Wire core conductor wire drawing machine for insulated cable production

Abstract

The invention relates to a wire core conductor wire drawing machine for insulated cable production, which comprises a die seat arranged on the wire drawing machine, a wire drawing die for processing a conductor copper wire is arranged on the die seat, and a guide structure for guiding the copper wire to enter and exit from the wire drawing die is arranged on the die seat. According to the wire core conductor wire drawing machine for insulated cable production, through the design that the wire inlet wheel and the guide wheel are matched with the diameter ratio of an inlet and an outlet of a wire drawing hole, linear speed matching is fundamentally guaranteed, the coaxial reference of a copper wire and the wire drawing hole is locked, synchronous reverse movement of traction assemblies on the two sides is achieved in cooperation with a synchronous adjusting assembly, and coaxial coincidence is always maintained in the adjusting process; the tension of the copper wire is dynamically and adaptively adjusted through the double-end tension closed-loop compensation mechanism, the tension fluctuation is inhibited, the tension adjustment is prevented from interfering with a reference path and blocking the vicious circle of tension and deviation by virtue of the decoupling layout of the front and rear tension wheels, and the V-shaped aluminum oxide ceramic wire supporting block is matched to assist in automatic centering of the incoming wire, wear resistance and deviation prevention; and copper wire surface processing defects are thoroughly eliminated.

Description

Technical Field

[0001] This invention relates to the field of insulated cable production technology, specifically to a wire drawing machine for insulated cable production. Background Technology

[0002] The production of insulated cables includes steps such as conductor processing, insulation extrusion, cabling, sheath extrusion, and finished product testing. The conductor processing step includes conductor drawing, annealing, and stranding processes. A drawing machine processes a large-diameter copper rod into a fine monofilament conductor. During the drawing process, a drawing emulsion is sprayed to cool down the conductor, prevent oxidation, and ensure a smooth surface on the monofilament. The fine monofilament conductor is then fed into an annealing furnace to restore its flexibility and conductivity, resulting in annealed soft monofilaments. After the annealed soft monofilaments are rapidly cooled, a stranding device is used to strand multiple annealed soft monofilaments into a round cable conductor at a specified pitch. In the current technology, a wire drawing machine is used to force a copper or aluminum rod with a large diameter through a wire drawing die with a smaller aperture. After the metal rod enters the wire drawing die, it is subjected to radial extrusion force from the inner wall of the die hole. When the traction force is greater than the deformation resistance of the metal and the friction between the die, the metal undergoes plastic deformation and is squeezed out from the small end of the die hole, with a smaller diameter and axial elongation. In practical use, the copper wire passes through the feed wheel, the guide nozzle, and the drawing hole of the drawing die. The friction between the guide nozzle and the copper wire causes wear on the inner wall of the guide nozzle, making the center line of the copper wire misaligned with the center line of the drawing die hole. This results in one-sided contact friction between the copper wire and the drawing hole, leading to excessive or concentrated local stress. Defects such as longitudinal scratches, tearing, and peeling appear on the surface of the copper wire. If the local extrusion pressure is too high, it can also cause the lubricating film on the surface of the copper wire to rupture, causing the copper wire to stick to the die and further aggravating surface damage. Uneven extrusion pressure can cause tension fluctuations in the copper wire, causing the copper wire to slip or deviate on the traction wheel, further exacerbating the non-perpendicular state between the copper wire and the die, forming a vicious cycle. If the localized extrusion pressure is concentrated, it can cause uneven deformation of the internal grains of the copper wire, generating residual internal stress, which leads to fluctuations in the tensile strength, elongation, and other mechanical properties of the copper wire. Therefore, a wire core conductor drawing machine for insulated cable production is proposed to solve the above problems. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a conductor drawing machine for insulated cable production. It features alignment of the copper wire and the drawing hole, solving the problems caused by friction between the guide nozzle and the copper wire after the copper wire passes through the feed wheel, guide nozzle, and drawing die hole. This friction causes wear on the inner wall of the guide nozzle, resulting in the copper wire's centerline not being collinear with the centerline of the drawing die hole. This leads to one-sided contact friction between the copper wire and the drawing hole, causing excessive or concentrated local stress. Defects such as longitudinal scratches, pulls, and peeling appear on the copper wire surface. Excessive local extrusion pressure can also rupture the lubricating film on the copper wire surface, causing the copper wire to stick to the die, further aggravating surface damage. Uneven extrusion pressure can cause tension fluctuations in the copper wire, leading to slippage or deviation on the traction wheel, further exacerbating the non-perpendicular state between the copper wire and the die, creating a vicious cycle. Furthermore, concentrated local extrusion pressure can cause uneven deformation of the copper wire's internal grains, generating residual internal stress and causing fluctuations in the tensile strength, elongation, and other mechanical properties of the copper wire.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a wire core conductor drawing machine for producing insulated cables, comprising a mold base disposed on the drawing machine, wherein the mold base is provided with a drawing mold for processing conductor copper wire, and the mold base is provided with a guide structure for guiding the copper wire into and out of the drawing mold; The mold base includes a base, on which two positioning frames are fixedly installed, and on the two positioning frames are locking components for pressing the wire drawing mold. The wire drawing die includes a die body mounted on two positioning frames, and the die body has a plurality of wire drawing holes. The guiding structure includes two traction components respectively mounted on the base, and the two traction components are located at both ends of the wire drawing hole. Each of the two traction components is provided with a tension compensation component. Synchronous adjustment components are provided on both the left and right sides of the base, and the synchronous adjustment component on the same side is connected to the traction component on the same side.

