KR101545151B1 - Apparatus and Method of Manufacturing Carbon Coating Fiber - Google Patents

Abstract

An apparatus of manufacturing a carbon coated fiber yarn according to the present invention comprises: a supply unit for supplying a general fiber yarn; an impregnation tank for coating the general fiber yarn supplied from the supply unit with a carbon solution; a carbon coated fiber yarn withdrawal unit having a lower nozzle for primarily passing the carbon coated fiber yarn withdrawn from the impregnation tank through a nozzle hole while rotating in a first direction, and an upper nozzle positioned directly above the lower nozzle and secondarily passing the carbon coated fiber yarn withdrawn from the lower nozzle through a nozzle hole while rotating in a direction opposite to the first direction; a drying chamber for drying the withdrawn carbon coated fiber yarn; and a winding bobbin for winding the dried carbon coated fiber yarn.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a carbon-

The present invention relates to an apparatus and a method for manufacturing carbon coated yarn, and more particularly, to a carbon coated yarn manufacturing apparatus and method for dipping general fiber yarn into a carbon colloid solution to form a carbon coating layer on the surface thereof.

 Surface heating elements using carbon coated yarns as heating elements are widely used. Since the carbon fiber yarn has a very good far infrared ray emissivity, it can be heated by radiant heat, thereby improving the energy efficiency. Further, the carbon fiber yarn has the advantage of utilizing various useful effects of the far infrared ray.

The carbon-coated cloth is dipped in a small amount of carbon fiber on a plain fiber cloth. Carbon coating yarns are required to have a uniform thickness of the carbon layer to be coated. Uneven coating of the carbon layer causes a problem that the formation of the heating layer is not constant and the variation of the resistance is too wide to reduce the heat generating effect and increase the electric consumption.

Japanese Patent Application No. 10-0767781 discloses a manufacturing apparatus and a manufacturing method in which a process of uniformizing the coating thickness of the carbon layer is introduced.

Korea Patent No. 1206421, 1189413, 1171641, 0955356, 0942805, 0919033 0767781, 0725189, 0724766, 0724763, 0715361, 0534295 Published patent 2013-0018028 Registration Utility Model 0457918 Public utility model 2009-0006341

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus and a method for manufacturing a carbon-coated yarn in which the carbon coating thickness of the carbon-coated yarn can be made uniform as a whole.

Another object of the present invention is to provide an apparatus and a method for manufacturing a carbon-coated yarn excellent in thermal conductivity and having a constant electric resistance.

In order to achieve the above object, the carbon-coated yarn manufacturing apparatus of the present invention comprises a supply unit for supplying a general fiber yarn, a dipping tank for coating a general fiber yarn supplied from the supply unit with a carbon solution, And a carbon coating yarn drawn from the lower nozzle while being rotated in a direction opposite to the first direction and positioned in the upper right chamber of the lower nozzle, A drying chamber for drying the drawn carbon coated yarn, and a winding bobbin for winding the dried carbon coated yarn.

In the present invention, it is preferable that the inner diameter of the nozzle hole of the upper nozzle is smaller than the inner diameter of the nozzle hole of the lower nozzle. Here, the inner diameter of the nozzle hole of the lower nozzle may be 0.6 mm to 1.0 mm, and the inner diameter of the nozzle hole of the upper nozzle may be 0.5 mm to 0.9 mm. More preferably, the inner diameter of the nozzle hole of the lower nozzle is 0.9 mm and the inner diameter of the nozzle hole of the upper nozzle is 0.8 mm.

In the present invention, the lower nozzle and the upper nozzle are preferably rotated at the same speed by a single motor.

In the present invention, the carbon coated yarn withdrawing portion includes a housing having an upper plate and a lower plate, a motor fixed to the upper plate of the housing, a driving gear fixed to the rotating shaft of the motor and extending from the upper plate to the lower plate, A lower nozzle rotatably provided on a lower plate of the housing and having a first driven gear engaged with a first reduction gear on an outer circumferential surface thereof, A direction changing gear rotatably housed in the upper plate of the housing and meshed with the second reduction gear, and a second housing that is rotatably housed in the upper housing of the upper chamber of the lower nozzle, And an upper nozzle having a second driven gear meshed with the gear.

In the present invention, the lower nozzle is rotated in the same direction as the twisting direction of the normal fiber yarn, and the upper nozzle can be rotated in a direction opposite to the twisting direction of the normal fiber yarn. Also, in the present invention, the lower nozzle may be rotated in a direction opposite to the twisting direction of the normal fiber yarn, and the upper nozzle may be rotated in the same direction as the twisting direction of the normal fiber yarn.

