JPH10337787A - Fiber reinforced resin pipe molding equipment - Google Patents

Abstract

(57) [Problem] To provide a molding apparatus for a fiber reinforced resin pipe capable of switching the type of fiber in a short time and performing composite molding. SOLUTION: Storage shelves 6 for storing reinforcing fibers 2 and 4 are vertically arranged in two stages, and each reinforcing fiber 2 and 4 guided from each storage shelf 6 via each guide member 3 and 5 is introduced into each introduction member 17. , 2
6, each immersion guide member 18, 27, each lead-out member 19,
28, and the comb-tooth members 25 are arranged vertically so that the reinforcing fibers 2 and 4 overlap each other and are wound around the rotary mold 7, so that a composite of different materials can be obtained. When the resin tube of the reinforcing fiber 2 is manufactured and subsequently the resin tube of the reinforcing fiber 4 of a different type is manufactured, the reinforcing fiber 2 is stored only in one of the upper and lower storage shelves 6. By manufacturing the resin tube in advance and storing the reinforcing fiber 4 in the other of the storage shelves 6 and guiding the reinforcing fiber 4 to the guide member 5 during the manufacturing, the type of fiber can be switched in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for forming a fiber reinforced resin pipe by a filament winding method.

[0002]

2. Description of the Related Art As shown in FIG. 6, a conventional apparatus 50 for forming a fiber-reinforced resin tube by a filament winding method comprises a plurality of reinforcing fibers (for example, glass fibers) 51 wound in a roll or bobbin. A storage shelf 53 that can be fed out through a guide member 52 and a rod-shaped rotary mold 54 that rotates and drives around a horizontal axis (a drive device is not shown) at a distance from the storage shelf 53 A tube forming apparatus 55 for forming a resin tube by spirally winding a reinforcing fiber bundle (eg, glass roving) 51 impregnated with resin on the outer peripheral portion of the rotary mold 54, The reinforcing fiber bundle 51 fed out of the storage shelf 53 is impregnated with a resin liquid (for example, a thermosetting resin liquid such as unsaturated polyester) 56 between the pipe forming apparatus 55 and the pipe forming apparatus 55. Send to 5 fiber impregnated guide device 57
It is composed of

[0003] The fiber impregnation guide device 57 includes a guide rail 58 laid along the axial direction of the rotary mold 54.
A traveling platform 60 movably arranged via traveling wheels 59 and reciprocated at a predetermined speed by a driving device (not shown) is provided on the traveling platform 60. A resin liquid tank 61 for storing the liquid 56 is provided. Further, on the storage shelf 53 side on the upper surface of the resin liquid tank 61, an introduction member 62 for guiding each reinforcing fiber bundle 51 in a horizontal direction and at a constant interval from each other is provided.
Inside, there is provided a dipping guide member 63 for guiding the reinforcing fiber bundle 51 guided through the introduction member 62 into the tank. Further, a liquid draining member 64 is provided on the upper surface of the resin liquid tank 61 slightly near the tube forming device 55. The liquid draining member 64 has a pair of upper and lower support members 64 whose length direction is parallel to the length direction of the immersion guide member 63.
a, 64b, spacers (not shown) fixed at both ends between the support members 64a, 64b, and a pair of upper and lower silicon rubbers 65 inserted at respective ends where the upper and lower support members 64a, 64b face each other. , 66, a gap L is provided between the upper and lower silicone rubbers 65, 66, and the reinforcing fiber bundle 5 impregnated with the resin liquid 56 is provided.
1 is introduced into the gap L via the immersion guide member 63 so that the excess resin liquid 56 is removed. A comb-shaped member 67 for aligning the reinforcing fiber bundles 51 guided via the liquid draining member 64 is provided on the upper surface of the resin liquid tank 61 and between the liquid draining member 64 and the pipe forming device 55. Each of the reinforcing fibers 51 from which the excess resin liquid 56 has been removed is configured to be uniformly wound around the outer peripheral surface of the rotary mold 54 of the tube forming device 55 through the comb teeth member 67.

According to such a conventional configuration, the rotary mold 5
4 and the traveling table 60 is reciprocated at a predetermined speed, the plurality of reinforcing fiber bundles 51 drawn out from the storage shelf 53 first become the immersion guide member 63 of the fiber impregnation guide device 57 and the introduction member. The resin liquid 56 is introduced into the resin liquid tank 61 through 62 and is impregnated with the resin liquid 56. Next, the reinforcing fiber bundle 51 is introduced into the gap L of the liquid draining member 64 to remove the excess resin liquid 56, and passes through the comb tooth member 67 and is spirally and uniformly formed on the outer peripheral surface of the rotary mold 54. It is wound. In addition, according to the required wall thickness (tube thickness) of the tube to be manufactured,
The above steps are repeatedly performed.

