KR20000009087A - Spinner for preparing two-component glass fiber - Google Patents

Abstract

PURPOSE: A spinner for mass-producing two-component glass fiber with a different chemical component by melting and spinning two kinds of fused glass through one orifice simultaneously is provided which can increase the amount of production and produce a product having a uniform physical property. CONSTITUTION: In a spinner for producing two-component glass fiber where an outer wall(5) and inner wall(6) are placed at regular intervals on the deck plate(4) formed a rotating shaft(12) in the center, a separating plate(8) and upside separating plate(17) are placed radially between them, air vents(11) communicating with the lower part of the separating plate(8) are formed on the inner wall, several guide slots(9) are formed at same intervals on the inside of outer wall(5), many orifices(10) are formed to communicate with the slots(9), the inner wall(6) is arranged to make an angle of theta degree(theta is smaller than 45 degrees and larger than 90 degrees) with the deck plate, the upside separating plate(17) takes curved shape at a prescribed curvature to spin two kinds of fused glass in one filament. This is an improved invention of Korean patent application No. 96-52273.

Description

Spinner for Making Two-Component Glass Fibers

The present invention is to produce a glass fiber by spinning the molten glass, two kinds of molten glass having different chemical composition at the same time by fusion and spinning through one orifice (two orifices) The present invention relates to a spinner for producing a two-component glass fiber that enables mass production, and is an improvement of Patent Application No. 96-52273 proposed by the present applicant.

In general, the aggregate that collects single-fiber glass fibers composed of a single component is mainly used as a thermal insulation material because of its excellent thermal insulation effect, sound absorption and durability without being burned well. Due to the overlapping and overlapping structure, the sharp ends of the short fibers protrude irregularly to the surface, causing a sensation of touch due to surface contact during handling, and temporary itching as the short fibers on the surface of the aggregate are detached and transferred to workers' clothes. In addition, phenolic resin, which is a binder used to form a plate-like aggregate by stacking short fibers, has a problem of causing environmental pollution.

In order to solve this problem, the present invention is directed to sprinkling two kinds of molten glass having different thermal expansion coefficients into one strand of fiber at the same time. By having a curved shape or irregularly twisted shape, it is possible to form a certain shape by using the properties tangled between the fibers without using a separate binder at the time of collection.

1 is a cross-sectional view showing a state of use of the present invention,

2 is a longitudinal cross-sectional view of the present invention;

3 is a partially exploded view showing the outer wall of the present invention,

4 is a partially developed view showing the inner wall of the present invention,

5 is a partial perspective view of the present invention,

6 is an enlarged cross-sectional view of the glass fiber according to the present invention.

Explanation of symbols on the main parts of the drawings

1: melting furnace, 2a, 2b: molten glass,

3a, 3b: supply pipe, 4: bottom plate,

5: outer wall, 6: inner wall,

7: spinner, 8: separator,

9: home, 10: orifice,

11: through hole, 12: rotating shaft,

13: burner, 14: high pressure air injector,

15: glass fiber, 16: feeder,

17: Upper separator.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a state of use of the present invention, the two molten glass (2a, 2b) of the different components melt-fed from the separate melting furnace (1) through the supply pipe (3a, 3b), respectively, the spinner ( When the spinner 7 is supplied to the molten glass 7, the molten glass supplied to the spinner 7 is rotated at high speed by a separate power source driving the rotary shaft 12 while the spinner 7 is heated to a constant temperature by the burner 13. 2a, 2b) flows outward by the centrifugal force and is radiated to the glass fiber 15, and the continuous glass fiber 15 is bent downwardly by the high-pressure air spraying device 14 installed on the outer edge and stretched and cooled. While falling to the conveying device 16 is shown to be transferred to the post-work process.

FIG. 2 is a longitudinal sectional view of the present invention, in which two molten glasses 2a and 2b of different components supplied through supply pipes 3a and 3b are formed between the inner wall 6 and the outer wall 5 of the spinner 7, respectively. It is supplied directly to the bottom plate (4) through the space between the separation plate (8) which is radially installed in the upper plate and connected to the upper separation plate (17) or inner wall (6) and the rotating shaft (12), One side of the molten glass (2b) is guided to the bottom of the separation plate 8 through the through hole 11 formed in the inner wall (6) to the outer wall (5) side and the other side of the molten glass (2a) is the upper separation plate (17) And falling into the space between the separation plates 8 and transferred to the outer wall 5 side, so that both molten glass 2a and 2b are joined to the separation plate 8 in the guide groove 9 with respect to each orifice 10. It is shown to be emitted through a strand of glass fiber 15 through.

