CN102280172A - Four-core cable and manufacturing method thereof - Google Patents
Four-core cable and manufacturing method thereof Download PDFInfo
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- CN102280172A CN102280172A CN2011102267916A CN201110226791A CN102280172A CN 102280172 A CN102280172 A CN 102280172A CN 2011102267916 A CN2011102267916 A CN 2011102267916A CN 201110226791 A CN201110226791 A CN 201110226791A CN 102280172 A CN102280172 A CN 102280172A
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- conductor
- isolating bar
- isolating
- obturator
- bores
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000004020 conductor Substances 0.000 claims abstract description 423
- 241000108463 Hygrophila <snail> Species 0.000 claims description 56
- 229910052751 metal Inorganic materials 0.000 claims description 53
- 239000002184 metal Substances 0.000 claims description 53
- 238000000465 moulding Methods 0.000 claims description 53
- 239000011248 coating agent Substances 0.000 claims description 50
- 238000000576 coating method Methods 0.000 claims description 50
- 239000011148 porous material Substances 0.000 claims description 30
- 229920003023 plastic Polymers 0.000 claims description 27
- 239000004033 plastic Substances 0.000 claims description 27
- 239000011241 protective layer Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 20
- 230000015572 biosynthetic process Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 description 24
- 239000004700 high-density polyethylene Substances 0.000 description 24
- 229920001684 low density polyethylene Polymers 0.000 description 24
- 239000004702 low-density polyethylene Substances 0.000 description 24
- -1 polyethylene Polymers 0.000 description 24
- 239000004743 Polypropylene Substances 0.000 description 14
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 12
- 239000004698 Polyethylene Substances 0.000 description 12
- 229920000092 linear low density polyethylene Polymers 0.000 description 12
- 239000004707 linear low-density polyethylene Substances 0.000 description 12
- 229920001179 medium density polyethylene Polymers 0.000 description 12
- 239000004701 medium-density polyethylene Substances 0.000 description 12
- 229920000573 polyethylene Polymers 0.000 description 12
- 229920000098 polyolefin Polymers 0.000 description 12
- 229920001155 polypropylene Polymers 0.000 description 12
- 239000000779 smoke Substances 0.000 description 12
- 230000004888 barrier function Effects 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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Abstract
The invention belongs to the technical field of electric wires and cables and particularly relates to a four-core cable. The four-core cable comprises four conductors and a sheath layer and is characterized by also comprising a filling body positioned in the center and four isolating bars, wherein the four conductors and the four isolating bars are tightly attached to the filling body and are distributed along the outer circumference of the filling body; a first isolating bar is positioned between a first conductor and a second conductor; a second isolating bar is positioned between the second conductor and a third conductor; a third isolating bar is positioned between the third conductor and a fourth conductor; a fourth isolating bar is positioned between the fourth conductor and the first conductor; the four isolating bars and the sheath layer are integrally molded; the four isolating bars are protruded from the inner wall of the sheath layer to the filling body; on any cross section, the curvatures of the surfaces on which the isolating bars and the conductors are attached to the outer surface of the filling body are equal; and the sheath layer is used for covering the four isolating bars and the four conductors. The four-core cable has the advantages of low consumption of the sheath layer, thinner outer diameter, lower cost in various aspects, simpler production process, higher speed, simple production method and the like.
Description
Technical field
The invention belongs to technical field of electric wires and cables, especially quad and preparation method thereof.
Background technology
In the prior art, cable is widely used, 4 core cables commonly used as depicted in figs. 1 and 2, Fig. 1 is a schematic perspective view, Fig. 2 is the front view of Fig. 1, this cable be by four of parallel placement or mutual stranded placement thoroughly do away with the edge cores, and integral coating live this four restrictive coating 5 that thoroughly does away with the edge core and constitute; First insulated wire cores is made of first insulating barrier 11 that is positioned at the first inner conductor 12 and envelopes first conductor; Second insulated wire cores is made of second insulating barrier 21 that is positioned at the second inner conductor 22 and envelopes second conductor; The 3rd insulated wire cores is made of the 3rd insulating barrier 31 that is positioned at the 3rd inner conductor 32 and envelopes the 3rd conductor; The 4th insulated wire cores is made of the 4th insulating barrier 41 that is positioned at the 4th inner conductor 42 and envelopes the 4th conductor.Because this kind cable is used for transmitting electric load, in order to reach insulating requirements, insulating barrier need reach the thickness of industry standard regulation usually, and under the same voltage withstand class, along with the increase of ampacity, the thickness of insulating barrier must thicken; On the other hand, have certain mechanical strength and anti-wear performance in order to make cable, so restrictive coating also needs enough thickness.Therefore, the cost of this kind cable is higher.On the one hand, the conductor of this kind cable forms by tiny wire is stranded again, and a cable need be made through 4 synnemas, 4 minor insulation cores, 1 sheath extrudes so produce; Because the speed that insulated wire cores is made is slower, therefore, has restricted speed of production.
