CN116779253A - Production method of special-shaped cable - Google Patents

Abstract

The invention discloses a production method of a special-shaped cable, which comprises the following steps: s1, a plurality of conductors pass through a conductor doubling die and an insulating layer extrusion die after being arranged in a straight line, an insulating material in a molten state is input into the insulating layer extrusion die and wraps the conductors to obtain a single special-shaped cable core, and the special-shaped cable core is wound on a first wire frame; s2, the special-shaped cable core passes through a wrapping mechanism to form a wrapping layer by wrapping tape on the special-shaped cable core through a wrapping mechanism, then the special-shaped cable core with the wrapping layer directly passes through braiding equipment, the braiding equipment braiding metal wires on the wrapping layer to form a braiding layer, and the special-shaped cable core with the wrapping layer and the braiding layer is wound on a second wire frame; s3, paying out the special-shaped cable core with the wrapping layer and the braiding layer from the second wire frame and passing through an outer sheath extruder, and wrapping the braiding layer after the outer sheath extruder extrudes the outer sheath material, so that the special-shaped cable is formed. The invention has the advantage of improving the production efficiency.

Description

Production method of special-shaped cable

Technical Field

The invention relates to the technical field of cables, in particular to a production method of a special-shaped cable.

Background

The cable generally includes cable core, around covering, weaving layer, sheath etc. around the covering around the core, the weaving layer forms the parcel around the covering, the sheath forms the parcel to the weaving layer, the cable core comprises the conductor and the insulating layer of parcel conductor at least, the production process of preceding cable at present is:

(1) Firstly, an insulating material is wrapped on the peripheral surface of a conductor through an insulating layer formed by extrusion, so that a cable core is obtained, and the cable core is wound on a first wire frame.

(2) And paying out the cable core from the first wire frame, enabling the cable core to pass through the wrapping mechanism, enabling the wrapping belt to wrap the cable core to form a wrapping layer, and winding the wrapping cable core on the second wire frame.

(3) And paying out the wrapped cable core from the second wire frame, enabling the wrapped cable core to pass through a braiding device, braiding a braiding layer on the wrapping layer by the braiding device to form a braiding layer, and winding the cable core with the wrapping layer and the braiding layer on the third wire frame.

(4) The cable core with the wrapping and braiding is paid out from the third wire frame, the cable core with the wrapping and braiding is passed through a jacket extrusion device, and the jacket material is wrapped on the braiding.

As can be seen from the production process of the cable, the cable needs to be wound once after each step, and needs to be released from the wire frame when one working procedure is carried out, so that the method is complex, and has the defects of long time consumption and low production efficiency.

Disclosure of Invention

The invention provides a production method of a special-shaped cable for improving production efficiency.

The production method of the special-shaped cable comprises the following steps:

s1, arranging a plurality of conductors in a straight line, then enabling the conductors to pass through a conductor doubling mould and an insulating layer extrusion mould, moving the conductors along the axial direction of the doubling mould and the insulating layer extrusion mould under the traction action of a traction device, keeping the arrangement positions of the conductors under the constraint action of the doubling mould and the insulating layer extrusion mould, inputting an insulating material in a molten state into the insulating layer extrusion mould and wrapping the conductors to obtain a single special-shaped cable core, and winding the special-shaped cable core on a first wire frame;

s2, paying out a plurality of special-shaped cable cores from a first wire frame, enabling the special-shaped cable cores to pass through a doubling mold to enable the special-shaped cable cores to be gathered and then to reach a wrapping mechanism, enabling the special-shaped cable cores to pass through the wrapping mechanism to enable wrapping belts to be wrapped on the special-shaped cable cores to form wrapping layers through the wrapping mechanism, enabling the special-shaped cable cores with the wrapping layers to directly pass through braiding equipment, braiding metal wires on the wrapping layers by the braiding equipment to form braiding layers, and enabling the special-shaped cable cores with the wrapping layers and the braiding layers to be wound on a second wire frame;

s3, paying out the special-shaped cable core with the wrapping layer and the braiding layer from the second wire frame and passing through an outer sheath extruder, and wrapping the braiding layer after the outer sheath extruder extrudes the outer sheath material, so that the special-shaped cable is formed.

