A preparation device and process for waterproof multifunctional electric wire

Abstract

The present invention discloses a preparation device and process for waterproof multifunctional electric wires, and relates to the field of cable manufacturing equipment, which includes a pay-off module, a preheating buffer module, a straightening and pressing module, a heating and sizing module, a drying module, a vulcanizing module, an air-drying and cooling module, and a wire-receiving module, wherein all the above modules are independently arranged, the straightening and pressing module includes a straightening table and a pressing die, the heating and sizing module includes a multi-guide wheel reciprocating isosceles trapezoidal high-temperature oil tank and a vacuum sizing die sleeve, the drying module includes a vertical reciprocating silicone oil tank and a medium-temperature drying pipeline, the vulcanizing module includes a horizontal vulcanizing furnace and a temperature control box, and the air-drying and cooling module includes an air wiper, a take-up machine, and a wire storage rack. The present invention has the advantages of good cable waterproofing effect and long service life.

Description

Technical Field

[0001] The invention relates to the field of cable manufacturing equipment, and in particular to a preparation device and a process for a waterproof multifunctional electric wire. Background Art

[0002] As the application of silicone rubber and its glass fiber braided wire products in industry, commerce, agriculture, military, aerospace and other fields becomes more and more popular and the industry technology matures, it continues to penetrate into all aspects of our lives. Commonly used applications such as lighting fixtures, household appliances, electric heating products, electromagnetic energy and signal transmission of instruments and meters under high temperatures and cold weather all show their multifunctional role. In addition to the above-mentioned multifunctional applications, super waterproof multifunctional silicone resin multi-layer insulation and shielding wires are also used in offshore oil field drilling and mining, unmanned vehicles, small and medium-sized drone information transmission and large drone material delivery. They play an irreplaceable role. The main process technology of glass fiber braided wire products is currently reflected in the following three aspects:

[0003] 1. Glass fiber braided wire is mainly made by extruding the front conductor + gas phase mixed silicone rubber material to complete the wire insulation or sheath. It is then braided by a specific 24-spindle or 36-spindle high-speed braiding machine, and then coated with silicone oil vertically and reciprocatingly. Color paste is added to the silicone oil tank for required immersion deep dyeing. Secondly, it is cured by a sintering furnace and high temperature to complete the product molding.

[0004] 2. The glass fiber braided coating layer is mainly composed of two raw materials, SC-8-268 (Agent A) and SC-8-2046 (Agent B), in the ratio of A:B=10:2. The curing temperature is controlled at 160-180°C and does not contain heavy metals and aromatic hydrocarbon solvents. The solvent usage ratio is 1:1, and the volume resistivity is ≧1.6*1015Ω.CM after full vulcanization. In addition, the braided surface coating material can also be composed of silicone oil + varnish. Two-component liquid silicone rubber is a solvent-free silicone resin that is non-toxic to the human body. The curing process does not produce any excess products and is an environmentally friendly polymer material. At the same time, a very flexible and firm film can be formed on the surface of the glass fiber during the curing process, which can maintain the original insulation and mechanical properties in repeated bending tests;

[0005] 3. Preparation and curing process of glass fiber working fluid: To prevent bubbles and uneven surface of glass fiber coating, SC-8-268 and SC-8-2046B are diluted to the required solid water content with xylene or toluene, generally adjusted to 15-20%. After being completely dissolved, they are mixed in the proportion of 1 part by weight of SC-8-268 / 8-2046B and 2 parts by weight of CA268 / CA-2046. In the actual curing process, different heat treatment conditions are used according to the different substrate materials to be coated. Most of the curing conditions are: 140℃~160℃ (15 minutes). The oiling method before curing is direct oiling, and the ratio of liquid silicone rubber to toluene is 1:2.5, and the ratio of liquid silicone rubber to curing agent is 100:3.

