JP2016024972A - Manufacturing method of aggregated conductor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method of an aggregated conductor suppressing occurrence of un-twisting and being capable of winding a twisted wiring bundle without the need of rotation of a winding implement.SOLUTION: A manufacturing method of an aggregated conductor (8) formed by using a twisted wiring bundle (4) having a shape where right twisted portions (4a) twisted in a clockwise direction and left twisted portions (4b) twisted in a counter-clockwise direction are alternately and repeatedly formed in a longitudinal direction when being viewed from an upstream side toward a downstream side reverses the right twisted portions (4a), winds the right twisted portions (4a), reverses the left twisted portions (4b) adjacent to the right twisted portions (4a) in a direction opposite to a reversal direction of the right twisted portions (4a), winds the left twisted portions (4b) and forms one set of reversed phase winding (5) in a reversed phase winding formation step (S5), and winds and stores the reversed phase winding (5) for each one set in a fixed storage container (19) in a winding and storage step (S6).SELECTED DRAWING: Figure 2

Description

  The present invention relates to a method for manufacturing a collective conducting wire, and more particularly to a method for producing a collective conducting wire including a winding step of winding a twisted wire bundle.

  Collective conducting wires having a polygonal cross section are widely used. For example, Patent Document 1 discloses a rectangular formed stranded wire that is manufactured by twisting wires made of a conductive material to form a preliminary stranded wire, forming a stranded wire bundle from the preliminary stranded wire, and further compression molding. Has been. In the same document, it is disclosed that a flat formed stranded wire is wound up by a winding tool such as a winding drum or a winding spool.

JP 2009-0878868 A

  By the way, the manufacturing method of an assembly conducting wire may include the intermittent process which sends a twisted wire bundle to the next process intermittently, and the continuous process which sends a twisted wire bundle to the next process continuously.

  As the intermittent process, for example, there is a twisting process of twisting the wire bundle. In an example of the twisting process, two distant locations in a plurality of strands are gripped by two fixed chucks, while one portion between the fixed chucks is gripped by one rotating chuck and rotated. Therefore, the twisted wire bundle is intermittently sent to the next process.

  As the continuous process, for example, there is a finish rolling process that rolls the wire bundle into a predetermined cross-sectional shape. In an example of the finish rolling process, the wire bundle is rolled using a rolling roll, and thus is continuously sent to the next process.

  In the conventional method of manufacturing a collective conducting wire, there may be a difference between the production rate of the twisting process and the production rate of the finish rolling process. Therefore, the inventors of the present application have conceived the manufacturing method shown in FIG. FIG. 15 is a schematic diagram of a related manufacturing method 1. In the related manufacturing method 1, the twisted wire bundle 804 is manufactured from the strand 801 using the manufacturing apparatus 810 in the intermittent process, and the assembly conductor 808 is manufactured from the twisted wire bundle 805 using the manufacturing apparatus 820 in the continuous process. Specifically, in the intermittent process, the plurality of strands 801 are sent to the first rolling roll 812 by the strand feeder 811 and processed into a predetermined cross-sectional shape by the first rolling roll 812 to form the conducting wire 802. Subsequently, the conducting wire 802 processed by the first rolling roll 812 passes through the multi-stage roll 813 and is sent to the transport device 814. Here, the delivery speed of the conducting wire 802 may be adjusted by the multistage roll 813. Each of the conductive wires 802 is expanded by the transfer device 814 so as to extend radially about the axis of the fixed chuck 815, and then sent to the fixed chuck 815 so as to gather them. The developed conducting wire 802 is bundled by the fixed chuck 815, whereby the conducting wire bundle 803 is formed.

  Subsequently, the conductive wire bundle 803 passes through the fixed chuck 815, the rotary chuck 816 and the fixed chuck 817. The fixed chuck 815, the rotary chuck 816, and the fixed chuck 817 grip the conductor bundle 803, and only the rotary chuck 816 rotates, whereby the conductor bundle 803 is twisted. Then, the twisted wire bundle 804 is formed by twisting the conducting wire bundle 803. The twisted wire bundle 804 is formed intermittently and wound up by the winding spool 819 each time.

  Thereafter, the take-up spool 819 on which the twisted wire bundle 804 is taken up is set at a predetermined position in the subsequent step 820 (the take-up spool set in the continuous step is referred to as a take-up spool 821). ) Subsequently, the stranded wire bundle 805 previously wound on the winding spool 821 is sent to the second rolling roll 823. Further, the twisted wire bundle 805 is processed into a predetermined cross-sectional shape by the second rolling roll 823 to form a processed wire bundle 807. The processed wire bundle 807 is sent to the third rolling roll 824 by the second rolling roll 823, and the processed wire bundle 807 is further processed into a predetermined cross-sectional shape by the third rolling roll 824 to form the collective conducting wire 808. From the above, the collective conducting wire 808 is obtained.