The working process of the invention is as follows: winding a plurality of special-shaped cable cores on a first wire frame respectively, paying out the special-shaped cable cores from the first wire frame, enabling the special-shaped cable cores to pass through a doubling mould to enable the special-shaped cable cores to be gathered and then to reach a wrapping mechanism, enabling the special-shaped cable cores to pass through the wrapping mechanism, enabling the special-shaped cable cores with wrapping layers to pass through braiding equipment after wrapping tape and wrapping the special-shaped cable cores to form wrapping layers through the wrapping mechanism, braiding metal wires on the wrapping layers by the braiding equipment to form braiding layers, and winding the special-shaped cable cores with the wrapping layers and the braiding layers on a second wire frame. Therefore, after the doubling mold, the wrapping belt frame and the wrapping mechanism are arranged on the original braiding mechanism, the special-shaped cable core is wrapped and braided on the same equipment, and compared with a plurality of procedures in the background technology, the method saves time and cost.

Drawings

Fig. 1 is a structural diagram of a conductor doubling mold.

Fig. 2 is a structural view of an insulation layer extrusion die.

Fig. 3 is a schematic diagram of a conductor passing through a conductor doubling die and an insulation extrusion die.

Fig. 4 is a schematic view of a wrap braiding apparatus for a shaped cable.

Fig. 5 is a schematic view of a braiding machine with a doubling mold and a wrapping machine attached thereto.

Fig. 6 is a top view of the parallel wire mold.

Fig. 7 is a cross-sectional view of a parallel mold.

Fig. 8 is a front view of the first cover member and the second cover member after being unfolded.

Fig. 9 is a rear view of the first and second cover members after being unfolded.

Fig. 10 is a diagram of the cooperation of the wrapping mold and the profiled cable core in the wrapping mechanism.

Fig. 11 is a diagram of the fit of a braiding mold in a braiding vehicle with a profiled cable core having a wrap.

Fig. 12 is a cross-sectional structural view of the special-shaped cable.

The reference symbols in the drawings:

the special-shaped cable comprises a special-shaped cable core A, a conductor A0, an insulating layer A1, a rack 1a, a braiding machine 1B, a first wire frame 2, a second wire frame 3, a taping frame 10, a taping mechanism 11, a taping layer 12, a braiding layer 13, a support 20, a strip-shaped hole 20a, a doubling mold 21, a doubling hole 21a, an annular groove 21B, a first adjusting screw 22, a first elastic adjusting pad 23, a first coating part 23a, a second coating part 23B, a plug hole 23C, a plug block 23d, a first flanging 23e, a second flanging 23f, a compression screw 24, a doubling pipe 25, a wire wheel 26, a conductor doubling mold B, a doubling mold body 27, a first guide hole 28, a first doubling hole 29, an insulating layer extrusion mold C, an extrusion mold body 30, a second guide hole 31, a first extrusion hole 32 and an outer sheath 33.

Detailed Description

The production method of the special-shaped cable comprises the following steps:

s1, a plurality of conductors A0 pass through a conductor doubling mould B and an insulating layer extrusion mould C after being arranged in a straight line, the conductors A0 move along the axial direction of the doubling mould B and the insulating layer extrusion mould C under the traction action of traction equipment, the arrangement positions of the conductors A0 are kept under the joint constraint action of the doubling mould B and the insulating layer extrusion mould C, in the process, insulating materials in a molten state are input into the insulating layer extrusion mould C and form a package on the conductors A0, a single special-shaped cable core A is obtained, and the special-shaped cable core A is wound on a first wire frame 2.

S2, paying out a plurality of special-shaped cable cores A from the first wire frame 2, enabling the special-shaped cable cores A to pass through a doubling mold to enable the special-shaped cable cores A to be gathered up and then to reach the wrapping mechanism 11, enabling the special-shaped cable cores A to pass through the wrapping mechanism 11, enabling the special-shaped cable cores A with the wrapping layer 12 to directly pass through braiding equipment after wrapping the wrapping belt and wrapping the special-shaped cable cores 11 to form the wrapping layer 12, braiding metal wires on the wrapping layer 12 by the braiding equipment to form a braiding layer 13, and enabling the special-shaped cable cores with the wrapping layer and the braiding layer to be wound on the second wire frame 3.

