Automatic twisting device for cable core aluminum strand

Abstract

The present application relates to cable production technical field, especially to a kind of automatic torsion wire processing device of cable core aluminium stranded conductor, including support, rotatingly installed rotating column on support, and fixedly connected with conical seat on rotating column, and torsion wire groove is opened on the conical surface of conical seat;Torsion wire assembly, it includes conical torsion wire wheel, and pressing wire component, it includes pressing wire plate, and multiple rotating rings and pressing wire wheel two are rotatably installed on pressing wire plate, and pressing wire wheel one is rotatably installed on rotating ring;The present application is realized by conical torsion wire wheel and two groups of pressing wire wheel cooperation grading torsion wire, avoid wire torsion distance disorder, over-torsion under-torsion problem, collocate self-adapting tension compensation structure, ensure single aluminium wire tension, incoming wire speed uniform, regular torsion wire pitch, improve stranded conductor forming precision and compactness, simultaneously utilize gear linkage to realize pay-off follow-up anti-winding, cooperate with controllable pay-off of damping, avoid line slip, uneven tightness problem, effectively reduce carding, broken wire, bad problem such as stranding.

Description

Technical Field

[0001] This invention relates to the field of cable manufacturing technology, and in particular to an automatic twisting device for aluminum stranded wire in cable cores. Background Technology

[0002] A cable is a component for transmitting electrical energy or signals, consisting of one or more mutually insulated conductor cores, an insulating sheath, and a protective sheath. It can transmit power and communication signals over long distances and is adaptable to various laying environments, such as indoors, underground, and outdoors. It relies on the insulation structure to isolate the conductor and the outer protective layer to resist external forces, moisture, and corrosion, ensuring safe and stable transmission.

[0003] In the current process of twisting aluminum stranded wire for cable cores, traditional equipment only drives the overall circumferential rotation of multiple aluminum wires to achieve stranding, without implementing independent torsion control for each individual aluminum wire. During the stranding process, the stress on each aluminum wire varies greatly, easily leading to some wires being over-twisted, some wires under-twisted, and uneven strand torque. Furthermore, there is a lack of continuous and effective constant tension control methods, resulting in continuous fluctuations in the incoming wire tension. After stranding, the residual torsional stress inside the wire is difficult to release, often resulting in loose strands, uneven strands, insufficient roundness of the aluminum stranded wire cross-section, uneven conductor compression, and reduced mechanical strength and conductive stability of the aluminum stranded wire.

[0004] To address the aforementioned technical deficiencies, a solution is proposed that aims to improve the quality of wire twisting by using a graded twisting method combined with an adaptive tension compensation structure; at the same time, it ensures stable and smooth processing by relying on a synchronous linkage anti-winding structure and damped wire release. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic twisting device for aluminum stranded wire in cable cores to solve the aforementioned technical defects.

[0006] The objective of this invention can be achieved through the following technical solution: an automatic twisting processing device for aluminum stranded wire of cable core, including a support, a rotating column rotatably mounted on the support, a conical seat fixedly connected to the rotating column, and a twisting groove for single strand twisting and assisting multi-strand strand twisting is opened on the conical surface of the conical seat.

[0007] A twisting assembly, comprising a conical twisting wheel, wherein an anti-slip layer is installed on the annular outer wall of the conical twisting wheel;

[0008] A wire pressing assembly includes a wire pressing plate, on which multiple rotating rings and wire pressing wheels are rotatably mounted. A wire pressing wheel that cooperates with a conical twisting wheel to twist a single strand of wire is rotatably mounted on the rotating rings.

[0009] The wire feeding assembly includes a U-shaped frame with a wire feeding wheel rotatably connected to it. The conical twisting wheel rotates synchronously with the U-shaped frame to prevent single strands of wire from winding in the opposite direction and reducing the subsequent twisting quality.

[0010] Preferably, one end of the conical seat has a cavity communicating with the twisting groove, the conical twisting wheel is located in the cavity, a rotating sleeve is rotatably connected to the rotating column and fixedly connected to the conical twisting wheel, a gear one is fixedly installed on the rotating sleeve, a motor is installed on the inner wall of the cavity by bolts, and a gear two that meshes with gear one is installed on the output shaft of the motor.

[0011] Preferably, the pressure plate and the twisting groove are arranged parallel to each other, and the rotating ring is located between the pressure wheel and the rotating column.

