Wire inlet system before wrapping of combined transposed conductor

Abstract

The invention relates to a wire inlet system before wrapping of a combined transposed conductor. The device comprises a first wire inlet module, the first wire inlet module comprises two first wire inlet units, and each first wire inlet unit comprises a first auxiliary guide device, a first wire axial bunching device and a wire radial bunching device; the second auxiliary guide device comprises two second wire inlet units, and each second wire inlet unit comprises a third auxiliary guide device, a second wire axial bunching device and a fourth auxiliary guide device which are sequentially arranged in the second direction; the shielded wire inlet module comprises a first shielded wire positioning device, a first shielded wire axial bunching device, a second shielded wire positioning device and a second shielded wire axial bunching device; and the wire harness combination module comprises a fifth auxiliary guide device, a combined wire harness axial wire bunching device, a sixth auxiliary guide device and a combined wire harness radial pressing device. According to the invention, the wrapping quality and efficiency of the combined transposed conductor with the shielded wire are improved.

Description

Technical Field

[0001] The invention relates to the technical field of transposed conductor production equipment, in particular to a wire feed system before wrapping of a combined transposed conductor. Background Art

[0002] Currently, in the manufacturing of high-voltage DC converter transformers, with increasing demands for equipment performance and reliability, combined transposed conductors with shielded wires are becoming increasingly popular. These conductors are internally shielded, forming an internal shield. This structure not only provides the conductor with excellent impact resistance but also strong overvoltage and short-circuit resistance, helping to extend the service life of the converter transformer's valve-side coil windings and ensure stable operation of the transformer and power supply system. Furthermore, these combined transposed conductors with shielded wires optimize the coil manufacturing process, simplify the processing of complex coils, improve production efficiency, and effectively reduce the overall size of the transformer, thereby lowering manufacturing costs.

[0003] However, in the actual production of combined transposed conductors, the two conductors and the shielding wire need to be fed together into a wrapping machine for overall insulation coating. Because the conductors drawn from the spool have a certain length of free-hanging section before entering the wrapping machine, if there is no effective support, the conductors are prone to "collapse" during the feeding process, which not only affects the smooth operation of the conductors themselves, but may also interfere with the normal operation of other equipment. In addition, the conductors and shielding wires are prone to contact or friction during the feeding process, causing damage to the conductor surface. Furthermore, because the wiring harness may be loose, the shielding wires and conductors are prone to crossing, misalignment, or deformation, which affects the wrapping quality and production efficiency of the transposed conductors. Summary of the Invention

[0004] To this end, the present invention provides a wire feeding system before the combined transposed conductor is wrapped, which can effectively prevent the conductors and shielding wires from positional displacement, crossing, misalignment and deformation during the wire feeding process, thereby improving the wrapping quality and efficiency of the combined transposed conductors with shielded wires.

[0005] In order to solve the above technical problems, the present invention provides a wire feeding system for a combined transposed conductor before wrapping, comprising a wire feeding platform, on the surface of which is provided: A first wire entry module includes two first wire entry units arranged along a first direction of the wire entry platform, each of the first wire entry units including a first auxiliary guide device, a first wire axial bundle device, a wire width bundle device, and a second auxiliary guide device arranged in sequence along a second direction of the wire entry platform; wherein the width direction of the wire is a third direction, the first direction and the second direction are respectively parallel to the table surface of the wire entry platform, and the first direction, the second direction, and the third direction are perpendicular to each other; A second wire entry module includes two second wire entry units arranged on one side of the first wire entry unit along the second direction, each second wire entry unit including a third auxiliary guide device, a second wire axial bundle device and a fourth auxiliary guide device arranged in sequence along the second direction; A shielded wire entry module is provided between the two first wire entry units and / or the two second wire entry units, and comprises a first shielded wire positioning device, a first shielded wire axial bundling device, a second shielded wire positioning device, and a second shielded wire axial bundling device, which are sequentially arranged along the second direction; The wiring harness combination module is arranged on one side of the shielded wire incoming module along the second direction. The wiring harness combination module includes a fifth auxiliary guide device, a combined harness axial harness device, a sixth auxiliary guide device and a combined harness radial clamping device arranged in sequence along the second direction.

[0006] In one embodiment of the present invention, the first auxiliary guide device, the second auxiliary guide device, the third auxiliary guide device, the fourth auxiliary guide device, the fifth auxiliary guide device and the sixth auxiliary guide device all include a guide bracket and a guide roller rotatably connected to the guide bracket and extending along the first direction.

