A device for processing copper conductor of power cable

Abstract

The application relates to the technical field of conductor complex twisting processing equipment, and provides a copper conductor complex twisting processing device for power cables, which comprises a rotating main shaft, a base disc, tensioning wheels, a pressing assembly and various adjusting mechanisms; the base disc is provided with movable grooves in the circumferential direction, each sliding base is slidingly arranged in a corresponding movable groove, each tensioning wheel is connected with a corresponding sliding base through a corresponding base block and a corresponding second adjusting mechanism and is used for guiding the conductor of a pre-twisted sub before entering a complex twisting area; the pressing assembly is located on the output path of the complex twisted conductor guided by each tensioning wheel and is used for restraining the complex twisted conductor after convergence; the first adjusting mechanism drives each sliding base to move along the movable groove, and the radial tensioning positions of the multiple tensioning wheels are synchronously adjusted; the second adjusting mechanism is arranged between the sliding base and the base block and is used for driving a single base block to move along the extension direction of the movable groove relative to the sliding base after synchronous adjustment; the first adjusting mechanism is used for forming synchronous radial adjustment of the multiple tensioning wheels, and the second adjusting mechanism is used for forming radial distance adjustment of a single tensioning wheel.

Description

Technical Field

[0001] This application relates to the technical field of conductor stranding equipment, specifically to a copper conductor stranding processing device for power cables, which is suitable for adjusting the tension position of multiple pre-stranded conductors before they enter the stranding area and for radial constraint processing of the stranded conductors after they merge. Background Technology

[0002] In the process of twisting copper conductors or cable conductors, multiple pre-twisted conductors are typically guided into the twisting zone by tensioning rollers. These pre-twisted conductors then converge in the twisting zone and, under subsequent pressing or shaping, form the twisted conductor. The tension position of each pre-twisted conductor before entering the twisting zone affects its path length, wrapping state, and stress state upon entering the twisting zone.

[0003] In existing power cable copper conductor stranding processing equipment, multiple tensioning rollers are typically distributed along a circumferential or annular path, with each roller corresponding to one or a group of pre-stranded conductors. When it is necessary to change the overall tension position of multiple pre-stranded conductors before they enter the stranding area, adjusting each tensioning roller individually can easily lead to deviations in the adjustment references between different rollers, causing the pre-stranded conductors in each path to form different radial support positions before entering the stranding area. If only a unified adjustment structure is set up, it is difficult to adjust the radial distance of the groove center of individual tensioning rollers relative to the axis of rotation of the main shaft after synchronous adjustment.

[0004] On the other hand, when the tensioning wheel, base block, or slide needs to be replaced, cleaned, or maintained, disassembling the adjusted tensioning wheel assembly can easily disrupt the established overall tensioning position relationship. Especially in the re-twisting processing device, multiple tensioning wheels are usually arranged around the rotating spindle. Changes in the installation position of a single tensioning wheel will affect the entry path of the corresponding pre-twisted conductor, causing a shift in the convergence state in the subsequent re-twisting area.

[0005] Therefore, the urgent problem to be solved in the existing technology is: how to enable multiple tensioning wheels to be synchronously radially adjusted with the same structural reference during the copper conductor stranding process, and allow the individual tensioning wheel to adjust the radial distance of the wheel groove center relative to the corresponding slide along the extension direction of the movable groove after synchronous adjustment, so as to reduce the problem of inconsistent tensioning position references of each route caused by individual adjustment. Summary of the Invention

[0006] The main objective of this application is to provide a device for processing copper conductors of power cables to solve the problems in existing devices for processing copper conductors of power cables. Adjusting multiple tensioning wheels one by one can easily lead to inconsistent tensioning position references, and it is not convenient to adjust the radial distance of the groove center of a single tensioning wheel after synchronous adjustment.

[0007] To achieve the above objectives, the technical solution of this application is as follows: A device for processing copper conductors of power cables into stranded conductors includes a rotating spindle, a base plate, slide blocks, base blocks, tensioning rollers, a pressing assembly, a first adjusting mechanism, and a second adjusting mechanism. The base plate is fixedly sleeved on the rotating spindle, and multiple radially extending movable grooves are formed around its circumference. Multiple slide blocks are slidably disposed within corresponding movable grooves. Multiple base blocks are connected to corresponding slide blocks via corresponding second adjusting mechanisms. Multiple tensioning rollers are disposed on corresponding base blocks and are used to guide the pre-stranded conductors before they enter the stranding area. The pressing assembly is disposed on the output path of the stranded conductors after being guided by each tensioning roller and is used to radially constrain the stranded conductors after they converge. The first adjusting mechanism is drivenly connected to each slide block and is used to synchronously adjust the radial tension position of the multiple tensioning rollers by moving each slide block along its corresponding movable groove. The second adjustment mechanism is located between the slide and the base block. After the first adjustment mechanism completes the synchronous adjustment, it drives a single base block to move relative to the corresponding slide block along the extension direction of the movable groove, so as to adjust the radial tension position of the tension wheel on the base block relative to the corresponding slide block.

[0008] Thus, multiple tensioning wheels can first achieve synchronous radial adjustment through the first adjustment mechanism, and then the radial distance between the center of the groove of a single base block and its tensioning wheel can be adjusted through the second adjustment mechanism, so that the overall synchronous adjustment and the single-point radial distance adjustment have their own structural basis.

[0009] Furthermore, the first adjustment mechanism includes a turntable, limiting blocks, and transmission rods. The turntable is rotatably mounted on the rotating main shaft and located on the side of the base plate away from the pressing assembly. Multiple limiting grooves are formed on the circumference of the turntable, extending obliquely from the outer periphery of the turntable towards the axis of the rotating main shaft, with each limiting groove at an angle relative to the extension direction of its corresponding movable groove. Each limiting block is slidably disposed within its corresponding limiting groove, and each transmission rod is disposed along the extension direction of its corresponding movable groove. One end of the transmission rod is rotatably and axially limitedly connected to the corresponding limiting block, and the other end is rotatably and axially limitedly connected to the corresponding slide. When the turntable rotates relative to the base plate, the groove wall of the limiting groove drives the limiting block to move along the limiting groove, and the limiting block, through the transmission rod, drives the corresponding slide to move along the movable groove, causing the multiple tensioning wheels to synchronously adjust their radial positions relative to the rotating main shaft.