Summary of the invention
In order to address the above problem, one of purpose of the present invention provides the cheaper quad of a kind of cost, makes product more competitive; Two of purpose of the present invention is that the insulated wire cores making step that reduces cable makes speed of production faster; Three of purpose of the present invention is to disclose the manufacture method of this kind cable, and they are realized by the following technical solutions:
A kind of quad includes first conductor 12, second conductor 22, the 3rd conductor 32, the 4th conductor 42, restrictive coating 5; It is characterized in that also comprising one is positioned at central authorities and is columniform obturator 1, one piece first isolating bar 61, one piece second isolating bar 62, one piece the 3rd isolating bar 63, the 4th isolating bar 64; Four conductors, four isolating bars all are close to obturator and are distributed along the obturator outer circumference; First isolating bar is right after between first conductor and second conductor and with first conductor and second conductor; Second isolating bar is right after between second conductor and the 3rd conductor and with second conductor and the 3rd conductor; The 3rd isolating bar is right after between the 3rd conductor and the 4th conductor and with the 3rd conductor and the 4th conductor; The 4th isolating bar is right after between the 4th conductor and first conductor and with the 4th conductor and first conductor; On arbitrary cross section, the upper surface of arbitrary isolating bar and lower surface all equate with the curvature of lower surface to the center curvature of obturator and the upper surface of this obturator; Restrictive coating envelopes four isolating bars, four conductors; The vertical straight-line extension of arbitrary isolating bar and be parallel with the central axis of obturator; The vertical straight-line extension of arbitrary conductor and be parallel with the central axis of obturator.
Above-mentioned described quad it is characterized in that also being coated with protective layer outside the cable core that four isolating bars and four conductors form, and protective layer is positioned within the restrictive coating.
Above-mentioned described quad is characterized in that described protective layer is vertically to coat or spiral is coated on the cable core, and when vertically coating, the lap width of protective layer is 2mm～4mm; When spiral coated, the overlapping width of the overlap joint of protective layer was 0.15 times a protective layer width.
Above-mentioned described quad is characterized in that described protective layer is mica tape or PVC band or PP band or waterstop.
A kind of quad includes first conductor 12, second conductor 22, the 3rd conductor 32, the 4th conductor 42, restrictive coating 5; It is characterized in that also comprising one is positioned at central authorities and is columniform obturator 1, one piece first isolating bar 61, one piece second isolating bar 62, one piece the 3rd isolating bar 63, the 4th isolating bar 64; Four conductors, four isolating bars all are close to obturator and are distributed along the obturator outer circumference; First isolating bar is right after between first conductor and second conductor and with the conductor and second conductor; Second isolating bar is right after between second conductor and the 3rd conductor and with second conductor and the 3rd conductor; The 3rd isolating bar is right after between the 3rd conductor and the 4th conductor and with the 3rd conductor and the 4th conductor; The 4th isolating bar is right after between the 4th conductor and first conductor and with the 4th conductor and first conductor; Four isolating bars and restrictive coating are formed in one; Four isolating bars protrude to the obturator direction from the inwall of restrictive coating; On arbitrary cross section, all isolating bars, all conductors equate with the curvature on the surface that the outer epiphase of obturator pastes; Restrictive coating envelopes four isolating bars, four conductors.
Above-mentioned described quad is characterized in that the vertical straight-line extension of described arbitrary isolating bar and is parallel with the central axis of obturator; The vertical straight-line extension of arbitrary conductor and be parallel with the central axis of obturator.
Above-mentioned described quad is characterized in that the vertical curve of described arbitrary isolating bar extends and is parallel with the central axis of obturator, and vertical direction of a curve of four isolating bars is consistent; The vertical curve of arbitrary conductor extends and is parallel with the central axis of obturator, and vertical direction of a curve of four conductors is consistent; And vertical direction of a curve of isolating bar is consistent with vertical direction of a curve of conductor.
Above-mentioned described any quad, the material that it is characterized in that described obturator are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or poly-low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE) or expanded material.
Above-mentioned described any quad, the material that it is characterized in that described first isolating bar are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or poly-low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any quad, the material that it is characterized in that described second isolating bar are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or poly-low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any quad, the material that it is characterized in that described the 3rd isolating bar are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or poly-low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any quad, the material that it is characterized in that described the 4th isolating bar are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or poly-low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any quad, the material that it is characterized in that described restrictive coating are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or poly-low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any quad, the complex that it is characterized in that serving as reasons described first conductor stranded moulding of many one metal wires synnema forms.
Above-mentioned described any quad, the composite conductor that it is characterized in that serving as reasons described second conductor stranded moulding of many one metal wires synnema forms.
Above-mentioned described any quad, the complex that it is characterized in that serving as reasons described the 3rd conductor the stranded moulding of many one metal wires synnema forms.
Above-mentioned described any quad, the composite conductor that it is characterized in that serving as reasons described the 4th conductor the stranded moulding of many one metal wires synnema forms.
Above-mentioned described any quad it is characterized in that described wire is copper wire or aluminium wire or copper-clad aluminium wire or copper-clad magnesium silk or copper-clad magnadure silk, and diameter wiry is 0.01mm～0.60mm.
Above-mentioned described any quad is characterized in that described synnema is stranded for the one-way spiral mode.
Above-mentioned described any quad is characterized in that shape of cross section, the size of described four conductors is duplicate; Perhaps wherein the shape of cross section of three conductors, size are duplicate, and the shape of cross section of an other conductor, size are different with other three conductors.