[0007] In one embodiment of the present invention, the first wire axial harnessing device and the second wire axial harnessing device both include a first support, a second support, a first axial limiting roller rotatably connected to the first support, a second axial limiting roller rotatably connected to the second support, and a first driving device connected to the second support, the first axial limiting roller and the second axial limiting roller respectively extend along a third direction and are arranged opposite to each other, and the first driving device is used to drive the second axial limiting roller to move toward the first axial limiting roller to clamp the wire and axially constrain the wire.

[0008] In one embodiment of the present invention, the wire widthwise bundling device includes a third support and two widthwise limiting rollers that are rotatably connected to the third support. The two widthwise limiting rollers are arranged opposite to each other and extend along the second direction respectively. A gap is formed between the two widthwise limiting rollers for the wire to pass through, so as to constrain the wire widthwise.

[0009] In one embodiment of the present invention, the first shielding wire positioning device and the second shielding wire positioning device both include a positioning block, and the positioning block has a plurality of first holes for the shielding wires to pass through, which are spaced apart along the third direction.

[0010] In one embodiment of the present invention, the first shielded wire axial bundle device includes a second driving device, a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are arranged opposite to each other, and the second driving device is used to drive the second clamping plate to move toward the first clamping plate to clamp the width direction surfaces of multiple arranged shielded wires and apply axial restraining force to the multiple arranged shielded wires.

[0011] In one embodiment of the present invention, the second shielded wire axial bundle device includes two clamping blocks, and a second hole position corresponding to the first hole position is provided between the two clamping blocks.

[0012] In one embodiment of the present invention, the combined wiring harness axial wiring harness device includes two groups of clamping assemblies arranged relatively along the first direction, each of the clamping assemblies includes a fourth support, an axial pressure roller rotatably connected to the fourth support, and a third drive device connected to the fourth support. The third drive device of each of the two clamping assemblies drives the corresponding axial pressure roller to apply axial pressure to the combined wiring harness, and the combined wiring harness includes two conductors and a plurality of shielded wires clamped therebetween.

[0013] In one embodiment of the present invention, the radial pressing device of the combined wire harness includes a shell and a pressure plate arranged in the shell and movably adjustable along the third direction. The bottom plate of the shell is arranged opposite to the pressure plate. A threading space for the combined wire harness to pass through is formed between the bottom plate of the shell and the pressure plate. The pressure plate can apply radial pressure to the combined wire harness.

[0014] In one embodiment of the present invention, the top end of the shell is threadedly connected to a screw connected to the pressure plate, and the size of the threading space in the shell is adjusted by the screw.

[0015] The above technical solution of the present invention has the following advantages over the prior art: The present invention describes a pre-wrap wire feeding system for combined transposed conductors, enabling orderly arrangement, positioning, and pre-bundling of the combined transposed conductors with shielded wires before they enter the wrapping machine for insulation coating. This feeding mechanism, through the coordinated action of multiple modules, provides multi-directional guidance, positioning, and clamping of the conductors and shielding wires, ensuring they maintain a predetermined spatial relationship during the feeding process, preventing crossing, misalignment, deformation, and surface damage, thereby improving the efficiency and quality of subsequent wrapping processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0017] Figure 1It is a top view schematic diagram of the wire feeding mechanism of the combined transposed conductor of the present invention before being wrapped.

[0018] Figure 2 It is an axial side schematic diagram of the wire feeding mechanism of the combined transposed conductor of the present invention before being wrapped.

[0019] Figure 3 It is a structural schematic diagram of the guide roller of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the wire entry module of the present invention.

[0021] Figure 5 It is a schematic structural diagram of the first and second shielding wire positioning devices of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the first shielded wire axial bundle device of the present invention.

[0023] Figure 7 It is a schematic structural diagram of the second shielded wire axial bundle device of the present invention.

[0024] Figure 8 It is a structural schematic diagram of the combined wire harnessing axial wire harnessing device of the present invention.

[0025] Figure 9 It is a structural schematic diagram of the combined wire bundle radial pressing device of the present invention.