  In this manufacturing method, similarly to the manufacturing method of the collective conducting wire disclosed in Patent Document 1, the winding wire is taken up by the winding spool, which is a winding tool. Therefore, the influence of the production rate difference between the intermittent process and the continuous process is affected. Can be suppressed. On the other hand, when winding the stranded wire bundle 804 using the take-up spool 819, the stranded wire bundle 804 is kinked and a part of the stranded wire bundle 804 becomes a ring, so-called twisting occurs. For this reason, in order to suppress twisting of the twisted wire bundle 804, it is necessary to rotate the winding spool 819.

  However, in order to rotate the winding spool, a rotating device for rotating the winding spool is required. In particular, when the weight of the take-up spool increases, there is a problem that the device for rotating the take-up spool becomes larger and the cost increases.

  Therefore, the present invention has been made against the background described above, and provides a method of manufacturing a collective conducting wire that can be wound while suppressing the occurrence of return without the need to rotate the winding tool. Objective.

The manufacturing method of the collective conducting wire according to the present invention is as follows.
Using a twisted wire bundle having a shape in which a right twisted portion twisted in a clockwise direction and a left twisted portion twisted in a counterclockwise direction are alternately repeated in the longitudinal direction when viewed from the upstream side toward the downstream side A method of manufacturing a collective conducting wire formed by:
The right twisted portion is reversed to wind the right twisted portion, the left twisted portion adjacent to the right twisted portion is reversed in a direction opposite to the reverse direction of the right twisted portion, and the left twisted portion is wound. A reverse phase winding process for forming a reverse phase winding of the set;
A winding and storing step of winding and storing the reverse phase winding in a set in a stationary container;
including.

  According to such a configuration, when the stranded wire bundle is accommodated in the storage container, the reverse phase winding is wound and stored for each set. Can be wound up.

In the reverse phase winding forming step, the boundary between the right twist portion and the left twist portion adjacent to each other, one end (for example, the parallel portion 4c1) on the right twist portion side, and one end (for example, the left twist portion side) , The parallel portion 4c3) with three non-rotating clamps, a part of the right-hand twisted portion with a normal rotation clamp, and after separating the normal rotation clamp from the axis of the twisted wire bundle, Winding the right twisted portion by crossing the axis of the wire bundle or reversing around a first virtual axis crossing the axis of the twisted wire bundle, and a part of the left twisted portion adjacent to the right twisted portion After gripping with a reversing clamp and separating the reversing clamp from the axis of the strand bundle, the forward rotation about the second virtual axis intersecting the axis of the strand bundle or crossing the axis of the strand bundle Invert in the opposite direction of the clamp It may also be characterized by winding the left torsion portion by.
Further, when the reverse phase winding is viewed in plan view from the lamination direction side of the twisted wire bundle, the right twisted portion is wound counterclockwise around the winding axis of the twisted wire bundle, and the left twisted portion is It may be characterized by being wound clockwise around the winding axis of the twisted wire bundle.
Further, in the reverse phase winding forming step, the right twist portion of the one set of reverse phase windings is arranged in one direction of the third virtual axis around a third virtual axis crossing the axis of the twisted wire bundle. It is wound once so as to advance, and one direction of the third virtual axis is a twist direction of the inner peripheral surface of the right twist portion, and the left twist portion of the one set of reverse phase winding is It is wound once around the fourth imaginary axis crossing the axis of the twisted wire bundle so as to advance in one direction of the fourth imaginary axis, and one direction of the fourth imaginary axis is the left The twist direction may be a twist direction of the inner peripheral surface of the torsion part.
Further, the storage container includes a cylindrical storage space, and the relationship between the circumferential length L of the right twist portion and the left twist portion and the diameter D of the cylindrical storage space is:
0.5πD ≦ L ≦ πD
It is good also as a feature.

  According to such a configuration, it is possible to wind the stranded wire bundle more reliably without causing the winding tool to rotate, and more reliably suppressing the occurrence of reversion.

  In the winding storage step, the twisted wire bundle is wound and stored in a plurality of the storage containers, and after the winding storage step, the twisted wire bundles included in the plurality of storage containers are connected to each other, It may be characterized by including a finish rolling step of forming a collective conducting wire by finish rolling the wire bundle.

