KR102127894B1 - Facility for manufacturing the composite pressure vessel - Google Patents

Abstract

The present invention provides an apparatus for manufacturing a composite pressure vessel, the apparatus comprising: a rotating liner; a horizontal base guide spaced apart from the liner and extending along an axis direction of the liner; a carriage advancing or retreating along the horizontal base guide; a fiber transfer device affixed to the carriage to transfer, to the liner, carbon fiber or glass fiber filaments introduced from carbon fiber or glass fiber bobbins; a resin bath affixed to the carriage and positioned between the fiber transfer device and the carbon fiber or glass fiber bobbins, or between the fiber transfer device and the liner, to impregnate the carbon fiber or glass fiber filaments supplied to the liner with a resin, thereby causing the carbon fiber or glass fiber filaments to be wound around the liner while being impregnated with the resin; and a control device for adjusting, in connection with the number of rotation of the liner, a fiber speed of the carbon fiber or glass fiber filaments being supplied to the liner. Accordingly, the apparatus can actualize a high-speed winding of 50 m/min or more in the fiber speed of a carbon fiber roving.

Description

{Facility for manufacturing the composite pressure vessel}

The present invention relates to an apparatus for manufacturing a composite material pressure vessel, and more particularly, to a composite material pressure vessel manufacturing apparatus capable of high-speed production.

There are three main methods of producing composite material pressure vessels. Carbon fiber, glass fiber fabric or carbon fiber, glass fiber roving, non-woven fabric and resin put into mold and centrifugal casting to harden, carbon fiber, glass fiber roving while impregnating resin with mandrel or Filament winding and curing by winding on the liner, carbon fiber prepreg impregnated with resin in glass fiber roving, and glass fiber prepreg winding on a mandrel or liner and curing And so on.

In the conventional filament winding composite material pressure vessel production method, the carbon fiber and glass fiber rovings have a constant tension by the speed of a mandrel or liner that rotates while impregnating the resin in a resin bath with carbon fiber and glass fiber roving. This is a method of curing after winding on a mandrel or liner. In this method, when the winding speed is increased to increase productivity with a lot of carbon fiber and glass fiber roving of 10 to 50 strands, the fiber may slip on the mandrel or liner due to excessive tension, or the impregnation of the resin may occur. Due to the problem of causing the pressure vessel to deteriorate, it is generally necessary to produce a long time by producing less than 10 strands and less than 30m/min. Therefore, the conventional method has a fatal disadvantage in that it is impossible to produce a composite pressure vessel at a competitive price required by customers in the market because it cannot produce at a pressure of 40 to 70 m/min or more when producing a pressure vessel.

Korea Registered Patent No. 10-0270090

An object of the present invention is to provide a composite material pressure vessel manufacturing apparatus capable of high-speed production.

According to an aspect of the present invention, the present invention is fixed to the rotating liner, a horizontal base guide spaced apart from the liner and extending along the axial direction of the liner, a carriage moving forward or backward along the horizontal base guide, and the carriage , A fiber transfer device for moving carbon fiber or glass fiber filaments flowing from carbon fiber or glass fiber bobbins to the liner, fixed to the carriage, located between the fiber transfer device and the carbon fiber or glass fiber bobbins, , Located between the fiber transfer device and the liner, by impregnating the carbon fiber or glass fiber filaments supplied to the liner, the carbon fiber or glass fiber filaments are impregnated with the resin to the liner The pressure vessel of the composite material comprising a control device for controlling the fiber speed of the carbon fiber or glass fiber filaments supplied to the liner by interlocking with the rotation speed of the liner and the resin bath for winding. Provide a manufacturing apparatus.