3 is a partially exploded view showing the outer wall of the present invention, through the outer wall 5 at a position where the centers of the plurality of guide grooves 9 and the separating plate 8 intersect at equal intervals on the inner surface of the spinner 7. It is shown that the orifice 10 is formed.

4 is a partially exploded view showing the inner wall of the present invention, in which the through hole 11 is formed in the inner wall 6 of the spinner 7 in communication with the bottom space formed by the separating plate 8 and the upper separating plate 17. It is shown. At this time, the upper separator 17 has a predetermined curvature on the upper surface, so that the glass melt 2b dropped on the upper separator 17 flows into the two side spaces better. 'Has a shape.

FIG. 5 is a perspective view of a part of the present invention, which shows that the separating plate 8 and the upper separating plate 17 are formed between the inner wall 6 and the outer wall 5 of the spinner 7. In order to prevent the molten glass dropped between the rotating shafts 12 by centrifugal force and then moved upward along the inner wall 6 to merge with the molten glass of different composition, the inner wall 6 is attached to the bottom plate of the spinner 7. It shows that formed with an angle of θ ° (45 ° <θ <90 °) with respect to.

Figure 6 shows a cross-sectional view of the glass fiber according to the present invention, showing that the molten glass (2a, 2b) of the two components are formed into a hemispherical shape formed into a glass fiber 15 of one strand.

In the present invention as described above, since the molten glass 2a and 2b have a significant centrifugal force according to the strong rotational force of the spinner 7, the plurality of strands of glass fiber 15 are radially strongly radiated through the orifice 10, At this time, the high-pressure air spraying device 14 installed at the side bends the glass fiber 15 downward while simultaneously injecting high pressure air, and at the same time, stretches and cools the two-component glass fiber thus manufactured. The difference in thermal expansion coefficient due to cooling between 2b) causes shrinkage deviation so that the glass fiber 15 has a magnetic crimping property such as being bent in a tortuous state or bent in a spring shape, and then molded into a certain shape by picking it up. In this case, it is possible to easily mold by entanglement between fibers without using a binder. In addition, this crimping property softens the touch even upon contact with the surface during handling.

On the other hand, the inner wall 6 of the spinner 7 has an angle of θ ° (45 ° <θ <90 °) because the molten glass 2b dropped between the rotating shaft 12 and the inner wall 6 by centrifugal force. This is to exclude the possibility that the molten glass 2b may move upward along the inner wall 6 to be mixed with the other molten glass 2a when moving toward the outer wall 5, and the upper surface of the upper separating plate 17 may be removed. ' The shape is to prevent the molten glass 2b supplied to the upper portion from falling down the upper separator 17 and mixing with the molten glass 2a supplied between the rotating shaft 12 and the inner wall 6. .

As described above, the molten glass of the two components having different components are spun into one strand, so that they have a self crimping property due to mutual shrinkage variation during cooling, so that the molding to a certain form without using a binder is easy. Of course, it provides a great effect, such as increasing the radiation amount per unit time by centrifugal force, and unlike other double glass fiber manufacturing spinners, the structure is simple and minimizes the possibility of mixing in the spinner between the two molten glass It can produce products of uniform physical properties.

Claims (3)

The outer wall 5 and the inner wall 6 are installed at a predetermined interval on the bottom plate 4 formed around the rotating shaft, and the separation plate 8 and the upper separation plate 17 are radially installed therebetween, and the inner wall ( 6 is formed in the through hole 11 in communication with the lower portion of the separating plate 8, the plurality of orifices penetrating so as to communicate with the plurality of guide grooves 9 are formed at equal intervals in the inner edge of the outer wall (5) ( 10) spinner for producing a two-component glass fiber formed. The spinner according to claim 1, wherein the inner wall (6) is arranged at an angle of θ ° (45 ° <θ <90 °) with the bottom plate (4). The method according to claim 1, wherein the upper separator 17 is curved with a predetermined curvature ' Spinner for manufacturing two-component glass fibers formed into shapes.