[0012] Preferably, a bracket is fixedly connected to the rotating column, and a support plate is fixedly connected to the bracket at the position corresponding to each twisting groove. A screw that is rotatably connected to the pressure plate is threaded onto the support plate.

[0013] Preferably, a conduit that is rotatably connected to the bracket is fixedly connected to the U-shaped frame, and a gear three that meshes with gear one is fixedly connected to the conduit, and gear three has the same size as gear one.

[0014] Preferably, the annular outer wall of the wire feeding reel has several grooves, a damping column that slidably connects to the U-shaped frame and cooperates with the grooves, and a spring is fixedly connected between the damping column and the U-shaped frame, and the end of the damping column has a hemispherical structure.

[0015] Preferably, a tensioning wheel is provided inside the twisted groove and at one end of the conical seat near the rotating column. Limiting sliders are rotatably connected to both sides of the tensioning wheel. A limiting groove is provided on the inner wall of the twisted groove to slide in connection with the corresponding limiting slider. A tension spring is fixedly connected between the top of the limiting slider and the limiting groove.

[0016] Preferably, a wire-gathering ring is fixedly installed on the top of the support by a support rod, and the wire-gathering ring is coaxially arranged with the conical seat.

[0017] This invention also proposes an automatic twisting process:

[0018] Step 1: The aluminum wire on the pay-off wheel enters the twisting groove through the wire-passing tube, and after being guided by the tensioning wheel, it passes out from the wire-gathering ring. The screw is rotated to drive the pressure plate to move towards the conical twisting wheel. The second pressure wheel on the pressure plate, together with the twisting groove, and the first pressure wheel and the conical twisting wheel, clamp the single strand of aluminum wire, and then pull the multiple strands of aluminum wire.

[0019] Step 2: The motor drives gear 2 to rotate and gear 1 to rotate. Gear 1 drives the conical twisting wheel to rotate through the rotating sleeve. The conical twisting wheel, together with the deflectable pressing wheel 1, drives multiple single-strand aluminum wires to rotate synchronously. Then, after passing through the pressing wheel 2 and the inner wall of the twisting groove, the twist pitch formed by the single-strand aluminum wire is uniformized, while preventing the single-strand aluminum wire from being further twisted after being twisted, resulting in excessive twisting.

[0020] Step 3: Gear 1 engages with Gear 3, causing the threading tube to rotate in the opposite direction. The threading tube, via the U-shaped frame, drives the pay-off wheel to rotate. The rotation direction and speed of the U-shaped frame are equal to the rotation direction and speed when the single-strand aluminum wire knob is turned. This prevents the un-twisted single-strand wire from rotating in the opposite direction to the single-strand wire knob, which would cause the knob to not be turned in place during operation, affecting the quality of subsequent multi-strand aluminum wire stranding. Then, combined with the rotation of the conical seat, the multi-strand twisted aluminum wire is wound around. Combined with the single-strand aluminum wire twisting process, this promotes the automatic twisting and stranding of the multi-strand aluminum wire.

[0021] The beneficial effects of this invention are as follows:

[0022] (1) The present invention adopts a graded twisting structure with a conical twisting wheel and a pressure wheel one and a pressure wheel two to radially twist each single aluminum wire while avoiding torque disorder, local over-twist or under-twist caused by instantaneous twisting; at the same time, the adaptive tensioning wheel inside the twisting groove is used in conjunction with a tension spring to compensate for tension fluctuations in the wire tension during the unwinding process, so that all single aluminum wires entering the twisting area always maintain constant tension and uniform feeding speed, ensuring that the number of twists and pitch height of each wire are consistent. Then, the pressure wheel two performs secondary regularization and limiting on the formed twist shape to avoid problems such as loose strands, off-center strands, and twisting disorder in the subsequent multi-strand aluminum wire stranding, thereby improving the overall roundness, compactness and forming consistency of the multi-strand aluminum wire.

