 66 along the slide shaft 68.
2 is roughly constituted.

The step roller 54 is rotatably attached to the tip of a support member 72 fixed to the tip of the wire 60, and the step roller 56 is in the direction of arrow D about the point C with respect to the support member 72. A support rod 74 that is swingably supported
It is rotatably attached to the tip of. Step roller 5
4. The step roller 56 and the support rod 74 are provided corresponding to one of the 42 current collecting wires 16, respectively.

Further, 42 proximity sensors S1 to S42 are attached at a position slightly above the supporting member 72 of the wire 60. These proximity sensors S1 to S42
When at least one of the current collecting wires 16 is broken and the tension is removed, the supporting rod 74 rotates in the clockwise direction around the point C as indicated by the two-dot chain line in the figure due to its own weight. It is to detect the closeness of 74a to detect the wire breakage. Proximity sensors S1 to S42
Are provided so as to correspond to one of the 42 support rods 74, so that it is necessary to detect for each one of the 42 current collection wires 16 which of the current collection wires has been disconnected. Is possible. Although details will be described later, in the present embodiment, if even one of the 42 current collecting wires is broken, all of the 42 current collecting wires are discarded by a certain length. Therefore, instead of detecting the disconnection of each of the 42 wires, it may be sufficient to detect that at least one of the 42 current collecting wires 16 has been disconnected.
In this case, for example, a configuration may be considered in which a laser beam or the like is emitted in a direction perpendicular to the paper surface of FIG. 4 and the light receiving element detects that the laser beam is blocked by the rear end portion 74a of the support rod 74. . With such a configuration, the number of sensors can be reduced, and the cost of the device can be reduced.

FIG. 18 is an enlarged perspective view showing a portion of the proximity sensor, and FIG. 19 is a side view of the same. As illustrated, the proximity sensors S1 to S42 are provided one by one corresponding to one of the 42 current collecting wires 16, and the current collecting wire 16 is broken as shown by the broken line in FIG. When the step roller 56 falls downwards, the support rod 74 rotates clockwise around the point C, and the proximity sensor S1 indicates that the rear end portion 74a of the support rod 74 approaches the proximity sensors S1 to S42.
~ S42 detects. As a result, 42 current collecting wires 1
It is possible to detect which of the six wires has a broken wire. Further, as the proximity sensor, a metal proximity sensor, an optical sensor, a laser sensor, or the like can be used.

In FIG. 4, the balance weight 66
Is set to be lighter by a certain weight than the weight 58, the difference between the weight of the balance weight 66 and the weight 58 is always applied to the current collecting wire 16, and a constant tension is applied to the current collecting wire 16 by this difference. Brought. Further, the air cylinder C3 is fixed to a support member 52 fixed on the pedestal 22, as shown in FIG. Also, the step rollers 54, 5
Rollers 71 and 73 are arranged before and after 6, and guide the current collecting wire 16 while supporting it.

Next, the structure of the stretching mechanism 28 will be described with reference to FIGS. 2 and 4.

The stretching mechanism 28 includes a gripper 48 for gripping the collector wire 16, an air cylinder C9 for vertically moving the gripper 48, and the gripper 48 together with the air cylinder C9 for the rear end portion (A) of the slab 12. Point) to the front end of the slab 12 (point B), and
NC robot NC1 for straddling the slab 12
And air cylinders C5, C8 for pressing the current collecting wire 16 stretched over the slab 12 against the double-sided tape stuck on both ends of the slab 12, and the air cylinder C
A cutter 80 fixed to the piston rod 82 of No. 5 and for cutting the rear end of the stretched current collecting wire 16;
The table 84 for supporting the slab 12 is roughly configured.

