CN105655038B - A kind of fireproof cable and its production technology - Google Patents
A kind of fireproof cable and its production technology Download PDFInfo
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- CN105655038B CN105655038B CN201610220676.0A CN201610220676A CN105655038B CN 105655038 B CN105655038 B CN 105655038B CN 201610220676 A CN201610220676 A CN 201610220676A CN 105655038 B CN105655038 B CN 105655038B
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- cable
- fire proofing
- proofing material
- extrusion
- layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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- 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
-
- 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
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The present invention relates to a kind of fireproof cable and its production technology,Belong to cable processing technique field,This includes the cable core of oversheath and its inside,Cable core includes wrapping up the multiple cable units being integrated with winding layer,Cable unit includes being wrapped in the plastic insulating layer outside conductive core successively from inside to outside,Aluminum pipe and screen layer,Mineral fire proofing material is filled between cable unit and between cable unit and winding layer,Conductive core is set in cable unit,The constituent of mineral fire proofing material includes mixing match is carried out according to mass percent 60 70% magnesium hydroxide,3 8% calcium powder,2 5% potter's clay and 25 30% adhesive,Fire resistance period is more long,The fireproof cable sequentially passes through wire drawing and twisted wire,Extrusion insulating barrier,The shaping of aluminum pipe and extrusion,Lapped shielding layer,The extrusion of mineral fire proofing material and the parcel of winding layer,The processes such as the cladding of oversheath are obtained,Process high degree of automation,It is time saving and energy saving,Cost can be reduced,Product quality is higher and keeps stabilization.
Description
Technical field
The invention belongs to cable processing technique field, and in particular to a kind of fireproof cable and its production technology.
Background technology
Cable is that, for electrically connected circuit in building, existing cable has the anti-thermoelectricity with fire protecting performance
Cable, this kind of cable includes multiple wires of outer protective jacket and inside, the outside of wire be additionally provided be able to play insulation,
Protection and the protective layer of shielding action, and fire proofing material or refractory material can be also set between wire, for extending fire
When cable use time, but due in cable fill fire proofing material fire resisting effect it is bad, other protective layers in cable
Can not bear high temperature, cable just occur within the very short time of concrete on fire caused by resistance increase can not normal behaviour in service,
Non-serviceable situation is even blown, especially in the skyscraper using elevator, needs to use instrument to maintain the doctor of patient vitals
The place that institute place and some relations country and the people's livelihood are normally run, irremediable loss is meaned if having a power failure, because
This for ensure instrument, personnel and other important objects it is intact withdraw and protect, it is necessary to research and develop one kind can be after fire generation
Use the fireproof cable of long period.
The content of the invention
Instant invention overcomes the shortcoming and defect that existing cable is present, there is provided a kind of fireproof cable and its production technology,
Mineral fireprotection layer fire resistance period in the fireproof cable is long, can provide security context for the conductive unit inside cable, is hair
The normal power-up of long period is provided and ensured during calamity of lighting a fire, and the auto-processes degree being related to is high, is saved a large amount of
It is artificial, production efficiency is significantly improved, and the quality of the fireproof cable finished product of production is preferable and quality is relatively stable.
Concrete technical scheme of the invention is：
A kind of fireproof cable, its cable core for including oversheath and its inside, cable core includes that it is one to be wrapped up with winding layer
Multiple cable units of body, are filled with mineral fire proofing material, electricity between cable unit and between cable unit and winding layer
Conductive core is set in cable unit, and key point is that the constituent of described mineral fire proofing material includes entering according to mass percent
The adhesive of the magnesium hydroxide of the 60-70% of row mixing match, the calcium powder of 3-8%, the potter's clay of 2-5% and 25-30%.
Described cable unit includes being wrapped in plastic insulating layer outside conductive core, aluminum pipe and shielding successively from inside to outside
Layer, described winding layer is that mica tape is Wrapping formed, and oversheath is that threaded copper pipe sheath is pressed in outer surface.
The constituent of described mineral fire proofing material includes matched according to mass percent 65% hydroxide
Magnesium, 5% calcium powder, 3% potter's clay and 27% adhesive.
The constituent of described mineral fire proofing material includes matched according to mass percent 70% hydroxide
Magnesium, 3% calcium powder, 2% potter's clay and 25% adhesive.