[0023] (2) The present invention utilizes a gear synchronous linkage structure to make the twisting action of the conical twisting wheel and the wire feeding action of the U-shaped frame and the wire feeding wheel form a constant speed and reverse follow-up relationship, accurately offsetting the reverse rotation torque generated by the single strand of aluminum wire during the twisting process, avoiding the problems of reverse winding, twisting, and accumulation of unprocessed wire; at the same time, through the intermittent engagement of the spring-pressed damping column with the groove of the wire feeding wheel, the wire feeding wheel is always in a controllable damped rotation state, eliminating the defects of excessively fast wire feeding, inertial wire slippage, and sudden loosening and tightening. With the full-process tension adaptive compensation, the entire twisting, feeding, and stranding process is highly coordinated and continuous, effectively reducing problems such as wire breakage, wire jamming, and incomplete stranding during the processing. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings;

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0027] Figure 3 This is a schematic diagram of the cooperation between the twisting assembly and the pressing assembly of the present invention;

[0028] Figure 4 This is a schematic diagram of the conical seat of the present invention;

[0029] Figure 5 This is a schematic diagram of the cooperation between the wire twisting assembly and the wire feeding assembly of the present invention;

[0030] Figure 6 This is a schematic diagram of the wire feeding assembly of the present invention;

[0031] Figure 7 This is a schematic diagram of the pressure wire assembly of the present invention;

[0032] Figure 8 This is a schematic diagram of the pressure plate of the present invention.

[0033] Legend:

[0034] 1. Support; 11. Rotating column; 12. Conical seat; 13. Twisted groove; 14. Tensioner wheel; 15. Tension spring; 16. Wire catcher;

[0035] 2. Conical twisted wheel; 21. Rotating sleeve; 22. Gear one; 23. Gear two;

[0036] 3. Pressure plate; 31. Rotating ring; 32. Pressure roller two; 33. Pressure roller one; 34. Bracket; 35. Support plate; 36. Screw;

[0037] 4. U-shaped frame; 41. Cable reel; 42. Cable conduit; 43. Gear three; 44. Groove; 45. Damping column; 46. Spring. Detailed Implementation

[0038] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figures 1-4 , Figure 7 and Figure 8As shown, traditional stranding equipment only drives the overall rotation and stranding of multiple aluminum wires, lacking an independent and controllable twisting and step-by-step shaping mechanism for each individual aluminum wire. This leads to problems such as over-twisting, under-twisting, uneven torque, large tension fluctuations in the wire, and loose, misaligned, and poorly rounded strands in the finished stranded wires. The following solutions can address these issues:

[0040] This embodiment of an automatic twisting processing device for aluminum stranded wire of cable core includes a support 1, a rotating column 11 rotatably mounted on the support 1, a conical seat 12 fixedly connected to the rotating column 11, and a twisting groove 13 for twisting single strands and assisting in twisting multi-strand strands is opened on the conical surface of the conical seat 12.

[0041] The wire twisting assembly includes a conical twisting wheel 2. An anti-slip layer is installed on the annular outer wall of the conical twisting wheel 2. The anti-slip layer increases the coefficient of friction between the wire and the aluminum single wire, preventing the wire from slipping relative to the wheel surface during twisting operations. This ensures that the conical twisting wheel 2 stably transmits torsional torque to the single aluminum wire, guaranteeing that each single wire receives a stable and effective radial twisting action.

[0042] The wire pressing assembly includes a wire pressing plate 3, on which multiple rotating rings 31 and wire pressing wheels 32 are rotatably mounted. On the rotating rings 31, a wire pressing wheel 33 is rotatably mounted that cooperates with the conical twisting wheel 2 to twist a single strand of wire. The wire pressing wheel 33 achieves adaptive deflection of the angle between the axis of the wire pressing wheel 33 and the long side of the wire pressing plate 3 by relying on the rotating rings 31, thereby realizing automatic bonding to the surface of the aluminum single wire following the direction of the wire, and forming a clamping cooperation with the conical twisting wheel 2 to form a first-level twisting unit.

[0043] The second pressure roller 32 constitutes a rear shaping and limiting unit, forming a graded twisting layout. During processing, the first pressure roller 33 and the second pressure roller 32 cooperate with the twisting groove 13 to clamp the single strand of aluminum wire, completing the clamping and positioning, and providing basic clamping conditions for subsequent independent twisting of the single wire.

[0044] The conical twisting wheel 2 rotates, and the pressure wheel 33 works in tandem to drive multiple single-strand aluminum wires to twist independently, completing the initial twist. Subsequently, the wires are constrained by the pressure wheel 32 and the inner wall of the twisting groove 13, which regulates the already formed twist pitch and limits the continuous twisting of single wires to prevent excessive twisting.