S3, paying out the special-shaped cable core with the wrapping layer and the braiding layer from the second wire frame 3 and passing through an outer sheath extruder, and wrapping the braiding layer after the outer sheath extruder extrudes the outer sheath material, so that the special-shaped cable is formed.

The outer sheath consists of the following raw materials in parts by weight: 100 parts of polymer base material, 100 parts of surface-treated inorganic flame retardant, 20 parts of trihydrazinotriazine, 30 parts of diethyl aluminum hypophosphite, 2 parts of nano montmorillonite, 1 part of smoke suppressant ammonium octamolybdate, 4 parts of composite antioxidant, 4 parts of processing aid and 4 parts of environment-friendly color master batch.

The polymer base material consists of the following raw materials in parts by weight: 10 parts of radiation grafted maleic anhydride low density polyethylene, 20 parts of olefin block copolymer, 55 parts of ethylene-vinyl acetate copolymer with VA content of 28%, 5 parts of ethylene-octene copolymer and 5 parts of ethylene-methyl methacrylate copolymer with MA content of 22%.

The inorganic flame retardant for surface treatment is aluminum hydroxide, the purity is more than 99.7 percent, and the particle size d50 is less than 1.5 mu m. Adding the mixture into a high-speed mixer, setting the rotation speed of the high-speed mixer to 2000rpm and setting the temperature to 140-150 ℃; monoalkoxytitanate and n-butanol are mixed according to the following ratio of 1:2, mixing uniformly, adding the mixture into a high-speed mixer through a nozzle at a speed of 200ml/min, simultaneously raising the rotating speed of the high-speed mixer to 3000rpm, mixing for 5min, and completely removing the n-butanol serving as a diluent.

The compound antioxidant comprises: 2 parts of a primary antioxidant and 1 part of a secondary antioxidant, wherein the primary antioxidant is a composition consisting of: pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate (1010), octadecyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate (1076), N '-bis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl ] hydrazine (1024), bis (2-methyl-5-tert-butyl-4-hydroxyphenyl) sulfide, 4' -thiobis (6-tert-butyl-3-methylphenol) (300); the auxiliary antioxidants are didodecyl thiodipropionate and dioctadecyl thiodipropionate.

The processing aid consists of a crosslinking sensitizer and a lubricant, wherein the weight part of the crosslinking sensitizer is 1 part, and the weight part of the lubricant is 5 parts. The crosslinking sensitizer comprises trimethylolpropane trimethacrylate and triallyl isocyanurate. The lubricant consists of polyethylene wax, organic siloxane, silicone master batch and ethylene bis stearamide.

The preparation process of the outer sheath material comprises the following steps: weighing a polymer substrate, a surface-treated inorganic flame retardant, trihydrazinotriazine, diethyl aluminum hypophosphite, nano montmorillonite, an anti-smoke agent ammonium octamolybdate, a composite antioxidant, a processing aid and environment-friendly color master batch according to parts, putting the mixture into a pressurized internal mixer, controlling the pressure of the internal mixer to be 2.53MPa, and mixing the components in the internal mixer to 175 ℃ to uniformly mix the components to form a mixed soft jelly; the obtained mixed soft jelly is put into a double-screw extruder to be extruded, and the granular outer sheath material is obtained, wherein the length of the granular outer sheath material is 0.5cm, and the diameter of the bottom surface is 0.25cm.

According to the cable with the formula, the inorganic flame retardant, the diethyl aluminum hypophosphite and the trihydrazino triazine with the surface treatment are added, an acid source and an air source are introduced into the material, and the carbon layer formed by the inorganic flame retardant is matched, so that the flame retardant property of the cable can be greatly improved through the barrier effect of the carbon layer.