[0026] Description of the accompanying drawings: 100, first wire entry module; 110, first wire entry unit; 11, first auxiliary guide device; 111, guide bracket; 112, guide roller; 12, first wire axial bundling device; 121, first support; 122, second support; 123, first axial limiting roller; 124, second axial limiting roller; 125, first drive device; 13, wire radial bundling device; 131, third support; 132, radial limiting roller; 14, second auxiliary guide device; 200, second wire entry module; 210, second wire entry unit; 21, third auxiliary guide device; 22, second wire axial bundle device; 23, fourth auxiliary guide device; 300, shielded wire inlet module; 31, first shielded wire positioning device; 311, positioning block; 312, first hole; 32, first shielded wire axial bundle device; 321, second drive device; 322, first clamping plate; 323, second clamping plate; 33, second shielded wire positioning device; 34, second shielded wire axial bundle device; 341, clamping block; 400, wire harness assembly module; 41, fifth auxiliary guide device; 42, combined wire harness axial harness device; 421, fourth support; 422, axial pressing roller; 423, third drive device; 43, sixth auxiliary guide device; 44, combined wire harness radial pressing device; 441, housing; 442, pressure plate; 443, threading space; 444, screw; 500. Incoming line platform. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0028] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0029] In the present invention, "several" means one or more, "multiple" means more than two, "greater than," "less than," "exceeds," etc. are understood to exclude the number itself; "above," "below," "within," etc. are understood to include the number itself. In the description of the present invention, the use of "first" or "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0030] In the present invention, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection or electrical connection or mutual communication; and internal connection between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] Reference Figure 1 、 Figure 2 As shown, a wire feeding system for a combined transposed conductor before wrapping of the present invention includes a wire feeding platform 500, on the surface of which are provided: The first wire entry module 100 includes two first wire entry units 110 arranged along a first direction of the wire entry platform 500. Each first wire entry unit 110 includes a first auxiliary guide device 11, a first wire axial bundle device 12, a wire radial bundle device 13, and a second auxiliary guide device 14, which are sequentially arranged along a second direction of the wire entry platform 500. The second wire entry module 200 includes two second wire entry units 210 arranged on one side of the first wire entry unit 110 along the second direction, and each second wire entry unit 210 includes a third auxiliary guide device 21, a second wire axial bundle device 22 and a fourth auxiliary guide device 23 arranged in sequence along the second direction; the first auxiliary guide device 11 and the third auxiliary guide device 21 guide the wires to reduce friction and avoid damage to the wire insulation layer; the first wire axial bundle device 12 and the second wire axial bundle device 22 realize axial clamping and constraint of the wires to prevent the wires from deflecting; the wire radial bundle device 13 performs radial constraint on the wires, cooperates with axial clamping, and improves the stability of the overall operation of the wires.

[0032] The shielding wire entry module 300 is arranged between the two first wire entry units 110 and / or the two second wire entry units 210. The shielding wire entry module 300 includes a first shielding wire positioning device 31, a first shielding wire axial bundling device 32, a second shielding wire positioning device 33, and a second shielding wire axial bundling device 34, which are arranged in sequence along the second direction. The first shielding wire positioning device 31 and the second shielding wire positioning device 33 arrange the multiple shielding wires in sequence along the vertical direction to prevent them from being entangled with each other. The first shielding wire axial bundling device 32 clamps and axially constrains the width direction of the multiple shielding wires, and the second shielding wire axial bundling device 34 ensures that the shielding wires enter the subsequent workstations smoothly and neatly. The wiring harness combination module 400 is arranged on one side of the shielded wire incoming module 300 along the second direction. The wiring harness combination module 400 includes a fifth auxiliary guide device 41, a combined wire harness axial harness device 42, a sixth auxiliary guide device 43 and a combined wire harness radial clamping device 44 arranged in sequence along the second direction; the combined wire harness axial harness device 42 directionally combines two wires and a plurality of shielded wires sandwiched therebetween and applies axial pressure to make them fit tightly; the combined wire harness radial clamping device 44 applies radial pressure to the combined wire harness, effectively preventing the displacement or loosening of each part during subsequent operation.

[0033] It should be noted that the width direction of the conductor / shielding wire is the third direction, corresponding to the thickness direction of the cross-section of the conductor / shielding wire; the axial direction of the conductor / shielding wire is the direction of the surface perpendicular to its width direction, the first direction and the second direction are respectively parallel to the table top of the wire input platform 500, and the first direction, the second direction and the third direction are perpendicular to each other.

