KR101982275B1 - Impregnating apparatus of close type - Google Patents

Abstract

The present invention relates to a close type impregnation device for a carbon fiber drawing and molding machine, which comprises: a block main body having an inner transfer space unit in order to impregnate a plurality of continuously supplied carbon fibers with an impregnation liquid; and an injection unit for spraying and supplying the impregnation liquid toward the carbon fibers transferred in the transfer space unit of the block body. The impregnation liquid is injected and infiltrated through a nozzle, and thus the production speed can be greatly improved. Depending on the position of the nozzle, an impregnation liquid injection point can be specified or the amount of injection can be adjusted to obtain a desired cured product.

Description

[0001] IMPLANTING APPARATUS OF CLOSE TYPE [0002]

The present invention relates to a closed type impregnation device for a carbon fiber drawfiller, which is capable of impregnating a large amount of carbon fibers in a short period of time by injecting an impregnating solution supplied from outside into a closed conveying space part in a block, Device.

As a technique for impregnating the drawing object with the impregnation liquid composed of an adhesive and a curing agent during drawing and drawing,

Korean Patent Laid-Open Publication No. 1997-0020388 (published on May 28, 1997, hereinafter referred to as Document 1) discloses a method for manufacturing a continuous fiber-reinforced thermoplastic resin and an apparatus for performing the same.

Reference 1 discloses an apparatus for producing a thermoplastic resin having continuous fibers including an extruder for extruding a molten thermoplastic resin, a draw-impregnation die for impregnating the continuous fiber with the thermoplastic resin, and a winding device for pulling the continuous reinforcing fiber, Wherein the drawing and impregnating die comprises a fiber inlet for injecting continuous fibers, an array for arranging the continuous fibers in parallel, at least two rotating rollers comprising a body with a plurality of guide pins and a body, Reinforced thermoplastic resin comprising an outlet for discharging reinforced continuous fibers and an apparatus for carrying out the same.

As another technology, Korean Patent Registration No. 10-1360177 (Registered on February 03, 2013, hereinafter referred to as Document 2), "Drawing-forming apparatus and method of incombustible fiber-reinforced plastic"

Document 2 has a stiffener supply portion to which a stiffener is supplied; A resin impregnation unit for impregnating a plurality of reinforcing materials supplied from the reinforcing material supply unit with an aqueous resin solution in which water-soluble resin and flame retardant are dissolved in water; A dryer for applying heat to the fiber-reinforced plastic in the preplug state supplied from the resin impregnation unit to dry the moisture contained in the fiber-reinforced plastic; A molding part formed of a fiber reinforced plastic having a predetermined shape and size by applying heat and pressure while passing the fiber reinforced plastic passed through the dryer; And a movable linearly moving unit that is horizontally reciprocally movable along a pulling direction at one side of the forming unit and moves horizontally while applying heat and pressure to the fiber reinforced plastic that has passed through the forming unit, By including a press machine, a drawable molding apparatus and method of incombustible fiber-reinforced plastic capable of continuously producing a water-soluble resin together with an additive by diluting it with water and mixing a reinforcing material such as a flame retardant fiber or a flame retardant wire .

[0004] The documents 1 and 2 impregnate the impregnated object with the impregnation solution stored in the tank in the form of a poultice. Such an impregnation method is difficult to control the amount of impregnated resin, consumes a large amount of initial material, The resin can not be infiltrated into the resin, and the resin can be impregnated only on the surface. Therefore, there is a problem that the fiber conveying speed must be lowered so as to secure the impregnation time in order to solve the problem.

Korean Patent Application Publication No. 1997-0020388 (published May 28, 1997) Document 2. Korean Patent Registration No. 10-1360177 (Registered on March 23, 2014)

In the present invention, the impregnating liquid is injected toward the carbon fibers conveyed into the closed conveying space, and the impregnating liquid mixing and supplying means is separately placed outside and mixed at a certain ratio in the mixing and supplying means to produce various proportions Type impregnating apparatus for a carbon fiber draw-mill, which is capable of generating and supplying an impregnation liquid.

Further, the present invention provides a closed type impregnating apparatus for a carbon fiber drawing machine, which is capable of producing excellent products by improving the permeability of impregnation liquid into the fibers while being hermetically sealed by peeling off from the tank-type impregnating structure exposed to the outside, There is a purpose.

According to an aspect of the present invention, there is provided a closed type impregnating apparatus for a carbon fiber drawing machine,

In order to impregnate a plurality of continuously supplied carbon fibers with an impregnation liquid,

A block body having an internal transfer space; And

An injection unit for spraying and supplying an impregnation liquid toward the carbon fibers conveyed in the conveyance space of the block body;

.