[0006] The shortcomings of the finished wires made by the technology of coating the surface of glass fiber silicone rubber wires with silicone oil are as follows: first, the wires made by the process equipment are not flexible enough, and the wire diameters are prone to uneven sizes and poor appearance, which are not suitable for use in extremely cold environments. If the coating liquid ratio is uneven, bubbles and unevenness will appear on the surface of the wires; second, the surface of the wires made by this equipment process and materials is too weak in water resistance and corrosion resistance to various marine liquids, and has poor resistance to animal and vegetable oils and other solvents during onshore mines or deep-sea oil extraction; third, the glass fiber silicone rubber wires made by this equipment process and its materials have low resistance to high temperatures and fire hazards, and cannot guarantee sufficient escape time for people. Summary of the invention

[0007] In order to overcome the shortcomings of the background technology, the present invention provides a preparation device and process for a waterproof multifunctional electric wire which has a simple structure and is easy to install.

[0008] The technical solution adopted by the present invention is as follows: a preparation device for waterproof multifunctional electric wires, which includes a wire-laying module, a preheating buffer module, a straightening and pressing module, a heating and sizing module, a drying module, a vulcanization module, an air-drying and cooling module, and a wire-receiving module. All of the above modules are independently arranged. The straightening and pressing module includes a straightening table and a pressing die. The heating and sizing module includes a multi-guide wheel reciprocating isosceles trapezoidal high-temperature oil tank and a vacuum sizing die sleeve. The drying module includes a vertical reciprocating silicone resin oil tank and a medium-temperature drying pipeline. The vulcanization module includes a horizontal vulcanization furnace and a temperature control box. The air-drying and cooling module includes an air wiper, a take-up machine, and a wire storage rack.

[0009] The horizontal vulcanizing furnace comprises:

[0010] First rack;

[0011] A plurality of first guide wheels, which are respectively mounted on the front and rear ends of the first frame;

[0012] A closed heating cavity, which is fixedly mounted on the first frame and has a plurality of linearly distributed heating resistance wires disposed therein;

[0013] The first frame is also provided with a temperature control box connected to a heating resistance wire.

[0014] The vacuum sizing die sleeve is provided with a first bracket for installation and a cyclone vacuum pump connected with the first bracket through an air pipe.

[0015] The pay-off module adopts a double-axis power pay-off frame.

[0016] The wire taking-up module adopts a spark machine and a wire taking-up machine.

[0017] The preheating buffer module includes a conductor preheating machine and a tension buffer frame

[0018] The present invention also provides another technical solution, a process for preparing a waterproof multifunctional electric wire, using the above-mentioned preparation device for the waterproof multifunctional electric wire, the steps of which include:

[0019] Step A, the stranded silver-plated conductor is paid out through a double-axis power pay-off stand, the temperature of the conductor preheater is set, the wire-passing copper wheel of the conductor preheater is adjusted in size and temperature preheating according to the diameter of the stranded conductor, the upper and lower tension wheels of the tension buffer stand and the left and right wire-passing guide wheels are adjusted to pay out, and the upper and lower tension wheels and tension springs are flexibly adjusted according to the diameter of the stranded wire to ensure that the wire-passing height of the tension buffer stand and the five conductors of the straightening table are in a horizontal straight line;

[0020] Step B: The vacuum sizing die sleeve compresses the stranded silver-plated conductor into a shape closer to a circle, and the die sleeve and the die tube are vacuum-extracted by a cyclone vacuum pump. During the operation, compressed air enters the injection channel through the inlet, forming a hypersonic airflow of nearly 3 times the speed of sound in the injection channel. The powerful suction capacity of the hypersonic airflow is used to suck the gas in the vacuum cavity through the vacuum port to obtain a normal vacuum;

[0021] Step C, the stranded silver-plated conductor passes through a stainless steel ceramic guide wheel and enters a horizontal multi-guide wheel reciprocating isosceles trapezoidal high-temperature oil tank, and undergoes six guide wheel cycles to reciprocate once;

[0022] Step D, the stranded silver-plated conductor passes through a stainless steel ceramic guide wheel and enters a vertical reciprocating silicone oil tank and a medium-temperature drying pipeline;

[0023] Step E, the stranded silver-plated conductor is fully vulcanized in a horizontal reciprocating vulcanization furnace;

[0024] Step F, the twisted silver-plated conductor is wound on the wire storage rack for air cooling and drying, and enters the take-up machine through the nylon meter pressure wheel and the wind wiper. The silicone rubber wire is wound around the take-up machine for multiple turns and then naturally cooled by air. Then, it is tested online by the spark machine. Before passing through the spark machine, it is necessary to confirm that the high-voltage beads of the spark machine are intact and good, and the discharge ground wire of the spark machine is fully grounded. Finally, it enters the take-up machine for winding.

