Wire twisting equipment and method for manufacturing power cable

Abstract

The invention relates to the technical field of cable processing, in particular to power cable manufacturing wire twisting equipment, which comprises a first rotating disc, a second rotating disc and a wire twisting mold, and further comprises an active pay-off assembly used for paying off a plurality of single wires, the multiple guide grooves are formed in the second rotating disc in a penetrating mode and correspond to the multiple single lines in a one-to-one mode, and first guide wheels are fixedly installed in the multiple guide grooves; according to the invention, when line breakage is detected, the controller judges single line breakage and an approximate area of the breakage according to received pressure information fed back by the overpressure sensor, requests to control and stop wire twisting, and feeds back a breakage interval, so that wire twisting equipment can conveniently and actively detect and identify single line breakage, and the wire twisting equipment can conveniently and actively discover wire breakage information; and wire twisting is stopped, so that the invalid processing time can be shortened.

Description

Technical Field

[0001] The invention relates to the field of cable processing, and in particular to a wire twisting device and a method for manufacturing a power cable. Background Art

[0002] Power cables are used to transmit and distribute electrical energy. The basic structure of power cables consists of four parts: core (conductor), insulation layer, shielding layer and protective layer. The purpose of power cable twisting is to twist multiple single wires into one strand to meet the core process requirements of power cables.

[0003] Some invention patents related to cable stranding are disclosed in the prior art. A Chinese patent with publication number CN116313303A discloses an automated stranding device for power cable manufacturing, including: a fixed base, an anti-slip wire pressing mechanism, a clamping mechanism and a guide anti-jump mechanism.

[0004] In the process of twisting the wires, the twisted single conductor is twisted while being pulled. If there are broken marks on the surface, it is easy to break during the twisting process. However, it is not easy to find the broken state during the processing, resulting in a long period of ineffective processing. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a power cable manufacturing twisted wire device and method.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0007] In a first aspect, a power cable manufacturing stranding device is provided, comprising a first turntable, a second turntable and a stranding mold, wherein a connecting rod is fixedly connected between the first turntable and the second turntable, and further comprising:

[0008] An active pay-off assembly, the active pay-off assembly being used to pay out a plurality of single wires;

[0009] A plurality of guide grooves are provided on the second rotating disk, and correspond to the plurality of single lines one by one. A first guide wheel is fixedly installed in each of the plurality of guide grooves;

[0010] An auxiliary support assembly, the auxiliary support assembly comprising a plurality of support rails corresponding to the plurality of single lines one by one, each of the support rails having a plurality of mounting grooves, a slider being slidably arranged in the plurality of mounting grooves, both sides of the slider being fixedly connected with a gas spring, an auxiliary support wheel being fixedly installed on the side of the slider, a pressure sensor being fixedly installed on the inner wall of the plurality of mounting grooves on one side close to the second turntable, and a support ring being fixedly connected between the plurality of support rails;

[0011] A linear drive unit, the linear drive unit is used to drive the support ring to move towards the first rotating disk;

[0012] A plurality of one-way limit assemblies, wherein the plurality of one-way limit assemblies are used to unidirectionally limit the rolling directions of the auxiliary support wheels on the plurality of support rails respectively when the linear drive unit drives the support ring to move;

[0013] The controller is used to control the linear drive unit to drive the support ring to move toward the first rotating disk, and determine whether to stop twisting the wire according to the pressure information detected by the pressure sensor.

[0014] It should be understood that in the normal wire twisting process, the one-way limit assembly cancels the one-way limit on the auxiliary support wheel. At this time, the auxiliary support wheel plays the role of auxiliary support for the single wire, overcoming the gravity generated by the single wire being suspended in the transmission process during the twisting process, and reducing the self-gravity of the single wire to increase the negative gravity during the twisting process;

[0015] When it is necessary to detect whether the single line is broken, the auxiliary support wheel is limited in one direction through the one-way limit assembly. The roller cannot roll in the transmission direction of the single line. The linear drive unit drives the support ring, and the support ring will synchronously drive the support track to move. The unbroken single line will pull all the auxiliary support wheels on the support track. The auxiliary support wheel will synchronously drive the slider to move in the installation groove. While compressing the gas spring, the pressure sensor is squeezed and the pressure is gradually increased within a certain period of time. If the single line is broken, there are three specific situations:

[0016] If the position where the single wire breaks is outside the auxiliary support wheel and close to the first turntable, the single wire will first pull the multiple auxiliary support wheels on the support track, and the pressure sensor on the support track will be squeezed. However, the single wire will gradually overcome the friction and be pulled out of the auxiliary support wheel, and the pressure sensor on the support track will gradually lose pressure, indicating that the single wire in the first interval position is broken;