[0010] Based on this cooperation, the rotational displacement of the turntable can be converted into the radial movement of multiple slides through the limiting groove, limiting block and transmission rod, providing a unified adjustment reference for multiple tensioning wheels.

[0011] Furthermore, the copper conductor stranding processing device for power cables also includes a locking assembly. The locking assembly includes a connecting block and a first positioning rod. The connecting block is located between the base block and the slide block, and is relatively movable to the base block along the extension direction of the corresponding movable groove. As an intermediate mounting component between the base block and the slide block, the slide block has a groove on its side facing the base block that engages with the connecting block. The first positioning rod is elastically inserted into the inner wall of the groove, and the side wall of the connecting block has a first positioning hole that engages with the first positioning rod.

[0012] In this way, the connecting block can be plugged into the slide and locked by the first positioning rod and the first positioning hole, so that the tensioning wheel, the base block and the slide have a detachable connection base.

[0013] Furthermore, a receiving hole is provided on the inner wall of the groove, and the first positioning rod is inserted into the receiving hole. A first spring is provided between the end of the first positioning rod away from the first positioning hole and the corresponding hole wall of the receiving hole.

[0014] Thus, the first spring can provide an elastic force to the first positioning rod toward the first positioning hole, so that the first positioning rod enters the first positioning hole after the connecting block is inserted into the groove, thereby maintaining the locked state between the connecting block and the slide.

[0015] Furthermore, the copper conductor stranding processing device for power cables also includes an unlocking assembly. The unlocking assembly includes a limiting plate and a push rod. The limiting plate is disposed on the side wall of the movable groove near the rotating spindle, and a pressure-applying ramp is formed at the end of the limiting plate away from this side wall. The push rod is movably inserted into the slide block, and a sloping groove is formed on the first positioning rod. One end of the push rod can slide and press against the pressure-applying ramp, and the other end can slide and press against the sloping groove. The sloping groove is inclined relative to both the movement direction of the push rod and the movement direction of the first positioning rod, so as to convert the axial movement of the push rod into the movement of the first positioning rod exiting the first positioning hole.

[0016] With this structure, when the slide moves along the movable groove toward the rotating main shaft to the position where the push rod contacts the pressure ramp and is pushed by the pressure ramp, the push rod can be driven by the pressure ramp and squeeze the inclined groove, so that the first positioning rod generates a displacement basis to exit the first positioning hole.

[0017] Furthermore, a second spring is fitted on the outer side of the push rod. One end of the second spring abuts against the slide block, and the other end abuts against the push rod, applying a restoring elastic force to the push rod to move it away from the inclined groove. When the slide block moves along the movable groove toward the rotating main shaft to the position where the push rod contacts the pressure slope, the push rod is pushed by the pressure slope and squeezes the inclined groove, causing the first positioning rod to exit the first positioning hole.

[0018] In this way, the push rod can be maintained in its initial position by the second spring when it is not squeezed by the pressure slope; after the slide moves to the position where the push rod contacts the pressure slope and the first positioning rod exits the radial end of the first positioning hole, the push rod triggers the first positioning rod to exit the first positioning hole, so that the unlocking action corresponds to the radial position of the slide.

[0019] Furthermore, the second adjusting mechanism includes a rotating drum, a screw, and a telescopic rod. The rotating drum is rotatably inserted into the connecting block, and its axis is set along the extension direction of the corresponding movable groove. One end of the screw is connected to the base block, and the other end is threaded into the rotating drum. The telescopic rod is disposed between the connecting block and the base block and is used to limit the base block from rotating with the rotating drum.

[0020] Therefore, when the drum rotates, the base block can be driven to move along the extension direction of the movable groove through the threaded engagement with the screw; the telescopic rod restricts the base block from rotating with the drum, so that the rotational displacement of the drum is converted into the linear position change of the base block.

[0021] Furthermore, the second adjustment mechanism also includes a drive assembly. The drive assembly includes a second connecting rod, a second bevel gear, a first bevel gear, a first connecting rod, and a locking rod. The second connecting rod is coaxially and fixedly connected to the corresponding transmission rod. The second bevel gear is disposed on the second connecting rod, and the first bevel gear meshes with the second bevel gear. One end of the first connecting rod is connected to the first bevel gear, and the locking rod is connected to the other end of the first connecting rod. A locking hole is provided at the end of the rotating drum away from the screw, which engages with the locking rod; when the connecting block is inserted into the groove, the locking rod extends into the locking hole and forms a circumferential limiting engagement with the locking hole.

[0022] Based on this drive assembly, in addition to transmitting the synchronous radial adjustment displacement of the first adjustment mechanism, the transmission rod can also serve as a rotary input component corresponding to the second adjustment mechanism, thereby providing a force transmission path for the position adjustment of a single tensioning wheel.

[0023] Furthermore, both the clamp rod and the clamp hole have rectangular cross-sections.

[0024] In this way, the clamp rod can transmit torque after engaging with the clamp hole, reducing the possibility of the clamp rod spinning freely relative to the clamp hole, and providing a form fit basis for the rotation input of the drum.

[0025] Furthermore, the copper conductor stranding processing device for power cables also includes a positioning assembly. The positioning assembly includes a positioning ring, a second positioning rod, and a third spring. The positioning ring is sleeved and fixed to the outside of the transmission rod, and the second positioning rod is telescopically inserted into the axial side of the positioning ring along the axial direction of the transmission rod. A limiting block has multiple second positioning holes circumferentially formed around the transmission rod on the side facing the positioning ring. The third spring is positioned between the positioning ring and the second positioning rod, applying an elastic force towards the second positioning holes to the second positioning rod. The second positioning holes are used for engaging with the second positioning rod.

