A two-way warp and weft thread braiding device

Abstract

The application relates to the technical field of wire harness weaving processing, in particular to a bidirectional warp and weft wire harness weaving device, which comprises a rack, a first weaving mechanism, a second weaving mechanism and a transmission assembly. The first weaving mechanism comprises a first rotary table, and the second weaving mechanism comprises a second rotary table. The first rotary table and the second rotary table are directly driven to rotate reversely and synchronously by the transmission assembly, the speed deviation problem caused by response speed difference or load fluctuation in traditional double-motor driving is eliminated, two groups of wires are driven by the first rotary table and the second rotary table respectively, and a uniform and staggered shielding layer is formed on the surface of the wire core, the weaving density consistency and structural reliability of the shielding layer are significantly improved, and the device is suitable for the cable processing field with high density and high shielding performance requirements.

Description

Technical Field

[0001] This application relates to the field of wire harness braiding technology, and in particular to a bidirectional warp and weft wire harness braiding device. Background Technology

[0002] Wire harnesses are widely used in industrial production. The outer surface of their wire cores usually needs to be braided with a shielding layer to form a shielding structure. This shielding layer can effectively isolate external electromagnetic interference and ensure the stability of the wire harness signal transmission. Therefore, the braiding of the shielding layer is a key process in wire harness processing.

[0003] In related technologies, two independent unwinding mechanisms are usually used to be responsible for weaving the shielding layer in the warp and weft directions respectively. In order to achieve synchronous reverse rotation of the two unwinding mechanisms, the existing technology generally uses two independent drive motors to drive the two unwinding mechanisms respectively.

[0004] However, this method has the following drawbacks: due to factors such as differences in response speed and inconsistent load characteristics between the two sets of motors during operation, the rotation speed of the two independent unwinding mechanisms may deviate slightly, which in turn leads to uneven weaving density of the warp and weft shielding layers. Utility Model Content

[0005] To address the aforementioned problems, this application provides a bidirectional warp and weft yarn bundle weaving device.

[0006] The bidirectional warp and weft yarn bundle braiding device provided in this application adopts the following technical solution: A bidirectional warp and weft yarn harness braiding device is used to braid two sets of yarns together at the yarn core. It includes a frame, a first braiding mechanism, a second braiding mechanism, and a transmission assembly. The first braiding mechanism, the second braiding mechanism, and the transmission assembly are all fixed to the frame. The first braiding mechanism includes a first turntable, the second braiding mechanism includes a second turntable, and the transmission assembly includes a transmission component, a first bevel gear, a second bevel gear, a third bevel gear, a first transmission shaft, a second transmission shaft, a third transmission shaft, and a drive motor. The transmission component has a U-shaped structure. A first insertion hole is provided in the middle of the transmission component. A second insertion hole and a third insertion hole are provided on both sides of the transmission component. The first bevel gear is coaxially fixed with the first transmission shaft. The first transmission shaft passes through the first insertion hole and is coaxially fixed with the drive motor. The first transmission shaft rotatably bears the load on the first insertion hole. The second bevel gear is coaxially fixed with the second transmission shaft. The second transmission shaft rotatably bears the load on the second insertion hole. The third bevel gear is coaxially fixed with the third transmission shaft. The third transmission shaft rotatably bears the load on the third insertion hole. The end of the third transmission shaft away from the third bevel gear passes through the second insertion hole. The second transmission shaft is sleeved on the third transmission shaft. The second bevel gear is located above the third bevel gear. The two ends of the first bevel gear mesh with the second bevel gear and the third bevel gear, respectively. The first turntable is coaxially fixed with the second transmission shaft. The second turntable is coaxially fixed with the third transmission shaft.

