JP6791686B2 - Manufacturing method and equipment for spiral high-strength fiber composite wire, and manufacturing method for high-strength fiber composite cable - Google Patents

Description

The present invention relates to a method for manufacturing a spiral high-strength fiber composite wire, a method for manufacturing a high-strength fiber composite cable, and a high-strength fiber composite cable.

It has been proposed to impregnate continuously reinforcing fibers such as carbon fibers with a thermoplastic resin (Patent Document 1). In general, the cooling time for curing a thermoplastic resin is shorter than the heating time for curing a thermosetting resin, and the use of a thermoplastic resin can be expected to reduce costs by shortening the cycle time. it can.

Japanese Unexamined Patent Publication No. 2013-26171

Since the thermoplastic resin is deformed by applying heat, a fiber bundle impregnated with the thermoplastic resin and cured is prepared in advance, and then the fiber bundle (the thermoplastic resin impregnated in the fiber bundle) is heated. By doing so, the fiber bundle can be softened. By twisting a plurality of softened fiber bundles, it is possible to create a cable in which the fiber bundles impregnated with the thermoplastic resin are twisted together. However, since it is necessary to heat the fiber bundle twice, when the fiber bundle is impregnated and when the cable is made, the cost is high. In addition, when a cable is made by twisting a plurality of fiber bundles softened by heating to form a cable and then the thermoplastic resin is cured, the adjacent fiber bundles are strongly adhered to each other by the thermoplastic resin, so that the cable is flexible. Will be damaged.

It is an object of the present invention to manufacture a cable using a fiber bundle impregnated with a thermoplastic resin, which does not require two heatings and is therefore cheaper.

It is also an object of the present invention to provide a cable using a fiber bundle impregnated with a thermoplastic resin, which is highly flexible and therefore suitable for transportability and workability.

The present invention provides a method for manufacturing the above-mentioned lateral line (spiral high-strength fiber composite wire) of a cable in which a plurality of spiral lateral lines are arranged around a core wire. The core wire and side wire that make up the cable are common in that they are both manufactured of fiber reinforced plastic (Fiber Reinforced Plastics), but the lateral line is spirally typed, whereas the core wire is spirally typed. However, the two differ in their shape. High-strength fibers used for core and side lines include carbon fibers, glass fibers, boron fibers, aramid fibers, polyethylene fibers, PBO (polyp-phenylenebenzobisoxazole) fibers, and other fibers (synthetic fibers). These fibers are extremely fine, have high strength and low elongation, and exhibit high tensile strength equivalent to that of wire rope by bundling multiple high-strength fibers and impregnating them with a thermoplastic resin. As the thermoplastic resin, for example, polyamide, polycarbonate, polypropylene, polyetheretherketone, fluororesin and the like can be used.

In the method for producing a spiral high-strength fiber composite wire rod (method for producing a side wire) according to the first invention, a fiber bundle in which a plurality of high-strength fibers are bundled is supplied, and the thermoplastic is melted in the supplied fiber bundle. A fiber impregnated with a resin, the fiber bundle impregnated with the thermoplastic resin is supplied to a rotary die that is driven to rotate, drawn out from the eccentric outlet, and spirally shaped, and the fiber impregnated with the thermoplastic resin impregnated in a spiral shape. The bundle is cooled while maintaining the spiral molding to cure the thermoplastic resin.

According to the first invention, fibers are drawn by pulling out a fiber bundle impregnated with a thermoplastic resin from an eccentric outlet of a rotary die that is driven to rotate (an outlet formed at a position deviated from the center of rotation of the rotary die in the outer peripheral direction). The bundle is spirally shaped. By cooling the fiber bundle and curing the thermoplastic resin while maintaining the spiral molding, the spiral shape of the fiber bundle (high-strength fiber composite wire) impregnated with the thermoplastic resin is maintained thereafter.