As shown in fig. 1 to 12, the wrapping and braiding apparatus for a special-shaped cable according to the present invention includes a braiding mechanism, a doubling mold, a wrapping tape rack 10, and a wrapping mechanism 11, wherein in the special-shaped cable, a cable core may be composed of two non-circular special-shaped cable cores a, for example, two cable cores with rectangular or semicircular cross sections, each special-shaped cable core a includes a conductor and an insulating layer A1 wrapping the conductor A0, wherein the conductor A0 is formed by twisting a plurality of discrete metal bodies, for example, 2 or 3 twisted conductors A0 are disposed in each special-shaped cable core a, and the conductors A0 need to be arranged according to a position of a corresponding design when the insulating material is extruded, for example, the conductors A0 are arranged in parallel.

In the invention, in order to arrange a plurality of stranded conductors A0 according to the positions of corresponding designs, a conductor doubling die B is arranged before an insulating layer extrusion die C of an insulating layer A1, the conductor doubling die B is used for arranging a plurality of conductors A0 in parallel, the conductor doubling die B comprises a doubling die body 27, a first guide hole 28 and a first doubling hole 29, the first guide hole 28 is conical, the first guide hole 28 is used for a plurality of conductors A0, the first doubling hole 29 is positioned at the downstream of the first guide hole 28, the first doubling hole 29 is composed of a flat part and arc-shaped parts positioned at two sides of the flat part, the flat part is in clearance fit with the conductors A0, thereby arranging the plurality of conductors A0 in parallel, and the arc-shaped parts are used for preventing the conductors A0 from being scratched and the like.

The insulating layer extrusion die C includes an extrusion die body 30, a second guide hole 31 provided on the extrusion die body 30, a first extrusion hole 32, the second guide hole 31 being tapered, the first extrusion hole 32 being composed of a flat portion and arc portions located on both sides of the flat portion. The thermoplastic elastomer material is heated and melted and then fed into the first extrusion hole 32, and the plurality of conductors A0 arranged in parallel form an outer sheath 33 around the conductors A0 in a melted state while passing through the first extrusion hole 32.

The purpose of the present invention is to fix two or more profiled cores a together and then to form a whole by winding the cladding 12, and then to form the braid 13 by braiding wires on the winding, and the following details are given for each part and the relationship between the parts:

the braiding mechanism comprises a frame 1a and a braiding machine 1b for braiding metal wires on a special-shaped cable core A wound with a winding layer 12, the braiding machine 1b is arranged on the frame 1a, a plurality of metal wires (such as copper wires) are braided on the winding layer 12 through the braiding machine 1b, and the structure of the braiding machine 1b is in the prior art and is not repeated herein.

In this embodiment, since the plurality of cable cores are combined and then wrapped and woven, the plurality of cable cores need to be combined together before being wrapped, and thus the present embodiment employs a combining mold for combining the plurality of shaped cable cores a, for example, two shaped cable cores a are combined together, and the combining mold is fixed to the frame 1 a.

The doubling mould comprises a support 20, a doubling mould 21, a first adjusting screw 22 and a first elastic adjusting pad 23 used for being in contact with the surface of the special-shaped cable core A, wherein the support 20 is fixed with the frame 1a, a first accommodating cavity is formed in the support 20, the doubling mould 21 is matched with the first accommodating cavity, a first screw hole is formed in the side wall of the support 20, a doubling hole 21a is formed in the doubling mould 21, a second screw hole communicated with the doubling hole 21a is formed in the side wall of the doubling mould 21, the first adjusting screw 22 is matched with the first screw hole and the second screw hole, the first elastic adjusting pad 23 is located in the doubling hole 21a, and the first elastic adjusting pad 23 is matched with the end part of the first adjusting screw 22. The first set screw 22 may be one or more.

When the special-shaped cable cores A pass through the doubling mold 21, because the first elastic adjusting pad 23 is positioned in the doubling hole 21a of the doubling mold 21, the distance between the first elastic adjusting pad 23 and the special-shaped cable cores A can be changed by adjusting the first adjusting screw 22, for example, the first elastic adjusting pad 23 and the special-shaped cable cores A can form a gap or excessively matched, so that when the two special-shaped cable cores A pass through the first elastic adjusting pad 23, the first elastic adjusting pad 23 has a guiding or binding effect on the special-shaped cable cores A, and the two special-shaped cable cores A are more easily attached together, so that the follow-up wrapping mechanism 11 is beneficial to wrapping the two special-shaped cable cores A.

