A stranding apparatus for wire and cable manufacturing and a method of using the same
By designing the turntable assembly and air box assembly, the problems of difficult replacement of the inner coil of the stranding equipment, easy scratching of high-speed guide, and easy distortion of winding have been solved. The design has achieved automated replacement, low-resistance guidance, and full-process gas protection, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG QINSHAN CABLE
- Filing Date
- 2026-05-06
- Publication Date
- 2026-06-12
AI Technical Summary
Existing stranding equipment suffers from problems such as difficulty in replacing the inner coil, easy scratches during high-speed guidance, and easy cross-sectional distortion during winding.
The system employs a precision linkage mechanism consisting of a weight detector in a turntable assembly, radially movable central and side moving blocks, a control motor-driven meshing sliding block, and clamping claws. Combined with the ball groove structure of the guide component and the airflow handling system of the air box assembly, it achieves automated coil replacement, low-resistance guidance, and full-process gas dynamics control.
It enables automated reel replacement without downtime, scratch-free protection of copper wire surfaces, and prevention of cross-sectional distortion during the winding process, thereby improving equipment operating efficiency and product quality.
Smart Images
Figure CN122201943A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wire and cable manufacturing technology, specifically to a stranding device for wire and cable manufacturing and its usage method. Background Technology
[0002] In the wire and cable manufacturing industry, the stranding process is the core and fundamental technological step in forming the conductive core. The conductor of a wire or cable is typically not composed of a single solid metal rod, but rather of multiple thin metal filaments stranded together. This design aims to balance electrical and mechanical properties: the stranded structure gives the conductor excellent flexibility and bending life, facilitating installation; simultaneously, the total surface area of multiple filaments is greater than that of a single conductor with the same cross-sectional area, which is beneficial for high-frequency current transmission and improves the conductor's tensile strength and fatigue durability. Stranding equipment, also known as a stranding machine, is used to strand multiple filaments (such as copper or aluminum wires) according to a predetermined pattern. This is a specialized equipment for tightly and evenly spirally twisting multiple monofilaments into a regular conductor. Its basic technological principle is to make multiple monofilaments spirally rotate and wind around a central axis. Depending on the different ways of achieving the twisting motion, the mainstream equipment mainly includes cage-type stranding machines, tubular stranding machines, and frame-type stranding machines. Cage-type stranding machines have the pay-off reel concentrated in a rotatable cage (spindle), and the pay-off and twisting of monofilaments are achieved through the revolution of the cage. Tubular stranding machines allow monofilaments to pass through a high-speed rotating tubular rotor to form a strand. Frame-type stranding machines usually have the pay-off reel stationary, and the monofilaments are guided to complete the twisting action by a rotating bow-shaped frame or wire divider.
[0003] Existing technologies still have some inconveniences in use. First, in the wire feeding stage, the arrangement of multi-station wire reels is usually a fixed, dense arrangement. When the inner wire reels are exhausted, the replacement operation becomes a serious bottleneck. The outer wire reels form a physical obstruction, forcing the equipment to be completely stopped, and manual intervention is required for tedious disassembly, replacement, and threading operations. This process not only causes significant production interruptions and low equipment utilization, but more seriously, after each shutdown and restart, the tension state of each filament is difficult to restore to its original equilibrium, resulting in product quality fluctuations for a period of time after restarting and generating additional waste. Second, in the conductor guiding and stranding stage, the traditional guide rollers or eye molds mainly rely on sliding friction with the high-speed copper wires. This friction mechanism inevitably... This causes microscopic scratches on the copper wire surface and scrapes off metal debris. This debris may accumulate in the guide wheel grooves, further worsening the friction and creating a vicious cycle. Ultimately, this damages the smoothness and consistency of the conductor surface, posing a potential risk to the adhesion of subsequent processes such as tin plating or insulation. Furthermore, during the winding stage, when the formed stranded cable is pulled to the take-up reel, it collides rigidly with the reel surface or the underlying cable at a high speed. This impact force, combined with the continuous radial compression from the winding tension, can easily cause noticeable elliptical deformation of the circular cross-section of the stranded cable. This deformation not only affects the appearance and neatness of the coil but also subtly alters its electrical characteristics (such as impedance) and may create residual stress concentration points inside the cable, affecting long-term reliability. Summary of the Invention
[0004] The purpose of this invention is to provide a stranding device and its usage method for manufacturing wires and cables, so as to solve the technical problems of difficulty in replacing the inner coil of existing stranding devices, easy scratches caused by high-speed guidance, and easy cross-sectional distortion during winding.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a stranding device for manufacturing electric wires and cables and a method for using the same, comprising: A base plate has a driving platform on its upper surface, a winding disc on its upper surface, a rotating base on its upper surface, and a braiding mechanism on its upper surface. The braiding mechanism includes a turntable assembly and an air box assembly. The turntable assembly includes a drive motor located on the upper surface of the base plate. A force-bearing turntable is located on the upper surface of the rotating base. One side of the force-bearing turntable is connected to the output shaft of the drive motor. A mounting plate is located on one side of the force-bearing turntable. A connecting sliding seat and a fixing connecting strip are provided between the force-bearing turntable and the mounting plate. A control motor is located on one side of the connecting sliding seat. An engaging sliding block is located on the output shaft of the control motor. A bottom upright is located on the bottom surface of the engaging sliding block. Three clamping claws are located on one side of the bottom upright. Three central movable blocks are located at the center of the mounting plate. The air box assembly includes: a top fan, with connecting side frames on both sides of the top fan, the connecting side frames being fixedly installed on the upper surface of the foundation plate, two air ring pipes on the bottom surface of the top fan, and two fixed supports on the upper surface of the foundation plate, each of the two fixed supports having a drive box on its upper surface, and two guide rollers between the two drive boxes.