[0026] In this way, after the transmission rod rotates to the angle where the second positioning rod and one of the second positioning holes are opposite each other along the axis of the transmission rod, the second positioning rod can enter the corresponding second positioning hole, thus constraining the rotational position of the transmission rod relative to the limiting block; when the transmission rod continues to be applied with rotational input, the second positioning rod can overcome the elastic force of the third spring under the action of the edge of the second positioning hole and exit the second positioning hole, thereby allowing the transmission rod to continue to rotate and be repositioned.

[0027] Furthermore, a toothed ring is fixedly fitted onto the outer periphery of the turntable, and a fixed plate is fixed on the base plate. A locking rod is movably inserted into the fixed plate along the radial direction of the toothed ring, and one end of the locking rod can be inserted into the positioning gap between adjacent teeth of the toothed ring. With this structure, the rotational position of the turntable after synchronous adjustment can be limited by the locking rod and the toothed ring.

[0028] Furthermore, a guide groove is formed in the wall of the movable groove along its extension direction, and a guide block is disposed on the side wall of the slide and slidably engaged within the guide groove. Through the cooperation of the guide block and the guide groove, the sway of the slide when it moves along the movable groove can be limited.

[0029] The beneficial effects of this application are reflected in:

[0030] This application arranges multiple tensioning rollers on corresponding base blocks, and each base block is mounted on a slide block that can move along a movable groove. A first adjustment mechanism drives the multiple slide blocks to move synchronously along their respective movable grooves. Based on this structure, the multiple tensioning rollers can change their radial position around the main axis of rotation according to the same adjustment reference, reducing the problem of inconsistent tensioning position references for the pre-twisted conductors of each route when adjusting the tensioning rollers individually. This ensures that the center of the groove of each tensioning roller is located in a radial position determined by the same rotation angle of the turntable.

[0031] This application provides a second adjustment mechanism between the slide and the base block, so that after the first adjustment mechanism completes synchronous adjustment, a single base block can still move relative to the corresponding slide along the extension direction of the movable groove. In this way, when the path of an individual pre-twisted conductor needs to be adjusted, it is not necessary to change the position of all slides. The radial distance of the center of the groove of the tensioning wheel relative to the axis of the rotating spindle can be adjusted based on the established overall tensioning position relationship.

[0032] This application forms a detachable locking structure between the connecting block and the slide by means of a connecting block, a groove, a first positioning rod, and a first positioning hole, and forms an unlocking structure by means of a limiting plate, a pressure ramp, a top rod, and a groove. Thus, the connecting block is only unlocked when the slide moves to the position where the top rod contacts the pressure ramp and the first positioning rod exits the first positioning hole, reducing the possibility of the base block and its tensioning wheel being accidentally disassembled in the normal tension adjustment position.

[0033] This application utilizes a second connecting rod, a second bevel gear, a first bevel gear, a first connecting rod, and a locking rod, all coaxially and fixedly connected to the transmission rod, to drive the rotating drum to rotate. The rotating drum, in turn, moves the base block through the threaded engagement between itself and the screw. Thus, the rotational input of the transmission rod can be transmitted to the rotating drum via the drive assembly, eliminating the need for a separate rotational input component on the outside of the base block for the second adjustment mechanism. Attached Figure Description

[0034] In the attached diagram:

[0035] Figure 1 This is a three-dimensional structural schematic diagram of the power cable copper conductor stranding processing device of this application;

[0036] Figure 2 for Figure 1 A schematic diagram of the structure when the base plate and turntable are installed on the rotating spindle, at which time the tensioning wheel is in a centrifugal position in the movable groove;

[0037] Figure 3 for Figure 2 Schematic diagram of the central base plate;

[0038] Figure 4 for Figure 2 A schematic diagram of the structure of the turntable facing the base plate;

[0039] Figure 5 for Figure 1 A schematic diagram of the structure in another state when the base plate and turntable are installed on the rotating spindle, in which the tensioning wheel is in the centripetal position in the movable groove;

[0040] Figure 6 for Figure 5 A partial cross-sectional structural diagram of the tensioning wheel, slide block, and base block on the base plate;

[0041] Figure 7 for Figure 5 A schematic diagram of a partial structure of the central base plate;

[0042] Figure 8 for Figure 2 A partial cross-sectional view of the connecting block of the middle base block in a locked position on the slide, at which point the top rod is located outside the inclined groove;

[0043] Figure 9 for Figure 8 Enlarged structural diagram at point A;

[0044] Figure 10 for Figure 2 A partial cross-sectional view of the structure when the top rod of the middle slide block and the pressure slope are not in contact;

[0045] Figure 11 for Figure 5A partial cross-sectional view of the sliding block moving toward the rotating spindle causes the push rod to contact the pressure slope and move to squeeze the inclined groove. At this time, the first positioning rod disengages from the first positioning hole.