A kind of method of making quad is characterized in that it comprises step:
Form the step of four conductors: at first the stranded moulding of many one metal wires synnema is formed first conductor, secondly the stranded moulding of many one metal wires synnema is formed second conductor, once more the stranded moulding of many one metal wires synnema is formed the 3rd conductor, the more stranded moulding of many one metal wires synnema is formed the 4th conductor; Or the stranded moulding of many one metal wires synnema formed a conductor, then this conductor is cut the branch dish and form first to fourth conductor; First to fourth conductor all is coiled on the corresponding dish tool;
Form the step of obturator by plastic extruding machine, be extruded into behind the obturator around being placed on the dish tool;
Form the step of four isolating bars: form four isolating bars by plastic extruding machine, be contained in respectively on the different dish tools, form first to fourth isolating bar; Or by isolating bar of plastic extruding machine formation, then this isolating bar is carried out three times and cut, three that cut are contained in respectively on the different dish tools, have formed first to fourth isolating bar like this;
Restrictive coating forms step: the dish tool that isolating bar, conductor, obturator will be housed is placed on the draining provisions respectively; Traction is placed on the fixed mould centre bore according to obturator, and first isolating bar, second conductor, second isolating bar, the 3rd conductor, the 3rd isolating bar, the 4th conductor, the 4th isolating bar, first conductor, the mode that first isolating bar is clockwise or counterclockwise are passed the fixed mould periphery holes; Core rod medium pore and the periphery holes that above-mentioned isolating bar, conductor, obturator are passed the sheath extruder respectively again by the mode of passing fixed mould again, thus cable core formed; The traction cable core also extrudes protective cover material formation quad thereon.
A kind of method of making quad is characterized in that it comprises step:
Form the step of four conductors: at first the stranded moulding of many one metal wires synnema is formed first conductor, secondly the stranded moulding of many one metal wires synnema is formed second conductor, once more the stranded moulding of many one metal wires synnema is formed the 3rd conductor, the more stranded moulding of many one metal wires synnema is formed the 4th conductor; Or the stranded moulding of many one metal wires synnema formed a conductor, then this conductor is cut the branch dish and form first to fourth conductor; First to fourth conductor all is coiled on the corresponding dish tool;
Form the step of obturator by plastic extruding machine, be extruded into behind the obturator around being placed on the dish tool;
Form the step of four isolating bars: form four isolating bars by plastic extruding machine, be contained in respectively on the different dish tools, form first to fourth isolating bar; Or by isolating bar of plastic extruding machine formation, then this isolating bar is carried out three times and cut, three that cut are contained in respectively on the different dish tools, have formed first to fourth isolating bar like this;
Restrictive coating forms step: the dish tool that isolating bar, conductor, obturator will be housed is placed on the draining provisions respectively; Traction is placed on the fixed mould centre bore according to obturator, and first isolating bar, second conductor, second isolating bar, the 3rd conductor, the 3rd isolating bar, the 4th conductor, the 4th isolating bar, first conductor, the mode that first isolating bar is clockwise or counterclockwise are passed the fixed mould periphery holes; The outer rim of the sub-circular that forms at four conductors and four isolating bars is outer vertically wraps up or spiral wraps up a protective layer; Core rod medium pore and the periphery holes that above-mentioned isolating bar, conductor, obturator are passed the sheath extruder respectively again by the mode of passing fixed mould again, thus cable core formed; The traction cable core also extrudes protective cover material formation quad thereon.
A kind of method of making quad is characterized in that it comprises step:
Form the step of four conductors: at first the stranded moulding of many one metal wires synnema is formed first conductor, secondly the stranded moulding of many one metal wires synnema is formed second conductor, once more the stranded moulding of many one metal wires synnema is formed the 3rd conductor, the more stranded moulding of many one metal wires synnema is formed the 4th conductor; Or the stranded moulding of many one metal wires synnema formed a conductor, then this conductor is cut the branch dish and form first to fourth conductor; First to fourth conductor all is coiled on the corresponding dish tool;
Form the step of obturator by plastic extruding machine, be extruded into behind the obturator around being placed on the dish tool;
Form the step of four isolating bars: form four isolating bars by plastic extruding machine, be contained in respectively on the different dish tools, form first to fourth isolating bar; Or by isolating bar of plastic extruding machine formation, then this isolating bar is carried out three times and cut, three that cut are contained in respectively on the different dish tools, have formed first to fourth isolating bar like this;
Restrictive coating forms step: the dish tool that conductor, obturator will be housed is placed on the draining provisions respectively; Traction is placed on the fixed mould centre bore according to obturator, and second conductor, the 3rd conductor, the 4th conductor, the mode that first conductor is clockwise or counterclockwise are passed the fixed mould periphery holes; Draw the core rod medium pore that above-mentioned obturator passes the sheath extruder again, with second conductor, the 3rd conductor, the 4th conductor, traction of first conductor and second conductor bores of passing the sheath extruder respectively, the 3rd conductor bores, the 4th conductor bores and first conductor bores, second conductor bores, the 3rd conductor bores, the 4th conductor bores, first conductor bores is to arrange clockwise or counterclockwise, conductor bores is positioned at the core rod medium pore outside, four conductor bores are disconnected mutually, and four conductor bores do not communicate with the core rod medium pore, a part that forms the wall body of conductor bores is to connect together with the wall body that forms the core rod medium pore, and first gap is arranged between the wall body of the wall body of first conductor bores and second conductor bores, second gap is arranged between the wall body of the wall body of second conductor bores and the 3rd conductor bores, between the wall body of the wall body of the 3rd conductor bores and the 4th conductor bores third space is arranged, the 4th gap is arranged between the wall body of the wall body of the 4th conductor bores and first conductor bores, sheath is extruded on conductor when forming restrictive coating, four gaps, first gap to the have formed first isolating bar to the, four isolating bars respectively, isolating bar is close to obturator, and isolating bar and restrictive coating are one.