[0017] If the position where the single wire breaks is between the auxiliary support wheels of the support track, then one of the auxiliary support wheels will not be pulled by the single wire at the beginning, so the pressure sensor at the corresponding position will never detect an increase in pressure during the detection process. However, if an auxiliary support wheel is pulled, the pressure sensor at the corresponding position will detect an increase in pressure. However, as the single wire overcomes friction and detaches, the pressure sensor corresponding to the auxiliary support wheel detached by the single wire will gradually lose the pressure generated by the traction, indicating that the single wire is broken between the auxiliary support wheels, indicating that the single wire is broken at the position of the second interval;

[0018] If the single wire is broken outside the auxiliary support wheel near the second turntable, the auxiliary support wheels on the corresponding support rails cannot be pulled. Therefore, the pressure sensor at the corresponding position cannot detect an increase in pressure within a certain period of time, indicating that the single wire at the third interval position is broken.

[0019] Therefore, when a line break is detected, the controller determines the single-wire break and the approximate area of ​​the break based on the pressure information fed back by the over-pressure sensor, requests control to stop twisting the wire, and provides feedback on the broken range, so that the wire twisting equipment can actively detect and identify single-wire breaks, which is beneficial for the wire twisting equipment to actively discover wire break information and stop twisting the wire, thereby shortening the time of invalid processing.

[0020] As a further embodiment of the present invention, it also includes

[0021] A support seat, wherein a first bracket and a second bracket are fixedly connected to the top of the support seat, the first turntable is rotatably connected to the top of the first bracket, and the second turntable is rotatably connected to the top of the second bracket;

[0022] The rotation driving unit is used to drive the first turntable to rotate.

[0023] As a further embodiment of the present invention, the rotation drive unit comprises:

[0024] A first motor, wherein the first motor is fixedly mounted on the first bracket, and an output end of the first motor is fixedly connected to a driving gear;

[0025] A support shaft is rotatably connected to the first bracket and fixedly connected to the first turntable after passing through the first bracket. A follower gear is fixedly connected to the surface of the support shaft, and the follower gear is meshed with the driving gear.

[0026] As a further embodiment of the present invention, the active pay-off assembly comprises:

[0027] A plurality of active pay-off rollers are used to pay off a single wire, and a plurality of active pay-off rollers are distributedly installed in a ring array on the surface of the first turntable.

[0028] As a further implementation of the present invention, the linear drive unit is two electric cylinders, the two electric cylinders are fixedly mounted on the surface of the second support plate, and the telescopic ends are both fixedly connected to the support ring.

[0029] As a further embodiment of the present invention, the one-way limit assembly comprises:

[0030] A plurality of connecting sleeves, wherein the plurality of connecting sleeves are respectively fixedly connected to a side of the plurality of auxiliary support wheels on the same support rail away from the slider;

[0031] A support plate, the support plate is slidably inserted in the connecting sleeve, and the top is unidirectionally rotatably connected to a limited wheel through a one-way bearing, a connecting groove is provided on the side of the support plate, a linkage pin is slidably connected inside the connecting groove, and a support spring is fixedly connected between the linkage pin and the inner wall of the connecting groove;

[0032] A circular track, wherein the circular track is slidably sleeved on the surface of a plurality of linkage pins on the same supporting track;

[0033] The linkage pressing assembly is used to press the circular track in a linkage manner when the linear drive unit pushes the support ring. The circular track drives the linkage pin to move. The linkage pin drives the support plate through the support spring. The support plate drives the limiting wheel to contact the top of the auxiliary support wheel.

[0034] As a further embodiment of the present invention, the linked pressing assembly comprises:

[0035] A linkage frame, wherein the linkage frame is fixedly connected to two ends of the circular track;

[0036] Two plug rods, the two plug rods are fixedly connected to the surface of the linkage frame, and are fixedly connected to the support plate after penetrating the support rail;

[0037] A guide rail, the guide rail comprising a first transverse groove, an inclined groove and a second transverse groove, and the guide rail is fixedly connected to the surface of the linkage frame;

[0038] A positioning plate is fixedly connected to the second rotating disk, and an end portion of the positioning plate is rotatably connected to a moving wheel, and the moving wheel is slidably arranged in the first transverse groove.

