KR101089998B1 - Manufacturing method of line assembly with flexibility and line assembly with flexibility using the manufacturing method - Google Patents

Abstract

The present invention relates to a method for manufacturing a flexible wire rod assembly and a stretchable wire rod assembly manufactured by the method, and in particular, a method for producing a flexible wire rod assembly having elasticity while performing a heating function and / or a current and signal conduction function. It is to provide a flexible wire rod assembly prepared by the method.

Method for producing a flexible wire rod assembly according to the present invention, the internal supply step of advancing the extension formed of a linear member; A coil winding step of forming a coil forming wire rod by supplying and winding an outer line forming a coil on an outer circumferential surface of the inner line which is performed through the inner line supplying step; A wire rod arrangement step of arranging or weaving one or more strands of the coil forming wire rod formed by the coil winding step in a desired form to form a coil assembly; And an extension removing step of removing the extension located at the inner center of the coil forming wire so that only the external ray remains.

According to this configuration, since the wire is wound in the form of coils, it is possible to produce a flexible wire rod assembly having elasticity while being able to perform a heating function and / or a current and signal conduction function. In addition, since the coil assembly is first formed in the state where the internal wire is present inside the external wire, the internal wire is removed, thereby preventing the coil parts from being entangled or twisted with each other, so that the flexible wire rod assembly can be conveniently and quickly manufactured. In addition, since the flexible wire rod assembly can be formed to have a thin thickness, it can be used as a material for artificial skin, and when it is configured with a heater such as a heating pad, a hollow part is formed inside the outer skin layer, thereby improving heat retention and thermal efficiency. The cushion function is provided to improve convenience in use.

Flexible Wire Rod Assembly, Internal, External, Outer Layer, Coil

Description

Manufacturing method of elastic wire rod assembly and elastic wire rod assembly manufactured by the method {MANUFACTURING METHOD OF LINE ASSEMBLY WITH FLEXIBILITY AND LINE ASSEMBLY WITH FLEXIBILITY USING THE MANUFACTURING METHOD}

The present invention relates to a method for manufacturing a flexible wire rod assembly and a stretchable wire rod assembly manufactured by the method, and more particularly, to a flexible wire rod assembly having a heating function and / or an electric current and a signal carrying function. It relates to a method and a flexible wire rod assembly prepared by the method.

In general, the surface heater is configured by arranging heating wires at regular intervals on the pads.

Heating wires mainly use metal wires such as copper wires, and recently, the application of heating wires using carbon fibers is gradually increasing. Since heating wire is a rigid wire rod that does not have elasticity, it is not applicable to clothing, equipment, or mechanical equipment requiring activity, and is limited to a heater that does not require elasticity such as an electric blanket or an electric blanket. Have

In addition, since the heating wire does not have sufficient flexibility, it is very difficult to install or arrange the heating wire (for example, when the heating wire is installed closely or bent sharply). In addition, the heating wire heats the surroundings by heat radiated to its outer surface (outer circumferential surface), but has a disadvantage in that the heat transfer efficiency is low because the surface area in contact with the outside is determined.

On the other hand, the heating pad using the heating wire is manufactured in the form of the heating wire to the bottom pad in a predetermined form and the cover pad attached to the upper surface, the conventional heating wire is a wire rod having a wire diameter of most 0.1mm or more heat that can be produced The thickness of the pad is a few millimeters (mm) or more, which is relatively thick. Accordingly, the heating pad manufactured in the above-described manner can be used for a heater that does not require great elasticity, but it cannot be used in high-tech fields or when elasticity is required. For example, the conventional heating pads cannot be used as smart clothing textile paper or artificial skin in the robot field, where the elasticity, the heating function and / or the current and signal conduction function are required, but the thickness is thin.

The present invention has been made in view of the above-mentioned conventional problems, the method of producing a flexible wire rod assembly having elasticity while performing the heating function and / or current and signal conduction function and the flexible wire rod assembly prepared by the method The purpose is to provide.

Another object of the present invention is to provide a flexible wire rod assembly which has elasticity while performing heating function and / or energizing current and signal, and having a thin thickness (less than 1 micrometer). The purpose is to provide a flexible wire rod assembly prepared by the method.