[0006] Furthermore, a rear connecting hook is provided on the side surface of the central movable block that is close to the force-bearing turntable. Two side movable blocks are provided on both sides of the center of the mounting plate. Two dual-axis motors are provided on the side surface of the mounting plate that is close to the force-bearing turntable. A connecting support plate is provided at the end of the output shaft of each of the two dual-axis motors. One side surface of the connecting support plate is connected to the side movable block. Clamping components are provided on one side surface of each central movable block, side movable block, and mounting plate.
[0007] Furthermore, the clamping component includes a lower fixed support rod and a small telescopic rod. Both the lower fixed support rod and the small telescopic rod are connected to the side surface of their corresponding central movable block or side movable block. An upper fixed support rod is provided at the end of the output shaft of the small telescopic rod, and a weight detector is provided at the end of the lower fixed support rod. A copper wire tray is provided between the upper fixed support rod and the lower fixed support rod. Copper wire is wound on the surface of the copper wire tray, and multiple copper wires are wound together to form a braided wire. The surface of the mounting plate is also provided with multiple mounting slots. A telescopic motor is provided inside each mounting slot. A fixed plug is provided at the end of the output shaft of the telescopic motor, and a socket that mates with the fixed plug is provided on the side surface of the central movable block.
[0008] Furthermore, the turntable assembly also includes a guide component, which includes a guide plate body disposed above the rotating base. The guide plate body is also connected to the mounting plate body by two fixed connecting strips. A central plate body is disposed at the center of the guide plate body. Multiple guide base blocks are disposed on the side surface of the central plate body. A wire hole is provided at the center of both the guide base blocks and the central plate body. Three ball grooves are provided inside the wire hole, and metal balls are disposed inside the ball grooves.
[0009] Furthermore, a storage liquid box is provided on the upper surface of the guide block, and an inner storage box is provided inside the storage liquid box. The inner storage box stores a volatile solvent carrier type lubricant. Multiple capillary oil cores are provided at the opening on the upper surface of the inner storage box. An injection hole is provided on the side surface of the inner storage box, and a circular hole is opened on the side surface of the storage liquid box to expose the injection hole. A lower liquid groove is also provided on the inner bottom surface of the storage liquid box, and the lower liquid groove is connected to the ball groove.
[0010] Furthermore, the side surface of the guide roller is provided with a through groove, the two guide rollers are arranged vertically, and the center surface of the guide roller is provided with multiple air outlet holes. The braided wire passes through the two guide rollers. The bottom surface of the top fan is provided with two air ring pipes that cooperate with the guide rollers. The two air ring pipes are respectively located on the two side surfaces of the guide rollers. The upper surface of the foundation plate is also provided with a small support frame. The upper surface of the small support frame is provided with a fixed outer ring frame. The center of the fixed outer ring frame is provided with an inner movable box. The side surface of the inner movable box is provided with multiple connecting springs. The other end of the connecting springs is connected to the inner side surface of the fixed outer ring frame.