[0039] As a further embodiment of the present invention, two center stopper assemblies are also included, and the center stopper assemblies include:

[0040] A mounting frame, the mounting frame is fixedly connected to the surface of the first bracket, and a first supporting circular plate is fixedly connected to the top of the mounting frame, the first supporting circular plate passes through the supporting shaft and the first rotating disk in sequence, and a first through opening is opened on the surface of the first supporting circular plate;

[0041] A second supporting circular plate, the second supporting circular plate passes through the second turntable and is fixedly connected to the first supporting circular plate with a connecting plate, a second opening is opened on the surface of the second circular plate, second guide wheels are fixedly installed in the first opening and the second opening, and the second guide wheel is used to guide and support the center line.

[0042] As a further embodiment of the present invention, it also includes:

[0043] The third bracket is fixedly sleeved on the surface of the stranding mold, and the third bracket is fixedly connected to the top surface of the support seat.

[0044] In a second aspect, a method for manufacturing twisted wires of a power cable is provided, comprising the following steps:

[0045] Step 1: Paying off the wire: Paying off the wire through the active pay-off assembly, so that the single wire passes through the auxiliary support assembly and the first guide wheel in sequence, and then is wrapped and bundled through the stranding die to prepare for the subsequent winding;

[0046] Step 2: wire breakage detection: the controller controls the linear drive unit to drive the support ring to move toward the direction close to the first turntable, and the pressure sensor detects pressure information;

[0047] Step 3: Make a judgment: The controller judges whether to stop twisting the wire according to the pressure information detected by the pressure sensor.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] In the present invention, when a line break is detected, the controller determines the single-wire break and the approximate area of ​​the break based on the pressure information fed back by the over-pressure sensor, requests control to stop twisting the wires, and provides feedback on the broken interval, so as to facilitate the wire twisting equipment to actively detect and identify the single-wire break, and is beneficial for the wire twisting equipment to actively discover the wire break information and stop twisting the wires, which is beneficial to shorten the time of invalid processing.

[0050] During the normal wire twisting process, the one-way limit assembly cancels the one-way limit on the auxiliary support wheel. At this time, the auxiliary support wheel plays the role of auxiliary support for the single wire, overcoming the gravity generated by the single wire being suspended in the transmission process during the wire twisting process, reducing the single wire's own gravity to increase the negative gravity during the wire twisting process.

[0051] The limiting wheel can rotate in the first direction a. On the one hand, when limiting, when contacting the auxiliary support wheel, the auxiliary support wheel can be restricted from rolling along the moving direction of the single wire in the normal twisting state. On the other hand, when the wire breaks, since the auxiliary support wheel can also rotate in another direction, it is convenient for the active pay-off roller to retract the single wire after the segment from the auxiliary support wheel when winding the wire.

[0052] During testing, the linkage pressing assembly plays a role in linkage pressing the circular track, thereby indirectly driving the limit wheel to contact and limit the auxiliary support wheel. When not testing, the moving wheel is located in the first transverse groove, supporting the guide track, and then guiding the track to support the linkage frame. The linkage frame pulls and supports the support track through the support plate at the bottom end of the insertion rod, which is beneficial to improve the stability of the support track. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 The figure is a flow chart of the method of the present invention.

[0054] Figure 2It is a first overall structural schematic diagram of the present invention.

[0055] Figure 3 It is a second overall structural schematic diagram of the present invention.

[0056] Figure 4 for Figure 3 Enlarged view of part A.

[0057] Figure 5 It is a schematic structural diagram of the first turntable of the present invention.

[0058] Figure 6 It is a schematic structural diagram of the first supporting circular plate and the second supporting circular plate of the present invention.

[0059] Figure 7 It is a first structural schematic diagram of the support rail, auxiliary support wheel and one-way limiting assembly of the present invention.

[0060] Figure 8 for Figure 7 Enlarged view of part B.

[0061] Fig. 9 It is a second structural schematic diagram of the support rail, auxiliary support wheel and one-way limiting assembly of the present invention.

[0062] Fig.10 for Fig. 9 Enlarged view of part C.

[0063] Fig.11 It is a structural schematic diagram of the linkage frame of the present invention.

[0064] In the figure: single wire 1, center line 2, first turntable 3, second turntable 4, stranding mold 5, connecting rod 6, guide groove 7, first guide wheel 8, second connecting frame 4501, support rail 9, mounting groove 10, slider 11, gas spring 12, pressure sensor 13, support ring 14, controller 15, support seat 16, first bracket 17, second bracket 18, first motor 19, driving gear 20, support shaft 21, follower gear 22, active pay-off roller 23, second motor 2301, electric cylinder 24, connecting sleeve 25, support plate 26, one-way bearing 27, limit wheel 2 8. Connecting groove 29, linkage pin 2901, supporting spring 30, return track 31, linkage frame 32, insertion rod 33, support plate 34, guide rail 35, first transverse groove 3501, inclined groove 3502, second transverse groove 3503, positioning plate 36, moving wheel 37, mounting frame 38, first supporting circular plate 39, first through opening 40, second supporting circular plate 41, second through opening 42, second guide wheel 43, third bracket 44, auxiliary support wheel 45, second connecting frame 4501, support sleeve 46, support rod 47, connecting plate 48, support wheel 49, first connecting frame 50. DETAILED DESCRIPTION

