KR20120082503A - A device for coating fiber with carbon solution for making heat-radiating yarn - Google Patents

Abstract

PURPOSE: A carbon coating apparatus for grey yarn is provided to maximize spatial utilization and to improve production rate. CONSTITUTION: A carbon coating apparatus for grey yarns comprises: a grey yarn supply unit(10) for supplying the grey yarns(12) unwound from a bobbin(11); a carbon solution dipping bath(20) for coating the grey yarns with carbon; a chamber for drying the grey yarns; a circulation roller(32) for recirculating the grey yarn to the carbon solution dipping bath; 10-20 drying rollers(33) for drying the coated grey yarns in the chamber; a drying chamber(30) which is integrally formed by a circulation duct(34) which supplies heated air; and rolling unit(40) having a rolling bobbin(41) and rolling motor.

Description

A device for coating fiber with carbon solution for making heat-radiating yarn

The present invention relates to an apparatus for coating a yarn with a carbon stock solution for the production of a heating yarn, and relates to a carbon coating apparatus of a yarn that can efficiently and economically produce a carbon coated fiber used as a heating yarn.

Fibers (coupling, hereinafter referred to as 'carbon coated fibers') prepared by coating carbon on the fibers may be used as heat generating yarns because they generate resistance when electricity is applied. The heating fabric woven by using the carbon coated fiber as a heating yarn can easily raise the temperature to a desired temperature in a short time due to the high electrical resistance characteristic of the heating yarn, and unlike the conventional electric mat, no electromagnetic wave is generated, and a certain temperature When it reaches, it has a constant temperature characteristic that the temperature does not increase any more, so it can minimize the use of power and there is no risk of getting burned.

These carbon-coated fibers are also very thermally efficient and generate healthy far-infrared rays on their own, and can be used for heating by radiant heat, so heating sheets, heating mats, heating wall accessories, heat sheets, heating wires, mountaineering or health clothing, bedding, etc. Since it can be used as a material of the interest is particularly increasing as a new material that can replace the conventional electric mat or heating apparatus.

As a method for manufacturing such carbon coated fibers, the existing methods do not have a uniform coating in coating carbon on the fibers, so that the current value is unstable and only AC current is used without using DC current to have a desired stable resistance value. There was a problem.

As a method for solving this problem, the Republic of Korea Patent No. 054322 provides a rotation means for passing the left yarn or right yarn to the left or right when passing through the impregnation tank containing the carbon coating solution and discharged from the impregnation tank In the process of the yarn passing through the hollow of the finishing member to have a suitable coating layer thickness and uniformity to propose a uniform coating of the carbon yarn. However, the method described here is inconvenient to adjust the rotating means by checking the case of the right and the left yarn, and the trimming occurs when the speed of the yarn rotating means and the winding motor is not balanced with each other. have. In addition, the apparatus described herein has a problem in that the process of impregnation-finishing member-drying must be separately performed three times each, and a separate aging process takes a long time to manufacture the carbon-coated fibers and requires a lot of space for the apparatus. .

In addition, the Republic of Korea Patent No. 0942805 divides the coating process and the drying process, the coating is first carried out three times at a low temperature (about 65 ℃), and then moving the yarn to the drying chamber and then separately at a high temperature (200 ~ 300 ℃) A method of improving the uniformity of the carbon coating by drying and finishing using a guide jig in the form of a spoon instead of the finishing member has been proposed. However, the method described here requires three coating chambers, which makes the device excessively large and complex, and also has a long tunnel-type drying chamber, which takes too much time to pass through, from the yarn supply to the final winding. The problem is that the length is so long that too much space is required for the device. In addition, the drying temperature in the drying chamber is too high, there is a problem that the yarn may be poor and consume a lot of power, and because the device is long, the chain drive on the top of the coating chamber to move the yarn by the drive motor If the device is excessively complex and large, and the speed of the drive motor (RPM) and the speed of the take-up motor is not balanced, there was a problem that a quality defect occurs or trimming occurs.

Accordingly, the present invention is to improve the problems of the conventional carbon stock coating device as described above.