When the reinforcing fiber 51 to be formed is changed from, for example, glass fiber to carbon fiber, the glass fiber is first switched to a guide member 52, an introduction member 62, an immersion guide member 63, a liquid drain member 64, and a comb tooth member. 67, detaching from the rotating mold 54, and then replacing the glass fiber in the storage shelf 53 with carbon fiber, and then setting the carbon fiber in each of the members 52, 62, 63, 64, 67 and the rotating mold 54. Can be switched by.

[0006]

However, according to the above-described fiber reinforced resin tube molding apparatus, when the type of fiber is switched (for example, from glass fiber to carbon fiber),
After stopping the forming device, all fibers (eg, glass fibers) must be removed from the forming device, and then a different type of fiber (eg, carbon fiber) must be reset to the entire forming device. The longer you put it,
Further, there is a problem that composite molding such as a combination of glass fiber and carbon fiber cannot be performed.

Accordingly, an object of the present invention is to provide a fiber-reinforced resin pipe molding apparatus capable of switching the type of fiber in a short time and performing composite molding.

[0008]

According to a first aspect of the present invention, there is provided a fiber-reinforced resin pipe molding apparatus for accommodating a plurality of reinforcing fiber bundles via a guide member. A resin liquid for impregnating a plurality of reinforcing fiber bundles with resin on a storage shelf, a rotating mold rotated about a horizontal axis, and a traveling table reciprocated along the axial direction of the rotating mold. A fiber impregnating guide device having a tank, the fiber impregnating guide device includes an introduction member for guiding the reinforcing fiber bundle fed out of the storage shelf, and the reinforcing fiber bundle passing through the introduction member through the resin liquid. An immersion guide member for guiding the inside of the tank, a lead-out member for guiding the reinforcing fiber bundle guided through the immersion guide member to the outside of the resin liquid tank, and a reinforcing fiber bundle guided through the lead-out member. Liquid draining member to remove excess resin liquid A comb-teeth member having a comb-teeth portion for aligning the reinforcing fiber bundles guided through the liquid draining member, respectively. The reinforcing fiber bundle guided through the comb-teeth members is supplied to the rotary mold. In a molding device for molding a wound fiber reinforced resin tube, a first reinforcing fiber bundle and a second reinforcing fiber bundle are arranged on the storage shelf so as to be able to be fed out,
The guide member, the introduction member, the immersion guide member, the lead-out member, and the comb tooth member are arranged in pairs so that the first and second reinforcing fiber bundles can be separately guided, and at least the two comb teeth are provided. The members are arranged vertically so that the first reinforcing fiber bundle and the second reinforcing fiber bundle overlap each other and are wound around a rotary mold.

According to the fiber reinforced resin pipe molding apparatus,
When the rotary mold is rotated and the traveling table is reciprocated at a predetermined speed, first, the first reinforcing fiber bundle and the second reinforcing fiber bundle respectively fed out from the storage shelf through a pair of guide members are formed of fibers. The resin liquid is introduced into the resin liquid tank via each immersion guide member and each introduction member of the impregnation guide device, and is impregnated with the resin liquid. Next, each of the reinforcing fiber bundles is introduced into the liquid draining member through each of the lead-out members to remove excess resin liquid. Wrapped around each other.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An apparatus for forming a fiber reinforced resin pipe by a filament winding method according to an embodiment of the present invention will be described below with reference to the drawings.

That is, as shown in FIG. 1, a fiber reinforced resin tube forming apparatus 1 according to the present invention comprises a plurality of first reinforcing fibers (for example, glass fibers) wound in a roll or bobbin shape on the lower side. 2 are fed out via a first guide member 3 that guides each of the first reinforcing fibers 2 in a horizontal direction and at a constant interval from each other.
A plurality of upper and lower stages of storage in which a plurality of second reinforcing fibers (for example, carbon fibers) 4 wound in the same manner as in (1) are fed out via second guide members 5 that guide each of them in a horizontal direction and at regular intervals. The shelves 6 and the reinforcing fiber bundles (eg, glass rovings) 2 and 4 impregnated with the resin are spirally wound around the outer periphery of a rod-shaped rotary mold 7 that rotates around a horizontal axis at a distance from the storage shelf 6. By winding it into a shape,
The first reinforcing fiber bundle 2 and the second reinforcing fiber bundle 4 fed from the storage shelf 6 are filled with a resin liquid between the tube forming device 8 for forming the resin pipe and the storage shelf 6 and the tube forming device 8. (For example, a heat-curable resin liquid such as unsaturated polyester) 9 is impregnated with a fiber impregnation guide device 1 which is sent to a tube forming device 8.
0.

