CN110379571A - A kind of continuous cladding core wire anti-scald system of electrical cable aluminium sheath - Google Patents

A kind of continuous cladding core wire anti-scald system of electrical cable aluminium sheath Download PDF

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Publication number
CN110379571A
CN110379571A CN201910742735.4A CN201910742735A CN110379571A CN 110379571 A CN110379571 A CN 110379571A CN 201910742735 A CN201910742735 A CN 201910742735A CN 110379571 A CN110379571 A CN 110379571A
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China
Prior art keywords
core wire
water
collet
cooling
aluminum pipe
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CN201910742735.4A
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Chinese (zh)
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CN110379571B (en
Inventor
闫志勇
易飞
韩景全
裴旭
柳振发
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Dalian Kangfeng Science & Technology Co Ltd
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Dalian Kangfeng Science & Technology Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0036Details
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22Sheathing; Armouring; Screening; Applying other protective layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/227Pretreatment
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/228After-treatment
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/24Sheathing; Armouring; Screening; Applying other protective layers by extrusion
    • H01B13/245Sheathing; Armouring; Screening; Applying other protective layers by extrusion of metal layers

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Extrusion Of Metal (AREA)

Abstract

A kind of continuous cladding core wire anti-scald system of electrical cable aluminium sheath, belongs to equipment manufacturing and cable production art.Cooling system includes the cooling gentle body channel of water circulation channel, and collet is connect by screw thread with cooling system;The assembly of cooling system and collet is inserted into die cavity centre bore, covers in the outside of core wire, core wire is isolated with punch-pin, and aluminum pipe is socketed on the outside of punch-pin;Equipment water jetting cooler is mounted on the outside of aluminum pipe, is located at mould outlet;Water hole is discharged in equipment water jetting cooler at least one.Core wire is isolated with punch-pin with the collet of heat insulating coat using outer surface by the present invention, is cooled down by cooling system to collet, is guaranteed its temperature at 175 DEG C or less;Open channel in cooling system works normally Shi Ketong compressed air and cools down to core wire and collet, can be passed through liquid nitrogen in long-time emergency shutdown and cool down to mold, protects core wire;Equipment water jetting cooler is quickly cooled down by aluminum pipe of the water curtain to extrusion mould-outlet, scald when preventing core wire and aluminum pipe from contacting.