The gripper 48 is opened and closed by an air cylinder C4 provided in the gripper 48. The NC robot NC1 moves the air cylinder C9 supporting the gripper 48 in the X-axis direction by a motor (not shown) and a ball screw connected to the motor shaft. The motor is provided with a rotary encoder, and a controller described later controls the operation of the NC robot NC1 according to a detection signal of the encoder. At the tip of the piston rod 82 of the air cylinder C5, a current collecting wire 16 is attached to the slab 1
The rear end retainer 86 for pressing the second rear end portion 2 is fixed, and the cutter 80 is also fixed. Therefore, the rear end presser 86 and the cutter 80 are connected to the air cylinder C.
It is integrally moved in the vertical direction by 5. Although details will be described later, the cutter 80 includes a fixed blade and a movable blade, and cuts the current collecting wire 16 by sliding the movable blade with respect to the fixed blade by the air cylinder C6. Further, the fixed blade is once lowered between the 42 current collecting wires 16, and then the position thereof is finely adjusted by the air cylinder C7.
This operation will be described later. Also, the air cylinder C8
A front end pressing member 90 for pressing the front end portion of the current collecting wire 16 against the upper surface of the front end portion of the slab 12 is fixed to the front end of the piston rod 88. Further, the table 84 is
The slab 12 is configured to be vacuum-sucked and fixed by the suction mechanism B1.

The NC robot NC1, the air cylinder C5, and the air cylinder C8 are mounted on the base 2 as shown in FIG.
2 is fixed to the upper supporting frame 50. The table 84 is fixed on the pedestal 22.

Next, FIG. 6 is a block diagram showing a connection state between the above-mentioned components and a controller for controlling them.

In FIG. 6, the proximity sensors S1 to S42 and the NC robot NC1 are connected to the NC programmable controller 92, and the air cylinders C1 to C1 are connected.
A suction mechanism B1 for sucking C9 and the slab 12 is connected via an air solenoid 94. The NC programmable controller 92 operates the NC robot NC1, the air solenoid 94, and the vacuum ejector 96 based on an internal program, a detection signal of the proximity sensors S1 to S42, a detection signal of a rotary encoder in the NC robot NC1, and the like. Control.

Next, FIG. 20 is a block diagram further showing a connection state of each component of the wiring device 20 and the NC programmable controller 92. The NC programmable controller 92 includes a bobbin cassette 500 as a wire supplying means and a direction changing pulley 5 as a direction changing means.
14a, 514b, 514c, a slack removing mechanism 24 as a slack removing means, a step roller mechanism 26 as a tension applying means, a gripper 48 as a gripping means, a suction mechanism B1 as a substrate holding means, and a fixed end position. Air cylinder C8 as means, air cylinder C5 as first end position fixing means, and cutter 80 as cutting means.
An air cylinder C9 as a bridging means and an input means such as a keyboard are connected.

Next, the structure of the gripper 48 will be described with reference to FIGS. 7 to 9.

FIG. 7 is a perspective view showing the structure of the gripper 48. In FIG. 7, the gripper 48 is a plate-shaped gripper main body 102 having a substantially L-shaped cross section, a slide member 104 slidably provided in the gripper main body 102 in a horizontal direction, and a slide member 104. And a fixed finger 108 and a movable finger 110 for holding the current collecting wire 16, and a drive source for sliding the slide member 104 with respect to the gripper main body 102. It is roughly composed of an air cylinder C4.

The slide member 104 is the gripper body 10
It is slidably supported in the direction of arrow D in the figure in a state where it does not fall off with respect to 2, and is slid in the direction of arrow D by an air cylinder C4 fixed to the gripper main body 102. The fixed finger 108 has 42 current collecting wires 16.
, 42 pieces are fixed to the gripper body 102 at a pitch of 5 mm, and have a function of gripping the current collecting wire 16 with the movable finger 110. The 42 movable fingers 110 are rotatably supported around 42 support pins 112 fixed to the gripper main body 102, respectively, in a state facing the 42 fixed fingers 108,
As shown in FIG. 8 which is an enlarged view of the portion E in FIG. 7, by rotating clockwise, the current collecting wire 16 is held between the fixed finger 108 and rotating counterclockwise. The grip of the collector wire 16 is released. The upper end of the movable finger 110 is bifurcated into two arms 1
10a and 110b are formed, and 42 leaf springs 106 fixed to the slide member 104 are inserted one by one between the two arm portions 110a and 110b. Then, when the slide member 104 slides in the direction of the arrow in FIG. 8, the movable finger 110 is rotated by the elastic force of the leaf spring 106, and the current collecting wire 16 is gripped.