[0046] Figure 12 A partial cross-sectional view of the connecting block and the slide block in a separable state after the first positioning rod exits the first positioning hole;

[0047] Figure 13 This is a partial cross-sectional structural diagram of the connecting block, rotating cylinder, screw, and base block in the state where they are not inserted into the slide groove;

[0048] Figure 14 for Figure 13 A partial cross-sectional view of the connecting block in the installation state, and after the rotating drum rotates, it engages with the screw thread, allowing for individual adjustment of the position of the corresponding tension wheel on the base block under the limit of the telescopic rod;

[0049] Figure 15 for Figure 4 A schematic diagram of the positioning ring, the second positioning rod, and the third spring on the central transmission rod.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1. Rotary spindle; 2. Base plate; 3. Tensioner wheel; 4. Slide; 5. Base block; 6. Movable groove; 7. Turntable; 8. Limiting block; 9. Limiting groove; 10. Transmission rod; 11. Gear ring; 12. Locking rod; 13. Fixed plate; 14. First positioning rod; 15. First positioning hole; 16. Groove; 17. Receiving hole; 18. First spring; 19. Push rod; 20. Second spring; 21. Inclined groove; 22. 23. Limiting plate; 24. Pressure ramp; 25. Connecting block; 26. Rotary drum; 27. Screw; 28. Telescopic rod; 29. ​​Locking hole; 30. Locking rod; 31. First connecting rod; 32. First bevel tooth; 33. Second connecting rod; 34. Second bevel tooth; 35. Positioning ring; 36. Second positioning rod; 37. Second positioning hole; 38. Guide block; 39. Third spring; 40. Guide groove; 41. Pressing assembly. Detailed Implementation

[0052] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. Unless otherwise specified, the embodiments and features described in the present application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0053] like Figures 1 to 15As shown in the embodiment of this application, a copper conductor stranding processing device for power cables is provided, including a rotating spindle 1, a base plate 2, multiple tensioning wheels 3, multiple slides 4, multiple base blocks 5, a first adjustment mechanism, a second adjustment mechanism, a locking component, an unlocking component, a positioning component, and a pressing component 40.

[0054] The rotating spindle 1 supports the base plate 2 and the turntable 7, and serves as the mounting reference for the circumferentially arranged tensioning wheels 3 in the power cable copper conductor stranding processing device. The base plate 2 is fixedly sleeved on the rotating spindle 1, and multiple radially extending movable grooves 6 are formed on the circumference of the base plate 2. The term "radial" as used herein refers to the direction centered on the axis of the rotating spindle 1, pointing from the axis to the outer periphery of the base plate 2, or from the outer periphery of the base plate 2 to the axis.

[0055] Each movable slot 6 has a sliding block 4 slidably mounted therein. The sliding block 4 can move relative to the base plate 2 along the extension direction of the movable slot 6. The side of each sliding block 4 away from the rotating main shaft 1 is connected to a corresponding base block 5 through a corresponding second adjustment mechanism, and the side of each base block 5 away from the corresponding sliding block 4 is connected to a corresponding tensioning wheel 3. The tensioning wheel 3 is used to guide the pre-twisted conductor before entering the twisting area, so that the pre-twisted conductor passes through the corresponding tensioning wheel 3 to form a radial support path before entering the twisting area. The radial tensioning position referred to in this article refers to the radial distance position of the center of the groove of the tensioning wheel 3 relative to the axis of the rotating main shaft 1.

[0056] The pressing assembly 40 is located on the lead-out side of the tensioning roller 3 and is positioned after the convergence point of multiple pre-twisted conductors along the output path of the twisted conductor. The lead-out side, as referred to herein, means the side of the pre-twisted conductor facing the twisted area or the output direction of the twisted conductor after passing through the tensioning roller 3. In one embodiment, the pressing assembly 40 includes a pressing base and a pressing member disposed on the pressing base, with a radial constraint channel formed in the pressing member for the twisted conductor to pass through. The channel axis of the radial constraint channel is aligned with the output direction of the twisted conductor, and the inner circumferential surface of the radial constraint channel is used to contact or limit the gap with the outer circumference of the converged twisted conductor. After being guided by each tensioning roller 3, the multiple pre-twisted conductors converge in the twisted area to form a twisted conductor, which then enters the radial constraint channel of the pressing assembly 40 to limit the outer circumferential expansion of the converged twisted conductor. The specific pressing structure of the pressing assembly 40 can be a pressing ring, a pressing mold, or a pressing roller assembly, depending on the specifications of the twisted conductor.

[0057] In one embodiment, to limit the slide 4 from swaying within the movable groove 6, a guide groove 39 is formed in the groove wall of the movable groove 6 along its extension direction, and a guide block 37 is disposed on the side wall of the slide 4 and slidably engaged in the guide groove 39. Through the cooperation of the guide block 37 and the guide groove 39, when the slide 4 moves along the extension direction of the movable groove 6, its movement path is restricted by the guide groove 39.

[0058] In one embodiment, a first adjusting mechanism is used to synchronously adjust the radial tension positions of multiple tensioning wheels 3. The first adjusting mechanism includes a turntable 7, a limiting block 8, and a transmission rod 10. The turntable 7 is rotatably mounted on the rotating main shaft 1, and the turntable 7 is located on the side of the base plate 2 away from the pressing assembly 40. Multiple limiting grooves 9 are provided on the circumference of the turntable 7, extending obliquely from the outer periphery of the turntable 7 toward the side close to the axis of the rotating main shaft 1, and each limiting groove 9 is set at an angle relative to the extension direction of the corresponding movable groove 6. A limiting block 8 is slidably arranged in each limiting groove 9. Each limiting block 8 corresponds one-to-one with each slide 4, and each transmission rod 10 is arranged along the extension direction of the corresponding movable groove 6. One end of the transmission rod 10 is rotatably and axially limitedly connected to the corresponding limiting block 8, and the other end is rotatably and axially limitedly connected to the corresponding slide 4.

[0059] The transmission rod 10 can form a rotatable support with the slide block 4 through a bearing, bushing or rotating hole, and the transmission rod 10 is limited to the slide block 4 along its own axis; the end of the transmission rod 10 near the limiting block 8 is connected to the limiting block 8 through a rotating joint, so that when the limiting block 8 moves along the limiting groove 9, it can drive the slide block 4 to move along the movable groove 6 through the transmission rod 10, while allowing the transmission rod 10 to rotate around its own axis.