As the lateral line, prepare a plurality of pre-molded spiral high-strength fiber composite wires manufactured by the above-mentioned manufacturing method. As the core wire, a high-strength fiber composite wire having the same diameter as the spiral inner diameter of the lateral line is prepared by bundling a plurality of high-strength fibers impregnated with the thermoplastic resin and cured with the upper thermoplastic resin. A high-strength fiber composite cable is manufactured by arranging the plurality of side wires around the core wire so that the plurality of side wires are twisted around the core wire. That is, instead of twisting multiple lateral lines around the core wire, the spiral shape when twisted is pre-typed into the lateral line, and the pre-typed lateral line is placed around the core wire to increase the height. Strong fiber composite cables are manufactured. Since it is not necessary to soften the lateral line in order to twist the lateral line around the core wire, that is, to heat the lateral line (thermoplastic resin), the manufacturing speed of the cable does not decrease due to the heating process, and the manufacturing cost is reduced. be able to.

Since the thermoplastic resin is cured in each of the core wire and the lateral line around it that make up the high-strength fiber composite cable, the core wire, the lateral line around it, and the adjacent lateral lines slip (position). Shift) is allowed. This provides a cable that is easy to handle and is prone to moderate bending when bent. For example, a long high-strength fiber composite cable can be wound around a small-diameter reel to make it compact and easy to handle at the work site. The high-strength fiber composite cable according to the present invention is suitable for use as a reinforcing material for, for example, electric wires (transmission lines), optical fiber cables, submarine cables and other relatively long members or equipment.

In one embodiment, the rotary die is provided with a flow path of a molten thermoplastic resin, and the fiber bundle passes through the flow path of the rotary die. As the fiber bundle passes through the flow path of the rotary die, the fiber bundle can be impregnated with the thermoplastic resin.

In another embodiment, a support rod around which a fiber bundle impregnated with the spirally molded thermoplastic resin is wound is detachably fixed to the center of rotation of the rotating die. The spiral shape of the fiber bundle can be maintained until it is pulled out from the eccentric outlet of the rotary die and cooled.

In the method for producing a spiral high-strength fiber composite wire rod according to the second invention, a commingle yarn in which a plurality of high-strength fibers and a plurality of thermoplastic resin fibers are bundled is supplied, and the commingle yarn is heated. The thermoplastic resin fiber is melted, and the molten combingle yarn is supplied to a rotary die that is driven to rotate, and is drawn out from the eccentric outlet to be spirally shaped and spirally shaped. Is cooled to cure the thermoplastic resin while maintaining the spiral molding. By heating a commingle yarn that bundles a plurality of high-strength fibers and a plurality of thermoplastic resin fibers, the thermoplastic resin fibers are melted, and the plurality of high-strength fibers are impregnated with the thermoplastic resin. The impregnation time can be shortened and the equipment can be simplified.

The high-strength fiber composite cable according to the present invention has a plurality of high-strength fibers impregnated with a thermoplastic resin, and a core wire in which these are bundled together and a plurality of wires impregnated with a thermoplastic resin, respectively. The above-mentioned thermoplastic resin is in a cured state, and each of the above-mentioned plurality of side wires is a cured state of the above-mentioned thermoplastic resin, each of which has a plurality of side wires in which these are bundled together. It is formed in a spiral shape with a spiral inner diameter along the diameter of the core wire by utilizing the property, and each of the plurality of molded side wires is twisted around the core wire. It is a feature. A high-strength fiber composite cable that is easy to handle and that causes moderate deflection is provided.

It is a front view of a carbon fiber cable. It is an exploded perspective view of a carbon fiber cable. It is sectional drawing of the carbon fiber cable along the line III-III of FIG. It is a perspective view of the lateral line manufacturing system. It is sectional drawing of the resin impregnation molding apparatus. It is a front view of a rotary head.

FIG. 1 shows the appearance of a carbon fiber cable. FIG. 2 is an exploded perspective view of the carbon fiber cable. FIG. 3 shows an enlarged cross-sectional view of the carbon fiber cable along the line III-III of FIG.

