CN113178284B - Copper-clad aluminum conductor crosslinked polyethylene insulated power cable - Google Patents
Copper-clad aluminum conductor crosslinked polyethylene insulated power cable Download PDFInfo
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- CN113178284B CN113178284B CN202110472702.XA CN202110472702A CN113178284B CN 113178284 B CN113178284 B CN 113178284B CN 202110472702 A CN202110472702 A CN 202110472702A CN 113178284 B CN113178284 B CN 113178284B
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- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 37
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 37
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 239000004020 conductor Substances 0.000 title claims abstract description 26
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 18
- 238000001125 extrusion Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 229910000989 Alclad Inorganic materials 0.000 claims 2
- 238000009413 insulation Methods 0.000 claims 2
- 150000001879 copper Chemical class 0.000 claims 1
- 238000007765 extrusion coating Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005728 strengthening Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001788 irregular Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/145—Pretreatment or after-treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/28—Applying continuous inductive loading, e.g. Krarup loading
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/28—Applying continuous inductive loading, e.g. Krarup loading
- H01B13/285—Applying continuous inductive loading, e.g. Krarup loading by extrusion
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a copper-clad aluminum conductor crosslinked polyethylene insulated power cable, which comprises an inner sheath layer, wherein the inner side of the inner sheath layer is provided with four main wire cores and a reinforced cable core, the main wire cores comprise an insulating layer and a wire core, the outer side of the wire core is provided with an insulating layer, the four main wire cores are spirally wound on the outer side of the reinforced cable core, the outer side of the inner sheath layer is provided with an armor layer, the outer side of the armor layer is provided with an outer sheath layer, a corrector comprises a correction cavity and a mounting frame, the center of the correction cavity is provided with an operation through groove, the groove wall of the operation through groove is provided with an annular groove, the front side edge of the mounting frame is provided with a sliding circular groove, the mounting frame is mutually clamped with the operation through groove through the sliding circular groove, a buckle is clamped with a clamping groove, so that a first correction roller and a second correction roller keep inclined, and then each corrector is respectively and sequentially arranged at the corresponding position in a discharge box, thereby carry out irregular settlement to the unscrambler for the correction effect improves greatly.
Description
Technical Field
The invention relates to the field of electric wires and cables, in particular to a copper-clad aluminum conductor crosslinked polyethylene insulated power cable.
Background
The frequency conversion cable is mainly used for connecting a frequency conversion power supply and a frequency conversion motor, is used for transmitting electric energy in a power transmission and distribution line with rated voltage of 1KV or below, and is particularly suitable for industries such as papermaking, metallurgy, metal processing, mines, railways, food processing and the like.
When the traditional variable frequency cable is extruded, the thickness of the extruded layer on the outer side of the conductor core is uneven due to the gravity, the bending of the cable and the like.
Disclosure of Invention
The invention aims to solve the problems and the defects, and provides the copper-clad aluminum conductor crosslinked polyethylene insulated power cable, which improves the overall working efficiency.