[0034] In one embodiment, referring to Figure 3 As shown, the first auxiliary guide device 11, the second auxiliary guide device 14, the third auxiliary guide device 21, the fourth auxiliary guide device 23, the fifth auxiliary guide device 41, and the sixth auxiliary guide device 43 all include a guide bracket 111 and a guide roller 112 rotatably connected to the guide bracket 111 and extending along the first direction. The guide roller 112 prevents the wires from rubbing against the surface of the wire feed platform 500, which could cause scratches and abrasions. The guide roller 112 is made of nylon, which greatly reduces friction between the wire insulation layer and the surface of the guide roller 112, preventing scratches and damage to the insulation layer.

[0035] In one embodiment, referring to Figure 4 As shown, the first wire axial harnessing device 12 and the second wire axial harnessing device 22 both include a first support 121, a second support 122, a first axial limiting roller 123 rotatably connected to the first support 121, a second axial limiting roller 124 rotatably connected to the second support 122, and a first driving device 125 connected to the second support 122. The first axial limiting roller 123 and the second axial limiting roller 124 extend along a third direction and are arranged opposite to each other. The first driving device 125 is used to drive the second axial limiting roller 124 to move toward the first axial limiting roller 123 to clamp the wire and axially constrain the wire.

[0036] Specifically, the first drive mechanism 125 utilizes a pneumatic cylinder, driven by air pressure, to apply an axial restraining force to the conductor, securing and positioning it, dispersing stress, and protecting the conductor from vibration during travel. The first and second axial limiting rollers 123, 124 also reduce friction between the conductor insulation and the roller surface, preventing scratches and damage to the insulation. These first and second axial limiting rollers 123, 124 are made of nylon.

[0037] In one embodiment, referring to Figure 4 As shown, the wire radial bundling device 13 includes a third support 131 and two radial limiting rollers 132 rotatably connected to the third support 131. The two radial limiting rollers 132 are arranged opposite to each other and extend along the second direction respectively. A gap is formed between the two radial limiting rollers 132 for the wire to pass through, so as to radially constrain the wire.

[0038] The wire radial binding device 13 can cooperate with the first wire axial binding device 12 to constrain the wire radially, further preventing the wire from shaking during its movement.

[0039] In one embodiment, referring to Figure 5 As shown, both the first shielding wire positioning device 31 and the second shielding wire positioning device 33 include a positioning block 311, each having a plurality of first holes 312 spaced apart along the third direction for the shielding wires to pass through. Two to four first holes 312 are provided. The first holes 312 are rectangular, with a thickness greater than their width. This arrangement allows the shielding wires to be arranged vertically, preventing interference between the shielding wires.

[0040] In one embodiment, referring to Figure 6 As shown, the first shielded wire axial harnessing device 32 includes a second drive device 321, a first clamping plate 322, and a second clamping plate 323. The first clamping plate 322 and the second clamping plate 323 are arranged opposite each other. The second drive device 321 is used to drive the second clamping plate 323 to move toward the first clamping plate 322 to clamp the width direction of the plurality of arranged shielded wires and apply an axial restraining force to the plurality of arranged shielded wires. The second drive device 321 is a cylinder.

[0041] Through the above arrangement, the first clamping plate 322 and the second clamping plate 323 are in contact with the width direction of the shielded wire, so that they are arranged vertically and neatly, preventing the shielded wire from being dropped or piled up, thereby ensuring that the shielded wire is smoothly combined with the conductor. The first clamping plate 322 and the second clamping plate 323 are made of nylon.

[0042] In one embodiment, referring to Figure 7 As shown, the second shielding wire axial bundle device 34 includes two clamping blocks 341 , and a second hole corresponding to the first hole 312 is provided between the two clamping blocks 341 .

[0043] In one embodiment, referring to Figure 8 As shown, the combined wiring harness axial wiring harness device 42 includes two groups of clamping assemblies arranged relatively along the first direction, each of the clamping assemblies includes a fourth support 421, an axial clamping roller 422 rotatably connected to the fourth support 421, and a third drive device 423 connected to the fourth support 421. The third drive device 423 of each of the two clamping assemblies drives the corresponding axial clamping roller 422 to apply axial pressure to the combined wiring harness, so as to tightly fix the shielding wire and the conductor axially, thereby restraining the shielding wire.

[0044] The combined wiring harness includes two (transposed) conductors and a plurality of shielded wires sandwiched therebetween.

[0045] The third driving device 423 is a cylinder.