In the gripper 48 thus constructed, since the movable fingers 110 are connected to the slide member 104 by independent leaf springs 106, the arrangement pitch of the current collecting wires 16 is slightly shifted. Even if there are some variations or the diameters of the current collecting wires 16 are slightly different, the leaf springs 106 absorb them, so that the 42 current collecting wires 16 can be reliably connected between the fixed fingers 108 and the movable fingers 110. It can be gripped collectively. Also,
Since the force for gripping the current collecting wire 16 is determined not by the driving force of the air cylinder C4 but by the elastic force of the leaf spring 106, the current collecting wire 16 is damaged without excessive force being applied to the current collecting wire 16. Is prevented.

As shown in FIG. 9, the fixed finger 1
08 and the support pin 112 in the horizontal direction, the fixed finger 108 and the movable finger 110 when the current collecting wire 16 is gripped by the fixed finger 108 and the movable finger 110.
Is set so that the gripping surfaces of the current collectors are just parallel to each other so that the current collecting wire 16 is gripped in the most stable state.

Next, the structure of the cutter 80 will be described with reference to FIG.

FIG. 10 is a perspective view showing the structure of the cutter 80. 10, a cutter 80 includes an air cylinder C7 fixed to a piston rod 82 of the air cylinder C5 shown in FIG. 4, a cutter body 122 fixed to a piston rod 120a of the air cylinder C7, and a lower portion of the cutter body 122. A schematic configuration of a fixed blade 124 formed on the movable blade 126, a movable blade 126 that is horizontally slidably attached to the cutter body 122, and an air cylinder C6 that is a drive source for sliding the movable blade 126 with respect to the fixed blade 124. Has been done.

The fixed blade 124 is integrally formed on the lower part of the cutter body 122 formed in a substantially L-shaped cross section, and is shown by a broken line in the drawing so as to be inserted between the 42 current collecting wires 16. Thus, it is formed in a comb-like shape having 42 notches. On the other hand, the movable blade 126 is the cutter body 12
It is slidably supported in the direction of the arrow E in the figure without falling off from the position 2, and its lower part is 4 like the fixed blade 124.
It is formed in the shape of a comb tooth having two notches. Also,
The widths of the individual fixed blades and movable blades corresponding to the teeth of the comb are set to be smaller than the pitch interval of the 42 current collecting wires, that is, 5 mm. Then, 42 current collecting wires 16 are inserted between the notches of the fixed blade 124 and the movable blade 126, and the movable blade 126 is slid by an air cylinder C6 fixed to the cutter body 122, thereby collecting the current collecting wires. 16 can be cut and sandwiched. The air cylinder C7 moves the entire fixed blade 124 relatively to the 42 current collecting wires 16.

The cutting operation of the cutter 80 having the above structure will be described with reference to FIG.

FIG. 11 is a plan view of the cutter 80 as seen from above. In FIG. 11, the cutter 80 includes 42 current collecting wires 1 at a position between the gripper 48 and the slab 12.
Cut 6 together. First, as shown in FIG. 11A, the air cylinder C5 is pushed out to operate the cutter 8
The cutter main body 122 is lowered so that the fixed blade 124 and the movable blade 126 of 0 enter between the 42 current collecting wires. At this time, at the same time, the rear end presser 86 presses the rear end of the current collecting wire 16 against the rear end of the slab 12. FIG.
At the stage shown in FIG. 1 (a), the fixed blade 124 and the movable blade 126 are located between two adjacent current collecting wires 16 so as not to come into contact with the current collecting wires 16 as shown by the solid line in the figure. It is inserted in a state that it is slightly spaced from the current collecting wire 16 at approximately the center.

For example, when the movable blade 126 is slid with respect to the fixed blade 124 in this state to cut the current collecting wire 16, the movable wire 126 is gripped by the gripper 48 as shown by the chain double-dashed line in FIG. There is a possibility that the current collecting wire 16 will bend around the existing portion as a fulcrum. When the current collecting wire 16 is bent as described above, it becomes impossible to stretch the current collecting wire 16 straight to the next slab 12. Therefore, in this embodiment, after the fixed blade 124 and the movable blade 126 enter between the current collecting wires 16, the air cylinder C7 is operated to
As shown by a broken line in FIG. 1 (a), the fixed blade 124 and the movable blade 1
26 is shifted to a position substantially in contact with the current collecting wire 16. In this state, the air cylinder C6 is operated, and FIG.
As shown in FIG. 1 (b), the movable blade 126 is slid in the direction indicated by the arrow F to cut the current collecting wire 16. At this time, as shown in FIG. 11C, the collector wire 16 on the slab 12 side is dragged by the movable blade 126 and slightly bent. However, the current collecting wire on the slab 12 side is
Since it is pressed onto the slab 12 by the rear end presser 86, the collector wire 16 located on the slab 12 is not affected and no problem occurs.

