WO2021153807A1

WO2021153807A1 - Rectangular copper wire peeling device and coil segment manufacturing system

Info

Publication number: WO2021153807A1
Application number: PCT/KR2020/001289
Authority: WO
Inventors: 김명진; 손지호
Original assignee: 주식회사 휴비스
Priority date: 2020-01-28
Filing date: 2020-01-28
Publication date: 2021-08-05

Abstract

The present invention relates to a rectangular copper wire peeling device and a coil segment manufacturing system, which peel a rectangular copper wire by means of one laser unit before a coil segment is formed and effectively discharge dust generated during a peeling process, and comprises: a housing (100) formed to be penetrated so as to permit the free rotation of the rectangular copper wire; a dust collection module (200) accommodated in an inner space of the housing (100) and having a slit (241) allowing a laser to pass therethrough, slit-side nozzles (230) for jetting gas toward the rectangular copper wire from both sides of the slit (241), an advancing-side nozzle (220) for jetting the gas toward a portion, on the verge of advancing, of the rectangular copper wire, and a dust collection module exhaust port (250) disposed in the direction facing the slit (241); a laser unit (300) for emitting the laser through the slit (241); an air-feeding controller (400) for supplying gas; and a peeling controller (500), which controls the laser unit (300) and the air-feeding controller (400) according to the rotation of the rectangular copper wire so as to peel the rectangular copper wire and discharge dust.

Description

Square copper wire stripping device and coil segment manufacturing system

The present invention relates to a copper wire stripping device and a coil segment manufacturing system that strips each copper wire with one laser unit prior to forming a coil segment, and effectively discharges dust generated in the stripping process.

Recently, the policy of supplying eco-friendly vehicles such as electric vehicles, hybrid vehicles, and hydrogen fuel cell vehicles has been strengthened. In these vehicles, a motor is used as a driving power source. In order to improve the output of the motor, a plurality of coil segments 20 illustrated in FIG. 1 are installed, and a coil of the motor is formed by welding between the ends 21 of the coil segments 20 according to a coil winding method.

1 is a perspective view (b) of a copper wire 10 having an insulating coating 12 coated on a copper wire 11 having a substantially quadrangular cross section, a perspective view of a copper wire 10 ′ in which the insulation coating 12 is partially stripped. (b), a perspective view (c) and It is a block diagram (d) of a coil segment manufacturing system for manufacturing the coil segment 20 with each copper wire 10 .

When described with reference to FIG. 1, the coil segment manufacturing system strips the insulation coating 12 at the length interval of the copper wire supply device 1 for supplying the copper wire 10 wound on the bobbin, and the coil segment 20 to be manufactured. A coil for manufacturing a coil segment 20 by bending the stripping device 2 and stripping the stripped copper wire 10' into an approximately 'U' shape and cutting the middle of the part stripped of the insulation coating 12 A segment forming device (3) is included. Of course, as described in Japanese Patent No. 6342518, a buffer or a plurality of rollers for maintaining each copper wire in a loose state may include correction means for straightening each copper wire in the longitudinal direction.

Due to the shape of the coil segment 20 manufactured in this way, it is also called a hairpin, and both ends ( 21), after being inserted into the stator core slot of the motor, a welding process for forming a coil can be performed.

Here, the copper wire stripping device (2) has to strip the circumferential four-direction surface evenly, so it is conventionally configured with a cutter for stripping each four-direction surface, and each copper wire supplied to the coil segment forming device (3) ( 10), in synchronization with the supply speed, the predetermined section was evacuated at the appropriate timing. However, when a cutter is used as a mechanical stripping method, maintenance is cumbersome, and even the copper wire 11 may be excessively stripped.

As another prior art of each copper wire stripping device 2, there is also a technique for simultaneously stripping the four-direction surface with a plurality of laser units arranged along the circumferential direction. On the other hand, as a technique used for stripping of a cylindrical copper wire, a technique for stripping by reflecting a laser beam irradiated toward a surface in one direction to break off to a surface in another direction, or by rotating a laser unit along the circumferential direction, can also be borrowed. will be able

However, whether a plurality of laser units or a single laser unit is used, the configuration becomes very complicated. Moreover, the peeled insulating coating 12 is generated and scattered in the form of dust, and the configuration of the dust collecting module for discharging such dust is also complicated, and it is also difficult to collect the entire amount of dust. That is, it is preferable to arrange the supply port and the exhaust port to face each other with each copper wire 10 interposed therebetween. Moreover, it becomes difficult to block the dust scattering toward the head of the laser unit, so if the dust remains in the angular copper wire 10, it may cause welding failure or electrical connection failure, and when introduced into the laser unit It may deteriorate the peeling quality.

