KR102076234B1 - Apparatus for spreading the carbon fiber - Google Patents

Abstract

The present invention relates to an apparatus for spreading carbon fiber, which is capable of easily adjusting tension applied to reinforcement fiber. According to the present invention, the apparatus for spreading carbon fiber comprises: a body unit including a pair of left and right middle fixing plates of which both ends are fixed to a main frame, a pair of left and right upper moving plates which is disposed on the upper part of the middle fixing plate at a predetermined interval, and a pair of left and right lower moving plates which is disposed on the lower part of the middle fixing plate at a predetermined interval; a fiber contact unit including a plurality of first middle contact bars which are connected to a plurality of first middle connection shafts having both ends connected to the pair of left and right middle fixing plates via a first middle link bar, a plurality of second middle contact bars which are connected to a plurality of second middle connection shafts having both ends connected to the pair of left and right middle fixing plates via a second middle link bar, a plurality of upper contact bars which are connected to a plurality of upper connection shafts having both ends connected to the pair of left and right upper fixing plates via an upper link bar, and a plurality of lower contact bars which are connected to a plurality of lower connection shafts having both ends connected to the pair of left and right lower fixing plates via a lower link bar; and an operation unit including a pair of left and right guide bars which has a middle portion of the length supported to a pair of left and right support blocks disposed on the middle fixing plate wherein upper and lower bushes, where the upper and lower ends of the pair of left and right guide bars are assembled to move, are provided on the upper and lower moving plates, respectively, and fixing and installing each of upper and lower cylinder members, to which the upper and lower moving plates and ends of a rod are each connected, on the middle fixing frame to relatively move the upper and lower moving plates to the middle fixing plate in a vertical direction.

Description

Apparatus for spreading the carbon fiber}

The present invention relates to a device for spraying carbon fiber, which is a reinforcing fiber for prepreg, and more particularly, to directly contact the reinforcing fiber that runs in one direction along a pass line, and to easily adjust the vertical space between the spraying contact means and the left and right positions. The present invention relates to a reinforcing fiber spraying device that can be applied to a reinforcing fiber to be sprayed by varying the tension, and can easily perform tension control applied to the reinforcing fiber.

In general, prepreg is an intermediate material for fiber-reinforced composite materials, which is a molding material in which a matrix resin is pre-impregnated with a reinforcing fiber. The prepreg is manufactured while being wound on a branch pipe in combination with a release paper. The prepreg is laminated with a prepreg while being separated from the release paper, heated and pressed to cure the resin to produce a molded article.

In the prepreg manufacturing system, the manufacturing system varies depending on the type of the matrix resin, and the prepreg manufacturing system in which the thermoplastic resin is applied as the matrix resin prepares the reinforcing fibers (yarn or sheet) wound on the roller. Desizing of the protective agent (epoxy series) contained in the reinforcing fiber, heating the de-reinforcing fiber, thermoplastic film, and release paper in the process of supplying and moving them in a stack, and then pressing at an appropriate pressure. The thermoplastic resin is impregnated into the reinforcing fibers, and the prepreg of the state in which the release paper is integrally attached to one surface of the reinforcing fibers is wound around the paper tube to complete the production.

In addition, in the manufacturing system of prepreg applying a thermosetting resin as a matrix resin, a reinforcing fiber (yarn, tow) wound on a roller is prepared, and the thermosetting resin is impregnated in the reinforcing fiber by passing the reinforcing fiber through a thermosetting resin contained in a container. And squeezing (removing) the thermosetting resin of the reinforcing fibers while passing through a pair of rollers, passing the squeezed reinforcing fibers through an oven, drying the thermosetting resin of the reinforcing fibers, and then one side of the dried reinforcing fibers, or After attaching the release paper on both sides and wrapping the paper tube, the production is completed.

Meanwhile, in the manufacturing system to which the thermoplastic resin is applied, the reinforcing fiber supplied to the yarn expands the contact area at the time of laminating the prepreg, and spreads the thin stripped reinforcing fiber into strands to facilitate the impregnation of the resin. There is a need for a spreading device that is a device that performs the operation.

(Patent Document 1) KR10-1676732 B1

Patent Document 1 discloses an apparatus for spraying a reinforcing fiber which is a fiber bundle by using a high differential speed between the driven roller and the line speed of the running fiber bundle by the strategic use of tension control through the device.