Method for producing a flexible wire rod assembly for achieving the object of the present invention as described above, the internal supply step of advancing the extension formed of a linear member; A coil winding step of forming a coil forming wire rod by supplying and winding an outer line forming a coil on an outer circumferential surface of the inner line which is performed through the inner line supplying step; A wire rod arrangement step of arranging or weaving one or more strands of the coil forming wire rod formed by the coil winding step in a desired form to form a coil assembly; And an extension removing step of removing the extension located at the inner center of the coil forming wire so that only the external ray remains.

In addition, the method for producing a flexible wire rod assembly for achieving the object of the present invention as described above, the extension supply step of advancing the extension formed of a linear member; A coil winding step of forming a coil forming wire rod by supplying and winding an outer line forming a coil on an outer circumferential surface of the inner line which is performed through the inner line supplying step; A wire rod arrangement step of arranging or weaving one or more strands of the coil forming wire rod formed by the coil winding step in a desired form to form a coil assembly; An extension removal step of removing the extension located at the inner center of the coil forming wire so that only the external ray remains; And an outer skin layer forming step of forming an outer skin layer on the coil assembly from which the inner wire is removed by the inner removing step.

In addition, the method for producing a flexible wire rod assembly for achieving the object of the present invention as described above, the internal supply step of advancing the extension formed of a linear member; A coil winding step of forming a coil forming wire rod by supplying and winding an outer line forming a coil on an outer circumferential surface of the inner line which is performed through the inner line supplying step; A wire rod arrangement step of arranging or weaving one or more strands of the coil forming wire rod formed by the coil winding step in a desired form to form a coil assembly; An outer skin layer forming step of forming an outer skin layer in the coil assembly; And an extension removing step of removing the internal wire located at the inner center of the coil forming wire after the execution of the envelope layer forming step so that the external wire and the envelope layer remain.

The outer skin layer forming step may be formed into a fiber yarn layer by weaving the fiber yarn on the coil forming wire.

In addition, the skin layer forming step may be formed of a resin layer by a resin.

The extension supply step is performed by pulling the extension coil wound around the extension supply means to be linearly moved at a predetermined movement speed while being released in a tensioned state, and the coil winding step is performed around the extension line that runs the rotating body having the outer line. This can be done by rotating it.

The coil winding step may include: a first coil winding step of winding the outer line in a clockwise direction; It may include a second coil winding step of winding the outer line in a counterclockwise direction.

The coil forming wire formed during the implementation of the coil winding step is carried out by being pulled out by the towing means.

The inner line is composed of any one of linear members made of carbon nanotubes, natural fiber yarns, synthetic fiber yarns, polymer fiber yarns, pulp fiber yarns, and metal yarns, and the outer line is carbon nanotubes, metal yarns, The linear member of any one of the linear members consisting of a fiber yarn containing a conductive material, an insulating coated metal yarn, and a metal yarn or a fiber yarn in which any one of gold (Au), silver (Ag), and copper (Cu) is plated It can be configured as.

The outer wire may have a conductive line having a low conductivity value and capable of conducting current and delivering an electric signal, and winding at least one strand or more linear members selected from a heating wire generated by a power source having a high resistance value.

The wire placement step may be formed by further arranging or weaving the fiber yarn together with the coil forming wire.

The extension removal step may be removed through a heating process when the material of the extension is formed of a material that is melted or vaporized when heated.

The extension removal step may be removed through a heating process when the material of the extension is formed of a material that is melted upon heating, and the extension may be formed of a material that is melted at a temperature lower than the melting temperature of the shell layer.

The extension removing step may be removed through an incineration process when the material of the extension is formed of a material that can be incinerated.

The extension removal step may be removed through a photolysis process when the material of the extension is formed of a photodegradable material.

The extension removing step may be removed by oxidative decomposition when the material of the extension is a material decomposed by an oxidation reaction.

The extension removing step may be removed through a dissolution process when the material of the extension is a material dissolved by an aqueous solution.