[0065] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0066] Some mechanical parts are explained as follows:

[0067] The first guide wheel 8, the second guide wheel 43 and the auxiliary support wheel 45 all have two symmetrically distributed support wheels 49, and the surface of the support wheel 49 has an annular limiting groove. The first guide wheel 8 and the two symmetrically distributed support wheels 49 of the second guide wheel 43 are rotatably connected with a first connecting frame 50, and the two symmetrically distributed support wheels 49 of the auxiliary support wheel 45 are rotatably connected with a second connecting frame 4501.

[0068] Specifically, the two sides of the second connecting frame 4501 of the auxiliary support wheel are fixedly connected to the slider 11 and the connecting sleeve 25 at the corresponding positions respectively;

[0069] The first connecting frame 50 of the first guide wheel 8 and the second guide wheel 43 are fixedly connected to the inner walls of the first through opening 40 and the second through opening 42 respectively.

[0070] like Figures 1 to 11 The wire stranding equipment for manufacturing power cables shown in the figure comprises a first rotating disc 3, a second rotating disc 4 and a stranding mold 5, wherein a connecting rod 6 is fixedly connected between the first rotating disc 3 and the second rotating disc 4, and further comprises:

[0071] An active wire-paying component, the active wire-paying component is used to pay out multiple single wires 1;

[0072] A plurality of guide grooves 7 are provided on the second rotary disc 4 and correspond to the plurality of single wires 1 one by one. A first guide wheel 8 is fixedly installed in each of the plurality of guide grooves 7;

[0073] Auxiliary support assembly, the auxiliary support assembly includes a plurality of support rails 9 corresponding to the plurality of single lines 1 one by one, each support rail 9 has a plurality of mounting grooves 10, a slider 11 is slidably arranged in the plurality of mounting grooves 10, both sides of the slider 11 are fixedly connected with gas springs 12, an auxiliary support wheel 45 is fixedly installed on the side of the slider 11, a pressure sensor 13 is fixedly installed on the inner wall of the plurality of mounting grooves 10 near the second turntable 4, and a support ring 14 is fixedly connected between the plurality of support rails 9;

[0074] A linear drive unit, which is used to drive the support ring 14 to move toward the first turntable 3;

[0075] Multiple one-way limit assemblies, which are used to unidirectionally limit the rolling direction of the auxiliary support wheels 45 on the multiple support rails 9 when the linear drive unit drives the support ring 14 to move;

[0076] The controller 15 is used to control the linear drive unit to drive the support ring 14 to move toward the first turntable 3, and determine whether to stop twisting the wire according to the pressure information detected by the pressure sensor 13.

[0077] Specifically, a support sleeve 46 is fixedly connected to the inner wall of the support ring 14 , a support rod 47 is slidably connected inside the support sleeve 46 , and the support rod 47 is fixedly connected to the surface of the second turntable 4 .

[0078] It should be understood that in the normal wire twisting process, the one-way limit assembly cancels the one-way limit of the auxiliary support wheel 45. At this time, the auxiliary support wheel 45 plays the role of auxiliary support for the single wire 1, overcomes the gravity generated by the single wire 1 being suspended in the transmission process during the twisting process, and reduces the self-gravity of the single wire 1 to increase the negative gravity during the twisting process;

[0079] When it is necessary to detect whether the single line 1 is broken, the auxiliary support wheel 45 is limited in one direction through the one-way limit component, and the roller cannot roll in the transmission direction of the single line 1. The linear drive unit drives the support ring 14, and the support ring 14 will synchronously drive the support track 9 to move. The unbroken single line 1 will pull all the auxiliary support wheels 45 on the support track 9, and the auxiliary support wheel 45 will synchronously drive the slider 11 to move in the installation groove 10. While compressing the gas spring 12, the pressure sensor 13 is squeezed, and the pressure is gradually increased within a certain period of time. If the single line 1 is broken, there are three specific situations:

[0080] If the position where the single wire 1 is broken is outside the auxiliary support wheel 45 and close to the first turntable 3, the single wire 1 will first pull the multiple auxiliary support wheels 45 on the support track 9, and the pressure sensor 13 on the support track 9 will be squeezed. However, the single wire 1 will gradually overcome the friction of the auxiliary support wheel 45 and be pulled out, and the pressure sensor 13 on the support track 9 will gradually lose pressure, indicating that the single wire 1 at the first interval position is broken;

[0081] If the position where the single wire 1 breaks is between the auxiliary support wheels 45 of the support rail 9, the auxiliary support wheels 45 will not be pulled by the single wire 1 at the beginning, so the pressure sensor 13 at the corresponding position will never detect an increase in pressure during the detection process. However, if an auxiliary support wheel 45 is pulled, the pressure sensor 13 at the corresponding position will detect an increase in pressure. However, as the single wire 1 eventually overcomes friction and detaches, the pressure sensor 13 corresponding to the auxiliary support wheel 45 detached from the single wire 1 will gradually lose the pressure generated by the traction, indicating that the single wire 1 is broken between the auxiliary support wheels 45, indicating that the single wire 1 is broken at the position of the second interval;

[0082] If the single wire 1 is broken outside the auxiliary support wheel 45 and close to the second turntable 4, the auxiliary support wheel 45 on the corresponding support track 9 cannot be pulled. Therefore, the pressure sensor 13 at the corresponding position cannot detect the increase of pressure within a certain period of time, indicating that the single wire 1 at the third interval position is broken;

[0083] Therefore, when a line break is detected, the controller 15 determines the single wire break and the approximate area of ​​the break based on the pressure information fed back by the over-pressure sensor 13, requests control to stop twisting the wire, and provides feedback on the broken interval, so as to facilitate the wire twisting equipment to actively detect and identify the break in the single wire 1, which is beneficial for the wire twisting equipment to actively discover the wire break information and stop twisting the wire, thereby shortening the time of invalid processing.

[0084] Specifically, two support sleeves 46 are fixedly connected to the inner wall of the support ring 14, and support rods 47 are slidably connected in the two support sleeves 46. The support rods 47 are fixedly connected to the surface of the second turntable 4, which increases the support points of the support ring 14 and avoids putting all the gravity on the linear drive unit.

[0085] As a further embodiment of the present invention, it also includes

[0086] A support base 16, the top of which is fixedly connected with a first bracket 17 and a second bracket 18, the first turntable 3 is rotatably connected to the top of the first bracket 17, and the second turntable 4 is rotatably connected to the top of the second bracket 18;

[0087] The rotation driving unit is used to drive the first rotating disk 3 to rotate.

[0088] Specifically, the controller 15 is fixedly mounted on the first bracket 17 .

[0089] It should be understood that during the stranding process, the first turntable 3 is driven to rotate by the rotary drive unit, and the first turntable 3 synchronously drives the second turntable 4 to rotate through the connecting rod 6, thereby driving the stranding of multiple single wires 1.

[0090] As a further embodiment of the present invention, the rotary drive unit comprises:

[0091] A first motor 19, which is fixedly mounted on the first bracket 17, and an output end of which is fixedly connected to a driving gear 20;

[0092] The support shaft 21 is rotatably connected to the first bracket 17 and is fixedly connected to the first turntable 3 after passing through the first bracket 17 . A follower gear 22 is fixedly connected to the surface of the support shaft 21 , and the follower gear 22 is meshed with the driving gear 20 .

[0093] It should be understood that when twisting is required, the first motor 19 is started, the first motor 19 drives the driving gear 20 to rotate, the driving gear 20 synchronously drives the follower gear 22, the follower gear 22 drives the supporting shaft 21 to rotate, and the supporting shaft 21 synchronously drives the first turntable 3 to rotate.

[0094] As a further embodiment of the present invention, the active pay-off assembly comprises:

[0095] A plurality of active pay-off rollers 23 are used to pay off the single wire 1 , and the plurality of active pay-off rollers 23 are distributed and installed on the surface of the first turntable 3 in a ring array.

[0096] Specifically, the active pay-off roller 23 also includes a connecting seat, and the active pay-off roller 23 is rotatably connected between the connecting seats, wherein a second motor 2301 is fixedly installed on the side of the connecting seat, and the output end of the second motor 2301 is fixedly connected to the active pay-off roller 23. When paying out the line, the active pay-off roller 23 is driven to rotate by the second motor 2301, thereby realizing automatic pay-off.

[0097] As a further implementation scheme of the present invention, the linear drive units are two electric cylinders 24 , which are fixedly mounted on the surface of the second support plate, and both telescopic ends are fixedly connected to the support ring 14 .

