Guiding device of metal single wire stranded conductor and cable production equipment

Abstract

The embodiment of the invention provides a guiding device of a metal single wire stranded conductor and cable production equipment, and belongs to the technical field of cable production equipment. The guiding device for the metal single wire stranded conductor is used for guiding a central conductor and a metal single wire to be stranded, and comprises a guiding seat which is provided with a through hole for guiding the central conductor, a plurality of wire passing holes are formed in the circumferential direction of the guiding seat at intervals, and the wire passing holes are used for guiding the metal single wire to penetrate through; the at least two guide wheels are arranged on the guide seat and are respectively and correspondingly positioned on two sides of the wire passing hole so as to jointly clamp the metal monofilament penetrating through the wire passing hole; wherein at least one of the two guide wheels located on the two sides of the wire passing hole moves relative to the other guide wheel, and the two guide wheels oppositely get close to or get away from each other in the radial direction of the guide base so as to adjust the pre-tightening force of the metal monofilament penetrating through the wire passing hole. According to the guiding device of the metal single wire stranded conductor provided by the invention, the monofilament can be prevented from deviating during stranding, so that the forming effect of the monofilament can be enhanced.

Description

Technical Field

[0001] The present application relates to the technical field of cable production equipment, and in particular to a guide device for a metal single-wire twisted conductor and a cable production equipment. Background Art

[0002] Large-section aluminum conductor submarine cables are lighter in weight than traditional copper conductors and have a larger transmission capacity. They also reduce the difficulty of laying and maintenance. Especially in deep-sea environments, submarine cables with aluminum conductor structures can reduce the demand and cost of laying equipment, improve laying efficiency, and are more adaptable to the marine environment.

[0003] In the related art, large-section water-blocking aluminum conductors are generally produced and prepared by a special-shaped compact twisting and twisting molding process. The aluminum monofilaments are guided through a wire guide wheel for subsequent twisting operations. However, the aluminum monofilaments are prone to displacement during the guiding process, which causes burrs on the surface of the aluminum monofilaments. In severe cases, the aluminum monofilaments may even break. Summary of the invention

[0004] The present application provides a guiding device for a metal single-wire twisted conductor and a cable production device, which are used to improve the problem in the related art that the aluminum single wire is easy to be cheap during the guiding process, resulting in poor forming effect.

[0005] In one aspect, the present application provides a guide device for a metal single-wire twisted conductor, which is used to guide a center conductor and a metal single wire to be twisted, comprising:

[0006] A guide seat, having a through hole for guiding the central conductor, wherein a plurality of wire passing holes are arranged at intervals in the circumferential direction of the guide seat, and the wire passing holes are used to guide the metal monofilament to pass through;

[0007] At least two guide wheels are provided on the guide seat and are respectively located on both sides of the wire passing hole to jointly clamp the metal monofilament passing through the wire passing hole;

[0008] Among them, at least one of the two guide wheels located on both sides of the wire passing hole moves relative to the other, and the two guide wheels move closer to or farther away from each other along the radial direction of the guide seat to adjust the preload force of the metal monofilament passing through the wire passing hole.

[0009] In a possible implementation, the guide device for the metal single-wire twisted conductor provided in the present application comprises at least two guide wheels including a wire guide wheel and a pressing wheel respectively located on both sides of the wire passing hole;

[0010] The guiding device also includes:

[0011] The mounting ring plate is fixed on the guide seat, the wire guide wheel is slidably connected to the mounting ring plate, the clamping wheel is fixed on the mounting ring plate, and the mounting ring plate is provided with a through hole corresponding to the wire hole and a center hole corresponding to the through hole.

[0012] In a possible implementation, the guide device for a metal single-wire twisted conductor provided by the present application is provided with an adjustment slot on the mounting ring plate, and the adjustment slot extends along the radial direction of the mounting ring plate;

[0013] The wire passing guide wheel is connected to an adjusting support rod, and one end of the adjusting support rod facing away from the wire passing guide wheel passes through the adjusting slot and is slidably connected to the guide seat, so that the wire passing guide wheel can be synchronously displaced on the mounting ring plate with the adjusting support rod.