Description

A kind of continuous cladding core wire anti-scald system of electrical cable aluminium sheath
Technical field
The invention belongs to equipment manufacturing and cable production art, in particular to a kind of continuous cladding core wire of electrical cable aluminium sheath is anti- Scald system.
Background technique
Continuous cladding process is used for the production of extra-high-tension cable aluminium sheath, has been developed in recent years a kind of new work Skill, cladding process are that aluminum alloy blank 11 enters die cavity 13 by corresponding channel under the driving of extruding wheel 12, in high temperature height It is extruded into aluminum pipe 15 from the circumferential weld that punch-pin and cavity plate are formed after pressure soldering, cable core 14 is penetrated through the centre bore of die cavity Aluminum pipe 15, aluminum pipe forms corrugated aluminum sheath after embossing.Entire die cavity is in the condition of high temperature (500~550 in this course DEG C), the aluminum pipe of extrusion is also at the condition of high temperature, if not taking safeguard procedures, cable core is because by hyperthermia radiation, Huo Zheyu Punch-pin, aluminum pipe are contacted and are scalded.
United States Patent (USP) US5197319 proposes a kind of side for carrying out precooling treatment to it before core wire enters die cavity inner hole Method, cooling medium mainly use liquid nitrogen, cable of this method for small dimensions such as more than ten millimeters of diameter of cladding of coaxial cables Aluminium sheath is with preferable cost performance, but the extra-high-tension cable aluminium sheath for producing the such specification of 60~180 mm of diameter, Liquid nitrogen consumption is excessive, and production cost increases, and enterprise is difficult to receive.Although the existing continuous cladding process of extra-high-tension cable aluminium sheath In also take some safeguard procedures, but it is short (5~8 minutes) to still have guard time in production line disorderly closedown, leads Send a telegraph core waterstop scald or even the problem of polyethylene insulation is scalded, when have waterstop again wrapped or even cable scraps It happens, greatly reduces the production efficiency of enterprise, increases the production cost of enterprise.
Summary of the invention
To solve the above problems, the present invention devises a kind of continuous cladding cable core anti-scald system.It is above-mentioned to realize Purpose, the invention adopts the following technical scheme: a kind of continuous cladding core wire anti-scald system of electrical cable aluminium sheath, which is characterized in that Including cooling system, collet and equipment water jetting cooler, cable core is protected in such a way that water cooling and air cooling combine;It is cooling System includes the cooling gentle body channel of water circulation channel, and collet is connect by screw thread with cooling system;Cooling system and heat-insulated The assembly of set is inserted into die cavity centre bore, covers in the outside of core wire, core wire is isolated with punch-pin, and aluminum pipe is socketed on the outside of punch-pin;Spray Water-cooling apparatus is mounted on the outside of aluminum pipe, is located at mould outlet;Water hole is discharged in equipment water jetting cooler at least one.
The cooling system is long cylindrical part, by with pipe flange, locating piece water spray stainless steel tube, interlayer set, cooling Set and connecting tube composition, the cooling medium circulation system that stainless steel tube connection is made of interlayer set and coolant jacket, stainless steel tube One end connecting pipings ring flange, connecting tube one end connecting pipings ring flange, other end connection interlayer set, connection is fixed in connecting tube Position block, including the gentle cold passage of Water-cooling circulating, air cooling channel is passed through compressed air when normal work, unexpected logical when shutting down for a long time Enter liquid nitrogen.
The coolant jacket includes water torus, open channel and internal screw thread, and annular water torus is wrapped in internal screw thread Outside, the water inlet pipe of water torus are located at bottom, and return pipe is located at top;At least two groups by stainless steel tube and open channel group The air cooling channel being symmetrically distributed.
The collet is a tubular member, and external screw thread and internal screw thread are fitted close, and outer surface sprays thermal barrier coating, interior There is step in Skin Exit direction.
The interlayer set is made of jacket and inner sleeve, and stainless steel tube is positioned there between, outer jacket surface wrap up one layer every Hot material.
The interlayer revolving body that the equipment water jetting cooler is made of ectosome and inner body, the sealing of osculum end, big opening end and confession Water system connection, ectosome is enclosed construction, and the water hole of at least one annular spread, cooling water are entered by interlayer in inner body, by Water hole is discharged to form water curtain, and the axis in water hole is identical as the angle of revolving body axis with along with, and intersects at same point, and angle is big It is small between 15~25 °.
1=1~2mm of clearance C between the collet and core wire, the clearance C 2=0.5 between collet and punch-pin inner hole ~2mm, collet stretch out distance L=0~20 mm of punch-pin end face;Gap between the apopore and aluminum pipe of equipment water jetting cooler C3=3~5mm, shower and aluminum pipe angle δ=15~25 °.
Each component smart structural design of the present invention, collet using outer surface with heat insulating coat by core wire and punch-pin every From being cooled down by cooling system to collet, guarantee its temperature at 175 DEG C or less;Opening is equipped in cooling system simultaneously Channel works normally Shi Ketong compressed air and cools down to core wire and collet, can be passed through in long-time emergency shutdown Liquid nitrogen cools down mold, protects core wire;Die orifice cooling device is quickly cooled down by aluminum pipe of the water curtain to extrusion mould-outlet, is prevented Scald when core wire and aluminum pipe contact is especially suitable for the extra-high-tension cable aluminium sheath of the production such specification of 60~180 mm of diameter.
Detailed description of the invention
Fig. 1 is that electrical cable aluminium sheath continuously coats schematic diagram.
Fig. 2 is assembly relation schematic diagram of the invention.
Fig. 3 is the distance between main component figure in Fig. 2.
Fig. 4 is schematic diagram of cooling system structure of the present invention.