In addition, in general, the coil segment forming apparatus 3 twists and rotates the partially stripped copper wire 10 ' with the longitudinal axis as a rotation axis, bends the copper wire 10 ', and at least the copper wire 10 '. Since it has a timing to rotate by 360°, it was necessary to ensure sufficient spacing between the angular copper wire stripping device 2 and the coil segment forming device 3 to be interlocked for twist rotation.

[Prior art literature]

[Patent Literature]

(Patent Document 1) JP 6342518 B2 2018.05.25.

(Patent Document 2) JP 2019-103360 A 2019.06.24.

(Patent Document 3) US 6603094 B2 2003.08.05.

Therefore, the present invention breaks off each copper wire with one laser unit according to the torsional rotation time of each copper wire by the coil segment forming device, and by the blowing direction to minimize the dust remaining in each copper wire and the dust flowing into the laser unit An object of the present invention is to provide a stripping device for each copper wire and a coil segment manufacturing system that can effectively discharge dust through an exhaust port.

In order to achieve the above object, in the present invention, in the stripping device for each copper wire, the guide part 110 having the through hole 111 having the cross-sectional shape of the copper wire is mounted on both sides opposite to each other so as to freely rotate in the penetrating direction as an axis. , The housing 100 that passes through the guide 110 and allows the twisted rotation of each copper wire passing through the inner space; A slit 241 that is disposed between the guide parts 110 in the inner space of the housing 100 and transmits a laser to be irradiated toward each copper line passing through, and both sides of the slit 241 toward each copper line A dust collecting module equipped with a slit-side nozzle 230 for blowing gas, a forward-side nozzle 220 for blowing gas toward a site immediately before the advance of each copper wire, and a dust collecting module exhaust port 250 arranged in a direction opposite to the slit 241 module 200; a laser unit 300 for projecting a laser through the slit 241; an air supply controller 400 for supplying gas to the slit side nozzle 230 and the outgoing side nozzle 220; and a stripping controller 500 that controls the laser unit 300 and the air supply controller 400 according to the rotation of each copper wire, stripping each copper wire, and discharging dust.

In order to achieve the above object, the present invention provides a angular copper wire supply device for supplying a angular copper wire, the angular copper wire stripping device for partially stripping each copper wire supplied from each copper wire supply device at a coil segment length interval, and a coil with stripped copper wire In the coil segment manufacturing system comprising a coil segment forming device that generates a segment and has a time to rotate at least 360° twist, the angular copper wire stripper is the angular copper wire to break off each copper wire according to the 360° twist rotation time Interlock the peeling device and the coil segment forming device.

Since the present invention configured as described above breaks off with one laser unit according to the torsional rotation time of each copper wire, it is structurally simplified and can be effectively discharged so as not to leave dust.

1 is a perspective view (a) of a copper wire 10, a perspective view (b) of a copper wire 10' that is partially stripped, a perspective view of a coil segment 20 generated by bending and cutting the copper wire 10' ( c) and schematic (d) of the coil segment manufacturing system.

Figure 2 is a perspective view of a gakgong line stripping device in accordance with an embodiment of the present invention as viewed from the gakgong line entry side.

Figure 3 is a perspective view of the gakgong line stripping device in accordance with an embodiment of the present invention viewed from the gakgong line advance side.

Figure 4 is a side view of the gakdong line stripping device in accordance with an embodiment of the present invention as viewed from the gakdong line entry side.

Figure 5 is a front view showing an inside view of the opening of the door of the stripping device for each copper wire according to an embodiment of the present invention.

6 is a cross-sectional view of a stripping device for each copper wire according to an embodiment of the present invention.

7 is a perspective view (a) and an exploded perspective view (b) of the rotation support unit 120 in which the guide 110 is installed.

8 is a perspective view (a) and an exploded perspective view (b) of the dust collection module 200

9 is a bottom side perspective view (a), a top side perspective perspective view (a), and a side perspective side view (b) of the slit side nozzle 230 .