The manufacturing method of one embodiment of the present invention is a carbon coated yarn manufacturing apparatus including a carbon coated yarn withdrawing portion uniformly controlling the thickness of the carbon coated yarn coated with the carbon solution in the impregnation tank, wherein the carbon coated yarn withdrawing portion is arranged on the same vertical line The lower nozzle of the carbon coated yarn outlet rotates in the same direction as the twist direction of the fiber yarn and the upper nozzle of the carbon coated yarn outlet is rotated in a direction opposite to the twist direction of the fiber yarn Thereby controlling the uniform coating thickness. In another embodiment of the present invention, the carbon coated yarn withdrawing portion is arranged on the same vertical line in the carbon coated yarn producing device including the carbon coated yarn withdrawing portion uniformly controlling the thickness of the carbon coated yarn coated with the carbon solution in the impregnation tank The lower nozzle of the carbon coating yarn discharge portion rotates in a direction opposite to the twisting direction of the fiber yarn and the upper nozzle of the carbon coating yarn discharge portion rotates in the same direction as the twist direction of the fiber yarn To control the uniform coating thickness.

As described above according to the embodiments of the present invention as described above, according to the constitution of the present invention, by reversing the rotation direction of the lower nozzle and the upper nozzle, the carbon solution is uniformly coated on the surface of the general fiber yarn, An effect of improving the surface adhesive force can be expected, so that the thermal conductivity is excellent and the electric resistance can be kept constant.

However, the effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned above can be clearly understood by those skilled in the art without departing from the spirit and scope of the present invention.

1 is a schematic view of an apparatus for producing carbon coated yarn according to the present invention.
2 is a top plan view of a preferred embodiment of the carbon coated yarn withdrawing portion 130 of FIG.
3 is a bottom plan view of a preferred embodiment of the carbon coated yarn exit 130 of FIG.
4 is a cross-sectional view taken along line AA of Fig.

For the embodiments of the invention disclosed herein, specific structural and functional descriptions are set forth for the purpose of describing an embodiment of the invention only, and it is to be understood that the embodiments of the invention may be practiced in various forms, The present invention should not be construed as limited to the embodiments described in Figs.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and are herein described in detail. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Similar reference numerals have been used for the components in describing each drawing.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having", etc., are intended to specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, But do not preclude the presence or addition of other features, numbers, steps, operations, elements, parts or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of an apparatus for producing carbon coated yarn according to the present invention. FIG.

1, an apparatus 110 for manufacturing a carbon coated yarn 10 includes a supply unit 110, a dipping tank 120, a carbon coated yarn discharging unit 130, a drying chamber 140, a winding bobbin 150 ).

The supply unit 110 unwinds the plain fiber yarn 1 twisted and twisted by a plurality of yarns from the wound supply bobbin and supplies the same to the impregnation tank 120 through a tension adjusting device such as a guide roller 112 with a predetermined tension. The general fiber yarn (1) can be used without limitation as a fiber yarn capable of maintaining high strength of the carbon-coated yarn, and examples thereof include natural fiber yarns such as cotton and hemp, synthetic fiber yarns such as nylon, polyester and polypropylene, rayon, Or a mineral fiber yarn such as a semi-synthetic fiber yarn, a glass fiber or a Vasartite fiber.

The impregnation tank 120 is constituted by a tank containing the carbon colloid solution 122 and the guide rollers 124 and 126 are installed in the tank to guide the fiber yarn 1 horizontally in the carbon colloid solution 122 Allow the carbon colloid solution to adsorb onto the outer surface of the pile. The guide roller 124 is located in the impregnation tank 120 vertically downward from the guide roller 112 to change the traveling direction of the fiber yarn from the vertical direction to the horizontal direction. The guide roller 126 is positioned in the impregnation tank 120 vertically below the carbon-coated yarn discharge unit 130 to switch the traveling direction of the fiber yarn from the horizontal direction to the vertical direction. A plurality of impellers for dispersing the carbon colloid solution may be installed in the impregnation tank 120, and a circulation pipe communicating with the tank and circulating the carbon solution may be installed on the outer side of the impregnation tank 120. A hydraulic motor is further provided on one side of the circulation pipe so that the carbon colloid solution 122 can circulate through the circulation pipe, and an air nozzle for spraying air and an air compressor for supplying air can be installed in the tank .