[0045] One end of the conical seat 12 has a cavity communicating with the twisting groove 13. The conical twisting wheel 2 is located in the cavity. A rotating sleeve 21 is rotatably connected to the rotating column 11 and fixedly connected to the conical twisting wheel 2. A gear 1 22 is fixedly installed on the rotating sleeve 21. A motor is installed on the inner wall of the cavity by bolts. A gear 23 that meshes with gear 1 22 is installed on the output shaft of the motor. The motor drives gear 23 to rotate and gear 1 22 to rotate. Gear 1 22 drives the conical twisting wheel 2 to rotate through the rotating sleeve 21, so that its speed can be independently adjusted for radial twisting force control. It does not interfere with the rotation of the conical seat 12, so that the pre-twisting speed of single wire and the stranding speed of multiple strands can be adjusted separately to meet the processing needs of aluminum stranded wire of different specifications.

[0046] The pressure plate 3 and the twisting groove 13 are arranged in parallel. The rotating ring 31 is located between the pressure wheel 32 and the rotating column 11. A bracket 34 is fixedly connected to the rotating column 11. A support plate 35 is fixedly connected to the support 34 at the position corresponding to each twisting groove 13. A screw 36 that is rotatably connected to the pressure plate 3 is threaded onto the support plate 35.

[0047] The position of the pressure plate 3 is adjusted by the screw 36 thread feed method. The clamping gap is flexibly adjusted according to the diameter of the aluminum single wire to ensure that the clamping force is moderate. This will not squeeze or damage the aluminum single wire, and will also prevent the wire clamping from loosening and causing the torsion to fail.

[0048] A tensioning wheel 14 is provided inside the twisting groove 13 and at one end of the conical seat 12 near the rotating column 11. Limiting sliders are rotatably connected to both sides of the tensioning wheel 14. A limiting groove is provided on the inner wall of the twisting groove 13 and is slidably connected to the corresponding limiting slider. A tension spring 15 is fixedly connected between the top of the limiting slider and the limiting groove. The tensioning wheel 14 and the tension spring 15 form an elastic tension compensation mechanism to adaptively compensate for the tension fluctuation of the single strand of aluminum wire in real time.

[0049] When the feeding tension of a single aluminum wire changes, the tensioning wheel 14 slides along the limiting groove, relying on the tension of the tension spring 15 to continuously tighten the single aluminum wire, maintaining a balanced feeding tension. The aluminum wire is fed into the twisting groove 13 from the unloading end, and is first guided and tensioned by the tensioning wheel 14 to ensure that the wire entering the twisting area is always taut. This unifies the feeding amount of each wire strand, and with the graded twisting structure, ensures that the number of twists and pitch of each single aluminum wire are consistent, effectively improving the stranding quality and reducing loose strands and uneven strands.

[0050] A wire gathering ring 16 is fixedly installed on the top of the support 1 by a support rod, and the wire gathering ring 16 is coaxially set with the conical seat 12. The wire gathering ring 16 gathers and guides the multiple aluminum single wires after the single strand is twisted, so that the multiple wires are neatly converged along the same axis, preventing the wires from being misaligned or crossing each other, ensuring that the subsequent multi-strand twisting is uniform, and improving the overall roundness and tightness of the aluminum stranded wire.

[0051] The above structures work together to achieve the following: a graded twisting structure is used, with a conical twisting wheel 2 in conjunction with a pressure wheel 1 33 and a pressure wheel 2 32, to radially twist each single aluminum wire while avoiding torque disorder, local over-twist or under-twist caused by instantaneous twisting.

[0052] Meanwhile, the internal adaptive tensioning wheel 14 of the twisting groove 13, together with the tension spring 15, forms a tension floating compensation structure to offset the fluctuation of wire tension during the unwinding process in real time. This ensures that all single-strand aluminum wires entering the twisting area maintain constant tension and uniform feeding speed, ensuring that the number of twists and pitch height of each wire are consistent. Then, the forming twist shape is further regulated and limited by the second pressure wheel 32 to avoid problems such as loose strands, off-center strands, and disordered twists in the subsequent multi-strand aluminum wire stranding, thereby improving the overall roundness, compactness, and forming consistency of the multi-strand aluminum wire.