The carbon fiber cable 1 is composed of one core wire 2 and six side wires 3 (3a to 3f) twisted around the core wire 2 (1 × 7 structure). Seen from the cross section, the carbon fiber cable 1, the core wire 2, and the side wire 3 all have a substantially circular shape. Further, when viewed from the cross section, the core wire 2 is arranged at the center of the carbon fiber cable 1, and six side wires 3 are located so as to surround the core wire 2. The carbon fiber cable 1 has a diameter of, for example, about 5 mm to 20 mm.

The core wire 2 is obtained by impregnating a bundle of a large number of long carbon fibers 4 bundled with a circular cross section, for example, tens of thousands of long carbon fibers 4, with a thermoplastic resin (for example, polyamide) 5 and curing the bundle. The lateral line 3 is also obtained by impregnating a bundle of a large number of long carbon fibers 4 bundled with a circular cross section, for example, tens of thousands of long carbon fibers 4, with a thermoplastic resin 5 and curing the bundle. The entire carbon fiber cable 1 contains about several hundred thousand carbon fibers 4.

Each of the carbon fibers 4 is very fine, for example having a diameter of 5 μm to 7 μm. A core wire 2 and a lateral wire 3 may be formed by twisting a plurality of bundles of carbon fibers 4 together. It can be said that the core wire 2 and the side wire 3 are made of carbon fiber reinforced resin (CFRP) (Carbon Fiber Reinforced plastics).

The core wire 2 and the lateral line 3 have the same thickness (cross-sectional area) in this embodiment. However, the lateral line 3 which is thinner or thicker than the core wire 2 may be used. The thickness of each of the core wire 2 and the lateral line 3 can be arbitrarily adjusted depending on the number of carbon fibers 4.

As the core wire 2 and the side wire 3 constituting the carbon fiber cable 1, those obtained by pre-curing the thermoplastic resin 5 are used. That is, the carbon fiber cable 1 is made by arranging the side wires 3 in the same cured state of the thermoplastic resin 5 around the core wire 2 in the cured state of the thermoplastic resin 5 and making them twisted. Since the thermoplastic resins 5 of the core wire 2 and the side wire 3 are cured, appropriate slippage is allowed between the core wire 2 and the side wires 3 and 3 around the core wire 2.

The six lateral lines 3 that are twisted around the core wire 2 are all pre-shaped in a spiral shape, while the core wire 2 does not have a spiral shape. It goes without saying that the spiral shape of the lateral line 3 is molded before the thermoplastic resin 5 is cured. The spiral molding pitch of each lateral line 3 is substantially the same, and the spiral inner diameter of each lateral line 3 is substantially equal to the diameter of the core wire 2.

FIG. 4 shows a lateral line manufacturing system for manufacturing the spirally shaped lateral line 3 constituting the carbon fiber cable 1.

The lateral line manufacturing system is equipped with a resin impregnation molding device 10, a cooling device 50, and a winding device 60.

The resin impregnation molding device 10 includes an extrusion device 20 that melts and extrudes the thermoplastic resin 5, and a carbon fiber bundle 6 in which the molten thermoplastic resin 5 is impregnated into the carbon fiber bundle 6 and the thermoplastic resin 5 is impregnated. It is provided with a typing device 30 that spirally molds the resin, and a connecting device 40 that connects the extrusion device 20 and the molding device 30. An extrusion device 20 is provided on the side of the coupling device 40, and a molding device 30 is provided in front of the coupling device 40. These three devices, the extruder 20, the molding device 30, and the coupling device 40, are integrated to form the resin impregnation molding device 10.

The carbon fiber bundle impregnated with the thermoplastic resin 5 before curing is discharged from the molding device 30. The carbon fiber bundle is cooled in the cooling device 50, where the thermoplastic resin 5 is cured. When the thermoplastic resin 5 is cured, the spiral carbon fiber bundle is wound on the winding reel 64 in the winding device 60.