According to the manufacturing method of the flexible wire rod assembly according to the present invention as described above is composed of an outer coil wound in the coil form to produce a flexible wire rod assembly having elasticity while performing a heating function and / or current and signal conduction function Can be. In addition, since the coil assembly is first formed in the state where the internal wire is present inside the external wire, the internal wire is removed, thereby preventing the coil parts from being entangled or twisted with each other, so that the flexible wire rod assembly can be conveniently and quickly manufactured.

In addition, since the flexible wire rod assembly can be formed to have a thin thickness, it can be used as a material for artificial skin, and when a heater such as a heating pad is formed, a hollow part is formed inside the outer skin layer to improve heat retention and thermal efficiency, and cushion Function can be given to improve convenience in use.

Best Mode for Carrying Out the Invention Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, Figs. 1 to 7, and like reference numerals designate like elements in Figs. Meanwhile, the drawings and detailed descriptions of configurations, operations, and effects that can be easily understood by those skilled in the art from general technology in each drawing are briefly or omitted, and are illustrated based on parts related to the present invention.

1 is a process diagram for explaining a method for manufacturing a flexible wire rod assembly according to a first embodiment of the present invention, Figures 2a to 2d is a method for manufacturing a flexible wire rod assembly according to a first embodiment of the present invention It is a figure for demonstrating.

As shown in FIGS. 1 to 2D, the method for manufacturing the flexible wire rod assembly according to the first embodiment of the present invention provides a heating function and / or a current and signal conduction function while having elasticity by a wire rod having a coil shape. In order to manufacture a flexible wire rod assembly that can be performed, it includes an extension supply step (S1), coil winding step (S2), wire rod placement step (S3), and extension removal step (S4).

The extension supply step S1 is a step of advancing the extension a formed of a linear member having an outer diameter corresponding to the inner diameter of the coil to be manufactured, as shown in FIG. 2A, and the extension a progressing linearly ( Linear movement), but adjusts the movement speed according to the winding interval of the outer line (b) wound on the outer peripheral surface. That is, when the winding interval (external pitch) of the outer line b is to be wound tightly, the moving speed is lowered, and when the winding interval of the outer line is made wide, the moving speed is relatively fast.

The extension (a) is linearly moved at a predetermined movement speed while being unwound in a state of being rolled up on the extension feed roll (see the extension supply means 220 of FIG. 3 to be described later), and the extension is pulled to move in a tensioned state. For example, when the coil forming wire (c) formed during the implementation of the coil winding step (S2) is pulled by the towing means (see the towing means 210 of FIG. 3 described later), the coil forming wire (c) is At the same time as it is discharged, the central yarn inside is moved together in tension.

In addition, the internal line a has a wire diameter in micrometer (μm) units (at least 1 mm or less, that is, 999 μm or less) or in nanometer (nm) units (at least 1 μm or less, ie, 999 nm or less). It can be carried out by applying a variety of linear members such as natural fiber yarn, synthetic fiber yarn, polymer fiber yarn, pulp fiber yarn, metal yarn that can be produced.

In the coil winding step S2, as shown in FIG. 2A, the coil forming wire is formed by supplying and winding the inner line a that forms a coil on the outer circumferential surface of the inner line a that is carried out through the extension supply step S1. As a step of configuring), if the external line (b) can be supplied and wound to the moving station (a), it can be implemented in various ways.

In this embodiment, as shown in Fig. 2a, the outer line b is rolled around the inner line a to move the outer line supply roll. When the coil winding step (S2) is performed, as shown in FIG. 2B, a coil forming wire (c) having a form in which the outer line is wound on the outer circumferential surface of the inner line is obtained.

And, in the coil winding step (S2) it is generally carried out so that one strand of the outer line (b) is wound, but in some cases it can be carried out so that the outer line of a plurality of strands are wound. To this end, the outer line b may be implemented by arranging a plurality of outer line supply rolls wound around the inner line a.

Preferably, the outer wire (b) has at least one strand of an outer wire selected from among conductive wires having conductivity but low resistance and capable of energizing current and transmitting electric signals, and heating wires generated by a power source having high resistance, and the inner wire (a). Enforced to be wound up.