[0007] By adopting the above technical solution, the first braiding mechanism and the second braiding mechanism simultaneously release two different sets of wires. After the drive motor starts, since the output shaft of the drive motor is coaxially fixed with the first transmission shaft, the first transmission shaft further drives the first bevel gear to rotate. Since the two ends of the first bevel gear mesh with the second bevel gear and the third bevel gear respectively, and the second bevel gear is coaxially fixed with the second transmission shaft and the third bevel gear is coaxially fixed with the third transmission shaft, the second transmission shaft and the third transmission shaft rotate synchronously in opposite directions under the load of the transmission components. Since the first turntable is coaxially fixed with the second transmission shaft and the second turntable is coaxially fixed with the third transmission shaft, the first turntable and the second turntable rotate synchronously in opposite directions, realizing the warp and weft braiding of the two sets of wires to the wire core. This solves the problem of the deviation in the rotation speed of the first turntable and the second turntable caused by the difference in response speed and the inconsistency in load characteristics of the two independent drive motors in the prior art. This reduces the unevenness of the cross braiding density of the shielding layer in the warp and weft directions, significantly improves the density uniformity and reliability of the shielding layer, and is suitable for the field of high-precision cable processing.

[0008] Preferably, the first braiding mechanism further includes a plurality of first wire unwinding rollers and a first support member. The plurality of first wire unwinding rollers are evenly distributed on the outer peripheral wall of the first turntable, and the first support member is fixed on the outer peripheral wall of the first turntable. The first wire unwinding rollers rotate and are supported on the first support member.

[0009] By adopting the above technical solution, the first wire unwinding roller is mainly responsible for the unwinding and braiding of the wire in the warp direction. The uniform distribution of several first wire unwinding rollers ensures that each wire is subjected to balanced force during the unwinding process, reducing tension differences caused by positional deviations. This reduces the risk of uneven tension, breakage, or entanglement of the shielding layer during the braiding process. The design of several first wire unwinding rollers supports the simultaneous unwinding of multiple wires, improving the efficiency of warp and weft braiding of the wire, and is especially suitable for the processing requirements of high-density shielding layers.

[0010] Preferably, the first braiding mechanism further includes a first guide assembly, which includes a first guide post, a second guide post, and a first guide wheel. The first guide post, the second guide post, and the first guide wheel are all fixed on the first support member. The first guide post and the second guide post are distributed at both ends of the first wire unwinding roller. The wire is unwound along the first wire unwinding roller and abuts against the first guide post, the second guide post, and the first guide wheel in sequence.

[0011] By adopting the above technical solution, the first guide post and the second guide post restrict the radial displacement of the wire through physical contact, ensuring that the wire is stably conveyed along the predetermined path after unwinding, while maintaining the wire in a taut state, reducing the problem of insufficient tension or uneven braiding density caused by loose wire. The first guide wheel ensures that the wire has a smooth path before entering the braiding area through rotational movement, reducing the risk of tangling or wire breakage caused by deviation.

[0012] Preferably, the first braiding mechanism further includes an avoidance component, which includes a drive cylinder and an avoidance strip. Several sets of the avoidance components are provided, and each set of the avoidance components corresponds to one of the first wire unwinding rollers. The piston rod of the drive cylinder is vertically upward and is fixedly connected to the avoidance strip. The first turntable is provided with a sliding groove, and the avoidance strip is slidably disposed in the sliding groove in the vertical direction. The avoidance strip is provided with a first clearance hole, through which the wire passes to braid the wire core.

[0013] By adopting the above technical solution, the piston rod of the drive cylinder is vertically upward and fixedly connected to the clearance strip. By controlling the extension and retraction of the piston rod of the drive cylinder, the clearance strip slides up and down along the sliding groove of the first turntable, dynamically adjusting the position of the first clearance hole. During the braiding process, the wire passes through the first clearance hole of the clearance strip. The up and down movement of the clearance strip ensures that the wire of the first braiding mechanism avoids the wire of the second braiding mechanism when winding the core, reducing the entanglement caused by direct contact between the two sets of wires.

[0014] Preferably, the second braiding mechanism includes a second wire unwinding roller and a second carrier. A plurality of second wire unwinding rollers are provided, and the plurality of second wire unwinding rollers are arranged circumferentially along the second turntable. A plurality of second carriers are provided, and the plurality of second carriers correspond one-to-one with the second wire unwinding rollers. The second carriers are fixedly connected to the second turntable, and the second wire unwinding rollers are rotatably supported on the second carriers.

[0015] By adopting the above technical solution, the second wire unwinding roller is mainly responsible for the unwinding and weaving of the wire in the weft direction. The second wire unwinding roller is evenly distributed around the second turntable and is fixed one by one by the second bearing member to ensure that the wire is subjected to balanced force during the unwinding process, reducing tension differences caused by position deviation, thereby reducing the risk of uneven copper wire tension, breakage or tangling during the weaving process. Multiple wire unwinding rollers can support the simultaneous unwinding of multiple wires, improving the efficiency of warp and weft weaving, and are especially suitable for the processing needs of high-density shielding layers.