According to another aspect of the present invention, the present invention is fixed to the rotating liner, a horizontal base guide spaced apart from the liner and extending along the axial direction of the liner, a carriage moving forward or backward along the horizontal base guide, and the carriage , Fixed to the fiber transport device and the carriage for moving the carbon fiber or glass fiber filaments flowing from the carbon fiber or glass fiber bobbins to the liner, or located between the fiber transport device and the carbon fiber or glass fiber bobbins, , Located between the fiber transfer device and the liner, by impregnating the carbon fiber or glass fiber filaments supplied to the liner, the carbon fiber or glass fiber filaments are impregnated with the resin to the liner A device for manufacturing a pressure vessel for a composite material including a resin bath for winding, and interlocking with the number of revolutions of the liner, to adjust the fiber speed of the carbon fiber or glass fiber filaments supplied to the liner. Provides

The apparatus for manufacturing a pressure vessel for a composite material of the present invention has the following effects.

First, it is possible to realize high-speed winding with a carbon fiber roving speed of 50 m/min or more.

Second, it is possible to manufacture a composite material pressure vessel inexpensively using only carbon fiber filaments.

Third, since only one curing process can be performed, the composite material pressure vessel can be manufactured, thus reducing production time and production cost.

1 is a schematic configuration diagram of a composite pressure vessel manufacturing apparatus according to an embodiment of the present invention.
2 is a schematic plan view showing the configuration between the liner, the horizontal base guide and the carriage of the composite pressure vessel manufacturing apparatus according to FIG.
Figure 3 is a schematic view showing a state in which the fiber filaments are formed on the outer circumferential surface of the liner while the liner is rotated in a state where the liner and the vise are combined and the liner and the vise of the composite pressure vessel manufacturing apparatus according to FIG.
4 is a schematic side configuration diagram of a fiber supply device of the composite material pressure vessel manufacturing apparatus according to FIG. 1.
5 is a schematic plan view of the fiber supply device of the composite material pressure vessel manufacturing apparatus according to FIG. 4.
FIG. 6 is a schematic longitudinal cross-sectional view of a composite pressure vessel prior to curing being molded with the composite pressure vessel manufacturing apparatus according to FIG. 1.
7 is a schematic side view showing a state in which the release film in FIG. 6 is wound in a spiral direction.
FIG. 8 is a photograph showing a smooth appearance of the composite material pressure vessel manufactured by the apparatus for manufacturing the composite material pressure vessel shown in FIG. 1.

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

The apparatus for manufacturing a composite material pressure vessel (hereinafter referred to as “manufacturing device”) 100 according to an embodiment of the present invention manufactures a composite material pressure vessel, but the present invention is not limited thereto.

1 to 3, the manufacturing apparatus 100 includes liners 191 and 192, a horizontal base guide 155, a carriage 150, a fiber conveying device 140, a resin bath 130 and control It includes a device (not shown).

The liners 191 and 192 have a cylindrical structure, but have a hemisphere shape in which one end in the axial direction and the other end opposite to each other protrude. In this embodiment, the protruding hemisphere shape is a structure in which the width becomes narrower toward the direction away from the center of the liners 191 and 192, and the cross section is circular. In addition, bosses 191a are formed at the centers of one end and the other end of the liners 191 and 192 to connect to a vise capable of rotating the liners 191 and 192, respectively. The boss 191a protrudes from the centers of one end and the other end of the liners 191 and 192, and the inner side is a hollow structure and a thread is formed on the inner side. In this embodiment, one side is further connected to the boss (191a) and the other side is connected to a chuck (chuck) formed in the vise. The connecting member is screwed with the boss 191a, and chucked with the vise. That is, the liners 191 and 192 are coupled to the connecting member using the boss 191a, and the connecting member is integrally rotated by being engaged with the chuck of the vise. In FIG. 3, one side of the liners 191 and 192 is coupled to the vise and a rotating state coupled to the vise. In FIG. 3, only one side of the liners 191 and 192 is illustrated, but the other side, which is the opposite side, rotates through the same structure and coupling.