[0011] Furthermore, a central conduit is provided at the center of the inner movable box, and multiple connecting side blocks are provided on the side surface of the central conduit. The connecting side blocks are connected to the inner side surface of the inner movable box. A ventilation duct is also provided inside the inner movable box. An air supply hose is provided on one side surface of the inner movable box. The air supply hose is connected to one side surface of the top fan. A conduit duct is provided on one side surface of the inner movable box, and an air outlet slot communicating with the ventilation duct is opened on one side surface of the conduit duct.
[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. In this solution, a turntable assembly is provided, which integrates the clamping components of the weight detector, the radially movable central moving block and the side moving block, and the precision linkage mechanism consisting of the meshing sliding block and the clamping claw driven by the control motor. When the weight detector predicts that the copper wire reel at a specific station is about to run out, the unlocking and removal procedure of that station can be initiated. The fixed plug is retracted by the telescopic motor, the locking of the central moving block is released, and the entire bearing unit is smoothly pulled out to the maintenance area under the drive of the control motor by the combination of the clamping claw and the rear connecting hook. For the side station, the side moving block is radially moved by the dual-axis motor, so that the inner wire reel that is blocked by the outer station can be replaced without obstruction. This fundamentally solves the inherent industry problem of the extremely cumbersome replacement of the inner reel in multi-layer, densely arranged wire reel groups. 2. In this solution, by setting up a guiding component and designing the inner wall of the wire hole as a ball groove structure with multiple freely rotating metal balls, and coupling it with a centrifugal force driven self-lubricating system composed of a storage liquid box, capillary oil core and lower liquid tank, the contact mechanics mode between the copper wire and the guiding element is changed from high-wear sliding friction to ultra-low resistance multi-point rolling contact. At the same time, the special lubricant stored in the internal storage box is continuously, in minute and precisely delivered to the working surface of the ball groove by means of the synergy of rotational centrifugal force and capillary action when the equipment is running, forming an ultra-thin lubricating film with cooling effect. From a physical principle, this significantly reduces the coefficient of friction and traction force requirements, and more effectively avoids micro-scratches and metal debris accumulation on the surface of the copper wire caused by sliding scraping. 3. In this solution, an efficient multi-stage airflow treatment system is constructed by setting up an air box assembly, combining a top fan with an air ring duct, a guide roller with an internal air duct, and a flexibly suspended inner movable box and wire threading duct. This system achieves full-process gas dynamic control of the wire from forming and cooling to winding and protection. First, the airflow seeps out evenly from the circumferential air outlet of the guide roller, forming a three-dimensional cooling air curtain that wraps around the wire. This forced convection cooling and stress homogenization treatment is applied to the wire that still has residual heat after stranding. This contact cooling greatly improves the forming efficiency. Then, some of the airflow is guided to the winding end. Through the inner movable box, which is multi-directionally adaptive by connecting springs, a high-energy laminar flow air curtain that can dynamically track the position of the wire is ejected from the air outlet slot of the wire threading duct. At the critical moment when the wire is attached to the winding reel, the gas dynamic pressure effectively buffers and disperses the collision impact force and radial extrusion stress between the wire and the reel, and resolves the conductor cross-section distortion caused by hard collision and interlayer pressure during the winding process. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the guiding component structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the storage liquid box of the present invention; Figure 4 This is a schematic diagram of the turntable assembly structure of the present invention; Figure 5 This is a rear view schematic diagram of the turntable assembly of the present invention; Figure 6 This is a schematic diagram of the guide roller structure of the present invention; Figure 7 This is a schematic diagram of the wind box assembly structure of the present invention; Figure 8 This is a schematic diagram of the internal structure of the inner movable box of the present invention.
