JP2002369466A - Winding method and winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously wind wires on a plurality of cores, while avoiding decline in the winding speed and the dimensional increase of a winding device as a whole. SOLUTION: A plurality of divided cores 7a, 7b, and 7c are set respectively on a plurality of receiving jigs 13a, 13b, and 13c arranged adjacent to each other along a conveyance line 9. The respective receiving jigs 13a, 13b, and 13c are transferred with the cores 7a, 7b, and 7c, to positions which are out of the conveyance line 9 and have revolving operation spaces of a plurality of nozzles 15a, 15b, and 15c off wires 11a, 11b, and 11c around them. With these kept in these states, the wires 11a, 11b, and 11c paid off by the nozzles 15a, 15b, and 15c are wound on the cores 7a, 7b, and 7c, while the respective nozzles 15a, 15b, and 15c are made to revolve around the respective cores 7a, 7b, and 7c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a winding method and a winding device for winding a wire around a plurality of divided cores.

[0002]

2. Description of the Related Art As a coil used in a motor or the like, a core around which a wire is wound may be divided into a plurality of cores. JP-A-11-33218
No. 5 is disclosed. In this publication, one core is set on an XY table movable in X and Y directions orthogonal to each other, and the entire XY table is adjusted together with the core while adjusting the position in the X and Y directions. By rotating the wire, the wire fed from the nozzle is sequentially wound around the core.

[0003]

In the above-mentioned publication, for example, the plan view of FIG.
As shown in the front view of FIG. 1, in the case of a three-phase motor, it is assumed that the wire rods 3 are wound simultaneously with the three-phase divided cores 1 arranged in a line, and the rotation of the XY table on which the cores 1 are set is assumed. Or a nozzle 5 for feeding out the wire 3
The nozzle 5 needs to relatively move around the gap between the adjacent cores 1 due to the pivotal movement of the
For this reason, the winding speed becomes slow, which causes a decrease in productivity.

If the interval between the cores 1 is increased in order to facilitate the orbital movement of the nozzle 5, the XY table becomes larger, which leads to an increase in the size of the entire apparatus.

Accordingly, an object of the present invention is to enable a wire to be wound around a plurality of cores at the same time while preventing a reduction in the winding speed and an increase in the size of the entire apparatus.

[0006]

According to a first aspect of the present invention, there is provided a winding method for winding a wire around a plurality of divided cores sequentially conveyed on a conveying line. A plurality of receiving jigs arranged in a state of being adjacent to each other along the transport line, and each of the receiving jigs is displaced together with the core from the transport line, and In a state in which the nozzle is moved to a position having a swirling operation space around the core, a wire rod fed from the nozzle while the nozzle is swung around the core is wound around the core.

According to a second aspect of the present invention, in the winding method according to the first aspect of the present invention, after the winding is completed, each receiving jig is returned to the transport line together with the core, and the core on the receiving jig is transported on the transport line. As a method of transporting it onto the support means.

According to a third aspect of the present invention, in the winding method according to the second aspect of the present invention, the core material on the receiving jig is transferred onto a transfer support means on a transfer line, and then the wire is pulled back to the nozzle side. There is.

According to a fourth aspect of the present invention, in the winding method according to any one of the first to third aspects, the wire supply section for sequentially supplying a wire to the nozzle in accordance with the swirling operation of the nozzle is provided in the winding direction. And in the same direction as the above.

According to a fifth aspect of the present invention, there is provided a transportation line for sequentially transporting a plurality of divided cores, a plurality of nozzles for winding a wire, which is fed while rotating around the plurality of cores, around the cores, Each core is set, and from a position adjacent to each other along the transport line,
It is provided with a plurality of receiving jigs that can move to a position deviating from the transport line and to a position around each of the swirling operation spaces of the plurality of nozzles.

According to a sixth aspect of the present invention, in the configuration of the fifth aspect, the receiving jig is provided at the other end of the swivel arm which can be rotated in a horizontal direction with one end serving as a fulcrum.

According to a seventh aspect of the present invention, in the configuration of the fifth or sixth aspect, the plurality of cores are set on a receiving jig while holding the plurality of cores, and the cores returned to the transport line after the winding is completed. It is configured to include a transfer mechanism for transferring the data onto the transfer support means in the transfer line.

According to an eighth aspect of the present invention, in the configuration of the seventh aspect of the present invention, there is provided a pull-back means for pulling back the wire rod between the core and the nozzle transferred onto the transfer support means by the transfer mechanism to the nozzle side. There is.