[0046] In one embodiment, referring to Figure 9 As shown, the combined harness radial compression device 44 includes a housing 441 and a pressure plate 442 disposed in the housing 441 and movable along the third direction. The bottom plate of the housing 441 is disposed opposite to the pressure plate 442. A threading space 443 for the combined harness to pass through is formed between the bottom plate of the housing 441 and the pressure plate 442. The pressure plate 442 can apply radial pressure to the combined harness, tightly fixing the shielded wire and the conductor radially to prevent the shielded wire from shifting during operation. The top of the housing 441 is threadedly connected to a screw 444 connected to the pressure plate 442. The size of the threading space 443 in the housing 441 is adjusted by the screw 444 to accommodate different harness specifications.

[0047] In one embodiment, to facilitate wire entry, the centerlines of the first and second axial wire harnessing devices 12 and 22, respectively, along the second direction, are positioned at an angle to the centerline of the tabletop along the second direction. The two first wire entry units 110 and the two second wire entry units 210 are symmetrically located on either side of the centerline of the tabletop along the second direction. The centerlines of the shielded wire entry module 300 and the harness assembly module 400 are positioned along the centerline of the tabletop along the second direction.

[0048] Working process: Two wires and multiple shielded wires are led out from the pay-off end and enter the wire entry platform 500. The two wires pass through the first wire entry module 100 and the second wire entry module 200 in sequence, and the multiple shielded wires pass through the shielded wire entry module 300. The wires first pass through the first auxiliary guide device 11, and then enter the first wire axial bundling device 12. The first axial limiting roller and the second axial limiting roller clamp the wire to achieve axial positioning and constraint, preventing the wire from shaking or deflecting due to uneven tension. Then it enters the wire radial bundling device 13, and the wire is radially limited by a pair of radial limiting rollers 132 to further improve the parallelism and stability of the wire during the entry process. The second auxiliary guide device 14 ensures that the wire is in good condition before entering the next workstation. The second wire axial bundling device 22 continues to axially clamp and constrain the wire. After processing, the two wires can be stably arranged in parallel in the subsequent operation position.

[0049] Multiple shielded wires are threaded through the first hole 312 of the positioning block 311 in the first shielded wire positioning device 31, where they are neatly arranged in a vertical sequence to prevent entanglement or tangling. The first shielded wire axial binding device 32, driven by a pair of clamps and a pneumatic cylinder, clamps the shielded wires along their width, applying an axial restraining force to ensure a tighter arrangement and prevent loosening or crossing. After threading through the second shielded wire positioning device 33, the second shielded wire axial binding device 34 applies an axial restraining force to the arranged shielded wires.

[0050] The conductors and shielding wires pass through the fifth auxiliary guide device 41 in sequence to achieve preliminary merging and fine-tuning of their spatial positions. They then enter the combined harness axial harness device 42, where two sets of clamping assemblies axially clamp the harness, so that the two conductors are directionally combined and tightly fitted with the multiple shielding wires clamped therein, effectively preventing displacement or loosening between the shielding wires and the conductors. Next, they pass through the sixth auxiliary guide device 43 and enter the combined harness radial clamping device 44. The combined harness radial clamping device 44 applies radial pressure to the combined harness through the pressure plate 442 mechanism, tightly fixing the conductors and shielding wires in the radial direction to prevent loosening or displacement during operation, and then enter the subsequent wrapping process.

[0051] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A wire feeding system for a combined transposed conductor before wrapping, characterized in that: It comprises a line-input platform (500), on the surface of which are provided: A first wire entry module (100) comprises two first wire entry units (110) arranged along a first direction of the wire entry platform (500), each of the first wire entry units (110) comprising a first auxiliary guide device (11), a first wire axial bundle device (12), a wire width bundle device (13), and a second auxiliary guide device (14) arranged in sequence along a second direction of the wire entry platform (500); wherein the width direction of the wire is a third direction, the first direction and the second direction are respectively parallel to the table surface of the wire entry platform (500), and the first direction, the second direction, and the third direction are perpendicular to each other; A second wire entry module (200) comprises two second wire entry units (210) arranged on one side corresponding to the first wire entry unit (110) along the second direction, each second wire entry unit (210) comprising a third auxiliary guide device (21), a second wire axial bundle device (22) and a fourth auxiliary guide device (23) arranged in sequence along the second direction; A shielded wire entry module (300) is arranged between the two first wire entry units (110) and / or the two second wire entry units (210), and the shielded wire entry module (300) comprises a first shielded wire positioning device (31), a first shielded wire axial bundling device (32), a second shielded wire positioning device (33), and a second shielded wire axial bundling device (34) arranged in sequence along the second direction; A wire harness assembly module (400) is arranged on one side of the shielded wire feeder module (300) along the second direction, and the wire harness assembly module (400) comprises a fifth auxiliary guide device (41), a combined wire harness axial bundle device (42), a sixth auxiliary guide device (43), and a combined wire harness radial pressing device (44), which are sequentially arranged along the second direction.