On the other hand, the fixed blade 124 and the movable blade 126
11C is opposite to the state shown in FIG. 11C, that is, when the fixed blade 124 is on the slab 12 side and the movable blade 126 is on the gripper 48 side, the gripper 48 grips it. This is a problem because the current collecting wire 16 on the side where it is bent is bent. Therefore, in this embodiment, it is also important that the fixed blade 124 is on the gripper 48 side and the movable blade 126 is on the slab 12 side.

As described above, the 42 current collecting wires 16 are collectively cut while the current collecting wires 16 on the side gripped by the gripper 48 are prevented from being bent.

Next, the wiring (wiring) operation of the wiring device configured as described above will be described with reference to the flow charts shown in FIGS. 12, 13 and 14. FIG.
In order to simplify the drawing, the step roller 5
4, 56 and pulleys 62, 64 are shown as one roller and one pulley, respectively.

First, as a preparatory step for starting the wiring operation, as shown in FIG. 12A, the current collecting wire 16 is unwound from the bobbin 502 and held by the gripper 48, and the current collecting wire 16 is stepped by the step roller mechanism 26. Pool in the part of. The slack removing mechanism 24 removes the slack of the current collecting wire 16 between the slack removing mechanism 24 and the gripper 48. The tip of the current collecting wire 16 projects about 10 mm from the gripper 48, and
It is made to hold on to 8.

Then, the slab 12 is supplied onto the table 84, and the slab 12 is sucked onto the table 84 by the suction mechanism B1 (step S2). Next, NC robot NC
1 is operated to move the gripper 48 forward, and FIG.
As shown in, the tip of the collector wire 16 is conveyed to the front end of the slab 12 (step S4). At this time, since the wire retainer 516 and the slack eliminating mechanism 24 are in a closed state, the current collecting wire 16 is in a clamped state in these portions, and as the gripper 48 advances, the collecting roller 16 collects at the step roller mechanism 26. The pool amount of the electric wire 16 gradually decreases. When the pool amount decreases, the current collecting wire 16 pushes up the weight 58.
A weight corresponding to the difference between the weights of the weight 58 and the balance weight 66 is applied to 6 and a constant tension is applied. As a result, the current collecting wire 16 is stretched over the slab 12 without slack.

When the tip of the current collecting wire 16 is conveyed to the front end of the slab 12 by the gripper 48, the air cylinder C8 is operated and the tip of the current collecting wire 16 is pressed by the front end presser 90 as shown in FIG. 12 (c). Is pasted on the double-sided tape 14 (step S6). And the collecting wire 16
The front end of the gripper 4 is pressed against the double-sided tape 14 by the front end presser 90, and the air cylinder C4 is operated to operate the gripper 4
8 is opened (step S8), the NC robot NC1 is operated again, and the gripper 48 is retracted to the original position (step S10).

Next, the air cylinder C5 is operated to operate as shown in FIG.
As shown in FIG. 3 (d), the trailing edge presser 86 and the cutter 80 are lowered (step S12). As a result, the collector wire 16 is pressed onto the double-sided tape 14 by the rear end presser 86. Further, in the cutter 80, the fixed blade 124 and the movable blade 126 have a collector wire 1 as shown in FIG.
It will be in the state of entering during 6.

When the trailing edge presser 86 and the cutter 80 have been lowered, the air cylinder C4 is operated in preparation for cutting the current collecting wire 16, and the gripper 48 is closed to close the current collecting wire 16.
Is clamped (step S14).

Next, the air cylinder C7 is operated to move the fixed blade 124 and the movable blade 126 of the cutter 80 to the position shown in FIG.
As shown in (b), the current collecting wire 16 is shifted to a position substantially in contact with the current collecting wire 16, and the air cylinder C6 is operated to cut the current collecting wire 16 (step S16).