The doubling mold further comprises a pressing screw 24, a strip-shaped hole 20a is formed in the support 20, the pressing screw 24 penetrates through the strip-shaped hole 20a to be connected with the frame 1a, and the support 20 is fixed on the frame 1a through the pressing screw 24. The position of the support 20 can be changed by matching the pressing screw 24 with the strip-shaped hole 20a, so that the position of the doubling mold 21 can be adjusted, and the center of the doubling mold 21 and the center of the wrapping mechanism 11 are positioned on the same straight line as much as possible.

In this embodiment, the first elastic adjusting pad 23 includes a first covering member 23a and a second covering member 23b, the first covering member 23a and the second covering member 23b each have an opening, the shapes of the first covering member 23a and the second covering member 23b follow the shape of the shaped cable core a, when the shaped cable core a is semicircular, the first covering member 23a and the second covering member 23b preferably adopt arc-shaped members, for example, the thickness of the first covering member 23a and the second covering member 23b is smaller than 2mm, and the first covering member 23a and the second covering member 23b are curved in a semicircle, and the first covering member 23a and the second covering member 23b have good elasticity. When the shaped cable core a is rectangular, the first and second cover members 23a, 23b are bent in a U-shape.

The peripheral surface of the first cladding member 23a is provided with a plug hole 23c, the end part of the second cladding member 23a is provided with a plug block 23d, the end part of the second cladding member 23b is matched with the inner wall of the first cladding member 23a, the plug block 23d penetrates through the plug hole 23c, a through hole is formed between the first cladding member 23a and the second cladding member 23b in a surrounding manner, and therefore two special-shaped cable cores A can penetrate through the through hole. The first cover member 23a or the second cover member 23a is pushed to move inward by the first adjusting screw 22, so that the first cover member 23a or the second cover member 23a moves in the radial direction, the inner diameter of the through hole can be reduced, and the tool (for example, a screw driver) is used to apply an outward force to the inner wall of the through hole, so that the inner diameter of the through hole can be increased.

The back that first cladding part 23a deviates from dysmorphism cable core A is equipped with integrative first turn-ups 23e, the back that second cladding part 23b deviates from dysmorphism cable core A is equipped with integrative second turn-ups 23f, turn over from the both ends of first cladding part 23a and form first turn-ups 23e, turn over from the both ends of second cladding part 23b and form the transition portion of circularity between first turn-ups 23e and first cladding part 23a, form the transition portion of circularity between second turn-ups 23f and second cladding part 23b, through the transition portion of circularity, can avoid scratching dysmorphism cable core A, simultaneously through first turn-ups 23e and second turn-ups 23f, can cooperate with the ring channel 21b that sets up on the parallel line hole 21a inner wall, namely, insert first turn-ups 23e and second turn-ups 23f into the ring channel 21b on the parallel line hole 21a inner wall, make first cladding part 23a and second cladding part 23a obtain the location respectively. When the first and/or second cover part 23a, 23a are/is adjusted by the first adjusting screw 22, this is a fine adjustment, for example, within 1mm, so that the fit of the first flange 23e and/or the second flange 23f with the annular groove 21b is not impaired, i.e. the first flange 23e and/or the second flange 23f still have a part located in the annular groove 21 b.

The wrapping belt frame 10 is provided with a wrapping belt, the wrapping belt frame 10 is fixed on the frame 1a, and the structure of the wrapping belt frame 10 is the prior art and is not repeated here. When the special-shaped cable core A is in operation, the wrapping belt is released from the wrapping belt frame 10, the special-shaped cable core A passing through the doubling mold is wrapped under the action of the wrapping mechanism, and the wrapping belt can be a polyester belt or a composite belt, such as an aluminum-plastic composite belt, a copper-plastic composite belt and the like.