10 is a partially exploded perspective view (a) and a cross-sectional view (b) of the exit-side nozzle 220;

Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings so that a person skilled in the art can easily implement it.

In describing an embodiment of the present invention, a coil segment forming apparatus for producing a coil segment by bending and cutting each copper wire stripped by the present invention and a angular copper wire supply device for supplying a square copper wire toward the present invention is a known configuration Therefore, it is briefly mentioned enough to understand the embodiments of the present invention and detailed descriptions are omitted.

Referring to the perspective view shown in FIGS. 2 and 3 and the side view shown in FIG. 4 , the copper wire stripping device according to an embodiment of the present invention includes the copper wire 10 supplied from the copper wire supply device 1 and the housing ( After passing through the opposite side surfaces of the housing 100 and passing through the inner space of the housing 100, it is fed to the coil segment forming apparatus 3, and on the upper surface of the housing 100, the laser unit fixing part 130 is used. The laser unit 300 is fixed in position, and the air supply controller 400 is installed on the outer surface of the lower wall of the front wall of the housing 100 .

In addition, referring to the internal view shown in FIG. 5 and the cross-sectional view shown in FIG. 6 , the

internal spaces

101 and 102 of the housing 100 are partitioned up and down by a hopper-shaped housing exhaust port 150 . At this time, the dust collection module 200 and the air nozzle 140 are accommodated in the upper inner space 101, and a door is installed so that it can be opened. 400 was installed, and a door was installed in the air supply controller 400 to be opened.

The lower structure of the dust collecting module 200 is composed of a hopper-shaped dust collecting module exhaust port 250 that is connected to an exhaust pipe 151 installed through one side of the housing exhaust port 150, so that air is supplied from the air supply controller 400 One gas is discharged through the exhaust pipe 151 connected to the exhaust port 250 of the dust collection module. The air nozzle 140 blows the gas supplied from the air supply controller 400 into the upper internal space 101, so that the dust in the upper internal space is discharged to the outside through the exhaust pipe 151 connected to the housing exhaust port 150. do. The lower internal space 102 of the housing 100 was used as a space for piping the

exhaust pipes

151 and 251 to the outside.

In addition, the stripping apparatus for each copper wire according to an embodiment of the present invention controls the laser unit 300 and the air supply controller 400 according to the rotation of each copper wire to peel off each copper wire and discharge dust. includes

In an embodiment of the present invention, since each copper wire is torsionally rotated by the coil segment forming apparatus 3, the stripping controller 500 is interlocked with the coil segment forming apparatus 3 to match the timing of the torsional rotation of each copper wire By controlling the laser unit 300 and the air supply controller 400, each copper wire is stripped along the circumferential direction.

As shown in FIG. 5, the air supply controller 400 includes, for example, an air regulator 410 that adjusts the pressure of the gas supplied through the air supply pipe 411 connected with the compressor to a predetermined value; A plurality of air supply hoses 420 for distributing the pressure-controlled gas to the dust collection module 200 and the air nozzle 140, and a valve installed in the middle of each air supply hose 420 to control gas supply (430). Here, the air supply hose 420 is connected to the air nozzle 140, and after branching into two, it is connected to a plurality of

flow control valves

223a and 232a provided in the dust collection module 200 as described later. is composed of

Holes are respectively formed on opposite sides of the housing 100, and the rotation support part 120 on which the guide part 110 is freely rotatably mounted is fitted and fixed in the hole, so that the angular copper wires 10 and 10' ) passes through the guide part 110, and also allows torsional rotation by the coil segment forming device.

Referring to FIG. 7 , the guide unit 110 includes a through-hole 111 having a cross-sectional shape of the angular copper wire 10 to perform torsional rotation of the

angular copper wire

10 and 10 ′ penetrating through the through hole 111 . Although not allowed, it is installed to pass through the rotation support 120 so as to rotate the penetrating direction of each copper wire 10, 10' as an axis, so that the longitudinal axis of the copper wire 10, 10' is a stable torsion of each copper wire 10, 10' Allow rotation.