In the closed type impregnating apparatus for a carbon fiber drawing machine according to the present invention,

By injecting the impregnation liquid through the nozzle, it is possible to achieve a production speed of about four times or more as compared with the open type impregnation structure.

In addition, according to the position of the nozzle, the injection point of the impregnation solution can be designated or the amount of injection can be controlled, thereby obtaining a desired cured product.

In addition, although the open type impregnation structure is difficult to replace the impregnation solution or to clean it, the closed type impregnation device of the present invention is capable of selectively infiltrating the impregnated liquid through a separate injection device, .

1 is an exploded perspective view showing a closed type impregnating apparatus for a carbon fiber drawing machine according to the present invention,
Fig. 2 is an assembled three-dimensional configuration diagram of Fig. 1,
3 is an exploded perspective view showing the bottom and top blocks of the block body and the respective nozzles,
4 is a plan view showing the bottom block and each nozzle of the block body,
5 is an overall view of a drawing-forming machine to which an impregnating device is applied.

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

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

1, the direction of the top block side is referred to as the upper or upper side, the bottom block side is referred to as the lower or down direction, and the first space portion side of the conveyed space portion is referred to as the left or right side, The right direction or the right direction.

1 to 5, a closed type impregnating apparatus for a carbon fiber drawing machine according to the present invention comprises:

In order to impregnate a plurality of continuously supplied carbon fibers 1 with an impregnating liquid,

And comprises a block body (10) and an injection unit (20).

Looking at each configuration,

The block body 10

As shown in Figs. 1 to 4,

The internal transfer space (11)

Shaped structure including a rectangular box shape.

Here, the block body 10 is

A bottom block 10A formed on the upper surface of the transfer space 11 so as to be recessed downward along the longitudinal direction,

A top block 10B disposed above the bottom block 10A to cover and seal the transfer space 11,

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At this time, the bottom and top blocks 10A and 10B may be detachably coupled to each other by bolts or the like, and a gasket may be provided on the contact surfaces of the bottom and top blocks 10A and 10B to prevent leakage of the infiltrating liquid.

As a result, the transfer space part 11 is formed to be recessed downward on the upper surface of the bottom block 10A and has a structure that is opened to the right and left, that is, a structure having an inlet on the left side and an outlet on the right side,

4, the transfer space part 11 is divided into a left first space part 111 and a right second space part 112 which are connected to each other. Particularly, the second space part 112 is divided into left- (Left 廣 right 협), which gradually decreases in cross-sectional area.

Therefore, after the first space portion 111 of the transfer space portion 11 is wider than the second space portion 112 and the first space portion 111 of the wide space is first impregnated, So that final impregnation is performed in the second space portion 112.

1, the supply amount of the impregnation liquid supplied into the transfer space portion 11 of the bottom block 10A is visually confirmed or overflowed in the top block 10B of the block body 10 An overflow check hole 12 is formed,

The overflow check hole 12 is vertically passed through the top block 10B and is formed so as to be disposed on the second space 112 side of the transfer space part 11. [

The injection unit 20 includes

As shown in Figs. 1 to 4,

For spraying the impregnating liquid toward the carbon fibers (1) transported in the transfer space (11) of the block body (10)

A pair of first nozzles 21 disposed at the bottom of the first space 111 of the transfer space 11 so as to be spaced forward and backward and having a plurality of spray holes H facing each other,

And a pair of discharge holes H disposed on the bottom of the first space portion 111 of the transfer space portion 11 and spaced apart from each other in the forward and rearward directions and disposed on the right side of the first nozzle 21 and facing each other The second nozzle 22,

A pair of side nozzles 23 having a plurality of injection holes H directed toward the second space 112 side of the transfer space 11 and spaced horizontally from the lower surface of the top block 10B, , And

Mixing supply means 24 for supplying impregnation liquid to the nozzles 21, 22 and 23,

.

3, the injection unit 20 has a structure in which some of the carbon fibers 1 of the plurality of carbon fibers 1 are connected to the pair of first nozzles 21 and the pair of second nozzles 22 Further comprising guide rollers (25) arranged in the first spatial part (111) of the transfer space part (11) for guiding to be transported in contact with the injection hole (H)

Four guide rollers 25 are provided on the right and left sides of each of the pair of first nozzles 21 and four are provided on the left and right sides of each of the pair of second nozzles 22, 8 is provided. However, this is an example, and it is an example of the present invention. The carbon fiber 1 is conveyed within a range satisfying the condition for guiding the transported carbon fibers 1 to contact the first nozzle 21 and the spray hole H side of the second nozzle 22 It is obvious that the quantity can be changed.

In addition, the guide rollers 25 may have a non-rotating cylindrical structure or an idle type rotary roller structure.