The production technology of the fireproof cable of structure as described above, key point is that described production technology is comprised the following steps：
A, wire drawing and twisted wire
Metal embryo material is carried out into wire drawing with mould, the satisfactory conductive filament of diameter is formed, then by many conductions
Silk carries out process, forms conductive core；
B, extrusion insulating barrier
One layer of plastic insulating layer is coated outside conductive core by extrusion molding mode, wire is obtained；
C, aluminum pipe shaping and extrusion
Aluminium bar needed for preparing, by aluminium bar and wire feeding aluminum pipe formation system, being finally obtained has leading for aluminum pipe parcel
Line；
D, lapped shielding layer
The lapped shielding layer outside aluminum pipe, is finally obtained cable unit；
The parcel of e, the extrusion of mineral fire proofing material and winding layer
Cable unit no less than two is combined and sends into fire proofing material extruder, it is between cable unit and electric
Mineral fire proofing material is stained with outside cable unit, and cable unit combination is wound by mica tape and is structure as a whole；
The cladding of f, oversheath
First, then, embossed by protective metal shell in the outer wrap copper pipe sheath of mica tape using copper sheath forming machine
Machine is embossed in the outer surface of copper pipe sheath, finally obtains fireproof cable finished product.
In described step c, aluminum pipe formation system include wire organization of supply, aluminium bar organization of supply and with both output ends
The aluminum pipe forming device of connection, aluminum pipe forming device output end is provided with finished product crimping device, described aluminum pipe forming device bag
Including upper end can overturn the containment vessel of opening and its melt molding mechanism of inside, and the top both sides of melt molding mechanism are respectively provided with
There is heater, melt molding mechanism includes the wire perforation for wire conveying, aluminium bar melting is provided with above wire perforation
Hole, aluminium bar melting hole upper end is provided with the aluminium bar import for aluminium bar conveying.
In described step e, fire proofing material extruder includes the rabbling mechanism, extrusion mechanism and the hauling machine that are connected successively
Structure, is provided with cladding mechanism between described extrusion mechanism and haulage gear, cladding mechanism includes that support base and support base pass through
Roller and drum drive that bearing is rotatably assorted, support base upper end are provided with cantilevered axle, and bearing is installed on cantilever
On axle, cantilevered axle middle part is provided with cable transfer hole, and clad strip volume is hinged with inner wall of rotary drum.
In described step f, copper sheath forming machine includes copper strips coiled body of the output end with welder, described
Copper strips coiled body is the molding die that middle part is provided with copper strip roll curved hole, and copper strip roll curved hole includes the bellmouth orifice of leading portion with after
The straight hole of section, the diameter maximum of bellmouth orifice is located at outer end, and its inner diameter is identical with straight hole diameter, and welder is located at straight hole
Output end top.
In described step f, protective metal shell embossing machine includes driving what protective metal shell moved linearly in supporting table
Haulage gear, the rotating mechanism for driving protective metal shell rotation and the embossing mechanism with push type broach above protective metal shell, it is described
Embossing mechanism also include with female fairlead, fairlead is fixed in supporting table and positioned at protective metal shell by support
Top, push type broach middle part is provided with external screw thread and is engaged with the internal thread in fairlead, and fairlead upper side is provided with mounting hole,
The adjusting lever goed deep into inside fairlead is provided with mounting hole, adjustment rod outer surface is with push type broach outer surface of upper by setting helical teeth
Wheel is engaged.
The beneficial effects of the invention are as follows：Fireproof cable in the present invention is changed by the proportioning to mineral fire proofing material
Enter, reached the purpose of fire resistance period extension, the normal power supply that fire occurs place has obtained prolonged powerful guarantee, is people
Member's escape, illumination search, necessary equipment operation improve technical support, and the production of the fireproof cable realizes highly automated
Change, can realize that equipment automatization is produced from process conductive core to oversheath embossing operation, greatly save cost of labor, from
The mode of dynamicization processing avoids the error that artificial operation is present so that product specification reaches highly consistent, product quality stabilization
In higher level.
Brief description of the drawings
Fig. 1 is the cross-sectional view of fireproof cable of the present invention.
Fig. 2 is the structural representation of aluminum pipe formation system in the present invention.
Fig. 3 is the overlooking the structure diagram of wire organization of supply in Fig. 2.
Fig. 4 is the overlooking the structure diagram of aluminium bar adjusted device and aluminium bar strainer in Fig. 2.
Fig. 5 is the internal structure schematic diagram of aluminium bar haulage gear in Fig. 2.
The structural representation of Tu6Shi Tu2Zhong melt moldings mechanism.
Fig. 7 is the cross-sectional view of A-A in Fig. 6.
Fig. 8 is the structural representation of fire proofing material extruder in the present invention.
Fig. 9 is the structural representation of cladding mechanism and haulage gear in fire proofing material extruder.
Figure 10 is the structural representation of copper sheath forming machine in the present invention.
Figure 11 is the top view of Figure 10.
Figure 12 is the structural representation of protective metal shell embossing machine in the present invention.
Figure 13 is the internal structure schematic diagram of embossing mechanism in protective metal shell embossing machine.