As shown in FIG. 2, each of the guide members 3 and 5 has a rod-like member 3a, 5a provided in parallel with the axial direction of the rotary mold 7, and a length of the rod-like member 3a, 5a. A plurality of concave guides 3b, 5b which are provided at predetermined intervals in the vertical direction and guide the reinforcing fibers 2, 4;
Each reinforcing fiber 2, 4 is provided at the opening end of the
c and 3c, 5c for preventing them from jumping out of b, 5b. The claws 3c, 5c are constantly biased toward the guides 3b, 5b.
It is configured to be swingable manually at the time of replacement. At least the guides 3b and 5b are formed of ceramic.

The fiber impregnation guide device 10 is shown in FIGS.
As shown in the figure, the driving die (not shown) reciprocates at a predetermined speed by a driving device (not shown) and is movably disposed on a guide rail 11 laid along the axial direction of the rotary mold 7 by running wheels 12. A traveling platform 13, a traveling frame 15 provided on the traveling platform 13 and holding a resin liquid tank 14,
A support frame 16 provided in the traveling frame portion 15 and having a substantially rectangular shape in a plan view, and an introduction member, an immersion guide member, a lead-out member, a liquid drainage member, and a comb tooth member provided at various positions of the support frame 16 ( Each of them will be described later).

On the storage shelf 6 side of the support frame 16, each of the first
A first introduction member 17 for guiding the reinforcing fiber bundles 2 in a horizontal direction and at a constant interval from each other is provided, and the first introduction member 17 includes a rod-like member 17a, It comprises a concave guide part 17b and a claw part 17c, and at least the guide part 17b is formed of ceramic. A support plate 16a is provided from the support frame 16 toward the inside of the resin liquid tank 14, and the support plate 16a
The first immersion guide member 18 provided in each of the first guide members 18 is configured to guide each first reinforcing fiber bundle 2 guided through the first introduction member 17 into the tank. The support frame 16
On the side of the tube forming device 8, there is provided a first lead-out member 19 for guiding the first reinforcing fiber bundle 2 guided via the first immersion guide member 18 to the tube forming device 8 side. The first
The immersion guide member 18 and the first lead-out member 19 are configured to guide the respective first reinforcing fiber bundles 2 in the horizontal direction and at a constant interval from each other. Specifically, the first immersion guide member 18 and the first lead-out member 19
As shown in FIG. 3, the stepped shaft is formed such that the concave portions 18a, 19a and the convex portions 18b, 19b are repeated at regular intervals in the longitudinal direction thereof.
Each of the first reinforcing fibers 2 is slid and guided by a.

As shown in FIG. 4, a liquid draining member 20 is provided on the support frame 16 slightly closer to the tube forming device 8 than the first lead-out member 19. The liquid draining member 20 includes a pair of upper and lower support members 20a and 20b whose length direction is parallel to the length direction of the first lead-out member 19;
spacers 21 and 22 fixed at both ends between a and 20b
And a pair of upper and lower silicone rubbers 2 inserted into respective ends of the pair of upper and lower support members 20a and 20b facing each other.
3 and 24, a gap S is provided between the upper and lower silicone rubbers 23 and 24, and the first reinforcing fiber bundle 2 impregnated with the resin liquid 9 is interposed through the first lead-out member 19. It is configured such that the excess resin liquid 9 introduced into the gap S is removed.

Then, as shown in FIG. 5, the upper and lower two-stage comb-tooth members having comb-tooth portions 25a and 25b for aligning the first reinforcing fiber bundle 2 are provided on the tube forming device 8 side of the support frame 16, as shown in FIG. The first reinforcing fiber bundle 2 provided with the resin liquid 9 and having the excess resin liquid 9 removed passes through the lower comb teeth portion 25b and is uniformly formed on the outer peripheral surface of the rotary mold 7 of the tube forming apparatus 8. It is configured to be wound.