Fig. 5 is cooling medium circulation system structural schematic diagram of the present invention.
Fig. 6 is cooling medium circulation system partial cutaway view one of the present invention.
Fig. 7 is cooling medium circulation system partial cutaway view two of the present invention.
Fig. 8 is collet structural schematic diagram of the present invention.
Fig. 9 is equipment water jetting cooler structural schematic diagram of the present invention.
In figure: aluminum alloy blank 11, extruding wheel 12, die cavity 13, core wire 14, aluminum pipe 15, punch-pin 16, cooling system 21, every Hot jacket 22, external screw thread 221, outer surface 222, step 223, equipment water jetting cooler 23, ectosome 231, inner body 232, water hole 233, folder Layer 234, ring flange 25, locating piece 26, stainless steel tube 27, interlayer cover 28, housing 281, inner sleeve 282, water inlet pipe 283, return pipe 284, stainless steel tube 285, coolant jacket 29, connecting tube 30, water torus 291, open channel 292, internal screw thread 293, collet with Clearance C 1, collet between core wire and the clearance C 2 between punch-pin inner hole, equipment water jetting cooler apopore and aluminum pipe between Clearance C 3, collet stretch out punch-pin end face distance L, shower and aluminum pipe angle δ.
Specific embodiment
Below in conjunction with attached drawing, the present invention is further described with specific embodiment, but the present invention is not limited to be embodied Example.
Embodiment 1
As shown in Fig. 2, a kind of continuous cladding core wire anti-scald system of electrical cable aluminium sheath, including cooling system 21,22 and of collet Equipment water jetting cooler 23 protects cable core in such a way that water cooling and air cooling combine;Cooling system 21 is followed including cooling water Ring channel and gas passage, collet 22 are connect by screw thread with cooling system 21;The combination of cooling system 21 and collet 22 Body is inserted into die cavity centre bore, covers in the outside of core wire 14, core wire 14 is isolated with punch-pin 16, and aluminum pipe 15 is socketed on the outside of punch-pin 16; Equipment water jetting cooler 23 is mounted on 15 outside of aluminum pipe, is located at mould outlet;Water hole is discharged in equipment water jetting cooler 23 at least one.
As shown in figs. 4-7, the cooling system 21 is long cylindrical part, by spraying water not with pipe flange 25, locating piece 26 Steel pipe 27, interlayer set 28, coolant jacket 29 and the connecting tube 30 of becoming rusty form, and the connection of stainless steel tube 27 is by interlayer set 28 and 29 institute of coolant jacket The cooling medium circulation system of composition, 27 one end connecting pipings ring flange 25 of stainless steel tube, 30 one end connecting pipings method of connecting tube Blue disk 25, other end connection interlayer cover 28, connect locating piece 26, including the gentle cold passage of Water-cooling circulating in connecting tube 30, normally Air cooling channel is passed through compressed air when work, and unexpected long-time is passed through liquid nitrogen when shutting down.
The coolant jacket 29 includes water torus 291, open channel 292 and internal screw thread 293, annular water torus 291 It is wrapped in the outside of internal screw thread 293, the water inlet pipe 283 of water torus 291 is located at bottom, and return pipe 284 is located at top;At least Two groups by stainless steel tube 285 and 292 groups of the open channel air cooling channels being symmetrically distributed.
The collet 22 is a tubular member, and external screw thread 221 and internal screw thread 293 are fitted close, and outer surface 221 sprays Thermal barrier coating, inner surface export direction have step 223.
As shown in figure 8, the interlayer set 28 is made of housing 281 and inner sleeve 282, stainless steel tube 27 is positioned there between, Wrap up one layer of heat-barrier material in 281 outer surface of housing.
As shown in figure 9, the interlayer revolving body that the equipment water jetting cooler 23 is made of ectosome 231 and inner body 232, osculum End sealing, big opening end are connect with water system, and ectosome 231 is enclosed construction, the water of at least one annular spread in inner body 232 Hole 233, cooling water are entered by interlayer 234, form water curtain by the discharge of water hole 233, the axis in water hole and revolving body axis with along with Angle it is identical, and intersect at same point, corner dimension is between 15~25 °.
As shown in figure 3,1=1.5mm of clearance C between collet 22 described in the present embodiment and core wire 14, collet 22 with 2=1mm of clearance C between 16 inner hole of punch-pin, collet 22 stretch out distance L=10mm of 16 end face of punch-pin;Equipment water jetting cooler 23 Apopore and aluminum pipe 15 between 3=4mm of clearance C, shower and 15 angle δ=20 ° of aluminum pipe.
When work, preheated die cavity 13 is installed on extruder and is locked first, opens cooling system 21 The assembly of cooling system 21 and collet 22 is inserted into die cavity centre bore, detection collet 22 and 16 inner hole of punch-pin by recirculated water Gap;Start continuous extruder, rotate extruding wheel 12, feed aluminum alloy blank 11, after the extrusion of aluminum pipe 15, opens water spray Cooling device is pushed into mould outlet position after importing aluminum pipe;After 15 steady extruding of aluminum pipe, cable core 14 is penetrated The inner hole of cooling system 21 enters inside aluminum pipe 15, while opening air cooling system.
Embodiment 2
A kind of Each part and connection relationship of the continuous cladding core wire anti-scald system of electrical cable aluminium sheath described in the present embodiment It is in the same manner as in Example 1, difference are as follows: 1=1mm of clearance C between collet 22 and core wire 14, collet 22 and punch-pin 16 2=0.5mm of clearance C between inner hole, collet 22 stretch out distance L=0mm of 16 end face of punch-pin;The water outlet of equipment water jetting cooler 23 3=3mm of clearance C between hole and aluminum pipe 15, shower and 15 angle δ=15 ° of aluminum pipe.
Embodiment 3
A kind of Each part and connection relationship of the continuous cladding core wire anti-scald system of electrical cable aluminium sheath described in the present embodiment It is in the same manner as in Example 1, difference are as follows: 1=2mm of clearance C between collet 22 and core wire 14, collet 22 and punch-pin 16 2=2mm of clearance C between inner hole, collet 22 stretch out the mm of distance L=20 of 16 end face of punch-pin;The water outlet of equipment water jetting cooler 23 3=5mm of clearance C between hole and aluminum pipe 15, shower and 15 angle δ=25 ° of aluminum pipe.