For this purpose, the rotation support 120 is a bolt 121b in the screw groove 121a formed from the outer surface toward the inner passage 121c after inserting the guide portion 110 into the inner passage 121c having the front and rear openings. The rotating body 121 that presses the outer surface of the guide unit 110 with a bolt 121b to prevent the guide unit 110 from being separated by fastening the rotating body 121, and the rotating body ( The rim side of the front and rear openings of the rotating support body 123, which accommodates the 121) and made the rotating body 121 rotatable in the inner 123a by the bearing 122 installed in the front and rear openings, and the rotating retarder 123 It prevents separation of the rotating body 121 and the bearing 122 by blocking and includes

fixing plates

124 and 125 through which at least the front and rear portions of the guide part 110 are exposed to the outside.

In addition, the rotation support 123 has a hole 123b for exposing the outer surface of the portion where the screw groove 121a is formed in the rotation body 121 to the outside, so that the bolt 121b is inserted into the hole 123b. ) to allow the screw to be loosened. Accordingly, after the bolt 121b is unscrewed, the guide part 110 may be removed from the rotating body 121 and then replaced. That is, after preparing a plurality of guide parts 110 having through-holes 111 having different cross-sectional shapes or sizes, the guide part having through-holes 111 formed in the cross-sectional shape of each copper wire 10 to be stripped. (110) can be replaced and installed.

The rotation support unit 120 configured as described above is installed through the side of the entry side through which the copper wire 10 is supplied by the copper wire supply device 1 and passes to enter the upper internal space 101, and, in addition, the upper The angular copper wire 10 ′ stripped by the dust collecting module 200 accommodated in the inner space 101 is also installed through the exit side through which it passes in order to be fed to the coil segment forming apparatus, and the fixed plate of the rotating support 123 . (125) is installed in such a way as to be fixed to the housing 100, and as shown in FIGS. 2 and 3, the hole 123b of the rotary support 123 is exposed to the outside, so that the lower housing 100 In the fixed state, the guide part 110 could be replaced.

As shown in FIGS. 2 to 6 , the laser unit fixing unit 130 includes a mounting plate 131 for placing and fixing the header 310 of the laser unit 300 downward, and a mounting plate 131 . Then, the main support plate 133 and the auxiliary support plate 134 fixed to the side of the housing 100 so that the seating plate 131 is disposed at a predetermined height on the upper plate of the housing 100, and the laser unit 300 in the upper opening ) into which the header 310 is put, and the lower opening includes a protective tube 132 that passes through the upper plate of the housing 100 and communicates with the upper inner space 101 of the housing 100 .

Here, the laser unit 300 irradiates a laser to each copper wire 10 passing through the upper inner space 101 of the housing 100 , and irradiates a predetermined length along the longitudinal direction of each copper wire 10 . It has an optical system capable of adjusting the angle, and may be configured to irradiate, for example, a fiber laser.

According to an embodiment of the present invention, it has a structure capable of adjusting the distance between the header 310 and each copper wire 10 of the laser unit 300, and for this purpose, a seating plate 131 on which the laser unit 300 is placed. ) and the housing 100 is configured to adjust the distance between the upper plate of the main support plate 132 and the auxiliary support plate 134 .

The auxiliary support plate 134 has an upper end connected to one end of the seating plate 131 , and a hole 134a through which the bolt is to pass is formed to be elongated vertically at a higher portion than the lower end. Then, a screw hole is formed in one side of the housing 100 to be fixed of the auxiliary support plate 134, a bolt 134 is inserted into the hole 134a, and then the auxiliary support plate 134 is screwed into the screw hole. It was pressed toward the housing 100 .

The main support plate 133 has an upper end connected to the other end of the seating plate 131, and as shown in FIGS. 2 and 4, a hole 133a through which the bolt 133b will pass is formed in the bolt 133b. It is formed vertically to have a length sufficiently longer than the diameter, and in the embodiment of the present invention, it is formed in plurality. In addition, the main support plate 133 is provided with a bolt holding part 133c and a fine adjustment bolt 135 . The bolt holding part 133c rotatably grips the fine adjustment bolt 135 in a state in which the male thread 135c hangs down. Here, the bolt holding part 133c makes it grip the lower part of the bolt head 135a among the fine adjustment bolts 135, and the fine adjustment bolt 135 is caught on the bottom surface of the bolt holding part 133c (135b) is provided, so that the portion recessed along the circumferential direction in the fine adjustment bolt 135 is rotatably gripped by the bolt gripping part 133c. Accordingly, the rotation of the fine adjustment bolt 135 is possible, but does not move up and down.