On the storage shelf 6 side of the support frame 16 and slightly above the first introduction member 17, a second introduction member for guiding each second reinforcing fiber bundle 4 in a horizontal direction and at a constant interval from each other. The second introduction member 26 includes a rod-like member 26a, a concave guide portion 26b, and a claw portion 26c, similarly to the first introduction member 17, and at least the guide portion 26b is made of ceramic. It is molded (see FIG. 2). Further, in the resin liquid tank 14, a second immersion guide member 27 for guiding the second reinforcing fiber bundle 4 guided through the second introduction member 26 into the tank is formed by a second immersion guide member of the support plate portion 16a. The second immersion guide member 2 is provided slightly above the first immersion guide member 18 and slightly above the first lead-out member 19 on the tube forming apparatus 8 side of the support frame 16.
A second lead-out member 28 for guiding the second reinforcing fiber bundle 4 guided through 7 to the tube forming device 8 side is provided. The second immersion guide member 27 and the second lead-out member 28
Has the same configuration as the first immersion guide member 18 and the first lead-out member 19, and is provided so as to guide the second reinforcing fiber bundles 4 in the horizontal direction and at a constant interval from each other (FIG. 3). reference).

Further, the second reinforcing fiber bundle 4 impregnated with the resin liquid 9 is supplied to the liquid draining member 2 via a second lead-out member 28.
In the gap S of 0, the first reinforcing fiber bundle 2 is alternately introduced to remove the excess resin liquid 9 (FIG. 4).
reference). Each of the second reinforcing fiber bundles 4 from which the excess resin liquid 9 has been removed passes through the upper comb teeth portion 25a of the comb tooth member 25 (see FIG. 5), and the rotation of the rotary mold 7 of the tube forming apparatus 8 is performed. The first reinforcing fiber bundle 2 is configured to be spirally double-wound and uniformly wound around the outer periphery of the first reinforcing fiber bundle 2 along the outer peripheral surface.

According to the above embodiment, when the rotary mold 7 is driven to rotate and the traveling platform 13 is reciprocated at a predetermined speed, first, the first guide member 3 and the second guide are moved from the upper and lower storage shelves 6. The first reinforcing fiber bundle 2 and the second reinforcing fiber bundle 4 respectively fed out through the member 5 are connected to the first immersion guide member 18 and the first introduction member 17 of the fiber impregnation guide device 10 and the second immersion member. The resin liquid 9 is introduced into the resin liquid tank 14 via the guide member 27 and the second introduction member 26 and impregnated with the resin liquid 9.

Next, the first reinforcing fiber bundle 2 and the second reinforcing fiber bundle 2
The reinforcing fiber bundle 4 is alternately introduced into the gap S of the liquid draining member 20 via the first lead-out member 19 and the second lead-out member 28 to remove the excess resin liquid 9, and then the comb-tooth member 25 Are spirally and uniformly wound around the outer peripheral surface of the rotary mold 7 while passing through the upper and lower comb teeth portions 25a and 25b. The desired fiber-reinforced resin pipe can be obtained by continuing the above-described steps along a reciprocating path along the outer peripheral surface of the rotary mold 7 according to the required thickness (plate thickness) of the pipe to be manufactured. That is, by using glass fiber as the first reinforcing fiber 2 and carbon fiber as the second reinforcing fiber 4, a composite fiber reinforced resin tube composed of glass fiber and carbon fiber can be obtained. Of course, the arrangement of the upper and lower stages of the glass fiber and the carbon fiber may be reversed. Further, composite molding using various combinations such as a combination other than glass fiber and carbon fiber, for example, a combination of carbon fiber and aramid fiber can be performed.

By the way, in the above embodiment, the composite molding using different kinds of fibers has been described.
A resin tube can be formed using the same fiber. That is, double winding of the same fiber can be formed. As described above, when a resin pipe having the same thickness is manufactured, the manufacturing process is reduced to about half as compared with the conventional example, so that the manufacturing time, that is, the manufacturing cost can be reduced.