However, the conventional spraying apparatus can adjust the tension applied to the fiber bundle to spray the reinforcing fibers by using the tension increasing unit and the tension reducing unit consisting of the fixed bar and the driven roller, but the fixed bar arranged up and down Since the driven rollers are always fixed in position, it is impossible to vary the spacing between them to impart various tensions to the one-way running fiber bundles.

Accordingly, the spraying process that can be adjusted while giving various tension to the reinforcing fibers of the fiber bundle according to the process conditions by changing the upper and lower intervals or positions of the upper and lower spraying contact means installed in the pass line to move the fiber bundle. The need has arisen.

Therefore, the present invention is to solve the problems described above, the purpose is to directly contact the reinforcing fibers that proceed in one direction along the pass line, and to easily change the upper and lower intervals or left and right positions between the spraying contact means to tension It is applied to the reinforcing fibers to be sprayed, and to provide a reinforcing fiber spraying device that can easily perform the tension control applied to the reinforcing fibers.

Technical problems to be achieved in the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

As a specific means for achieving the above object, a preferred embodiment of the present invention, in the apparatus for spraying by applying an external force while contacting the reinforcing fibers proceeding in one direction, the left and right pairs of both ends fixed to the body frame A main body having a fixed plate, and having a left and right pair of upper movable plates arranged at a predetermined interval on an upper portion of the intermediate fixing plate, and including a left and right pair of lower movable plates disposed at a predetermined interval on a lower portion of the intermediate fixed plate; A plurality of first intermediate connecting bars connected at both ends to the left and right pair of intermediate fixing plates and a plurality of first intermediate contact bars connected through a first intermediate link bar, and a plurality of both ends connected to the left and right pair of intermediate fixing plates. A plurality of second intermediate contact bars connected through a second intermediate connecting shaft and a second link intermediate bar, and connected via upper link bars and a plurality of upper connecting shafts connected at both ends of the pair of upper and lower movable plates. A fiber contact part having a plurality of upper contact bars, the fiber contact part including a plurality of lower contact bars connected to both ends of the left and right pairs of lower movable plates via a lower link shaft and a lower link bar; The left and right pairs of guide bars provided with the left and right pairs of support blocks provided in the middle fixing plate, the upper and lower bushes of the upper and lower ends of the left and right pairs of guide bars are assembled so as to be movable, respectively. The upper and lower cylinders are respectively provided on the lower movable plate, and the upper and lower cylinder members to which the upper and lower movable plates and the rod ends are connected are fixed to the middle fixed plate, respectively, so that the upper and lower movable plates are perpendicular to the middle fixed plate. It provides a reinforcing fiber spraying device, including a movable portion to move relative, to give a tension to the reinforcing fibers in one direction in contact with the upper contact bar and the first intermediate contact bar and the lower contact bar and the second intermediate contact bar. .

Preferably, one end of any one of the upper and lower link bars of the link bar is assembled to be rotatable with any one of the connecting shaft of the upper and lower connecting shafts of the upper and lower movable plates, and any of the upper and lower link bars By rotating one link bar at an angle, the upper and lower contact bars may be relatively moved away from or close to the first and second intermediate contact bars provided in the intermediate fixing plate.

 Preferably, both ends of any one of the plurality of upper and lower connecting shafts are constrained to be connected to the upper and lower movable plates through a support plate positioned inside each of the upper and lower movable plates. One side of the upper and lower movable plate comprises a control bar having a fixing member that is exposed to the outside through the circular arc hole cut in any one of the movable plate, the outer connecting shaft of the plurality of upper and lower connecting shafts the support plate The upper and lower contact bars are relatively far from the first and second intermediate contact bars provided in the intermediate fixing plate by penetrating and being assembled to any one of the upper and lower moving plates and rotating the support plate at an angle. Relative to move or lose.

According to the preferred embodiment of the present invention as described above has the following effects.

By moving the upper and lower movable plates relative to the intermediate fixing plate, the area between the reinforcing fibers and the outer surface of the contact bar can be changed while changing the upper and lower intervals between the upper and lower contact bars and the first and second intermediate contact bars. Since the upper and lower contact bars and the first and second intermediate contact bars are in contact with each other to increase or decrease the tension applied to the reinforcing fiber in one direction, various tensions can be given to the spraying process, and the cross section of the reinforcing fiber is expanded. The spraying process may be stably performed.