[0060] When it is necessary to synchronously adjust the radial tension position of multiple tensioning rollers 3, the turntable 7 rotates relative to the base plate 2. Since the limiting groove 9 is inclined radially relative to the base plate 2, its groove wall guides the limiting block 8 as the turntable 7 rotates. The limiting block 8 moves along the limiting groove 9 and, through the transmission rod 10, drives the corresponding slide 4 to move along the movable groove 6. Multiple limiting grooves 9 are arranged circumferentially around the turntable 7; therefore, multiple limiting blocks 8 can, with the rotation of the turntable 7, drive multiple slides 4 to move along their respective movable grooves 6, thus enabling synchronous radial position adjustment of the multiple tensioning rollers 3 relative to the rotating main shaft 1.

[0061] When the tensioning wheel 3 is in the centrifugal position of the movable groove 6, the radial support position of the corresponding pre-twisted conductor is away from the rotating main shaft 1; when the tensioning wheel 3 moves with the slide 4 toward the rotating main shaft 1 to the centripetal position of the movable groove 6, the radial support position of the corresponding pre-twisted conductor is closer to the rotating main shaft 1. Multiple tensioning wheels 3 can be changed in radial support position with a single rotation of the turntable 7, avoiding the need for individual basic position adjustments to each tensioning wheel 3.

[0062] In one embodiment, a toothed ring 11 can be fitted and fixed to the outer periphery of the turntable 7, and a fixed plate 13 is fixed on the base plate 2. A locking rod 12 is radially insertable and detachable from the fixed plate 13 along the toothed ring 11. A positioning gap is formed between two adjacent teeth of the toothed ring 11. When the locking rod 12 is inserted into the positioning gap, it restricts the rotation of the turntable 7; when the locking rod 12 is removed from the positioning gap, it allows the turntable 7 to rotate relative to the base plate 2. After the turntable 7 completes synchronous adjustment, the locking rod 12 engages with the corresponding positioning gap of the toothed ring 11, thereby restricting the rotational position of the turntable 7 relative to the base plate 2. This structure can serve as an optional locking structure after the turntable 7 has completed coarse adjustment.

[0063] In one embodiment, a locking assembly is used to lock the connecting block 24 to the slide 4, so that the connecting block 24 serves as an installation reference for the base block 5 to be individually positioned relative to the slide 4. The locking assembly includes the connecting block 24 and a first positioning rod 14. The connecting block 24 is located between the base block 5 and the slide 4, and is movably connected to the base block 5 along the extension direction of the corresponding movable groove 6. The connecting block 24 is used to engage and lock with the groove 16 of the slide 4. The base block 5 is connected to the connecting block 24 through a second adjustment mechanism and can move relative to the connecting block 24 along the extension direction of the movable groove 6. The slide 4 has a groove 16 on the side facing the base block 5, and the groove 16 engages with the connecting block 24. The first positioning rod 14 is elastically inserted into the inner sidewall of the groove 16, and the sidewall of the connecting block 24 has a first positioning hole 15. After the connecting block 24 is inserted into the groove 16, the first positioning rod 14 is engaged in the first positioning hole 15 under elastic action, thereby forming a position lock between the connecting block 24 and the slide 4.

[0064] Furthermore, a receiving hole 17 is provided on the inner wall of the groove 16, and the first positioning rod 14 is inserted into the receiving hole 17. A first spring 18 is provided between the end of the first positioning rod 14 away from the first positioning hole 15 and the corresponding hole wall of the receiving hole 17. One end of the first spring 18 abuts against the first positioning rod 14, and the other end abuts against the hole wall of the receiving hole 17. The first spring 18 applies an elastic force to the first positioning rod 14 toward the first positioning hole 15. When the connecting block 24 is inserted into the groove 16 and the first positioning hole 15 is opposite to the first positioning rod 14, the first positioning rod 14 enters the first positioning hole 15 under the action of the first spring 18.

[0065] The moving direction of the first positioning rod 14 intersects with the moving direction of the slide block 4 along the movable groove 6, preferably perpendicularly. In this way, after the first positioning rod 14 enters the first positioning hole 15, it can restrict the connecting block 24 from disengaging from the slide block 4 along the insertion and removal direction of the groove 16, so that the base block 5 is kept in the installation state relative to the slide block 4.

[0066] In one embodiment, the unlocking component is used to release the locking component from locking the position of the connecting block 24 relative to the slide block 4. The unlocking component includes a limiting plate 22 and a push rod 19. The limiting plate 22 is disposed on the side wall of the movable groove 6 near the rotating spindle 1, and a pressure ramp 23 is formed at the end of the limiting plate 22 away from this side wall. The push rod 19 is movably inserted into the slide block 4, and a groove 21 is formed on the first positioning rod 14. One end of the push rod 19 can slide and press against the pressure ramp 23, and the other end can slide and press against the groove 21. The groove 21 is inclined relative to the movement direction of the push rod 19 and the movement direction of the first positioning rod 14, so as to convert the movement of the push rod 19 along its own axial direction into the movement of the first positioning rod 14 out of the first positioning hole 15.

[0067] A second spring 20 is sleeved on the outer side of the push rod 19. One end of the second spring 20 abuts against the slide block 4, and the other end abuts against the push rod 19, applying a restoring elastic force to the push rod 19 to move it away from the inclined groove 21. The second spring 20 is used to keep the push rod 19 in a position where it has not pushed the first positioning rod 14 out of the first positioning hole 15 when it is not pressed by the pressure slope 23. The direction of movement of the push rod 19 intersects with the direction of movement of the first positioning rod 14, preferably perpendicular to it.

[0068] When the slide block 4 does not move along the movable groove 6 to the position where the push rod 19 contacts the pressure slope 23 and is pushed by the pressure slope 23, the push rod 19 does not contact the pressure slope 23. At this time, the push rod 19 does not apply pressure to the groove 21, and the first positioning rod 14 can remain locked in the first positioning hole 15.