[0014] In the diagram: 1. Foundation plate; 2. Rotating base; 3. Drive motor; 4. Force-bearing turntable; 5. Mounting plate; 6. Guide plate; 7. Top fan; 8. Fixed bracket; 9. Braided wire; 10. Drive base; 11. Winding plate; 12. Guide block; 13. Storage tank; 14. Injection hole; 15. Central plate; 16. Internal storage box; 17. Capillary oil core; 18. Lower liquid tank; 19. Wire hole; 20. Metal ball bearing; 21. Central movable block; 22. Side movable block; 23. Telescopic motor; 24. Fixed insert; 25. Small telescopic rod; 26. Upper fixed support rod; 27. Weight detector; 8. Lower fixed support rod; 29. Installation slot; 30. Copper wire reel; 31. Connecting sliding seat; 32. Control motor; 33. Engaging sliding block; 34. Bottom upright; 35. Clamping claw; 36. Fixed connecting strip; 37. Dual-axis motor; 38. Connecting support plate; 39. Rear connecting hook; 40. Drive box; 41. Guide roller; 42. Air outlet opening; 43. Connecting side frame; 44. Air ring duct; 45. Small support frame; 46. Fixed outer ring frame; 47. Air supply hose; 48. Wiring duct; 49. Air outlet slot; 50. Inner movable box; 51. Connecting spring; 52. Central wiring tube; 53. Connecting side block. Detailed Implementation
[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0016] Example 1: Please refer to Figures 1 to 8 A stranding device for manufacturing electric wires and cables and its method of use, comprising: The base plate 1 serves as the overall load-bearing and installation platform. A drive base 10 is mounted on the upper surface of the base plate 1, and a winding reel 11 is mounted on the upper surface of the drive base 10 to complete the winding of the final product. A rotating base 2 is also mounted on the upper surface of the base plate 1, providing stable support for the rotating components. A braiding mechanism is mounted on the upper surface of the base plate 1. The core twisting function of the equipment is realized by the braiding mechanism, which includes a turntable assembly and an air box assembly. The turntable assembly constitutes the core of the twisting drive and wire supply. The turntable assembly includes a drive motor 3, which is mounted on the upper surface of the base plate 1. The rotating base 2... The upper surface of the device is provided with a force-bearing turntable 4. One side surface of the force-bearing turntable 4 is connected to the output shaft of the drive motor 3. One side surface of the force-bearing turntable 4 is provided with a mounting plate 5. A connecting sliding seat 31 and a fixed connecting strip 36 are provided between the force-bearing turntable 4 and the mounting plate 5. One side surface of the connecting sliding seat 31 is provided with a control motor 32. The output shaft of the control motor 32 is provided with a meshing sliding block 33. The bottom surface of the meshing sliding block 33 is provided with a bottom upright 34. One side surface of the bottom upright 34 is provided with three gripping claws 35, forming a gripping and moving mechanism. Three central movable blocks 21 are provided at the center of the mounting plate 5. A rear connecting hook 39 is provided on the side surface of the mounting plate 5 adjacent to the force-bearing turntable 4. Two side movable blocks 22 are provided on both sides of the center of the mounting plate 5. Two dual-axis motors 37 are provided on the side surface of the mounting plate 5 adjacent to the force-bearing turntable 4. A connecting support plate 38 is provided at the end of the output shaft of each dual-axis motor 37. One side surface of the connecting support plate 38 is connected to the side movable block 22. A clamping component with the same structure is installed on one side surface of each central movable block 21, one side surface of the side movable block 22, and one side surface of the mounting plate 5. The clamping component includes a lower fixed support rod 28 and a small telescopic rod 25. The output shaft end of the small telescopic rod 25 is provided with... There is an upper fixed support rod 26, and a weight detector 27 is provided at the end of the lower fixed support rod 28. The copper wire tray 30 is located between the upper fixed support rod 26 and the lower fixed support rod 28 and is clamped and fixed by the two. The copper wire on its surface will be led out. The surface of the copper wire tray 30 is wrapped with copper wire. Multiple copper wires eventually converge and twist together to form the required braided wire 9. The surface of the mounting tray 5 is also provided with multiple mounting slots 29. Each mounting slot 29 is provided with a telescopic motor 23. The output shaft of the telescopic motor 23 is provided with a fixed plug 24 at its end. The side surface of the central movable block 21 is provided with a socket that cooperates with the fixed plug 24. When the equipment is running, the drive motor 3 receives a command and starts, driving the force-bearing turntable 4 to rotate via the output shaft. This, in turn, drives the mounting plate 5 to rotate synchronously at high speed via the connecting sliding seat 31 and the fixed connecting strip 36. Multiple sets of clamping components distributed circumferentially on the mounting plate 5, through the coordinated clamping of the upper fixed support rod 26 and the lower fixed support rod 28, reliably fix multiple copper wire reels 30. The weight detector 27 at the end of the lower fixed support rod 28 of each clamping component continuously weighs the corresponding wire reel online, realizing accurate prediction of the remaining wire length and reel replacement warning. When the system determines that a wire reel is about to run out of wire, it executes a differentiated replacement strategy based on its location. For the wire reel located on the outermost side without obstruction, it can be directly replaced by the robot arm. For the core station wire reel located in the central area and obstructed by the outer station, a precise built-in replacement program is initiated: First, the telescopic motor 23 in the corresponding mounting slot 29 is controlled to retract, driving the fixed plug 24 to exit from the socket of the central movable block 21, releasing the mechanical lock. At the same time, the corresponding wire reel is replaced by the robot arm. The clamping claw 35 corresponding to the workstation closes and locks onto the rear connecting hook 39 of the central movable block 21. Subsequently, the control motor 32 starts, driving the meshing sliding block 33 and the bottom upright 34 to move horizontally, thereby radially pulling out the central movable block 21 carrying the coil to be replaced to the maintenance area between the mounting plate 5 and the force-bearing turntable 4. In this unobstructed space, the old coil replacement and new coil loading are completed. For the side movable block 22 workstation located in the middle layer, its replacement is achieved by driving two dual-axis motors 37. The two motors synchronously drive the connecting support plate 38 and the side movable block 22 fixed to it to move in opposite radial directions, thereby opening the operation window and fully exposing the obscured coil, which is convenient for direct replacement operation. The entire coil replacement process is completed while the equipment is continuously rotating and the main stranding action is uninterrupted. It realizes one-click automated operation from prediction, unlocking, removal, replacement to reset, completely solving the industry pain point that traditional equipment must be stopped and manually intervened to replace the inner coil, and improving the continuous operation efficiency and automation level of the equipment.