Therefore, when the carbon fiber 1 enters the inlet space of the first space 111 of the transfer space 11, the carbon fiber 1 contacts the outside of the guide roller 25 located at the first left side, And contacted with the outside of the third guide roller 25 and thereafter in contact with the inside of the fourth guide roller 25, and then transported in a zigzag manner.

4, the space between the pair of first nozzles 21 and the pair of second nozzles 22 in the first space 111 of the transfer space 11 are spaced apart from each other, A space through which the carbon fibers 1 can be conveyed is also formed therebetween.

4, each of the pair of first nozzles 21 and the pair of second nozzles 22 has an arc-shaped oblique surface portion C convexly opposed to each other when viewed from above, Is formed,

The injection holes H are radially arranged in the recessed face portion C so that the respective injection holes H corresponding to the arcuate shape of the recessed face portion C have a radial spray direction .

4, the angle A between the pair of first nozzles 21 and the pair of second nozzles 22 is an acute angle of about 5 to 10 degrees, 11 are arranged in such a shape as to open their mouths toward the inlet side of the first space portion 111 of the main body 11.

As shown in FIG. 3, the pair of the plurality of the secondary nozzles 23 are arranged in a row in the left-right direction, and a downwardly convex arcuate surface C is formed when viewed from the front,

The spray nozzles H are arranged in the radial direction in the recessed portion C of the third nozzle 23 so that the injection holes H corresponding to the arc- (H) has a radial spraying direction.

Further, each of the plurality of the secondary nozzles 23 is disposed on the lower surface of the top block 10B so as to be hidden, and the bottom surface C is exposed downward. As a result, the crenellated portion C of each of the plurality of the plurality of the plurality of the plurality of nozzles 23 is disposed toward the second space 112 of the transfer space 11.

1 and 2, the mixing and supplying unit 24 may be a mixer

A separate tank or the like, and a curing agent are mixed at a predetermined ratio and then supplied to the nozzles 21, 22, and 23, respectively.

The impregnating liquid is prepared by mixing an epoxy, which is one of the strong adhesives, and diethylenetriamine (DETA), which is a hardening agent, in an appropriate ratio. This mixing ratio is controlled by external control in the mixing and supplying means 24 It can be implemented to be adjusted.

In addition, an injection hole 241 is formed in the top block 10B so as to communicate with the nozzles 21, 22 and 23, and the injection hole 241 and the impregnation solution outlet of the mixing and supplying means 24 There is provided an injection tube 242 which interconnects.

Meanwhile, a closed type impregnating apparatus for a carbon fiber drawing machine according to the present invention is installed on an upper surface of a table 100 which can be fixed or moved,

A first guide plate 200 is provided on the table 100 on the left side of the block body 10. The first guide plate 200 is a supply unit such as a winding roller, And has a square plate structure in which a plurality of holes for individually feeding the carbon fibers 1 supplied from the plurality of holes are formed.

In the table 100, a stand-up type second guide plate 300 is installed between the first guide plate 200 and the block body 10. The second guide plate 300 includes a first guide plate 300, The plate 200 has a square plate structure in which a plurality of holes are formed so that the carbon fibers 1 individually transported by the plates 200 are combined into four groups.

The first bundled carbon fiber is transported in contact with one of the nozzles 21 of the pair of first nozzles 21 while the second bundled carbon fiber is transported in contact with the other one of the nozzles 21, The third bundled carbon fiber is transported to the space between the first nozzles 21 and the fourth bundled carbon fiber is transported while being in contact with the third nozzle 23. [

The bundled carbon fibers thus conveyed are impregnated by the impregnation liquid, and are bundled together in the second space part 112 and transported to the heating die 400.

The heating die 400 is installed on the right side of the block body 10 in the table 100 and arranges a plurality of heating rods on the inner path through which the impregnated bundled carbon fibers are transported, .

The operation of the closed type impregnating apparatus for a carbon fiber drawing machine according to the present invention having the above-

Referring to Figure 5,

A plurality of carbon fibers 1 supplied from a supply unit are separately transported through a plurality of holes formed in the first guide plate 200,

And then transferred in a predetermined number of bundles through holes formed in the second guide plate 300,

The carbon fibers 1 drawn into the inlet space of the first space portion 111 in the conveying space portion 11 of the block body 10 are separated and conveyed while being divided into upper and lower portions,

At this time, the impregnation solution in which the adhesive and the mixed agent are mixed in the mixing supply means 24 is injected into the injection hole 241 through the injection pipe 242,

The injected impregnation liquid is injected through each of the nozzles 21, 22 and 23 and impregnated into the carbon fibers 1. [

The impregnated carbon fibers 1 are bundled together while passing through the second space 112 of the transporting space part 11 and are transported to the heating die 400 and heated and dried to be drawn and formed.