For example, the outer wire b may be a carbon nanotube, a metal yarn, a fiber yarn including a conductive material, an insulating coated metal yarn, gold (Au), silver (Ag), or copper (Cu) metal plated with any one. It can be carried out by applying a variety of linear members that can be produced in a line diameter of the micrometer unit or nanometer unit, such as yarn or fiber yarn.

On the other hand, the coil winding step (S2) may be configured by varying the winding direction of the outer line (b) wound on the inner line (a). For example, the coil forming wire rod having the winding direction of the outer wire wound differently by simultaneously performing the first coil winding step of winding the outer wire b in a clockwise direction and the second coil winding step of winding the outer wire in a counterclockwise direction ( c) can be obtained.

3 is a view schematically showing an example of an apparatus used in the method for manufacturing the flexible wire rod assembly according to the first embodiment of the present invention, wherein the extension supply step S1 and the coil winding step S2 are performed by such an apparatus. Can be implemented.

Referring to FIG. 3, the apparatus used in the method of manufacturing the flexible wire rod assembly includes an extension supply device 200 and an external winding device 300, and the extension supply device 200 includes the extension a at a predetermined moving speed. An apparatus for pulling and moving the extension (a) to proceed is provided with a traction means 210 and the extension supply means 220.

Pulling means 210 is installed on the discharge side of the inner line (a) pulley 211 is formed in the spiral winding so that the inner line is wound, and the pulley rotation to rotate the pulley 211 to pull the inner line (a) Means 212, by unwinding the extension (a) from the extension supply means 220 wound around the winding groove of the pulley 211, and then driving the pulley rotating means 212, the pulley 211 is rotated and the extension (a) is pulled and moved.

The internal supply unit 220 is configured to be released while maintaining the tension of the internal line a from the internal supply roll in which the internal wire a is wound in a roll form when a tensile force is applied from the traction means 210.

The outer wire winding device 300 is a device for forming a coil forming wire rod c by supplying an outer wire b to the outer circumferential surface of the inner wire a that is pulled by the inner feeder 200 to be wound in a spiral shape. The outer line of the outer wire wound roll 310 is installed on the rotating body 320 is configured to supply a coil around the inner line (a) while being rotated with the rotating body. In addition, the rotating body 320 is provided with a driving means (not shown) for performing the rotation operation.

Wire rod arrangement step (S3) is arranged or weave one or more strands of the coil forming wire (c) formed by the coil winding step (S2) in the desired shape coil assembly (d, hereinafter, one or more strands of coil forming wire (c) ) Is formed by arranging or weaving a bundle). The coil assembly is not limited in shape, but in this embodiment, as shown in FIG. 2C, the overall appearance is formed into a substantially planar body.

On the other hand, the wire rod arrangement step (S3) is carried out in the state that the internal line (a) is present in the interior of the outer line (b), so that the outer line (b) formed in the coil form in the arrangement process does not tangled or twisted with each other or the user or consumer Can be conveniently and quickly deployed in the form desired. That is, when the external wires (b) in the form of coils formed with a long length (hereinafter referred to as 'long length') without being formed as in the related art are woven together, the coils are stretched when the pulling force is applied, and the deformation in the pitch interval is increased. It is generated, spirally wound coil parts are entangled with each other, the arrangement of the external wire is very difficult and time-consuming, as well as the mass production of defective products.

The wire rod arrangement step (S3) may be configured in a manner of forming or weaving the coil forming wire (c) in a predetermined form (wherein, 'weave' means both braiding and weaving in the textile field). have.

In addition, the wire rod arrangement step may be performed by arranging or weaving only the coil forming wire (c), or by mixing or arranging the coil forming wire (c) and fiber yarn (not shown).

Removing the internal wire (S4) completes the flexible wire rod assembly (100a) by removing the internal wire (a) located in the inner center of the coil forming wire (c) forming the coil assembly (d) so that only the external wire (b) remains. As a step, as shown in Figure 2d to remove the inner line (a) located in the inner center of the coil forming wire (c) so that only the outer line (b) remains, the physical properties of the inner line (a) as the removal target According to the kind, etc. can be carried out in various ways as described below, in this case, the physical properties, type of the outer line (b) should also be considered.