[0005] Furthermore, each of the traction components includes a guide frame connected to the base, a moving shaft is provided on the guide frame, a tension wheel is rotatably mounted on the moving shaft, a fixed shaft is fixedly mounted on the guide frame, an infeed wheel is rotatably mounted on the fixed shaft of the left guide frame, and a guide wheel is rotatably mounted on the fixed shaft of the right guide frame.

[0006] Furthermore, the ratio of the standard diameter of the feed wheel to the standard diameter of the guide wheel is equal to the ratio of the inlet diameter to the outlet diameter of the drawing hole. Copper wires are provided on the feed wheel, the guide wheel, and the two tension wheels, and the copper wires between the feed wheel and the guide wheel are coaxially aligned with the central axis of the drawing hole.

[0007] Furthermore, guide grooves are provided on both sides of the guide frame, and the two ends of the moving shaft are slidably connected to the two guide grooves on the guide frame. The tension compensation component includes two L-shaped seats that are fixedly connected to the two ends of the moving shaft. A connecting rod that penetrates the guide frame is fixedly installed on the side of the two L-shaped seats away from the mold body, and the connecting rod is slidably connected to the guide frame. A compensation spring is sleeved on the two connecting rods, and the two ends of the compensation spring are fixedly connected to the guide frame and the L-shaped seat respectively.

[0008] Furthermore, a gear is rotatably installed inside the base, and each of the two synchronous adjustment components includes a support frame fixedly connected to the guide frame. A baffle is fixedly installed at the bottom of each of the two support frames, and a rack that meshes with the gear is fixedly installed on each of the two baffles. The two racks are symmetrically distributed around the central axis of the gear, and one end of the rack passes through the base and is slidably connected to the base.

[0009] Furthermore, guide rods are fixedly installed on both the left and right sides of the base. A buffer spring is sleeved on the guide rod on the left side of the base. The two ends of the buffer spring are fixedly connected to the baffle and the base, respectively. The baffles of the two synchronous adjustment components are slidably installed on the two guide rods.

[0010] Furthermore, the support frame of the left synchronous adjustment component is provided with a wire support block for supporting the copper wire. The wire support block includes a V-shaped alumina ceramic block. The support frame of the left synchronous adjustment component is provided with a slot, and the bottom of the V-shaped alumina ceramic block is inserted into the slot.

[0011] Furthermore, an iron pad is fixedly connected to the bottom of the V-shaped alumina ceramic block, and a magnet is fixedly installed inside the slot, with the magnet magnetically connected to the iron pad.

[0012] Furthermore, each of the two guide frames has a protrusion and a recess on its opposite side, and the protrusion and the recess are slidably inserted into each other. The top of the base has a limiting groove, and the protrusion and the recess are slidably connected to the limiting groove.