[0025] In step C, the temperature of the silicone oil tank temperature control box is set to 180° C. to 195° C.

[0026] In the step C, the thickness of the silicone resin on the surface of the twisted silver-plated conductor is 0.05-0.1 mm.

[0027] In the step E, the line speed through the horizontal reciprocating vulcanizing furnace is 12-15 m / min, the estimated vulcanizing time is 30 seconds, and the vulcanizing temperature is set at 265° C.-275° C.

[0028] In the step D, the moderate drying time of the silicone resin is 1 minute, the pipeline temperature control range is 180° C. to 195° C., and the moderate drying temperature is 205° C. to 215° C.

[0029] The beneficial effects of the present invention are as follows: the technical solution solves the problem of full fusion of silicone resin insulation and central conductor of silicone rubber wire products, and achieves waterproof and anti-corrosion functions; solves the problems of vertical baking and rapid curing and balanced insulation wire diameter after the silicone resin of silicone rubber wire products immerses the central conductor; solves the problems of super flexibility and super high temperature resistance of silicone resin wires and resistance to secondary disasters of wire fire; improves the working stability of silicone rubber wire products and extends their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall connection of a device for preparing a waterproof multifunctional electric wire according to an embodiment of the present invention.

[0031] Figure 2 It is a structural schematic diagram of a double-axis power pay-off stand.

[0032] Figure 3 It is a structural schematic diagram of the tension buffer frame.

[0033] Figure 4 This is a schematic diagram of the structure of the conductor preheating machine.

[0034] Figure 5 This is a structural diagram of the straightening table.

[0035] Figure 6 It is a schematic diagram of the structure of the compression mold.

[0036] Figure 7 It is a structural schematic diagram of a multi-guide wheel reciprocating inverted isosceles trapezoidal high-temperature oil tank.

[0037] Figure 8 This is a schematic diagram of the structure of the vacuum sizing die sleeve.

[0038] Fig. 9 It is a structural schematic diagram of a vertical reciprocating silicone oil tank and a medium-temperature drying pipeline.

[0039] Fig.10 It is a structural schematic diagram of a horizontal vulcanization furnace.

[0040] Fig.11 This is the circuit diagram of a horizontal vulcanization furnace.

[0041] Fig.12 This is the circuit diagram inside the medium-temperature drying pipeline. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are further described below in conjunction with the accompanying drawings:

[0043] As shown in the figure, a preparation device for waterproof multifunctional wires includes a wire-laying module, a preheating buffer module, a straightening and pressing module, a heating and sizing module, a drying module, a vulcanizing module, an air-drying and cooling module, and a wire-receiving module. All the above modules are independently arranged. The straightening and pressing module includes a straightening table 4 and a pressing die 5. The heating and sizing module includes a multi-guide wheel reciprocating isosceles trapezoidal high-temperature oil tank 6 and a vacuum sizing die sleeve 7. The drying module includes a vertical reciprocating silicone resin oil tank 8 and a medium-temperature drying pipeline 9. The vulcanizing module includes a horizontal vulcanizing furnace 10 and a temperature control box. The air-drying and cooling module includes an air wiper, a take-up machine, and a wire storage rack. The technical solution solves the problem of full fusion of silicone insulation and central conductor of silicone rubber wire products, and achieves waterproof and anti-corrosion functions; solves the vertical baking and rapid curing of silicone rubber wire products after the silicone resin immerses the central conductor and the insulation wire diameter balance problem; solves the problem of super flexibility and super high temperature resistance of silicone resin wires and resistance to secondary disasters of wire fire; improves the working stability of silicone rubber wire products and extends their service life.