  According to such a structure, even if the finish rolling process is operating, a twisted wire bundle can be continuously supplied to the finish rolling process.

  In addition, before the reverse phase winding forming step, the plurality of strands are gripped by two fixed chucks, and are gripped by at least three rotary chucks disposed between the two fixed chucks. Including a twisted wire bundle forming step of twisting the plurality of strands by rotating all, and forming the twisted wire bundle by sequentially stopping the rotation of the rotating chuck from both ends outside the plurality of rotating chucks. It may be a feature.

  According to such a configuration, even a long strand bundle can be stably formed.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the assembly conducting wire which can suppress winding generation | occurrence | production and can wind up a twisted wire bundle can be provided, without having to rotate a winding tool.

3 is a flowchart of the manufacturing method according to the first exemplary embodiment. 1 is a schematic diagram of a manufacturing method according to a first embodiment. FIG. 3 is a schematic diagram of one step of the manufacturing method according to the first embodiment. It is a figure which shows the rotation and stop timing of each chuck | zipper. It is a figure which shows the rotation and stop timing of each chuck | zipper. 3 is a flowchart of one step of the manufacturing method according to the first exemplary embodiment. It is a side view of a twisted wire bundle. FIG. 3 is a schematic diagram of one step of the manufacturing method according to the first embodiment. FIG. 3 is a schematic diagram of one step of the manufacturing method according to the first embodiment. FIG. 3 is a schematic diagram of one step of the manufacturing method according to the first embodiment. FIG. 3 is a schematic diagram of one step of the manufacturing method according to the first embodiment. It is a side view of the strand wire bundle in 1 process of the manufacturing method concerning Embodiment 1. FIG. It is a side view of the strand wire bundle in 1 process of the manufacturing method concerning Embodiment 1. FIG. FIG. 3 is a schematic diagram of a twisted wire bundle in one step of the manufacturing method according to the first embodiment. FIG. 3 is a schematic diagram of one step of the manufacturing method according to the first embodiment. It is a schematic diagram of the related manufacturing method 1. It is a schematic diagram of the related manufacturing method 2.

Embodiment 1 FIG.
The manufacturing method according to the first embodiment will be described with reference to FIGS. FIG. 1 is a flowchart of the manufacturing method according to the first embodiment.

  FIG. 2 is a schematic diagram of the manufacturing method according to the first embodiment. As shown in FIG. 2, the stranded wire bundle 4 is manufactured from the strand 1 using the manufacturing apparatus 10 in the intermittent process, and the collective conducting wire 8 is manufactured from the stranded wire bundle 4 using the manufacturing apparatus 20 in the continuous process. Specifically, first, the strand feeder 11 sends the plurality of strands 1 to the first rolling roll 12. The strand 1 is a linear body made of, for example, pure copper or a copper alloy. This linear body has, for example, a substantially circular cross-sectional shape. The strands 1 are arranged in a line in a direction (X direction) perpendicular to the feeding direction of the strands 1 (longitudinal direction of the strands 1, that is, the Z-axis direction).

  The 1st rolling roll 12 receives the some strand 1 from the strand supply machine 11, and plastically deforms at least one part of the some strand 1 and forms the some conducting wire 2 (strand rolling process S1) ). Here, the cross-sectional shape of the conductive wire 2 plastically deformed is changed from, for example, a circular shape having isotropicity in which the cross-sectional shape does not change by rotation to an anisotropic cross-sectional shape having anisotropy in which the cross-sectional shape changes by rotation. It may be deformed, for example, it is deformed into a trapezoid shape in which the lengths of the upper and lower bases are different. Examples of the anisotropic cross-sectional shape include a trapezoidal shape, a fan shape, an arc shape, and a triangular shape. In addition, you may maintain the cross-sectional shape of the strand 1 as it is, without the remainder of the conducting wire 2 plastically deforming. The conductive wires 2 are arranged in a line in a direction (X direction) perpendicular to the delivery direction of the conductive wires 2 (the longitudinal direction of the conductive wires 2, that is, the Z-axis direction).

  The first rolling roll 12 has a pair of rolls, is rotated by a driving mechanism (not shown), and sends the plurality of conductive wires 2 to the transport device 14 via the multistage roll 13. The multistage roll 13 includes a pair of stationary rolls that are stationary, and a movable roll that can approach or be separated from the pair of rolls. The multistage roll 13 can adjust the speeds of the plurality of conducting wires 2 sent out from the first rolling roll 12 to the conveying device 14. In addition, you may abbreviate | omit the multistage roll 13 as needed.