[0014] In a possible implementation, the guide device for the metal single-wire stranded conductor provided in the present application is provided with a slide groove on the guide seat, a through adjustment opening is provided on the bottom or side wall of the slide groove, and the adjustment support rod is slidably connected to the slide groove;

[0015] One end of the adjusting support rod extending into the slide slot is connected with a fastener, a matching piece is extended into the guide seat through the adjusting opening, and the fastener is connected with the matching piece so that the adjusting support rod is fixed in the slide slot.

[0016] In a possible implementation, the guiding device for a metal single-wire twisted conductor provided in the present application comprises a plurality of wire guide wheels which are evenly arranged circumferentially around the mounting ring plate, the clamping wheels are arranged corresponding to the wire guide wheels, and each of the wire guide wheels is located on the same circumferential line.

[0017] In a possible implementation, in the guide device for a metal single-wire twisted conductor provided in the present application, any at least two adjacent wire guide wheels are rotatably connected via a rotating shaft, and the rotating shaft is connected to the guide seat via at least two adjusting support rods.

[0018] In a possible implementation, in the guiding device for the metal single-wire twisted conductor provided in the present application, at least two adjusting rods on the same rotating shaft are commonly connected to a sliding rod, and the sliding rod is slidably disposed in the sliding groove and connected to the matching piece.

[0019] In a possible implementation, the guiding device for the metal single-wire twisted conductor provided in the present application further includes:

[0020] The vertical rod is fixedly connected to the mounting ring plate, the clamping wheel is connected to the vertical rod, and the length of the vertical rod along the axial direction of the mounting ring plate is adjustable.

[0021] In a possible implementation, the guiding device for the metal single-wire twisted conductor provided in the present application is provided with a guide groove for guiding the metal monofilament on the clamping wheel and / or the wire-passing guide wheel, and the clamping wheel and / or the wire-passing guide wheel are rubber wheels.

[0022] On the other hand, the present application also provides a cable production device, comprising a guiding device for a metal single-wire twisted conductor as described in any one of the above items.

[0023] The present application provides a guiding device for a metal single-wire twisted conductor, wherein a guide seat has a through hole for guiding the central conductor, and a plurality of wire holes are arranged at intervals in the circumferential direction of the guide seat, and the wire holes are used to guide the metal monofilament through; at least two guide wheels are provided on the guide seat, and are respectively located on both sides of the wire holes to jointly clamp the metal monofilament passing through the wire holes; at least one of the two guide wheels located on both sides of the wire holes moves relative to the other, and the two guide wheels approach or move away from each other along the radial direction of the guide seat to adjust the preload force of the metal monofilament passing through the wire holes.

[0024] Therefore, the position of the guide wheel can be adjusted. On the one hand, it can facilitate adaptation to metal monofilaments of different specifications or different twisting requirements, thereby improving the versatility and practicality of the guide device. On the other hand, the displaceable guide wheel can adjust the distance between it and the clamping wheel. When the metal monofilament is pressed between the two guide wheels, the metal monofilament can be pre-tightened by adjusting the radial position of the guide wheel. This design can prevent the metal monofilament from sliding or deflecting during the twisting process, reduce the wear and damage of the metal monofilament during the twisting process, thereby improving the stability of the twisting and the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0026] Figure 1 A three-dimensional diagram of a guide device for a metal single-wire stranded conductor in an embodiment of the present application;

[0027] Figure 2 for Figure 1 A schematic diagram of a portion of the structure of a guide device for a metal single-wire stranded conductor;

[0028] Figure 3 This is a schematic diagram of the assembly of the slideway and the adjustment support rod in the embodiment of the present application;

[0029] Figure 4 for Figure 2 Schematic diagram of the partial structure of the middle adjustment support rod and the wire guide wheel;

[0030] Figure 5A half-section view of a powder cleaning component in an embodiment of the present application;

[0031] Figure 6 This is a schematic diagram of the structure of the finished cable in an embodiment of the present application.