The carbon colloid solution 122 or the conductive solution contained in the impregnation tank 120 may be variously configured, and carbon having conductivity is essentially required. For the thermal conductivity, the carbon particle size is preferably 3 to 200 μm Ferrous metals such as gold, silver, copper and nickel are mixed in order to enhance the thermal conductivity, and the particle diameter of the non-ferrous metal is also required to be pulverized into 3 to 200 mu m like the carbon particle diameter. The adhesive resin should be mixed at a certain ratio so that the carbon-colloidal solution 122 can be penetrated and absorbed on the surface of the yarn, and silicone resin, polyurethane or the like is used as the adhesive resin. At this time, since the synthetic resin such as silicone polymer or polyurethane exhibits nonconductive property, it is preferable to mix conductive silver nitrate or silver nitrate-containing material in order to conduct electricity. In addition, additives such as ciloid, toluene, MEK, PC2000 and other special properties of the product (elasticity, nano, and flavor) can be added. The mixing ratio of carbon particles, non-ferrous metal particles and adhesive resin is preferably set to 3: 2: 5 in order to satisfy both the adhesiveness and the thermal conductivity, but the mixing ratio may be changed according to the resistance value of the required coating film have. For example, in one embodiment, a mixture of 8-12% carbon, 10-20% graphite, 30-50% urethane based adhesive, 8-16% methanol, 5-10% toluene organic solvent, and 5-10% (MEK) methyl ethyl ketone (MEK) organic solvent.

 The ordinary fiber yarn in the state in which the liquid carbon is adsorbed in the impregnation tank 120 is not uniform in the adsorption state and the amount contained therein is not accurate so that the heat generating characteristic is not uniform and the resistance value is variable. It becomes inadequate. Therefore, it is most important to keep the content accurately and to control the adsorption to be uniform.

The carbon coating yarn leading portion 130 is located above the impregnation tank 130 and passes the fiber yarn adsorbed on the surface of the carbon colloid solution through the nozzle hole to control the coating thickness of the surface to a predetermined thickness.

2 is a top plan view of the carbon coated yarn lead-out portion 130, FIG. 3 is a plan view of a lower layer, and FIG. 4 is a sectional view taken along line A-A of FIG.

 Referring to the drawing, the carbon coated yarn withdrawing portion 130 includes a housing 131, an upper nozzle 132, a motor shaft 133, a first reduction gear 134, a direction change gear 135, a lower nozzle 136 , A second reduction gear 137, and a motor (M).

The housing 131 includes an upper plate 131a and a lower plate 131b. A motor M and an upper nozzle 132 are installed on the upper plate 131a. And a lower nozzle 136 is provided on the lower plate 131b. The upper nozzle 132 is rotatably housed in the upper plate 131a and the lower nozzle 136 is rotatably housed in the lower plate 131b.

The upper nozzle 132 is formed in a pipe shape having a nozzle hole 132a at its center and a first driven gear 132b is integrally formed on the outer peripheral surface. The inlet 132c of the nozzle hole 132a has a tapered shape in which the inner diameter becomes narrower toward the upper side.

The lower nozzle 136 has a pipe shape in which a nozzle hole 136a is formed at the center and a second driven gear 136b is integrally formed on the outer peripheral surface. The inlet 136f of the nozzle hole 136a has a tapered shape in which the inner diameter becomes narrower toward the upper portion. Around the nozzle outlet of the lower nozzle 136 is surrounded by a protruding flange 136c, and a drainage accommodating space 136d is formed between the outlet and the protruding flange. The drainage drainage port 136e is formed at the bottom of the drainage storage space 136d and the drainage solution accumulated in the drainage storage space 136d is drained to the impregnation tank 120 located below.

The center line of the nozzle hole 132a of the upper nozzle 132 and the center line of the line hole 136a of the lower nozzle 136 are located on the same line. Accordingly, the upper nozzle 132 is positioned in the upper chamber of the lower nozzle 136. The droplet of the carbon colloid solution 122 falling from the inlet of the upper nozzle 132 is stored in the droplet accumulation accommodating space 136d of the lower nozzle 136 located at the lower side and then supplied to the impregnation tank 120 ).

The inner diameter of the nozzle hole 132a of the upper nozzle 132 is formed to be smaller than the inner diameter of the nozzle hole 136a of the lower nozzle 136. [ For example, when the inner diameter of the nozzle hole 136a is 0.9 mm, the inner diameter of the nozzle hole 132a is 0.8 mm.