The purpose of the invention can be realized by the following technical scheme: a copper clad aluminum conductor crosslinked polyethylene insulated power cable comprises an inner sheath layer, wherein the inner side of the inner sheath layer is provided with four main wire cores and a reinforced cable core, each main wire core comprises an insulating layer and a wire core, the outer side of each wire core is provided with the insulating layer, the four main wire cores are spirally wound on the outer side of the reinforced cable core, the outer side of the inner sheath layer is provided with an armor layer, and the outer side of the armor layer is provided with an outer sheath layer;
the production method of the copper-clad aluminum conductor crosslinked polyethylene insulated power cable comprises the following steps:
the method comprises the following steps: the copper-clad aluminum metal rod is pulled to obtain copper-clad aluminum metal wires, a plurality of copper-clad aluminum metal wires are twisted along the clockwise direction to obtain compound wires, then the compound wires are twisted reversely to obtain lead cores, then the lead cores are placed in an extruding device for extruding, the lead cores sequentially pass through an inlet wire cavity and a dressing cavity, are corrected by all correctors in a discharge box and then pass out from the output end of the discharge box, simultaneously adding crosslinked polyethylene material into the feeding cylinder, starting the machine body, conveying the crosslinked polyethylene material in the feeding cylinder into the dressing cavity through the extrusion cavity, uniformly extruding the crosslinked polyethylene material on the surface of the lead core by the dressing cavity, reducing the temperature of the discharge end of the dressing cavity through the cooling pipe, so that the temperature of the molten cross-linked polyethylene material is reduced and the molten cross-linked polyethylene material is wrapped on the surface of the wire core to form an insulating layer;
step two: setting the correctors, rotating a knob, loosening a clamping spring, enabling a C-shaped clamping piece and a limiting groove to stir a buckle, enabling the buckle to be separated from a clamping groove on a mounting frame, stirring the knob, then rotating the mounting frame for a certain angle on a scale according to a pointer, clamping the buckle with the clamping groove, enabling a first correcting roller and a second correcting roller to keep inclined, and then sequentially installing the correctors at corresponding positions in a discharging box;
step three: the wire cores wrapped with the insulating layers penetrate through the correctors one by one, the first correcting roller and the second correcting roller of each corrector clamp and extrude the insulating layers to enable the thickness of the insulating layers to be uniform, the insulating layers are tightly adhered to the wire cores through clamping and extrusion, and the surfaces of the insulating layers are smoothed through a discharge port of a discharge box to obtain main wire cores with smooth surfaces;
step four: and winding the main wire core obtained in the third step around the reinforced cable core in a spiral shape to obtain a cable blank, then extruding and wrapping the cable blank outside to form an inner sheath layer, then carrying out armoring on the outer side of the inner sheath layer to obtain an armor layer, then carrying out extrusion wrapping on the outer side of the armor layer to form an outer sheath layer, and respectively carrying out correction through each corrector when the inner sheath layer and the outer sheath layer are extruded and wrapped, thereby finally obtaining the copper-clad aluminum conductor crosslinked polyethylene insulated power cable.
As a further scheme of the invention, the extruding device comprises a discharging box, a feeding cylinder, an extruding cavity, a machine body, a wire inlet cavity and a dressing cavity, wherein the extruding cavity is arranged on the upper side of the machine body, the feeding cylinder is arranged on the upper side of the extruding cavity, the dressing cavity is arranged on one side of the extruding cavity, the wire inlet cavity is arranged at the input end of the dressing cavity, and the discharging box is arranged at the output end of the dressing cavity.
As a further scheme of the invention, a cooling pipe is embedded at the output end of the dressing cavity, and a plurality of correctors are arranged at equal intervals on the inner side of the discharge box from one side close to the dressing cavity to the direction far away from the dressing cavity.
As a further scheme of the invention, the corrector comprises a correction cavity and a mounting frame, wherein the center of the correction cavity is provided with an operation through groove, the wall of the operation through groove is provided with an annular groove, the front side edge of the mounting frame is provided with a sliding circular groove, the mounting frame is mutually clamped with the operation through groove through the sliding circular groove, the mounting frame is in sliding clamping connection with the correction cavity, the peripheral edge of the mounting frame is provided with a plurality of clamping grooves in an annular array at equal intervals, one corner of the correction cavity is provided with a buckle which is in sliding clamping connection with the clamping grooves, the center of the mounting frame is provided with a mounting groove, the upper side and the lower side of the mounting groove are respectively provided with a first slide bar, the upper side and the lower side of the mounting groove are respectively provided with a second slide bar, one end of the first slide bar is fixedly connected with the wall of one side of the mounting groove, the other end of the first slide bar is fixedly connected with the side of one end of the second support column, the other end of the first slide bar penetrates through the first support column and is in sliding connection with the first support column, one end of the second sliding rod is fixedly connected with the other side groove wall of the mounting groove, the other end of the second sliding rod is fixedly connected with one end side face of the first supporting column, the other end of the second sliding rod penetrates through the second supporting column and is in sliding connection with the second supporting column, a first correcting roller is rotatably connected between the pair of first supporting columns, and a second correcting roller is rotatably connected between the pair of second supporting columns.