[0032] Description of Reference Numerals

[0033] 100, guide seat; 101, through hole; 102, wire hole; 103, slide groove; 104, adjustment port; 105, matching piece;

[0034] 200, mounting ring plate; 201, through hole; 202, adjusting slot;

[0035] 300, wire guide wheel; 301, adjusting support rod; 302, fastener; 303, rotating shaft; 304, sliding rod;

[0036] 400, pressing wheel; 401, upright pole; 402, guide groove;

[0037] 501, main mold sleeve; 502, hopper; 503, dosage knob;

[0038] 601, water-blocking aluminum conductor; 602, conductor shielding layer; 603, cross-linked polyethylene insulation layer; 604, insulation shielding layer; 605, semiconductor water-blocking tape wrapping layer; 606, lead sheath shielding layer; 607, polyethylene sheath layer; 608, optical unit; 609, filling unit; 610, cable wrapping tape layer; 611, PP rope armor cushion layer; 612, steel wire armor layer; 613, PP rope outer layer.

[0039] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0041] As mentioned in the background technology, in the field of wire and cable manufacturing, the production of metal single-wire stranded conductors is a key link. Especially for the production process of large-section aluminum conductors, during the production process of aluminum conductors, when aluminum single wires are guided, due to their soft material and low strength, they will rub against the wire holes and wire guide wheels, resulting in more aluminum powder, and in severe cases, surface burrs or even wire breakage.

[0042] In the related art, the wire guide wheel in the guide device is usually fixed. The fixed wire guide wheel makes it difficult to maintain the precise position of the metal monofilament during the twisting process. This inaccuracy may cause uneven twisting, thereby affecting the electrical and mechanical properties of the conductor. In addition, due to the lack of flexible adjustment capabilities of the guide device, traditional equipment is difficult to adapt to production tasks of different specifications and requirements, reducing production flexibility and efficiency.

[0043] In view of this, one or more embodiments of the present application provide a guiding device for a metal single-wire twisted conductor, including a guide seat, the guide seat having a through hole for guiding a central conductor, the guide seat being provided with a plurality of wire holes arranged at circumferential intervals, the wire holes being used to guide the metal monofilament passing through; at least two guide wheels are provided on the guide seat, and are respectively located on both sides of the wire holes to jointly clamp the metal monofilament passing through the wire holes; at least one of the two guide wheels located on both sides of the wire holes moves relative to the other, and the two guide wheels approach or move away from each other along the radial direction of the guide seat to adjust the preload of the metal monofilament passing through the wire hole.

[0044] Therefore, the position of the wire-passing guide wheel can be adjusted. On the one hand, it can facilitate adaptation to metal monofilaments of different specifications or different twisting requirements, thereby improving the versatility and practicality of the guide device. On the other hand, the wire-passing guide wheel can adjust the distance between it and the clamping wheel. When the metal monofilament is pressed between the wire-passing guide wheel and the clamping wheel, the metal monofilament can be pre-tightened by adjusting the radial position of the wire-passing guide wheel. This design can prevent the metal monofilament from sliding or deflecting during the twisting process, reduce the wear and damage of the metal monofilament during the twisting process, thereby improving the stability of the twisting and the quality of the final product.

[0045] The scheme of the embodiment of the present application is described below with reference to the accompanying drawings.

[0046] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a guiding device for a metal single-wire twisted conductor, which is used to guide the center conductor and the metal monofilament to be twisted, and includes a guide seat 100, a wire guide wheel 300 and a pressing wheel 400.

[0047] Among them, the guide seat 100 has a through hole 101 for guiding the central conductor, and a plurality of wire holes 102 are arranged at intervals in the circumferential direction of the guide seat 100, and the wire holes 102 are used to guide the metal monofilament to pass through; at least two guide wheels are arranged on the guide seat 100, and are respectively located on both sides of the wire hole 102 to jointly clamp the metal monofilament passing through the wire hole 102; at least one of the two guide wheels located on both sides of the wire hole 102 moves relative to the other, and the two guide wheels approach or move away from each other along the radial direction of the guide seat 100 to adjust the preload force of the metal monofilament passing through the wire hole 102.

[0048] It can be seen from the above description that the guide device of the embodiment of the present application, by setting the guide wheel to an adjustable state capable of sliding relative to the guide seat 100, is convenient for changing the pre-forming position of the metal monofilament in advance during the production debugging process, thereby ensuring that the tension of the metal monofilament is consistent during the twisting process, thereby reducing the breakage of the metal monofilament. The two guide wheels jointly pre-tighten the metal monofilament to prevent the metal monofilament from sliding or deflecting during the twisting process, reduce the wear and damage of the metal monofilament during the twisting process, thereby improving the stability of the twisting and the quality of the final product.