The extension removal step (S4) is carried out when the extension (a) is formed of a material that is melted upon heating such as nylon yarn, polyurethane yarn, polymer fiber yarn, aramid yarn, or the like (commonly referred to as synthetic fiber yarn). Remove That is, the coil forming wire obtained in the coil winding step (S2) is heated by a heating apparatus or put into a heating furnace to be carried out in a manner of heating above the melting or vaporization temperature.

And, if the material of the inner (a) is formed of a material that can be incinerated, such as natural fiber, synthetic fiber, fiber using pulp, etc., it is removed through an incineration process, and if the material of the extension is formed of a photodegradable material, the photolysis process is performed. If the material of the internal material is dissolved by an aqueous solution such as fiber yarn using pulp, it is removed through the dissolution process.

On the other hand, if the material of the inner (a) is a metal yarn of a material decomposed by the oxidation reaction, such as aluminum, stainless, titanium, etc. are removed through oxidative decomposition. That is, when the internal wire is a metal yarn formed of a material such as aluminum, stainless steel or titanium, when the coil forming wire is immersed in a strong acid such as nitric acid, hydrochloric acid or sulfuric acid, the internal wire is removed through an oxidation reaction and only the external wire remains. In addition, when the external line is formed of metal yarn in the manner of removing the internal line through the oxidative decomposition, the manufacture of the flexible wire rod assembly may be impossible as the external line is also removed. In this case, the gold does not decompose the external line to the strong acid (Au). It may be formed by or by using a gold-coated outer wire may be manufactured in a way to configure the coil forming wire. In other words, since gold is decomposed to a strong acid such as nitric acid, hydrochloric acid, and sulfuric acid, and decomposed only in a solution mixed with hydrochloric acid and nitric acid (aka, aqua regia), a linear member including metal yarn as an extension and an external ray containing gold is decomposed. When formed with a flexible wire rod assembly can be obtained.

In addition, when the internal line is formed of polyvinyl chloride which decomposes in acetone, or formed of polystyrene which decomposes in thinner, ethylene, benzel or the like, it can be removed through a chemical reaction. That is, the wire rod for forming coils may be added to the solvent to prepare the stretchable wire rod assembly in such a manner that the internal wire is removed.

4 is a process chart for explaining a method for manufacturing a flexible wire rod assembly according to a second embodiment of the present invention, and FIG. 5 is a view for explaining a method for manufacturing a stretchable wire rod assembly according to a second embodiment of the present invention. Drawing.

4 to 5, the method for manufacturing the flexible wire rod assembly according to the second embodiment of the present invention includes: an extension supply step (S11) and an extension supply step (S11) for advancing the extension (a) formed of a linear member; In the coil winding step (S12), and coil winding step (S12) for supplying and winding the outer wire (b) to form a coil on the outer peripheral surface of the inner line (a) that proceeds through) to form a coil forming wire (c) Wire rod arrangement step (S13) to form a coil assembly (d) by arranging or weaving one or more coil-forming wires (c) formed in a desired form, and the internal extension located in the inner center of the coil-forming wires (c) ( An outer skin removing step (S14) to remove the a) so that only the outer wire (b) remains, while the outer skin layer forming step of forming an outer skin layer on the coil assembly (d) from which the inner wire is removed by the inner removing step (S14) ( S15) is further included, the elasticity by the wire rod having a coil shape Eumyeonseodo to produce a heat generating function and / or elastic wire bonded object (100b) that can perform the function of the energization current and a signal.

In the second embodiment of the present invention, the extension supply step S11, the coil winding step S12, the wire rod placement step S13, and the extension removal step S14 are the first described above as shown in Figs. 2A to 2D. In the same manner as in the embodiment, it will be implemented in a similar manner, so a detailed illustration or description thereof will be omitted.