As a further scheme of the invention, a pair of second through grooves are respectively formed in the upper side and the lower side of the mounting groove, a pair of first through grooves are respectively formed in the upper side and the lower side of the mounting frame, the first through grooves and the second through grooves are in one-to-one correspondence, the first through grooves and the second through grooves are mutually communicated through sliding grooves, the sliding grooves are embedded in the mounting frame, movable blocks are connected in the sliding grooves in a sliding mode, the movable blocks located in the sliding grooves on the left side are fixedly connected with the first supporting columns, and the movable blocks located in the sliding grooves on the right side are fixedly connected with the second supporting columns.
According to a further scheme of the invention, a support rod is fixedly connected to the front side of the movable block, the support rod penetrates through the first through groove and is in sliding connection with the first through groove, a knob is in threaded connection with the end portion of the support rod, a C-shaped clamping piece is sleeved on the outer side of the middle of the support rod, the upper side of the C-shaped clamping piece is abutted to the lower side of the knob, a plurality of limiting grooves are formed in the edge of the outer side of the first through groove of the mounting frame, the C-shaped clamping piece is clamped with the mounting frame through the limiting grooves, a clamping spring is arranged between the support rod and the C-shaped clamping piece, a pointer is fixedly sleeved on the outer side of the lower portion of the support rod, the upper side of the pointer is fixedly connected with the lower end of the clamping spring, a pair of scales is mounted on the upper side and the lower side of the mounting frame, and the scales are in one-to-one correspondence with the first through groove respectively.
The invention has the beneficial effects that:
the correction device is set, the knob is rotated, the clamping spring is loosened, the C-shaped clamping piece and the limiting groove are used for stirring the buckle, the buckle is separated from the clamping groove on the mounting frame, the knob is stirred, the mounting frame is rotated by a certain angle on the scale according to the pointer, then the buckle is clamped with the clamping groove, the first correction roller and the second correction roller are kept inclined, and the correction devices are sequentially arranged at corresponding positions in the discharging box respectively, so that the correction device is irregularly set, the correction effect is greatly improved, and the condition of regular correction errors is avoided;
the parcel has the wire core of insulating layer to pass each unscrambler one by one, and the first correction roller and the second correction roller of unscrambler carry out the centre gripping extrusion to the insulating layer for the thickness of insulating layer keeps evenly, and make insulating layer and the inseparable adhesion of wire core through the centre gripping extrusion, and the discharge port of passing through the play workbin is smeared the surface of insulating layer again, obtains the smooth main line core in surface, through correcting the extrusion in succession, makes the thickness of insulating layer even gradually.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of a cable construction according to the present invention;
FIG. 2 is a schematic view of the structure of the wrapping apparatus of the present invention;
FIG. 3 is a schematic view of a partial structure of the wrapping apparatus of the present invention;
FIG. 4 is a schematic view of the orthosis of the present invention;
FIG. 5 is a schematic view of the orthotic device of the present invention with the orthotic cavity removed;
FIG. 6 is a schematic view showing a connection structure of the knob, the C-shaped buckle, the latch spring and the pointer according to the present invention.