[0049] It should be noted that the metal monofilament in the embodiment of the present application is described by taking aluminum metal monofilament as an example, which will not be described in detail below.

[0050] During the production process of the metal single-wire twisted conductor, as the center conductor is guided through the through hole 101 of the guide seat 100, the metal single wires arranged on the guide seat 100 are guided and transported by two guide wheels and then twisted on the center conductor, so that the center conductor is covered with the metal single wires to form a twisted conductor.

[0051] like Figure 2 As shown, in the embodiment of the present application, at least two guide wheels include a wire passing guide wheel 300 and a pressure wheel 400 respectively located on both sides of the wire passing hole 102; the guide device also includes a mounting ring plate 200, the mounting ring plate 200 is fixed on the guide seat 100, the wire passing guide wheel 300 is slidably connected to the mounting ring plate 200, and the pressure wheel 400 is fixed on the mounting ring plate 200; the mounting ring plate 200 is provided with a through hole 201 corresponding to the wire passing hole 102, and a center hole corresponding to the through hole 101.

[0052] The mounting ring plate 200 is coaxially arranged with the guide seat 100, the through hole 201 and the wire hole 102 are coaxially arranged, the center hole and the through hole 101 are coaxially arranged, and the mounting ring plate 200 can be integrally formed with the guide seat 100, or connected by a fastener 302 that penetrates both, and the present application does not make an absolute limitation on this.

[0053] The mounting ring plate 200 provides a stable mounting base and supporting structure for the wire guide wheel 300 and the pressure wheel 400, and is also helpful in simplifying the installation process of the wire guide wheel 300 and the pressure wheel 400, making it convenient to operate on the mounting ring plate 200 when maintaining, replacing and adjusting the position of the wire guide wheel 300.

[0054] Furthermore, an adjustment slot 202 is provided on the mounting ring plate 200, and the adjustment slot 202 extends in the radial direction of the mounting ring plate 200; the wire passing guide wheel 300 is connected to an adjustment support rod 301, and the end of the adjustment support rod 301 away from the wire passing guide wheel 300 passes through the adjustment slot 202 and is slidably connected to the guide seat 100, so that the wire passing guide wheel 300 can be synchronously displaced on the mounting ring plate 200 with the adjustment support rod 301.

[0055] In the above embodiment, the adjustment slot 202 is a through slot. Since the adjustment support rod 301 passes through the adjustment slot 202 and is slidably arranged on the guide seat 100, the adjustment slot 202 can provide a supporting force for the adjustment support rod 301, thereby enhancing the support stability of the adjustment support rod 301 on the wire guide wheel 300. In addition, the length of the adjustment slot 202 is adapted to the displacement path setting of the adjustment support rod 301. By observing the relative position of the adjustment support rod 301 on the adjustment slot 202, it is also convenient to determine the displacement distance of the wire guide wheel 300 on the mounting ring plate 200, so that the wire guide wheel 300 is easier to adjust and adapt to the metal monofilament with different pre-tightening requirements.

[0056] like Figure 3 As shown, as a replaceable embodiment, a slide groove 103 is provided on the guide seat 100, and a penetrating adjustment port 104 is provided on the bottom or side wall of the slide groove 103, and the adjustment support rod 301 is slidably connected in the slide groove 103; one end of the adjustment support rod 301 extending into the slide groove 103 is connected with a fastener 302, and a matching piece 105 is extended into the guide seat 100 through the adjustment port 104, and the fastener 302 is connected to the matching piece 105, so that the adjustment support rod 301 is fixed in the slide groove 103.

[0057] like Figure 3 As shown, the slide groove 103 is a rectangular blind groove, and the end of the adjusting support rod 301 slides in the slide groove 103. The side wall of the slide groove 103 is provided with a penetrating adjustment port 104. The matching piece 105 passes through the adjustment port 104 and is connected to the fastener 302 located inside the slide groove 103, so that the adjusting support rod 301 is fixed in the slide groove 103.