Figure 14 is the cross-sectional view of B-B in Figure 12.
In accompanying drawing, 1, oversheath, 101, molding die, 102, bellmouth orifice, 103, straight hole, 104, curling supplemental cartridge, 105,
Fillet, 106, welding gun, 107, slideway, 108, sliding support, 109, copper strips, 2, winding layer, 3, mineral fire proofing material, 301, support
Seat, 302, bearing, 303, roller, 304, cantilevered axle, 305, cable transfer hole, 306, clad strip volume, 307, articulated stand, 308,
Drive gear, 309, motor, 3010, passive gear ring, 3011, material bin, 3012, auger, 3013, stirring motor, 3014,
Stirring decelerator, 3015, material extrusion hole, 3016, cable transfer passage, 3017, material extrusion die head, 3018, ball-type attachment chamber, 3019,
Cable, 3020, mounting groove, 3021, upper transmission belt, 3022, lower drive belts, 3023, driving pulley, 3024, fixed roller frame,
3025th, liftable roller frame, 3026, telescopic shaft, 3027, cable limited roller, 3028, follower rollers, 3029, clamping brace
Platform, 4, conductive core, 5, plastic insulating layer, 6, aluminum pipe, 601, containment vessel, 602, heater, 603, wire, 604, wire wears
Hole, 605, aluminium bar melting hole, 606, aluminium bar, 607, aluminium bar import, 608, coil of wire, 609, be vertically directed roller, 6010, level
Guide roller, 6011, aluminium bar volume, 6012, aluminum pipe limited roller, 6013, tuning roller, 601301, stopper slot, 6014, tensioning
Roller, 601401, gathering sill, 6015, rubber layer, 6016, passive roller, 6017, active roller, the 601701, first motor,
601702nd, the second motor, 6018, finished product curling axle, 6019, vertical guide wheel, 7, screen layer, 801, embossing supporting table, 802, gold
Category sheath, 803, push type broach, 804, fairlead, 805, support, 806, mounting hole, 807, adjusting lever, 808, size scale line, 809,
Guide rail, 8010, sliding seat, 8011, scroll chuck, 8012, rotary shaft, 8013, motor, 8014, decelerator, 8015, oversheath
Limited roller, 8016, oversheath guide roller, 8017, bar hole, 8018, elastic layer, 8019, locking nut, 8020, handwheel.
Specific embodiment
The present invention relates to a kind of fireproof cable and its production technology, fireproof cable includes the cable of oversheath 1 and its inside
Core, cable core includes wrapping up multiple cable units for being integrated with winding layer 2, between cable unit and cable unit and winding
Mineral fire proofing material 3 is filled between layer 2, conductive core 4, the composition of described mineral fire proofing material 3 are set in cable unit
Composition includes being carried out according to mass percent the potter's clay of the magnesium hydroxide of 60-70% of mixing match, the calcium powder of 3-8%, 2-5%
And the adhesive of 25-30%, multiple cable units are wound parcel and are integrated by winding layer 2 together with mineral fire proofing material 3, outside it
Protected by oversheath 1, the fireproof cable in production, by the internal wire-drawing shape of conductive core 4, enter from inside to outside
Row production and processing, eventually forms the fireproof cable of said structure.
Specific embodiment, as shown in figure 1, the cable unit in fireproof cable includes being wrapped in conductive core successively from inside to outside
Plastic insulating layer 5, aluminum pipe 6 and screen layer 7 outside 4, described winding layer 2 are that mica tape is Wrapping formed, and oversheath 1 is appearance
The threaded copper pipe sheath of face pressure, the mineral fire proofing material filled between cable unit and between cable unit and winding layer 2
3, its constituent include according to mass percent matched 65% magnesium hydroxide, 5% calcium powder, 3% potter's clay and
27% adhesive, above-mentioned each composition is standby after being weighed according to mass ratio, such as the production work of the fireproof cable of above-mentioned structure
Skill, described production technology is comprised the following steps：
A, wire drawing and twisted wire
Metal embryo material is carried out into wire drawing with mould, the satisfactory conductive filament of diameter is formed, then by many conductions
Silk carries out process, forms conductive core 4；
B, extrusion insulating barrier 5
One layer of plastic insulating layer 5 is coated outside conductive core 4 by extrusion molding mode, wire is obtained；
C, aluminum pipe 6 are molded and extrude
As shown in Figures 2 to 7, the aluminium bar 606 needed for preparing, sends aluminium bar 606 and wire 603 into aluminum pipe formation system
In, the wire 603 for having aluminum pipe (6) to wrap up finally is obtained；Aluminum pipe formation system include wire organization of supply, aluminium bar organization of supply and
The aluminum pipe forming device being connected with both output ends, aluminum pipe forming device output end is provided with finished product crimping device, described aluminium
Pipe forming apparatus can overturn the containment vessel 601 of opening and its melt molding mechanism of inside, melt molding mechanism including upper end
Top both sides be provided with heater 602, melt molding mechanism includes the wire perforation 604 for the conveying of wire 603, is leading