[0016] Preferably, the second braiding mechanism includes a second guide assembly, which includes a third guide post, a fourth guide post, and a second guide wheel. The third guide post, the second guide wheel, and the fourth guide post are all fixed on the second support member. The fourth guide post has a second clearance hole. The wire is unwound along the second wire unwinding roller and abuts against the inner wall of the third guide post, the second clearance hole, and the second guide wheel in sequence.

[0017] By adopting the above technical solution, the inner walls of the third guide post and the second clearance hole restrict the radial displacement of the wire through physical contact, while keeping the wire under tension before entering the braiding area, reducing the problem of insufficient tension or uneven braiding density caused by loose wire. The second guide wheel ensures that the wire is stably transported along the predetermined path after unwinding, ensuring that the wire has a smooth path before entering the braiding area, reducing the risk of tangling or breakage caused by deviation.

[0018] Preferably, it further includes a wire core unwinding roller, the second drive shaft and the third drive shaft are hollow, the unwinding roller is located below the first braiding mechanism and the second braiding mechanism, the unwinding roller is rotatably supported on the frame, and the wire core passes from the wire core unwinding roller through the interior of the second drive shaft and the third drive shaft.

[0019] By adopting the above technical solution, since the second drive shaft and the third drive shaft are coaxially fixed with the first turntable and the second turntable respectively, and the second drive shaft is sleeved on the first drive shaft, the wire core passes through the interior of the second drive shaft and the third drive shaft to the middle position of the first turntable and the second turntable. The first wire unwinding roller and the second wire unwinding roller are distributed around the wire core. The warp and weft of the two sets of wires are woven by the counter-rotation of the first turntable and the second turntable. The shielding layer thickness is highly uniform, which significantly improves the weaving efficiency and reliability and is suitable for the field of high-precision cable processing.

[0020] Preferably, it further includes a take-up roller, which is located above the first weaving mechanism and the second weaving mechanism, and the take-up roller is rotatably supported on the frame.

[0021] By adopting the above technical solution, the take-up roller is located above the first braiding mechanism and the second braiding mechanism. The wire core directly and vertically upwards from the inside of the second and third drive shafts, passes through the warp and weft braiding of the first and second braiding mechanisms to form a wire bundle, and then enters the take-up roller for direct winding. This shortens the winding path, reduces frictional resistance and tension fluctuations during the wire bundle winding process, and reduces the problem of wire breakage or entanglement caused by excessively long paths.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The drive motor drives the first bevel gear to rotate through the first transmission shaft. The two ends of the first bevel gear mesh with the second bevel gear and the third bevel gear respectively, driving the second transmission shaft and the third transmission shaft to rotate synchronously in opposite directions. The first turntable is coaxially fixed with the second transmission shaft, and the second turntable is coaxially fixed with the third transmission shaft, realizing the mechanical forced synchronous reverse rotation of the first turntable and the second turntable, so that the two sets of wires can complete the warp and weft interlacing weaving around the wire core. The rigid transmission of the first bevel gear, the second bevel gear and the third bevel gear set eliminates the rotational deviation caused by the response difference of the two motors and the load fluctuation, significantly improving the uniformity of the shielding layer weaving density, which is suitable for the field of high-precision cable processing. 2. The first guide post and the second guide post restrict the radial displacement of the wire through physical contact, ensuring that the wire is stably transported along the predetermined path. At the same time, the spacing between the first guide post and the second guide post is designed to keep the wire taut, reducing insufficient tension or uneven braiding density caused by looseness. The first guide wheel optimizes the path guidance of the wire before entering the braiding area through rotational motion, eliminating the risk of deviation and reducing the probability of tangling or breakage.

[0023] 3. The piston rod of the drive cylinder is vertically upward and fixedly connected to the clearance strip. The clearance strip slides vertically along the sliding groove of the first turntable. The clearance strip has a first clearance hole for the wire to pass through. By controlling the extension and retraction of the piston rod of the drive cylinder, the clearance strip can dynamically adjust the position of the first clearance hole, so that the wire of the first braiding mechanism actively avoids the wire path of the second braiding mechanism when it is braiding around the core, reducing the entanglement or interference caused by direct contact between the two sets of wires. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0025] Figure 2 This is a structural schematic diagram of an embodiment of this application.