[0098] It should be understood that when it is necessary to drive the multiple support rails 9 away from the second turntable 4, the two electric cylinders 24 are started, the two electric cylinders 24 synchronously push the support ring 14, and the support ring 14 synchronously drives the multiple support rails 9 to move synchronously.

[0099] As a further embodiment of the present invention, the one-way limit assembly comprises:

[0100] A plurality of connecting sleeves 25, wherein the plurality of connecting sleeves 25 are respectively fixedly connected to a plurality of auxiliary support wheels 45 on the same support rail 9 on a side away from the slider 11;

[0101] The support plate 26 is slidably inserted in the connecting sleeve 25, and the top is unidirectionally rotatably connected to the limiting wheel 28 through the one-way bearing 27. A connecting groove 29 is provided on the side of the support plate 26, and a linkage pin 2901 is slidably connected inside the connecting groove 29. A support spring 30 is fixedly connected between the linkage pin 2901 and the inner wall of the connecting groove 29;

[0102] A circular track 31, the circular track 31 is slidably sleeved on the surface of a plurality of linkage pins 2901 on the same support track 9;

[0103] The linkage pressing assembly is used to linkage press the circular track 31 when the linear drive unit pushes the support ring 14. The circular track 31 drives the linkage pin 2901 to move. The linkage pin 2901 drives the support plate 26 through the support spring 30. The support plate 26 drives the limiting wheel 28 to contact the top of the auxiliary support wheel 45.

[0104] It should be understood that in the process of the linear drive unit pushing the support ring 14, the circular track 31 is pressed in linkage, and the circular track 31 drives the linkage pin 2901 to move, and the linkage pin 2901 drives the support plate 26 through the support spring 30, and the support plate 26 drives the limiting wheel 28 to contact the top of the auxiliary support wheel 45. Since the limiting wheel 28 can only rotate in one direction, the rotation direction of the auxiliary support wheel 45 will be limited in one direction under the action of friction. The limiting wheel 28 can rotate in the first direction a. The limiting wheel 28 limits the limiting direction of the auxiliary support wheel to the direction in which the single wire 1 can move along with the movement of the single wire 1 during the stranding process, so as to form friction damping for the single wire 1, and the auxiliary support wheel 45 will cause friction resistance to the passing single wire 1.

[0105] It should be further explained that the limiting wheel 28 can rotate in the first direction a. On the one hand, when limiting, when contacting the auxiliary support wheel 45, the auxiliary support wheel 45 can be restricted from rolling along the moving direction of the single wire 1 in the normal twisting state. On the other hand, when the wire breaks, since the auxiliary support wheel 45 can also rotate in another direction, it is convenient for the active pay-off roller to retract the single wire after the segment from the auxiliary support wheel 45 when winding the wire.

[0106] As a further embodiment of the present invention, the linkage pressing assembly comprises:

[0107] A linkage frame 32, the linkage frame 32 is fixedly connected to both ends of the circular track 31;

[0108] Two insertion rods 33, the two insertion rods 33 are fixedly connected to the surface of the linkage frame 32, and penetrate the support rail 9 and are fixedly connected to the support plate 34;

[0109] A guide rail 35, the guide rail 35 comprises a first transverse groove 3501, an oblique groove 3502 and a second transverse groove 3503, and the guide rail 35 is fixedly connected to the surface of the linkage frame 32;

[0110] The positioning plate 36 is fixedly connected to the second rotating disk 4 , and the end of the positioning plate 36 is rotatably connected to a moving wheel 37 , and the moving wheel 37 is slidably arranged in the first transverse groove 3501 .

[0111] It should be understood that during the inspection, when the support ring 14 moves away from the second turntable 4, it will drive the support rail 9 to move synchronously, and the support rail 9 will drive the linkage frame 32 to move through the insertion rod 33, and the linkage frame 32 will synchronously drive the guide rail 35 to move, and when the inclined groove 3502 passes through the moving wheel 37, the guide rail 35 will be pushed downward, and the guide rail 35 will synchronously drive the linkage frame 32 to move downward, and the linkage frame 32 will drive the return track 31 to move downward, and the return track 31 will drive the linkage pin 2901 to move, and the linkage pin 2901 will drive the support plate 26 through the support spring 30, and the support plate 26 will drive the limiting wheel 28 to contact the top of the auxiliary support wheel 45;

[0112] It should be noted that when not detected, the moving wheel 37 is located in the first transverse groove 3501, supporting the guide rail 35, and then the guide rail 35 supports the linkage frame 32, and the linkage frame 32 pulls and supports the support rail 9 through the insertion rod 33, which is beneficial to improve the stability of the support rail 9.

