KR102487574B1 - Fiber composite winding device - Google Patents

Abstract

The present invention relates to a fiber composite winding device which can manufacture pressure containers, tubular tubes, vehicle rims, and the like using fiber composites, and can manufacture a structure-reinforced hollow preform by going through a lamination process of winding a second fiber in a direction crossing a first fiber disposed in the axial direction. The fiber composite winding device includes a main body unit, a mandrel unit, a bobbin unit, and a winder unit.

Description

Fiber composite winding device {FIBER COMPOSITE WINDING DEVICE}

The present invention relates to a fiber composite winding device capable of axial lamination capable of manufacturing a pressure vessel, a tubular tube, a rim for a vehicle, or the like using the fiber composite material.

In general, structures such as pressure vessels, tubular tubes, and vehicle rims are mainly made of iron or aluminum. Among them, the vehicle rim has a hollow shape constituting a wheel to which a tire is coupled, and the vehicle rim may be directly related to the weight of the vehicle depending on the material.

In a hybrid vehicle that has been recently developed, weight reduction of a vehicle may be an important factor in terms of energy efficiency, that is, improvement in fuel efficiency. Therefore, the need for a vehicle rim that is light in weight while maintaining the same strength as before is also emerging.

In accordance with this need, a vehicle wheel to which a composite rim using a reinforcing fiber is applied has recently been developed. Composite rims are much lighter than steel or aluminum rims, and their strength can be similar to or improved.

An apparatus for manufacturing a rim for a vehicle using a composite material has been previously filed as Korean Patent Publication No. 10-2017-0088518 (published date: 2017.08.02).

However, the conventional apparatus for manufacturing a rim for a vehicle has a configuration in which a mold is repeatedly moved between a braiding machine and a winding machine to manufacture a preform, and thus the implementation of the apparatus is complicated and the apparatus is expensive.

Republic of Korea Patent Publication No. 10-2017-0088518 (published date: 2017.08.02.)

The present invention has been made to solve the above-mentioned problems, and it is possible to manufacture a pressure vessel, a tubular tube, a rim for a vehicle, etc. using a fiber composite material, but a second fiber in a direction crossing the first fiber disposed in the axial direction An object of the present invention is to provide a fiber composite winding device capable of manufacturing a structure-reinforced hollow preform by going through a lamination process of winding.

A fiber composite winding device according to the present invention for implementing the above object includes a main body having at least one pair of supports; a mandrel unit installed between the pair of supports and provided with a mold for manufacturing a preform rotatably coupled by receiving power; It is coupled to be reciprocally movable along the longitudinal direction of the rotation shaft so that a plurality of first fibers can be disposed around the outer circumferential surface of the mold in parallel with the rotation shaft, and is fixed to the mandrel unit when the mandrel unit rotates and rotates integrally. bobbin part to do; And installed at one side of the main body part to be spaced apart in parallel with the rotational axis of the mandrel unit and reciprocally movable along the longitudinal direction of the rotational shaft. It may include; a winder unit for winding the second fiber along the direction of the rotation axis.

In this case, the mandrel part further includes a pair of fixing plates spaced apart from each other with the mold interposed on both sides of the rotary shaft in the longitudinal direction and rotated integrally with the rotary shaft, so that the bobbin part moves to one side or the other side of the rotary shaft. After moving, it may be fixed to the fixing plate.

In addition, the mold may be separated into two halves when the rotating shaft is separated from the support, and the preform after manufacture may be removed.

In addition, the joint surface of the bisected mold may include a coupling protrusion and a coupling groove correspondingly provided so as to be integrally rotated in a coupled state.

In addition, the bobbin unit may include a hollow bobbin ring having an inner diameter larger than the outer diameter of the mold so as to be reciprocally movable along the longitudinal direction of the rotation shaft on which the mold is provided; a plurality of first bobbins radially disposed spaced apart from the bobbin ring at a predetermined angle around the rotation axis and around which the first fibers are wound; And coupled to the upper surface of the main body so as to be reciprocally movable along the longitudinal direction of the rotating shaft, so that when the first fiber is disposed in the mold, the lower surface of the bobbin ring separated from the fixing plate is supported and the longitudinal direction of the rotating shaft is supported. It may include; a sliding member that moves along.

In addition, the bobbin ring may be detachably coupled to the fixing plate or the sliding member via a fastening member.

In addition, the bobbin ring may be provided with an opening for passing the second fiber at one side to prevent interference with the second fiber wound on the outer circumferential surface of the mold when reciprocating along the longitudinal direction of the rotation shaft.