[0058] For example, Figure 4As shown, the fastener 302 is a slider with an internal thread section, which faces the side with the adjustment port 104. The fitting 105 is a T-bolt passing through the adjustment port 104. When the adjustment support rod 301 needs to be fixed in the slide groove 103, the fitting 105 passes through the adjustment port 104 and is screwed together with the internal thread section to tighten. The clamping force of the fitting 105 and the fastener 302 is used to increase the friction between the adjustment support rod 301 and the side wall of the slide groove 103, thereby fixing the adjustment support rod 301 in the slide groove 103.

[0059] In the embodiment of the present application, the adjustment port 104 can also be set at the bottom of the groove, that is, the adjustment port 104 passes through the guide seat 100, and the matching piece 105 can be inserted into the adjustment port 104 from the back side of the guide seat 100 (the side opposite to the mounting ring plate 200) to be connected with the fastener 302. The width of the adjustment port 104 should be smaller than the groove width to prevent the adjustment support rod 301 from falling off from the adjustment port 104.

[0060] As a replaceable embodiment, the fastener 302 has internal thread sections on both sides of the side walls of the slide groove 103, and the two side walls of the slide groove 103 are provided with adjustment openings 104. A matching piece 105 is inserted into each adjustment opening 104, and the fastener 302 is fixed by using two matching pieces 105. This design can further enhance the fastening force of the matching piece 105 on the adjustment support rod 301, ensuring that the adjustment support rod 301 will not be offset due to the guiding shaking of the metal monofilament.

[0061] It should be noted that, in the embodiment of the present application, the connection method between the adjusting support rod 301 and the guide seat 100 is only used as an example. Figure 3 and Figure 4 The schematic diagram is a simplified schematic diagram of the connection between the adjusting support rod 301 and the guide seat 100. In some embodiments, other components for completing the normal connection should be provided between the adjusting support rod 301 and the guide seat 100, for example, a bolt member passing through the adjusting support rod 301, which will not be described in detail in the embodiments of the present application.

[0062] like Figure 1 As shown, in some embodiments, the wire passing guide wheel 300 has a plurality of wire passing guide wheels 300 that are evenly arranged in the circumference of the ring mounting ring plate 200, and the clamping wheels 400 are arranged corresponding to the wire passing guide wheels 300, and each wire passing guide wheel 300 is located on the same circumferential line, and each clamping wheel 400 is located on the same circumferential line.

[0063] The number of the above-mentioned wire guide wheels 300 is set with reference to the arrangement specifications of the metal monofilaments to be twisted. For example, the twisting arrangement of the metal monofilaments is a twisting sequence of 6+12+18+24+30+36. Correspondingly, along the conveying direction of the metal monofilaments, a total of 6 guide devices are arranged, and the numbers of the wire guide wheels 300 on the guide devices are 6, 12, 18, 24, 30 and 36, respectively corresponding to the numbers of the metal monofilaments to be twisted. Figure 1 In the figure, there are 24 wire-passing guide wheels 300, and the pressing wheels 400 are arranged corresponding to the wire-passing guide wheels 300.

[0064] Exemplarily, when the twisting sequence of the metal monofilaments is 6+12+18+24+30+36, according to the cross-sectional size of the different twisted central conductors, the pre-forming depth of the metal monofilaments by the wire guide wheel 300 and the clamping wheel 400 is generally 5mm~10mm, specifically 5mm, 8mm or 10mm.

[0065] At the same time, according to the stranding conveying direction, the distance between the guide device and the stranding equipment from the first section to the sixth section is controlled to be 10mm~15mm, 15mm~20mm, 20mm~25mm, 25mm~30mm, 30mm~35mm, 35mm~40mm respectively. Specifically, the distance between the guide device and the stranding equipment from the first section to the sixth section is: 10mm, 15mm, 20mm, 25mm, 30mm, 35mm. In this way, the tension of each section of the metal monofilament is controlled within a suitable range, so that the aluminum monofilament has a good forming effect and will not break due to excessive tension.

[0066] like Figure 2 As shown, in some embodiments, any at least two adjacent wire guide wheels 300 are rotatably connected via a rotating shaft 303 , and a rotating shaft 303 is connected to the guide seat 100 via at least two adjusting support rods 301 .