[0113] As a further embodiment of the present invention, two center limit assemblies are also included, and the center limit assemblies include:

[0114] A mounting frame 38, the mounting frame 38 is fixedly connected to the surface of the first bracket 17, and a first supporting circular plate 39 is fixedly connected to the top thereof, the first supporting circular plate 39 passes through the supporting shaft 21 and the first rotating disk 3 in sequence, and a first through opening 40 is opened on the surface of the first supporting circular plate 39;

[0115] The second supporting circular plate 41 passes through the second turntable 4 and is fixedly connected to the first supporting circular plate 39 by a connecting plate 48. A second opening 42 is provided on the surface of the second circular plate. Second guide wheels 43 are fixedly installed in the first opening 40 and the second opening 42. The second guide wheels 43 are used to guide and support the center line 2.

[0116] It should be understood that by providing the first supporting circular plate 39 and the second supporting circular plate 41 , the center line 2 is supported and will not rotate with the first turntable 3 and the second turntable 4 , and with the support of the second guide wheel 43 , the center line 2 is stably supported.

[0117] As a further embodiment of the present invention, it also includes:

[0118] The third bracket 44 is fixedly sleeved on the surface of the stranding mold 5 , and the third bracket 44 is fixedly connected to the top surface of the support seat 16 .

[0119] It should be understood that the third bracket 44 is provided to fix the wire stranding die 5 and support the wire stranding die 5 to guide and concentrate the metal wires.

[0120] like Figure 1A method for manufacturing twisted wires of a power cable is shown, comprising the following steps:

[0121] Step 1: Paying off: Paying off the wires through the active pay-off assembly, so that the single wire 1 passes through the auxiliary support assembly and the first guide wheel 8 in sequence, and then is wrapped and bundled through the stranding die 5 to prepare for the subsequent winding;

[0122] Step 2: Wire break detection: the controller 15 controls the linear drive unit to drive the support ring 14 to move toward the first turntable 3, and the pressure sensor 13 detects pressure information;

[0123] Step 3: Make a judgment: The controller 15 judges whether to stop twisting the wire according to the pressure information detected by the pressure sensor 13 .

[0124] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A wire stranding device for manufacturing power cables, comprising a first rotating disc (3), a second rotating disc (4) and a wire stranding die (5), wherein a connecting rod (6) is fixedly connected between the first rotating disc (3) and the second rotating disc (4), and characterized in that: Also includes: An active wire-paying assembly, the active wire-paying assembly being used to pay out a plurality of single wires (1); A plurality of guide grooves (7), wherein the plurality of guide grooves (7) are formed through the second rotary disc (4) and correspond one to one with the plurality of single wires (1), and a first guide wheel (8) is fixedly installed in each of the plurality of guide grooves (7); An auxiliary support component, the auxiliary support component comprising a plurality of support rails (9) corresponding one to one with the plurality of single lines (1), each of the support rails (9) having a plurality of mounting grooves (10), a slider (11) being slidably arranged in each of the plurality of mounting grooves (10), gas springs (12) being fixedly connected to both sides of the slider (11), an auxiliary support wheel (45) being fixedly installed on the side of the slider (11), a pressure sensor (13) being fixedly installed on one side of the inner wall of each of the plurality of mounting grooves (10) close to the second turntable (4), and a support ring (14) being fixedly connected between the plurality of support rails (9); A linear drive unit, the linear drive unit being used to drive the support ring (14) to move in a direction close to the first rotating disk (3); A plurality of one-way limiting components, wherein the plurality of one-way limiting components are used to unidirectionally limit the rolling directions of the auxiliary support wheels (45) on the plurality of support rails (9) respectively when the linear drive unit drives the support ring (14) to move; The controller (15) is used to control the linear drive unit to drive the support ring (14) to move in a direction close to the first rotating disk (3), and to determine whether to stop twisting the wire according to the pressure information detected by the pressure sensor (13).

2. A power cable manufacturing twisting wire device according to claim 1, characterized in that: Also includes A support seat (16), the top of which is fixedly connected to a first bracket (17) and a second bracket (18), the first turntable (3) is rotatably connected to the top of the first bracket (17), and the second turntable (4) is rotatably connected to the top of the second bracket (18); The rotation driving unit is used to drive the first rotating disk (3) to rotate.

3. A wire twisting device for manufacturing power cables according to claim 2, characterized in that: The rotary drive unit comprises: A first motor (19), the first motor (19) is fixedly mounted on the first bracket (17), and an output end thereof is fixedly connected to a driving gear (20); A support shaft (21), the support shaft (21) is rotatably connected to the first bracket (17), and is fixedly connected to the first turntable (3) after passing through the first bracket (17), and a follower gear (22) is fixedly connected to the surface of the support shaft (21), and the follower gear (22) is meshed with the driving gear (20).