[0069] When the slide block 4 moves along the movable groove 6 toward the rotating spindle 1 to the position where the push rod 19 contacts the pressure slope 23, the pressure slope 23 exerts a squeezing effect on one end of the push rod 19, causing the push rod 19 to move along its own axial direction. The other end of the push rod 19 squeezes the inclined groove 21 on the first positioning rod 14, and the inclined groove 21 converts the movement of the push rod 19 into the movement of the first positioning rod 14 retracting from the first positioning hole 15. After the first positioning rod 14 retracts from the first positioning hole 15, the connecting block 24 can be disengaged from the groove 16, and the base block 5 and its tensioning wheel 3 can be removed relative to the slide block 4.

[0070] In one embodiment, the second adjusting mechanism is used to adjust the radial tension position of a single tensioning wheel 3 relative to its corresponding slide block 4 after the first adjusting mechanism has completed the synchronous position adjustment of multiple tensioning wheels 3. The second adjusting mechanism includes a rotating drum 25, a screw 26, and a telescopic rod 27. The rotating drum 25 is rotatably inserted into the connecting block 24, and the axis of the rotating drum 25 is arranged along the extension direction of the corresponding movable groove 6. One end of the screw 26 is connected to the base block 5, and the other end is threadedly engaged with the rotating drum 25. The telescopic rod 27 is disposed between the connecting block 24 and the base block 5.

[0071] One end of the telescopic rod 27 is connected to the connecting block 24, and the other end is connected to the base block 5. The telescopic rod 27 can extend and retract along the extension direction of the movable groove 6 and is used to restrict the base block 5 from rotating with the rotating drum 25. There are at least two telescopic rods 27, which are spaced apart along the extension direction perpendicular to the movable groove 6 to restrict the base block 5 from rotating with the rotating drum 25. When the rotating drum 25 rotates relative to the connecting block 24, a threaded drive is generated between the rotating drum 25 and the screw 26; since the telescopic rod 27 restricts the rotation of the base block 5, the screw 26 drives the base block 5 to move along the axial direction of the rotating drum 25. When the base block 5 moves, the tension wheel 3 provided on the base block 5 changes its position relative to the slide 4 along the extension direction of the movable groove 6.

[0072] In one embodiment, the second adjusting mechanism further includes a drive assembly. The drive assembly includes a second connecting rod 32, a second bevel gear 33, a first bevel gear 31, a first connecting rod 30, and a locking rod 29. The second connecting rod 32 is coaxially and fixedly connected to the corresponding transmission rod 10, and the second bevel gear 33 is disposed on the second connecting rod 32. The first bevel gear 31 meshes with the second bevel gear 33, one end of the first connecting rod 30 is connected to the first bevel gear 31, and the locking rod 29 is connected to the other end of the first connecting rod 30.

[0073] A through hole is provided on the slide 4 for the first connecting rod 30 to pass through, and the first connecting rod 30 rotates in the through hole. A gear mounting cavity is formed inside the slide 4, which communicates with the through hole of the first connecting rod 30. The first bevel tooth 31 and the second bevel tooth 33 are located in the gear mounting cavity. The second connecting rod 32 is coaxially and fixedly connected to a section of the transmission rod 10 near the slide 4. A retaining hole 28 is provided at the end of the rotating cylinder 25 away from the screw 26. With the connecting block 24 inserted into the groove 16, the retaining rod 29 extends into the retaining hole 28 and forms a circumferential limiting fit with the retaining hole 28. The cross-sections of both the retaining rod 29 and the retaining hole 28 are rectangular, so that the retaining rod 29 can transmit torque through the form fit after being inserted into the retaining hole 28. When the connecting block 24 is inserted into the groove 16 and locked by the first positioning rod 14, the locking hole 28 on the rotating drum 25 and the locking rod 29 are opposite each other along the extension direction of the movable groove 6, and the locking rod 29 extends into the locking hole 28; when the first positioning rod 14 exits the first positioning hole 15 and the connecting block 24 comes out along the groove 16, the locking hole 28 moves away from the locking rod 29 along with the connecting block 24, so that the locking rod 29 separates from the locking hole 28.

[0074] When the position of a single tensioning wheel 3 needs to be adjusted, the end of the transmission rod 10 near the limiting block 8 passes through or extends from the side of the limiting block 8 away from the slide 4, forming an operating end for a wrench, knob, or drive tool. The corresponding transmission rod 10 is rotated through this operating end. The transmission rod 10 drives the coaxially fixed second connecting rod 32 to rotate, and the second connecting rod 32 drives the second bevel gear 33 to rotate. The second bevel gear 33 meshes with the first bevel gear 31, causing the first bevel gear 31 to drive the first connecting rod 30 to rotate. The first connecting rod 30 drives the locking rod 29 to rotate, and the locking rod 29 drives the rotating drum 25 to rotate through the locking hole 28. A threaded transmission is generated between the rotating drum 25 and the screw 26, thereby driving the base block 5 and its tensioning wheel 3 to move along the extension direction of the movable groove 6.

[0075] Through this force transmission path, the transmission rod 10 is used in the first adjustment mechanism to transmit the movement of the limiting block 8 to the slide block 4; in the second adjustment mechanism, the transmission rod 10 also serves as a rotary input component, driving the rotating drum 25 to rotate via the drive assembly. Thus, the rotary input of the transmission rod 10 can be transmitted to the rotating drum 25 via the drive assembly, eliminating the need for a separate rotary input component outside the base block 5 in the second adjustment mechanism.

[0076] In one embodiment, a positioning assembly is used to limit the rotational position of the transmission rod 10 after adjustment. The positioning assembly includes a positioning ring 34, a second positioning rod 35, and a third spring 38. The positioning ring 34 is sleeved and fixed to the outside of the transmission rod 10, and the second positioning rod 35 is telescopically inserted into the axial side of the positioning ring 34 along the axial direction of the transmission rod 10. A plurality of second positioning holes 36 are circumferentially formed around the transmission rod 10 on the side of the limiting block 8 facing the positioning ring 34. The third spring 38 is disposed between the positioning ring 34 and the second positioning rod 35, and applies an elastic force toward the second positioning rod 35 toward the second positioning holes 36. The second positioning holes 36 are used for engaging with the second positioning rod 35.