In the figure: 1. an outer jacket layer; 2. an armor layer; 3. an inner jacket layer; 4. an insulating layer; 5. a wire core; 6. reinforcing the cable core; 7. a discharging box; 8. a charging barrel; 9. extruding the cavity; 10. a body; 11. a wire inlet cavity; 12. a dressing cavity; 13. a cooling tube; 14. a corrector; 15. a correction cavity; 16. a mounting frame; 17. mounting grooves; 18. a first slide bar; 19. a second slide bar; 20. a first support column; 21. a second support column; 22. a first correcting roller; 23. a second correcting roller; 24. a movable block; 25. a support bar; 26. a knob; 27. c-shaped clamping pieces; 28. a latch spring; 29. a pointer; 30. a sliding groove; 31. a first through groove; 32. a second through groove; 33. a scale; 34. a clamping groove; 35. buckling; 36. operating the through groove; 37. a sliding circular groove; 38. a limiting groove.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-6:
a copper clad aluminum conductor crosslinked polyethylene insulated power cable comprises an inner sheath layer 3, wherein the inner side of the inner sheath layer 3 is provided with four main wire cores and a reinforced cable core 6, each main wire core comprises an insulating layer 4 and a wire core 5, the outer side of each wire core 5 is provided with the insulating layer 4, the four main wire cores are spirally wound on the outer side of the reinforced cable core 6, the outer side of the inner sheath layer 3 is provided with an armor layer 2, and the outer side of the armor layer 2 is provided with an outer sheath layer 1;
the production method of the copper-clad aluminum conductor crosslinked polyethylene insulated power cable comprises the following steps:
the method comprises the following steps: the copper-clad aluminum metal rod is pulled to obtain copper-clad aluminum metal wires, a plurality of copper-clad aluminum metal wires are twisted along the clockwise direction to obtain strands, then the strands are twisted reversely to obtain a conductor core 5, then the conductor core 5 is placed in an extruding device for extruding, the conductor core 5 sequentially passes through an inlet wire cavity 11 and a dressing cavity 12, is corrected by all correctors 14 in a discharging box 7 and penetrates out of an output end of the discharging box 7, meanwhile, a crosslinked polyethylene material is added into a feeding cylinder 8, a machine body 10 is started, the crosslinked polyethylene material in the feeding cylinder 8 is conveyed into the dressing cavity 12 through an extruding cavity 9, the crosslinked polyethylene material is uniformly extruded and coated on the surface of the conductor core 5 by the dressing cavity 12, the temperature of the discharging end of the dressing cavity 12 is reduced through a cooling pipe 13, the temperature of the molten crosslinked polyethylene material is reduced and is coated on the surface of the conductor core 5, forming an insulating layer 4;
step two: setting the correctors 14, rotating the knob 26, loosening the clamping spring 28, enabling the C-shaped clamping piece 27 and the limiting groove 38 to shift the buckle 35, enabling the buckle 35 to be separated from the clamping groove 34 on the mounting frame 16, shifting the knob 26, rotating the mounting frame 16 by a certain angle on the scale 33 according to the pointer 29, then clamping the buckle 35 with the clamping groove 34, enabling the first correcting roller 22 and the second correcting roller 23 to keep inclined, and then respectively and sequentially installing the correctors 14 at corresponding positions in the discharge box 7;
step three: the wire cores 5 wrapped with the insulating layers 4 penetrate through the correctors 14 one by one, the first correcting roller 22 and the second correcting roller 23 of each corrector 14 clamp and extrude the insulating layers 4, so that the thickness of the insulating layers 4 is kept uniform, the insulating layers 4 are tightly adhered to the wire cores 5 through clamping and extrusion, and the surfaces of the insulating layers 4 are leveled through the discharge ports of the discharge boxes 7, so that main wire cores with smooth surfaces are obtained;
step four: and winding the main wire core obtained in the four steps in a spiral shape around the reinforced cable core 6 to obtain a cable blank, then extruding and wrapping the cable blank to form an inner sheath layer 3, then carrying out armoring on the outer side of the inner sheath layer 3 to obtain an armor layer 2, then extruding and wrapping the outer side of the armor layer 2 to form an outer sheath layer 1, and respectively carrying out correction through each corrector 14 when the inner sheath layer 3 and the outer sheath layer 1 are extruded and wrapped to finally obtain the copper-clad aluminum conductor crosslinked polyethylene insulated power cable.
Crowded package device is including ejection of compact case 7, charging barrel 8, extrusion cavity 9, organism 10, inlet wire cavity 11 and dressing cavity 12, and extrusion cavity 9 is installed to the upside of organism 10, and extrusion cavity 9's upside is installed and is added charging barrel 8, and dressing cavity 12 is installed to one side of extruding cavity 9, and inlet wire cavity 11 is installed to dressing cavity 12's input, and ejection of compact case 7 is installed to dressing cavity 12's output.