[0044] The multi-guide wheel reciprocating isosceles trapezoidal high-temperature oil tank is a stranded silver-plated conductor that, after being evacuated by a cyclone vacuum pump, enters the isosceles trapezoidal high-temperature oil tank through a sizing die sleeve to complete the first round of immersion in silicone resin, forming a preliminary insulating protective film on the conductor surface; the stranded silver-plated conductor and the protective film are unified as the wire-retracting and paying-off device passes through the outlet guide wheel, turns from horizontal to vertical, passes through the horizontal guide wheel and the vertical wire-passing pipe, enters the vertical guide wheel, and then goes down through the silicone resin oil tank stainless steel guide wheel and is immersed in the second layer of silicone resin. After three reciprocating immersions in silicone resin and three heating resistance wire bakings, it enters the horizontal 2.5M vulcanization furnace device.

[0045] The main functions of the multi-guide reciprocating isosceles trapezoidal high-temperature oil tank are: to immerse the silver-plated stranded conductor silicone resin from the surface in the horizontal direction, which plays the role of the first layer of ultra-thin waterproof insulation; to use a cyclone vacuum pump to evacuate the air inside the stranded conductor before immersing the silicone resin in the horizontal direction, and then to use a sizing die sleeve to make the diameter of the stranded conductor smoother and rounder, thereby enhancing the conductor's anti-oxidation ability;

[0046] The vertical reciprocating silicone oil tank is the main device for the stranded silver-plated conductor to be immersed in silicone resin for the second time from the horizontal direction to the vertical direction, and it is also a dual-purpose device for the first time to complete the preliminary insulation surface drying through the heating and drying device;

[0047] The horizontal vulcanizing furnace 10 comprises:

[0048] A first rack 101;

[0049] A plurality of first guide wheels 102, which are respectively mounted at the front and rear ends of the first frame 101;

[0050] A closed heating cavity 103, which is fixedly mounted on the first frame 101 and has a plurality of linearly distributed heating resistance wires 104 disposed therein;

[0051] The first frame 101 is also provided with a temperature control box connected to a heating resistance wire.

[0052] The horizontal vulcanization furnace device is used to transition the silicone resin of the inner and outer layers of the twisted silver-plated conductor from secondary insulation to a semi-dried state to a fully vulcanized state. After high-temperature vulcanization in the vulcanization furnace with three first guide wheels with a total length of 7.5 meters, it can ensure that the silicone resin surface is evenly vulcanized, so that the silicone resin secondary insulation can achieve the purpose of super waterproof effect.

[0053] The vacuum sizing die sleeve 7 is provided with a first bracket 71 for its installation and a cyclone vacuum pump 72 connected to the first bracket 71 through an air pipe. After the stranded silver-plated conductor passes through the cyclone vacuum pump and the sizing die sleeve from the horizontal direction to complete the vacuuming process and the stranded wire diameter shaping and pressing process, the internal space of the stranded loose conductor is fully compressed by the preparation device, and the first layer of silicone resin is immersed in the surface to complete the surface treatment of the conductor, which saves silicone resin materials and reduces the amount of waterproof silicone resin materials. After the stranded conductor sizing and pressing process is completed, the conductor is passed through a multi-guide wheel reciprocating isosceles trapezoidal high-temperature oil tank device. During the reciprocating process of the silicone resin cyclic thermal movement, the surface adhesion and fusion of the two different materials, the conductor and the silicone resin, are accelerated, so that the diameter of the stranded conductor is more uniform.

[0054] After the silicone resin and the stranded silver-plated conductor surface insulation are combined in the horizontal direction, due to the limitations of line speed and time, the surface of the silicone resin insulation layer has not been fully dried and fully dipped and coated evenly. It is necessary to use the three guide wheels in front of the vertical reciprocating silicone resin oil tank and the silicone resin pipeline, silicone resin oil pump, silicone resin throttle valve, temperature control box, silicone resin front half U-shaped solid silicone resin oil tank and other auxiliary devices to complete the secondary strengthening of silicone resin insulation, and divide it into two parts through the middle silicone resin dividing groove to effectively combine the silicone resin coating process and the medium temperature drying process; then through the rear three guide wheels and medium drying heating resistance wire, drying device temperature control box, silicone resin rear half U-shaped empty slot heating and medium drying. Because it is in the vertical direction, it can greatly reduce the inevitability of silicone resin dripping down before drying, and can also enhance the double-layer insulation adhesion of the silicone resin insulator.