4. The power cable manufacturing wire twisting equipment according to claim 1, characterized in that: The active pay-off assembly comprises: A plurality of active pay-off rollers (23), wherein the active pay-off rollers (23) are used to pay off the single wire (1), and the plurality of active pay-off rollers (23) are distributedly installed in a ring array on the surface of the first turntable (3).

5. The power cable manufacturing wire twisting equipment according to claim 1, characterized in that: The linear drive units are two electric cylinders (24), the two electric cylinders (24) are fixedly mounted on the surface of the second support plate, and the telescopic ends are both fixedly connected to the support ring (14).

6. The power cable manufacturing twisting wire equipment according to claim 1, characterized in that: The one-way limit assembly comprises: A plurality of connecting sleeves (25), wherein the plurality of connecting sleeves (25) are respectively fixedly connected to a side of the plurality of auxiliary support wheels (45) on the same support rail (9) away from the slider (11); A support plate (26), the support plate (26) is slidably inserted in the connecting sleeve (25), and the top is unidirectionally rotatably connected to a limiting wheel (28) via a one-way bearing (27), a connecting groove (29) is provided on the side of the support plate (26), a linkage pin (2901) is slidably connected inside the connecting groove (29), and a support spring (30) is fixedly connected between the linkage pin (2901) and the inner wall of the connecting groove (29); A circular track (31), wherein the circular track (31) is slidably sleeved on the surface of a plurality of linkage pins (2901) on the same supporting track (9); The linkage pressing assembly is used to linkage press the circular track (31) when the linear drive unit pushes the support ring (14), the circular track (31) drives the linkage pin (2901) to move, the linkage pin (2901) drives the support plate (26) through the support spring (30), and the support plate (26) drives the limiting wheel (28) to contact the top of the auxiliary support wheel (45).

7. The power cable manufacturing wire twisting equipment according to claim 6, characterized in that: The linkage pressing component comprises: A linkage frame (32), wherein the linkage frame (32) is fixedly connected to two ends of the circular track (31); Two insertion rods (33), the two insertion rods (33) are fixedly connected to the surface of the linkage frame (32), and are fixedly connected to a support plate (34) after penetrating the support rail (9); A guide rail (35), the guide rail (35) comprising a first transverse groove (3501), an inclined groove (3502) and a second transverse groove (3503), the guide rail (35) being fixedly connected to the surface of the linkage frame (32); A positioning plate (36), the positioning plate (36) is fixedly connected to the second rotating disk (4), and the end thereof is rotatably connected to a moving wheel (37), and the moving wheel (37) is slidably arranged in the first transverse groove (3501).

8. The wire twisting device for manufacturing power cables according to claim 7, characterized in that: It also includes two center stop assemblies, the center stop assemblies including: A mounting frame (38), the mounting frame (38) is fixedly connected to the surface of the first bracket (17), and a first supporting circular plate (39) is fixedly connected to the top end thereof, the first supporting circular plate (39) passes through the supporting shaft (21) and the first rotating disk (3) in sequence, and a first through opening (40) is formed on the surface of the first supporting circular plate (39); A second supporting circular plate (41), the second supporting circular plate (41) passes through the second rotating disk (4), and a connecting plate (48) is fixedly connected to the first supporting circular plate (39), a second opening (42) is opened on the surface of the second circular plate, and a second guide wheel (43) is fixedly installed in the first opening (40) and the second opening (42), and the second guide wheel (43) is used to guide and support the center line (2).

9. The power cable manufacturing wire twisting equipment according to claim 1, characterized in that: Also includes: A third bracket (44), wherein the third bracket (44) is fixedly sleeved on the surface of the stranding mold (5), and the third bracket (44) is fixedly connected to the top surface of the support seat (16).

10. A method for manufacturing twisted wires of a power cable, applicable to the device for manufacturing twisted wires of a power cable according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Paying off the wire: Paying off the wire through the active pay-off assembly, so that the single wire (1) passes through the auxiliary support assembly and the first guide wheel (8) in sequence, and then is wrapped and bundled through the stranding mold (5) to prepare for subsequent winding; Step 2: wire breakage detection: the controller (15) controls the linear drive unit to drive the support ring (14) to move in a direction close to the first turntable (3), and the pressure sensor (13) detects pressure information; Step 3: Making a judgment: The controller (15) judges whether to stop twisting the wire according to the pressure information detected by the pressure sensor (13).

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