The top of line perforation 604 is provided with aluminium bar melting hole 605, and the aluminium bar melting upper end of hole 605 is provided with the aluminium bar conveyed for aluminium bar 606 and enters
Mouth 607；
Wire organization of supply includes coil of wire 608 and wire adjusted device, and wire adjusted device is vertically directed including two
Roller 609 and an adjacent horizontally-guided roller 6010, wire 603 is through two gaps being vertically directed roller 609
And the upper end by horizontally-guided roller 6010 extends outwardly, two are vertically directed the horizontal shifting that roller 609 defines wire
Dynamic, horizontally-guided roller 6010 limits wire and moves down, and realizes the guide function to wire 603, and wire 603 is passed through and led
Line perforation 604 is simultaneously fixed with the surface of finished product winding off spindle 6018, and wire 604 entrance points of perforating are expand outwardly tubaeform, it is to avoid
Abrasion and shearing force that the import of straight tube shape is caused to the edge of wire 603, drive the second motor and the second decelerator can
To drive wire 603 to be moved to finished product curling axle 6018 direction, aluminium bar 606 passes through aluminium bar organization of supply to aluminium in this process
Pipe forming apparatus supply aluminium bar 606, and aluminium bar 606 is coated on the surrounding of wire 603 and forms the electricity with aluminum pipe by aluminum pipe forming device
Cable；
Aluminium bar organization of supply include before and after be connected successively aluminium bar volume 6011, aluminium bar adjusted device, aluminium bar strainer and
Aluminium bar draw-gear, aluminium bar draw-gear output end is corresponding with aluminium bar import 607, and aluminium bar import 607 is set to two, relatively
The aluminium bar melting hole 605 answered is two, and two aluminium bar melting holes 605 are located at the both sides top of wire perforation 604, aluminium bar volume respectively
The aluminium bars 606 of volume two are wound with 6011 carries out the supply of aluminium bar 606 to two aluminium bar imports 607 respectively, and such setting can be with
Heating problem not in place in middle part when avoiding using a thicker aluminium bar 606, it is also possible to avoid using a thinner aluminium bar
Aluminium liquid insufficient problem when 606, but also melting cladding can be carried out to wire 603 from both sides respectively, aluminum pipe is molded more
For uniform；Described aluminium bar adjusted device includes horizontally disposed neighbouring aluminum pipe limited roller 6012 and tuning roller
6013, the surface of tuning roller 6013 is provided with two parallel stopper slots 601301, two aluminium bars 606 be each passed through two it is spacing
Groove 601301, aluminum pipe limited roller 6012 is located at the top of tuning roller 6013, can be each defined in two aluminium bars 606 relatively
In the stopper slot 601301 answered；
Aluminium bar strainer includes tightener sheave 6014 of the height less than tuning roller 6013, and the surface of tightener sheave 6014 sets
Two parallel gathering sills 601401 are equipped with, to avoid aligning the time between gathering sill 601401 and tuning roller 6013,
The front end of tightener sheave is provided with three vertical guide wheels 6019, and two gaps of formation are relative with two gathering sills 601401 respectively
Should；Aluminium bar draw-gear is provided with two groups of parallel passive rollers 6016 and active roller of rubber layer 6015 including surface
6017, diameter of the gap less than aluminium bar 606 between active roller 6017 and passive roller 6016, two active rollers 6017 lead to
Cross belt to be attached, one of active roller 6017 provides dynamic by the first motor 601701 and the first decelerator 601702
Two aluminium bars 606 are clamped draw and be delivered to aluminium bar import 607 respectively by power, two groups of active rollers 6017 and passive roller 6016
Place, in distraction procedure, aluminium bar 606 is straightened by after the tensioning of tightener sheave 6014；Stopper slot 1301, gathering sill 1401, master
Gap and aluminium bar import 607 that dynamic roller 6017 and passive roller 6016 are formed constitute the transfer passage of aluminium bar 606, containment vessel
The upset of 601 upper ends is opened, and is heated using high-power microwave after melt molding mechanism is dismantled, and guarantor is then put it into again
In the heater 602 of protective case 601, the upset of the upper end of containment vessel 601 covers heater, and the selection of heater 602 is small work(
The heater of rate, such setting can when producing in enormous quantities save energy, heater 602 only serves insulation effect, melts
Melt shaping mechanism and use stainless steel material, heater 602 causes the temperature of melt molding mechanism to be maintained on the fusing point of aluminium,
Under the fusing point of iron, the aluminium liquid of melting is coated from both sides to wire 603, and aluminium liquid begins to cool down during cladding, finished product volume
Traction wire 603 movement of axle 6018 is taken so as to be pulled out with the wire 603 of aluminum pipe, aluminium liquid in outside distraction procedure by