The outer skin layer forming step (S15) is formed by forming the coil assembly (d) into a substantially planar body and forming a pad layer on the upper surface, the lower surface, or both upper and lower surfaces thereof. At this time, the pad layer may be attached to the pad prepared separately, in this embodiment, as shown in Figure 5 weave the fiber yarn to the upper and lower sides of the outer wire (b) forming the wire rod assembly (d) the outer skin layer 101 To form a fiber yarn layer in the form of a cloth.

Thus, the outer skin layer 101 is formed by being woven by fiber yarns, so that each fiber yarn has elasticity within a predetermined range (fiber yarns are formed by being woven together with warp yarns) and thus have elasticity within the predetermined range. It expands and contracts in time. At this time, the outer line (b) is formed in the form of a coil is stretched together with the outer skin layer (101).

And when the fiber yarn which forms a fiber yarn layer is comprised by the material which has elasticity like a span yarn, higher elongation can be obtained.

6A and 6B are views for explaining a modification of the method of manufacturing the flexible wire rod assembly according to the second embodiment of the present invention.

6A and 6B, the skin layer 102 formed by the skin layer forming step S15 may be formed of a resin layer by resin. For example, as illustrated in FIG. 6A, the coil assembly d may be formed in a lattice pattern, or as shown in FIG. 6B, the coil assembly d may be arranged in a zigzag form, and then a resin layer may be formed.

The flexible wire rod assembly 100c manufactured in this manner forms the hollow portion 103 due to the removal of the internal line as shown in the enlarged portions of FIGS. 6A and 6B. When the hollow part 103 constitutes a heating wire, the hollow part 103 serves as a chamber for storing the heat radiated from the outer wire. Therefore, when the flexible wire rod assembly is used as a heating pad for heating and insulation, heating is performed evenly and thermal efficiency is achieved. Can improve.

In addition, when the elastic wire rod assembly is to be formed of a thermal pad, the resin forming the resin layer is formed of a material having elasticity and thermal conductivity.

On the other hand, the above-mentioned elastic wire rod assembly (100c) can be used as artificial skin of the artificial robot because it can be circulated by putting a liquid similar to the blood in the hollow 103.

As described above, when the elastic wire rod assembly is to be composed of artificial skin, the outer skin layer 102 has a high elasticity property and excellent buffering effect, and the touch is close to the skin, such as an alpha gel, a silicone resin, and a polysilicon resin. It is formed by selecting any one of an ester, polyethylene terephthalate or a copolymer thereof.

In addition, when the elastic wire rod assembly is to be composed of artificial skin, the resin may be formed into a dry collagen film or regenerated collagen fibers by extruding collagen gel. Regenerated collagen fibers can be formed from components extracted from bovine epithelium. For example, it may be prepared by the method described in Korean Patent Application No. 10-2003-7006203, 'Method for producing and cleaning recycled collagen fibers'.

7 is a flowchart illustrating a method of manufacturing the flexible wire rod assembly according to the third embodiment of the present invention.

As shown in FIG. 7, in the method of manufacturing the flexible wire rod assembly according to the third embodiment of the present invention, the extension proceeds through an extension supply step (S21) and an extension supply step (S21) of advancing an extension formed of a linear member. Coil forming step (S22) and coil winding step (S22) formed by the coil winding step (S22), coil winding step (S22) to form a coil forming wire (c) by supplying and winding the outer wire (b) forming a coil on the outer peripheral surface of (a) Wire rod arrangement step (S23) to form a coil assembly (d) by arranging or weaving the wire (c) in the desired shape, the shell layer forming step (S24) for forming the shell layer on the coil assembly (d), and the skin layer forming step ( After the implementation of S24) includes an internal removal step (S25) to remove the internal line located in the inner center of the coil forming wire (c) so that the external line and the outer layer remain.

The manufacturing method of the flexible wire rod assembly according to the third embodiment of the present invention has similarities in that it includes an outer layer forming step as in the above-described second embodiment, but the extension removing step (S25) for removing the inner line forms the outer layer. The difference is different in that it is executed after the implementation of step S24.

To this end, the material or the material forming the outer skin layer is formed of a different material from the material of the extension so as not to be removed or damaged in the extension removal step (S25).