[0067] Exemplarily, two adjacent wire guide wheels 300 are synchronously driven to move in the radial direction through a rotating shaft 303, and the midpoint and both ends of the rotating shaft 303 are respectively connected to the slide groove 103 of the guide seat 100 through an adjustment support rod 301, that is, the two wire guide wheels 300 correspond to one rotating shaft 303 and three adjustment support rods 301. This design can realize the synchronous adjustment of the two wire guide wheels 300, simplify the operation, and ensure that the two adjacent wire guide wheels 300 maintain a consistent movement path during the adjustment process, ensure that the preload and tension of multiple metal monofilaments are consistent, and improve the twisting quality.

[0068] like Figure 2 and Figure 4As shown, at least two adjusting rods 301 on the same rotating shaft 303 are commonly connected to a sliding rod 304 . The sliding rod 304 is slidably disposed in the sliding groove 103 and connected to the matching piece 105 .

[0069] Here, since the end of each adjusting support rod 301 is connected with a fastener 302, among the three adjusting support rods 301 on the two wire-passing guide wheels 300, the three fasteners 302 are connected together through a sliding rod 304, and the three adjusting support rods 301 are synchronously displaced in the slide groove 103 through the penetrating sliding rod 304. This design can further improve the synchronous mobility of the adjusting support rod 301, ensuring that the two adjacent wire-passing guide wheels 300 are adjusted and displaced.

[0070] like Figure 2 As shown, in some embodiments, the guiding device for the metal single-wire twisted conductor also includes a vertical rod 401, which is fixedly connected to the mounting ring plate 200, and a clamping wheel 400 is connected to the vertical rod 401. The length of the vertical rod 401 along the axial direction of the mounting ring plate 200 is adjustable.

[0071] The vertical pole 401 is fixed to the mounting ring plate 200 by bolts passing through it. For example, the vertical pole 401 is a telescopic sleeve rod, and the telescopic length of the vertical pole 401 is adjusted by bolts passing through the interior of the vertical pole 401. The length of the vertical pole 401 can be adjusted, which can facilitate the adjustment of the tension and pre-tightening angle of the metal monofilament clamped between the clamping wheel 400 and the wire guide wheel 300, thereby improving the guiding property and flexibility of the guiding device.

[0072] It should be noted that, in the embodiment of the present application, the pinching wheel 400 and / or the wire-passing guide wheel 300 are provided with a guide groove 402 for guiding the metal monofilament, and the pinching wheel 400 and / or the wire-passing guide wheel 300 are rubber wheels.

[0073] Specifically, the pressing wheel 400 and the wire guide wheel 300 are both provided with a guide groove 402, and the shape of the guide groove 402 is based on the shape of the adapted heterosexual metal monofilament, which is not absolutely limited in the embodiment of the present application.

[0074] The clamping wheel 400 and the wire guide wheel 300 are both rubber wheels, or the contact surfaces of the clamping wheel 400 and the wire guide wheel 300 for contacting the metal monofilament are rubber surfaces. This design can further reduce the wear of the clamping wheel 400 and the wire guide wheel 300 on the metal monofilament, and prevent the metal monofilament from breaking or burrs.

[0075] As an alternative embodiment, the pressing wheel 400 and the wire guide wheel 300 may also be made of nylon or ceramic materials, as long as the wear on the metal monofilament can be reduced.

[0076] An embodiment of the present application also provides a cable production device, including a twisting device and a guide device for the metal single-wire twisted conductor in any of the above embodiments arranged on one side of the twisting device, and the guide device is used to transport the metal single wire to the twisting device.

[0077] Since the cable production equipment comprises the above-mentioned guiding device for the metal single-wire twisted conductor, it has all the advantages of the guiding device.

[0078] like Figure 5 As shown, a powder cleaning component is installed on the side of the stranding equipment facing the guide device. When the metal monofilaments are fed from left to right, lubricant can be automatically dripped at the stranding head corresponding to the powder cleaning component (in front of the stranding die) to achieve the effects of lubrication, cleaning and cooling, so that the center conductor and the metal monofilaments can be twisted normally, reducing the breakage of the metal monofilaments and the excessive amount of aluminum powder on the surface.