2. A combined transposed conductor incoming line system before wrapping according to claim 1, characterized in that: The first auxiliary guide device (11), the second auxiliary guide device (14), the third auxiliary guide device (21), the fourth auxiliary guide device (23), the fifth auxiliary guide device (41) and the sixth auxiliary guide device (43) all include a guide bracket (111) and a guide roller (112) rotatably connected to the guide bracket (111) and extending along the first direction.

3. The line feed system before wrapping of a combined transposed conductor according to claim 1, characterized in that: The first wire axial bundling device (12) and the second wire axial bundling device (22) both include a first support (121), a second support (122), a first axial limiting roller (123) rotatably connected to the first support (121), a second axial limiting roller (124) rotatably connected to the second support (122), and a first driving device (125) connected to the second support (122), wherein the first axial limiting roller (123) and the second axial limiting roller (124) extend along a third direction and are arranged relative to each other, and the first driving device (125) is used to drive the second axial limiting roller (124) to move toward the first axial limiting roller (123) to clamp the wire and axially constrain the wire.

4. The line feed system before wrapping of a combined transposed conductor according to claim 1, characterized in that: The wire radial bundling device (13) comprises a third support (131) and two radial limiting rollers (132) rotatably connected to the third support (131), the two radial limiting rollers (132) being arranged opposite to each other and extending along the second direction respectively, and a gap for the wire to pass through is formed between the two radial limiting rollers (132) so as to radially constrain the wire.

5. The line feed system before wrapping of a combined transposed conductor according to claim 1, characterized in that: The first shielding wire positioning device (31) and the second shielding wire positioning device (33) both comprise a positioning block (311), wherein the positioning block (311) has a plurality of first holes (312) for the shielding wires to pass through, spaced apart along the third direction.

6. The line feed system before wrapping of a combined transposed conductor according to claim 1, characterized in that: The first shielded wire axial bundle device (32) comprises a second driving device (321), a first clamping plate (322) and a second clamping plate (323), wherein the first clamping plate (322) and the second clamping plate (323) are arranged relative to each other, and the second driving device (321) is used to drive the second clamping plate (323) to move toward the first clamping plate (322) to clamp the width direction surfaces of the plurality of arranged shielded wires and apply an axial restraining force to the plurality of arranged shielded wires.

7. The line feed system before wrapping of a combined transposed conductor according to claim 5, characterized in that: The second shielding wire axial bundle device (34) comprises two clamping blocks (341), and a second hole position corresponding to the first hole position (312) is provided between the two clamping blocks (341).

8. The line feed system before wrapping of a combined transposed conductor according to claim 1, characterized in that: The combined wiring harness axial harness device (42) includes two sets of clamping assemblies arranged relative to each other along the first direction, each of the clamping assemblies includes a fourth support (421), an axial pressing roller (422) rotatably connected to the fourth support (421), and a third driving device (423) connected to the fourth support (421), and the third driving device (423) of each of the two clamping assemblies drives the corresponding axial pressing roller (422) to apply axial pressure to the combined wiring harness, and the combined wiring harness includes two conductors and a plurality of shielded wires clamped therebetween.

9. The wire feeding system before wrapping of a combined transposed conductor according to claim 1, characterized in that: The combined wire harness radial pressing device (44) comprises a housing (441) and a pressure plate (442) arranged in the housing (441) and movable and adjustable along the third direction. The bottom plate of the housing (441) and the pressure plate (442) are arranged opposite to each other. A threading space (443) for the combined wire harness to pass through is formed between the bottom plate of the housing (441) and the pressure plate (442). The pressure plate (442) can apply radial pressure to the combined wire harness.

10. A combined transposed conductor incoming line system before wrapping according to claim 9, characterized in that: The top end of the housing (441) is threadedly connected to a screw rod (444) connected to the pressing plate (442), and the size of the threading space (443) in the housing (441) is adjusted by the screw rod (444).

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