A reel (not shown) around which the carbon fiber bundle 6 (before impregnation with the thermoplastic resin 5) is wound is prepared. The carbon fiber bundle 6 fed from the feeding reel is given to the resin impregnation molding apparatus 10. The carbon fiber bundle 6 can be unwound by, for example, a winding device arranged on the downstream side. The carbon fiber bundle 6 may be a bundle in which a large number of carbon fibers are aligned in one direction or a bundle in which a large number of carbon fibers are twisted and bundled.

FIG. 5 shows a cross-sectional view of the resin impregnated molding apparatus 10 as viewed from a plane. FIG. 6 is a front view of the rotating head described later.

As described above, the resin impregnation molding apparatus 10 includes an extrusion apparatus 20, a molding apparatus 30, and a coupling apparatus 40.

The extruder 20 includes a housing in which a cylindrical screw space 22 is formed, and the screw 23 is rotatably provided in the screw space 22. A hopper 25 whose lower end opening is connected to the screw space 22 is provided on the upper surface of the housing. The solid thermoplastic resin pellets 26 charged into the hopper 25 are fed into the screw space 22 in appropriate amounts.

A cylindrical heater 24 is embedded in a housing around the screw space 22. The heater 24 is composed of, for example, a heat generating resistor that generates heat when energized. The heat from the heater 24 is transmitted to the screw space 22 through the housing, whereby the thermoplastic resin pellet 26 is melted while passing through the screw space 22. The molten thermoplastic resin 5 is pushed out of the screw space 22 by the rotation of the screw 23.

The molten thermoplastic resin 5 extruded from the extruder 20 flows into the flow path 42 of the thermoplastic resin 5 formed in the coupling device 40. In the flow path 42, the flow direction is rotated at right angles to the extrusion direction of the thermoplastic resin 5 by the extruder 20 (so-called crosshead die). The connecting device 40 provides a passage through which the carbon fiber bundle 6 passes and a passage 42 through which the thermoplastic resin 5 extruded from the extruder 20 flows. In addition, the coupling device 40 also functions as a support mechanism for rotatably supporting the rotary head described later included in the molding device 30.

A nozzle 41 having a passage hole 41c through which the carbon fiber bundle 6 passes is provided in the connecting device 40, and the carbon fiber bundle 6 is passed through the passage hole 41c of the nozzle 41. The nozzle 41 includes a tip portion 41a having a conical outer shape and an end portion 41b having a cylindrical outer shape, and the tip portion 41a faces the molding device 30. The carbon fiber bundle 6 unwound from the feeding reel enters the inside of the connecting device 40 through the opening of the connecting device 40, is passed through the passing hole 41c from the end portion 41b of the nozzle 41, and exits from the tip portion 41a of the nozzle 41. .. When passing through the passage hole 41c of the nozzle 41, the carbon fiber bundles 6 are aligned in a circular cross section.

Further, a space is secured around the nozzle 41 in the coupling device 40, and the space around the nozzle 41 serves as a flow path 42 through which the thermoplastic resin 5 flows in the coupling device 40.

The molding device 30 includes a rotating head 31 and a rotating die 34. The rotary head 31 includes an integrally formed large-diameter cylindrical portion 31a having the same central axis and a small-diameter cylindrical portion 31b. The small-diameter cylindrical portion 31b of the rotating head 31 is fitted into the internal space of the connecting device 40 from the front, and is rotatably supported by a rolling bearing 45 provided inside the connecting device 40.

The large-diameter gear 33 is fixed to the end portion (the end portion close to the connecting device 40) of the outer peripheral surface of the large-diameter cylindrical portion 31a of the rotary head 31. With reference to FIG. 4, the large-diameter gear 33 meshes with the small-diameter gear 37 whose rotating shaft is connected to the motor 39. When the motor 39 is rotationally driven, the small-diameter gear 37 rotates, and the large-diameter gear 33 meshed with the small-diameter gear 37 also rotates accordingly. The rotation of the large-diameter gear 33 causes the entire rotation head 31 to rotate.