Therefore, the present invention can implement a compact manufacturing apparatus capable of a carbon coating process even in a narrow place, there is no problem of poor quality or trimming, and do not have to maintain a high temperature during drying to provide a carbon coating apparatus that can reduce power consumption For that purpose.

The present invention to achieve the above object

(1) a yarn supply unit for supplying yarn loosened from the yarn bobbin;

(2) a carbon stock solution impregnation tank for carbon coating the yarn supplied from the yarn supply unit;

(3) a chamber for drying the yarn by receiving the carbon impregnated yarn in the carbon stock impregnation tank, a circulation roller for recycling the carbon coated yarn in the carbon stock impregnation tank, and the circulated carbon coated yarn in the chamber An integrated drying chamber comprising 10 to 20 drying rollers for drying in a circulation duct and connected to an upper or lower portion of the chamber to supply heated air to maintain a constant temperature in the chamber; And

(4) a winding section consisting of a winding bobbin and a winding motor for winding a coated yarn supplied from the integrated drying chamber;

It provides a carbon coating device of a yarn comprising a.

Carbon stock solution coating yarn of the present invention has the following advantages.

(1) First, a compact device is possible. The apparatus described in Korean Patent Registration No. 054322 or Korean Patent Registration No. 0942805, which is an existing method, has a space required for installing the entire apparatus because the coating process is separated into three processes and the drying process is also elongated in the horizontal direction. There were problems of hundreds of meters. However, the present invention uses only one roller for coating and one or more rollers that move long in the vertical direction rather than the horizontal direction, and at the same time can be coated and dried in one integrated chamber Significantly reduced space for installation. Therefore, the device according to the present invention can be installed by only a few meters, so when using the same space as the previous device can be installed several or dozens of devices can maximize the space efficiency.

(2) Moreover, there is no need to use the finishing member or the guide jig used in the conventional method. The device according to the invention itself does not require a separate jig or finishing device, as the coating of the carbon stock is sufficient.

(3) Moreover, since the whole apparatus is short, the yarn can be fully moved only by the driving force of the winding motor, and there is no need for a separate drive motor or chain for yarn movement.

(4) In addition, since drying occurs sufficiently even if the temperature of the drying chamber is maintained at 80 to 120 ° C., it should be maintained at 200 ° C. or higher in the conventional method to drastically reduce power consumption and maintain physical properties of the yarn as compared to drying. have.

1 is a view showing a carbon stock solution coating apparatus described in the Republic of Korea Patent No. 054322 of the existing method.
2 is a view showing a carbon stock solution coating apparatus described in the Republic of Korea Patent No. 0942805, which is an existing method.
3 shows an integrated coating apparatus according to the present invention.
4 is a view showing an example of a circulating roller and a yarn guide roller in a carbon stock impregnation tank according to the present invention.

The present invention will be described in detail as follows.

Carbon coating device of the yarn of the present invention

(A) yarn supply unit 10 for supplying the yarn 12 released from the yarn bobbin (11);

(b) a carbon stock solution impregnation tank 20 for carbon coating the yarn 12 supplied from the yarn supply unit 10;

(c) a chamber 31 for drying the yarn by receiving the carbon impregnated yarn from the carbon stock impregnation tank 20, and recycling the carbon coated yarn in the chamber 31 to the carbon stock impregnation tank 20. Circulating roller 32, 10 to 20 drying rollers 33 for drying the circulated carbon coated yarn in the chamber, and connected to the upper or lower portion of the chamber so that the temperature inside the chamber is kept constant. Integrated drying chamber 30 consisting of a circulation duct (34, 35) for supplying; And

(d) a winding unit 40 comprising a winding bobbin 41 and a winding motor 42 for winding the coated yarn supplied from the integrated drying chamber 30.

In the present invention, the yarn supplied from the yarn bobbin can be used without limitation as the fiber used as a general carbon coated fiber, for example, natural fibers such as cotton or hemp, synthetic fibers such as nylon, polyester, polypropylene, rayon, acetate Regenerated fibers, semisynthetic fibers, etc. may be used.

In the present invention, the yarn may be guided to one or more feed rollers 13, and a rotary reel or a Y-shaped guide may be used as necessary. The yarn is naturally supplied by the driving force generated in the winding motor 42 without a separate drive motor.