According to a ninth aspect of the present invention, in the configuration according to any one of the fifth to eighth aspects, a wire supply section for sequentially supplying a wire to the nozzle in accordance with the swirling operation of the nozzle is provided in the same direction as the swirling direction. It is configured to include a rotation drive mechanism for rotating in the direction.

According to a tenth aspect of the present invention, in the configuration of the ninth aspect, the wire supply section is provided so as to be rotatable integrally with the nozzle.

[0016]

According to the first aspect of the present invention, when a wire is wound around a plurality of cores, the receiving jig on which the cores are set is used.
Since the wire is moved to the position that has the space for the swivel movement of the nozzle that feeds the wire, the speed of winding the wire that is fed from the nozzle onto the core can be increased, and a table that can rotate with the core when the nozzle is fixed is not required. In addition, an increase in the size of the entire apparatus can be avoided.

According to the second aspect of the present invention, a plurality of cores for winding a wire next to the receiving jig can be continuously fed, and the winding operation on the cores can be continuously performed.

According to the third aspect of the present invention, after the core on the receiving jig is transferred onto the transfer support means on the transfer line, the wire is pulled back to the nozzle side. The wire can be prevented from becoming entangled by eliminating the slack of the wire, and sufficient tension can be applied at the next winding to improve the winding.

According to the fourth aspect of the present invention, the wire supply section for sequentially supplying the wire to the nozzle is rotated in the same direction as the swirling direction of the nozzle as the nozzle is swung. Twisting can be prevented.

According to the fifth aspect of the present invention, when the wire is wound around the plurality of cores, the receiving jig on which the cores are set is moved to a position having a space for swiveling the nozzles, so that the wire fed from the nozzles is moved. Can be increased, and a table that can be rotated together with the core when the nozzle is fixed is not required, thereby avoiding an increase in the size of the entire apparatus.

According to the sixth aspect of the invention, the receiving jigs on which the cores are set can be moved to positions adjacent to each other along the transfer line by rotating the swing arm with one end serving as a fulcrum. It is possible to easily move between the deviated position and a position having the swirling operation space of each of the plurality of nozzles around.

According to the seventh aspect of the present invention, the plurality of cores are set on the receiving jig while being gripped by the transfer mechanism, and the core returned to the transfer line after the completion of the winding is transferred to the transfer line. By transferring on the support means, the winding operation on the core can be performed continuously.

According to the eighth aspect of the present invention, the wire rod between the core and the nozzle transferred onto the transfer support means is drawn back to the nozzle side by the pull-back means, so that the wire rod between the core and the nozzle is drawn. Can be prevented, and the wire can be prevented from being entangled, and sufficient tension can be applied at the next winding to improve the winding.

According to the ninth aspect of the present invention, the wire driving section for sequentially supplying the wire to the nozzle is rotated by the rotation drive mechanism in the same direction as the turning direction of the nozzle. Can be prevented from being twisted.

According to the tenth aspect of the present invention, since the wire supply section is provided so as to be rotatable integrally with the nozzle,
Since the wire supply unit also rotates integrally with the wire winding operation due to the rotation of the nozzle, it is possible to reliably prevent the wire wound around the core from being twisted.

[0026]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view schematically showing a winding apparatus according to an embodiment of the present invention, and FIG. 2 is a view taken in the direction of the arrow L in FIG. A plurality of cores 7 of a coil used for a motor or an electric motor are sequentially conveyed in a single row on a conveyance line 9 extending in the left-right direction in FIG. 1 from right to left in the drawing. . Here, of the plurality of cores divided in the three-phase motor, three cores 7a, 7b, 7 for three phases
The case where the wires 11a, 11b, 11c are simultaneously wound around c will be described.

Three cores 7a and 7 for performing a winding operation
b and 7c are receiving jigs 13a and 13c arranged adjacent to each other along the transport line 9 as shown in FIG.
b, 13c, and from this state, three cores 7
a, 7b and 7c have been moved together with the receiving jigs 13a, 13b and 13c to the position shown by the two-dot chain line in FIG.
Wire rod 1 fed from nozzles 15a, 15b, 15c
1a, 11b and 11c are simultaneously wound around three cores 7a, 7b and 7c.

The positions of the cores 7a, 7b and 7c indicated by the two-dot chain lines are the positions deviating from the transport line 9 and the nozzles 15 for feeding the wires 11a, 11b and 11c.
a, 15b, and 15c are positions having a surrounding space for turning motion. Note that the nozzles 15a, 15b, 15c
It is omitted in FIG.

As shown in FIG. 2, the transport line 9 has a core supply rail 17 in which the unwound cores 7 are arranged in a single row, and a wound core 7 in a single row. A core dispensing rail 19 as transport support means,
Payout rail 19 between these two rails 17, 19
On the side, the three receiving jigs 13a, 13b, 13c described above are provided.
Is arranged.