On the other side of the housing 100 to which the main support plate 133 is fixed, a screw groove 104 for screwing a bolt 133b through a hole 133a, and a male thread 135c for a fine adjustment bolt 135. A nut block 103 to be screwed on is provided. Accordingly, by rotating the fine adjustment bolt 135 to precisely adjust the height, and then screwing the bolt 133b into the screw groove 104 , the main support plate 133 may not move. Here, it is preferable to form a plurality of screw grooves 104 for one hole 133a as shown in the figure.

The protective tube 132 has an upper end fixed to the seating plate 131, and the lower end is inserted into a hole formed in the upper plate of the housing 100 with a margin, and moves up and down according to the height adjustment of the seating plate 131. Even so, the lower end maintains the state penetrating the upper plate of the housing 100 to protrude into the inner space of the housing 100 .

The air nozzle 140 passes through the upper plate of the housing 100 and blows gas toward the lower end of the protective tube 132 exposed to the upper inner space 101, and is a perspective view separately shown on the cross-sectional view of FIG. Referring to, along the composition direction of the air supply space 141 formed long in the width direction, the air supply port 142 for blowing the gas supplied from the air supply controller 400 into the air supply space 141, and the air supply space 141 Formed in a line and provided with a plurality of exhaust holes 143 communicating with the air supply space (141).

Here, the arrangement distance of the plurality of exhaust holes 143 is longer than the diameter of the lower end of the protective pipe 132, and the exhaust hole 143 is adjusted to the minimum height of the seating plate 131 to which the protective pipe 132 is fixed. The lower end of the protective tube 132 is directed downward. That is, since the air is horizontally blown to a height lower than the lower end of the protective pipe 132, the dust in the upper internal space 101 is blocked from flowing into the laser unit 300 through the protective pipe 132, and the upper internal space ( 101) to be discharged to the housing exhaust port 150 constituting the lower structure. Accordingly, even if dust leaks from the dust collection module 200 and flows into the upper inner space 101 , it is discharged through the housing exhaust port 150 .

The dust collection module 200 is freely rotatably installed on the side of the entry side of each copper wire 10 and the exit side of the angular copper wire 10' in the upper inner space 101 of the housing 100, respectively. It is arranged between the guide parts 110, is installed on the dust collection module bracket 160 fixed to the inner wall of the housing 100, and is configured so that each copper wire 10 passing through the guide parts 110 on both sides passes through. As a result, it peels from the inside that penetrates and collects and paints the dust generated during the peeling process.

It will be described in detail with reference to FIGS. 8 to 10 as follows.

First, referring to FIG. 8 , the dust collection module 200 includes an entry part 210 to pass through the stripped copper wire 10 , the exit nozzle 220 to penetrate the stripped copper wire 10 ', the

width Cases

201, 202, in which the entry part 210 and the exit nozzle 220 are fixed to the

walls

201 and 202 facing in the direction to form front and rear walls and fixed to the dust collection module bracket 160 203, 304), a hopper-shaped dust collection module exhaust port 250 that blocks the lower part of the case, and two slits installed on the upper side of the mutually facing surfaces of the

walls

201 and 202, but spaced between the two slits The fixed position on the slit side nozzle 230 can be changed so that the width of the slit 241 formed by fixing the side nozzle 230 and the two slit side nozzles 230 to the upper surface of the nozzle 230 can be adjusted with an interval therebetween. One slit control plate 240 is included.

That is, the dust collecting module 200 includes the

walls

201 and 202 facing in the width direction, the entry part 210 and the exit nozzle 220 facing in the direction in which each copper wire advances, and the dust collection module exhaust port 250 that blocks the lower part. ), and by creating an inner space surrounded by a slit control plate 240 with a slit on the upper part, each copper wire 10, 10 'is the inner space through the entry part 210 and the exit side nozzle 220. let it pass Then, the laser irradiated from the laser unit 300 enters the upper inner space 101 of the housing 100 through the protective tube 132 and then passes through the slit 241 to the inner space of the dust collecting module 200 . It is accommodated in the upper inner space 101 of the housing 100 to enter into the. Accordingly, the copper wire 10 passing through the inner space of the dust collecting module 200 is stripped to advance to the copper wire 10 ′ from which the insulating coating 12 is removed by a predetermined length.