[0017] The turntable assembly also includes a guiding component. The core function of the guiding component is to provide high-precision guidance, sorting, and protection for the multiple independent copper wires drawn from each copper wire reel 30 before they converge. The guiding component includes: a guiding disc body 6, which is positioned above the rotating base 2. The guiding disc body 6 is rigidly connected to the rotating mounting disc body 5 via two fixed connecting strips 36 to ensure synchronous rotation with the wire feeding station. A central disc body 15 is located at the center of the guiding disc body 6. Multiple guiding base blocks 12 are provided on the side surface of the central disc body 15. Wire-passing holes 19 are provided at the center of both the guiding base blocks 12 and the central disc body 15. The inner wall of the wire-passing hole 19 is designed with three equally spaced circumferentially distributed ball grooves. Metal balls 20 are installed inside the ball grooves, allowing the wires passing through the hole to pass through. The contact between the copper wire and the hole wall is changed from the traditional surface contact sliding friction to the point contact rolling friction with the three metal balls 20. A storage liquid box 13 is provided on the upper surface of the guide block 12. An inner storage box 16 is provided inside the storage liquid box 13. The inner storage box 16 stores volatile solvent carrier type lubricant. Multiple capillary oil cores 17 are provided at the opening on the upper surface of the inner storage box 16. These capillary oil cores 17 continuously absorb lubricant from the storage area through capillary siphon. A liquid injection hole 14 is provided on the side surface of the inner storage box 16. A circular hole is opened on the side surface of the storage liquid box 13 to expose the liquid injection hole 14 for easy replenishment of lubricant. A lower liquid groove 18 is also provided on the inner bottom surface of the storage liquid box 13. The lower liquid groove 18 is connected to the ball groove. Multiple independent copper wires drawn from each copper wire reel 30 are precisely guided to the rotating guide disc 6 and pass through corresponding wire-passing holes 19. Because the inner wall of the guide disc is not a traditional smooth through-hole, but rather has multiple precision ball grooves with built-in high-hardness metal balls 20 that can rotate freely, the contact between the copper wire and the guide surface changes from traditional surface sliding friction to low-resistance multi-point rolling contact, reducing the coefficient of friction and the risk of surface scratches. Simultaneously, the dedicated volatile solvent-carrier lubricant stored in the storage liquid box 13 above the guide base block 12 continuously and slowly rises along multiple capillary oil cores 17 under capillary action. When the rotating guide disc 6 rotates, the centrifugal force generated acts on the lubricant, causing it to be efficiently ejected from the end of the oil core. Through the guide of the lower liquid tank 18, it precisely wets and covers the working area of the ball groove below, realizing a micro-volume, continuous, and adaptive lubricant supply driven by the centrifugal force of rotation. An extremely thin lubricating film is formed on the surface of the metal ball 20, further reducing rolling resistance. The volatility of the lubricant carries away the micro-heat generated by friction, achieving synchronous lubrication and cooling of the ball and copper wire. This solves the problems of easy scratching, easy chip accumulation, and easy wear of the guide wheel in high-speed stranding, laying the foundation for producing high-quality products with a smooth surface.