[0077] When the transmission rod 10 rotates, the positioning ring 34 rotates with the transmission rod 10. After the transmission rod 10 rotates to an angle where the second positioning rod 35 and one of the second positioning holes 36 are opposite each other along the axial direction of the transmission rod 10, the second positioning rod 35 enters the corresponding second positioning hole 36 under the action of the third spring 38, thus restricting the circumferential position of the positioning ring 34 relative to the limiting block 8, thereby restricting the transmission rod 10 from continuing to rotate. The end of the second positioning rod 35 facing the second positioning hole 36 forms an arc-shaped guide end or a tapered guide end, and / or the opening of the second positioning hole 36 forms a chamfered guide surface, so as to guide the second positioning rod 35 out of the second positioning hole 36 when the transmission rod 10 is subjected to rotational input. When rotational input is continued to be applied to the transmission rod 10, the second positioning rod 35 can overcome the elastic force of the third spring 38 under the action of the edge of the second positioning hole 36 and exit the second positioning hole 36, thereby allowing the transmission rod 10 to continue to rotate and re-enter the other second positioning hole 36. Since the transmission rod 10 is connected to the rotating drum 25 via the drive assembly, the adjustment position between the rotating drum 25 and the screw 26 is also maintained after the rotation position of the transmission rod 10 is restricted.

[0078] The working process for this application is as follows:

[0079] When it is necessary to adjust the radial position of multiple tensioning rollers 3 synchronously, the turntable 7 rotates relative to the base plate 2. The limiting groove 9 on the turntable 7 guides the limiting block 8, causing the limiting block 8 to move along the limiting groove 9. The limiting block 8 drives the corresponding slide 4 to move along the movable groove 6 via the transmission rod 10. Each slide 4 drives the corresponding base block 5 and tensioning roller 3 to move along the movable groove 6, thereby causing the multiple tensioning rollers 3 to produce synchronous radial position changes with the rotating main shaft 1 as the reference.

[0080] After synchronization adjustment, if the tensioning wheel 3 corresponding to a certain pre-twisted conductor still needs individual radial distance adjustment, the transmission rod 10 is rotated through the operating end of the transmission rod 10 corresponding to the tensioning wheel 3. The transmission rod 10 drives the second connecting rod 32, the second bevel tooth 33, the first bevel tooth 31, the first connecting rod 30, and the locking rod 29 to rotate. The locking rod 29 drives the rotating drum 25 to rotate through the locking hole 28. The rotating drum 25 is threadedly engaged with the screw 26, and under the condition that the base block 5 is restricted from rotating by the telescopic rod 27, the base block 5 moves relative to the connecting block 24 and the slide 4 along the extension direction of the movable groove 6, thereby changing the radial tension position of the tensioning wheel 3 on the base block 5 relative to the slide 4.

[0081] When it is necessary to remove the base block 5 and its tensioning wheel 3, the corresponding slide 4 can be moved along the movable groove 6 toward the rotating main shaft 1 via the first adjustment mechanism. When the slide 4 moves to the position where the push rod 19 contacts the pressure slope 23, the push rod 19 is pushed by the pressure slope 23 and presses against the inclined groove 21 on the first positioning rod 14, causing the first positioning rod 14 to exit the first positioning hole 15 on the connecting block 24. At this time, the locking state between the connecting block 24 and the groove 16 is released, and the base block 5 can be removed from the slide 4.

[0082] Multiple pre-twisted conductors, guided by tensioning rollers 3, enter the twisting area and converge. The converged twisted conductors then enter the pressing assembly 40, which is located on the output path of the twisted conductors after each tensioning roller 3. The pressing assembly 40 forms a radial constraint on the twisted conductors, ensuring that the twisted conductors undergo peripheral constraint treatment before output.

[0083] The above description is merely an embodiment of this application and is not intended to limit this application. Those skilled in the art can make various changes or substitutions without departing from the concept of this application, and all such changes or substitutions should fall within the protection scope of this application.

Claims

1. A device for processing copper conductors of power cables into stranded strands, characterized in that, It includes: Rotating spindle (1); The base plate (2) is fixedly sleeved on the rotating spindle (1), and the base plate (2) has multiple radially extending movable grooves (6) circumferentially. Multiple slide blocks (4) are slidably disposed in corresponding movable slots (6); The base block (5) has multiple components, each connected to a corresponding slide (4) via a corresponding second adjustment mechanism; Tensioning wheels (3), which have multiple ones, are respectively set on the corresponding base blocks (5) and are used to guide the pre-twisted conductors before entering the twisted area; The pressing assembly (40) is located on the output path of the twisted conductor after each tensioning wheel (3) is guided, and is used to radially constrain the twisted conductor after it is joined. The first adjustment mechanism is connected to each slide (4) for driving each slide (4) to move along the corresponding movable groove (6) and simultaneously adjust the radial tension position of multiple tensioning wheels (3); The second adjustment mechanism is located between the slide (4) and the base block (5). After the first adjustment mechanism completes the synchronous adjustment, it drives a single base block (5) to move relative to the corresponding slide (4) along the extension direction of the movable groove (6) to adjust the radial tension position of the tension wheel (3) on the base block (5) relative to the corresponding slide (4).