[0013] Compared with the prior art, the present invention provides a wire drawing machine for producing insulated cables, which has the following advantages: 1. The conductor drawing machine for producing this insulated cable ensures the matching of the linear speed of the copper wire before and after drawing by the diameter ratio design of the infeed wheel and the guide wheel, avoiding path deviation caused by the difference in linear speed. By placing the tension wheel in front on the left and the tension wheel behind on the right, the tension adjustment action is completely decoupled from the reference copper wire path of the drawing section, avoiding tension adjustment interference with coaxiality. 2. The conductor drawing machine for producing this insulated cable uses gears and centrally symmetrically distributed double racks in a synchronous adjustment component, along with a guide frame, support frame, and baffle, to achieve synchronous reverse movement of the left and right traction components under the drive of the copper wire feeding force. This ensures that the distance between the wire feeding wheel and the drawing hole, and the distance between the guide wheel and the drawing hole change synchronously and equidistantly during the adjustment process, and always maintains that the central axes of the wire feeding wheel, guide wheel, and drawing hole are coaxial and coincident. 3. The conductor drawing machine for producing this insulated cable forms a double-end graded tension closed-loop compensation mechanism through the moving shaft and tension wheel of the traction components on both sides, the L-shaped seat, connecting rod, compensation spring of the tension compensation component, and the guide groove of the guide frame. When the copper wire tension changes suddenly, the tension wheel drives the moving shaft to slide along the guide groove, and the L-shaped seat compresses or releases the compensation spring. The elastic deformation of the spring absorbs the tension peak and compensates for the tension attenuation in real time, so as to realize the dynamic adaptive adjustment of the tension. 4. The conductor drawing machine for producing this insulated cable uses a decoupled layout with the left tension wheel located at the front end of the infeed wheel and the right tension wheel located at the rear end of the guide wheel. This allows the tension compensation action to be applied entirely to the outside of the reference path of the drawing section. While adjusting the tension in real time, it does not interfere with the coaxiality of the copper wire between the infeed wheel and the guide wheel, thus preventing the vicious cycle of "tension fluctuation, path deviation, unilateral friction, and further tension fluctuation" from the root. 5. The conductor drawing machine for producing this insulated cable uses a V-shaped alumina ceramic block on the wire support block to automatically center the copper wire at the wire inlet, further helping to ensure the stability of the copper wire's center position, avoiding coaxiality deviation caused by guide wear, completely solving the core pain point of one-sided contact friction between the copper wire and the drawing hole, and eliminating defects such as scratches, pulls, and peeling on the copper wire surface. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 1 A diagram showing the flipped state; Figure 3 This is an exploded view of the wire drawing die and die base of the present invention; Figure 4 This is a schematic diagram of the mold base and guide structure of the present invention; Figure 5 This is a schematic diagram of the mold base and dynamic adjustment component of the present invention; Figure 6 This is a schematic diagram of the structural guiding structure of the present invention; Figure 7 This is an exploded view of the structural guide structure of the present invention; Figure 8 This is a schematic diagram of the dynamic adjustment component and traction component of the present invention; Figure 9 This is a schematic diagram of the structural tension compensation component of the present invention; Figure 10 This is an exploded view of the dynamic adjustment component of the present invention; Figure 11 This is a schematic diagram of the copper wire, feed wheel, tension wheel, and guide wheel of the present invention.

[0015] In the diagram: 1. Mold base; 11. Base; 111. Guide rod; 112. Gear; 113. Limiting groove; 12. Positioning frame; 13. Locking component; 2. Wire drawing die; 21. Mold body; 22. Wire drawing hole; 3. Guide structure; 31. Traction assembly; 311. Guide frame; 3111. Protrusion; 3112. Recess; 3113. Guide groove; 312. Moving shaft; 313. Tension wheel; 314. Fixed shaft; 315. Feed wheel; 316. Guide wheel; 32. Tension compensation assembly; 321. L-shaped seat; 322. Connecting rod; 323. Compensating spring; 33. Synchronization adjustment assembly; 331. Support frame; 3311. Slot; 3312. Magnet; 332. Baffle; 3321. Buffer spring; 333. Rack; 334. Cable support block; 3341. V-shaped alumina ceramic block; 3342. Iron pad; 4. Copper wire. Detailed Implementation

[0016] 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.

[0017] Example 1: Please refer to Figure 1-11 The wire core conductor drawing machine for producing insulated cables in this embodiment includes a mold base 1 set on the drawing machine, a drawing mold 2 for processing conductor copper wires on the mold base 1, and a guide structure 3 for guiding the copper wires in and out of the drawing mold 2 on the mold base 1.

[0018] Example 2: Please refer to Figure 1-11 Based on Embodiment 1, a wire core conductor drawing machine for producing insulated cables includes a mold base 1 comprising a base 11, on which two positioning frames 12 are fixedly installed, and on which locking components 13 for pressing the wire drawing mold 2 are fixedly installed. The wire drawing die 2 includes a die body 21 mounted on two positioning frames 12, and the die body 21 has a plurality of wire drawing holes 22. The guide structure 3 includes two traction components 31 respectively installed on the base 11, and the two traction components 31 are located at both ends of the wire drawing hole 22. Each of the two traction components 31 is provided with a tension compensation component 32. The left and right sides of the base 11 are provided with synchronous adjustment components 33, and the synchronous adjustment component 33 on the same side is connected to the traction component 31 on the same side.