The receiving jigs 13a, 13b and 13c are shown in FIG.
As shown in FIG. 3 which is a view taken in the direction of arrow M, a projection 23 is provided on both sides along the transfer line 9 to protrude upward in the figure so as to cover both sides of the first flange 21 of the core 7. The receiving surface 25 is formed in a concave arc surface corresponding to the convex arc surface of the first flange 21 as shown in FIG.

Above the transport line 9, the three unwound cores 7 are transferred and set from the core supply rail 17 onto receiving jigs 13a, 13b, 13c.
The three wound cores 7 are transferred to receiving jigs 13a and 13a.
A transfer mechanism 27 for transferring the cores from the positions b and 13c onto the core payout rail 19 is arranged.

The transfer mechanism 27 includes a pair of clamp claws 33 for clamping the second flange 31 formed on the opposite side of the first flange 21 of the core 7 with the wound portion 29 interposed therebetween.
It has. The clamp claw 33 is rotatable via a rotation support pin 37 with respect to a holding plate 35 disposed above the clamp claw 33. The clamping and unclamping operations of the clamp claws 33 are performed by a cylinder (not shown).

The holding plate 35 is connected to a lower end of a piston rod 39 of an upper and lower cylinder 38 disposed above the holding plate 35, and is movable up and down together with the clamp claw 33.
Further, the upper and lower cylinders 38 are connected to the distal ends of the piston rods 43 of the transport cylinder 41, and
7 and a position above the core dispensing rail 19. In addition, the transfer mechanism 27
It is omitted in FIG.

As shown in FIG. 2, each receiving jig 13a, 1
At the lower part of 3b, 13c, swivel arms 45a, 45b,
The other ends of the 45c are connected to each other.
Of these, the turning arm 45a is directly fixed to the lower surface of the receiving jig 13a, the turning arm 45b is fixed to the receiving jig 13b via the block 47 at a position below the turning arm 45a, and the turning arm 45c is turned. Arm 45b
Is fixed to the receiving jig 13c via the block 49 at a position below the.

As shown in FIG. 1, the base end, which is one end of each of the swiveling arms 45a, 45b, 45c, is rotatable about a rotating support shaft 51a, 51b, 51c provided on an unillustrated apparatus base. It is connected to. Also, FIG.
Each of the turning arms 45a and 45
b, 45c for turning the offset cylinder 53a,
53b and 53c are arranged.

Offset cylinders 53a, 53b, 5
3c is rotatably connected at its base end to rotating support shafts 55a, 55b, 55c erected on the above-mentioned apparatus base, and the distal ends of its piston rods 57a, 57b, 57c are connected to the respective rotating arms 45a. , 45b, 45c are rotatably connected to the vicinity of the distal end. In other words, the driving of the offset cylinders 53a, 53b, 53c causes the respective turning arms 45a, 45b, 45c to rotate the rotation support shafts 51a, 51c.
b, 51c, and the receiving jig 13
a, 13b, and 13c move between the solid line position and the two-dot chain line position.

FIG. 4 is a perspective view showing details of the nozzle 15a and a mechanism associated therewith. Although only the nozzle 15a is shown here, the other two nozzles 15b and 15c and their associated mechanisms are the same as those in FIG.

The nozzle 15a has a pair of rollers 63 and 65 rotatably mounted on an L-shaped bracket 61 mounted near the tip of a long frame 59.
At the further tip side of the frame 59, an attachment 67
The attachment 67 is provided with three guide rollers 69, 71, 73 that rotatably guide the wire 11 a drawn out from between the pair of rollers 63, 65.

The wire 11a is guided to the front side of the paper surface in FIG. 4 with respect to the guide roller 69, is guided to the back side of the paper surface with respect to the guide roller 71, and is further guided to the front side of the paper surface with respect to the guide roller 73. When the entire frame 59 rotates in the direction indicated by the arrow N in this state, the wire 11a is wound around the wound portion 29 of the core 7a.

A wire supply motor 79 is mounted on the base end side of the frame 59, and a wire supply reel 81 around which the wire 11a is wound is rotatably connected to the wire supply motor 79. As the wire supply reel 81 rotates, the wire 11a is sequentially supplied to the nozzle 15a side.

The base end of the frame 59 has a bent portion 83 bent in an L-shape, and a nozzle rotating motor for rotating the entire frame 59 in the above-described arrow N direction is provided at the distal end side of the bent portion 83. 85 drive shafts 87 are connected.