The method of above-mentioned described quad is characterized in that conductor bores is consistent with the longitudinal extension direction core rod medium pore and conductor bores parallels with the axis of core rod medium pore; The conductor of the quad of producing in this case,, isolating bar are parallel with obturator all the time.
The method of above-mentioned described quad is characterized in that conductor bores is consistent with the longitudinal extension direction core rod medium pore and the axis of conductor bores and core rod medium pore is uneven and the direction unanimity of four conductor bores; In this case, the isolating bar of the quad of producing, conductor are compared with obturator and are presented the one-way spiral shape, because conductor length is greater than obturator length, so this cable has better environmental adaptability.
In the product of the present invention, the wire bundle silk formed conductor and be shaped to unique shape and separated by isolating bar, extrusion molding restrictive coating outside again, so the consumption of restrictive coating significantly reduces among the present invention, and the product external diameter is littler, cost is lower.The inventive method is simple, and operation is few, and has omitted slow-paced insulated wire cores manufacturing process, so speed of production is faster, production cost is lower.
The present invention has following beneficial effect: the consumption of product restrictive coating is few, and external diameter is thinner, and every cost is lower, and production process is simpler, speed is faster, production method is simple.
Description of drawings
Fig. 1 is the part schematic perspective view of the quad of prior art;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the perspective view that the invention process example 1 local solution is cut open;
Fig. 4 is the perspective view of the partly cut-away of first isolating bar used in the invention process example 1;
Fig. 5 is the front view after Fig. 4 amplifies;
Fig. 6 is the front view after Fig. 3 amplifies;
Fig. 7 is the perspective view that the invention process example 2 local solutions are cut open.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.Embodiment 1, embodiment 2 are the embodiment of product of the present invention; Embodiment 3～embodiment 5 is the embodiment of the inventive method.
Ask for an interview Fig. 3 to Fig. 6, and in conjunction with Fig. 1 and Fig. 2, a kind of quad includes first conductor 12, second conductor 22, the 3rd conductor 32, the 4th conductor 42, restrictive coating 5; It is characterized in that also comprising one is positioned at central authorities and is columniform obturator 1, one piece first isolating bar 61, one piece second isolating bar 62, one piece the 3rd isolating bar 63, the 4th isolating bar 64; Four conductors, four isolating bars all are close to obturator and are distributed along the obturator outer circumference; The upper surface 611 of first isolating bar 61 and lower surface 612 all are arc; First isolating bar is right after between first conductor and second conductor and with first conductor and second conductor; Second isolating bar is right after between second conductor and the 3rd conductor and with second conductor and the 3rd conductor; The 3rd isolating bar is right after between the 3rd conductor and the 4th conductor and with the 3rd conductor and the 4th conductor; The 4th isolating bar is right after between the 4th conductor and first conductor and with the 4th conductor and first conductor; On arbitrary cross section, the upper surface of arbitrary isolating bar and lower surface all equate with the curvature of lower surface to the center curvature of obturator and the upper surface of this obturator; Restrictive coating envelopes four isolating bars, four conductors; The vertical straight-line extension of arbitrary isolating bar and be parallel with the central axis of obturator; The vertical straight-line extension of arbitrary conductor and be parallel with the central axis of obturator.
Above-mentioned described quad it is characterized in that also being coated with protective layer outside the cable core that four isolating bars and four conductors form, and protective layer is positioned within the restrictive coating.
Above-mentioned described quad is characterized in that described protective layer is vertically to coat or spiral is coated on the cable core, and when vertically coating, the lap width of protective layer is 2mm～4mm; When spiral coated, the overlapping width of the overlap joint of protective layer was 0.15 times a protective layer width.
Above-mentioned described quad is characterized in that described protective layer is mica tape or PVC band or PP band or waterstop.
Embodiment 2
Ask for an interview Fig. 7, and in conjunction with Fig. 1 to Fig. 6, a kind of quad includes first conductor 12, second conductor 22, the 3rd conductor 32, the 4th conductor 42, restrictive coating 5; It is characterized in that also comprising one is positioned at central authorities and is columniform obturator 1, one piece first isolating bar 61, one piece second isolating bar 62, one piece the 3rd isolating bar 63, the 4th isolating bar 64; Four conductors, four isolating bars all are close to obturator and are distributed along the obturator outer circumference; First isolating bar is right after between first conductor and second conductor and with first conductor and second conductor; Second isolating bar is right after between second conductor and the 3rd conductor and with second conductor and the 3rd conductor; The 3rd isolating bar is right after between the 3rd conductor and the 4th conductor and with the 3rd conductor and the 4th conductor; The 4th isolating bar is right after between the 4th conductor and first conductor and with the 4th conductor and first conductor; Four isolating bars and restrictive coating are formed in one; Four isolating bars protrude to the obturator direction from the inwall of restrictive coating; On arbitrary cross section, all isolating bars, all conductors equate with the curvature on the surface that the outer epiphase of obturator pastes; Restrictive coating envelopes four isolating bars, four conductors.