The inside of the large-diameter cylindrical portion 31a and the inside of the small-diameter cylindrical portion 31b of the rotary head 31 are hollow. A rotating die 34 having a cylindrical outer shape with a heater 36 on the outer peripheral surface is tightly fitted and fixed inside the hollow of the large-diameter cylindrical portion 31a. Inside the hollow of the small-diameter cylindrical portion 31b, the nozzle 41 described above is arranged in a state where the flow path 42 of the thermoplastic resin 5 is secured around the nozzle 41.

The rotary die 34, which is fitted and fixed in the large-diameter cylindrical portion 31a of the rotary head 31, has a substantially conical hollow portion 34a in which the tip portion 41a of the nozzle 41 is located and a hollow portion 34a. A linear flow path (passage) 34b having a circular cross section is formed. A flow path through which the thermoplastic resin 5 passes is also secured in the conical hollow portion 34a of the rotating die 34 where the tip portion 41a of the nozzle 41 is located.

The linear flow path 34b formed inside the rotary die 34 extends diagonally. When the rotary die 34 is viewed from the front with reference to FIG. 6, the outlet of the linear flow path 34b is formed at a position (eccentric position) deviated from the rotation center of the rotary die 34.

An elongated support rod 35 protruding in the front direction of the rotating die 34 is screwed to the center of rotation on the front surface of the rotating die 34. The support rod 35 is detachably attached to the rotating die 34, and only the support rod 35 can be replaced. The support rod 35 preferably has the same diameter as the core wire 2 (see FIG. 3) constituting the carbon fiber cable 1 to be manufactured.

As described above, the carbon fiber bundle 6 passed through the nozzle 41 goes out from the tip portion 41a of the nozzle 41 located in the rotary die 34. The carbon fiber bundle 6 that has come out of the nozzle 41 goes out of the rotary die 34 through the linear flow path 34b in the rotary die 34. When passing through the linear flow path 34b, the carbon fiber bundle 6 is impregnated with the molten thermoplastic resin 5. The carbon fiber bundle 6 (so-called prepreg) impregnated with the thermoplastic resin 5 comes out from the outlet of the linear flow path 34b of the rotary die 34. Hereinafter, the carbon fiber bundle 6 impregnated with the thermoplastic resin 5 is referred to as a carbon fiber composite wire rod 7.

As described above, the rotary head 31 is rotatable. When the rotary head 31 rotates, the rotary die 34 fixed to the rotary head 31 also rotates accordingly. Since the outlet of the linear flow path 34b formed in the rotary die 34 is eccentrically formed, the carbon fiber composite wire 7 is given a spiral shape when going out from the rotary die 34.

The carbon fiber composite wire 7 that goes out from the outlet of the linear flow path 34b is sent out so as to be wound around a support rod 35 that protrudes from the front center of the rotary die 34.

The thermoplastic resin 5 of the carbon fiber composite wire 7 wound around the support rod 35 has not yet been cured. By being wrapped around the support rod 35, the spiral inner diameter of the carbon fiber composite wire 7 becomes approximately equal to the diameter of the support rod 35. As described above, since the support rod 35 is interchangeably attached to the rotary die 34, the spiral inner diameter of the carbon fiber composite wire 7 can be adjusted by using the support rods 35 having different diameters. The spiral pitch of the carbon fiber composite wire 7 can be adjusted by the winding speed of the carbon fiber composite wire 7 by a winding device described later.

With reference to FIG. 4, the carbon fiber composite wire 7 having the spiral shape proceeds to the cooling device 50. The cooling device 50 includes a bathtub 51 in which water 57 is stored, guide rolls 52 and 55 provided on the inlet side and outlet side of the bathtub 51, and guide rolls 53 and 54 provided in the bathtub 51. There is. The carbon fiber composite wire 7 that has passed through the inlet side guide roll 52 is cooled by being hung on the guide rolls 53 and 54 in the bathtub 51 and immersed in water, whereby the thermoplastic resin 5 is cured. The carbon fiber composite wire rod 7 obtained by curing the thermoplastic resin 5 proceeds to the next step via the outlet side guide roll 55. The thermoplastic resin 5 may be cured by air cooling instead of or in addition to water cooling.