[0053] Example 2: Please refer to Figure 5 and Figure 6 As shown, during the twisting operation of single-strand aluminum wire, a reverse rotational torque is generated, which easily causes the unprocessed wire to twist and knot in the opposite direction. Furthermore, the wire exhibits inertial slippage, resulting in inconsistent wire tension. This leads to a mismatch between the twisting and feeding actions, frequently causing wire breakage, jamming, and incomplete twisting. The following solutions can be used to address these issues:

[0054] This embodiment provides an automatic twisting device for aluminum stranded cable cores, which includes all the basic structures of Embodiment 1; it adds a wire feeding assembly linkage structure feature: the wire feeding assembly includes a U-shaped frame 4, on which a wire feeding wheel 41 is rotatably connected, and a conical twisting wheel 2 rotates synchronously with the U-shaped frame 4 to avoid reverse winding of single strands and reduce the subsequent twisting quality.

[0055] A conduit 42, which is rotatably connected to the bracket 34, is fixedly connected to the U-shaped frame 4. A gear 43, which meshes with gear 22, is fixedly connected to the conduit 42. Gear 43 is the same size as gear 22.

[0056] Gear 122 meshes with gear 343 of the same specification to achieve motion transmission with equal speed and opposite rotation direction. The existing twisted wire drive structure is used to synchronously drive the wire feeding assembly, simplifying the overall power system and ensuring precise matching of motion timing.

[0057] During the rotation of the conical twisting wheel 2, the threading tube 42 is driven by gear 1 22 and gear 3 43 to drive the U-shaped frame 4 and the wire feeding wheel 41 to rotate in opposite directions synchronously. The rotation speed and direction of the U-shaped frame 4 match the twisting condition of the single-strand aluminum wire, which counteracts the reverse torque generated by the twisting of the single wire and prevents the wire in the inlet section from twisting, tangling and accumulating.

[0058] The annular outer wall of the wire feeding reel 41 has several grooves 44. A damping post 45 that mates with the grooves 44 is slidably connected to the U-shaped frame 4. A spring 46 is fixedly connected between the damping post 45 and the U-shaped frame 4. The end of the damping post 45 is hemispherical. The damping post 45 at the hemispherical end is used to smoothly enter and exit the grooves 44 to avoid jamming.

[0059] Spring 46 continuously pushes damping post 45 into groove 44, providing stable rotational damping for pay-off reel 41, suppressing inertial free spin of pay-off reel 41, and eliminating inertial slippage problem. When multiple strands of aluminum wire pull pay-off reel 41 to rotate, damping post 45 intermittently engages and disengages with each groove 44 in sequence, continuously maintaining pay-off damping. Together with front tensioning wheel 14 and tension spring 15, it forms a complete tension control system, keeping single strand of aluminum wire taut throughout the process, ensuring coordinated operation of each process of wire feeding, twisting, and stranding.

[0060] The above-mentioned structures work together to achieve a gear linkage structure, which makes the twisting action of the conical twisting wheel 2 and the wire feeding action of the U-shaped frame 4 and the wire feeding wheel 41 form a constant speed and opposite follow-up relationship. This accurately counteracts the reverse rotation torque generated by the single strand of aluminum wire during the twisting process, avoiding the problems of reverse winding, twisting, and accumulation of unprocessed wire. At the same time, the spring 46 presses against the damping column 45 and intermittently engages with the groove 44 of the wire feeding wheel 41, so that the wire feeding wheel 41 is always in a controllable damped rotation state, avoiding problems such as excessively fast wire feeding, inertial wire slippage, and inconsistent tension. With the full-process tension adaptive compensation, the entire twisting, feeding, and stranding process is highly coordinated and continuous, effectively reducing problems such as wire breakage, wire jamming, and incomplete stranding during the processing.

[0061] When the two implementation methods work together, the single-strand independent pre-twisting and shaping, constant tension feeding, and follow-up anti-tangling wire feeding mechanism cooperate with each other to first perform fine twisting and straightening of the single-strand aluminum wire, and then avoid the problem of wire interference at the wire feeding end. This optimizes both the wire forming quality and the stability of continuous equipment operation. Compared with the traditional process of first stranding and then shaping, this device completes the twisting correction of the single-strand wire before stranding and shaping, reducing the residual torsional stress inside the aluminum stranded wire. Long-term use can improve the tensile strength and conductivity stability of the cable.