And, when the resin-impregnated fiber filaments 114 through the resin bath 130 is wound on the outer peripheral surface of the liner 191, 192, the resin-impregnated fiber filaments 114 are the liner 191, It winds at a faster speed when winding in a portion inclined with respect to the axial direction than when winding in a portion parallel to the axial direction of 192). Particularly, when winding along a portion inclined with respect to the axial direction around the boss 191a of the liners 191 and 192 toward a portion parallel to the axial direction, the winding speed is reduced while winding. Conversely, when winding from the portion parallel to the axial direction of the liners 191 and 192 toward the boss 191a along a portion inclined with respect to the axial direction, winding is performed while increasing the winding speed.

When the resin-impregnated fiber filaments 114 are wound at a portion inclined with respect to the axial direction in the liners 191 and 192, the winding is more precise by a slip phenomenon than when winding at a portion parallel to the axial direction. This can be difficult. Therefore, when winding on a portion inclined with respect to the axial direction, the tension is increased to adjust the winding speed to prevent slipping.

In addition, when winding the resin-impregnated fiber filaments 114 on a portion inclined with respect to the axial direction of the liners 191 and 192, at least one of two portions in which the winding direction of the liners 191 and 192 changes. The side part is wound around the part parallel to the axial direction (see Fig. 2). This is because when the resin-impregnated fiber filaments 114 are wound only at portions inclined with respect to the axial direction in the liners 191 and 192, the resin-impregnated fiber filaments 114 are difficult to slip and hard to wind. Because. Therefore, it is possible to change the winding angle when winding at a constant angle, and then winding the inclined portion of the liners 191 and 192 relative to the axial direction.

The liners 191 and 192 are formed of a plastic material. However, the present invention is not limited to this, and the material of the liners 191 and 192 can be changed to metal or other materials. As the liners 191 and 192 rotate, resin-impregnated fiber filaments 114 through the resin bath 130 form outer circumferential surfaces of the liners 191 and 192.

The liners 191 and 192 have two identical structures spaced apart in the vertical direction, and rotate at the same rotational speed. At this time, the liners 191 and 192 rotate while the position is fixed to the structure, but the liners 191 and 192 may rotate or move forward or backward along the axial direction. In this embodiment, the number of the liners 191 and 192 is two, but one or three or more can be variously selected.

The horizontal base guide 155 is spaced forward from the side surfaces of the liners 191 and 192. The position of the horizontal base guide 155 is fixed and extends in the same width along the axial direction of the liners 191 and 192. The distance between the horizontal base guide 155 and the side surfaces of the liners 191 and 192 is kept constant.

The carriage 150 linearly moves forward or backward along the horizontal base guide 155. That is, the carriage 150 is movable along the axial direction of the liners 191 and 192. The carriage 150 is provided with the fiber transfer device 140 and the resin bath 130, so that the fiber transfer device 140 and the resin bath 130 together with the movement of the carriage 150 Move.

The fiber transport device 140 performs a function of moving the fiber filaments 112 flowing from the fiber bobbins 111 of the fiber supply device 110 to the liners 191 and 192. In the present embodiment, the fiber filaments 112 flowing from the fiber bobbins 111 are exemplified as carbon fiber filaments flowing from the carbon fiber bobbins. However, the present invention is not limited to this, and the fiber filaments 112 flowing from the fiber bobbins 111 can be changed to glass fiber filaments flowing from the glass fiber bobbins. In addition, some of the fiber bobbins 111 are carbon fiber bobbins and some are glass fiber bobbins, so two fibers may be mixed. In addition, various other composite materials may be applied. A pair of combs 120 are disposed between the carbon fiber bobbins 111 and the fiber transfer device 140. One comb 122 is installed on the carriage 150, and the other comb 121 is also disposed near the carbon fiber bobbins 111. The combs 121 and 122 function to prevent the strands of the carbon fiber filaments 112 from sticking together.