In addition, the winder unit may include a moving frame coupled to be reciprocally movable along the longitudinal direction of the rotating shaft; a second bobbin provided on the moving frame and around which the second fiber is wound; and a drawing hole coupled to the moving frame so as to protrude in a direction crossing the rotation axis and discharging the second fiber, so that the second fiber connected to the mold interferes with the edge of the opening when the bobbin ring moves. It may include; a guide member to prevent this.

In addition, a fixing member for fixing an initial position of the second fiber, which starts winding in one direction or another direction of the mold, may be provided on the opposite surface of the fixing plate.

In addition, the first fiber and the second fiber may be repeatedly laminated at least twice or more.

In the fiber composite winding device according to the present invention having the configuration described above, the bobbin unit moves along the rotational axis of the mandrel unit while disposing the first fibers in the axial direction, and the winder unit on one side moves along the rotational axis to arrange the outer circumferential surface of the first fiber. By going through the lamination process of winding the second fiber in a direction crossing the axial direction and the longitudinal direction of the preform to be manufactured, the lamination angles in the axial direction and the longitudinal direction can be arbitrarily changed, and thus the strength of the product can be efficiently designed, and the winding process time can be expected to reduce

In addition, cost can be reduced by configuring the fiber composite material winding device according to the present invention with a simple structure.

1 is a perspective view of a fiber composite winding device according to the present invention;
2 is an exploded perspective view of a fiber composite winding device according to the present invention;
3 is a side view of a fiber composite winding device according to the present invention;
4 and 5 are operating state diagrams of the fiber composite winding device according to the present invention;
6a to 6d are views showing a process of manufacturing a preform using a fiber composite winding device according to the present invention;
7 is a perspective view showing a preform manufactured using the fiber composite winding device according to the present invention.

Hereinafter, the configuration and operation of specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Here, in adding reference numerals to the components of each drawing, it should be noted that the same components are marked with the same numerals as much as possible, even if they are displayed on different drawings.

1 is a perspective view of a fiber composite winding device according to the present invention, and FIG. 2 is an exploded perspective view of the fiber composite winding device according to the present invention.

Referring to FIG. 1 , a fiber composite material winding device 1 according to a preferred embodiment of the present invention may include a body part 100, a mandrel part 200, a bobbin part 300, and a winder part 400. can

The detailed description of the configuration of the present invention is as follows.

First, as a main lower frame of the fiber composite winding device 1 of the body portion 100, at least one pair of supports 110 may be spaced apart from each other on both sides of the upper surface of the body portion 100.

The mandrel part 200 is provided in the space between the pair of supports 110, and the mold 210 for manufacturing preforms rotatably coupled to the coupling holes 111 of the support 110 has both ends of the rotating shaft 220. may be provided. In this case, the rotating shaft 220 may be rotated in one direction by receiving power from a motor (not shown).

In addition, the mandrel unit 200 may be provided with a pair of fixing plates 230 that are spaced apart from each other on both sides of the rotary shaft 220 in the longitudinal direction with the mold 210 interposed therebetween and rotate integrally with the rotary shaft 220. there is.

That is, the fixing plate 230 can be fixed to the opposite surface of the fixing plate 230 after the bobbin part 300, which will be described later, moves to one side or the other side of the rotating shaft 220, and the specific role of the fixing plate 230 Will be described in detail in the bobbin unit 300 to be described later.

2 and 3, the mold 210 may be separated into two halves when the rotating shaft 220 is separated from the support 110, and accordingly, the preform 10 (see FIG. 7) that has been manufactured is removed. is possible

Specifically, the mold 210 includes a first body 211 integrally formed with a first rotating shaft 221 rotatably coupled to one side of the support 110 and rotatably coupled to the other side of the support 110 It may include a second body 212 integrally formed with the second rotation shaft 222 .

In addition, the first body 211 and the second body 212 are coupled to the joint surface of the mold 210 divided into two halves so that the first body 211 and the second body 212 can be rotated integrally in a coupled state. A structure (not shown) of the protrusion and the coupling groove may be provided to correspond. Accordingly, when the bisected mold 210 is combined again, it can be rotated integrally with the rotating shaft 220 .

For reference, although the rotating shaft 220 and the mold 210 are shown in a separated state in FIG. 2, this is for ease of understanding, and the rotating shaft 220 and the mold 210 may be integrally formed.