Gradually cooling finishes the conductive core 4 to form aluminum pipe parcel；
D, lapped shielding layer 7
Lapped shielding layer 7 outside aluminum pipe, are obtained cable unit；
The parcel of e, the extrusion of mineral fire proofing material 3 and winding layer 2
As shown in Figure 8 and Figure 9, will be combined to form cable 3019 and send into fire proofing wood no less than the cable unit of two
In material extruder, mineral fire proofing material 3 is stained between cable unit and outside cable unit, and with mineral fire prevention
The cable unit of material 3 is combined the cable 3019 to be formed and is structure as a whole by mica tape winding；Fire proofing material extruder includes
Rabbling mechanism, extrusion mechanism and the haulage gear being connected successively, are provided with cladding between described extrusion mechanism and haulage gear
Mechanism, cladding mechanism includes that support base 301 and support base 301 pass through roller 303 and the rolling that bearing 302 is rotatably assorted
Cylinder drive mechanism, the upper end of support base 301 is provided with cantilevered axle 304, and bearing 302 is installed in cantilevered axle 304, in cantilevered axle 304
Portion is provided with cable transfer hole 305, and clad strip volume 306 is hinged with the inwall of roller 303；
Mineral fire proofing material 3 from fire prevention mineral rock, including 65% matched according to mass percent hydroxide
Magnesium, 5% calcium powder, 3% potter's clay and 27% adhesive, rabbling mechanism are that top carries pan feeding, and 3011 auger 3012 is twisted
Dragon 3012 is driven by stirring motor 3013 and stirring decelerator 3014, by the various constituents needed for mineral rock of preventing fires
Put into after weighing well in material bin 3011, the output end of auger 3012 is connected with extrusion mechanism input, and extrusion mechanism is interior
Portion is provided with the die head 3017 of intersecting material extrusion hole 3015 and cable transfer passage 3016, and cable transfer passage 3016 is through hole,
Material extrusion hole 3015 is blind hole, and both intersections are provided with ball-type attachment chamber 3018, the input and rabbling mechanism of material extrusion hole 3015
Output end be connected, acted on by the stirring and conveying of auger 3012, fire proofing material is admitted to the material extrusion of material extrusion die head 3017
In hole 3015, at the uniform velocity drawn in the feeding cable transfer of cable 3019 passage 3016 and by haulage gear, fire proofing material is attached in ball-type
And be uniformly adhered at chamber 3018 surrounding of cable 3019, the cable 3019 for being attached with fire proofing material is transported to forward coating machine
In structure；
Cable 3019 is delivered in the cable transfer hole 305 at the middle part of cantilevered axle 304, is fixed with the inwall of roller 303 and is hinged
Support 307, clad strip volume 306 is installed on articulated stand 307, between the axis and the axis of roller 303 of clad strip volume 306
Angle is preferably 3010 degree, and drum drive is connected with the motor 309 of drive gear 308, roller including output end
303 excircles are provided with passive gear ring 3010, and passive gear ring 3010 and drive gear 308 are meshed, were conveyed in cable 3019
Cheng Zhong, motor 309 starts, the concomitant rotation of passive gear ring 3010, and roller 303 drives clad strip volume 306 to rotate, clad strip volume
What is wound on 306 is mica tape, and mica tape is coated the fire proofing material outside cable 3019, the two ends of cable transfer hole 305
Knuckle treatment is done, the output end of cable transfer hole 305 is corresponding with haulage gear；Haulage gear input is provided with tuning
Mechanism, adjusted device includes two vertical cable limited rollers 3027 and a follower rollers for level 3028, two cables
Gap between limited roller 3027 and a follower rollers 3028 forms the traction passage of cable 3019, and cable 3019 is by being somebody's turn to do
Enter haulage gear after traction passage, haulage gear is the clamping brace platform 3029 that middle part is provided with cable clamping mechanism, is clamped
The middle part of supporting table 3029 is the mounting groove 3020 for being provided with cable clamping mechanism, and cable clamping mechanism includes what is be oppositely arranged up and down
Upper transmission belt 3021 and lower drive belts 3022, upper transmission belt 3021 and lower drive belts 3022 pass through corresponding driving pulley
3023 and passive belt wheel be arranged in mounting groove 3020, lower drive belts 3022 are internally provided with one group of fixation roller frame 3024, on
Transmission belt 3021 is internally provided with one group of liftable roller frame 3025, and liftable roller frame 3025 is by with telescopic shaft 3026
Cylinder is installed on the top of mounting groove 3020, and liftable roller frame 3025 declines with telescopic shaft 3026, until the He of upper transmission belt 3021
Lower drive belts 3022 clamp cable, and cable 3019 is moved forward with upper transmission belt 3021 and lower drive belts 3022, haulage gear
Trailing cable 3019 sequentially pass through rabbling mechanism, extrusion mechanism, cladding mechanism carry out corresponding operation, final cable 3019 weeks