[0019] It should be noted that by symmetrically setting traction components 31 at both ends of the wire drawing hole 22, a closed-loop guide architecture of "pre-tensioning, reference centering, wire drawing and forming, reference orientation, and post-tensioning" is constructed to replace the traditional fixed guide nozzle and avoid coaxiality deviation caused by guide wear. By linking the tension compensation component 32 with the tension wheel 313 of the traction component 31, the tension compensation action is decoupled from the reference copper wire path of the drawing section, and the copper wire tension fluctuation during the drawing process is compensated in real time to avoid slippage and deviation caused by sudden tension changes, while not interfering with the coaxiality of the copper wire. By connecting the synchronous adjustment component 33 to the two-end traction components 31, the two-end guide structures 3 can move synchronously in opposite directions or in opposite directions under the drive of the copper wire feeding force, adaptively adjusting the distance between the wire feeding wheel 315, the guide wheel 316 and the wire drawing hole 22, while ensuring that the coaxiality of the copper wire and the wire drawing hole 22 always meets the standard. This solution resolves the one-sided friction between the copper wire and the drawing hole 22, eliminating the core cause of copper wire surface damage. It achieves complete decoupling of tension compensation and the reference path, suppressing the vicious cycle of tension fluctuations. It enables adaptive adjustment of the spacing without manual operation, ensuring the dimensional accuracy and mechanical performance stability of the copper wire processing, and significantly improving the production quality and finished product qualification rate of the insulated cable core conductor.

[0020] Each traction component 31 includes a guide frame 311 connected to the base 11. A moving shaft 312 is provided on the guide frame 311, and a tension wheel 313 is rotatably mounted on the moving shaft 312. A fixed shaft 314 is fixedly mounted on the guide frame 311. A wire feed wheel 315 is rotatably mounted on the fixed shaft 314 of the left guide frame 311, and a guide wheel 316 is rotatably mounted on the fixed shaft 314 of the right guide frame 311. Both the wire feed wheel 315 and the guide wheel 316 are V-shaped wheels.

[0021] It should be noted that the guide frame 311 serves as the mounting base for the traction assembly 31, providing stable mounting support for the moving shaft 312 and the fixed shaft 314. At the same time, as a synchronous adjustment actuator, it can drive the entire traction assembly 31 to slide under the force of copper wire feeding. The wire feed wheel 315 and the guide wheel 316 are fixedly installed by the fixed shaft 314 to provide a fixed reference guide for the copper wire and ensure the stability of the copper wire path in the drawing section. By placing the left tension wheel 313 in front and the right tension wheel 313 in the rear, the tension adjustment action is completely isolated from the reference path of the wire drawing section, avoiding tension adjustment interference with the coaxiality of the copper wire and the wire drawing hole 22. By setting the wire inlet wheel 315 at the wire inlet end and the guide wheel 316 at the wire outlet end, the copper wire before and after wire drawing is precisely guided in sections to adapt to the diameter change of the copper wire before and after wire drawing. This invention solves the problems in existing technologies, such as the inability of fixed guide structures to adapt to tension changes, insufficient guiding accuracy, interference of tension adjustment actions with the reference path of the drawing section, inability to adapt to differences in copper wire diameter before and after drawing, and misalignment of coaxiality caused by asynchronous spacing adjustment. At the same time, it provides a reliable installation and execution basis for decoupled dynamic tension adjustment and synchronous adjustment of copper wire drive.

[0022] In addition, the ratio of the standard diameter of the feed wheel 315 to the standard diameter of the guide wheel 316 is equal to the ratio of the inlet diameter to the outlet diameter of the drawing hole 22. Copper wires are provided on the feed wheel 315, the guide wheel 316 and the two tension wheels 313, and the copper wire between the feed wheel 315 and the guide wheel 316 is coaxial with the central axis of the drawing hole 22.

[0023] It should be noted that, based on the principle that the volume remains constant during the copper wire drawing process, the diameter ratio of the infeed wheel 315 to the guide wheel 316 is set to be consistent with the diameter ratio of the inlet and outlet of the drawing hole 22, so that the wire infeed speed of the infeed wheel 315 and the wire outfeed speed of the guide wheel 316 are perfectly matched, thus avoiding sudden changes in copper wire tension or uneven stretching caused by the difference in wire speed. By directly setting the wire feed wheel 315 and the guide wheel 316 at the inlet and outlet ends of the wire drawing hole 22, the reference path of the copper wire in the wire drawing section is directly defined, ensuring that the copper wire between the two is coaxial with the central axis of the wire drawing hole 22, thus ensuring that the copper wire enters the wire drawing hole 22 horizontally and vertically from the structure. By placing the tension wheel 313 outside the reference path, the tension adjustment action of the tension wheel and the spacing adjustment action of the traction component 31 will not interfere with the reference copper wire path between the feed wheel 315 and the guide wheel 316. It ensures the matching of the linear speed of the copper wire before and after drawing, eliminates tension fluctuations caused by the difference in linear speed, maintains the stability of the copper wire drawing process, and ensures the coaxiality of the copper wire and the drawing hole 22 from the structural reference. Even during the spacing adjustment process, it can completely avoid surface damage to the copper wire and abnormal wear of the mold caused by unilateral friction, while improving the processing dimensional accuracy of the copper wire and the service life of the mold.