The nozzle rotation motor 85 constitutes a rotation drive mechanism, and the frame 59, the wire supply motor 79 and the wire supply reel 81 rotate in the same direction as the nozzle turning direction by the rotation drive mechanism. It constitutes a wire rod supply unit.

Next, the operation will be described. In FIG. 2, the core 7 on the core dispensing rail 19 has already been wound, and the wire rods 11a, 11b, and 11c are pulled out from these three cores as shown in FIG. This reaches the nozzle 15a (15b, 15c) shown in FIG. Then, as shown in FIG. 2, the three cores 7 are transferred from the core supply rail 17 by the transfer mechanism 27 and set in the three receiving jigs 13a, 13b, 13c.

From this state, the transfer mechanism 27 unclamps the core 7 with the clamp claw 33 and
Is driven to raise the clamp claw 33. And
The offset cylinders 53a, 53 shown in FIG.
b, 53c, the respective turning arms 45a, 45
The b and 45c rotate counterclockwise in FIG. 1 around the rotation support shafts 51a, 51b and 51c, and accordingly, the cores 7a and
7b and 7c, together with the receiving jigs 13a, 13b and 13c, are offset-moved from the solid line position on the transport line 9 to the two-dot chain line position in the directions indicated by A, B and C, respectively. As a result of this movement, each of the cores 7a, 7b, 7c causes the wires 11a, 11b,
11c comes into contact with each other, and the winding starts.

Here, when the core 7c is offset, the positions of the nozzles 15a and 15b are adjusted so that the core 7c does not interfere with the nozzles 15a and 15b. The position of the nozzle 15a is adjusted so that the nozzle 7b does not interfere with the nozzle 15a. Alternatively, to prevent the interference described above,
The entire mechanism shown in FIG. 4 including the nozzles 15a, 15b, and 15c may be movable in a vertical direction (a direction perpendicular to the paper surface in FIG. 1), and may stand by at the time of the offset movement.

In this state, by driving the nozzle rotation motor 85 shown in FIG.
By rotating the guide roller 73 on the leading end side in the direction of arrow N together with a, 15b, and 15c,
9 and at the same time, the wire feed motor 7
By driving the wire 9, the wires 11 a, 11 b, 11 c are sequentially supplied, and the supplied wires 11 a, 11 b, 11 c are wound around the core 7.

This winding operation is performed by the nozzles 15a, 15
Since the entire frame 59 to which the wire supply motor 79 and the wire supply reel 81 are attached is rotated instead of simply turning the b and 15c, the wire 11
The twisting of a, 11b, and 11c is avoided, and the operation can be performed smoothly.

Wire rod 11 for cores 7a, 7b, 7c
When the winding operations of a, 11b, and 11c are completed, the cores 7a, 7b, and 7c are arranged in the order of the cores 7a, 7b, and 7c.
The offset cylinders 53a, 53b and 53c are sequentially driven so that the receiving jig 13c is returned onto the transport line 9, and the receiving jig 13 is moved.
a, 13b, and 13c are returned to the transport line 9. Core 7
When returning a, 7b, 7c to the transport line 9, the wire feed motor 79 is driven to drive the nozzles 15a, 15b, 15c.
The wire rods 11a, 11b and 11c are supplied from c as appropriate.

When returning the core 7b onto the transport line 9,
When the core 7b does not interfere with the nozzle 15a, and when the core 7c is returned on the transport line 9, the same measures as in the above-described offset movement are performed so that the core 7c does not interfere with the nozzles 15b and 15a.

Thereafter, the upper and lower cylinders 38 are driven to lower the clamp claws 33, and the cores 7a, 7
b and 7c are clamped respectively, and in this state, the cores 7a and 7c are clamped.
7b and 7c are slightly lifted from the concave receiving surfaces 25 of the receiving jigs 13a, 13b and 13c, and
By the drive of 1, the wound core 7 is moved leftward in FIG. 2 so as to be pushed out, and is transferred onto the payout rail 19.

By this transfer, each core 7a, 7b, 7c
Comes closer to the nozzles 15a, 15b, 15c, respectively.
The wires 11a, 11b, and 11c that are unwound from c are loosened. For this reason, at this time, the wire rod supply motor 79 is appropriately rotated in the reverse direction so that the wire rods 11a, 11b, 11
c is pulled back from each of the nozzles 15a, 15b, and 15c to prevent the wires 11a, 11b, and 11c from being entangled by loosening, and to provide sufficient tension at the next winding to improve the winding. . Therefore, the wire supply motor 79 constitutes a pull-back means for pulling the wire back to the nozzle side.