Above-mentioned described quad is characterized in that the vertical straight-line extension of described arbitrary isolating bar and is parallel with the central axis of obturator; The vertical straight-line extension of arbitrary conductor and be parallel with the central axis of obturator.
Above-mentioned described quad is characterized in that the vertical curve of described arbitrary isolating bar extends and is parallel with the central axis of obturator, and vertical direction of a curve of four isolating bars is consistent; The vertical curve of arbitrary conductor extends and is parallel with the central axis of obturator, and vertical direction of a curve of four conductors is consistent; And vertical direction of a curve of isolating bar is consistent with vertical direction of a curve of conductor.
Above-mentioned described any quad, the material that it is characterized in that described obturator are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or poly-low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE) or expanded material.
Above-mentioned described any quad, the material that it is characterized in that described first isolating bar are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or poly-low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any quad, the material that it is characterized in that described second isolating bar are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or poly-low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any quad, the material that it is characterized in that described the 3rd isolating bar are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or poly-low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any quad, the material that it is characterized in that described the 4th isolating bar are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or poly-low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any quad, the material that it is characterized in that described restrictive coating are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or poly-low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any quad, the complex that it is characterized in that serving as reasons described first conductor stranded moulding of many one metal wires synnema forms.
Above-mentioned described any quad, the composite conductor that it is characterized in that serving as reasons described second conductor stranded moulding of many one metal wires synnema forms.
Above-mentioned described any quad, the complex that it is characterized in that serving as reasons described the 3rd conductor the stranded moulding of many one metal wires synnema forms.
Above-mentioned described any quad, the composite conductor that it is characterized in that serving as reasons described the 4th conductor the stranded moulding of many one metal wires synnema forms.
Above-mentioned described any quad it is characterized in that described wire is copper wire or aluminium wire or copper-clad aluminium wire or copper-clad magnesium silk or copper-clad magnadure silk, and diameter wiry is 0.01mm～0.60mm.
Above-mentioned described any quad is characterized in that described synnema is stranded for the one-way spiral mode.
Above-mentioned described any quad is characterized in that shape of cross section, the size of described four conductors is duplicate; Perhaps wherein the shape of cross section of three conductors, size are duplicate, and the shape of cross section of an other conductor, size are different with other three conductors.
Following table is the comparison of the typical outer diameter and the prior art of a kind of scheme of the present invention, and as can be seen from the table, the present invention has advantage aspect the taking of space, and in addition, through accurate Calculation, cost can be saved greatly.
| The quad specification | The outside diameter of cable of the present invention (mm) | The prior art outside diameter of cable (mm) |
| 2×1.5mm 2 | 6.8 | 9.1 |
| 2×2.5mm 2 | 8.2 | 10.6 |
| 2×4mm 2 | 10.5 | 11.7 |
| 2×6mm 2 | 11.2 | 12.9 |
| 2×10mm 2 | 14.4 | 17.0 |
| 2×16mm 2 | 18.3 | 19.3 |
| 2×25mm 2 | 20.3 | 23.0 |
Embodiment 3
A kind of method of making quad is characterized in that it comprises step:
Form the step of four conductors: at first the stranded moulding of many one metal wires synnema is formed first conductor, secondly the stranded moulding of many one metal wires synnema is formed second conductor, once more the stranded moulding of many one metal wires synnema is formed the 3rd conductor, the more stranded moulding of many one metal wires synnema is formed the 4th conductor; Or the stranded moulding of many one metal wires synnema formed a conductor, then this conductor is cut the branch dish and form first to fourth conductor; First to fourth conductor all is coiled on the corresponding dish tool;
Form the step of obturator by plastic extruding machine, be extruded into behind the obturator around being placed on the dish tool;
Form the step of four isolating bars: form four isolating bars by plastic extruding machine, be contained in respectively on the different dish tools, form first to fourth isolating bar; Or by isolating bar of plastic extruding machine formation, then this isolating bar is carried out three times and cut, three that cut are contained in respectively on the different dish tools, have formed first to fourth isolating bar like this;
Restrictive coating forms step: the dish tool that isolating bar, conductor, obturator will be housed is placed on the draining provisions respectively; Traction is placed on the fixed mould centre bore according to obturator, and first isolating bar, second conductor, second isolating bar, the 3rd conductor, the 3rd isolating bar, the 4th conductor, the 4th isolating bar, first conductor, the mode that first isolating bar is clockwise or counterclockwise are passed the fixed mould periphery holes; Core rod medium pore and the periphery holes that above-mentioned isolating bar, conductor, obturator are passed the sheath extruder respectively again by the mode of passing fixed mould again, thus cable core formed; The traction cable core also extrudes protective cover material formation quad thereon.