When the cutting of the collector wire 16 is completed, the air cylinders C5 and C8 are operated to move the front end presser 90, the rear end presser 86, and the cutter 8 as shown in FIG. 13 (e).
0 is increased (step S18). At the same time as this,
The wire retainer 516 is manually opened and the air cylinder C1 is operated to open the slack eliminating mechanism 24 (step S20). Then, the air cylinder C2 is operated to raise the balance weight 66. Balance weight 6
When 6 is raised, the total weight of the weight 58 is applied to the current collecting wire 16, and the current collecting wire 16 is moved to the bobbin 50.
It is unwound from No. 2 and is pooled in the step roller mechanism 26 (step S22).

Next, the air cylinder C2 is retracted and the wire retainer 516 is manually closed to clamp the current collecting wire 16 (step S24). Then, the air cylinder C1 is operated to operate the slack removing mechanism 24.
Is closed, and the slack of the collector wire 16 between the slack removing mechanism 24 and the gripper 48 is removed (step S2).
6). In this way, the slack removing mechanism 24 moves from the gripper 4
By removing the slack of the current collecting wire 16 up to 8 to keep the tension constant, when the current collecting wire 16 pooled in the step roller mechanism 26 is pulled out by the gripper 48,
Since the weight of the weight 58 is evenly distributed over the current collecting wires of the book, disconnection or the like due to the concentrated weight of a small number of current collecting wires is prevented.

In step S18, the front end presser 90
When the rear end presser 86 rises, the temporary fixing of the current collecting wire 16 to the slab 12 ends, so that the suction of the slab 12 is released (step S28) and the slab 12 is released in parallel with the operation of steps S20 to S26. Is carried to the next process (step S30).

The above is the overall operation of the wiring apparatus of the present embodiment.

Next, referring to FIG. 15 and FIG.
The recovery operation when at least one of the current collecting wires is broken will be described.

FIG. 15 and FIG. 16 are views showing a recovery procedure when the current collecting wire 16 is broken. First, FIG.
As shown in (a), when any of the 42 current collecting wires 16 is broken, the force for lifting the step roller 56 is lost, so the support rod 74 rotates clockwise around the point C, and the support rod 74 is rotated. The proximity sensors S1 to S42 detect the rear end portion 74a to detect which current collecting wire is broken. In this embodiment, when even one of the 42 current collecting wires 16 is broken, all 42 current collecting wires 16 are discarded by a certain length. Therefore, FIG. 15 (a)
As shown in, slightly behind the wire retainer 516,
The 42 current collecting wires 16 are collectively cut, and all the current collecting wires 16 behind the wire retainer 516 are discarded.
When cutting the current collecting wire 16, the wire retainer 516 is closed.

Next, the air cylinders C1, C3, C9, C5
15 is operated to raise all of the slack eliminating portion 32, the step rollers 54, 56, the gripper 48, the rear end presser 86, and the cutter 80 to escape. In this state, the recovery gripper 200 is attached to the slide rails 518 and 30 described above, and the recovery gripper 2
At 00, the 42 current collecting wires 16 that have been cut are collectively held.

Next, as shown in FIG. 16C, the wire retainer 516 is opened, the recovery gripper 200 is slid along the slide rails 518 and 30, and the current collecting wire 16 is pulled out to the position of the gripper 48. . This is done manually. Then, as shown in FIG. 16D, the gripper 48 is lowered to grip the current collecting wire 16, and the recovery wire gripper 200 is removed by cutting with the tip of the current collecting wire 16 leaving about 10 mm. Then, the air cylinders C1 and C3 are operated to lower the slack eliminating portion 32 and the step rollers 54 and 56 to return them to their original positions. After this, the normal operation as described above is performed.

In this way, recovery work is performed when the current collecting wire 16 is broken.

Next, the reason why two bobbins 502 are mounted on the bobbin shaft 504 in the bobbin cassette 500 will be described with reference to FIG.