4 and 5, the fiber transfer device 140 includes a first driving roller 141, a second driving roller 142, a compression roller (compaction roller, 143), guide rollers (144, 145), It includes a drive motor 147 and a power transmission mechanism 148. The first driving roller 141 and the second driving roller 142 are horizontally spaced apart from each other along the supply direction of the carbon fiber filament 112. The pressure roller 143 is located at the center of the first driving roller 141 and the second driving. Accordingly, the first driving roller 141, the second driving roller 142, and the pressing roller 143 form an isosceles triangle (especially an equilateral triangle) structure.

The driving motor 147, the first driving roller 141 and the second driving roller 142 are rotated. The power transmission mechanism 148 is connected to the drive motor 147 to convert the rotational force of the drive motor 147 to the rotational force of the first drive roller 141 and the second drive roller 142. . For the power transmission mechanism 148, various known power transmission mechanisms such as a gear mechanism, a belt/pulley mechanism, and the like can be selected.

The pressure roller 143 is an idle roller that can be positioned in the vertical direction. The vertical position of the pressing roller 143 is the tension of the carbon fiber filaments 112 transferred between the first driving roller 141, the second driving roller 142, and the pressing roller 143. However, it is determined by the fiber speed of the carbon fiber filaments 112, and at this time, the force for pressing the pressure roller 143 is also determined.

The guide rollers 144 and 145 are disposed with the pressing roller 143 interposed therebetween to guide the tension or supply direction of the supplied carbon fiber filaments 112.

The resin bath (resin bath, 130) is located between the fiber transfer device 140 and the liner (191, 192), the carbon fiber filaments (112) supplied to the liner (191, 192) Impregnate the resin. However, the resin bath 130 may be located between the fiber transfer device 140 and the carbon fiber bobbins 111.

The cajon fiber filaments 112 are made of carbon fiber filaments 114 impregnated with resin through the resin bath 130, and the liners 191 and 192 by eye rotations 160. It is adjusted to be wound at a set angle. Two eye rotations 160 are arranged to correspond to the two liners 191 and 192. Therefore, the resin-impregnated carbon fiber filaments 114 are wound on the two liners 191 and 192 at the same time. The winding angle may be variously set, and in this embodiment, the resin-impregnated carbon fiber filaments 114 are alternately wound at 45 degrees and -45 degrees to form a basic structure layer (L1). To do. Thereafter, the resin-impregnated carbon fiber filaments 114 are wound close to 90 degrees to form a flap shape layer (L2) (see FIG. 6).

The control device (not shown) adjusts the fiber speed of the carbon fiber filaments 112 supplied to the liners 191 and 192 in conjunction with the number of revolutions of the liners 191 and 192. . Conventionally, the carbon fiber filaments are supplied by the rotational force of the liner. Therefore, after the carbon fiber filaments are impregnated with resin, the resin impregnated carbon fiber filaments are very difficult to transport, and a problem occurs that is cut by applying excessive tension to the resin impregnated carbon fiber filaments or the carbon fiber filaments. There is a problem that it is difficult to impregnate sufficient resin in the field. In addition, there is a problem that static electricity is also largely generated. In particular, when winding the resin-impregnated carbon fiber filaments on two or more liners, there is a problem that control becomes more difficult.

However, if the number of revolutions of the liners 191 and 192 is increased in this embodiment, the number of revolutions of the drive motor 147 is increased, so that the first driving roller 141 and the second driving roller 142 are increased. The number of revolutions of is increased. Therefore, the supply speed of the carbon fiber filaments 112 of the fiber transfer device 140 increases. In particular, if the surface rotational speed of the first driving roller 141 and the second driving roller 142 is the surface of the liners 191 and 192 (or the resin-impregnated carbon fiber filaments 114 are wound) , Other surface), 0.5% to 1.5% lower than the rotational speed. That is, the carbon fiber filaments 112 make the first driving roller 141 and the second driving roller 142 have very weak slip motion, thereby increasing the tension of the carbon fiber filaments 112. Keep it.