[0079] Figure 5 In the invention, the powder cleaning component includes a main die sleeve 501 and a hopper 502 arranged on the main die sleeve 501. Lubricant can be added into the hopper 502 for use. The hopper 502 is provided with a knob 503 for controlling the amount of lubricant, which can control the amount of lubricant. The twisting die can be installed in the die sleeve and fastened by bolts. The bolts are evenly fixed around the circumference of the main die sleeve 501 to enhance the fastening effect. The lubricant is generally alcohol, which can not only cool the heat generated by the twisting of metal monofilaments, but also clean the aluminum powder and play a lubricating role. The powder cleaning component can reduce the breakage of aluminum monofilaments caused by the heat generated by twisting and aluminum powder.

[0080] Figure 6 The finished cable is twisted by the guide device and twisting equipment in the embodiment of the present application, and includes three water-blocking aluminum conductors 601, a conductor shielding layer 602, a cross-linked polyethylene insulation layer 603, an insulation shielding layer 604, a semiconductor water-blocking tape wrapping layer 605, a lead sheath shielding layer 606, a polyethylene sheath layer 607, an optical unit 608, a filling unit 609, a cabling tape layer 610, a PP rope armor cushion layer 611, a steel wire armor layer 612 and a PP rope outer layer 613.

[0081] Among them, from the inside to the outside, the semi-finished cable core is composed of a water-blocking aluminum conductor 601, a conductor shielding layer 602, a cross-linked polyethylene insulation layer 603, an insulation shielding layer 604, a semiconductor water-blocking tape wrapping layer 605, a lead sheath shielding layer 606, and a polyethylene sheath layer 607. Three semi-finished cable cores are twisted into a cable with an optical unit 608, and a filling unit 609 is used for filling. After the cabling, the outer layers are respectively arranged as a cable wrapping tape layer 610, a PP rope armor cushion layer 611, a metal wire armor layer, and a PP rope outer sheath layer 613.

[0082] In the above embodiment, water-blocking powder is used on the stranded surface of each layer of water-blocking aluminum conductor 601, and the conductor surface is longitudinally wrapped with a semiconducting water-blocking tape. The water-blocking powder and the semiconducting water-blocking tape have the effect of swelling when exposed to water, so that the longitudinal water-blocking performance is better and meets the requirements of large water depth applications.

[0083] The conductor shielding layer 602 is made of semi-conductive cross-linked polyethylene shielding material and is evenly extruded on the water-blocking aluminum conductor 601 to prevent partial discharge caused by gaps between the conductor and the insulation layer. The cross-linked polyethylene insulation layer 603 is made of ultra-clean cross-linked polyethylene material and is evenly extruded on the conductor shielding layer 602. The ultra-clean cross-linked polyethylene material can ensure the stability of the circuit when the submarine cable is running. The insulation shielding layer 604 is made of semi-conductive cross-linked polyethylene shielding material and is evenly extruded on the cross-linked polyethylene insulation layer 603 to evenly insulate the outer surface electric field and protect the insulation from damage.

[0084] The inner semi-conductive water-tight tape wrapping layer 605 is wrapped around the insulating shielding layer 604 in an overlapping manner, and the overlapping rate is controlled at 10% to 30%, which can meet the water permeability distance under the lead sheath specified by the standard. A color ribbon is embedded for color differentiation. The polyethylene sheath layer 607 uses high-density semi-conductive polyethylene sheath material to be synchronously extruded on the lead sheath shielding layer 606. The synchronous extrusion saves production time and improves production efficiency. The filling unit 609 is a molded filling strip, and the optical unit 608 is in the filling strip to protect the optical unit 608 from damage. The semi-conductive filling strip makes it easier for short-circuit current to conduct and discharge. The cable wrapping tape layer 610 uses a rubber-coated cotton cloth tape to tighten the cable core after the three-phase sheath core and the filling strip optical unit 608 are twisted. The PP rope armor cushion layer 611 is used to protect the sheath wire core. The metal wire armor layer uses galvanized medium carbon metal wire. The metal wire tensile strength is ≥600MPa. Compared with conventional low-carbon galvanized metal wire armor, it has better mechanical properties and is lighter in overall weight. The PP rope outer layer 613 protects the steel wire armor layer 612.