Here, for example, the bobbin 5 is attached to the bobbin shaft 504.
Assuming that only one 02 is mounted, in this case, if any of the bobbins 502 becomes empty, it becomes necessary to replace the bobbin. then,
Since the length of the collector wire 16 wound around the 42 bobbins 502 has a slight variation, even if one bobbin becomes empty, the other 41 bobbins 502 have a small amount of the collector wire 16. Is left. Therefore, if all 42 bobbins are replaced even if one bobbin is empty, all the collector wires remaining on the other bobbins will be wastefully discarded. However, if only the empty bobbin is replaced, another bobbin will become empty again after a short time after this replacement, and the bobbin must be replaced frequently, which lowers the production efficiency. Cause. In this embodiment, this problem is solved by mounting two bobbins on one bobbin shaft.

The following is a description with reference to FIG.

In this embodiment, in the initial state of the wiring device 20, two new bobbins 502 are mounted on each bobbin shaft 504 of the bobbin cassette 500. Of these two bobbins 502, the end of the current collecting wire 16 wound around the bobbin 502a that is first unwound and the tip of the current collecting wire 16 wound around the second bobbin 502b are As shown in 17 (a), they are connected by welding or the like.

When the wiring operation is continued from this state,
Two bobbins 502 mounted on one of the bobbin shafts 504 become empty. At this time, in the 41 bobbin shafts other than the empty bobbin shaft, as shown in FIG. 17B, a slight amount of the current collecting wire 16 remains in the second bobbin 502b. ing. In such a state, in the present embodiment, two new bobbins are newly mounted on the bobbin shaft in which the two bobbins are empty.
For the other 41 bobbin shafts in the state as shown in FIG. 17 (b), only one empty bobbin 502a is removed, and one new bobbin 502c is removed as shown in FIG. 17 (c). Put on. Then, the end of the current collecting wire 16 wound on the bobbin 502b and the tip of the current collecting wire 16 wound on the new bobbin 502c are connected by welding or the like as shown by a point H in FIG. 17 (c). . Hereinafter, when any of the bobbin shafts 504 becomes empty, two new bobbins are attached to the empty bobbin shaft and
As shown in FIGS. 17D and 17E, the operation of replenishing the other 41 bobbin shafts with one new bobbin is repeated.

As described above, when one of the 42 bobbin shafts becomes empty, two new bobbins are attached to the empty bobbin shaft and one to the other 41 bobbin shafts. By installing a new bobbin, the bobbin cassette 500
At least one new bobbin is mounted on all bobbin shafts 504 of the bobbin shaft 504, and the bobbin replacement cycle is approximately equal to the time until one bobbin becomes empty. It takes about one day to empty one bobbin, so you can replace the bobbin about once a day.
It is possible to prevent the productivity from decreasing. Also,
It is also possible to prevent waste of the collector wire, which is slightly left on each bobbin, to be discarded. When the bobbin is replaced, the entire bobbin cassette 500 is removed from the wiring device 20, and another bobbin cassette is connected to the wiring device 20.
It takes an extremely short time to replace 00. And in the removed bobbin cassette 500,
If the bobbin is replaced at another location, the time required for the bobbin replacement, which is time-consuming, is not reflected in the downtime of the apparatus, and the productivity can be prevented from lowering.

As described above, according to the above-described embodiment, by mounting two bobbins on one bobbin shaft, it is possible to eliminate the waste of the collector wire and reduce the productivity. Can be prevented.

Further, since a plurality of current collecting wires can be temporarily fixed to the slab at once, the current collecting wires can be wired on the slab in a short time.

Further, by elastically attaching the movable finger of the gripper that holds the current collecting wire to the drive source, it is possible to flexibly cope with variations in the pitch and outer diameter of the current collecting wire. .

Further, since the step roller is configured to drop by gravity when the current collecting wire is broken, it is possible to easily detect the breaking of the wire.

Further, when the current collecting wire is broken, the slack eliminating part, the step roller, the rear end presser, the cutter, etc. are all raised so as to escape, so that recovery is possible when the current collecting wire is broken. Can be done easily.

Further, when cutting the current collecting wire, the blade of the cutter is once lowered to a position where it does not come into contact with the current collecting wire,
After that, by shifting to a position where the current collecting wire is substantially in contact with the current collecting wire, the current collecting wire can be cut all together without bending.

The present invention can be applied to a modified or modified version of the above embodiment without departing from the spirit of the present invention.