The distance between the upper and lower contact bars and the first and second intermediate contact bars is moved up and down by moving the upper and lower moving plates relative to the middle fixed plate and rotating the upper and lower link bars at an angle or by rotating the supporting plate at an angle. While the reinforcing fibers can vary the area in contact with the outer surface of the contact bar while varying, while increasing or decreasing the tension applied to the reinforcing fibers in one direction by contacting the upper and lower contact bars and the first and second intermediate contact bars. Various tensions can be given in combination with the spraying process, and the spraying process of expanding the cross section of the reinforcing fiber can be stably performed.

1 is an overall perspective view showing a state in which the reinforcing fiber spraying apparatus according to an embodiment of the present invention is installed in the main body frame.
Figure 2 is a perspective view showing a reinforcing fiber spraying apparatus according to an embodiment of the present invention.
Figure 3 is a front view showing a reinforcing fiber spraying device according to an embodiment of the present invention.
Figure 4 is a side view showing a reinforcing fiber spraying apparatus according to an embodiment of the present invention.
5 is a plan view showing a reinforcing fiber spraying apparatus according to an embodiment of the present invention.
Figure 6a and Figure 6b is a block diagram showing a state provided with a support plate in the reinforcing fiber spraying apparatus according to an embodiment of the present invention.
7a to 7c is a configuration diagram of the operating state of the reinforcing fiber spraying apparatus according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing in detail the structural principle of the preferred embodiment of the present invention, when it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings.

In addition, throughout the specification, when a part is 'connected' to another part, it is not only 'directly connected' but also 'indirectly connected' with another element in between. Include. In addition, the term 'comprising' a certain component means that the component may be further included, without excluding the other component unless specifically stated otherwise.

As shown in FIG. 1, the reinforcing fiber spraying apparatus 100 according to the preferred embodiment of the present invention is deprotected in order to increase the interfacial contact area when the prepreg is laminated, and to facilitate the impregnation of the thermoplastic or thermosetting resin. It may include a main body portion 10, the fiber contact portion 20 and the operation portion 30 to perform a thin spraying process by applying an external force to each short fiber of the reinforcing fiber bundle.

As shown in FIGS. 1 to 5, the main body 10 includes a pair of left and right middle fixing plates 11 which are coupled to both ends of the main frame 200 in a substantially rectangular frame shape and are positioned. The upper and lower pairs of left and right pairs of upper and lower pairs arranged horizontally at a predetermined interval on each upper portion of the pair of intermediate fixing plates, and the lower left and right pairs disposed at regular intervals on each lower portion of the pair of middle fixing plates 11 It may include a lower movable plate (13) of.

The upper and lower moving plates 12 and 13 of the upper and lower moving plates 12 and 13 connected to the operating unit without being bound to the main body frame and movable in the vertical direction by the operating unit are not directly constrained to the main frame. Place side by side with.

The main body frame 200 coupled to the main body 10 may include a plurality of moving wheels at a lower end thereof so as to be movable on the bottom surface.

1 to 5, as shown in FIGS. 1 to 5, the reinforcing fibers, which are spraying objects, are in direct contact with each other, and the fiber contacting portions 20 are connected to the left and right pairs of intermediate fixing plates 11. A first intermediate link bar having a plurality of first intermediate connection shafts 21 both ends of which are directly or indirectly connected to the upper edge of the upper edge; 21a) may include a plurality of first intermediate contact bars 22 having both ends connected to each other, and the outer surface of the reinforcing fibers moving in one direction.

A plurality of second intermediate connecting shafts 23 both ends of which are directly or indirectly connected and restrained at lower edges of the left and right pair of middle fixing plates 11, and provided at both ends of the second intermediate connecting shaft 23. It may include a plurality of second intermediate contact bar 24 which is connected to both ends through the second link intermediate bar (23a) is provided in contact with the other reinforcing fibers and the outer surface is moved in one direction.