Enclose and be uniformly attached with fire proofing material, and also coated fire proofing material by mica tape；In extrusion mechanism and haulage gear
Between cladding mechanism is set, fire proofing material can be wrapped up with cladding band winding, it is to avoid the dropping of fire proofing material, and cladding
Mechanism structure is simple, cost is relatively low, without artificial participation, and after cladding without worrying that what fire proofing material extruding dropped asks
Topic, for the implementation of haulage gear provides possibility, the efficiency of whole cable processing also obtained raising, additionally, being set in extrusion mechanism
The ball-type attachment chamber put can make by cable around uniform attachment fire proofing material, cable has exposed after greatly reducing extrusion
The situation in region, it is to avoid the generation of fire prevention failure conditions, the cable fire-proof performance of production is more stablized；
The cladding of f, oversheath 1
First, then, embossed by protective metal shell in the outer wrap copper pipe sheath of mica tape using copper sheath forming machine
Machine is embossed in the outer surface of copper pipe sheath, finally obtains fireproof cable finished product；
As shown in Figure 10 and Figure 11, copper sheath forming machine includes copper strips coiled body of the output end with welder, institute
The copper strips coiled body stated is the molding die 101 that middle part is provided with copper strip roll curved hole, and copper strip roll curved hole includes the loudspeaker of leading portion
The straight hole 103 of hole 102 and back segment, the diameter maximum of bellmouth orifice 102 is located at outer end, its inner diameter and the diameter phase of straight hole 103
Together, welder is located at the output end top of straight hole 103；Copper strips 109 is delivered in bellmouth orifice 102, and copper strips is moved forward along inwall
Cylindrical shape is gradually curled into, curling supplemental cartridge 104, the curling top of supplemental cartridge 104 and bellmouth orifice 102 are provided with bellmouth orifice 102
Top is fixedly connected, and curling supplemental cartridge 104 is on same straight line with straight hole and external diameter is less than the diameter of straight hole 103, its internal diameter structure
Into the transfer passage of cable, curling supplemental cartridge 104 excircle resists the toughness of copper strips 109, and copper strips edge curling supplemental cartridge 104 is forward
Move and progress into straight hole 103, cable enters in straight hole 103 by the inside of curling supplemental cartridge 104, crimps supplemental cartridge
104 input inner and outer walls are disposed as fillet 105, and the fillet 105 of outer wall facilitates the conveying of copper strips, the fillet 105 of inwall
So that cable enter curling supplemental cartridge 104 when be relatively easy to, and it will not be caused during cable transfer scratch and
Hinder, in the output end of straight hole 103, copper strips 109 is curled into drum, and cable is wrapped in wherein, welder
It is welding gun 106, the output end top of straight hole 103 is provided with vertical slideway 107, sliding support 108 is provided with slideway 107 therewith
Formation is slidably matched, and welding gun 106 is fixed on the outer end of sliding support 108, the adjustment position in slideway 107 of sliding support 108, parcel
The copper sheath for having cable is transported out from straight hole 103, is subjected to using welding gun 106 simultaneously in outside course of conveying,
Ultimately form copper sheath；The present invention is guided using the curling that bellmouth orifice carries out copper strips, and overcomes copper using auxiliary curling barrel
The toughness of band so that the curling of copper strips is more smooth, substantially avoid occur in copper strips course of conveying be obstructed and cannot move ahead
The phenomenon failed with cans, cable may also pass through auxiliary curling barrel middle part, and cable is carried out during copper strips curling
Parcel, saves the related work that cable inserts copper sheath, improves the overall processing efficiency of cable；
As shown in Figure 12 to Figure 14, protective metal shell embossing machine includes the drive protective metal shell being located in embossing supporting table 801
Rotating mechanism and carry push type broach positioned at the top of protective metal shell 802 that the haulage gear of 802 rectilinear movements, driving protective metal shell rotate
803 embossing mechanism, described embossing mechanism also includes that, with female fairlead 804, fairlead 804 passes through support 805
It is fixed in embossing supporting table 801 and positioned at the top of protective metal shell 802, the middle part of push type broach 803 is provided with external screw thread and fairlead 804
In internal thread be engaged, the upper side of fairlead 804 is provided with mounting hole 806, is provided with mounting hole 806 and gos deep into fairlead
Adjusting lever 807 inside 804, the outer surface of adjusting lever 807 is engaged with the outer surface of upper of push type broach 803 by setting helical gear；