  The conveying device 14 receives the plurality of conductive wires 2 from the first rolling roll 12. The conveying device 14 develops each wire of the conducting wire 2 and creates a positional relationship in which each wire of the conducting wire 2 surrounds the central axis 15 c of the fixed chuck 15. More specifically, the conducting wires 2 are arranged radially around the central axis 15c (deployment step S2). In order to stably carry out the bundling step S3 of the next step, the transport device 14 may appropriately adjust the position and orientation of the conductor 2. The conveying device 14 sends the plurality of conductive wires 2 to the fixed chuck 15. The conveying device 14 may send a part of the conducting wire 2, for example, one conducting wire 2 disposed near the center to the fixed chuck 15 as it is without developing it.

  Subsequently, the fixed chuck 15 receives the plurality of conductive wires 2 from the transport device 14. The fixed chuck 15 aligns the plurality of conductors 2 to form a bundled conductor bundle 3 (bundling step S3). The fixed chuck 15 applies a predetermined pressure to the conductor bundle 3 toward the center of the conductor bundle 3. In the cross section of the conductor bundle 3, the conductors 2 are close to each other or are in close contact with each other. The wire bundle 3 passes through the fixed chuck 15 and the three rotary chucks 16 and is conveyed to the fixed chuck 17.

  The fixed chuck 15, the rotating chuck 16, and the fixed chuck 17 hold the conductor bundle 3 and fix the shaft of the conductor bundle 3. Further, all the rotating chucks 16 start rotating in the same direction while the fixed chuck 15, the rotating chuck 16, and the fixed chuck 17 hold the wire bundle 3, and among all the rotating chucks 16, the rotating chucks are formed from outside both ends thereof. The wire bundle 3 is twisted by sequentially stopping the rotation of 16. (Strand bundle forming step S4). Then, the conducting wire bundle 3 is twisted stepwise to form a stranded wire bundle 4.

(Specific example of stranded wire bundle forming step S4)
Here, the detail is demonstrated about the specific example of twisted wire bundle formation process S4 using FIGS. 3-5. FIG. 3 is a schematic diagram of one step of the manufacturing method according to the first embodiment. 4 and 5 are diagrams showing the rotation and stop timing of each chuck. In this specific example, the twisted wire bundle forming step S4 was performed using five rotating chucks 16.

  As shown in FIG. 3, the rotating chucks 16 a, 16 b, 16 c, 16 d, and 16 e (hereinafter referred to as rotating chuck 16 a to rotating chuck 16 e) are arranged in this order from the fixed chuck 15 toward the fixed chuck 17. Yes. Here, between the fixed chuck 15 and the rotating chuck 16a, between the rotating chuck 16a and the rotating chuck 16b, between the rotating chuck 16b and the rotating chuck 16c, between the rotating chuck 16c and the rotating chuck 16d, and between the rotating chuck 16d. And the rotating chuck 16e and the portions of the conductor bundle 3 between the rotating chuck 16e and the fixed chuck 17 are torsion parts 3a, 3b, 3c, 3d, 3e, and 3f, respectively.

  The fixed chuck 15, the rotary chuck 16 a to the rotary chuck 16 e and the fixed chuck 17 clamp the conductor bundle 3 and fix the shaft of the conductor bundle 3. As shown in FIG. 4, first, before the start of twisting, the rotation chucks 16 a to 16 e all stop rotating.

  4 and 5 together, at the start of twisting, the fixed chuck 15, the rotary chuck 16a to the rotary chuck 16e and the fixed chuck 17 substantially clamp the wire bundle 3 while the rotary chuck 16a to the rotary chuck 16e are substantially At the same time, when viewed from the upstream side (fixed chuck 15 side) to the downstream side (fixed chuck 17 side), rotation starts in the clockwise direction. Then, the twisted portion 3a is twisted clockwise from the upstream side toward the downstream side, thereby forming the right twisted portion 4aa (see FIG. 5). Further, the twisted portion 3f is twisted counterclockwise from the upstream side toward the downstream side, whereby the left twisted portion 4bf is formed.

  When the twisted portions 3a and 3f are completely twisted, the rotation chuck 16a and the rotation chuck 16e stop rotating, and the rotation chuck 16b to the rotation chuck 16d continue to rotate. Then, the torsion part 3b is twisted clockwise from the upstream side toward the downstream side, thereby forming the right twist part 4ab. Further, the twisted portion 3e is twisted counterclockwise from the upstream side toward the downstream side, whereby the left twisted portion 4be is formed.