The carbon fiber composite wire rod 7 on which the thermoplastic resin 5 is cured proceeds to the winding device 60. The take-up device 60 includes a reel 61 around which a support wire 62 arranged in the spiral of the carbon fiber composite wire 7 is wound, a roll 63 that rotates the traveling direction of the support wire 62 unwound from the reel 61, and a support. The winding reel 64 for winding the carbon fiber composite wire 7 wound around the wire 62 is provided. The reel 61 around which the support wire 62 is wound rotates (revolves) around the carbon fiber composite wire 7 and accommodates the support wire 62 in the spiral of the carbon fiber composite wire 7 formed in a spiral shape (support wire). The carbon fiber composite wire 7 is wound around the 62), and the spiral shape of the carbon fiber composite wire 7 can be maintained.

The carbon fiber composite wire 7 wound around the take-up reel 64 is used as the side wire 3 of the carbon fiber cable 1 described above. That is, six side wires 3 of the required length are cut out from the carbon fiber composite wire 7, and these are arranged around the core wire 2 to be in a twisted state, whereby the carbon shown in FIGS. 1 and 3 is formed. The fiber cable 1 is manufactured. Since the lateral line 3 is formed in a spiral shape in advance, it is not necessary to heat the lateral line 3 to melt (soften) the thermoplastic resin 5 impregnated in the lateral line 3.

As the core wire 2 and the side wire 3 constituting the carbon fiber cable 1, those obtained by pre-curing the thermoplastic resin 5 are used. That is, the core wire 2 and the six lateral lines 3 around it are not adhered to each other by the thermoplastic resin 5. The same applies to the lateral lines 3. Since slippage is allowed between the core wire 2 and the six sidings 3 around it, and between the adjacent sidings 3, the carbon fiber cable 1 has good flexibility and is easy to handle. Provided.

Since the core wire 2 constituting the carbon fiber cable 1 does not have a spiral shape, it is created by impregnating a long carbon fiber bundle having a circular cross section with the thermoplastic resin 5 and cooling the thermoplastic resin 5. can do.

A plurality of the above-mentioned lateral line manufacturing systems may be prepared, and a plurality of carbon fiber composite wire rods 7 (lateral wire 3) may be manufactured at the same time. When a plurality of carbon fiber composite wires 7 (side wires 3) are manufactured at the same time, instead of winding the carbon fiber composite wires 7 on the take-up reel 64, a plurality of carbon fiber composite wires 7 are manufactured by a plurality of side wire manufacturing systems. The steps of gathering the side wires 3 of the above and arranging them around the core wire 2 to manufacture the carbon fiber cable 1 may be continuously carried out in the manufacturing process of the side wires.

In the side line manufacturing system described above, the carbon fiber bundle 6 is supplied and the carbon fiber bundle 6 is impregnated with the molten thermoplastic resin 5, but a plurality of carbon fibers and a plurality of thermoplastic resin fibers are bundled in advance. When the commingle yarn is used, the above-mentioned thermoplastic resin extrusion step (flow path 42 in the extrusion device 20 and the coupling device 40) is not always required. For example, by heating the commingle yarn with a heater 36 provided on the outer peripheral surface of the rotary die 34, the thermoplastic resin fibers constituting the commingle yarn can be melted, and the carbon fiber bundle can be impregnated with the thermoplastic resin. A spiral shape is given to the commingle yarn as it exits through the eccentric outlet of the rotationally driven rotary die 34.