In the above, although the control device (not shown) operates the liners 191 and 192 and the driving motor 147 in cooperation, the present invention is not limited thereto. That is, the device for controlling the liners 191 and 192 and the device for controlling the drive motor 147 are independently installed, and the operator for controlling the liners 191 and 192 and the drive motor 147 It is also possible to adjust the setting value of another control device in association with the setting value of any one of the devices that control.

The carriage 150 is provided with a UV shield sheet supply device 170. The ultraviolet ray shielding sheet supply device 170, after the basic structural layer (L1) is formed on the liner (191, 192), the direction of the ultraviolet ray shielding sheet (175) again on the liner (191, 192) Performs the winding function. In this embodiment, the UV shielding sheet 175 is a state in which a UV shielding material and a resin are impregnated into a nonwoven fabric, and is wound on a roller, and is wound in a spiral direction to the liners 191 and 192 (see FIG. 6 ). ). The UV shielding sheet supply device 170 is installed in two companies to correspond to the liners 191 and 192, but the present invention is not limited thereto. In addition, the material of the ultraviolet ray shielding sheet 175 is not limited to the above.

A release film supply device 180 is fixed to the carriage 150. The release film supply device 180 is located on the opposite side of the UV shielding sheet supply device 170 with the eye rotation 160 interposed therebetween. The release film supply device 180, after the UV shielding layer (L3) is formed by the UV shielding sheets 175, winding the release film 185 on the liner (191, 192) in a spiral direction It performs the function of forming the release film layer (L4) (see Fig. 6). Since the release film 185 has a smooth surface, when removed after the curing process, a spiral-like appearance is formed along the circumferential direction with traces of the release film on the surface. Therefore, the appearance of the composite material pressure vessel may have a beautiful shape (see FIG. 8). Two of the release film supply devices 180 are installed to correspond to the liners 191 and 192, but the present invention is not limited thereto. Also, the material of the release film 185 is not limited to the above.

The manufacturing method of the composite material pressure vessel using the manufacturing apparatus 100 is as follows.

First, the liners 191 and 192 are rotated, and the fiber conveying device 140 is operated in conjunction with the liners 191 and 192, so that the basic structure layer L1 is attached to the two liners 191 and 192. ) At the same time. The eye rotations 160 are adjusted while reciprocating the carriage 150 to form a surface layer L2 on the basic structural layer L1. In the state in which the curing process is not performed, the UV shielding sheet 175 is wound on the surface layer L2 in the spiral direction to form the UV shielding layer L3. Thereafter, the release film 185 is wound by the ultraviolet shielding layer L3 to form a release film layer L4. Then, the release film 185 is heated to a temperature that does not melt to perform a curing process. Thereafter, the release film 185 is removed to complete the composite material pressure vessel.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

100: composite material pressure vessel manufacturing apparatus
110: fiber feeder
120: comb
130: resin bath
140: fiber conveying device
150: carriage
155: horizontal base guide
160: eye rotation
170: UV shielding sheet supply device
180: release film supply device
191, 192: liner
191a: Boss

Claims (7)