The wrapping mechanism 11 wraps the wrapping belt on the plurality of special-shaped cable cores A which are gathered, the wrapping mechanism 11 is arranged on the frame 1a, the wrapping mechanism 11 is positioned at the downstream of the doubling mold, and the wrapping mechanism 11 is positioned at the upstream of the braiding machine 1 b. The wrapping mechanism 11 wraps the wrapping belt on the plurality of the special-shaped cable cores A which are gathered together to form a wrapping layer 12, so that the special-shaped cable cores A are fixed into a whole by the wrapping layer 12, then the metal wires are woven on the wrapping layer 12 through the weaving vehicle 1b to form a weaving layer 13, and the weaving layer 13 wraps the wrapping layer 12.

Because a plurality of special-shaped cable cores A are pulled to move, special-shaped cable cores A are in a non-circular structure in the moving process, so that the distribution positions of a plurality of special-shaped cable cores A are changed once the special-shaped cable cores A rotate, and the bulge can be generated in the subsequent wrapping process. Based on this, in order to avoid the rotation of the profiled cable cores a, the invention further provides a doubling tube 25 and a wire wheel 26, the doubling tube 25 is positioned upstream of the wire wheel 26, the wire wheel 26 is rotatably mounted on the frame 1a, the wire wheel 26 is positioned upstream of the doubling mold 21, an annular groove 26a is arranged on the circumferential surface of the wire wheel 26, and a plurality of profiled cable cores a discharged from the first wire frame 2 firstly pass through the doubling tube 26, then pass through the annular groove 26a of the wire wheel 26, and then pass through the doubling mold 21.

The wire doubling pipe 25 is used for enabling the wire doubling pipe 25 to form a first binding effect on the special-shaped cable cores A, the wire doubling pipe 26 is used for enabling the wire doubling pipe 26 to form a second binding effect on the special-shaped cable cores A, the wire doubling mold 21 is used for enabling the wire doubling mold 21 to form a third binding effect on the special-shaped cable cores A, and tensioning force is generated on the special-shaped cable cores A through the wire doubling pipe 25, the wire doubling pipe 26 and the wire doubling mold 21, so that the situation that a single special-shaped cable core A rotates or overturns in the traction moving process is avoided, and bulges are generated after the special-shaped cable cores A are wrapped into a whole is avoided.

In the novel working process, a plurality of special-shaped cable cores A are respectively wound on the first wire frame 2, the special-shaped cable cores A are discharged from the first wire frame 2, the special-shaped cable cores A pass through a doubling die to enable the special-shaped cable cores A to reach the wrapping mechanism 11 after being gathered, the special-shaped cable cores A pass through the wrapping mechanism 11, the special-shaped cable cores A with the wrapping layer 12 are directly made to pass through braiding equipment after wrapping the wrapping belt and wrapping the special-shaped cable cores 11 to form the wrapping layer 12, the braiding equipment is used for braiding metal wires on the wrapping layer 12 to form a braiding layer 13, and the special-shaped cable cores with the wrapping layer and the braiding layer are wound on the second wire frame 3.

Finally, it should be noted that: the above embodiments are merely preferred embodiments of the present invention for illustrating the technical solution of the present invention, but not for limiting the scope of the present invention; although the invention has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions.

Claims (7)

1. The production method of the special-shaped cable comprises the following steps:

s1, arranging a plurality of conductors (A0) in a straight line, then enabling the conductors to pass through a conductor doubling mould (B) and an insulating layer extrusion mould (C), enabling the conductors (A0) to move along the axial direction of the doubling mould (B) and the insulating layer extrusion mould (C) under the traction action of traction equipment, enabling the arrangement positions of the conductors (A0) to be kept under the constraint action of the doubling mould (B) and the insulating layer extrusion mould (C), inputting insulating materials in a molten state into the insulating layer extrusion mould (C) and wrapping the conductors (A0), and obtaining a single special-shaped cable core (A), wherein the special-shaped cable core (A) is wound on a first wire frame (2);

s2, paying out a plurality of special-shaped cable cores (A) from a first wire frame (2), enabling the special-shaped cable cores (A) to pass through a doubling mold to enable the special-shaped cable cores (A) to reach a wrapping mechanism (11) after being gathered, enabling the special-shaped cable cores (A) to pass through the wrapping mechanism (11), enabling wrapping belts to be wrapped on the special-shaped cable cores (11) through the wrapping mechanism (11) to form wrapping layers (12), enabling the special-shaped cable cores (A) with the wrapping layers (12) to pass through braiding equipment, braiding wires on the wrapping layers (12) by the braiding equipment to form braiding layers (13), and enabling the special-shaped cable cores with the wrapping layers and the braiding layers to be wound on a second wire frame (3);

s3, paying out the special-shaped cable core with the wrapping layer and the braiding layer from the second wire frame (3) and passing through an outer sheath extruder, and wrapping the braiding layer after the outer sheath extruder extrudes the outer sheath material, so that the special-shaped cable is formed.