Embodiment 4
A kind of method of making quad is characterized in that it comprises step:
Form the step of four conductors: at first the stranded moulding of many one metal wires synnema is formed first conductor, secondly the stranded moulding of many one metal wires synnema is formed second conductor, once more the stranded moulding of many one metal wires synnema is formed the 3rd conductor, the more stranded moulding of many one metal wires synnema is formed the 4th conductor; Or the stranded moulding of many one metal wires synnema formed a conductor, then this conductor is cut the branch dish and form first to fourth conductor; First to fourth conductor all is coiled on the corresponding dish tool;
Form the step of obturator by plastic extruding machine, be extruded into behind the obturator around being placed on the dish tool;
Form the step of four isolating bars: form four isolating bars by plastic extruding machine, be contained in respectively on the different dish tools, form first to fourth isolating bar; Or by isolating bar of plastic extruding machine formation, then this isolating bar is carried out three times and cut, three that cut are contained in respectively on the different dish tools, have formed first to fourth isolating bar like this;
Restrictive coating forms step: the dish tool that isolating bar, conductor, obturator will be housed is placed on the draining provisions respectively; Traction is placed on the fixed mould centre bore according to obturator, and first isolating bar, second conductor, second isolating bar, the 3rd conductor, the 3rd isolating bar, the 4th conductor, the 4th isolating bar, first conductor, the mode that first isolating bar is clockwise or counterclockwise are passed the fixed mould periphery holes; The outer rim of the sub-circular that forms at four conductors and four isolating bars is outer vertically wraps up or spiral wraps up a protective layer; Core rod medium pore and the periphery holes that above-mentioned isolating bar, conductor, obturator are passed the sheath extruder respectively again by the mode of passing fixed mould again, thus cable core formed; The traction cable core also extrudes protective cover material formation quad thereon.
A kind of method of making quad is characterized in that it comprises step:
Form the step of four conductors: at first the stranded moulding of many one metal wires synnema is formed first conductor, secondly the stranded moulding of many one metal wires synnema is formed second conductor, once more the stranded moulding of many one metal wires synnema is formed the 3rd conductor, the more stranded moulding of many one metal wires synnema is formed the 4th conductor; Or the stranded moulding of many one metal wires synnema formed a conductor, then this conductor is cut the branch dish and form first to fourth conductor; First to fourth conductor all is coiled on the corresponding dish tool;
Form the step of obturator by plastic extruding machine, be extruded into behind the obturator around being placed on the dish tool;
Form the step of four isolating bars: form four isolating bars by plastic extruding machine, be contained in respectively on the different dish tools, form first to fourth isolating bar; Or by isolating bar of plastic extruding machine formation, then this isolating bar is carried out three times and cut, three that cut are contained in respectively on the different dish tools, have formed first to fourth isolating bar like this;
Restrictive coating forms step: the dish tool that conductor, obturator will be housed is placed on the draining provisions respectively; Traction is placed on the fixed mould centre bore according to obturator, and second conductor, the 3rd conductor, the 4th conductor, the mode that first conductor is clockwise or counterclockwise are passed the fixed mould periphery holes; Draw the core rod medium pore that above-mentioned obturator passes the sheath extruder again, with second conductor, the 3rd conductor, the 4th conductor, traction of first conductor and second conductor bores of passing the sheath extruder respectively, the 3rd conductor bores, the 4th conductor bores and first conductor bores, second conductor bores, the 3rd conductor bores, the 4th conductor bores, first conductor bores is to arrange clockwise or counterclockwise, conductor bores is positioned at the core rod medium pore outside, four conductor bores are disconnected mutually, and four conductor bores do not communicate with the core rod medium pore, a part that forms the wall body of conductor bores is to connect together with the wall body that forms the core rod medium pore, and first gap is arranged between the wall body of the wall body of first conductor bores and second conductor bores, second gap is arranged between the wall body of the wall body of second conductor bores and the 3rd conductor bores, between the wall body of the wall body of the 3rd conductor bores and the 4th conductor bores third space is arranged, the 4th gap is arranged between the wall body of the wall body of the 4th conductor bores and first conductor bores, sheath is extruded on conductor when forming restrictive coating, four gaps, first gap to the have formed first isolating bar to the, four isolating bars respectively, isolating bar is close to obturator, and isolating bar and restrictive coating are one.
The method of above-mentioned described quad is characterized in that conductor bores is consistent with the longitudinal extension direction core rod medium pore and conductor bores parallels with the axis of core rod medium pore; The conductor of the quad of producing in this case,, isolating bar are parallel with obturator all the time.
The method of above-mentioned described quad is characterized in that conductor bores is consistent with the longitudinal extension direction core rod medium pore and the axis of conductor bores and core rod medium pore is uneven and the direction unanimity of four conductor bores; In this case, the isolating bar of the quad of producing, conductor are compared with obturator and are presented the one-way spiral shape, because conductor length is greater than obturator length, so this cable has better environmental adaptability.
In the product of the present invention, the wire bundle line formed conductor and be shaped to unique shape and separated by isolating bar, extrusion molding restrictive coating outside again, so the consumption of restrictive coating significantly reduces among the present invention, and the product external diameter is littler, cost is lower.The inventive method is simple, and operation is few, and has omitted slow-paced insulated wire cores manufacturing process, so speed of production is faster, production cost is lower.