The slit-side nozzle 220 and the slit control plate 240, each provided in pairs, are formed to be elongated in a direction parallel to the moving direction of the angular copper wire 10, and a gap between the two slit-side nozzles 220 is provided. is at least equal to or greater than the maximum adjustment width of the slit 241 . According to an embodiment of the present invention, the two slit control plates 240 are provided with holes 242 elongated in directions opposite to each other facing each other, and holes are formed on the upper surfaces of the two slit-side nozzles 230 . The width of the slit 241 can be adjusted according to the position where the bolt 243 is penetrated in the hole 242 by forming a female thread groove 231 in which the bolt 243 through the hole 242 is screwed. .

The slit-side nozzle 230 is disposed on both sides of the slit 241 in the inner space of the dust collecting module 200 , respectively, and is configured to blow gas toward each copper wire 10 .

Referring to FIG. 9 , the slit-side nozzle 230 is an air supply space 231 and an air supply space 231 formed to be long parallel to the traveling direction of the angular copper wire 10 passing through the inner space of the dust collecting module 200 . The gas supplied through the exhaust hole 233 and the air supply controller 400 formed in parallel with the air supply space 231 by creating a long line along the composition direction of the air supply space 231 is supplied toward each copper line 10 . By providing the air supply port 232 for injection into the space 231, it is possible to blow gas of equal wind pressure to the entire section that is peeled off by the laser in each copper wire 10.

On the other hand, since the exhaust hole 233 exhausts the gas in a downward inclined direction to face the copper wire 10 , the portion 234 where the exhaust hole 233 is formed is a plane facing the copper wire 10 . That is, the normal line passing through the exhaust hole 233 is formed to have a plane orthogonal to the copper wire 10, so that the wind pressure of the gas toward the copper wire is uniform, and the amount of dust leaking through the slit 241 Minimize In addition, since the dust collecting module exhaust port 250 is provided in the direction opposite to the slit 241 around the angular copper wire 10 irradiated with the laser, the dust is smoothly discharged through the dust collecting module exhaust port 250 . In addition, the flow rate control valve 232a is connected to the air supply port 232 to manually control the flow rate of the gas injected through the air supply port 232 .

The exit-side nozzle 220 passes the partially stripped copper wire 10 ′ and blows out the gas remaining in the copper wire 10 ′ by blowing gas toward the portion just before the passage of the copper wire 10 ′. Accordingly, the dust is prevented from leaking from the dust collecting module 200 to the outside.

According to the embodiment shown in FIG. 10, the advance-side nozzle 220 includes a through hole 221 through which the stripped copper wire 10 ′ passes, an air supply space 222 surrounding the through hole 221, and the The air supply port 223 for injecting the gas supplied from the air supply controller 400 into the air supply space 222, and the exhaust hole 224 for blowing the gas of the air supply space 222 toward the site just before the passage of each copper wire. be prepared

According to a specific embodiment, in order to create an air supply space 222 that surrounds the through-holes 221: 221a, 221b and is isolated from the through-hole 221, the through-hole 221a is penetrated through the body 225. The air supply space 222 in the shape of a circular groove surrounding the hole 221 is formed, and the air supply space 222 is provided with a cover 226 having a through hole 221b to communicate with the through hole 221a of the body 225 . covered and sealed.

In addition, a plurality of air supply ports 223 were formed along the circumferential direction of the air supply space 222 to equalize the pressure in the air supply space 222 , and the exhaust hole 224 is also formed along the circumferential direction of the air supply space 222 . By forming a plurality of pieces, the circumferential surface of each copper wire 10' was blown with equal wind pressure. To this end, the air supply space 222 is the inner peripheral space 222a close to the through hole 221 and the outer peripheral space 222b communicating with the inner peripheral space, as indicated by reference numerals in FIG. 10(b). However, by making the radial width and length of the inner circumferential space 222a relatively smaller than the outer circumferential space 222b, the inner circumferential space 222a to be exhausted is supplied to the outer circumferential space 222b. ) was relatively small. In addition, a plurality of air supply ports 223 formed from the outer circumferential surface of the body 225 toward the outer circumferential space 222a are provided along the circumferential direction, and connected to the inner circumferential space 222a, each copper wire 10') Exhaust holes 224 formed toward the portion just before the passage of the were formed, but provided in plurality along the circumferential direction centered on the through-holes 221 .