In the present invention, the impregnation tank 21 for supplying the carbon stock solution to the yarn may include a carbon stock solution that is commonly used in the present invention. For example, solid fillers such as carbon powder and graphite powder include conductive fillers such as magnesium oxide, zirconium carbide, silicon carbide, coupling agents, far-infrared radiation substances and dispersants, antifoaming agents, additives such as antioxidants, and solvents such as xylene. A carbon stock solution may be used, and the present invention is not particularly limited as long as it is a carbon stock composition capable of imparting sufficient resistance to be used for exothermic yarns.

In the apparatus according to the present invention, when the stock solution is insufficient in the impregnation tank, the stock solution is automatically supplied to the impregnation tank by the stock solution supply device (not shown) operated by the sensor, thereby maintaining a constant level.

In the present invention, the yarn impregnated with carbon through the impregnation tank may directly enter the drying chamber without the need for a separate finishing member or jig. At this time, there is one integrated circulation roller in the drying chamber, and the circulation roller guides the carbon-coated raw yarn back to the carbon stock impregnation tank. In order to induce the carbon stock again in this way, at least three or more times, preferably three to five times of impregnation are performed because only one impregnation is sufficient to ensure sufficient and uniform resistance. In the present invention, since the circulation roller is one-piece, it is important that the yarns do not overlap each other in order to carry out the yarn three or more times. At this time, although the yarns with different impregnation times may be set to rotate the circulation rollers at appropriate intervals, it is also possible to use the circulation rollers with the projections 36 to ensure that these yarns do not overlap. It is also possible to fix one central axis and attach three to five rollers to the central axis so that the yarn is guided through each roller. 4 illustrates an example of a circulation roller having such protrusions, but not limited thereto, and various applications are possible, such as having a strip-shaped protrusion and a protrusion configured to be bent as a whole. In addition, the central axis is fixed and the shape guided by each roller can be designed to be guided to the carbon stock impregnation tank after the yarn is guided out of the chamber, all of which should be interpreted as falling within the scope of the present invention.

The yarn guided through the circulation roller 32 goes back upright and is introduced into the carbon stock impregnation tank to impregnate carbon again. Thus, the circulation roller and the impregnation roller 22 of the impregnation tank are three or more times, preferably. Cycles 3 to 5 times. In this case, the finishing of some surfaces may occur in the process of circulating the circulating roller.

Yarn circulated between the circulation roller and the impregnation roller and sufficiently impregnated with the carbon stock is then dried. In the present invention, the drying uses an integrated chamber including a circulation process for the impregnation without using a separate drying chamber. The drying roller of the integrated chamber is characterized in that it runs long in the vertical direction. In the prior art, since a separate drying chamber was used and drying was also performed horizontally in the drying chamber, the space occupied by the drying chamber was elongated in a tunnel type, and there was a very big problem.

In the present invention, this problem is solved by allowing the drying of the yarn in the drying chamber to proceed in the vertical direction. In addition, it is preferable to install at least 10 rollers, more preferably 10 to 20, so that drying can proceed sufficiently. If it exceeds 20, it is not suitable because only space is increased while drying is already sufficiently performed.

In addition, the integrated drying chamber 30 is connected to the circulation duct to blow the heating air. Preferably, the heating air is provided with an inlet 34 at the rear side of the integrated drying chamber to supply the heated air, and a discharge port 35 is provided at the front side of the integrated drying chamber to connect the heated air for drying efficiency. The scope of the present invention is not necessarily limited thereto, and the position of the circulation duct may be freely modified as necessary.

In the present invention, the circulation duct is preferably supplied with heating air so that the internal temperature of the integrated drying chamber is maintained at about 80 ~ 120 ℃. If the temperature is too low, the drying efficiency is lowered, and if the temperature exceeds 120 ° C., the drying efficiency is good, but the yarn circulating in the circulating roller suddenly comes into contact with high heat, which is not preferable because the uniformity may be reduced and power consumption is increased.