The present invention has following beneficial effect: the consumption of product restrictive coating is few, and external diameter is thinner, and every cost is lower, and production process is simpler, speed is faster, production method is simple.
The present invention is not limited to above-mentioned preferred forms, should be appreciated that design of the present invention can be by other various forms enforcement utilizations, and they drop in protection scope of the present invention equally.
Claims (10)
1. quad includes first conductor (12), second conductor (22), the 3rd conductor (32), the 4th conductor (42), restrictive coating (5); It is characterized in that also comprising one is positioned at central authorities and is columniform obturator (1), first isolating bar (61), second isolating bar (62), the 3rd isolating bar (63), the 4th isolating bar (64); Four conductors, four isolating bars all are close to obturator and are distributed along the obturator outer circumference; First isolating bar is right after between first conductor and second conductor and with first conductor and second conductor; Second isolating bar is right after between second conductor and the 3rd conductor and with second conductor and the 3rd conductor; The 3rd isolating bar is right after between the 3rd conductor and the 4th conductor and with the 3rd conductor and the 4th conductor; The 4th isolating bar is right after between the 4th conductor and first conductor and with the 4th conductor and first conductor; On arbitrary cross section, the upper surface of arbitrary isolating bar and lower surface all equate with the curvature of lower surface to the center curvature of obturator and the upper surface of this obturator; Restrictive coating envelopes four isolating bars, four conductors; The vertical straight-line extension of arbitrary isolating bar and be parallel with the central axis of obturator; The vertical straight-line extension of arbitrary conductor and be parallel with the central axis of obturator.
2. quad according to claim 1 it is characterized in that also being coated with protective layer outside the cable core that four isolating bars and four conductors form, and protective layer is positioned within the restrictive coating.
3. quad according to claim 2 is characterized in that described protective layer is vertically to coat or spiral is coated on the cable core, and when vertically coating, the lap width of protective layer is 2mm～4mm; When spiral coated, the overlapping width of the overlap joint of protective layer was 0.15 times a protective layer width.
4. according to claim 2 or 3 described any quads, it is characterized in that described protective layer is mica tape or PVC band or PP band or waterstop.
5. quad includes first conductor (12), second conductor (22), the 3rd conductor (32), the 4th conductor (42), restrictive coating (5); It is characterized in that also comprising one is positioned at central authorities and is columniform obturator (1), first isolating bar (61), second isolating bar (62), the 3rd isolating bar (63), the 4th isolating bar (64); Four conductors, four isolating bars all are close to obturator and are distributed along the obturator outer circumference; First isolating bar is right after between first conductor and second conductor and with first conductor and second conductor; Second isolating bar is right after between second conductor and the 3rd conductor and with second conductor and the 3rd conductor; The 3rd isolating bar is right after between the 3rd conductor and the 4th conductor and with the 3rd conductor and the 4th conductor; The 4th isolating bar is right after between the 4th conductor and first conductor and with the 4th conductor and first conductor; Four isolating bars and restrictive coating are formed in one; Four isolating bars protrude to the obturator direction from the inwall of restrictive coating; On arbitrary cross section, all isolating bars, all conductors equate with the curvature on the surface that the outer epiphase of obturator pastes; Restrictive coating envelopes four isolating bars, four conductors.
6. method of making quad is characterized in that it comprises step:
Form the step of four conductors: at first the stranded moulding of many one metal wires synnema is formed first conductor, secondly the stranded moulding of many one metal wires synnema is formed second conductor, once more the stranded moulding of many one metal wires synnema is formed the 3rd conductor, the more stranded moulding of many one metal wires synnema is formed the 4th conductor; Or the stranded moulding of many one metal wires synnema formed a conductor, then this conductor is cut the branch dish and form first to fourth conductor; First to fourth conductor all is coiled on the corresponding dish tool;
Form the step of obturator by plastic extruding machine, be extruded into behind the obturator around being placed on the dish tool;
Form the step of four isolating bars: form four isolating bars by plastic extruding machine, be contained in respectively on the different dish tools, form first to fourth isolating bar; Or by isolating bar of plastic extruding machine formation, then this isolating bar is carried out three times and cut, three that cut are contained in respectively on the different dish tools, have formed first to fourth isolating bar like this;
Restrictive coating forms step: the dish tool that isolating bar, conductor, obturator will be housed is placed on the draining provisions respectively; Traction is placed on the fixed mould centre bore according to obturator, and first isolating bar, second conductor, second isolating bar, the 3rd conductor, the 3rd isolating bar, the 4th conductor, the 4th isolating bar, first conductor, the mode that first isolating bar is clockwise or counterclockwise are passed the fixed mould periphery holes; Core rod medium pore and the periphery holes that above-mentioned isolating bar, conductor, obturator are passed the sheath extruder respectively again by the mode of passing fixed mould again, thus cable core formed; The traction cable core also extrudes protective cover material formation quad thereon.