For example, in the above embodiment, the case where 42 current collecting wires are stretched over a slab of 300 mm square is described, but the size of the slab and the number of wirings are merely examples, and the present invention is not limited to the size of the slab. Needless to say, it is applicable regardless of the number of wires.

Although the current collecting wire is temporarily fixed to the slab with the double-sided tape, the present invention is not limited to this and may be adhered with an ultraviolet curable adhesive or the like.

[0096]

As described above, according to the present invention,
Since a plurality of wires can be collectively gripped by the gripping means and stretched over the work, and the remaining length of the wire is cut at a time, a large number of wires can be provided at one time in one operation. It is possible to remarkably improve the property.

[0097]

[Brief description of drawings]

FIG. 1A is a perspective view showing a slab.

FIG. 1B is a diagram showing a state in which a current collecting wire is stretched over a slab.

FIG. 1C is a side view of FIG. 1B.

FIG. 1D is a diagram showing a manner in which a current collecting wire is pressed and fixed.

FIG. 2 is a perspective view showing an overall configuration of a wiring device.

FIG. 3 is a perspective view showing a configuration of a bobbin cassette for supplying a collecting wire to a wiring device.

FIG. 4 is a side view schematically showing the configurations of a slack eliminating mechanism, a step roller mechanism, and a stretching mechanism shown in FIG.

FIG. 5 is a view for explaining the operation of the slack eliminating mechanism.

FIG. 6 is a block diagram showing a connection state between each component of the wiring device and a controller that controls the components.

FIG. 7 is a perspective view showing a configuration of a gripper.

FIG. 8 is an enlarged view of a portion E in FIG.

FIG. 9 is a diagram showing a positional relationship between a fixed finger and a movable finger when gripping a current collecting wire.

FIG. 10 is a perspective view showing a configuration of a cutter.

FIG. 11 is a plan view of the cutter as seen from above.

FIG. 12 is a diagram for explaining the wiring operation of the wiring device.

FIG. 13 is a diagram for explaining the wiring operation of the wiring device.

FIG. 14 is a flowchart showing a wiring operation of the wiring device.

FIG. 15 is a diagram showing a recovery procedure when a current collecting wire is broken.

FIG. 16 is a diagram showing a recovery procedure when the current collecting wire is broken.

FIG. 17 is a diagram for explaining a bobbin replacement method.

FIG. 18 is an enlarged perspective view showing a portion of a proximity sensor.

FIG. 19 is an enlarged side view showing a portion of a proximity sensor.

FIG. 20 is a block diagram showing a connection state between each component of the wiring device and the controller.

[Explanation of symbols]

 12 Slab 14 Double-sided tape 16 Current collecting wire 22 Stand 24 Slack removal mechanism 26 Step roller mechanism 28 Stretching mechanism 30 Slide rail 32 Slack removal section 33 Support table 34 Piston rod 36 Horizontal plate 38 Elastic mechanism 40 Slack weight 42 Slide guide 44 Wire retainer 46 Compression spring 50 Support frame 52 Support member 54,56 Step roller 58 Weight 60 Wire 62,64 Pulley 66 Balance weight 68 Slide shaft 70 Frame 71,73 Roller 72 Support member 74 Support rod 80 Cutter 82 Piston rod 84 Table 86 Rear end press 90 Front end press 102 Gripper body 104 Sliding member 106 Leaf spring 108 Fixed finger 110 Movable finger 112 Support pin 122 Cutter body 124 Fixed blade 1 6 movable blade 500 bobbin cassette 502 bobbin 504 bobbin axis 506 vertical member 508 leg 510 bobbin cassette body 512a, 512b, 512c horizontal plate 514a, 514b, 514c redirecting pulley 516 wire retainer 518 sliding rail

Claims (14)