[0085] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0086] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A guide device for a metal single-wire twisted conductor, used for guiding a center conductor and a metal single wire to be twisted, characterized in that: include: A guide seat (100) having a through hole (101) for guiding the central conductor, a plurality of wire passing holes (102) being arranged at intervals in the circumferential direction of the guide seat (100), the wire passing holes (102) being used to guide the metal monofilament to pass through; At least two guide wheels are provided on the guide seat (100) and are respectively located on two sides of the wire passing hole (102) to jointly clamp the metal monofilament passing through the wire passing hole (102); At least one of the two guide wheels located on both sides of the wire passing hole (102) moves relative to the other, and the two guide wheels move toward or away from each other along the radial direction of the guide seat (100) to adjust the preload force of the metal monofilament passing through the wire passing hole (102).

2. The guide device for a metal single-wire stranded conductor according to claim 1, characterized in that: The at least two guide wheels include a wire passing guide wheel (300) and a pressing wheel (400) respectively located on two sides of the wire passing hole (102); The guiding device also includes: The mounting ring plate (200) is fixed on the guide seat (100), the wire guide wheel (300) is slidably connected to the mounting ring plate (200), and the clamping wheel (400) is fixed on the mounting ring plate (200); the mounting ring plate (200) is provided with a through hole (201) corresponding to the wire hole (102), and a center hole corresponding to the through hole (101).

3. The guide device for a metal single-wire stranded conductor according to claim 2, characterized in that: The mounting ring plate (200) is provided with an adjustment slot (202), and the adjustment slot (202) extends along the radial direction of the mounting ring plate (200); The wire passing guide wheel (300) is connected to an adjustment support rod (301), and one end of the adjustment support rod (301) facing away from the wire passing guide wheel (300) passes through the adjustment slot (202) and is slidably connected to the guide seat (100), so that the wire passing guide wheel (300) is synchronously displaced on the mounting ring plate (200) along with the adjustment support rod (301).

4. The guide device for a metal single-wire stranded conductor according to claim 3, characterized in that: The guide seat (100) is provided with a slide groove (103), the bottom or side wall of the slide groove (103) is provided with a penetrating adjustment opening (104), and the adjustment support rod (301) is slidably connected to the slide groove (103); One end of the adjusting support rod (301) extending into the slide groove (103) is connected to a fastener (302); a matching piece (105) extends into the guide seat (100) through the adjusting opening (104); the fastener (302) is connected to the matching piece (105) so that the adjusting support rod (301) is fixed in the slide groove (103).

5. The guide device for a metal single-wire stranded conductor according to claim 4, characterized in that: The wire passing guide wheels (300) have a plurality of uniformly arranged circumferentially around the mounting ring plate (200), the clamping wheels (400) are arranged corresponding to the wire passing guide wheels (300), each of the wire passing guide wheels (300) is located on the same circumferential line, and each of the clamping wheels (400) is located on the same circumferential line.

6. The guide device for a metal single-wire stranded conductor according to claim 5, characterized in that: At least two of any adjacent wire-passing guide wheels (300) are rotatably connected via a rotating shaft (303), and the rotating shaft (303) is connected to the guide seat (100) via at least two adjusting support rods (301).

7. The guide device for a metal single-wire stranded conductor according to claim 6, characterized in that: At least two adjusting support rods (301) on the same rotating shaft (303) are commonly connected to a sliding rod (304); the sliding rod (304) is slidably disposed in the sliding groove (103) and is connected to the matching piece (105).

8. The guide device for a metal single-wire stranded conductor according to any one of claims 2 to 7, characterized in that: Also includes: The vertical rod (401) is fixedly connected to the mounting ring plate (200), the vertical rod (401) is connected to the pressing wheel (400), and the length of the vertical rod (401) along the axial direction of the mounting ring plate (200) is adjustable.

9. The guide device for a metal single-wire stranded conductor according to any one of claims 2 to 7, characterized in that: The pressing wheel (400) and / or the wire-passing guide wheel (300) are provided with a guide groove (402) for guiding the metal monofilament, and the pressing wheel (400) and / or the wire-passing guide wheel (300) are rubber wheels.

10. A cable production equipment, characterized in that: A guide device for a metal single-wire stranded conductor according to any one of claims 1 to 9, comprising a stranding device and arranged on one side of the stranding device, wherein the guide device is used to transport the metal single wire to the stranding device.

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