  When twisting of the to-be-twisted parts 3b and 3e is completed, the rotation chuck 16b and the rotation chuck 16d stop rotating, and the rotation chuck 16c continues to rotate as it is. Then, the torsion part 3c is twisted clockwise from the upstream side toward the downstream side, thereby forming the right torsion part 4ac. Further, the twisted portion 3d is twisted counterclockwise from the upstream side toward the downstream side, whereby the left twisted portion 4bd is formed. The right twist portion 4ac and the left twist portion 4bd are formed with each other so as to be merged by the rotary chuck 16c. A parallel portion 4c may be formed at the boundary between the right twist portion 4a and the left twist portion 4b. Each conducting wire included in the parallel portion 4 c is not twisted, that is, substantially parallel to the axis of the twisted wire bundle 4.

  When the twisting of the to-be-twisted portions 3c and 3d is completed, the rotary chuck 16c stops. The right twisted portion 4aa, the right twisted portion 4ab, and the right twisted portion 4ac are connected to form the right twisted portion 4a. The left twisted portion 4bd, the left twisted portion 4be, and the left twisted portion 4bf are connected to form the left twisted portion 4b. In the conductor bundle 3, a right twist portion 4a and a left twist portion 4b are formed with the rotary chuck 16c as a boundary. As described above, in the twisted wire bundle forming step S4, at least three rotary chucks are installed between the fixed chucks, and stopped in order from the outer rotary chuck to form a twisted portion. Therefore, a part of the wire bundle can be sequentially twisted from the outside, and a right twist portion and a left twist portion can be formed stepwise. Therefore, even if it is a long conducting wire bundle, the shape as a bundle can be maintained and twisted stably without breaking.

  When the twisted wire bundle forming step S4 is repeated a plurality of times, a twisted wire bundle 4 having a plurality of adjacent right twisted portions 4a and left twisted portions 4b and having a shape alternately repeated in the longitudinal direction is formed.

  Next, the right twisted portion 4a of the twisted wire bundle 4 is reversed and the right twisted portion 4a is wound, and the left twisted portion 4b adjacent to the right twisted portion 4a is reversed in the direction opposite to the reverse direction of the right twisted portion 4a. The part 4b is wound to form one set of reverse phase winding (reverse phase winding forming step S5). A specific example of the reverse phase winding forming step S5 will be described with reference to FIGS. FIG. 6 is a flowchart of one process of the manufacturing method according to the first embodiment. FIG. 7 is a side view of a twisted wire bundle. 8 to 11 and FIG. 14 are schematic views of one step of the manufacturing method according to the first embodiment. 12 and 13A are side views of the twisted wire bundle in one step of the manufacturing method according to the first embodiment. FIG. 13B is a schematic diagram of a twisted wire bundle in one step of the manufacturing method according to the first exemplary embodiment. In addition, in FIGS. 8-11, FIG. 13B, and FIG. 14, the twist direction of the right twist part 4b of the twisted wire bundle 4 and the left twist part 4b is described typically similarly to the description shown in FIG. The right twist portion 4a is described using a thick line, and the left twist portion 4b is described using a thin line as compared with the right twist portion 4a.

  As shown in FIG. 8, the stranded wire bundle 4 that is the target for forming the reverse phase winding includes the left twisted portion 4b2, the parallel portion 4c1, the right twisted portion 4a1, the parallel portion 4c2, and the left twisted portion 4b1. The part 4c3 is provided in this order from the upstream side to the downstream side. Below, the case where 1 set of reverse phase winding is formed from the right twist part 4a1 and the left twist part 4b1 is demonstrated.

  First, as shown in FIG. 8, the non-rotating clamps 25 to 27 are moved toward the upstream side of the stranded wire bundle 4. The rotation shafts of the non-rotating clamps 25 to 27 are fixed so as not to rotate. Subsequently, as shown in FIG. 9, the parallel portions 4c1, 4c2, and 4c3 are respectively gripped by the non-rotating clamps 25 to 27, the right twist portion 4a1 is gripped by the forward rotation clamp 28, and the left twist portion 4b1 is reversely clamped 29. Is gripped (gripping step S51). Specifically, the non-rotating clamps 25 to 27 hold the twisted wire bundle 4 from above, and the forward rotation clamp 28 and the reverse rotation clamp 29 hold the twisted wire bundle 4 from below.