[0026] Figure 3 yes Figure 2 An enlarged diagram of A in the diagram.

[0027] Figure 4 yes Figure 2 Enlarged diagram of B in the diagram.

[0028] Figure 5 This is a structural schematic diagram of an embodiment of this application.

[0029] Figure 6 This is a structural diagram of the transmission assembly and the first weaving mechanism.

[0030] Figure 7 This is a schematic diagram of the transmission assembly and the second weaving mechanism.

[0031] Figure 8 This is a structural diagram of the transmission components and drive motor.

[0032] Explanation of reference numerals in the attached drawings: 1. Frame; 2. First braiding mechanism; 21. First turntable; 211. Sliding groove; 22. First wire unwinding roller; 23. First support member; 24. First guide assembly; 241. First guide post; 242. Second guide post; 243. First guide wheel; 25. Clearance assembly; 251. Drive cylinder; 252. Clearance bar; 2521. First clearance hole; 3. Second braiding mechanism; 31. Second turntable; 32. Second wire unwinding roller; 33. Second support member; 34. Second guide assembly; 341, third guide post; 342, fourth guide post; 3421, second clearance hole; 345, second guide wheel; 4, transmission assembly; 41, transmission component; 411, first insertion hole; 412, second insertion hole; 413, third insertion hole; 42, first bevel gear; 43, second bevel gear; 44, third bevel gear; 45, first drive shaft; 46, second drive shaft; 47, third drive shaft; 48, drive motor; 5, wire core unwinding roller; 6, take-up roller; 7, connecting component. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0034] This application discloses a bidirectional warp and weft braiding device. The device is used to braid two sets of wires into a core. In this embodiment, the wires used are copper wires. One set of copper wires serves as the warp wire, extending along the length of the core, while the other set serves as the weft wire, winding around the core in a direction perpendicular to its length. The two sets of copper wires interweave and interlock to form a tight shielding layer outside the core. This not only enhances the overall strength of the core by utilizing the properties of copper wire but also provides the core with conductivity, shielding, and other functions as needed.

[0035] Reference Figure 1 and Figure 2 Furthermore, a bidirectional warp and weft yarn harness braiding device includes a frame 1, a first braiding mechanism 2 and a second braiding mechanism 3, wherein the first braiding mechanism 2, the second braiding mechanism 3 and the transmission assembly 4 are all fixed on the frame 1.

[0036] Reference Figure 3 and Figure 4 Specifically, the first braiding mechanism 2 includes a first turntable 21, several first wire unwinding rollers 22, a first carrier 23, a first guide assembly 24, and a clearance assembly 25. The first turntable 21 is an important component of the first braiding mechanism 2. The first turntable 21 is a circular platform structure. Several first wire unwinding rollers 22 are evenly distributed along the outer peripheral wall of the first turntable 21. In this embodiment, eight first wire unwinding rollers 22 are provided. The first wire unwinding rollers 22 are generally cylindrical structures.

[0037] Furthermore, the first support member 23 is fixed to the outer peripheral wall of the first turntable 21, and the first wire unwinding roller 22 is rotatably supported on the first support member 23, so that the first wire unwinding roller 22 can rotate flexibly to realize the unwinding of the wire.

[0038] It should be noted that the first wire unwinding roller 22 is mainly responsible for the unwinding and braiding of the wire in the warp direction. The uniform distribution of the first wire unwinding roller 22 ensures that each wire is subjected to balanced force during the unwinding process, reducing tension differences caused by positional deviations. This reduces the risk of uneven tension, breakage, or tangling of the shielding layer during braiding. The design of multiple first wire unwinding rollers 22 supports the simultaneous unwinding of multiple wires, improving the efficiency of warp and weft braiding, and is especially suitable for the processing requirements of high-density shielding layers. Correspondingly, the first guide assembly 24 includes a first guide post 241, a second guide post 242, and a first guide wheel 243. Specifically, the first guide post 241 and the second guide post 242 are both columnar structures, which are vertically fixed on the first support member 23. The first guide post 241 and the second guide post 242 restrict the radial displacement of the wire through physical contact, ensuring that the wire is stably conveyed along a predetermined path after unwinding, while maintaining the wire in a taut state.