In addition, in the present invention, an example of the case where one mold 210 is provided has been shown and described, but the mold 210 can be changed and applied to a case where a plurality of molds 210 are spaced apart along the longitudinal direction of the rotation shaft 220. can Accordingly, a plurality of preforms 10 can be manufactured at one time.

For reference, the preform 10 may adopt a configuration in which fibers coated with a resin or a binder are used, or a resin is applied to fibers and wound by placing a resin in a winder or the like.

As another example, the fiber may be wound in a dry state or resin-impregnated prepreg, mat, fiber, etc., and may be manufactured in the form of a dry preform or impregnated prepreg (fiber, fabric, mat).

The bobbin part 300 arranges a plurality of first fibers 11 in parallel with the rotating shaft 220 around the outer circumferential surface of the mold 210, and the bobbin unit 300 has the length of the rotating shaft 220. It may be coupled to be reciprocating along the direction.

Specifically, the bobbin part 300 is a hollow bobbin ring 310 having an inner diameter larger than the outer diameter of the mold 210 so as to be reciprocally movable along the longitudinal direction of the rotary shaft 220 on which the mold 210 is provided. And, it may include a plurality of first bobbins 320 radially disposed spaced apart from the bobbin ring 310 at a predetermined angle around the rotation shaft 220 and around which the first fibers 11 are wound.

In this case, the bobbin ring 310 may be provided with a first bobbin 320 accommodating space S (see FIG. 2) on one surface. For example, 72 first bobbins 320 may be arranged at a predetermined angle apart in the storage space S, and 72 strands of first fibers 11 may be arranged on the outer circumferential surface of the mold 210 . In the present invention, the number of the first bobbins 320 is not limited, and may be variously changed according to the size of the preform 10 to be manufactured.

In addition, a drawing hole 311 through which the first fiber 11 is drawn from the first bobbin 320 may be provided on an inner circumferential surface of the bobbin ring 310 .

The bobbin ring 310 as described above may be fixed to the mandrel part 200 to rotate integrally when the mandrel part 200 rotates after the first fiber 11 is disposed around the outer circumferential surface of the mold 210. .

That is, when the first fiber 11 rotates the mold 210 disposed on the outer circumferential surface, the bobbin ring 310 does not rotate with the mold 210 and is fixed in place and stops. The first fiber 11 may be twisted. Due to this, the winding process itself cannot proceed. Therefore, when the first fiber 11 is disposed on the outer circumferential surface of the mold 210, the bobbin ring 310 is slidable along the longitudinal direction of the rotating shaft 220.

After the arrangement of the first fibers 11 on the outer circumferential surface of the mold 210 is completed, the bobbin ring 310 is integrally fixed to the fixing plate 230 on one side of the rotating shaft 220 so that the bobbin ring 310 is fixed to the fixing plate ( 230) to rotate together. Accordingly, twisting of the disposed first fibers 11 can be prevented.

Referring to FIG. 4 , the bobbin unit 300 may include a sliding member 330 coupled to an upper surface of the body unit 100 to be reciprocally movable along the longitudinal direction of the rotating shaft 220 . The sliding member 330 may receive power and move along the longitudinal direction of the rotating shaft 220 . As the structure for reciprocating the sliding member 330 can selectively apply known actuators and structures such as guide rails, a detailed description thereof will be omitted.

When the first fiber 11 is disposed on the outer circumferential surface of the mold 210, the sliding member 330 supports the lower surface of the bobbin ring 310 separated from the fixing plate 230 along the longitudinal direction of the rotating shaft 220. can be moved

In addition, the bobbin ring 310 may be detachably coupled to the fixed plate 230 or the sliding member 330 via a fastening member (not shown). The fastening member may be automatically or manually fastened, and the fastening structure and position of the fastening member may be variously changed and applied, and thus the present invention is not specifically limited thereto.

In addition, the bobbin ring 310 has a second fiber ( 12) A passage opening 313 may be provided.

In this case, in the present invention, an example of a case in which the bobbin ring 310 is reciprocally coupled along the axial direction via the sliding member 330 has been shown and described, but the bobbin ring 310 moves in the axial direction When moving along, the first fibers 11 may be disposed on the outer circumferential surface of the mold 210 at a predetermined angle while rotating at a predetermined angle (eg, 15 to 30 °).

Referring to FIG. 5, the winder unit 400 is provided along the direction of the rotation axis 220 on the outer circumferential surface of the first fiber 11 disposed on the outer circumferential surface of the mold 210 when the mandrel unit 200 rotates. 12) can be wound. The winder unit 400 may be installed at one side of the main body unit 100 to be spaced apart in parallel with the rotating shaft 220 of the mandrel unit 200 and reciprocally move along the longitudinal direction of the rotating shaft 220.