[0062] Example 3: Please refer to Figures 1-8 As shown, the present invention also proposes an automatic twisting process:

[0063] Step 1: The aluminum wire on the wire feeding wheel 41 enters the twisting groove 13 through the wire threading tube 42, and after being guided by the tension wheel 14, it passes out from the wire gathering ring 16. The screw 36 is rotated to drive the pressure plate 3 to move towards the conical twisting wheel 2. The pressure wheel 32 on the pressure plate 3, together with the twisting groove 13, and the pressure wheel 33 and the conical twisting wheel 2, clamp the single strand of aluminum wire, and then pull the multiple strands of aluminum wire.

[0064] Step 2: The motor drives gear 23 to rotate and gear 22 to rotate. Gear 22 drives the conical twisting wheel 2 to rotate through the rotating sleeve 21. The conical twisting wheel 2, together with the deflectable pressing wheel 33, drives multiple single-strand aluminum wires to rotate synchronously. After passing through the pressing wheel 32 and the inner wall of the twisting groove 13, the twisting pitch formed by the single-strand aluminum wire is uniformized, while preventing the single-strand aluminum wire from being further twisted after twisting, resulting in excessive twisting.

[0065] Step 3: Gear 1 22 engages with gear 3 43, driving the threading tube 42 to rotate in the opposite direction. The threading tube 42 drives the wire feeding wheel 41 to rotate via the U-shaped frame 4. The rotation direction and speed of the U-shaped frame 4 are equal to the rotation direction and speed when the single-strand aluminum wire knob is turned, to avoid the un-twisted single-strand wire rotating in the opposite direction to the single-strand wire knob, which would cause the knob to not be turned in place during operation, affecting the quality of subsequent multi-strand aluminum wire stranding. Then, combined with the rotation of the conical seat 12, the multi-strand twisted aluminum wire is wound around, and combined with the single-strand aluminum wire twisting process, the multi-strand aluminum wire is automatically twisted and stranded.

[0066] Step 4: Under the compression of the spring 46, the damping column 45 abuts against the groove 44 on the wire feeding wheel 41, causing the rotation of the wire feeding wheel 41 to form a damping rotation effect. During the traction of multiple aluminum wires, the single aluminum wire itself has tension, which drives the tension wheel 14 to move towards the rotating column 11 and stretches the tension spring 15 until the wire feeding wheel 41 rotates to feed the single aluminum wire. During the process of the damping column 45 and multiple grooves 44 separating and engaging in sequence, the tension spring 15 exerts a reverse pulling force on the tension wheel 14 to maintain the tension of the single aluminum wire at all times, thereby maintaining a uniform amount of single aluminum wire entering the pressure plate 3, initially ensuring the twisting quality of the single aluminum wire, and the uniformity of the secondary twisting of the pressure wheel 32, thus improving the twisting quality of the aluminum stranded wire.

[0067] 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. An automatic twisting device for aluminum stranded wire in cable cores, characterized in that, Includes a support (1), on which a rotating column (11) is rotatably mounted, and a conical seat (12) is fixedly connected to the rotating column (11), and a twisting groove (13) for single-strand twisting and assisting multi-strand twisting is provided on the conical surface of the conical seat (12). A twisting assembly, comprising a conical twisting wheel (2) having an anti-slip layer installed on the annular outer wall of the conical twisting wheel (2); The wire pressing assembly includes a wire pressing plate (3), on which a plurality of rotating rings (31) and a second wire pressing wheel (32) are rotatably mounted. On the rotating rings (31) a first wire pressing wheel (33) is rotatably mounted to cooperate with the conical twisting wheel (2) and to twist a single strand of wire. The wire feeding assembly includes a U-shaped frame (4), on which a wire feeding wheel (41) is rotatably connected. The conical twisting wheel (2) rotates synchronously with the U-shaped frame (4) to avoid single strands of wire from winding in the opposite direction and reducing the subsequent twisting quality.