The first driven gear 132b of the upper nozzle 132 is engaged with the turning gear 135 and the turning gear 135 is engaged with the first reduction gear 134. The first reduction gear 134 And is engaged with the driving gear 133. The driving gear 133 is coupled to the rotation shaft of the motor M. The driving gear 133 extends through the shaft hole of the upper plate 131a to the lower lower plate 131b. The driving gear 133 is engaged with the second reduction gear 137 on the lower plate 131b and the second reduction gear 137 is engaged with the second driven gear 136b of the lower nozzle 136. [

Therefore, when the rotational force of the motor M is transmitted to the driving gear 133, the driving gear 133 rotates in the direction of the arrow shown in the figure (clockwise direction). The first reduction gear 134 and the second reduction gear 137 engaged with the driving gear 133 rotate counterclockwise. The second driven gear 136b meshed with the second reduction gear 137 is rotated clockwise so that the lower nozzle 136 rotates clockwise. On the other hand, the first driven gear 132b, which receives the rotational force via the direction switching gear 135, is rotated counterclockwise to the first reduction gear 134, and the upper nozzle 132 rotates counterclockwise do.

Accordingly, while the upper nozzle 132 rotates in the counterclockwise direction, the lower nozzle 136 rotates in the clockwise direction and thus rotates in the opposite direction. The rotation speeds of the first and second reduction gears 134 and 137 are the same, so that the upper and lower nozzles 132 and 136 can maintain the same rotation speed. Here, the upper nozzle 132 and the lower nozzle 136 may rotate at different rotational speeds with different reduction ratios of the first reduction gear 134 and the second reduction gear 137.

The fiber yarn coated with the carbon colloid solution is controlled to have a first predetermined thickness by the lower nozzle 136 by the impregnation tank 120 and the coating thickness of the fiber yarn whose primary thickness is adjusted by the upper nozzle 132 is set to 2 The desired thickness can be controlled by the car.

In one method, the clockwise rotation of the lower nozzle 136 is rotated in a direction opposite to the direction of twisting in the process of twisting the normal fiber yarn 1, so that the twisted yarns are rotated in the unwinding direction. It can be adsorbed smoothly. The upper nozzle 132 rotates in the twist direction to restore the twist loose from the lower nozzle to the original twisted state, and the uniform thickness adjustment can be performed tightly. Therefore, the adsorption effect of the carbon solution can be effectively increased.

In the other method, when the clockwise rotation of the lower nozzle 136 is the same direction as the direction of twisting in the course of the ordinary fiber yarn 1, the yarn yarns are rotated in a more strongly twisted direction, So that it can be made uniform. However, it is preferable to control the uniform thickness, but there is a fear of cutting when the tensile strength of the fiber yarn is increased by tight twist. Also, since the coating direction is controlled in one rotation direction, a curvature can be formed along the rotation direction on the coating surface. Accordingly, the upper nozzle 132 rotates in the opposite direction of the twist, thereby reducing the tension caused by the lower nozzle 136 and removing the traces of the rotation direction of the coating surface, thereby enabling more uniform thickness control.

 The drying chamber 140 includes a horizontally extending drying space. And includes a guide roller 142 at the entrance and a guide roller 144 at the exit. The guide roller 142 guides the carbon coated yarn 10 drawn out from the carbon coating yarn leading portion 130 in the horizontal direction in the vertical direction by being positioned directly above the carbon coated yarn lead out portion 130, 144 guide the dried carbon-coated yarn 10 in the vertical direction from the horizontal direction.

In the drying chamber 140, the dry air is discharged from the hot air blower, the infrared ray is radiated from the hot air board, and the inside temperature of the dry space 146, which is blocked by the heat insulating material, is increased. In the carbon impregnation process, the coated carbon-coated yarn 10 is still in the fluidized state because the carbon solution 122 applied to the surface of the coated carbon-coated yarn 10 is still before drying, and the final determined amount of coating is changed through the nozzle 430 And there is a need to dry them early. Therefore, sufficient space for moving the carbon-coated yarn 10 to be dried while moving inside the drying space 146 must be secured. The internal temperature of the drying chamber may be differentiated in each step so that the carbon coated yarn 10 can be dried step by step while moving.

The drying temperature inside the drying space 146 can be adjusted generally within the range of 100 ° C to 150 ° C. In the manufacturing process of this embodiment, it is preferable to determine the moving speed at 3 m / min, but it is adjustable according to the drying condition of the carbon solution.