In other words, in the above-described first and second embodiments, only the material or material forming the outer line b is removed when the extension a is removed, as described in the extension removal step S4 of the first embodiment. However, in the third embodiment, since the inner line is removed while the outer layer is formed, the inner line can be removed and removed in advance in accordance with the desired material or material of the outer skin layer. It is preferable to select the material of the outer line.

For example, when the inner line a is removed by heating, when the material of the outer layer is formed of a specific resin that is melted at 400 ° C. or higher, the inner line a is melted at a temperature lower than 400 ° C. to adversely affect the outer layer. It should be formed of a linear member of the material to be removed without, the outer line (b) will be formed of a linear member of the material that is not affected when the inner line (a) is removed.

In addition, in the third embodiment of the present invention, the extension supply step S21, the coil winding step S22, and the wire rod placement step S23 are performed in the same manner as in the above-described first embodiment, and thus, are shown in a specific manner. I omit the description.

On the other hand, in the case of manufacturing the flexible wire rod assembly in the same manner as in the second and third embodiments described above may be configured by adding a separate filler to the hollow portion formed at the time of removal of the inner line (a).

The filler may be selected from liquid, gaseous, and solid materials that multiply their functions or complement their durability, depending on the purpose or purpose of the flexible wire rod assembly. For example, when the flexible wire rod assembly is composed of a heating pad, by injecting a liquid substance such as water or insulating oil, heat efficiency of the external heat heated by the supplied power source can be diffused and warmed, thereby improving thermal efficiency.

As described above, the manufacturing method of the flexible wire rod assembly according to the preferred embodiment of the present invention and the stretchable wire rod assembly manufactured by the method are shown in accordance with the above description and drawings, but this is merely described for example and the present invention. Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the invention.

1 is a process chart for explaining a method for manufacturing a flexible wire rod assembly according to a first embodiment of the present invention;

2a to 2d are views for explaining a method for manufacturing a flexible wire rod assembly according to a first embodiment of the present invention,

3 is a view schematically showing an example of an apparatus used in the method for manufacturing the flexible wire rod assembly according to the first embodiment of the present invention;

4 is a process chart for explaining a method for manufacturing a flexible wire rod assembly according to a second embodiment of the present invention;

5 is a view for explaining a method for manufacturing a flexible wire rod assembly according to a second embodiment of the present invention;

6a and 6b are views for explaining a modification of the manufacturing method of the flexible wire rod assembly according to the second embodiment of the present invention,

7 is a flowchart illustrating a method of manufacturing the flexible wire rod assembly according to the third embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

a: extension b: external

c: wire rod for coil formation d: coil assembly

S1, S11, S21: Extension supply step S2, S12, S22: External winding step

S3, S13, S23: Wire placement step S4, S14, S25: Extension removal step

S15, S24: outer skin layer forming step 100a, 100b, 100c: elastic wire rod assembly

101,102: outer layer 103: hollow

Claims (20)