[0024] Furthermore, guide grooves 3113 are provided on both sides of the guide frame 311, and the two ends of the moving shaft 312 are slidably connected to the two guide grooves 3113 on the guide frame 311 respectively. The tension compensation component 32 includes two L-shaped seats 321 that are fixedly connected to the two ends of the moving shaft 312 respectively. A connecting rod 322 that penetrates the guide frame 311 is fixedly installed on the side of the two L-shaped seats 321 away from the mold body 21, and the connecting rod 322 is slidably connected to the guide frame 311. A compensation spring 323 is sleeved on the two connecting rods 322, and the two ends of the compensation spring 323 are fixedly connected to the guide frame 311 and the L-shaped seat 321 respectively.

[0025] It should be noted that the L-shaped seat 321 forms a linkage structure between the moving shaft 312, the connecting rod 322, and the compensating spring 323. When the tension of the copper wire increases, the tension wheel 313 drives the moving shaft 312 and the L-shaped seat 321 to slide, compressing the compensating spring 323. The peak tension is absorbed by the elastic deformation of the spring. When the tension of the copper wire decreases, the compensation spring 323 rebounds, pushing the L-shaped seat 321, the moving shaft 312, and the tension wheel 313 to slide in the opposite direction, thus re-tensioning the copper wire and achieving real-time dynamic compensation of tension. It achieves real-time dynamic closed-loop compensation of copper wire tension during the wire drawing process, effectively suppressing tension fluctuations and avoiding uneven stretching and wire breakage caused by excessive tension, as well as slippage and deviation caused by insufficient tension. The dual tension compensation components 32 at both the inlet and outlet ends simultaneously perform graded tension compensation for the incoming and outgoing wires, further improving the stability of the copper wire drawing process.

[0026] The base 11 has a gear 112 rotatably mounted inside it. The two synchronous adjustment components 33 each include a support frame 331 fixedly connected to the guide frame 311. The bottom of the two support frames 331 is fixedly mounted with a baffle 332. The two baffles 332 are fixedly mounted with racks 333 that mesh with the gear 112. The two racks 333 are symmetrically distributed around the central axis of the gear 112. One end of the rack 333 passes through the base 11 and is slidably connected to the base 11.

[0027] It should be noted that when the copper wire feed force drives the single-sided guide frame 311 to slide, the guide frame 311 drives the rack 333 on the same side to move through the support frame 331 and the baffle 332. The rack 333 drives the gear 112 to rotate, and the gear 112 drives the rack 333 on the other side to move synchronously in the opposite direction and at equal distances, thereby driving the guide frame 311 on the other side to slide synchronously in the opposite direction, so as to realize the synchronous opposite or backward movement of the two-end traction components 31. During the adjustment process, the distance between the wire feed wheel 315 and the wire drawing hole 22, and the distance between the guide wheel 316 and the wire drawing hole 22 are always changed synchronously, and the central axes of the wire feed wheel 315, the guide wheel 316 and the wire drawing hole 22 are always coaxial and coincident. The fully automatic synchronous adjustment of the traction components 31 at both ends is achieved without manual operation. The adaptive spacing adjustment can be driven by the force applied by the copper wire, which greatly simplifies the operation of the equipment and improves the adjustment response speed. It ensures that the copper wire between the wire feed wheel 315 and the guide wheel 316 is always coaxially aligned with the central axis of the wire drawing hole 22 during the adjustment process, thus avoiding the problem of one-sided friction from the root. It can accurately adapt to the spacing requirements of different specifications of wire drawing holes 22 and different diameter copper wires, greatly improving the versatility and adaptability of the equipment.

[0028] Example 3: Please refer to Figure 1-11 Based on Embodiment 2, a wire core conductor drawing machine for producing insulated cables has guide rods 111 fixedly installed on both the left and right sides of the base 11. A buffer spring 3321 is sleeved on the guide rod 111 on the left side of the base 11. The two ends of the buffer spring 3321 are fixedly connected to the baffle 332 and the base 11, respectively. The baffles 332 of the two synchronous adjustment components 33 are slidably installed on the two guide rods 111.