The upper link bar includes a plurality of upper connection shafts 25 at which both ends are directly or indirectly connected and restrained at lower edges of the pair of upper and lower movable plates 12, and are provided at both ends of the upper connection shaft. Both ends may be connected to each other via a plurality of upper contact bars 26 that are connected to the first intermediate contact bar 22 to be in contact with the first intermediate contact bar 22 and in which the reinforcing fiber turned upward and the outer surface is in contact with each other.

And a plurality of lower connection shafts 27 which are both ends connected directly or indirectly to the upper edges of the left and right pairs of lower movable plates 13, and both ends of the lower connection shafts and the lower link bars 27a. Both ends may be connected to each other by a second intermediate contact bar 24 may include a plurality of lower contact bar 28 which is in contact with the outer surface and the other reinforcing fibers turned downward while passing through.

Here, the first and second intermediate contact bars 22 and 24 having predetermined intervals on the upper and lower edges of the intermediate fixing plate 11 are disposed to correspond one-to-one on the same vertical line, whereas the upper movable plate ( The upper contact bar 26 provided at 12 is provided to be positioned between the pair of first intermediate contact bars 22 adjacent to each other, and the lower contact bar 28 provided at the lower movable plate 13. ) Is preferably provided between the pair of second intermediate contact bars 24 adjacent to each other.

Accordingly, the reinforcing fiber that has passed the defrosting process, which is a process before the spraying process is made, is in contact with the outer surface of the first and second intermediate contact bars, and is respectively turned up and down, and then the upper and lower contact bars and After passing through the spraying process while repeatedly forming a zig-zag pass line which is switched in contact with other adjacent first and second intermediate contact bars, it is transferred to a subsequent impregnation process.

In this case, while the reinforcing fibers are in contact with the first and second intermediate contact bars and the upper and lower contact bars in one direction, the reinforcing fibers are adjusted to increase or decrease the tension transmitted to the reinforcing fibers or the reinforcing fibers are in contact with the outer surface. By varying the contact areas of the first and second intermediate contact bars and the upper and lower contact bars, the spreading process of thinning the reinforcing fibers can be more diversified to facilitate impregnation.

As shown in FIGS. 1 to 5, the operation unit 30 has any one of the upper and lower movable plates 12 and 13 with respect to the intermediate fixing plate 11 fixed to the main body frame 200. The moving plate is selectively moved relative to move away from or in the vertical direction, or the upper and lower moving plates move relative to move away from or in the vertical direction at the same time.

 The operation unit 30 includes a pair of left and right guide bars 31 which are coupled in length to a support block 32 fixedly installed on an outer surface of the intermediate fixing plate 11, and the left and right pair of guides. The upper and lower ends of the bar 31 may be slidably assembled to the upper and lower bushes 31a and 31b respectively fixed to the outer surfaces of the upper and lower movable plates.

The guide bar 31 is illustrated and described as being made of a single straight bar of vertical length, the length of which is supported by the support block 32 in the middle, but is not limited thereto, the upper and lower ends are fixed to the fixed block, respectively, The upper and lower bushes may be made up of a pair of upper and lower straight bars which are assembled to slide on the upper and lower ends, respectively.

Upper and lower cylinder members 33 to which upper and lower fixing brackets 33a and 33b and respective rod ends are connected to the outer surface of the intermediate fixing plate 11 are fixed to the upper and lower movable plates 12 and 13, respectively. And 34) are installed vertically.

The upper and lower cylinder members 33 and 34 are coupled to and fixed to the cylinder bracket fixed to the intermediate fixing plate, and the rod ends of the upper and lower cylinder members are respectively fixed to the upper and lower fixing brackets 33a and 33b. It is preferable to be rotatably connected via the pin member.

Accordingly, the gap between the first intermediate contact bar and the upper contact bar is moved by relatively moving the upper and lower movable plates selectively away from or close to the intermediate fixing plate by the operation of the upper and lower cylinder members 33 and 34. The distance between the second intermediate contact bar and the lower contact bar can be varied to widen or narrow.

That is, as shown in FIG. 7A, the upper and lower movable plates 12 and 13 are moved relatively apart from the first and second intermediate contact bars 22 and 24 provided in the intermediate fixing plate 11. When the distance between the first intermediate contact bar 22 and the upper contact bar 26 and the distance between the second intermediate contact bar 24 and the lower contact bar 28 becomes wider, one-way contact with them is performed. In addition to increasing the tension transmitted to the reinforcing fibers, the area where the reinforcing fibers are partially in contact with the outer surface of each contact bar is increased, so that the thickness of the reinforcing fibers, which are to be sprayed, can be processed thinner.