[Claims] 1. A method for providing a wire for providing a plurality of current collecting wires on a substrate coated with a photosensitive film, wherein the plurality of current collecting wires are provided at predetermined intervals before one end side of the substrate. The plurality of current collecting wires held at the same time are simultaneously drawn out to the other end side of the substrate, and the other end side of the drawn current collecting wires is fixed on the substrate. While holding the one end side of the substrate of the wire,
After fixing the current collecting wire at one end to the one end of the board,
A method of providing a wire, characterized by cutting the current collecting wire. 2. The method according to claim 1, further comprising the step of simultaneously removing a plurality of slacks of the current collecting wires before the plurality of current collecting wires are pulled out to the other end side of the substrate. How to make the lines described. 3. The method further comprises the step of applying a predetermined tension to the plurality of current collecting wires before the plurality of current collecting wires are drawn onto the substrate and fixed to the other end side. The method of providing a wire according to claim 1. 4. A method for providing a wire for providing a plurality of current collecting wires on a solar cell substrate, comprising a step of arranging and taking out a plurality of the current collecting wires from a wire storage portion, A step of pulling out the current collecting wire from the one end side of the substrate to the other end side at a predetermined interval while holding the current collecting wire; a slack removing step of removing slack of the drawn current collecting wire; A method for providing a wire, comprising: a tension applying step of applying tension to the current collecting wire after removing the slack, and a cutting step of cutting the current collecting wire after applying the tension. 5. The pulling step, the slack removing step, the tension applying step, and the cutting step are performed on substantially the same plane, and the pulling step is performed when the wire is transferred from the wire storage section to the pulling step. 5. The method of providing a line of claim 4, including the step of redirecting the moving miracle of. 6. An apparatus for providing a wire for providing a plurality of current collecting wires on a solar cell substrate, comprising wire housing means for feeding the current collecting wires at a plurality of pitch intervals, and the pitch intervals. Drawout means for keeping the plurality of current collecting wires drawn out toward the terminal end side of the substrate, first fixing means for fixing the wire drawn out to the terminal end side of the substrate, and wire at the first end side of the substrate. An apparatus for providing a wire, comprising: a second fastening means for fastening. 7. A gripping means for gripping the plurality of current collecting wires at the same time and drawing the gripped current collecting wires from the first end side to the terminal end side of the substrate while maintaining the pitch interval. An apparatus for providing a wire according to claim 6, characterized in that. 8. The apparatus for providing a wire according to claim 7, further comprising slack removing means for removing slack of the plurality of current collecting wires held by the holding means. 9. A tension applying means for applying a tension to the current collecting wire before the current collecting wire held by the holding means is pulled out to the terminal end side of the substrate. A device for providing the wire according to item 7. 10. A solar cell substrate manufactured by using a method for providing a line for providing a plurality of current collecting wires on a substrate coated with a photosensitive film, wherein the plurality of current collecting wires are provided. The substrate is held at a predetermined interval in front of one end side of the substrate, the held plurality of current collecting wires are simultaneously drawn to the other end side of the substrate, and the other end side of the drawn current collecting wires is fixed to the substrate. Then, while maintaining a state in which one end side of the substrate of the current collecting wire is held,
After fixing the current collecting wire at one end to the one end of the board,
A solar cell substrate manufactured by cutting the current collecting wire. 11. A method of providing a wire for stretching a predetermined number of wires in parallel on a predetermined work, the bobbins having the predetermined number of wires wound independently of each other.
A first step of unwinding the predetermined number of wires in parallel and collectively gripping the predetermined number of wires by a gripping means, and the predetermined number of wires collectively gripped in the first step as the first step of the work. A second step of pulling from one end portion toward a second end portion; pressing the tip end portions of the predetermined number of wires against the second end portion of the work, and the predetermined end portion on the second end portion. A third step of attaching the tip parts of the wires of a number, and a fourth step of releasing the grasping of the tip parts of the wires and retracting the grasping means in a direction opposite to the pull-out direction of the predetermined number of wires. A fifth step of pressing the rear portion of the predetermined number of wires against the first end portion of the work, and attaching the rear portion of the predetermined number of wires to the first end portion, and the predetermined number of wires The rear part on the front side of the first end part. Sixth step the method of providing a line which is characterized by comprising the Batch cutting. 12. The gripping means collectively grips the predetermined number of wires with the tip of the predetermined number of wires protruding by about 10 mm in the drawing direction of the wire. The method of providing the line described in. 13. The wire according to claim 11, wherein a front end portion and a rear portion of the wire are adhered to the second end portion and the first end portion of the work with double-sided tape. How to provide. 14. The work is a solar cell substrate having a photosensitive semiconductor film formed on the surface thereof, and the wire is a current collecting wire for collecting electric charge generated in the semiconductor film. A method of providing a line according to claim 11, characterized.