Specifically, the winder unit 400 is provided with a moving frame 410 coupled to be reciprocally movable along the longitudinal direction of the rotating shaft 220, the moving frame 410, and the second fiber 12 is wound. The second bobbin 420 provided and the second fiber 12 connected to the mold 210 when the bobbin ring 310 moves by being coupled to the moving frame 410 so as to protrude in a direction crossing the rotating shaft 220 It may include a guide member 430 that prevents interference with the edge of the opening 313 .

In this case, the moving frame 410 may be operated to reciprocate at a predetermined speed corresponding to the winding speed of the second fiber 12 along the longitudinal direction of the rotating shaft 220 by receiving power. As the operating principle of the moving frame 410 can be configured by applying structures such as known actuators and guide rails, a detailed description thereof will be omitted.

In addition, the guide member 430 may be provided with a drawing hole (not shown) through which the second fiber 12 is discharged.

In addition, the initial position of the second fiber 12 starting to be wound in one direction or the other direction of the mold 210 is fixed to the opposite surface of the fixing plate 230, and the bobbin part 300 is the length of the rotating shaft 220. A fixing member 231 may be provided to serve to fix the first fiber 11 at one end and prevent the second fiber 12 from unraveling when moving along the direction.

In this case, the guide member 430 can be detachably coupled to the moving frame 410 or its length can be adjusted as needed.

Then, a process of manufacturing the preform 10 using the fiber composite winding device 1 according to the present invention will be described with reference to FIGS. 6A to 6D.

First, referring to FIG. 6A, by sliding the bobbin ring 310 located on one side of the rotation shaft 220 to the other side (right side in the drawing) of the rotation shaft 220, a plurality of first fibers 11 are formed on the outer circumferential surface of the mold 210. is placed in the axial direction. In this case, the front end of the first fiber 11 may be fixed to one side of the rotating shaft 220 or to the outer circumferential surface of one side of the mold 210 .

Also, the bobbin ring 310 moved to the other side of the rotating shaft 220 is fixed to the other fixing plate 230 so as to be integrally rotatable with the mold 210 .

Then, as shown in FIG. 6B, power is supplied to rotate the rotary shaft 220 in one direction, and the mold 210 moves the winder unit 400 to the other side (right side in the drawing) of the rotary shaft 220. ) The second fiber 12 is primarily wound in a direction crossing the outer circumferential surface of the first fiber 11 disposed on the outer circumferential surface.

When the primary winding of the second fiber 12 is completed, the fixation of the bobbin ring 310 is released from the fixing plate 230 on the other side of the rotating shaft 220, and then the guide member 430 installed in the winder unit 400 And the fixing member 231 installed on the fixing plate 230 prevents the winding of the second fiber 12 from unraveling.

And, as shown in FIG. 6C, the bobbin ring 310 is slid to one side (left side in the drawing) of the rotating shaft 220 again. The bobbin ring 310 moving to one side of the rotating shaft 220 returns the plurality of first fibers 11 drawn from the first bobbin 320 in the outer circumferential axial direction of the primarily wound second fibers 12. place

Then, the bobbin ring 310 moved to one side of the rotating shaft 220 is fixed to the fixed plate 230 on one side of the rotating shaft 220 so as to be rotatable integrally with the mold 210 .

Then, as shown in FIG. 6D, power is supplied to rotate the rotating shaft 220 in one direction, and the winder unit 400 is moved to one side (left side in the drawing) of the rotating shaft 220 again to mold ( 210) The second fiber 12 is secondarily wound in a direction crossing the outer circumferential surface of the first fiber 11 disposed on the outer circumferential surface.

When the manufacturing process of the preform 10 is completed through the above winding process, the preform 10 (see FIG. 7) manufactured by separating the rotating shaft 220 and the mold 210 from the support 110 can be removed, Accordingly, the manufacturing process of the preform 10 using the fiber composite material winding device 1 according to the present invention is completed.

In this case, in the present invention, the first fiber 11 and the second fiber 12 are laminated twice each on the outer circumferential surface of the mold 210 using the bobbin part 300 and the winder part 400 to form the preform 10 Although illustrated and described as an example of the case of manufacturing, it is not limited thereto, and may be laminated two or more times if the structure of the preform 10 can be reinforced.