Here, the body 225 includes an expansion hole 227 formed in a tapered shape at a portion immediately before passing through the through hole 221 . Accordingly, the through hole 221 was connected to the expansion hole 227 , and the exhaust hole 224 was formed parallel to the traveling direction of each copper wire to reach the tapered surface of the expansion hole 227 . Accordingly, since the gas is ejected from the outlet of the exhaust hole 224 formed on the tapered surface of the expansion hole 227, the section in which the gas is blown in each copper wire is lengthened, and the dust separated from the each copper wire is collected by the dust collection module 200 ) to be swept out into the internal space of the dust collection module exhaust port 250 .

Meanwhile, the flow rate control valve 223a is connected to the air supply port 223 to manually control the flow rate of the gas injected through the air supply port 223 .

The gas blown toward the copper wire 10 by the shape feature of the copper wire 10 having a square cross-section may be turned by the copper wire 10 and directed toward the slit 241, but the dust collection module 200 ) by arranging the slit-side nozzle 230 on both sides of the slit 241 to minimize the amount of dust leaking through the slit 241, and also disposing the exit-side nozzle 220 to remove dust. This advances to minimize the leakage of dust, and the relative arrangement position between the slit-side nozzle 230 , the advance-side nozzle 220 , and the dust collecting module exhaust port 250 allows the dust to be effectively discharged.

The peeling operation and the dust discharging operation are performed by the peeling controller 500 .

The coil segment forming apparatus 3 for forming the coil segment 3 into the angular copper wire 10 ′ stripped through the present invention has time to rotate the angular copper wire 10 ′ to at least 360° twist.

The stripping controller 500 interlocks with the coil segment forming device 3 while the copper wire 10' is fed to the coil segment shaping device 3, and the timing to rotate the copper wire 10' by 360 ° to operate the laser unit 300 . Accordingly, a predetermined section of each copper line 10 ′ can be escaped along the circumferential direction. In addition, the peeling controller 500 operates the air supply controller 400 to discharge the dust generated by the laser peeling to the outside. Of course, the air supply controller 400 may be continuously operated during the non-breaking time, that is, the supply of each copper wire.

On the other hand, the present invention may be a coil segment manufacturing system including a stripping device for each copper wire configured as described above.

That is, the coil segment manufacturing system according to the present invention is configured as described above to break off each copper wire supplied from each copper wire supply device 1, each copper wire supply device 1 for supplying a copper wire for each predetermined section. and a coil segment forming device (3) which generates a coil segment from the device and the stripped copper wire and has a time to rotate the copper wire at least 360°.

Here, the copper wire supply device 1 may be, for example, a device that continuously feeds the copper wire 10 wound around the bobbin toward the coil segment forming device 3 without untying it and cutting it, since it is a known configuration. A detailed description will be omitted.

In order to peel off the insulation coating 12 partially by a predetermined length at the length interval of the coil segment 20 to be manufactured, the copper wire stripping device is the square copper wire supply device 1 and the coil segment forming device 3 It is disposed between, and the angular copper wire is operated according to the 360° twist rotation time by the coil segment forming device 3 , and the insulation coating 12 is peeled off at the length interval of the coil segment 20 to be manufactured. Accordingly, each copper wire supplied to the coil segment forming apparatus 3 has a predetermined section stripped along the circumferential direction at a length interval of the coil segment 20 to be manufactured.

The coil segment forming apparatus 3 bends the stripped copper wire 10' into an approximately 'U' shape and cuts the middle of the stripped portion of the insulating coating 12 to manufacture the coil segment 20 . Since the coil segment forming apparatus 3 has a known configuration, a detailed description thereof will be omitted.

On the other hand, there is a process controller (not shown) for controlling the supply speed of each copper wire and to manufacture the coil segment, the copper wire supply device 1 and the coil segment forming device 3 . Accordingly, the function of the stripping controller 500 may be implemented in the process controller, and the process controller may control the stripping device for each copper wire.

In the above, specific embodiments have been shown and described to illustrate the technical idea of the present invention, but the present invention is not limited to the same configuration and operation as the specific embodiments as described above, and various modifications are within the limits that do not depart from the scope of the present invention. can be carried out in Accordingly, such modifications should be considered to fall within the scope of the present invention, and the scope of the present invention should be determined by the following claims.