At this time, the gap adjustment between the first intermediate contact bar and the upper contact bar and the gap adjustment between the second intermediate contact bar and the lower contact bar may be performed by operating the upper and lower cylinder members connected to the upper and lower movable plates. have.

The distance between the first intermediate contact bar and the upper contact bar through which the upper reinforcing fiber passes, and the distance between the second intermediate contact bar and the lower contact bar through which the lower reinforcing fiber passes can be controlled to be the same, but is limited thereto. It can be controlled differently according to the design of the prepreg manufacturing process.

In addition, as shown in Figure 7b, one end of the link bar of the upper, lower link bar is assembled rotatably with any one of the upper, lower connecting shaft of the upper, lower moving plate, By rotating the link bar of any one of the upper and lower link bars at a predetermined angle, the upper and lower contact bars can be relatively moved relative to or far from or close to the first and second intermediate contact bars provided in the intermediate fixing plate.

That is, the upper link bar 25a and the upper end of the upper movable plate 12 are assembled, and the upper link bar 25a having the upper contact bar 26 at the lower end rotates at a predetermined angle in the clockwise direction. The lower linking shaft 27 and the lower end of the lower movable plate 13 are assembled, and the lower link bar 27a having the lower contact bar 28 on the upper side rotates at an angle counterclockwise in the drawing to the middle. Between the first intermediate contact bar 22 and the upper contact bar 26 by relatively moving the upper and lower contact bars away from the first and second intermediate contact bars 22 and 24 provided on the fixed plate 11. As the spacing between the second intermediate contact bar 24 and the lower contact bar 28 increases, the tension of the reinforcing fibers transmitted to the one-way reinforcing fibers in contact with them increases and the reinforcing fibers are in contact with each other. Spray because the area that is partially in contact with the outer surface of the The thickness of the reinforcing fiber, which is the ding target, can be made thinner.

At this time, the rotation of the upper and lower link bars (25a, 27a) is made by the rotational driving force of the actuator, such as a motor connected to each one end of the upper and lower connecting shafts rotatably assembled at both ends to the upper and lower movable plates. It is made by an actuator such as a cylinder member connected to the upper and lower link bars rotatably assembled at each end of the upper and lower connecting shafts, or by a manual operation of an operator to rotate the upper and lower connecting shafts or the upper and lower link bars by manpower. Can be done.

Meanwhile, both ends of the plurality of upper and lower connecting shafts are illustrated and described as being directly connected to and restrained by the upper and lower moving plates, respectively, but the present invention is not limited thereto. Both ends of the connecting shaft are constrained to be connected to the upper and lower movable plates via a support plate positioned inside each of the upper and lower movable plates, and one of the upper and lower movable plates is provided on one surface of the supporting plate. And an adjustment bar having a fixing member exposed to the outside through an arc hole cut into an arc shape, and the outer connecting shaft of the plurality of upper and lower connecting shafts passes through the support plate and is rotated to any one of the upper and lower movable plates. It is assembled as possible, and the upper and lower with respect to the first and second intermediate contact bar provided on the intermediate fixing plate by rotating the support bar at an angle The sub-contact bars can be moved relative to move away from each other.

That is, as shown in Figure 6a and Figure 6b, both ends of the plurality of upper and lower connecting shafts and the upper and lower movable plate via the support plate 29 which is located inside each of the upper and lower movable plate Constrained to be connected, the end of the control bar (29a) is provided on one side of the support plate 29 is exposed to the outside through the arc hole (12a, 13a) formed in an arc-shaped cut on the upper, lower moving plate, a plurality of images The end of the outer connecting shaft of the lower connecting shaft is rotatably assembled to the upper and lower moving plates through the support plate 29, the support plate may include a bearing member (29b) for rotatably supporting the connecting shaft. have.