The output end of the dressing cavity 12 is embedded with a cooling pipe 13, and the inner side of the discharging box 7 is provided with a plurality of correctors 14 at equal intervals from one side close to the dressing cavity 12 to the direction far away.
The corrector 14 comprises a correction cavity 15 and a mounting frame 16, wherein an operation through groove 36 is formed in the center of the correction cavity 15, an annular groove is formed in the groove wall of the operation through groove 36, a sliding circular groove 37 is formed in the front side edge of the mounting frame 16, the mounting frame 16 is clamped with the operation through groove 36 through the sliding circular groove 37, the mounting frame 16 is in sliding clamping connection with the correction cavity 15, a plurality of clamping grooves 34 are formed in the peripheral edge of the mounting frame 16 in an annular array at equal intervals, a buckle 35 is installed at one corner of the correction cavity 15, the buckle 35 is in sliding clamping connection with the clamping grooves 34, a mounting groove 17 is formed in the center of the mounting frame 16, first slide bars 18 are respectively installed on the upper side and the lower side of the mounting groove 17, second slide bars 19 are respectively installed on the upper side and the lower side of the mounting groove 17, one end of each first slide bar 18 is fixedly connected with one side surface of the mounting groove 17, and the other end of each second support column 21 are fixedly connected with one side surface of each other side surface of each first slide bar 18, the other end of the first slide bar 18 is slidably sleeved with a first support column 20, the other end of the second slide bar 19 is fixedly connected with one end side face of the first support column 20, the other end of the second slide bar 19 is slidably sleeved with a second support column 21, one end of the first slide bar 18, far away from the first support column 20, is fixedly connected with one end side face of the second support column 21, a pair of first support columns 20 are rotatably connected with a first correcting roller 22, and a pair of second support columns 21 are rotatably connected with a second correcting roller 23.
A pair of second through groove 32 has all been seted up to the upper and lower both sides cell wall of mounting groove 17, a pair of first logical groove 31 has all been seted up to the upper and lower both sides of mounting bracket 16, first logical groove 31 and the second through groove 32 one-to-one, and first logical groove 31 and the second lead to groove 32 and communicate each other through sliding tray 30, sliding tray 30 is buried underground inside mounting bracket 16, sliding tray 30 sliding connection has movable block 24, be located the movable block 24 and the first support column 20 fixed connection of left side sliding tray 30, be located the movable block 24 and the 21 fixed connection of second support column of right side sliding tray 30.
Front side fixedly connected with bracing piece 25 of movable block 24, bracing piece 25 run through first logical groove 31 and with first logical groove 31 sliding connection, the tip threaded connection of bracing piece 25 has knob 26, the middle part outside cover of bracing piece 25 is equipped with C shape fastener 27, the upside of C shape fastener 27 and the mutual butt of downside of knob 26, a plurality of spacing grooves 38 have been seted up at the outside edge of first logical groove 31 to mounting bracket 16, C shape fastener 27 passes through spacing groove 38 and the mutual joint of mounting bracket 16, be provided with kayser spring 28 between bracing piece 25 and the C shape fastener 27, pointer 29 has been cup jointed to the lower part outside of bracing piece 25 is fixed, the upside of pointer 29 and kayser spring 28's lower extreme fixed connection, a pair of scale 33 is all installed to the upper and lower both sides of mounting bracket 16, and scale 33 respectively with first logical groove 31 one-to-one.