In the prior art, most of the drying chamber temperature is set to 200 ° C. or more to increase the drying efficiency of the coating yarn. As a result, the power consumption is high, the yarn is exposed to high heat, the physical properties are poor, and there is a problem in that a separate aging time must be placed before winding out of the chamber, thereby increasing the overall manufacturing process time. In the present invention, such a problem is to set the temperature of the integrated drying chamber to a relatively low temperature so that it can be cooled by natural cooling without a separate aging time.

In the present invention, there is no device other than the circulation roller and the drying roller in the integrated drying chamber 30. That is, there is no chain drive or separate drive motor as in the prior art. Such a separate motor is not necessary because the entire length from the carbon stock coating to the winding is very short, and thus, the driving force of the winding motor can sufficiently move the yarn as a whole.

In the present invention, the feed speed of the yarn is preferably set to a speed to feed at a speed of 5 ~ 12m / min, but can be faster or slower as needed.

In the present invention, the carbon coated yarn from the integrated drying chamber is wound on the winding bobbin 41 after being cooled by natural cooling. The winding motor 42 which drives a winding bobbin is located under the winding bobbin 41. It is preferable that such a winding motor uses a clutch motor whose driving speed varies depending on the diameter of the fiber bundle wound around the winding bobbin. When the clutch motor is used as described above, even if the diameter of the fiber bundle wound on the winding bobbin is changed, the speed at which the yarn is moved can be kept constant, thereby securing the uniformity of resistance of the carbon coated fiber.

The device according to the present invention is characterized by maximizing space utilization by compactly configuring the device as described above. The carbon coated fiber manufacturing apparatus in the prior art has been very inefficient spatially because the carbon stock coating, which is carried out several times, is carried out in separate chambers each, and the drying chamber is very long. The present invention can improve the production problems by implementing a compact device to improve the conventional problems can be installed in the same area occupied by one conventional device because several to dozens can be installed. In addition, since only one drive motor is used and the temperature inside the drying chamber can be much lower than in the prior art, it can be said to be very advantageous in terms of power consumption.

In the above, the present invention has been described in detail with reference to the drawings and the structure and features of the device, the present invention can be variously modified and changed by those skilled in the art and such modifications and variations should be construed as belonging to the protection scope of the present invention. something to do.

10: Yarn Supply Unit 11: Yarn Bobbin
12: Yarn 13: Yarn Feed Roller
20: carbon stock impregnation tank 21: carbon stock
22: yarn guide roller 30: integral drying chamber
31: review chamber 32: circulation roller
33: drying roller 34: circulation duct
35: circulation duct 36: protrusion
40: winding part 41: winding bobbin
42: winding roller

Claims (6)

(a) a yarn supply unit for supplying yarn loosened from the yarn bobbin;
(b) a carbon stock solution impregnation tank for carbon coating the yarn supplied from the yarn supply unit;
(c) a chamber for drying the yarn by receiving the carbon impregnated yarn in the carbon stock impregnation tank, a circulation roller for recycling the carbon coated yarn in the carbon stock impregnation tank, and the circulated carbon coated yarn in the chamber An integrated drying chamber comprising 10 to 20 drying rollers for drying in a circulation duct and connected to an upper or lower portion of the chamber to supply heated air to maintain a constant temperature in the chamber; And
(d) a winding unit comprising a winding bobbin and a winding motor for winding the coated yarn supplied from the integrated drying chamber;
Carbon coating device of the yarn comprising a.
The carbon coating apparatus of claim 1, wherein the circulation roller of (c) is integrally installed to circulate the yarn in the carbon stock solution 3 to 5 times.
The method of claim 1, wherein the drying chamber is not provided with a separate drive motor or chain for yarn movement, the carbon coating device of the yarn, characterized in that the supply and movement of the yarn is made only by the driving force of the winding motor.
The carbon coating apparatus of claim 1, wherein the circulation duct of (c) is connected so that the heating air is supplied to the second half of the integrated drying chamber and the outlet of the first half is provided.
The carbon coating apparatus of claim 1, wherein the circulation duct of (c) supplies heated air to maintain the internal temperature of the integrated drying chamber at 80 to 120 ° C.
 The carbon coating apparatus of claim 1, wherein the winding motor of the winding unit of (d) is a clutch motor.

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