[0039] Furthermore, the first guide wheel 243 is typically a circular wheel with a groove. A connecting rod is provided between the first guide wheel 243 and the first support member 23. The first guide wheel 243 rotates and is supported on the connecting rod, which is fixedly connected to the first support member 23. The wire is unwound along the first wire unwinding roller 22 and abuts against the first guide post 241, the second guide post 242, and the first guide wheel 243 in sequence. In this way, the wire can be conveyed along a predetermined path, ensuring the accuracy of the weaving.

[0040] Meanwhile, the avoidance component 25 includes a drive cylinder 251 and an avoidance strip 252. The piston rod of the drive cylinder 251 is vertically upward and the drive cylinder 251 is fixed on the frame 1. The avoidance strip 252 is a long strip structure. The piston rod of the drive cylinder 251 is fixedly connected to the avoidance strip 252. The first turntable 21 is provided with a sliding groove 211. The avoidance strip 252 is slidably disposed in the sliding groove 211 in the vertical direction. The avoidance strip 252 is provided with a first clearance hole 2521. The wire passes through the first clearance hole 2521 to braid the wire core.

[0041] This explains that the piston rod of the drive cylinder 251 is vertically upward and fixedly connected to the clearance strip 252. By controlling the extension and retraction of the piston rod of the drive cylinder 251, the clearance strip 252 slides up and down along the sliding groove 211 of the first turntable 21, dynamically adjusting the position of the first clearance hole 2521. During the braiding process, the wire passes through the first clearance hole 2521 of the clearance strip 252. The up and down movement of the clearance strip 252 ensures that the wire of the first braiding mechanism 2 avoids the wire of the second braiding mechanism 3 when winding the core, reducing the entanglement caused by direct contact between the two sets of wires.

[0042] These components are combined together: the first turntable 21 rotates to drive the first wire unwinding roller 22 to unwind the wire; the first guide assembly 24 guides the wire direction; and the avoidance assembly 25 adjusts the wire position in a timely manner, together completing the preparation work for weaving the first set of wires.

[0043] Furthermore, the second weaving mechanism 3 includes a second turntable 31, a plurality of second wire unwinding rollers 32, a second carrier 33, and a second guide assembly 34. The second turntable 31 is similar to the first turntable 21 and is also a circular platform structure. The second turntable 31 is located in the middle of the first turntable 21, and the first turntable 21 surrounds the second turntable 31.

[0044] Several second wire unwinding rollers 32 are arranged circumferentially along the second turntable 31. In this embodiment, eight second wire unwinding rollers 32 are also provided. The second wire unwinding rollers 32 are mainly responsible for unwinding and weaving the wire in the weft direction. The structure and material of the second wire unwinding rollers 32 are the same as those of the first wire unwinding rollers 22. Several second bearing members 33 are provided, corresponding one to one with the second wire unwinding rollers 32. The second bearing members 33 are fixed on the second turntable 31. The second wire unwinding rollers 32 rotate and are supported on the second bearing members 33, so that the second wire unwinding rollers 32 can rotate flexibly to unwind the wire.

[0045] Meanwhile, the second guide assembly 34 includes a third guide post 341, a fourth guide post 342, and a second guide wheel 345. The third guide post 341, the fourth guide post 342, and the second guide wheel 345 are similar to the first guide post 241 and the first guide wheel 243, respectively. The third guide post 341 and the fourth guide post 342 are fixed on the second support member 33. The end of the fourth guide post 342 is provided with a second clearance hole 3421. A connecting member 7 is also provided between the second guide wheel 345 and the second support member 33. The second guide wheel 345 is rotatably supported on the connecting member 7. The connecting member 7 is fixedly connected to the second support member 33. The wire is unwound along the second wire unwinding roller 32 and abuts against the third guide post 341, the second clearance hole 3421, and the third guide post 341 in sequence, thereby guiding the wire.

[0046] Furthermore, the third guide post 341 and the second clearance hole 3421 also restrict the radial displacement of the wire through physical contact, enabling the wire to be transported along a predetermined path and ensuring the accuracy of the braiding. The second guide wheel 345 ensures that the wire is transported stably along the predetermined path after unwinding, while maintaining the wire in a taut state.