[0055] After completing the second silicone resin insulation process in the vertical direction, it enters the horizontal vulcanization furnace temperature control device through the horizontal wire guide wheel, and undergoes three reciprocating vulcanizations in a total of 7.5 meters of the vulcanization furnace body to achieve the purpose of complete vulcanization of the inner and outer surface materials of the silicone resin insulation layer, thereby enhancing the tensile strength and elongation of the silicone resin insulation layer and its ultra-long aging life.

[0056] Vertical reciprocating spiral motion principle:

[0057] The stranded silver-plated conductor passes through the guide wheel working surface in the silicone semi-enclosed U-shaped high-temperature track groove, forming a liquid static oil film lubricated spiral transmission. Due to the small friction coefficient of the static pressure spiral transmission, the transmission efficiency can reach 99%, and there is no wear and creeping phenomenon, no reverse idle stroke, and the speed is controllable. It has the consistency of the internal rotation direction of the transmission. Because of the balance of the tension of the pay-off shaft and the take-up shaft, the transmission pressure on the stranded silver-plated conductor is very stable and the temperature is also constant, forming a reciprocating cycle motion and a spiral reciprocating up and down rolling coating process. During the silicone resin process in the vertical direction, a silicone resin oil pipe is set in the constant temperature pipeline. Each oil pipe has 3 to 6 oil injection chambers with uniform intervals of Ø0.8mm to Ø1.0mm at the center diameter. The oil chambers on the same side of the stranded conductor are interconnected. Through a throttle valve control, the silicone resin oil pump injects the filtered high-pressure silicone resin into the oil chamber. The silicone resin passes through the gap between the friction surfaces and then flows back into the semi-enclosed U-shaped silicone resin oil tank through the oil chamber pipeline.

[0058] When the stranded silver-plated conductor is not subjected to any load, the gap and oil pressure on both sides of the oil hole are the same. When the stranded silver-plated conductor is subjected to a left axial force, the stranded conductor moves slightly to the left. When the stranded silver-plated conductor is subjected to a radial force, the stranded silver-plated conductor moves slightly downward. When the stranded silver-plated conductor is subjected to a bending moment, the stranded conductor deflects slightly. Due to the action of the throttle valve, the state of the silicone resin molecules in each oil chamber does not change after a slight movement. The stranded silver-plated conductor moves in a balanced manner at the center of the reciprocating guide wheel, maintaining a uniform oil film thickness on the stranded conductor.

[0059] Silicone resin waterproofing principle: In this embodiment, food-grade silicone resin material is used in the horizontal trapezoidal semi-enclosed oil tank, which is equivalent to a high-quality food-grade silicone coating carrier and has excellent water-repellent properties. Even under fully enclosed spraying liquid irrigation and high temperature of 200°C, water seepage will not occur, and it will not swell or fall off due to immersion under high water pressure. The organic groups in the silicone resin play a key role in the water-repellent process, and the inorganic part of the silicone resin anchors itself in the filler and pigment, thus forming a capillary structure and a porous structure, which prevents moisture from invading the internal twisted conductor and can only flow along the surface of the silicone resin film to achieve a super waterproof effect.

[0060] The pay-off module adopts a double-axis powered pay-off frame 1.

[0061] The wire taking-up module adopts a spark machine and a wire taking-up machine.

[0062] The preheating buffer module includes a conductor preheating machine 2 and a tension buffer frame 3

[0063] A process for preparing a waterproof multifunctional electric wire, using the above-mentioned preparation device for the waterproof multifunctional electric wire, comprises the following steps:

[0064] Step A, the stranded silver-plated conductor is paid out through the double-axis power pay-off stand 1, the temperature of the conductor preheater is set, the wire-passing copper wheel of the conductor preheater 2 is adjusted in size and temperature preheating according to the diameter of the stranded conductor, the upper and lower tension wheels and the left and right wire-passing guide wheels of the tension buffer stand 3 are adjusted for paying out, and the upper and lower tension wheels and the tension spring are flexibly adjusted according to the diameter of the stranded wire to ensure that the wire-passing height of the tension buffer stand 3 and the 45 conductors of the straightening table are in a horizontal straight line;