[0018] The air box assembly constitutes a complete airflow handling system designed to cool, shape, and protect the twisted cable. The air box assembly includes: a top fan 7, which is securely mounted on the upper surface of the base plate 1 via connecting side brackets 43 on both sides; two air ring pipes 44 are provided on the bottom surface of the top fan 7; two fixed supports 8 are also provided on the upper surface of the base plate 1, each with a drive box 40 on its upper surface; two guide rollers 41 are positioned between the two drive boxes 40; elongated slots are provided on the sides of the guide rollers 41; the two guide rollers 41 are arranged vertically; multiple air outlet holes 42 are provided on the center surface of each guide roller 41; braided wires 9 pass through the space between the two guide rollers 41; and two air ring pipes 44, which cooperate with the guide rollers 41, are located on the bottom surface of the top fan 7. On both sides of 41, a small support frame 45 is provided on the upper surface of the foundation plate 1. A fixed outer ring frame 46 is provided on the upper surface of the small support frame 45. An inner movable box 50 is provided at the center of the fixed outer ring frame 46. Multiple connecting springs 51 are provided on the side surface of the inner movable box 50. The other end of the connecting springs 51 is connected to the inner side surface of the fixed outer ring frame 46. A central conduit 52 is provided at the center of the inner movable box 50. Multiple connecting side blocks 53 are provided on the side surface of the central conduit 52. The connecting side blocks 53 are connected to the inner side surface of the inner movable box 50. A ventilation duct is also provided inside the inner movable box 50. An air supply hose 47 is provided on one side surface of the inner movable box 50. The air supply hose 47 is connected to one side surface of the top fan 7. A wire duct 48 is provided on one side surface of the inner movable box 50. An air outlet slot 49 communicating with the ventilation duct is opened on one side surface of the wire duct 48. The top fan 7, as the core air source, provides stable airflow for subsequent multi-stage processing. Its primary function is to continuously deliver clean airflow to the area of the high-speed rotating guide disc 6, blowing away any trace metal debris that may be generated by the friction between the metal balls 20 and the copper wire, maintaining the cleanliness of the working area. The braided wire 9, initially formed by twisting, first enters the shaping zone composed of two guide rollers 41. The airflow generated by the top fan 7 is delivered through the air ring duct 44, introduced into the inner cavity of the roller from the side, and forms a uniform, enveloping three-dimensional cooling air curtain through the circumferentially distributed air outlet openings 42. This process provides the first forced convection cooling and stress relaxation for the cable core, which is still in a residual temperature state, allowing its twisted structure to quickly shape and improving dimensional stability. Subsequently, the cable core passes through the flexible shaping module located at the winding end. This module consists of an inner movable box 50 flexibly suspended within a fixed outer ring frame 46 by multiple connecting springs 51, possessing multi-degree-of-freedom adaptive fine-tuning capabilities. Part of the airflow from the top fan 7 is introduced into the ventilation duct of the inner movable box 50 through the air delivery hose 47. Finally, the air is ejected from the narrow air outlet slot 49 on the side of the cable duct 48, forming a high-intensity, highly directional laminar air curtain. As the cable core passes through the central cable duct 52 and is about to adhere to the surface of the high-speed rotating winding reel 11, the inner movable box 50, under the action of the connecting spring 51, can actively adjust itself in real time to adapt to the dynamic position and posture of the cable core, ensuring that the air curtain always acts precisely and perpendicularly on the contact front between the cable core and the reel surface. This dynamic air curtain forms an effective non-contact air cushion buffer interface at the contact point, absorbing… The air curtain effectively mitigates the impact energy between the cable core and the winding reel surface. Simultaneously, the circumferential wrapping effect of the air curtain provides uniform radial flexible support for the cable core, effectively resisting radial compression deformation caused by winding tension and interlayer pressure. This ensures that the geometric accuracy of the circular cross-section of the cable core is well maintained at the most critical winding moment. Ultimately, the cable core is tightly and neatly wound onto the winding reel 11 in an ideal state of low stress and no deformation, achieving high-quality manufacturing throughout the entire process from stranding, cooling, shaping to winding protection.