2. The automatic twisting device for aluminum stranded cable cores according to claim 1, characterized in that, One end of the conical seat (12) has a cavity that communicates with the twisted groove (13). The conical twisted wheel (2) is located in the cavity. The rotating column (11) is rotatably connected to the rotating sleeve (21) which is fixedly connected to the conical twisted wheel (2). Gear 1 (22) is fixedly installed on the rotating sleeve (21). A motor is installed on the inner wall of the cavity by bolts. Gear 2 (23) that meshes with gear 1 (22) is installed on the output shaft of the motor.

3. The automatic twisting device for aluminum stranded cable cores according to claim 2, characterized in that, The pressure plate (3) is arranged in parallel with the twisting groove (13), and the rotating ring (31) is located between the pressure wheel (32) and the rotating column (11).

4. The automatic twisting device for aluminum stranded cable cores according to claim 3, characterized in that, A bracket (34) is fixedly connected to the rotating column (11). A support plate (35) is fixedly connected to the bracket (34) at the position corresponding to each twist groove (13). A screw (36) that is rotatably connected to the pressure plate (3) is threaded onto the support plate (35).

5. The automatic twisting device for aluminum stranded cable cores according to claim 4, characterized in that, The U-shaped frame (4) is fixedly connected to a conduit (42) that is rotatably connected to the bracket (34). The conduit (42) is fixedly connected to a gear (43) that meshes with gear one (22), and gear three (43) is the same size as gear one (22).

6. The automatic twisting device for aluminum stranded cable cores according to claim 5, characterized in that, The outer wall of the wire feeding reel (41) has several grooves (44), and the U-shaped frame (4) is slidably connected to a damping column (45) that cooperates with the grooves (44). A spring (46) is fixedly connected between the damping column (45) and the U-shaped frame (4). The end of the damping column (45) is a hemispherical structure.

7. The automatic twisting device for aluminum stranded cable cores according to claim 6, characterized in that, A tensioning wheel (14) is provided inside the twisted groove (13) and at one end of the conical seat (12) near the rotating column (11). Limiting sliders are rotatably connected to both sides of the tensioning wheel (14). A limiting groove is provided on the inner wall of the twisted groove (13) and is slidably connected to the corresponding limiting slider. A tension spring (15) is fixedly connected between the top of the limiting slider and the limiting groove.

8. The automatic twisting device for aluminum stranded cable cores according to claim 7, characterized in that, The top of the support (1) is fixedly installed with a wire-gathering ring (16) by a support rod, and the wire-gathering ring (16) is coaxially arranged with the conical seat (12).

9. The automatic twisting device for aluminum stranded cable cores according to claim 8, characterized in that, The steps of automatic wire twisting: Step 1: The aluminum wire on the wire feeding wheel (41) enters the twisting groove (13) through the wire threading tube (42), and after being guided by the tensioning wheel (14), it passes out from the wire gathering ring (16). The screw (36) is rotated to drive the pressure plate (3) to move towards the conical twisting wheel (2). The pressure wheel 2 (32) on the pressure plate (3) is combined with the twisting groove (13), and the pressure wheel 1 (33) and the conical twisting wheel (2) clamp the single strand of aluminum wire, and then pull the multiple strands of aluminum wire. Step 2: The motor drives gear 2 (23) to rotate gear 1 (22). Gear 1 (22) drives the conical twisting wheel (2) to rotate through the rotating sleeve (21). The conical twisting wheel (2) combined with the deflectable pressing wheel 1 (33) drives multiple single-strand aluminum wires to rotate synchronously. After passing through the pressing wheel 2 (32) and the inner wall of the twisting groove (13), the twist pitch formed by the single-strand aluminum wire is uniformized, while avoiding further twisting of the single-strand aluminum wire after twisting, which would result in excessive twisting. Step 3: Gear 1 (22) engages with gear 3 (43), driving the threading tube (42) to rotate in the opposite direction. The threading tube (42) drives the wire feeding wheel (41) to rotate via the U-shaped frame (4). The rotation direction and speed of the U-shaped frame (4) are equal to the rotation direction and speed when the single-strand aluminum wire knob is turned, so as to avoid the un-turned single-strand wire being turned in the opposite direction to the single-strand wire knob, which would cause the knob to not be in place when the knob is operated, affecting the quality of subsequent multi-strand aluminum wire stranding. Then, combined with the rotation of the conical seat (12), the multi-strand twisted aluminum wire is wound around. Combined with the single-strand aluminum wire twisting process, the multi-strand aluminum wire is automatically twisted and stranded.

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