  Subsequently, as shown in FIG. 10, the non-rotating clamps 25 and 26, the forward rotation clamp 28, and the reverse rotation clamp 29 are moved to the downstream side, and the stranded wire bundle 4 is sent to the downstream side (feeding step S52). More specifically, the forward rotation clamp 28 and the reverse rotation clamp 29 are spaced apart from the axis A0 of the stranded wire bundle 4 by a predetermined distance while the non-rotation clamps 25 and 26 are brought close to the non-rotation clamp 27. Then, the reverse rotation clamp 29 is moved downstream. In other words, the non-rotating clamps 25 and 26, the forward rotation clamp 28, and the reverse rotation clamp 29 are arranged so that the right twist portion 4a1 and the left twist portion 4b1 bend.

  Subsequently, as shown in FIG. 11, by rotating the forward rotation clamp 28 around the first virtual axis A1 in the reverse direction, the right twist portion 4a1 is wound and the reverse rotation clamp 29 is moved to the second virtual axis A2. The left twisted portion 4b1 is wound around by rotating in the direction opposite to the reverse direction (reversing step S53). Then, the right twisted portion 4a1 and the left twisted portion 4b1 are wound in a predetermined direction to form one set of reverse phase wound portions 51. Here, the first virtual axis A1 intersects the axis A0 of the stranded wire bundle 4 or crosses the axis A0 of the stranded wire bundle 4. The second imaginary axis A2 intersects the axis A0 of the stranded wire bundle 4 or crosses the axis A0 of the stranded wire bundle 4.

  More specifically, as shown in FIG. 12, the reverse phase winding part 51 has a right twist part 4a1 and a left twist part 4b1 adjacent to the right twist part 4a1.

  The right twist portion 4a1 is wound counterclockwise around the virtual axis A3 as viewed from the front side of the drawing. The left twisted portion 4b1 is wound clockwise around a virtual axis A4 parallel to the virtual axis A3 as viewed from the front side of the drawing. That is, the right twist portion 4a1 and the left twist portion 4b1 are wound in opposite directions.

  As shown in FIG. 13A, FIG. 13B, and FIG. 14, the stranded wire bundle 4 is sent to the downstream side so that the right twisted portion 4a1 is superimposed on the left twisted portion 4b1 (superposition step S54). Specifically, while maintaining one set of reverse phase winding by the right twist portion 4a1 and the left twist portion 4b1, one turn by the right twist portion 4a1 is overlapped with one turn by the left twist portion 4b1. More specifically, the forward rotation clamp 28 and the reverse rotation clamp 29 are also moved to the downstream side while the non-rotation clamps 25 and 26 are brought into close contact with or closer to the non-rotation clamp 27. As shown in FIG. 13A, the left twisted portion 4b1 and the right twisted portion 4a1 are arranged in the order of the left twisted portion 4b1 and the right twisted portion 4a1 from the front to the back of the drawing.

  In other words, when the reversed phase winding part 51 is viewed in plan from the lamination direction side of the twisted wire bundle 4, the right twisted part 4a1 is counterclockwise about the winding axis Y1 of the twisted wire bundle 4 (see FIGS. 2 and 13B). The left twisted portion 4b1 is wound clockwise around the winding axis Y1 of the stranded wire bundle 4 (see FIGS. 2 and 13B).

Next, referring to FIG. 2 again, the reverse phase winding portion 51 is accommodated in the accommodation container 19 for each set (winding storage step S6). Then, the plurality of reversed phase winding portions 51 are stacked in the winding axis Y1 direction for each set in the storage space of the storage container 19. As the storage container 19, for example, a container having a columnar storage space or a cylindrical container such as a pail back can be used. The container 19 is placed at a predetermined position and does not need a function of rotating. Moreover, you may accommodate the reverse phase winding part 5 in each storage container using the some storage container 19. As shown in FIG. When the storage container 19 includes a cylindrical storage space, the relationship between the diameter D of the storage space and the circumferential length L of the right twist portion 4a and the left twist portion 4b is
0.5πD ≦ L ≦ πD (Formula 1)
Is preferable. When L is 0.5πD or more, the reversed-phase wound portions 51 are laminated with the reversed-phase wound portions 51 partially overlapping each other. Therefore, the plurality of reversed phase winding parts 51 are stably stacked in the storage container 19. On the other hand, when L is equal to or less than πD, the diameter of the reversed phase winding portion 51 is the same as or smaller than the diameter D of the accommodation space. Therefore, the reverse phase winding part 51 can be stably accommodated in the accommodating space of the accommodating container 19. When this relationship is established, the winding tool can be wound more reliably and more reliably without the need for rotating the winding tool.