1 Carbon fiber cable 2 Core wire 3,3a, 3b, 3c, 3d, 3e, 3f Side wire 4 Carbon fiber 5 Thermoplastic resin 6 Carbon fiber bundle 7 Carbon fiber composite wire
10 Resin impregnation molding equipment
20 Extruder
22 Screw space
23 screw
24, 36 heaters
30 typed device
31 rotating head
33 Large diameter gear
34 rotating die
34b Channel
35 Support rod
37 Small diameter gear
39 motor
40 Coupling device
42 Channel
50 Cooling device
60 Winder

Claims (5)

Supplying a fiber bundle in which multiple high-strength fibers are bundled,
The fiber is provided by providing a flow path that linearly connects the rotation center inlet and the eccentric outlet, and a molten thermoplastic resin is supplied to the flow path of the rotary die that is rotationally driven around the rotation center. The bundle is impregnated with molten thermoplastic resin and
Typing the fiber bundle the thermoplastic resin is impregnated, the drawer from the eccentric outlet of the rotary die, spirally wound around a support rod which is fixed to the outlet side center of the rotary dies,
The fiber bundle impregnated with the spirally molded thermoplastic resin is cooled while maintaining the spirally molded to cure the thermoplastic resin.
A method for manufacturing a spiral high-strength fiber composite wire rod. We supply a commingle yarn that bundles multiple high-strength fibers and multiple thermoplastic resin fibers.
By providing a flow path that linearly connects the heater and the inlet of the center of rotation and the outlet of the eccentric, and heating the commingle yarn by passing the commingle yarn through the flow path of the rotary die that is rotationally driven around the center of rotation. Melt the thermoplastic resin fiber and
The commingle yarn in which the thermoplastic resin fiber is melted is pulled out from the eccentric outlet of the rotary die, wound around a support rod fixed to the center of the outlet side of the rotary die, and spirally molded.
The spirally shaped commingle yarn is cooled while maintaining the spirally shaped to cure the thermoplastic resin.
A method for manufacturing a spiral high-strength fiber composite wire rod. As the lateral line, a plurality of spiral high-strength fiber composite wires manufactured by the manufacturing method according to claim 1 or 2 are prepared.
As the core wire, a high-strength fiber composite wire having the same diameter as the spiral inner diameter of the lateral line was prepared by bundling a plurality of high-strength fibers impregnated with the thermoplastic resin and cured by the thermoplastic resin.
Arrange the plurality of lateral lines around the core wire so that the plurality of lateral lines are twisted around the core wire.
Manufacturing method of high-strength fiber composite cable. A reel that supplies a bundle of fibers in which multiple high-strength fibers are bundled.
Means for melting thermoplastic resin pellets and supplying the molten thermoplastic resin,
A flow path that linearly connects the inlet and eccentric outlet of the center of rotation is provided, and the flow path of the rotary die includes a rotary die that is rotationally driven around the center of rotation, and the fiber bundle that passes through the flow path of the rotary die. The supplied molten thermoplastic resin is impregnated, and the fiber bundle impregnated with the thermoplastic resin is pulled out from the eccentric outlet of the rotating die and wound around a support rod fixed to the center of the outlet side of the rotating die in a spiral shape. Typed equipment and typing
It is equipped with a cooling device that cures the thermoplastic resin by cooling the fiber bundle impregnated with the spirally molded thermoplastic resin while maintaining the spiral molding.
Equipment for manufacturing spiral high-strength fiber composite wire rods. A reel that supplies a commingle yarn that bundles multiple high-strength fibers and multiple thermoplastic resin fibers.
The above is provided by providing a flow path that linearly connects the heater and the inlet of the center of rotation and the outlet of the eccentric, including a rotary die that is rotationally driven around the center of rotation, and by heating the commingle yarn that passes through the flow path of the rotary die. A mold in which the thermoplastic resin fiber is melted, the commingle yarn in which the thermoplastic resin fiber is melted is pulled out from the eccentric outlet of the rotary die, wound around a support rod fixed to the center of the outlet side of the rotary die, and spirally molded. Attached equipment, and
It is equipped with a cooling device that cures the thermoplastic resin by cooling the spirally shaped commingle yarn while maintaining the spirally shaped shape.
Equipment for manufacturing spiral high-strength fiber composite wire rods.

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