A rotating liner;
A horizontal base guide spaced apart from the liner and extending along the axial direction of the liner;
A carriage that moves forward or backward along the horizontal base guide;
A fiber transfer device fixed to the carriage and moving carbon fiber or glass fiber filaments flowing from carbon fiber or glass fiber bobbins to the liner;
The carbon fiber or glass fiber filaments fixed to the carriage and positioned between the fiber transfer device and the carbon fiber or glass fiber bobbins, or between the fiber transfer device and the liner, are supplied to the liner. A resin bath for impregnating the resin to wind the liner while the carbon fiber or glass fiber filaments are impregnated with the resin; And
It includes a control device for adjusting the fiber speed of the carbon fiber or glass fiber filaments supplied to the liner in conjunction with the number of revolutions of the liner,
Eye rotation which is fixed to the carriage and adjusted so that the carbon fiber or glass fiber filaments soaked in the resin are wound on the liner at a set angle;
After being fixed to the carriage and the resin-impregnated carbon fiber or glass fiber filaments are wound, for UV shielding, the UV shielding sheets are supplied to the liner to wind the UV shielding sheet in the spiral direction again. Sheet feeder; And
After being fixed to the carriage, the eye rotation (eye rotation) is located on the opposite side of the UV shielding sheet supply device, and after the UV shielding sheets are wound, the liner release film again in the spiral direction Further comprising a release film supply device for supplying the release film for winding,
The UV shielding sheet supply device and the release film supply device are operated before the curing process is performed on the resin-impregnated carbon fiber or glass fiber filaments wound on the liner,
Composite material pressure vessel manufacturing equipment. A rotating liner;
A horizontal base guide spaced apart from the liner and extending along the axial direction of the liner;
A carriage that moves forward or backward along the horizontal base guide;
A fiber transfer device fixed to the carriage and moving carbon fiber or glass fiber filaments flowing from carbon fiber or glass fiber bobbins to the liner; And
The carbon fiber or glass fiber filaments fixed to the carriage and positioned between the fiber transfer device and the carbon fiber or glass fiber bobbins, or between the fiber transfer device and the liner, are supplied to the liner. And a resin bath that impregnates the resin and winds the liner while the carbon fiber or glass fiber filaments are impregnated with the resin.
In conjunction with the number of revolutions of the liner, the fiber speed of the carbon fiber or glass fiber filaments supplied to the liner is adjusted,
Eye rotation which is fixed to the carriage and adjusted so that the carbon fiber or glass fiber filaments soaked in the resin are wound on the liner at a set angle;
After being fixed to the carriage and the resin-impregnated carbon fiber or glass fiber filaments are wound, for the purpose of UV shielding, the UV shielding sheets are supplied to the liner to wind the UV shielding sheet in the spiral direction again. Sheet feeder; And
After being fixed to the carriage, the eye rotation (eye rotation) is located on the opposite side of the UV shielding sheet supply device, and after the UV shielding sheets are wound, the liner release film again in the spiral direction Further comprising a release film supply device for supplying the release film for winding,
The UV shielding sheet supply device and the release film supply device are operated before the curing process is performed on the resin-impregnated carbon fiber or glass fiber filaments wound on the liner,
Composite material pressure vessel manufacturing equipment. The method according to claim 1 or claim 2,
The liner,
Although having a cylindrical structure, one end in the axial direction and the other end opposite to each other are formed in the form of a protruding hemisphere, and a boss is formed at the center of the protruding hemisphere to engage a vise for rotating the liner. ,
Composite material pressure vessel manufacturing equipment. The method according to claim 3,
The boss,
The inner side has a hollow structure, but a thread is formed on the inner side to screw-couple the vise,
Composite material pressure vessel manufacturing equipment. The method according to claim 1 or claim 2,
The fiber transport device,
A first driving roller and a second driving roller spaced apart from each other horizontally along the supply direction of the carbon fiber or glass fiber filaments;
And a pressure roller positioned on the first driving roller and the second driving roller,
One or both of the first driving roller and the second driving roller are rotated by a driving source, and are driven in conjunction with the number of revolutions of the liner.
The pressure roller is an idle roller that is position-adjustable along the vertical direction,
Composite material pressure vessel manufacturing equipment. delete The method according to claim 1 or claim 2,
Two or more liners are disposed along the vertical direction,
It is fixed so as to correspond to the respective liners in the carriage, and includes eye rotations to adjust so that the carbon fiber or glass fiber filaments impregnated with the resin are simultaneously wound at the same set angle and the same position on each liner,
Composite material pressure vessel manufacturing equipment.

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