  Next, the stranded wire bundle 4 is finish-rolled to form a collective conducting wire 8 (finish rolling step S7). Specifically, in the winding storage step S <b> 6, the plurality of reversed phase winding portions 5 are previously stored in the storage containers 21 a and 21 b, and the stranded wire bundle 4 is sent from the storage container 21 b to the second rolling roll 23. In the winding storage step S6, the stranded wire bundle 4 (reverse phase winding portion 5) is stored in the plurality of storage containers 19, and after the winding storage step S6, the stranded wire bundles 4 included in the plurality of storage containers 21a and 21b May be connected, and the stranded wire bundle 4 included in the container 19 may be connected to these. The second rolling roll 23 includes a pair of rolls that are rotated by a driving mechanism (not shown), and further, by forming the twisted wire bundle 4 in the horizontal direction, the processed wire bundle 7 is formed, and the processed wire bundle 7 is formed. It sends to the 3rd rolling roll 24. The third rolling roll 24 includes a pair of rolls that are rotated by a driving mechanism (not shown), and further, the assembly conductor 8 is formed by compression-forming the processed wire bundle 7 in the vertical direction.

  The collective conducting wire 8 is obtained by the above process. The collective conducting wire 8 can be used, for example, when forming a motor coil.

  As mentioned above, according to the manufacturing method concerning Embodiment 1, while forming a reverse phase winding by winding a right twist part and a left twist part so as to correspond to each twist direction, further, the stationary storage container In addition, the reverse phase winding is accommodated for each set. For this reason, when accommodating a twisted wire bundle in a storage container, even if it does not rotate a storage container, it can suppress that the twisted wire bundle is twisted and the part turns into a ring | wheel, and what is called return is produced. . Accordingly, it is possible to provide a method of manufacturing a collective conducting wire that can more easily take up a twisted wire bundle without causing the winding tool to rotate and further suppress the occurrence of return. Moreover, since it becomes unnecessary to rotate a winding tool, a winding tool can be enlarged and the accommodation amount of a strand bundle can be increased.

  Moreover, according to the manufacturing method concerning Embodiment 1, a finishing rolling process is continuous by connecting the twisted wire bundles wound and stored in the plurality of storage containers, respectively, and winding and storing them in the winding storage process. Even if it is operating continuously, the stranded wire bundle can be continuously supplied to the finishing rolling process.

  Further, according to the manufacturing method according to the first embodiment, at least three rotary chucks are installed between the fixed chucks, and are stopped in order from the outer rotary chuck to form the torsion part. Therefore, a part of the wire bundle can be sequentially twisted from the outside, and a right twist portion and a left twist portion can be formed stepwise. Therefore, even if it is a long conducting wire bundle, the shape as a bundle can be maintained and twisted stably without breaking.

(Comparative example)
By the way, the inventors of the present application have conceived the manufacturing method shown in FIG. FIG. 16 is a schematic diagram of the related manufacturing method 2. 16 differs from the manufacturing method shown in FIG. 15 in that a multi-stage roll 920 is used instead of the take-up spools 819 and 821, and other configurations are common. Therefore, description of a common structure is abbreviate | omitted and a different point is demonstrated. In the manufacturing method shown in FIG. 16, an intermittent process and a continuous process are continuously performed using a manufacturing apparatus 910, and the assembly conductor 808 is manufactured from the wires 801.

  First, similarly to the manufacturing method shown in FIG. 15, a twisted wire bundle 804 is intermittently formed from a plurality of strands 801 in an intermittent process. The formed stranded wire bundle 804 is sent to the second rolling roll 823 via the multi-stage roll 920. In the case of the manufacturing method shown in FIG. 16, the feeding speed of the twisted wire bundle 804 is adjusted by the multi-stage roll 920, so that the collective conducting wire 808 is continuously formed from the twisted wire bundle 804 in the continuous process.

  In the manufacturing method shown in FIG. 16, a multistage roll 920 is installed between the intermittent process and the continuous process. The multi-stage roll 920 can absorb the difference in production speed between the intermittent process and the continuous process to some extent by changing the distance between one movable roll and another fixed roll. However, even when the multi-stage roll 920 is used, the production speed difference between the intermittent process and the continuous process may not be absorbed. In addition, when a problem occurs in any of the intermittent process and the continuous process, both the intermittent process and the continuous process are stopped.