[0019] The working principle of this invention is: When this equipment is in operation, the operator first starts the drive motor 3, whose output shaft directly drives the force-bearing turntable 4 to rotate. Through the connecting sliding seat 31 and the fixed connecting strip 36, the mounting plate 5 connected to the force-bearing turntable 4 rotates synchronously at high speed. Multiple clamping components distributed around the circumference of the mounting plate 5, with their respective upper fixed support rods 26 and lower fixed support rods 28 working together, firmly clamp multiple copper wire reels 30. The weight detector 27 at the end of the lower fixed support rod 28 monitors the weight of the wire reels in real time, achieving accurate margin warning. When the system determines that a certain wire reel on the inner side needs to be replaced, the automation program can be started: the corresponding telescopic motor 23 retracts the fixed insert block 24 to unlock the central movable block 21, and at the same time controls the motor 32 to drive the meshing sliding block 33 and the clamping claw 35 to move. The central movable block 21 is radially pulled out to the maintenance area for replacement through the rear connecting hook 39. The entire process does not require the main machine to be stopped, which improves production efficiency. Multiple independent copper wires drawn from each copper wire spool 30 converge to the synchronously rotating guide spool 6. The copper wires pass through the wire-passing holes 19 on the guide base block 12 and the central spool 15. The holes innovatively have multiple ball grooves embedded with freely rotating metal balls 20 on their inner walls, which changes the contact between the copper wire and the hole wall from sliding friction to low-resistance multi-point rolling friction, effectively protecting the surface of the copper wire. At the same time, the special lubricant in the storage liquid box 13 is continuously and in small amounts delivered to the ball groove area through the capillary oil core 17 under the drive of capillary action and rotational centrifugal force, to lubricate and cool the metal balls 20, further reducing friction and thermal damage, and laying the foundation for stranding high-quality wires. The braided wire 9, initially twisted together, then enters the air box assembly processing area. The top fan 7 serves as the core air source, with part of its airflow used to purge the area of the guide disc 6 to keep it clean. The main airflow is introduced into the interior of the two guide rollers 41 through the air ring pipe 44 and blown out evenly from their circumferential air outlets 42, forming a cooling air curtain that wraps around the wire, performing initial cooling and stress setting on the wire. Subsequently, the wire passes through the central threading pipe 52 in the center of the inner movable box 50, which is flexibly suspended by the connecting spring 51. Another part of the airflow from the top fan 7 passes through the air delivery hose 47 and the ventilation duct of the inner movable box 50, and finally ejects a highly directional air curtain from the air outlet slot 49 of the threading air pipe 48. With the adaptive fine-tuning of the inner movable box 50, this air curtain acts precisely at the moment when the wire is about to adhere to the winding disc 11, forming a non-contact air cushion, effectively buffering the collision and providing radial flexible support, ensuring that the circular cross-section of the wire is not squeezed or deformed during the winding process, and finally tightly and neatly wound onto the winding disc 11.
[0020] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A stranding device for manufacturing electric wires and cables, characterized in that, include: A base plate has a driving platform on its upper surface, a winding disc on its upper surface, a rotating base on its upper surface, and a braiding mechanism on its upper surface. The braiding mechanism includes a turntable assembly and an air box assembly. The turntable assembly includes a drive motor located on the upper surface of the base plate. A force-bearing turntable is located on the upper surface of the rotating base. One side of the force-bearing turntable is connected to the output shaft of the drive motor. A mounting plate is located on one side of the force-bearing turntable. A connecting sliding seat and a fixing connecting strip are provided between the force-bearing turntable and the mounting plate. A control motor is located on one side of the connecting sliding seat. An engaging sliding block is located on the output shaft of the control motor. A bottom upright is located on the bottom surface of the engaging sliding block. Three clamping claws are located on one side of the bottom upright. Three central movable blocks are located at the center of the mounting plate. The air box assembly includes: a top fan, with connecting side frames on both sides of the top fan, the connecting side frames being fixedly installed on the upper surface of the foundation plate, two air ring pipes on the bottom surface of the top fan, and two fixed supports on the upper surface of the foundation plate, each of the two fixed supports having a drive box on its upper surface, and two guide rollers between the two drive boxes.
2. The stranding equipment for manufacturing wires and cables according to claim 1, characterized in that: A rear connecting hook is provided on the side surface of the central movable block that is close to the force-bearing turntable. Two side movable blocks are provided on both sides of the center of the mounting plate. Two dual-axis motors are provided on the side surface of the mounting plate that is close to the force-bearing turntable. A connecting support plate is provided at the end of the output shaft of each of the two dual-axis motors. One side surface of the connecting support plate is connected to the side movable block. A clamping component is provided on one side surface of each central movable block, side movable block, and mounting plate.