[0065] Step B, vacuum sizing die sleeve 7 presses the twisted silver-plated conductor into a shape closer to a circle, vacuum extraction is performed on the die sleeve and the die tube by a cyclone vacuum pump, and during operation, compressed air enters the injection channel through the inlet, forming a hypersonic airflow nearly 3 times the speed of sound in the injection channel, and the gas in the vacuum chamber is sucked through the vacuum port by utilizing the powerful suction capacity of the hypersonic airflow to obtain a normal vacuum; dynamic pay-off can achieve tension adjustment and pay-off tension balance, and preheating of the twisted conductor can make the conductor and the post-process material heating type silicone resin metal molecules and non-metallic molecules have better adhesion and bonding, and at the same time pave the way for the verticality of the next process through double insulation of silicone resin; coupled with vacuum treatment, the air in the internal gaps of the twisted conductor can be completely discharged, thereby enhancing the conductor's resistance to original oxidation and the bonding capacity between silicone resin molecules.

[0066] Step C, the stranded silver-plated conductor enters the horizontal multi-guide wheel reciprocating isosceles trapezoidal high-temperature oil tank 6 through a stainless steel ceramic guide wheel, and undergoes six guide wheel cycles to reciprocate once;

[0067] Step D, the stranded silver-plated conductor passes through a stainless steel ceramic guide wheel and enters a vertical reciprocating silicone oil tank 8 and a medium-temperature drying pipeline 9;

[0068] Step E, the stranded silver-plated conductor is fully vulcanized in a horizontal reciprocating vulcanization furnace;

[0069] Step F, the twisted silver-plated conductor is wound on the wire storage rack for air cooling and drying, and enters the take-up machine through the nylon meter pressure wheel and the wind wiper. The silicone rubber wire is wound around the take-up machine for multiple turns and then enters the air for natural cooling. Then, it is tested online with a spark machine. Before passing through the spark machine, it is necessary to confirm that the high-voltage beads of the spark machine are intact and in good condition, and the discharge ground wire of the spark machine is fully grounded. Finally, it enters the take-up machine for winding.

[0070] In step C, the temperature of the silicone oil tank temperature control box is set to 180° C. to 195° C.

[0071] In the step C, the thickness of the silicone resin on the surface of the twisted silver-plated conductor is 0.05-0.1 mm.

[0072] In the step E, the line speed through the horizontal reciprocating vulcanizing furnace is 12-15 m / min, the estimated vulcanizing time is 30 seconds, and the vulcanizing temperature is set at 265° C.-275° C.

[0073] In the step D, the moderate drying time of the silicone resin is 1 minute, the pipeline temperature control range is 180° C. to 195° C., and the moderate drying temperature is 205° C. to 215° C.

[0074] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0075] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0076] Technical personnel should note that although the present invention has been described according to the above specific implementation methods, the inventive concept of the present invention is not limited to this invention, and any modification using the inventive concept will be included in the scope of protection of this patent.