2. The method of producing a shaped cable according to claim 1, wherein the braiding apparatus comprises a braiding mechanism comprising a frame (1 a), a braiding car (1 b), the braiding apparatus further comprising:

the doubling mold is used for enabling the plurality of special-shaped cable cores (A) to be gathered, and is fixed on the frame (1 a);

the wrapping belt rack (10) is provided with wrapping belts, and the wrapping belt rack (10) is fixed on the frame (1 a);

the wrapping mechanism (11) wraps the wrapping belt on the plurality of special-shaped cable cores (A) which are gathered, the wrapping mechanism (11) is arranged on the frame (1 a), the wrapping mechanism (11) is positioned at the downstream of the doubling mold, and the wrapping mechanism (11) is positioned at the upstream of the braiding machine (1 b).

3. The production method of the special-shaped cable according to claim 2, wherein the doubling mold comprises a support (20), a doubling mold (21), a first adjusting screw (22) and a first elastic adjusting pad (23) used for being in contact with the surface of the special-shaped cable core (A), the support (20) is fixed with the frame (1 a), a first accommodating cavity is formed in the support (20), the doubling mold (21) is matched with the first accommodating cavity, a first screw hole is formed in the side wall of the support (20), a doubling hole (21 a) is formed in the doubling mold (21), a second screw hole penetrating through the doubling hole is formed in the side wall of the doubling mold (21), the first adjusting screw (22) is matched with the first screw hole and the second screw hole, the first elastic adjusting pad (23) is located in the doubling hole (21 a), and the first elastic adjusting pad (23) is matched with the end portion of the first adjusting screw (22).

4. A method of producing a shaped cable according to claim 3, characterized in that the doubling mould further comprises a compression screw (24), the support (20) is provided with a bar-shaped hole (20 a), the compression screw (24) is connected with the frame (1 a) through the bar-shaped hole (20 a), and the support (20) is fixed on the frame (1 a) by the compression screw (24).

5. A production method of a special-shaped cable according to claim 3, wherein the first elastic adjusting pad (23) comprises a first cladding component (23 a) and a second cladding component (23 b), the first cladding component (23 a) and the second cladding component (23 b) are provided with openings, the peripheral surface of the first cladding component (23 a) is provided with a plug hole (23 c), the end part of the second cladding component (23 a) is provided with a plug block (23 d), the end part of the second cladding component (23 b) is matched with the inner wall of the first cladding component (23 a), and the plug block (23 d) penetrates through the plug hole (23 c) to form a through hole between the first cladding component (23 a) and the second cladding component (23 b).

6. Method for producing a profiled cable according to claim 2, wherein the braiding apparatus further comprises a doubling tube (25) and a wire guide wheel (26), the doubling tube (25) being located upstream of the wire guide wheel (26), the wire guide wheel (26) being rotatably mounted on the frame (1 a), the wire guide wheel (26) being located upstream of the doubling die (21), an annular groove (26 a) being provided on the circumferential surface of the wire guide wheel (26).

7. The method of producing a shaped cable according to claim 6, wherein the wire doubling pipe (25) forms a first binding action on the shaped cable cores (a) when passing through the wire doubling pipe (25), the shaped cable cores (a) are formed a second binding action by the wire guiding wheel (26) when passing through the wire guiding wheel (26), the shaped cable cores (a) are formed a third binding action by the wire doubling mold (21) when passing through the wire doubling mold (21), and the shaped cable cores (a) are bound and tensioned by the wire doubling pipe (25), the wire guiding wheel (26) and the wire doubling mold (21) to prevent the individual shaped cable cores (a) from rotating or turning during the pulling movement.