[0029] It should be noted that the buffer spring 3321 is sleeved on the guide rod 111, and the two ends are connected to the baffle 332 and the base 11 respectively, providing bidirectional buffer damping for the synchronous movement process. On the one hand, it avoids excessive adjustment caused by excessive copper wire feeding force, and on the other hand, it absorbs the impact force transmitted to the guide frame 311 by tension fluctuation during copper wire feeding, avoids positional deviation of the traction component 31, and maintains the coaxiality stability of the wire feeding wheel 315, guide wheel 316 and wire drawing hole 22.

[0030] Among them, the support frame 331 of the left synchronous adjustment component 33 is provided with a wire support block 334 for supporting the copper wire. The wire support block 334 includes a V-shaped alumina ceramic block 3341. The support frame 331 of the left synchronous adjustment component 33 is provided with a slot 3311, and the bottom of the V-shaped alumina ceramic block 3341 is inserted into the slot 3311.

[0031] It should be noted that by setting a wire support block 334 between the left tension wheel 313 and the wire feed wheel 315, the pre-tensioned copper wire is assisted in centering and supporting, further improving the centering and guiding accuracy of the wire feed wheel 315, replacing the traditional fixed guide nozzle. The wire support block 334 adopts a V-shaped alumina ceramic block 3341. The V-shaped structure can realize the automatic centering of the copper wire, ensuring the stability of the center position of the copper wire. The alumina ceramic material has extremely high wear resistance and self-lubrication, which greatly reduces the friction coefficient with the copper wire and avoids wear after long-term use.

[0032] In addition, an iron pad 3342 is fixedly connected to the bottom of the V-shaped alumina ceramic block 3341, and a magnet 3312 is fixedly installed inside the slot 3311, and the magnet 3312 is magnetically connected to the iron pad 3342.

[0033] It should be noted that by setting an iron pad 3342 at the bottom of the V-shaped alumina ceramic block 3341 and setting a magnet 3312 in the slot 3311, the V-shaped alumina ceramic block 3341 is firmly fixed in the slot 3311 by the magnetic attraction between the magnet 3312 and the iron pad 3342, thus preventing the wire support block 334 from loosening during equipment operation. When disassembling and assembling, the V-shaped alumina ceramic block 3341 can be pulled out or inserted simply by overcoming the magnetic attraction, without the need for additional fasteners and tools.

[0034] Finally, the two guide frames 311 are provided with a protrusion 3111 and a recess 3112 on opposite sides, and the protrusion 3111 and the recess 3112 are slidably inserted into each other. The top of the base 11 is provided with a limiting groove 113, and the protrusion 3111 and the recess 3112 are slidably connected to the limiting groove 113 respectively.

[0035] It should be noted that the lateral and vertical limiting between the two guide frames 311 is achieved by the sliding and interlocking of the protrusions 3111 and the concave parts 3112 on the two guide frames 311, ensuring that the two guide frames 311 are always at the same horizontal height during the synchronous sliding process driven by the copper wire, without any vertical offset, and ensuring that the center height of the wire feed wheel 315 and the guide wheel 316 are consistent. The convex part 3111 and the concave part 3112 are longitudinally limited by the limiting groove 113 at the top of the base 11, ensuring that the two guide frames 311 slide in a straight line along the preset direction of the limiting groove 113, avoiding left and right deviation, and avoiding jamming during sliding, ensuring that the wire feed wheel 315 and the guide wheel 316 are always coaxial with the wire drawing hole 22 during synchronous adjustment.

[0036] Example 4: Please refer to Figure 1-11 Based on embodiments one, two, and three, a wire core conductor drawing machine for producing insulated cables is provided, wherein the inlet diameter of the drawing hole 22 is [missing information]. The outlet diameter of the wire drawing hole 22 is The standard diameter of the 315 feed roller is The standard diameter of the 316 guide wheel is ; Then we have: ,Right now ; like , , ; but ; like , , ; but .