Claims (7)

1. a kind of continuous cladding core wire anti-scald system of electrical cable aluminium sheath, which is characterized in that including cooling system (21), collet (22) and equipment water jetting cooler (23), cable core is protected in such a way that water cooling and air cooling combine;Cooling system (21) packet The gentle body channel of cooling water circulation channel is included, collet (22) is connect by screw thread with cooling system (21);Cooling system (21) With the assembly of collet (22), be inserted into die cavity centre bore, cover the outside in core wire (14), by core wire (14) and punch-pin (16) every From socket aluminum pipe (15) on the outside of punch-pin (16);Equipment water jetting cooler (23) is mounted on the outside of aluminum pipe (15), is located at mould outlet Place;Water hole is discharged in equipment water jetting cooler (23) at least one.
2. the continuous cladding core wire anti-scald system of a kind of electrical cable aluminium sheath according to claim 1, which is characterized in that described Cooling system (21) is long cylindrical part, by with pipe flange (25), locating piece (26) water spray stainless steel tube (27), interlayer set (28), coolant jacket (29) and connecting tube (30) composition, stainless steel tube (27) are connected by interlayer set (28) and coolant jacket (29) institute structure At cooling medium circulation system, stainless steel tube (27) one end connecting pipings ring flange (25), connecting tube (30) one end connection matches Pipe flange (25), other end connection interlayer set (28) connect locating piece (26) in connecting tube (30), including Water-cooling circulating is logical The gentle cold passage in road, air cooling channel is passed through compressed air when normal work, unexpected to be passed through liquid nitrogen when shutting down for a long time.
3. the continuous cladding core wire anti-scald system of a kind of electrical cable aluminium sheath according to claim 2, which is characterized in that described Coolant jacket (29) includes water torus (291), open channel (292) and internal screw thread (293), annular water torus (291) packet It is rolled in the outside of internal screw thread (293), the water inlet pipe (283) of water torus (291) is located at bottom, and return pipe (284) is located at top; At least two groups air cooling channels being symmetrically distributed by stainless steel tube (285) and open channel (292) group.
4. the continuous cladding core wire anti-scald system of a kind of electrical cable aluminium sheath according to claim 3, which is characterized in that described Collet (22) is a tubular member, and external screw thread (221) and internal screw thread (293) are fitted close, and outer surface (222) spray thermal boundary Coating, inner surface export direction have step (223).
5. the continuous cladding core wire anti-scald system of a kind of electrical cable aluminium sheath according to claim 2, which is characterized in that described Interlayer set (28) is made of housing (281) and inner sleeve (282), and stainless steel tube (27) is positioned there between, housing (281) outer surface Wrap up one layer of heat-barrier material.
6. the continuous cladding core wire anti-scald system of a kind of electrical cable aluminium sheath according to claim 1, which is characterized in that described The interlayer revolving body that equipment water jetting cooler (23) is made of ectosome (231) and inner body (232), osculum end sealing, big opening end with Water system connection, ectosome (231) are enclosed construction, and the water hole (233) of at least one annular spread, cold in inner body (232) But water is entered by interlayer (234), forms water curtain by water hole (233) discharge, the folder of the axis in water hole and revolving body axis with along with Angle is identical, and intersects at same point, and corner dimension is between 15~25 °.
7. the continuous cladding core wire anti-scald system of a kind of electrical cable aluminium sheath according to claim 1, which is characterized in that described 1=1~2mm of clearance C between collet (22) and core wire (14), clearance C 2 between collet (22) and punch-pin (16) inner hole= 0.5~2mm, collet (22) stretch out distance L=0~20 mm of punch-pin (16) end face;The apopore of equipment water jetting cooler (23) With 3=3~5mm of clearance C between aluminum pipe (15), shower and aluminum pipe (15) angle δ=15~25 °.
CN201910742735.4A 2019-08-13 2019-08-13 Cable aluminum sheath continuous cladding core wire anti-scalding system Active CN110379571B (en)