[0047] These components are combined so that the second turntable 31 rotates to drive the second wire unwinding roller 32 to unwind the wire, and the second guide assembly 34 guides the wire to complete the preparation work for weaving the second set of wires.

[0048] Reference Figure 5 Furthermore, a bidirectional warp and weft yarn harness weaving device also includes a transmission assembly 4, which is fixed on the frame 1. The transmission assembly 4 includes a transmission component 41, a first bevel gear 42, a second bevel gear 43, a third bevel gear 44, a first transmission shaft 45, a second transmission shaft 46, a third transmission shaft 47, and a drive motor 48.

[0049] Reference Figure 6 , Figure 7 as well as Figure 8Furthermore, the transmission component 41 has a U-shaped structure. A first insertion hole 411 is provided in the middle of the transmission component 41, and a second insertion hole 412 and a third insertion hole 413 are provided on both sides of the transmission component 41, respectively. The first bevel gear 42 is coaxially fixed with the first transmission shaft 45. The first transmission shaft 45 passes through the first insertion hole 411 and is coaxially fixed with the drive motor 48. The second bevel gear 43 is coaxially fixed with the second transmission shaft 46. The second transmission shaft 46 is rotatably supported by the second insertion hole 412. The third bevel gear 44 is coaxially fixed with the third transmission shaft 47. The third transmission shaft 47 is rotatably supported by the third insertion hole 413. The third transmission shaft 47 passes through the second insertion hole 412. The second transmission shaft 46 is sleeved on the third transmission shaft 47 so that the first turntable 21 and the second turntable 31 are concentric.

[0050] Furthermore, the second bevel gear 43 is located above the third bevel gear 44, and the two ends of the first bevel gear 42 mesh with the second bevel gear 43 and the third bevel gear 44 respectively. The first turntable 21 is coaxially fixed with the second transmission shaft 46, and the second turntable 31 is coaxially fixed with the third transmission shaft 47.

[0051] This explains that the first braiding mechanism 2 and the second braiding mechanism 3 release two different sets of wires simultaneously. After the drive motor 48 starts, since the output shaft of the drive motor 48 is coaxially fixed with the first transmission shaft 45, it further drives the first bevel gear 42 to rotate through the first transmission shaft 45. Since the two ends of the first bevel gear 42 are respectively meshed with the second bevel gear 43 and the third bevel gear 44, and the second bevel gear 43 is coaxially fixed with the second transmission shaft 46 and the third bevel gear 44 is coaxially fixed with the third transmission shaft 47, the second transmission shaft 46 and the third transmission shaft 47 rotate synchronously in opposite directions under the support of the transmission component 41.

[0052] Meanwhile, because the first turntable 21 is coaxially fixed with the second drive shaft 46, and the second turntable 31 is coaxially fixed with the third drive shaft 47, the first turntable 21 and the second turntable 31 are driven to rotate synchronously in opposite directions. Furthermore, the first turntable 21 and the second turntable 31 are concentric, enabling the warp and weft weaving of the two sets of wires to the wire core. This solves the problem of rotational speed deviation between the first turntable 21 and the second turntable 31 caused by the difference in response speed and inconsistent load characteristics of the two independent drive motors 48 in the existing technology. This reduces the uneven weaving density of the warp and weft shielding layer, significantly improving the density uniformity and reliability of the shielding layer, making it suitable for high-precision cable processing. This embodiment also includes a wire core unwinding roller 5 and a take-up roller 6. The wire core unwinding roller 5 is located below the first braiding mechanism 2 and the second braiding mechanism 3, and is rotatably supported on the frame 1. The wire core unwinding roller 5 is used to place the wire core. The interiors of the second drive shaft 46 and the third drive shaft 47 are hollow. The wire core passes through the interiors of the second drive shaft 46 and the third drive shaft 47 from the wire core unwinding roller 5. Since the second drive shaft 46 and the third drive shaft 47 are hollow, a channel is provided for the transport of the wire core.