Haulage gear and rotating mechanism are respectively and are arranged at two groups of the two ends of protective metal shell 802, and haulage gear includes being fixed on supporting table
The sliding seat 8010 that the guide rail 809 of 801 upper ends is engaged with guide rail 809, the lower end of sliding seat 8010 is provided with chute and guide rail
809 are slidably matched, and rotating mechanism is fixed on sliding seat 8010, and rotating mechanism driving protective metal shell 802 one end carries out rotation fortune
Dynamic, rotating mechanism is provided with the rotary shaft 8012 of scroll chuck 8011 including one end, and rotary shaft 8012 is by the branch with bearing
Seat is fixed on the upper surface of sliding seat 8010, and rotary shaft 8012 is driven by motor 8013 and decelerator 8014, when using, uses
Scroll chuck 8011 clamps the two ends of protective metal shell 802, and the motor 8013 and decelerator 8014 at two ends are linked so that metal
Sheath 802 is rotated, and the sliding seat 8010 at two ends carries out rectilinear movement synchronized in the same direction, protective metal shell 802 while moving along guide rail 809
Dynamic one side carries out the embossing operation of push type broach 803；When needing to emboss larger-diameter protective metal shell 802, adjustment is rotated
Bar 807 carries out the regulation of overhang, and the outer end of adjusting lever 807 is provided with handwheel 8020, rotates handwheel 8020, the He of adjusting lever 807
The upper end of push type broach 803 carries out helical gear engagement rotation, and push type broach 803 is moved up so as to adapt to the protective metal shell 802 of major diameter, push type broach
803 sides are provided with size scale line 808, and size scale line 808 is distributed on push type broach side every 90 degree, more facilitates push type broach
Observation during 803 rotation to size scale line, adjusting lever 807 is provided with external screw thread in the outer surface outside fairlead 802,
Locking nut 8019 is provided with external screw thread, when adjusting to suitable scale, the inside sidespin of locking nut 8019 is tight, Neng Gouqi
To the effect for clamping adjusting lever 807, push type broach 803 can also be locked therewith, and the overhang of push type broach 803 would not change；Pressure
Line mechanism both sides are respectively arranged with one group of guiding mechanism, guiding mechanism include two that are arranged at the upper surface of support base 1 it is vertical
Oversheath limited roller 8015 and a guide roller for level 8016, the upper surface of support base 801 is provided with horizontal bar hole
8017, two lower ends of oversheath limited roller 8015 are bolted and are fixed in bar hole 8017, and protective metal shell 802 is being moved
Through the gap and the upper end of guide roller 8016 two oversheath limited rollers 8015, oversheath limited roller when dynamic
8015 and the outer surface of guide roller 8016 be provided with elastic layer 8018, and according to the protective metal shell 802 of different-diameter, can be with
Adapted to by adjusting two gaps of oversheath limited roller 8015 in bar hole 8017, gone out when protective metal shell is in embossing
During the situation of existing clamping failure, guiding mechanism can avoid protective metal shell offset direction, and personnel nearby can be avoided golden
The injury that category sheath sideslip is caused.
Embodiment 2, as another effect of mineral fire proofing material preferably into component selections, the ore deposit filled in fireproof cable
Thing fire proofing material 3 constituent includes matched according to mass percent 70% magnesium hydroxide, 3% calcium powder, 2%
Potter's clay and 25% adhesive, form mineral fire proofing material, the fireproof cable filled using the material by the stirring of each composition, mixing
Can ensure to be powered normal under fired state, and the duration is not less than 3 hours, has been effectively ensured normal when fire occurs
Electricity consumption.
Mineral fire proofing material fire resistance period in the present invention is more long, possesses good fire protecting performance, is that fire occurs place
Electricity consumption provide the sufficient time, to stamp out a fire there is provided necessary power supply guarantee, especially needing to enter by elevator
After the skyscraper that administrative staff evacuates, also hospital, frontier defense etc. maintain the important department of equipment operation, fire to occur by electric power
Normal power-up ensure that personnel it is orderly, effectively withdraw, it is also possible to ensure the normal operation of equipment and instrument to ensure patient
Life security or frontier defense safety, the production technology in the present invention pass through aluminum pipe formation system, fire proofing material extruder, copper sheath
The use of forming machine and protective metal shell embossing machine, substantially increases the efficiency of production, saves cost of labor, and product matter
Amount can obtain stability contorting in high level, disclosure satisfy that the quick production of a large amount of fireproof cables.