Claims

1. A process for preparing a waterproof multifunctional electric wire, characterized in that: The invention discloses a waterproof multifunctional electric wire preparation device comprising a wire-paying module, a preheating buffer module, a straightening and pressing module, a heating and sizing module, a drying module, a vulcanizing module, an air-drying and cooling module and a wire-receiving module. All the modules are independently arranged. The straightening and pressing module comprises a straightening table (4) and a pressing die (5). The heating and sizing module comprises a multi-guide wheel reciprocating isosceles trapezoidal high-temperature oil tank (6) and a vacuum sizing die sleeve (7). The drying module comprises a vertical reciprocating silicone resin oil tank (8) and a medium-temperature drying pipeline (9). The vulcanizing module comprises a horizontal vulcanizing furnace (10) and a temperature control box. The air-drying and cooling module comprises an air wiper, a take-up machine and a wire storage rack. The vacuum sizing die sleeve (7) is provided with a first bracket (71) for its installation and a cyclone vacuum pump (72) connected to the first bracket via an air pipe. The wire-paying module adopts a double-axis power wire-paying rack (1). The wire-receiving module adopts a spark machine and a wire-receiving machine. The preheating buffer module comprises a conductor preheating machine (2) and a tension buffer rack (3). The preparation process steps of the waterproof multifunctional wire include: Step A, the stranded silver-plated conductor is paid out through a double-axis power pay-off stand (1), the temperature of the conductor preheater is set, the wire-passing copper wheel of the conductor preheater (2) is adjusted in size and temperature preheating according to the diameter of the stranded conductor, the upper and lower tension wheels and the left and right wire-passing guide wheels of the tension buffer stand (3) are adjusted to pay out, and the upper and lower tension wheels and the tension spring are flexibly adjusted according to the diameter of the stranded wire to ensure that the wire-passing height of the tension buffer stand (3) and the five conductors of the straightening table (4) are in a horizontal straight line; Step B, the vacuum sizing die sleeve (7) presses the stranded silver-plated conductor into a shape closer to a circle, and vacuum extraction is performed on the die sleeve and the die tube by a cyclone vacuum pump. During operation, compressed air enters the injection channel through the inlet, forming a hypersonic airflow of nearly 3 times the speed of sound in the injection channel. The powerful suction capacity of the hypersonic airflow is used to suck the gas in the vacuum cavity through the vacuum port to obtain a normal vacuum; Step C, the stranded silver-plated conductor passes through a stainless steel ceramic guide wheel and enters a horizontal multi-guide wheel reciprocating isosceles trapezoidal high-temperature oil tank (6), and undergoes six guide wheel cycles to reciprocate once; Step D, the stranded silver-plated conductor passes through a stainless steel ceramic guide wheel and enters a vertical reciprocating silicone oil tank (8) and a medium-temperature drying pipe (9); Step E, the stranded silver-plated conductor is fully vulcanized in a horizontal reciprocating vulcanization furnace; Step F, the stranded silver-plated conductor is wound on the wire storage rack for air cooling and drying, and enters the take-up machine through the nylon meter pressure wheel and the wind wiper. The silicone rubber wire is wound around the take-up machine for multiple turns and then naturally cooled by air. Then, an online high-voltage test is performed through the spark machine. Before passing through the spark machine, it is necessary to confirm that the high-voltage beads of the spark machine are intact and good, and the discharge ground wire of the spark machine is fully grounded, and finally enters the take-up machine for winding; The multi-guide wheel reciprocating isosceles trapezoidal high-temperature oil tank is a stranded silver-plated conductor that, after being evacuated by a cyclone vacuum pump, enters the isosceles trapezoidal high-temperature oil tank through a sizing die sleeve to complete the first round of immersion in silicone resin, forming a preliminary insulating protective film on the surface of the conductor; the stranded silver-plated conductor and the protective film are unified as the wire-retracting and paying-off device passes through the outlet guide wheel, turns from horizontal to vertical, passes through the horizontal guide wheel and the vertical wire-passing pipe, enters the vertical guide wheel, and then goes down through the silicone resin oil tank stainless steel guide wheel and is immersed in the second layer of silicone resin. After three reciprocating immersions in silicone resin and three heating resistance wire bakings, it enters the horizontal vulcanization furnace device.

2. The preparation process of the waterproof multifunctional electric wire according to claim 1, characterized in that: In step C, the temperature of the silicone oil tank temperature control box is set to 180° C. to 195° C.

3. The preparation process of the waterproof multifunctional electric wire according to claim 1, characterized in that: In the step C, the thickness of the silicone resin on the surface of the twisted silver-plated conductor is 0.05-0.1 mm.

4. The preparation process of the waterproof multifunctional electric wire according to claim 1, characterized in that: In the step E, the line speed through the horizontal reciprocating vulcanizing furnace is 12-15 m / min, the estimated vulcanizing time is 30 seconds, and the vulcanizing temperature is set at 265° C.-275° C.

5. The preparation process of the waterproof multifunctional electric wire according to claim 1, characterized in that: In the step D, the moderate drying time of the silicone resin is 1 minute, the pipeline temperature control range is 180° C. to 195° C., and the moderate drying temperature is 205° C. to 215° C.

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