When the invention is used, a copper-clad aluminum metal rod is pulled to obtain copper-clad aluminum metal wires, a plurality of copper-clad aluminum metal wires are twisted clockwise to obtain folded wires, then the plurality of folded wires are twisted reversely to obtain a lead core 5, then the lead core 5 is placed in an extruding device for extruding, the lead core 5 sequentially passes through a lead-in cavity 11 and a dressing cavity 12, is corrected by all correctors 14 in a discharge box 7 and then passes out from an output end of the discharge box 7, meanwhile, a crosslinked polyethylene material is added into a feeding cylinder 8, a machine body 10 is started, the crosslinked polyethylene material in the feeding cylinder 8 is conveyed into the dressing cavity 12 through an extruding cavity 9, the crosslinked polyethylene material is uniformly extruded on the surface of the lead core 5 by the dressing cavity 12, the temperature of the discharge end of the dressing cavity 12 is reduced through a cooling pipe 13, the temperature of the molten crosslinked polyethylene material is reduced and is wrapped on the surface of the lead core 5, forming an insulating layer 4;
meanwhile, the correctors 14 are set, the knob 26 is rotated, the clamping spring 28 is loosened, the C-shaped clamping piece 27 and the limiting groove 38 are used for shifting the buckle 35, the buckle 35 is separated from the clamping groove 34 on the mounting frame 16, the knob 26 is shifted, the mounting frame 16 is rotated by a certain angle on the scale 33 according to the pointer 29, then the buckle 35 is clamped with the clamping groove 34, the first correcting roller 22 and the second correcting roller 23 are kept inclined, and then the correctors 14 are sequentially mounted at corresponding positions in the discharging box 7;
then the wire cores 5 wrapped with the insulating layers 4 penetrate through the correctors 14 one by one, the first correcting roller 22 and the second correcting roller 23 of the correctors 14 clamp and extrude the insulating layers 4 to keep the thickness of the insulating layers 4 uniform, the insulating layers 4 are tightly adhered to the wire cores 5 through clamping and extrusion, and the surfaces of the insulating layers 4 are leveled through a discharge port of the discharge box 7 to obtain main wire cores with smooth surfaces;
and finally, winding the main wire core obtained in the four steps in a spiral shape around the reinforced cable core 6 to obtain a cable blank, then extruding and wrapping the cable blank outside to form an inner sheath layer 3, then carrying out armoring on the outer side of the inner sheath layer 3 to obtain an armor layer 2, then carrying out extrusion wrapping on the outer side of the armor layer 2 to form an outer sheath layer 1, respectively carrying out correction through each corrector 14 when the inner sheath layer 3 and the outer sheath layer 1 are extruded and wrapped, and finally obtaining the copper-clad aluminum conductor crosslinked polyethylene insulated power cable, so that the problems of uneven effect, unstable yield and the like are solved.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. The utility model provides a copper alclad conductor crosslinked polyethylene insulation power cable, includes inner sheath layer (3), the inboard of inner sheath layer (3) is provided with four main line cores and one and strengthens cable core (6), the main line core includes insulating layer (4) and wire core (5), the outside of wire core (5) is provided with insulating layer (4), four the main line core is the heliciform winding in the outside of strengthening cable core (6), the outside of inner sheath layer (3) is provided with armor (2), the outside of armor (2) is provided with oversheath layer (1), its characterized in that, this copper alclad conductor crosslinked polyethylene insulation power cable's production method includes following step:
the method comprises the following steps: stranding a plurality of copper-clad aluminum metal wires to obtain strands, reversely stranding the strands to obtain a lead core (5), putting the lead core (5) in an extrusion device for extrusion coating, sequentially passing the lead core (5) through an inlet wire cavity (11) and a dressing cavity (12), correcting by all correctors (14) in a discharge box (7), penetrating out of an output end of the discharge box (7), adding a crosslinked polyethylene material into a feeding cylinder (8), starting a machine body (10), conveying the crosslinked polyethylene material in the feeding cylinder (8) into the dressing cavity (12) through an extrusion cavity (9), uniformly extruding the crosslinked polyethylene material on the surface of the lead core (5) by the dressing cavity (12), and reducing the temperature of the molten crosslinked polyethylene material through a cooling pipe (13) to form an insulating layer (4);