[0053] Furthermore, since the second drive shaft 46 and the third drive shaft 47 are coaxially fixed to the first turntable 21 and the second turntable 31 respectively, and the second drive shaft 46 is sleeved on the first drive shaft 45, the wire core passes through the interior of the second drive shaft 46 and the third drive shaft 47 to the middle position of the first turntable 21 and the second turntable 31. The first wire unwinding roller 22 and the second wire unwinding roller 32 are distributed around the wire core. The warp and weft of the two sets of wires are achieved by the counter-rotation of the first turntable 21 and the second turntable 31. The shielding layer thickness uniformity is high, significantly improving the weaving efficiency and reliability, and is suitable for high-precision cable processing. In addition, the take-up roller 6 is located above the first braiding mechanism 2 and the second braiding mechanism 3, and is rotatably supported on the frame 1. The core wire is directly vertically upward from the inside of the second drive shaft 46 and the third drive shaft 47, and after being formed into a wire bundle by the warp and weft weaving of the first braiding mechanism 2 and the second braiding mechanism 3, it enters the take-up roller 6 for direct winding, which shortens the winding path, reduces the frictional resistance and tension fluctuation during the winding process, and reduces the problem of wire breakage or entanglement caused by excessively long path.

[0054] The implementation principle of a bidirectional warp and weft yarn bundle braiding device according to an embodiment of this application is as follows: The wire core is unwound from the wire core unwinding roller and passes through the hollow internal channel of the third drive shaft. Since the second and third drive shafts are coaxially fixed to the first and second turntables respectively, the wire core is guided to the middle position of the two turntables.

[0055] The first wire unwinding roller is mainly responsible for unwinding and braiding the wire in the warp direction. The first wire unwinding roller is evenly distributed along the outer peripheral wall of the first turntable. The copper wire is released from the first wire unwinding roller and passes through the first guide post, the second guide post and the first guide wheel in sequence. The avoidance component dynamically adjusts its position according to the braiding requirements and drives the cylinder to push the avoidance strip to move up and down along the sliding groove, so that the copper wire passes through the first clearance hole of the avoidance strip, avoids the wire path of the second braiding mechanism, and reduces the possibility of the two sets of wires getting tangled.

[0056] The second wire unwinding roller is mainly responsible for the unwinding and braiding of the wire in the weft direction. The second wire unwinding roller is distributed circumferentially along the second turntable. The copper wire is released from the unwinding roller and passes through the third guide post, the fourth guide post, and the second guide wheel in sequence. The third guide post, the fourth guide post, and the second guide wheel work together to ensure that the copper wire is stably transported along the predetermined path and maintains a balanced tension. At the same time, the second clearance hole of the second guide assembly cooperates with the third guide post to dynamically adapt to the wire core path and ensure that the weft copper wire intersects with the warp copper wire without interference when it wraps around the wire core.

[0057] On the other hand, after the drive motor starts, it drives the first bevel gear to rotate through the first transmission shaft. The two ends of the first bevel gear mesh with the second bevel gear and the third bevel gear respectively, so that the second transmission shaft and the third transmission shaft rotate synchronously in opposite directions. Since the first turntable and the second transmission shaft, and the second turntable and the third transmission shaft are all fixed coaxially, the two first turntables and the second turntable rotate synchronously in opposite directions and are concentric, forming the mechanical foundation of warp and weft weaving.

[0058] The first turntable drives the warp copper wires to extend along the length of the wire core, while the second turntable drives the weft copper wires to vertically encircle the wire core. The two sets of copper wires interweave through the counter-rotation of the turntables, forming a tight shielding layer.