[0037] The working principle of the above embodiments is as follows: The wire drawing machine traction mechanism starts, pulling the copper wire to move at a constant speed. The copper wire first passes through the pre-tension limit of the tension wheel 313 on the left side to eliminate the slack of the copper wire at the inlet end and stabilize the initial tension of the inlet wire. Then, with the reference centering guidance of the wire feeding wheel 315 and the V-shaped auxiliary centering support of the wire support block 334, the copper wire is ensured to enter the wire drawing hole 22 horizontally and vertically. The copper wire undergoes plastic deformation under radial pressure from the inner wall of the die hole 22, resulting in a reduction in diameter and axial elongation, thus completing the wire drawing process. The formed copper wire passes through the outlet end of the drawing hole 22 and is first guided by the orientation reference of the guide wheel 316 to adapt to the diameter change and linear speed of the copper wire after drawing, so as to ensure the stability of the wire exit path reference. Finally, the tension fluctuation at the output end is eliminated by the tension wheel 313 on the right side, and the cable is stably fed into the subsequent cabling process. During the wire drawing process, when the overall tension of the copper wire suddenly increases, the squeezing force of the copper wire on the tension wheels 313 on both sides increases simultaneously, pushing the moving shafts 312 on both sides to slide away from the mold body 21 along the guide grooves 3113 of the guide frame 311. The moving shaft 312 drives the L-shaped seats 321 at both ends to move synchronously. The L-shaped seats 321 compress the compensation spring 323, and absorb the tension peak through the elastic deformation of the spring to offset the impact of the tension change on the copper wire. When the tension of the copper wire decreases, the compressed compensation spring 323 rebounds and resets, pushing the L-shaped seat 321 and the moving shaft 312 to slide closer to the mold body 21, which drives the tension wheels 313 on both sides to re-tension the copper wire and maintain the tension of the copper wire in real time. Since the tension wheel 313 is located at the front end of the feed wheel 315 and the rear end of the guide wheel 316, the tension adjustment action does not interfere with the reference copper wire path of the drawing section between the feed wheel 315 and the guide wheel 316, ensuring that the coaxiality of the copper wire and the drawing hole 22 remains stable. When tension fluctuations, path deviations, or different specifications of copper wires occur during the copper wire feeding process, the axial force of the copper wire feeding will directly act on the guide frame 311 at the wire inlet end, causing the single-sided guide frame 311 to slide along the limiting groove 113 of the base 11. The guide frame 311 drives the baffle 332 to move synchronously through the support frame 331 fixed at the bottom. The baffle 332 drives the rack 333 on the same side fixedly connected to it to move linearly along the guide direction of the base 11. The rack 333 meshes with the gear 112 rotatably mounted inside the base 11, causing the gear 112 to rotate around its own axis. Since the two racks 333 are symmetrically distributed around the central axis of the gear 112, when the gear 112 rotates, it will drive the rack 333 on the other side to move synchronously in the opposite direction and at equal distances. The rack 333 on the other side will drive the guide frame 311 on the other side to slide synchronously in the opposite direction along the limiting groove 113 through the corresponding baffle 332 and support frame 331, so as to realize the synchronous opposite or backward movement of the traction components 31 on the left and right sides. By synchronously moving the two traction components 31, the distance between the wire feeding wheel 315 and the wire drawing hole 22 and the distance between the guide wheel 316 and the wire drawing hole 22 are precisely and adaptively adjusted. At the same time, the central axis of the wire feeding wheel 315, the guide wheel 316 and the wire drawing hole 22 are always coaxially coincided, which can adapt to the wire drawing requirements of different specifications of copper wire and offset the coaxiality deviation caused by the path offset during the copper wire feeding process. During the adjustment process, the guide rod 111 provides full-range sliding guidance for the baffle 332, avoiding poor meshing and transmission jamming caused by the offset of the rack 333 and the gear 112. The buffer spring 3321 sleeved on the guide rod 111 provides bidirectional buffer damping for the synchronous movement process, and absorbs the impact force transmitted by the tension fluctuation during the copper wire feeding process, maintaining the position accuracy and adjustment stability of the traction component 31. The protrusion 3111 and the concave part 3112 between the two guide frames 311 slide and engage to ensure that the two guide frames 311 are always at the same horizontal height during synchronous sliding, without vertical or horizontal offset, and further ensure the coaxiality of the feed wheel 315 and the guide wheel 316. In addition, when the cable support block 334 wears out after long-term use, the V-shaped alumina ceramic block 3341 can be pulled upwards directly to overcome the magnetic attraction between the magnet 3312 and the iron pad 3342 to complete the disassembly. When replacing the new V-shaped alumina ceramic block 3341, its bottom is inserted into the slot 3311 of the support frame 331, and it can be fixed by the magnetic connection between the magnet 3312 and the iron pad 3342, realizing tool-free quick disassembly and assembly.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire drawing machine for producing insulated cables, comprising a die holder (1) disposed on the drawing machine, characterized in that: The mold base (1) is provided with a wire drawing mold (2) for processing conductor copper wires, and the mold base (1) is provided with a guide structure (3) for guiding copper wires in and out of the wire drawing mold (2). The mold base (1) includes a base (11), on which two positioning frames (12) are fixedly installed, and on the two positioning frames (12) are locking parts (13) for pressing the wire drawing mold (2). The wire drawing die (2) includes a die body (21) mounted on two positioning frames (12), and the die body (21) has a plurality of wire drawing holes (22). The guide structure (3) includes two traction components (31) respectively installed on the base (11), and the two traction components (31) are located at both ends of the wire drawing hole (22). Each of the two traction components (31) is provided with a tension compensation component (32). The left and right sides of the base (11) are provided with synchronous adjustment components (33), and the synchronous adjustment component (33) on the same side is connected to the traction component (31) on the same side.