3. The stranding equipment for manufacturing wires and cables according to claim 2, characterized in that: The clamping component includes a lower fixed support rod and a small telescopic rod. Both the lower fixed support rod and the small telescopic rod are connected to the side surface of their corresponding central movable block or side movable block. An upper fixed support rod is provided at the end of the output shaft of the small telescopic rod. A weight detector is provided at the end of the lower fixed support rod. A copper wire tray is provided between the upper fixed support rod and the lower fixed support rod. Copper wire is wound on the surface of the copper wire tray. Multiple copper wires are wound together to form a braided wire. The surface of the mounting plate is also provided with multiple mounting slots. A telescopic motor is provided inside each mounting slot. A fixed plug is provided at the end of the output shaft of the telescopic motor. The side surface of the central movable block is provided with a socket that mates with the fixed plug.
4. The stranding equipment for manufacturing wires and cables according to claim 1, characterized in that: The turntable assembly also includes a guide component, which includes a guide plate body disposed above the rotating base. The guide plate body is connected to the mounting plate body by two fixed connecting strips. A central plate body is disposed at the center of the guide plate body. Multiple guide base blocks are disposed on the side surface of the central plate body. A wire hole is provided at the center of both the guide base blocks and the central plate body. Three ball grooves are provided inside the wire hole. Metal balls are disposed inside the ball grooves.
5. A stranding device for manufacturing wires and cables according to claim 4, characterized in that: The upper surface of the guide block is provided with a storage liquid box, and the inside of the storage liquid box is provided with an inner storage box. The inner storage box stores a volatile solvent carrier type lubricant. Multiple capillary oil cores are provided at the opening on the upper surface of the inner storage box. The side surface of the inner storage box is provided with a liquid injection hole. The side surface of the storage liquid box has a circular hole for exposing the liquid injection hole. The bottom surface of the inner surface of the storage liquid box is also provided with a lower liquid groove, which is connected to the ball groove.
6. The stranding equipment for manufacturing wires and cables according to claim 3, characterized in that: The guide rollers have through grooves on their side surfaces. The two guide rollers are arranged vertically. The center surface of each guide roller has multiple air outlet holes. The braided wire passes between the two guide rollers. The bottom surface of the top fan has two air ring pipes that cooperate with the guide rollers. The two air ring pipes are located on the two side surfaces of the guide rollers respectively. The upper surface of the foundation plate is also provided with a small support frame. The upper surface of the small support frame is provided with a fixed outer ring frame. The center of the fixed outer ring frame is provided with an inner movable box. The side surface of the inner movable box is provided with multiple connecting springs. The other end of each connecting spring is connected to the inner side surface of the fixed outer ring frame.
7. A stranding device for manufacturing wires and cables according to claim 6, characterized in that: A central conduit is provided at the center of the inner movable box. Multiple connecting side blocks are provided on the side surface of the central conduit, and the connecting side blocks are connected to the inner side surface of the inner movable box. A ventilation duct is also provided inside the inner movable box. An air supply hose is provided on one side surface of the inner movable box, and the air supply hose is connected to one side surface of the top fan. A conduit duct is provided on one side surface of the inner movable box, and an air outlet slot communicating with the ventilation duct is opened on one side surface of the conduit duct.
8. A method of using a stranding device for manufacturing wires and cables, used in any one of claims 1-7, characterized in that, Includes the following steps: S1: Start the drive motor to drive the force-bearing turntable and the mounting plate to rotate synchronously, fix each copper wire spool by the clamping component, and use the weight detector to monitor the wire spool balance in real time. S2: When the weight detector predicts that the inner station reel is about to run out, it triggers the automatic replacement program: controls the corresponding telescopic motor to retract the fixed plug and unlock the central movable block, and controls the clamping claw to lock the hook. It then drives the central movable block to move radially out of the maintenance area to replace the reel. For the side station, the side movable block is driven to move radially out of the maintenance area by the dual-axis motor to replace the reel. S3: The copper wires drawn from each copper wire tray pass through the corresponding wire holes on the guide plate body and are guided by rolling using the metal balls set in the holes. At the same time, the lubricant in the storage liquid box is transported to the ball groove through the capillary oil core by centrifugal force for lubrication and cooling. S4: The braided wire formed by the initial twisting passes between two guide rollers. The airflow generated by the top fan is introduced into the inside of the guide rollers through the air ring pipe and blown out from the air outlet to cool and initially shape the braided wire. S5: The shaped braided wire passes through the central conduit in the inner movable box that is flexibly suspended by connecting springs. Part of the airflow from the top fan is ejected through the air supply hose and the air outlet slot of the conduit, forming an air cushion buffer and radial support before the braided wire contacts the winding reel. S6: Under the protection of the air curtain, the braided wire is tightly and neatly wound onto the winding spool to complete the winding.