[Explanation of code]

1: Square copper wire supply device

2: Stripping device for each copper wire

3: Coil segment forming device

10,10': copper wire 11: copper wire 12: insulation coating

20: coil segment 21: end

100: housing

110: guide part 111: through hole

120: rotation support 121: rotating body 122: bearing

123: rotary support 124, 125: bearing fixing plate

130: laser unit fixing part 131: seating plate 132: protective tube

133: main support plate 134: auxiliary support plate 135: bolt

140: air nozzle 141: air space 142: air supply port

143: exhaust hole

150: housing exhaust port 151: exhaust pipe

160: dust collection module bracket

200: dust collection module

210: entry 211: through hole

220: exit side nozzle 221: through hole 222: air supply space

223: air supply port 224: exhaust hole

230: slit side nozzle 231: air supply space 232: air supply port

233: exhaust hole

240: slit control plate 241: slit

250: dust collection module exhaust port 251: exhaust pipe

300: laser unit

400: supply air controller

410: air regulator 411: air supply pipe 420: air supply hose

430: valve

500: stripping controller

Claims

The guide part 110 having a through hole 111 having a cross-sectional shape of each copper wire is mounted on both sides opposite to each other so as to freely rotate in the penetrating direction as an axis, and the guide part 110 passes through the guide 110 and passes through the inner space. a housing 100 that allows torsional rotation;

A slit 241 that is disposed between the guide parts 110 in the inner space of the housing 100 and transmits a laser to be irradiated toward each copper line passing through, and both sides of the slit 241 toward each copper line A dust collecting module equipped with a slit-side nozzle 230 for blowing gas, a forward-side nozzle 220 for blowing gas toward a site immediately before advancing of each copper wire, and a dust collecting module exhaust port 250 arranged in a direction opposite to the slit 241 module 200;

a laser unit 300 for projecting a laser through the slit 241;

an air supply controller 400 for supplying gas to the slit-side nozzle 230 and the outgoing-side nozzle 220; and

A peeling controller 500 for controlling the laser unit 300 and the air supply controller 400 according to the rotation of each copper wire, peeling off each copper wire and discharging dust;

containing

Angular wire stripping device.
The method of claim 1,

The exit-side nozzle 220 is

A through hole 221 through which each copper wire passes, an air supply space 222 that surrounds the through hole 221, an air supply port 223 for supplying gas to the air supply space 222, and a portion just before the passage of each copper wire provided with an exhaust hole 224 that allows the gas of the supply air space 222 to be blown out

Angular wire stripping device.
3. The method of claim 2,

The advancing side nozzle 220 is

An expansion hole 227 that is formed in a tapered shape toward the portion just before the passage of each copper wire is provided to be connected to the through hole 221, and the exhaust hole 224 is formed to reach the tapered surface of the expansion hole 227. , to eject gas from the tapered surface of the expansion hole 227

Angular wire stripping device.
The method of claim 1,

The slit side nozzle 230 is

An exhaust hole 233 and supply air formed in a long direction parallel to the supply air space 231 in the supply air space 231 and the air supply space 231 formed to be long parallel to the moving direction of the copper wire 10. provided with an air supply port 232 for supplying gas to the space 231

Angular wire stripping device.
The method of claim 1,

The guide part 110 is

Replaceable with a different size of the through hole 111

Angular wire stripping device.
The method of claim 1,

The laser unit 300 is

It is irradiated through the protective tube 132 penetrating the upper plate of the housing 100 to be irradiated toward the slit 241 of the dust collection module 200,

The housing 100 is

The air nozzle 140 for emitting gas toward the lower end of the protective tube 132 passing through the housing 100 is accommodated in the inner space, and a hopper-shaped exhaust port 150 is installed at the bottom of the inner space.

Angular wire stripping device.
7. The method of claim 6,

The laser unit 300 is

It is possible to adjust the height from the upper plate of the housing 100 together with the protective tube 132, so that the irradiation distance of the laser to the square copper tube can be adjusted.

Angular wire stripping device.
A copper wire supply device for supplying each copper wire, a wire stripping device for stripping each copper wire supplied from the copper wire supply device, and a coil segment having a time to rotate at least 360° twisting while creating a coil segment with stripped copper wire including a molding device,

The angular copper wire stripping device as described in any one of claims 1 to 7

Coil segment manufacturing system.