2. The wire drawing machine for producing insulated cables according to claim 1, characterized in that: Each traction assembly (31) includes a guide frame (311) connected to the base (11). A moving shaft (312) is provided on the guide frame (311). A tension wheel (313) is rotatably mounted on the moving shaft (312). A fixed shaft (314) is fixedly mounted on the guide frame (311). A wire feed wheel (315) is rotatably mounted on the fixed shaft (314) of the left guide frame (311). A guide wheel (316) is rotatably mounted on the fixed shaft (314) of the right guide frame (311).

3. The wire drawing machine for producing insulated cables according to claim 2, characterized in that: The ratio of the standard diameter of the feed wheel (315) to the standard diameter of the guide wheel (316) is equal to the ratio of the inlet diameter to the outlet diameter of the drawing hole (22). Copper wires (4) are provided on the feed wheel (315), the guide wheel (316) and the two tension wheels (313), and the copper wires (4) between the feed wheel (315) and the guide wheel (316) are coaxial with the central axis of the drawing hole (22).

4. The wire drawing machine for producing insulated cables according to claim 2, characterized in that: The guide frame (311) has guide grooves (3113) on both sides, and the two ends of the moving shaft (312) are slidably connected to the two guide grooves (3113) on the guide frame (311). The tension compensation component (32) includes two L-shaped seats (321) that are fixedly connected to the two ends of the moving shaft (312). The two L-shaped seats (321) are fixedly installed with connecting rods (322) that penetrate the guide frame (311) on the side away from the mold body (21), and the connecting rods (322) are slidably connected to the guide frame (311). The two connecting rods (322) are fitted with compensation springs (323), and the two ends of the compensation springs (323) are fixedly connected to the guide frame (311) and the L-shaped seats (321) respectively.

5. A wire drawing machine for producing insulated cables according to claim 2, characterized in that: The base (11) is rotatably mounted with a gear (112). Each of the two synchronous adjustment components (33) includes a support frame (331) fixedly connected to the guide frame (311). Each of the two support frames (331) has a baffle (332) fixedly mounted at the bottom. Each of the two baffles (332) has a rack (333) fixedly mounted on it, meshing with the gear (112). The two racks (333) are symmetrically distributed around the central axis of the gear (112). One end of the rack (333) passes through the base (11) and is slidably connected to the base (11).

6. A wire drawing machine for producing insulated cables according to claim 5, characterized in that: Guide rods (111) are fixedly installed on both the left and right sides of the base (11). A buffer spring (3321) is sleeved on the guide rod (111) on the left side of the base (11). The two ends of the buffer spring (3321) are fixedly connected to the baffle (332) and the base (11) respectively. The baffles (332) of the two synchronous adjustment components (33) are slidably installed on the two guide rods (111).

7. A wire drawing machine for producing insulated cables according to claim 5, characterized in that: The support frame (331) of the left synchronous adjustment component (33) is provided with a wire support block (334) for supporting copper wires. The wire support block (334) includes a V-shaped alumina ceramic block (3341). The support frame (331) of the left synchronous adjustment component (33) is provided with a slot (3311), and the bottom of the V-shaped alumina ceramic block (3341) is inserted into the slot (3311).

8. A wire drawing machine for producing insulated cables according to claim 7, characterized in that: The bottom of the V-shaped alumina ceramic block (3341) is fixedly connected to an iron pad (3342), and a magnet (3312) is fixedly installed inside the slot (3311), and the magnet (3312) is magnetically connected to the iron pad (3342).

9. A wire drawing machine for producing insulated cables according to claim 2, characterized in that: The two guide frames (311) are provided with a protrusion (3111) and a recess (3112) on opposite sides, and the protrusion (3111) and the recess (3112) are slidably inserted into each other. The top of the base (11) is provided with a limiting groove (113), and the protrusion (3111) and the recess (3112) are slidably connected to the limiting groove (113).

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