  On the other hand, the manufacturing method (refer FIG. 2) concerning Embodiment 1 can absorb the production rate difference of an intermittent process and a continuous process more reliably compared with the manufacturing method shown in FIG. In addition, in the manufacturing method according to the first embodiment, even if a problem occurs in any of the intermittent process and the continuous process, only the process in which the problem occurs is stopped, and no problem occurs. The process can be left in operation.

  Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. For example, in the manufacturing method according to the first embodiment, at least three rotary chucks 16 are used, but one rotary chuck 16 may be used.

DESCRIPTION OF SYMBOLS 1 Strand 2 Conductor 3 Conductor bundle 3a-3f Twisted part 4 Stranded bundle
4a, 4aa, 4ab, 4ac, 4a1 Right twisted part 4b, 4bd, 4be, 4bf, 4b1, 4b2 Left twisted part 4c, 4c1, 4c2, 4c3 Parallel part 5, 51 Reverse phase winding part 7 Processed wire bundle 8 Assembly conductor 11 Element Wire feeder 12 Rolling roll 13 Multi-stage roll 14 Conveying device 15 Fixed chuck 15c Center shaft 16, 16a to 16e Rotating chuck 17 Fixed chuck 19, 21a, 21b Container 23, 24 Rolling roll 25-27 Non-rotating clamp 28 Forward clamp 29 Reverse clamp
S1 Strand rolling process S2 Unfolding process S3 Bundling process S4 Twisted wire bundle forming process S5 Reverse phase winding forming process S51 Holding process S52 Feeding process S53 Inversion process S54 Overlapping process S6 Winding storage process S7 Finish rolling process

Claims (6)

Using a twisted wire bundle having a shape in which a right twisted portion twisted in a clockwise direction and a left twisted portion twisted in a counterclockwise direction are alternately repeated in the longitudinal direction when viewed from the upstream side toward the downstream side A method of manufacturing a collective conducting wire formed by:
The right twisted portion is reversed to wind the right twisted portion, the left twisted portion adjacent to the right twisted portion is reversed in a direction opposite to the reverse direction of the right twisted portion, and the left twisted portion is wound. A reverse phase winding process for forming a reverse phase winding of the set;
A winding and storing step of winding and storing the reverse phase winding in a set in a stationary container;
The manufacturing method of the assembly conducting wire containing. In the reverse phase winding step,
Grasping the boundary between the right twist portion and the left twist portion adjacent to each other, one end on the right twist portion side, and one end on the left twist portion side with three non-rotating clamps,
A part of the right twist portion is gripped by a normal rotation clamp, and the normal rotation clamp is separated from the axis of the twisted wire bundle, and then intersects the axis of the twisted wire bundle or crosses the axis of the twisted wire bundle. Winding the right twisted part by reversing around a virtual axis of 1;
After gripping a part of the left twisted portion adjacent to the right twisted portion with a reverse clamp and separating the reverse clamp from the axis of the twisted wire bundle, the shaft intersects with the axis of the twisted wire bundle, or the twisted wire bundle. 2. The method of manufacturing a collective conducting wire according to claim 1, wherein the left twisted portion is wound around a second virtual axis crossing the axis by reversing in a direction opposite to a reversing direction of the forward clamp.   When the reverse phase winding is viewed in plan from the lamination direction side of the twisted wire bundle, the right twisted portion is wound counterclockwise around the winding axis of the twisted wire bundle, and the left twisted portion is the twisted wire bundle. The method of manufacturing a collective conducting wire according to claim 1, wherein the winding is wound clockwise around a winding axis of the wire. The storage container includes a cylindrical storage space;
The relationship between the circumferential length L of the right twisted part and the left twisted part and the diameter D of the cylindrical accommodation space is as follows:
0.5πD ≦ L ≦ πD
The method of manufacturing a collective conducting wire according to any one of claims 1 to 3, wherein: In the winding and storing step, the twisted wire bundle is wound and stored in a plurality of the storage containers,
After the winding and storing process,
5. The method according to claim 1, further comprising a finish rolling step of forming a collective conducting wire by finish rolling the twisted wire bundle after connecting the twisted wire bundles included in the plurality of storage containers. The manufacturing method of the assembly conducting wire as described in one. Before the reverse phase winding step,
A plurality of strands are gripped by two fixed chucks, and are gripped by at least three rotary chucks disposed between the two fixed chucks,
By rotating all of the rotating chuck, the plurality of strands are twisted,
The twisted wire bundle forming step of forming the twisted wire bundle by stopping the rotation of the rotating chuck in order from both ends outside the plurality of rotating chucks is included. Manufacturing method of the assembly lead wire.

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