2. The power cable copper conductor re-stranding processing device as described in claim 1, characterized in that, The first adjustment mechanism includes a turntable (7), a limiting block (8), and a transmission rod (10). The turntable (7) is rotatably sleeved on the rotating main shaft (1) and located on the side of the base plate (2) away from the pressing assembly (40). Multiple limiting grooves (9) are provided on the circumference of the turntable (7) extending obliquely from the outer periphery of the turntable (7) towards the axis of the rotating main shaft (1). Each limiting groove (9) is set at an angle relative to the extending direction of the corresponding movable groove (6). Each limiting block (8) is slidably disposed within the corresponding limiting groove (9). Each transmission rod ( 10) The transmission rod (10) is set along the extension direction of the corresponding movable groove (6). One end of the transmission rod (10) is rotatably and axially limited to the corresponding limiting block (8), and the other end is rotatably and axially limited to the corresponding slide (4). When the turntable (7) rotates relative to the base plate (2), the groove wall of the limiting groove (9) drives the limiting block (8) to move along the limiting groove (9). The limiting block (8) drives the corresponding slide (4) to move along the movable groove (6) through the transmission rod (10), so that the multiple tensioning wheels (3) generate synchronous radial position adjustment relative to the rotating main shaft (1).

3. The device for processing copper conductors of power cables by stranding as described in claim 2, characterized in that, The power cable copper conductor stranding processing device also includes a locking assembly, which includes a connecting block (24) and a first positioning rod (14). The connecting block (24) is located between the base block (5) and the slide (4) and is relatively movable to the base block (5) along the extension direction of the corresponding movable groove (6). The slide (4) has a groove (16) on the side facing the base block (5) that is engaged with the connecting block (24). The first positioning rod (14) is elastically inserted into the inner side wall of the groove (16). The side wall of the connecting block (24) has a first positioning hole (15) that is engaged with the first positioning rod (14).

4. The power cable copper conductor re-stranding processing device as described in claim 3, characterized in that, The inner wall of the groove (16) is provided with a receiving hole (17), and the first positioning rod (14) is inserted into the receiving hole (17). A first spring (18) is provided between the end of the first positioning rod (14) away from the first positioning hole (15) and the corresponding hole wall of the receiving hole (17).

5. The device for processing copper conductors of power cables by stranding as described in claim 3, characterized in that, The power cable copper conductor stranding processing device also includes an unlocking component, which includes a limiting plate (22) and a top rod (19). The limiting plate (22) is set on the side wall of the movable groove (6) near the rotating spindle (1). A pressure slope (23) is formed at the end of the limiting plate (22) away from the side wall. The top rod (19) is movably inserted into the slide (4). A groove (21) is provided on the first positioning rod (14). One end of the top rod (19) can slide and press against the pressure slope (23), and the other end can slide and press against the groove (21). The groove (21) is inclined relative to the moving direction of the top rod (19) and the moving direction of the first positioning rod (14) so ​​as to convert the movement of the top rod (19) along its own axis into the movement of the first positioning rod (14) exiting the first positioning hole (15).

6. The power cable copper conductor re-stranding processing device as described in claim 5, characterized in that, A second spring (20) is sleeved on the outside of the top rod (19). One end of the second spring (20) abuts against the slide (4) and the other end abuts against the top rod (19), and applies a restoring elastic force to the top rod (19) to move it away from the inclined groove (21). When the slide (4) moves along the movable groove (6) toward the rotating main shaft (1) to the position where the top rod (19) contacts the pressure slope (23), the top rod (19) is pushed by the pressure slope (23) and squeezes the inclined groove (21), causing the first positioning rod (14) to exit the first positioning hole (15).

7. The device for processing copper conductors of power cables by stranding as described in claim 3, characterized in that, The second adjustment mechanism includes a rotating drum (25), a screw (26), and a telescopic rod (27). The rotating drum (25) is rotatably inserted into the connecting block (24), and the axis of the rotating drum (25) is set along the extension direction of the corresponding movable groove (6). One end of the screw (26) is connected to the base block (5), and the other end is threadedly engaged with the rotating drum (25). The telescopic rod (27) is set between the connecting block (24) and the base block (5) and is used to restrict the base block (5) from rotating with the rotating drum (25).

8. The device for processing copper conductors of power cables by stranding as described in claim 7, characterized in that, The second adjustment mechanism further includes a drive assembly, which includes a second connecting rod (32), a second bevel tooth (33), a first bevel tooth (31), a first connecting rod (30), and a locking rod (29). The second connecting rod (32) is coaxially fixedly connected to the corresponding transmission rod (10). The second bevel tooth (33) is disposed on the second connecting rod (32). The first bevel tooth (31) meshes with the second bevel tooth (33). One end of the first connecting rod (30) is connected to the first bevel tooth (31). The locking rod (29) is connected to the other end of the first connecting rod (30). The end of the rotating drum (25) away from the screw (26) is provided with a locking hole (28) that engages with the locking rod (29). When the connecting block (24) is inserted into the groove (16), the locking rod (29) extends into the locking hole (28) and forms a circumferential limiting engagement with the locking hole (28).

9. The device for processing copper conductors of power cables by stranding as described in claim 8, characterized in that, Both the clamp rod (29) and the clamp hole (28) have rectangular cross sections.

10. The power cable copper conductor stranding processing device as described in claim 8, characterized in that, The power cable copper conductor stranding processing device also includes a positioning component, which includes a positioning ring (34), a second positioning rod (35), and a third spring (38). The positioning ring (34) is sleeved and fixed on the outside of the transmission rod (10). The second positioning rod (35) is inserted into the axial side of the positioning ring (34) along the axial direction of the transmission rod (10). The limiting block (8) has multiple second positioning holes (36) circumferentially opened around the transmission rod (10) on the side facing the positioning ring (34). The third spring (38) is set between the positioning ring (34) and the second positioning rod (35) and applies an elastic force toward the second positioning hole (36) to the second positioning rod (35). The second positioning hole (36) is used to engage with the second positioning rod (35).

11. The device for processing copper conductors of power cables by stranding as described in claim 2, characterized in that, A toothed ring (11) is fixedly sleeved on the outer periphery of the turntable (7), and a fixed plate (13) is fixed on the base plate (2). A locking rod (12) is movably inserted into the fixed plate (13) along the radial direction of the toothed ring (11), and one end of the locking rod (12) can be inserted into the positioning gap between adjacent teeth of the toothed ring (11).

Images