The winding bobbin 150 winds the carbon-coated yarn 10 dried at a predetermined winding speed through the guide roller 152 located below the outlet of the drying chamber 140. The winding speed determines the conveying speed of the carbon coated yarn. It is therefore desirable to set the speed to travel at a speed of approximately 5 to 12 m / min, but it may be faster or slower as needed.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

Claims (10)

A supply unit for supplying general fiber yarn;
An impregnation tank for coating a general fiber yarn supplied from the supply unit with a carbon solution;
A lower nozzle which is rotated in a first direction and through which a carbon-coated yarn drawn out from the impregnation tank passes first through a nozzle hole; and a lower nozzle which is positioned in an upper right chamber of the lower nozzle and rotates in a direction opposite to the first direction, A carbon-coated yarn withdrawing portion including an upper nozzle for secondarily passing the carbon-coated yarn drawn out from the nozzle through a nozzle hole;
A drying chamber for drying the drawn carbon coated yarn; And
And a winding bobbin for winding the dried carbon coated yarn,
The carbon coated yarn withdrawing portion
A housing having an upper plate and a lower plate;
A motor fixed to an upper plate of the housing;
A driving gear fixed to a rotating shaft of the motor and extending from the upper plate to the lower plate;
A first reduction gear rotatably housed in the lower plate of the housing and engaged with the drive gear;
A lower nozzle rotatably disposed on a lower plate of the housing and having a first driven gear engaged with the first reduction gear on an outer circumferential surface thereof;
A second reduction gear rotatably housed in the upper plate of the housing and engaged with the drive gear;
A direction switching gear rotatably provided on an upper plate of the housing and engaged with the second reduction gear; And
And an upper nozzle rotatably disposed on the housing upper plate in the upper portion of the lower nozzle and having a second driven gear meshed with the direction switching gear on an outer circumferential surface thereof. The apparatus of claim 1, wherein the inner diameter of the nozzle hole of the upper nozzle is smaller than the inner diameter of the nozzle hole of the lower nozzle. 3. The apparatus of claim 2, wherein the inner diameter of the nozzle hole of the lower nozzle is 0.6 mm to 1.0 mm and the inner diameter of the nozzle hole of the upper nozzle is 0.5 mm to 0.9 mm. 4. The apparatus of claim 3, wherein the inner diameter of the nozzle hole of the lower nozzle is 0.9 mm and the inner diameter of the nozzle hole of the upper nozzle is 0.8 mm. The apparatus of claim 1, wherein the lower nozzle and the upper nozzle are rotated at the same speed by a single motor. delete The carbon-coated yarn manufacturing apparatus according to claim 1, wherein the lower nozzle rotates in the same direction as the twisting direction of the normal fiber yarn, and the upper nozzle rotates in a direction opposite to the twisting direction of the normal fiber yarn. The carbon-coated yarn manufacturing apparatus according to claim 1, wherein the lower nozzle is rotated in a direction opposite to the twisting direction of the normal fiber yarn, and the upper nozzle is rotated in the same direction as the twisting direction of the normal fiber yarn. A method for manufacturing a carbon coated yarn manufacturing apparatus including a carbon coated yarn withdrawing portion uniformly controlling a thickness of a carbon coated yarn coated with a carbon solution in an impregnation tank,
The carbon-coated yarn withdrawing portion draws the carbon-coated yarn through the lower nozzle and the upper nozzle arranged on the same vertical line,
The lower nozzle of the carbon coating yarn withdrawing portion rotates in the same direction as the twisting direction of the fiber yarn, and the upper nozzle of the carbon coating yarn withdrawing portion rotates in a direction opposite to the twisting direction of the fiber yarn to control a uniform coating thickness. Gt; A method for manufacturing a carbon coated yarn manufacturing apparatus including a carbon coated yarn withdrawing portion uniformly controlling a thickness of a carbon coated yarn coated with a carbon solution in an impregnation tank,
The carbon-coated yarn withdrawing portion draws the carbon-coated yarn through the lower nozzle and the upper nozzle arranged on the same vertical line,
The lower nozzle of the carbon coating yarn withdrawing portion rotates in a direction opposite to the twisting direction of the fiber yarn and the upper nozzle of the carbon coating yarn withdrawing portion rotates in the same direction as the twisting direction of the fiber yarn to control the uniform coating thickness. Gt;

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