An extension supply step of advancing the extension formed by the linear member; A coil winding step of forming a coil forming wire rod by supplying and winding an outer line forming a coil on an outer circumferential surface of the inner line which is performed through the inner line supplying step; A wire rod arrangement step of arranging or weaving one or more strands of the coil forming wire rod formed by the coil winding step in a desired form to form a coil assembly; And And removing the internal wire located at the inner center of the coil forming wire, thereby eliminating the internal wire so that only the external wire remains. An extension supply step of advancing the extension formed by the linear member; A coil winding step of forming a coil forming wire rod by supplying and winding an outer line forming a coil on an outer circumferential surface of the inner line which is performed through the inner line supplying step; A wire rod arrangement step of arranging or weaving one or more strands of the coil forming wire rod formed by the coil winding step in a desired form to form a coil assembly; An extension removal step of removing the extension located at the inner center of the coil forming wire so that only the external ray remains; And And an outer skin layer forming step of forming an outer skin layer on the coil assembly from which the inner wire is removed by the inner wire removing step. An extension supply step of advancing the extension formed by the linear member; A coil winding step of forming a coil forming wire rod by supplying and winding an outer line forming a coil on an outer circumferential surface of the inner line which is performed through the inner line supplying step; A wire rod arrangement step of arranging or weaving one or more strands of the coil forming wire rod formed by the coil winding step in a desired form to form a coil assembly; An outer skin layer forming step of forming an outer skin layer in the coil assembly; And And an inner line removing step of removing the inner line located at the inner center of the coil forming wire after the execution of the outer layer layer forming step so that the outer line and the outer layer remain. The method according to claim 2 or 3, The outer layer forming step is a method of manufacturing a flexible wire assembly, characterized in that to form a fiber yarn layer by weaving the fiber yarn to the coil forming wire. The method according to claim 2 or 3, The outer layer forming step is a method for producing a flexible wire rod assembly, characterized in that formed by a resin layer by a resin. The method according to any one of claims 1 to 3, The extension supply step is carried out by pulling the extension wound in the extension supply means to be released in a tensioned state to move linearly at a predetermined moving speed, The coil winding step is a method for manufacturing a flexible wire rod assembly, characterized in that performed by rotating the rotating body having the outer line around the inner line. The method of claim 6, The coil winding step, A first coil winding step of winding the outer line clockwise; And a second coil winding step of winding the outer line in a counterclockwise direction. The method of claim 6, The coil forming wire rod formed in the course of the coil winding step is drawn and discharged by the traction means characterized in that the manufacturing method of the flexible wire rod assembly. The method according to any one of claims 1 to 3, The extension is composed of any one of linear members made of carbon nanotubes, natural fiber yarns, synthetic fiber yarns, polymer fiber yarns, pulp island-like, and metal yarns, The outer line is a carbon nanotube, a metal yarn, a fiber yarn containing a conductive material, an insulating coated metal yarn, and a metal yarn or fiber yarn plated with any one of gold (Au), silver (Ag), and copper (Cu). Method for producing a flexible wire rod assembly, characterized in that consisting of any one of the linear member made of a linear member. The method according to any one of claims 1 to 3, The outer wire is conductive, but has a low resistance value, and conducts electric current and transfers an electric signal, and at least one strand of linear members selected from heating wires generated by a power source having a high resistance value is wound around the internal wire. Method for producing a flexible wire rod assembly. The method according to any one of claims 1 to 3, The wire rod arrangement step of producing a flexible wire assembly, characterized in that formed by further arranging or weaving the fiber yarn with the coil forming wire. The method according to any one of claims 1 to 3, Wherein the step of removing the extension, when the material of the extension is formed of a material that is melted or vaporized during heating, the method of manufacturing a flexible wire rod assembly, characterized in that the removal through the heating process. The method according to claim 2 or 3, The extension removing step, if the material of the extension is formed of a material that is melted at the time of heating is removed through a heating process, the extension is characterized in that the elastic is formed of a material that is melted at a temperature lower than the melting temperature of the shell layer Method for producing wire rod assembly. The method according to any one of claims 1 to 3, The removal of the extension, if the material of the extension is formed of a material that can be incinerated by the incineration process, characterized in that the manufacturing method of the flexible wire assembly. The method according to any one of claims 1 to 3, Wherein the extension removing step, if the material of the extension is formed of a photodegradable material, characterized in that to remove through a photolysis process. The method according to any one of claims 1 to 3, The extension removing step, if the material of the extension is a material that is decomposed by the oxidation reaction, characterized in that for removing the flexible wire rod assembly characterized in that the removal through oxidative decomposition. The method according to any one of claims 1 to 3, The extension removing step, if the material of the extension is a material that is dissolved by an aqueous solution, the method of manufacturing a flexible wire assembly, characterized in that the removal through the dissolution process. The flexible wire rod assembly prepared by any one of claims 1 to 3. The method of claim 18, The outer wire has a conductive value, but has a low resistance value, the flexible wire rod assembly comprising at least one strand selected from a conductive wire capable of conducting current and transmitting an electrical signal, and a heating wire generated by a power source having a high resistance value. In the stretchable wire rod assembly prepared by the method for producing the stretchable wire rod assembly according to claim 2 or 3, Elastic wire rod assembly, characterized in that it further comprises a filler that is put in and received in the hollow portion formed when the inner line is removed.

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