In this case, as shown in FIG. 7C, the support plates 29 connected to both ends of the plurality of upper connecting shafts 25 are rotated at a predetermined angle with the outer upper connecting shafts as the center of rotation in the counterclockwise direction in the drawing. First and second intermediate contact bars 22 provided on the intermediate fixing plate 11 by rotating the support plate connected to both ends of the two lower connecting shafts 27 at an angle with the outer lower connecting shaft as the rotation center in the clockwise direction on the drawing. The upper and lower contact bars are moved relative to each other so that the upper and lower contact bars are separated from each other, and thus the distance between the first intermediate contact bar 22 and the upper contact bar 26 and the second intermediate contact bar 24 and the lower contact bar ( 28, the wider the gap between the reinforcing fibers and the one-way reinforcing fibers, the more the area of contact with the outer surface of each contact bar increases. Ray is capable of coding processing thinner the thickness of the object to the reinforcing fiber.

At this time, the rotation operation of the support plate 29 is made along the circular hole 12a, 13a formed through the upper and lower movable plates so that the adjustment bar is exposed to the outside, the position fixing of the rotation operation of the support plate It is possible to maintain the rotation state of the support plate rotationally displaced by a fixing member such as a nut member provided at the end.

delete

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

10: main body
11: middle fixing plate
12: upper transfer plate
13: lower moving plate
20: fiber contact part
21: first intermediate connecting shaft
22: first intermediate contact bar
23: second intermediate connecting shaft
24: second intermediate contact bar
25: upper connecting shaft
26: upper contact bar
27: lower connecting shaft
28: lower contact bar
28: support plate
30: operating part
31: Information Bar
32: support block
33,34: Upper and lower cylinder member

Claims (3)

In the device for spraying by applying an external force while in contact with the reinforcing fibers running in one direction,
A left and right pair having left and right pairs of middle fixing plates fixed at both ends in the main body frame, and having a left and right pair of upper movable plates arranged at regular intervals on the upper part of the middle fixing plate, and arranged at regular intervals under the middle fixing plate. A main body portion including a lower moving plate of the;
A plurality of first intermediate connecting bars connected at both ends to the left and right pair of intermediate fixing plates and a plurality of first intermediate contact bars connected through a first intermediate link bar, and a plurality of both ends connected to the left and right pair of intermediate fixing plates. A plurality of second intermediate contact bars connected through a second intermediate connecting shaft and a second link intermediate bar, and connected via upper link bars and a plurality of upper connecting shafts connected at both ends of the pair of upper and lower movable plates. A fiber contact part having a plurality of upper contact bars, the fiber contact part including a plurality of lower contact bars connected to both ends of the left and right pairs of lower movable plates via a lower link shaft and a lower link bar;
The upper and lower bushes having left and right pairs of guide bars having a middle length supported on left and right pairs of support blocks provided on the left and right pairs of middle fixing plates, and the upper and lower ends of the left and right pairs of guide bars are movable to be assembled. The upper and lower movable plates are respectively provided on the upper and lower movable plates, and the upper and lower cylinder members to which the upper and lower movable plates and the rod end are connected are fixed to the intermediate fixing plate, respectively. Including an operation unit for moving relative to the vertical direction,
Reinforcing fiber spraying apparatus characterized in that the tension is applied to the reinforcing fibers in one direction in contact with the upper contact bar and the first intermediate contact bar and the lower contact bar and the second intermediate contact bar. The method of claim 1,
One end of one of the link bars of the upper and lower link bars is assembled to be rotatable with any one of the connecting shafts of the upper and lower connecting shafts of the upper and lower movable plates, and the link of any one of the upper and lower link bars. Reinforcing fiber spraying apparatus characterized in that the upper and lower contact bars relative to the first and second intermediate contact bar provided in the intermediate fixing plate by moving the bar at an angle so that the upper and lower contact bars relatively move or move relatively. The method of claim 1,
Both ends of any one of the plurality of upper and lower connecting shafts are constrained to be connected to the upper and lower movable plates through a support plate positioned inside each of the upper and lower movable plates.
One side of the support plate includes a control bar having a fixing member that is exposed to the outside through an arc hole cut into an arc of any one of the upper, lower moving plate, the outer connecting shaft of the plurality of upper, lower connecting shaft The upper and lower contact bars relative to the first and second intermediate contact bars provided on the intermediate fixing plate are pivotally assembled to one of the moving plates of the upper and lower moving plates and rotated at a predetermined angle. Reinforcing fiber spraying apparatus characterized in that the relative movement to move away or close.

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