7. method of making quad is characterized in that it comprises step:
Form the step of four conductors: at first the stranded moulding of many one metal wires synnema is formed first conductor, secondly the stranded moulding of many one metal wires synnema is formed second conductor, once more the stranded moulding of many one metal wires synnema is formed the 3rd conductor, the more stranded moulding of many one metal wires synnema is formed the 4th conductor; Or the stranded moulding of many one metal wires synnema formed a conductor, then this conductor is cut the branch dish and form first to fourth conductor; First to fourth conductor all is coiled on the corresponding dish tool;
Form the step of obturator by plastic extruding machine, be extruded into behind the obturator around being placed on the dish tool;
Form the step of four isolating bars: form four isolating bars by plastic extruding machine, be contained in respectively on the different dish tools, form first to fourth isolating bar; Or by isolating bar of plastic extruding machine formation, then this isolating bar is carried out three times and cut, three that cut are contained in respectively on the different dish tools, have formed first to fourth isolating bar like this;
Restrictive coating forms step: the dish tool that isolating bar, conductor, obturator will be housed is placed on the draining provisions respectively; Traction is placed on the fixed mould centre bore according to obturator, and first isolating bar, second conductor, second isolating bar, the 3rd conductor, the 3rd isolating bar, the 4th conductor, the 4th isolating bar, first conductor, the mode that first isolating bar is clockwise or counterclockwise are passed the fixed mould periphery holes; The outer rim of the sub-circular that forms at four conductors and four isolating bars is outer vertically wraps up or spiral wraps up a protective layer; Core rod medium pore and the periphery holes that above-mentioned isolating bar, conductor, obturator are passed the sheath extruder respectively again by the mode of passing fixed mould again, thus cable core formed; The traction cable core also extrudes protective cover material formation quad thereon.
8. method of making quad is characterized in that it comprises step:
Form the step of four conductors: at first the stranded moulding of many one metal wires synnema is formed first conductor, secondly the stranded moulding of many one metal wires synnema is formed second conductor, once more the stranded moulding of many one metal wires synnema is formed the 3rd conductor, the more stranded moulding of many one metal wires synnema is formed the 4th conductor; Or the stranded moulding of many one metal wires synnema formed a conductor, then this conductor is cut the branch dish and form first to fourth conductor; First to fourth conductor all is coiled on the corresponding dish tool;
Form the step of obturator by plastic extruding machine, be extruded into behind the obturator around being placed on the dish tool;
Form the step of four isolating bars: form four isolating bars by plastic extruding machine, be contained in respectively on the different dish tools, form first to fourth isolating bar; Or by isolating bar of plastic extruding machine formation, then this isolating bar is carried out three times and cut, three that cut are contained in respectively on the different dish tools, have formed first to fourth isolating bar like this;
Restrictive coating forms step: the dish tool that conductor, obturator will be housed is placed on the draining provisions respectively; Traction is placed on the fixed mould centre bore according to obturator, and second conductor, the 3rd conductor, the 4th conductor, the mode that first conductor is clockwise or counterclockwise are passed the fixed mould periphery holes; Draw the core rod medium pore that above-mentioned obturator passes the sheath extruder again, with second conductor, the 3rd conductor, the 4th conductor, traction of first conductor and second conductor bores of passing the sheath extruder respectively, the 3rd conductor bores, the 4th conductor bores and first conductor bores, second conductor bores, the 3rd conductor bores, the 4th conductor bores, first conductor bores is to arrange clockwise or counterclockwise, conductor bores is positioned at the core rod medium pore outside, four conductor bores are disconnected mutually, and four conductor bores do not communicate with the core rod medium pore, a part that forms the wall body of conductor bores is to connect together with the wall body that forms the core rod medium pore, and first gap is arranged between the wall body of the wall body of first conductor bores and second conductor bores, second gap is arranged between the wall body of the wall body of second conductor bores and the 3rd conductor bores, between the wall body of the wall body of the 3rd conductor bores and the 4th conductor bores third space is arranged, the 4th gap is arranged between the wall body of the wall body of the 4th conductor bores and first conductor bores, sheath is extruded on conductor when forming restrictive coating, four gaps, first gap to the have formed first isolating bar to the, four isolating bars respectively, isolating bar is close to obturator, and isolating bar and restrictive coating are one.
9. the manufacture method of quad according to claim 8 is characterized in that conductor bores is consistent with the longitudinal extension direction core rod medium pore and conductor bores parallels with the axis of core rod medium pore.
10. the manufacture method of quad according to claim 8, it is characterized in that conductor bores is consistent with the longitudinal extension direction core rod medium pore, and the axis of conductor bores and core rod medium pore be uneven and the direction of four conductor bores consistent.
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| CN103903782A (en) * | 2014-03-01 | 2014-07-02 | 安徽中通电缆科技有限公司 | Double-core cable for pipeline |
| CN103903796A (en) * | 2014-03-01 | 2014-07-02 | 安徽中通电缆科技有限公司 | Three-core cable used for vessel |
| CN104097248A (en) * | 2014-07-11 | 2014-10-15 | 国家电网公司 | Method for manufacturing cable protecting tube and mole core of cable protecting tube |
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| CN105845254A (en) * | 2014-08-27 | 2016-08-10 | 沈群华 | Electric power transmission cable and manufacture method thereof |
| CN108133769A (en) * | 2017-12-18 | 2018-06-08 | 中国科学院深圳先进技术研究院 | A kind of fabric construction cable and its data line of use and its method of making |
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| CN102280172B (en) | 2012-12-12 |
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