Claims (3)
1. a kind of production technology of fireproof cable, the fireproof cable includes the cable core of oversheath (1) and its inside, cable core
Including wrapping up multiple cable units for being integrated with winding layer (2), between cable unit and cable unit and winding layer (2) it
Between be filled with mineral fire proofing material (3), in cable unit set conductive core (4), it is characterised in that described mineral fire proofing wood
Expect (3) constituent include according to mass percent carry out the magnesium hydroxide of 60-70% of mixing match, the calcium powder of 3-8%,
The potter's clay of 2-5% and the adhesive of 25-30%；The cable unit includes being wrapped in conductive core (4) outside successively from inside to outside
Plastic insulating layer (5), aluminum pipe (6) and screen layer (7), described winding layer (2) is Wrapping formed for mica tape, oversheath (1)
For threaded copper pipe sheath is pressed in outer surface；The production technology of the fireproof cable based on said structure and composition includes following step
Suddenly：
A, wire drawing and twisted wire
Metal stock is carried out into wire drawing with mould, the satisfactory conductive filament of diameter is formed, then entered many conductive filaments
Row process, forms conductive core (4)；
B, extrusion insulating barrier (5)
One layer of plastic insulating layer (5) is coated outside conductive core (4) by extrusion molding mode, wire (603) is obtained；
C, aluminum pipe (6) shaping and extrusion
Aluminium bar (606) needed for preparing, by aluminium bar (606) and wire (603) feeding aluminum pipe formation system, being finally obtained has aluminium
The wire (603) of pipe (6) parcel；
D, lapped shielding layer (7)
In the outside lapped shielding layer (7) of aluminum pipe (6), cable unit is finally obtained；
The parcel of e, the extrusion of mineral fire proofing material (3) and winding layer (2)
To be combined and send into fire proofing material extruder no less than the cable unit of two, between cable unit and cable list
First outside is stained with mineral fire proofing material (3), and cable unit combination is wound by mica tape and is structure as a whole；
The cladding of f, oversheath (1)
First, then, existed by protective metal shell embossing machine in the outer wrap copper pipe sheath of mica tape using copper sheath forming machine
The outer surface of copper pipe sheath is embossed, and finally obtains fireproof cable finished product；
In described step e, fire proofing material extruder includes the rabbling mechanism, extrusion mechanism and the haulage gear that are connected successively, institute
Cladding mechanism is provided between the extrusion mechanism and haulage gear stated, cladding mechanism includes support base (301) and support base
(301) roller (303) and drum drive being rotatably assorted by bearing (302), support base (301) upper end is set
There is cantilevered axle (304), bearing (302) is installed in cantilevered axle (304), cantilevered axle (304) middle part is provided with cable transfer hole
(305) clad strip volume (306), is hinged with roller (303) inwall.
2. the production technology of a kind of fireproof cable according to claim 1, it is characterised in that：Described mineral fire proofing material
(3) constituent include according to mass percent matched 65% magnesium hydroxide, 5% calcium powder, 3% potter's clay and
27% adhesive.
3. the production technology of a kind of fireproof cable according to claim 1, it is characterised in that：Described mineral fire proofing material
(3) constituent include according to mass percent matched 70% magnesium hydroxide, 3% calcium powder, 2% potter's clay and
25% adhesive.
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| CN201610220676.0A CN105655038B (en) | 2016-04-08 | 2016-04-08 | A kind of fireproof cable and its production technology |
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|---|---|---|---|
| CN201610220676.0A CN105655038B (en) | 2016-04-08 | 2016-04-08 | A kind of fireproof cable and its production technology |
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| CN105655038A CN105655038A (en) | 2016-06-08 |
| CN105655038B true CN105655038B (en) | 2017-06-16 |
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| CN106976158A (en) * | 2017-05-19 | 2017-07-25 | 邓文 | For tube drawing and the device of push wire harness |
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| DE102019217625A1 (en) * | 2019-11-15 | 2021-05-20 | Contitech Antriebssysteme Gmbh | Elevator belt with cords made of coated strands |
| CN111497172B (en) * | 2020-05-07 | 2022-03-11 | 安徽华通电缆集团有限公司 | Flexible branch fireproof cable and forming equipment thereof |
| CN112676498B (en) * | 2020-12-04 | 2021-10-19 | 中国科学院力学研究所 | Processing device for multi-node thermocouple transient heat flow sensor |
| CN113192668B (en) * | 2021-04-25 | 2023-02-21 | 华远高科电缆有限公司 | Isolated flexible mineral insulation fireproof cable for nuclear industry |
| CN114724781B (en) * | 2022-05-09 | 2024-05-28 | 苏州市今久线缆有限公司 | Cable manufacturing system, cable manufacturing method and cable |
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