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Application Number Priority Date Filing Date Title
CN201910742735.4A CN110379571B (en) 2019-08-13 2019-08-13 Cable aluminum sheath continuous cladding core wire anti-scalding system

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CN110379571B CN110379571B (en) 2024-02-27

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB631127A (en) * 1947-01-20 1949-10-27 Standard Telephones Cables Ltd Improvements in or relating to electric cables
GB1124537A (en) * 1965-08-31 1968-08-21 Felten & Guilleaume Carlswerk An extrusion press for sheathing cables
US5197319A (en) * 1991-12-05 1993-03-30 Brazeway, Inc. Extrusion apparatus for sheathing a temperature sensitive core material
CN207564928U (en) * 2017-11-24 2018-07-03 芜湖市恒鑫电缆有限责任公司 A kind of accompanying-heat cable high temperature squeezes out on-line cooling system
CN108941238A (en) * 2017-05-18 2018-12-07 艾洛益(杭州)材料科技有限公司 The continuous preparation process of copper clad aluminium composite bus
CN109494015A (en) * 2018-12-28 2019-03-19 李奇元 The flush mounting and cable making apparatus of embedded with metal bar formula cable
CN209045247U (en) * 2019-01-14 2019-06-28 安徽猎塔电缆集团有限公司 A kind of industrial cable multicomponent synchronization extrusion system
CN210123674U (en) * 2019-08-13 2020-03-03 大连康丰科技有限公司 Cable aluminum sheath continuous cladding core wire scald preventing system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB631127A (en) * 1947-01-20 1949-10-27 Standard Telephones Cables Ltd Improvements in or relating to electric cables
GB1124537A (en) * 1965-08-31 1968-08-21 Felten & Guilleaume Carlswerk An extrusion press for sheathing cables
US5197319A (en) * 1991-12-05 1993-03-30 Brazeway, Inc. Extrusion apparatus for sheathing a temperature sensitive core material
CN108941238A (en) * 2017-05-18 2018-12-07 艾洛益(杭州)材料科技有限公司 The continuous preparation process of copper clad aluminium composite bus
CN207564928U (en) * 2017-11-24 2018-07-03 芜湖市恒鑫电缆有限责任公司 A kind of accompanying-heat cable high temperature squeezes out on-line cooling system
CN109494015A (en) * 2018-12-28 2019-03-19 李奇元 The flush mounting and cable making apparatus of embedded with metal bar formula cable
CN209045247U (en) * 2019-01-14 2019-06-28 安徽猎塔电缆集团有限公司 A kind of industrial cable multicomponent synchronization extrusion system
CN210123674U (en) * 2019-08-13 2020-03-03 大连康丰科技有限公司 Cable aluminum sheath continuous cladding core wire scald preventing system

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