While the present invention has been described with reference to the accompanying drawings, a closed type impregnating apparatus for a carbon fiber drawing machine having a specific shape and structure has been described. However, the present invention can be variously modified and changed by those skilled in the art, Such variations and modifications are to be construed as falling within the scope of protection of the present invention.

1: carbon fiber
10: Block body
10A: Bottom block
10B: Top block
11:
111: first space portion
112: second space part
12: Overflow check hole
20: Injection unit
21: First Nozzle
22: Second nozzle
23: Third nozzle
24: Mixing supply means
241: injection hole
242: Injection tube
25: guide roller
H: injection hole
C:
A: angle of incidence
100: Table
200: first guide plate
300: second guide plate
400: Heating die

Claims (8)

In order to impregnate a plurality of continuously supplied carbon fibers 1 with an impregnating liquid,
A block body (10) having an internal transfer space (11); And
An injection unit 20 for spraying and supplying the impregnation liquid toward the carbon fibers 1 transferred in the transfer space 11 of the block body 10;
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The block body 10 includes a bottom block 10A formed on an upper surface of the transfer space 11 so as to be downwardly recessed along the longitudinal direction of the block and a transfer chamber 11A disposed above the bottom block 10A, And a top block 10B which covers and hermetically closes the top block 10B,
The transfer space portion 11 of the bottom block 10A is divided into a left first space portion 111 and a right second space portion 112 which are connected to each other and the second space portion 112 is divided from left to right The cross-sectional area gradually becomes smaller,
The injection unit 20 includes a pair of first nozzles 21 disposed at the bottom of the first space part 111 of the transfer space part 11 and spaced apart from each other and having a plurality of spray holes H facing each other And a plurality of spray holes H arranged in the front of the first space part 111 of the transfer space part 11 so as to be spaced apart from each other in the forward and rearward directions and disposed on the right side of the first nozzle 21, A pair of second nozzles 22 and a plurality of jet holes H directed toward the second space portion 112 side of the transfer space portion 11 and spaced left and right from the bottom surface of the top block 10B And a mixing supply means (24) for supplying the impregnating liquid to the nozzles (21, 22, 23)
The injecting unit 20 is configured such that the carbon fibers 1 of the plurality of carbon fibers 1 are connected to the respective injection holes H of the pair of first nozzles 21 and the pair of second nozzles 22, Further comprising guide rollers (25) arranged in the first spatial part (111) of the transfer space part (11)
Each of the pair of first nozzles 21 and the pair of second nozzles 22 is formed with an arc-shaped oblique surface C which is convex in the direction facing each other,
And the spray hole (H) is radially arranged on the bottom surface (C).
delete delete delete delete delete In order to impregnate a plurality of continuously supplied carbon fibers 1 with an impregnating liquid,
A block body (10) having an internal transfer space (11); And
An injection unit 20 for spraying and supplying the impregnation liquid toward the carbon fibers 1 transferred in the transfer space 11 of the block body 10;
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The block body 10 includes a bottom block 10A formed on an upper surface of the transfer space 11 so as to be downwardly recessed along the longitudinal direction of the block and a transfer chamber 11A disposed above the bottom block 10A, And a top block 10B which covers and hermetically closes the top block 10B,
The transfer space portion 11 of the bottom block 10A is divided into a left first space portion 111 and a right second space portion 112 which are connected to each other and the second space portion 112 is divided from left to right The cross-sectional area gradually becomes smaller,
The injection unit 20 includes a pair of first nozzles 21 disposed at the bottom of the first space part 111 of the transfer space part 11 and spaced apart from each other and having a plurality of spray holes H facing each other And a plurality of spray holes H arranged in the front of the first space part 111 of the transfer space part 11 so as to be spaced apart from each other in the forward and rearward directions and disposed on the right side of the first nozzle 21, A pair of second nozzles 22 and a plurality of jet holes H directed toward the second space portion 112 side of the transfer space portion 11 and spaced left and right from the bottom surface of the top block 10B And a mixing supply means (24) for supplying the impregnating liquid to the nozzles (21, 22, 23)
The injecting unit 20 is configured such that the carbon fibers 1 of the plurality of carbon fibers 1 are connected to the respective injection holes H of the pair of first nozzles 21 and the pair of second nozzles 22, Further comprising guide rollers (25) arranged in the first spatial part (111) of the transfer space part (11)
The pair of third nozzles 23 is formed with an arc-shaped bottom face C convex downward,
And the injection hole (H) is arranged in a radial manner in the recessed face portion (C).
8. The method of claim 1 or 7,
An overflow check hole 12 (not shown) is provided in the top block 10B of the block body 10 to confirm whether the supply amount of the impregnation liquid supplied into the transfer space portion 11 of the bottom block 10A is visually confirmed or overflowed ) Is formed on the surface of the carbon fiber drawn-out molding machine.

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