[0059] The woven wire harness is conveyed vertically upward from the hollow channel between the second and third drive shafts and directly into the take-up roller located above.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bidirectional warp and weft yarn bundle braiding device for braiding two sets of yarns together at the yarn core, characterized in that, The system includes a frame (1), a first weaving mechanism (2), a second weaving mechanism (3), and a transmission assembly (4). The first weaving mechanism (2), the second weaving mechanism (3), and the transmission assembly (4) are all fixed on the frame (1). The first weaving mechanism (2) includes a first turntable (21), the second weaving mechanism (3) includes a second turntable (31), and the transmission assembly (4) includes a transmission component (41), a first bevel gear (42), a second bevel gear (43), a third bevel gear (44), a first transmission shaft (45), a second transmission shaft (46), a third transmission shaft (47), and a drive motor (48). The transmission component (41) has a U-shaped structure. A first insertion hole (411) is provided in the middle of the transmission component (41). Second insertion holes (412) and third insertion holes (413) are provided on both sides of the transmission component (41). The first bevel gear (42) is coaxially fixed with the first transmission shaft (45). The first transmission shaft (45) passes through the first insertion hole (411) and is coaxially fixed with the drive motor (48). The first transmission shaft (45) rotatably bears the load of the first insertion hole (411). The second bevel gear (43) is coaxially fixed with the second transmission shaft (46). The second transmission shaft (46) rotatably bears the load of the second insertion hole (412). The third bevel gear (… 44) The third drive shaft (47) is fixed coaxially with the third drive shaft (47), the third drive shaft (47) is rotatably supported by the third insertion hole (413), the end of the third drive shaft (47) away from the third bevel gear (44) passes through the second insertion hole (412), the second drive shaft (46) is sleeved on the third drive shaft (47), the second bevel gear (43) is located above the third bevel gear (44), the two ends of the first bevel gear (42) are respectively meshed with the second bevel gear (43) and the third bevel gear (44), the first turntable (21) is fixed coaxially with the second drive shaft (46), and the second turntable (31) is fixed coaxially with the third drive shaft (47); The first braiding mechanism (2) further includes a plurality of first wire unwinding rollers (22) and a first carrier (23). The plurality of first wire unwinding rollers (22) are evenly distributed on the outer peripheral wall of the first turntable (21). The first carrier (23) is fixed on the outer peripheral wall of the first turntable (21). The first wire unwinding rollers (22) are rotatably supported on the first carrier (23). The first braiding mechanism (2) further includes a first guide assembly (24), which includes a first guide post (241), a second guide post (242), and a first guide wheel (243). The first guide post (241), the second guide post (242), and the first guide wheel (243) are all fixed on the first support member (23). The first guide post (241) and the second guide post (242) are distributed at both ends of the first wire unwinding roller (22). The wire is unwound along the first wire unwinding roller (22) and abuts against the first guide post (241), the second guide post (242), and the first guide wheel (243) in sequence. The first braiding mechanism (2) further includes a clearance component (25), which includes a drive cylinder (251) and a clearance strip (252). The clearance component (25) is provided in several groups, and the several groups of clearance components (25) correspond one-to-one with several first wire unwinding rollers (22). The piston rod of the drive cylinder (251) is vertically upward, and the piston rod of the drive cylinder (251) is fixedly connected to the clearance strip (252). The first turntable (21) is provided with a sliding groove (211), and the clearance strip (252) is slidably disposed in the sliding groove (211) in the vertical direction. The clearance strip (252) is provided with a first clearance hole (2521), and the wire passes through the first clearance hole (2521) to braid the wire core. The second braiding mechanism (3) includes a second wire unwinding roller (32) and a second support member (33). A plurality of second wire unwinding rollers (32) are provided, and the plurality of second wire unwinding rollers (32) are arranged circumferentially along the second turntable (31). A plurality of second support members (33) are provided, and the plurality of second support members (33) correspond one-to-one with the second wire unwinding rollers (32). The second support members (33) are fixedly connected to the second turntable (31), and the second wire unwinding rollers (32) are rotatably supported on the second support members (33). The second braiding mechanism (3) includes a second guide assembly (34), which includes a third guide post (341), a fourth guide post (342), and a second guide wheel (345). The third guide post (341), the second guide wheel (345), and the fourth guide post (342) are all fixed on the second bearing member (33). The fourth guide post (342) has a second clearance hole (3421). The wire is unwound along the second wire unwinding roller (32) and abuts against the inner wall of the third guide post (341), the second clearance hole (3421), and the second guide wheel (345) in sequence. It also includes a wire core unwinding roller (5), the second drive shaft (46) and the third drive shaft (47) are hollow, the wire core unwinding roller (5) is located below the first braiding mechanism (2) and the second braiding mechanism (3), the wire core unwinding roller (5) is rotatably supported on the frame (1), and the wire core passes through the inside of the second drive shaft (46) and the third drive shaft (47) from the wire core unwinding roller (5); It also includes a take-up roller (6), which is located above the first weaving mechanism (2) and the second weaving mechanism (3), and the take-up roller (6) is rotatably supported on the frame (1).

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