When the transfer of the wound cores 7a, 7b, 7c to the payout rail 19 is completed, the clamp claws 33 are
The upper and lower cylinders 37 are raised by driving the upper and lower cylinders 37 in an unclamped state.
Next, the wire is moved to a position above the three cores 7 conveyed on the core supply rail 17 to wind the wire.
Then, the three cores 7 on the core supply rail 17 are clamped by the clamp claws 33, and the receiving jigs 13a, 13
b and 13c, and thereafter, the winding operation is continuously performed in the same manner.

As described above, according to the winding method using the above-described winding device, when the wires 11a, 11b, 11c are wound around the plurality of cores 7a, 7b, 7c, the cores 7a, 11b, 11c are wound.
Receiving jigs 13a, 13b, 13 on which 7b, 7c are set
c is offset to a position having a swivel space for the nozzles 15a, 15b, 15c, so that the wires 11a,
The winding speed of the cores 11b, 11c around the cores 7a, 7b, 7c can be increased, and the productivity is improved.
In addition, a rotatable table is not required together with the core 7 when the nozzles 15a, 15b, and 15c are fixed, thereby avoiding an increase in the size of the entire apparatus.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing a winding device according to an embodiment of the present invention.

FIG. 2 is a view as seen from an arrow L in FIG. 1;

FIG. 3 is a view as viewed in a direction indicated by an arrow M in FIG. 2;

FIG. 4 is a perspective view showing details of a nozzle and a mechanism accompanying the nozzle.

FIG. 5 is a plan view schematically showing a winding method showing a conventional example.

FIG. 6 is a front view schematically showing a winding method showing a conventional example.

[Explanation of symbols]

 9 Conveying line 7 (7a, 7b, 7c) Core 11a, 11b, 11c Wire rod 13a, 13b, 13c Receiving jig 15a, 15b, 15c Nozzle 19 Core dispensing rail (transporting support means) 27 Transfer mechanism 45a, 45b, 45c Revolving arm 59 Frame (wire supply unit) 79 Wire supply motor (wire supply unit, pull-back means) 81 Wire supply reel (wire supply unit) 85 Nozzle rotation motor (rotation drive mechanism)

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5E002 AB02 AB03 5H002 AA07 5H615 AA01 BB01 BB14 PP13 QQ02 QQ19 QQ25 SS10 SS11

Claims (10)

[Claims] 1. A winding method for winding a wire around a plurality of divided cores sequentially conveyed on a conveying line, wherein a plurality of receiving jigs are arranged such that the cores are arranged adjacent to each other along the conveying line. Each of the receiving jigs is set together with the core, at a position deviating from the transport line together with the core, and moved to a position having a swirling operation space of a plurality of nozzles for feeding the wire rod around the same, A winding method, wherein a wire rod fed from the nozzle is wound around the core while rotating each nozzle around the core. 2. The method according to claim 1, wherein after the winding is completed, each of the receiving jigs is returned together with the core onto the conveying line, and the core on the receiving jig is transferred onto the conveying support means on the conveying line. Winding method. 3. The winding method according to claim 2, wherein, after the core on the receiving jig is transferred onto the transfer support means on the transfer line, the wire is pulled back to the nozzle side. 4. The wire feeder according to claim 1, wherein a wire feeder for sequentially feeding wire to the nozzle is rotated in the same direction as the swirling direction in accordance with the swiveling operation of the nozzle. Winding method. 5. A transport line for sequentially transporting a plurality of divided cores, a plurality of nozzles for winding wires wound around the plurality of cores while rotating around the plurality of cores, and the plurality of cores, respectively. A plurality of receiving jigs movable from positions adjacent to each other along the transport line to positions deviated from the transport line, and to a position around each of the plurality of nozzles for a pivoting operation space; A winding device comprising: 6. The winding device according to claim 5, wherein the receiving jig is provided at the other end of the revolving arm which is rotatable in a horizontal direction with one end serving as a fulcrum. 7. A transfer mechanism for setting a plurality of cores on a receiving jig while holding the plurality of cores, and transferring the cores returned to the transfer line after the winding is completed to transfer support means on the transfer line. 6. The method according to claim 5, wherein
Or the winding device according to 6. 8. The winding device according to claim 7, further comprising a pull-back means for pulling back the wire between the core and the nozzle transferred onto the transfer support means by the transfer mechanism toward the nozzle. 9. A rotary drive mechanism for rotating a wire feeder for sequentially feeding a wire to the nozzle in accordance with the swirling direction of the nozzle in the same direction as the swirling direction. 9. The winding device according to any one of claims 1 to 8. 10. The winding device according to claim 9, wherein the wire supply unit is provided so as to be rotatable integrally with the nozzle.