step two: the correction device (14) is set, the knob (26) is rotated, the clamping spring (28) is loosened, the C-shaped clamping piece (27) is separated from the limiting groove (38), the knob (26) is shifted again, the distance between the first correction roller (22) and the second correction roller (23) is determined according to the scale of the pointer (29) on the scale (33), then the knob (26) is rotated again, the C-shaped clamping piece (27) is locked, the first correction roller (22) and the second correction roller (23) are fixed, then the buckle (35) is shifted, the buckle (35) is separated from the clamping groove (34), then the mounting frame (16) is rotated by a certain angle, the mounting frame (16) is fixed through the buckle (35) and the clamping groove (34) in a clamping mode, and then the correction devices (14) are sequentially mounted at corresponding positions in the discharge box (7);
step three: the wire core (5) wrapped with the insulating layer (4) penetrates through each straightener (14) one by one, the insulating layer (4) is clamped and extruded by a first correcting roller (22) and a second correcting roller (23) of each straightener (14), so that the thickness of the insulating layer (4) is kept uniform, the insulating layer (4) is tightly adhered to the wire core (5) through clamping and extrusion, and the surface of the insulating layer (4) is leveled through a discharge port of a discharge box (7), so that a main wire core with a smooth surface is obtained;
step four: the four main wire cores are spirally wound around the reinforcing cable core (6) to obtain a cable blank, then the cable blank is extruded outside to form an inner sheath layer (3), the outer side of the inner sheath layer (3) is armored to obtain an armor layer (2), the outer side of the armor layer (2) is extruded to form an outer sheath layer (1), the inner sheath layer (3) and the outer sheath layer (1) are respectively corrected through the correctors (14) when being extruded, and finally the copper-clad aluminum conductor crosslinked polyethylene insulated power cable is obtained.
2. The copper-clad aluminum conductor crosslinked polyethylene insulated power cable according to claim 1, wherein the extrusion device comprises a discharge box (7), a charging barrel (8), an extrusion cavity (9), a machine body (10), an incoming line cavity (11) and a dressing cavity (12), the extrusion cavity (9) is installed on the upper side of the machine body (10), the charging barrel (8) is installed on the upper side of the extrusion cavity (9), the dressing cavity (12) is installed on one side of the extrusion cavity (9), the incoming line cavity (11) is installed at the input end of the dressing cavity (12), and the discharge box (7) is installed at the output end of the dressing cavity (12).
3. The copper-clad aluminum conductor crosslinked polyethylene insulated power cable according to claim 2, characterized in that a cooling pipe (13) is embedded at the output end of the dressing cavity (12), and a plurality of correctors (14) are installed at the inner side of the discharging box (7) at equal intervals.
4. The copper-clad aluminum conductor crosslinked polyethylene insulated power cable according to claim 1, wherein the straightener (14) comprises a straightening cavity (15) and a mounting frame (16), the straightening cavity (15) is provided with a running through groove (36), a sliding circular groove (37) is provided at a front side edge of the mounting frame (16), the mounting frame (16) is mutually clamped with the running through groove (36) through the sliding circular groove (37), and a mounting groove (17) is provided at the center of the mounting frame (16).
5. The copper-clad aluminum conductor crosslinked polyethylene insulated power cable according to claim 4, wherein a pair of second through grooves (32) are formed in the upper and lower side groove walls of the mounting groove (17), a pair of first through grooves (31) are formed in the upper and lower side of the mounting frame (16), the first through grooves (31) and the second through grooves (32) are in one-to-one correspondence, the first through grooves (31) and the second through grooves (32) are communicated with each other through sliding grooves (30), the sliding grooves (30) are embedded in the mounting frame (16), and the sliding grooves (30) are slidably connected with movable blocks (24).
6. The copper-clad aluminum conductor crosslinked polyethylene insulated power cable according to claim 5, characterized in that a support rod (25) is fixedly connected to the front side of the movable block (24), a knob (26) is connected to the end of the support rod (25) through a thread, and a C-shaped clamp (27) is sleeved on the outer side of the middle of the support rod (25).
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