The fiber composite winding device 1 according to the present invention configured as described above enables to manufacture a pressure vessel, a tubular tube, a vehicle rim, etc. using the fiber composite material, but the first fiber disposed in the direction of the rotation axis 220 It is possible to reinforce the structure of the preform manufactured by going through a repetitive laminating process by winding the second fibers 12 on the outer circumference of the outer circumferential surface in a direction crossing the direction, thereby improving strength and durability. there is.

In addition, cost can be reduced by configuring the fiber composite material winding device 1 according to the present invention with a simple structure.

In the above, the present invention has been shown and described with specific specific examples, but the present invention is not limited to the above-described embodiments, and various changes and modifications are possible without departing from the technical spirit of the present invention.

1: fiber composite winding device 10: preform
11: first fiber 12: second fiber
100: body part 110: support
111: coupling hole 200: mandrel part
210: mold 211: first body
212: second body 220: rotation shaft
221: first rotation shaft 222: second rotation shaft
230: fixing plate 231: fixing member
300: bobbin part 310: bobbin ring
S: storage space 311: drawing hole
313: opening 320: first bobbin
330: sliding member 400: winder part
410: moving frame 420: second bobbin
430: guide member

Claims (10)

A body portion provided with at least one pair of supports;
a mandrel unit installed between the pair of supports and provided with a mold for manufacturing a preform rotatably coupled by receiving power;
It is coupled to be reciprocally movable along the longitudinal direction of the rotation shaft so that a plurality of first fibers can be disposed around the outer circumferential surface of the mold in parallel with the rotation shaft, and is fixed to the mandrel unit when the mandrel unit rotates and rotates integrally. bobbin part to do; and
It is installed on one side of the main body part in parallel with the rotational axis of the mandrel unit and is installed to be reciprocally movable along the longitudinal direction of the rotational shaft, and is installed on the outer circumferential surface of the first fiber disposed on the outer circumferential surface of the mold when the mandrel unit rotates. Including; a winder unit for winding the second fiber along the direction;
The mold,
Fiber composite winding device that can be removed from the preform, which has been manufactured, including being separated into two halves when the rotating shaft is separated from the support.
According to claim 1,
The mandrel part,
A pair of fixing plates installed oppositely and spaced apart from each other in the longitudinal direction of the rotating shaft with the mold interposed therebetween and rotating integrally with the rotating shaft; further comprising,
The fiber composite winding device is such that the bobbin unit can be fixed to the fixing plate after moving to one side or the other side of the rotating shaft.
delete According to claim 1,
On the joint surface of the bisected mold,
A fiber composite winding device comprising a coupling protrusion and a coupling groove correspondingly provided so as to be integrally rotated in a coupled state.
According to claim 2,
The bobbin part,
a hollow bobbin ring having an inner diameter larger than an outer diameter of the mold so as to be reciprocally movable along the longitudinal direction of the rotation shaft on which the mold is provided;
a plurality of first bobbins radially disposed spaced apart from the bobbin ring at a predetermined angle around the rotation axis and around which the first fibers are wound; and
It is coupled to the upper surface of the main body to be reciprocally movable along the longitudinal direction of the rotating shaft, and when the first fiber is placed in the mold, along the longitudinal direction of the rotating shaft while supporting the lower surface of the bobbin ring separated from the fixing plate. Fiber composite winding device comprising a; sliding member for moving.
According to claim 5,
The bobbin ring,
A fiber composite winding device that is detachably coupled to the fixed plate or sliding member via a fastening member.
According to claim 5,
The bobbin ring,
A fiber composite winding device having an opening for passing the second fiber on one side to prevent interference with the second fiber wound on the outer circumferential surface of the mold when reciprocating along the longitudinal direction of the rotation shaft.
According to claim 7,
The winder part,
a moving frame coupled to be reciprocally movable along the longitudinal direction of the rotating shaft;
a second bobbin provided on the moving frame and around which the second fiber is wound; and
It is coupled to the moving frame so as to protrude in a direction crossing the axis of rotation and is provided with a drawing hole for discharging the second fiber, so that the second fiber connected to the mold interferes with the edge of the opening when the bobbin ring moves. Fiber composite winding device comprising a; guide member to prevent.
According to claim 2,
On the opposite surface of the fixing plate,
It fixes the initial position of the second fiber, which starts winding in one direction or the other direction of the mold, and serves to fix the first fiber at one end when the bobbin moves along the longitudinal direction of the rotating shaft, and the second fiber is wound. A fiber composite winding device further comprising a fixing member for preventing unraveling of the fiber.
According to claim 1,
The first fiber and the second fiber,
A fiber composite winding device that is repeatedly laminated at least twice or more.

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