When a resin tube is manufactured using the first reinforcing fibers 2 and then a resin tube is manufactured using different types of second reinforcing fibers 4, the upper and lower storage shelves 6 may be used. The first reinforcing fiber 2 is stored in only one of them, and a resin pipe is manufactured. During the production of the first reinforcing fiber 2 resin tube, the second reinforcing fiber 4 is stored in the other of the storage shelves 6 and guided by the guide member 5.
When the production of the resin tube of the first reinforcing fiber 2 is completed,
After the entire forming apparatus 1 is stopped and the first reinforcing fibers 2 are removed from the predetermined members and the rotary mold 7, the second reinforcing fibers 4 are guided to the predetermined members and attached to the rotary mold 7. Thereby, switching from the first reinforcing fiber 2 to the second reinforcing fiber 4 can be performed. Therefore, the molding apparatus 1 of the present invention can reduce the stop time of the entire apparatus 1 as compared with the conventional example in which it takes time to replace the storage shelves while the apparatus is stopped, and thus the switching operation can be performed quickly. Can do.

As described above, the fiber reinforced resin pipe molding apparatus 1 according to the present embodiment can switch the type of fiber and perform composite molding in a short time. In the above embodiment,
The guide members 3 and 5, the introduction members 17 and 26, the immersion guide members 18 and 27, and the lead members 19 and 28 are configured to slide and guide the reinforcing fiber bundles 2 and 4, respectively. Each member may be a rotatable roller type to guide the reinforcing fiber bundles 2 and 4.

In the above-described embodiment, the first reinforcing fiber bundle 2 and the second reinforcing fiber bundle 4 are alternately introduced into the one-stage liquid draining member 20. , The first reinforcing fiber bundle 2 may be introduced into the lower drainage member, and the second reinforcing fiber bundle 4 may be introduced into the upper drainage member.

[0025]

According to the molding apparatus of the present invention, the type of fiber can be switched in a short time, so that the time can be reduced as compared with the conventional molding apparatus, and the production cost can be reduced. Further, since the reinforcing fibers can be composite-molded in various combinations, a fiber-reinforced resin pipe having higher strength can be manufactured.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an apparatus for forming a fiber-reinforced resin pipe according to an embodiment of the present invention.

FIG. 2 is a main part perspective view showing a guide member and an introduction member of a reinforcing fiber bundle in the molding apparatus.

FIG. 3 is a plan view of a main part of a fiber impregnation guide device in the molding device.

FIG. 4 is a view taken in the direction of arrows AA in FIG. 1;

FIG. 5 is a view taken in the direction of arrows BB in FIG. 1;

FIG. 6 is a cross-sectional view of a conventional apparatus for forming a fiber-reinforced resin tube.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Forming apparatus 2 1st reinforcing fiber 3 1st guide member 4 2nd reinforcing fiber 5 2nd guide member 6 Storage shelf 7 Rotating die 8 Tube forming apparatus 9 Resin liquid 10 Fiber impregnation guide apparatus 13 Travel stand 14 Resin liquid Tank 17 First introduction member 18 First immersion guide member 19 First derivation member 20 Drainer 25a Upper comb teeth 25b Lower comb teeth 25 Comb members 26 Second introduction member 27 Second immersion guide Member 28 Second derived member

Claims (1)

[Claims] 1. A storage shelf for accommodating a plurality of reinforcing fiber bundles through a guide member so as to be able to be fed out, a rotating mold rotated about a horizontal axis, and an axial direction of the rotating mold. A fiber impregnation guide device having a resin liquid tank for impregnating the resin into a plurality of reinforcing fiber bundles on a reciprocating traveling platform, wherein the fiber impregnation guide device is provided with a reinforcing fiber fed out of a storage shelf. An introduction member for guiding the fiber bundle, a immersion guide member for guiding the reinforcing fiber bundle into the resin liquid tank via the introduction member, and a resin solution for guiding the reinforced fiber bundle guided via the immersion guide member. A lead-out member that guides the outside of the tank, a drainage member that removes excess resin liquid of the reinforcing fiber bundle guided through the lead-out member, and a reinforcing fiber bundle that is guided through the drainage member are aligned. A comb member having a comb portion; Wherein the reinforcing fiber bundle guided through the comb-tooth member is wound around the rotary mold to form a fiber-reinforced resin tube. The storage shelf includes a first reinforcing fiber bundle and a second reinforcing fiber bundle. The reinforcing fiber bundle is arranged so as to be able to be fed out, and the guide member, the introduction member,
The immersion guide member, the lead-out member, and the comb-tooth member are arranged in a pair so that the first and second reinforcing fiber bundles can be separately guided, respectively. An apparatus for forming a fiber-reinforced resin tube, wherein a reinforcing fiber bundle and a second reinforcing fiber bundle are arranged vertically so as to overlap each other and be wound around a rotary mold.