JPH0615028Y2 - Molding equipment for reinforced fiber synthetic resin pipes - Google Patents

Description

[Detailed Description of the Invention] Industrial Application The present invention is a filament for molding a reinforced fiber synthetic resin pipe,
The present invention relates to a molding apparatus for a reinforced fiber synthetic resin pipe by a winding method (FW method).

2. Description of the Related Art Conventionally, as shown in FIG. 11, a reinforcing fiber bundle 52 wound into a plurality of rolls is unwound from a roll 51 and guided into a resin liquid tank 54 through a plurality of guide rollers 53, Provided is a molding apparatus for a reinforced fiber synthetic resin pipe, which is provided with a reinforced fiber bundle impregnating device for impregnating a reinforced fiber bundle (52) moving in a resin liquid (55) in a tank (54). The reinforcing fiber bundle 52 impregnated by the resin liquid impregnation device 56 is spirally wound around the outer peripheral surface of the cylindrical rotating die 57. As the resin liquid 55, for example, a liquid resin such as unsaturated polyester mixed with a curing agent is used, and the curing agent is supplied at the same time as the liquid resin is supplied to the resin liquid tank 54, or the liquid resin is liquid immediately before. A mixture of resin and a curing agent is supplied to the resin liquid tank 54.

Problems to be Solved by the Invention According to the above-mentioned conventional apparatus, when the hardening material is mixed with the room temperature hardening type resin, the resin solution 55
Even if the residence time is within the curing time at which the resin is cured, the resin liquid 55 starts to cure from the corner portion in the liquid tank 54 due to the residual resin and the curing agent partially during the impregnation of the reinforcing fiber 52, and It sometimes hinders long-term use.

An object of the present invention is to provide a resin liquid impregnating device for a reinforced fiber for resin pipe molding, which can prevent curing of the resin liquid in the resin liquid tank and can use the resin liquid for a long time. Especially.

Means for Solving the Problems The present invention for solving the above problems is to provide a reinforced fiber synthetic resin pipe by a filament winding method in which a reinforced fiber bundle impregnated with a resin is wound around a rotary mold to form a resin pipe. In the molding device, the room-temperature curable resin liquid is stored on a movable gantry that is movable in the axial direction of the rotary type on the reinforced fiber bundle moving path that moves the reinforced fiber bundle fed from the original fiber of the reinforced fiber. The reinforcing fiber bundle is made into resin by the introduction roller that introduces the reinforcing fiber bundle into the resin liquid from the material side into the resin liquid tank, the turning roller that is arranged in the resin liquid, and the discharge roller that is arranged outside the liquid. A guide means for the reinforcing fiber bundle to be passed through the liquid for impregnation, a means for promoting impregnation of the resin liquid arranged at the resin liquid outlet of the reinforcing fiber bundle in the resin liquid tank, and arranged behind the lead-out roller. Being reinforced fiber A resin liquid removing means for removing excess resin liquid from the bundle, a curing agent supplying means for supplying a curing agent to the reinforcing fiber bundle after passing through the resin liquid outside the resin liquid tank, and a reinforcing fiber bundle to be wound around the rotary mold. And the delivery guide means to be arranged in order from the original side.

Further, the resin liquid impregnating means having the above-mentioned structure is provided with a tubular body having a lower end portion buried in the resin liquid and an upper end portion located on the resin liquid surface on the route of leading out from the resin liquid, and an upper end of the tubular body. And a liquid draining member attached to the section.

Further, the curing agent supply means having the above-mentioned configuration is provided along the rotation type axial center direction, along with a curing agent supply pipe having a plurality of supply nozzle openings formed on the lower surface, and below the curing agent supply pipe. The reinforcing fiber bundle is arranged so that the reinforcing fiber bundle is in contact with the lower peripheral surface of the hardener supply roller.

Furthermore, instead of the curing agent supply means having the above-described configuration, a curing agent spray device that sprays the curing agent from above the moving path of the reinforcing fiber bundle is configured.

Action In the above configuration, the reinforcing fiber bundle fed from the original fabric is guided by the introducing roller of the guide means of the reinforcing fiber bundle on the movable base and introduced into the resin liquid in the resin liquid tank, and further by the turning roller. It is turned around, passes through the resin liquid, and is led out to the lead-out roller via the liquid impregnation promoting means. Then, after the excess resin liquid impregnated in the reinforcing fiber bundle is removed by the liquid draining means, the curing agent is supplied to the reinforcing fiber bundle by the curing agent supply means, and the reinforcing fiber bundle is further supplied by the delivery guide means. The resin tube is formed by being guided in an orderly manner and wound into a rotary type, and the reinforcing fiber bundle is wound around the entire circumference of the rotary type as the movable base moves.

According to the above-described embodiment, the reinforcing fiber bundle can be passed through the resin liquid by the roller of the guiding means to be impregnated, and the liquid impregnation promoting means can effectively impregnate. Further, since the supply means for supplying the curing agent to the reinforcing fiber bundle after impregnation with the resin solution is provided, it is not necessary to mix the curing agent into the resin solution in the resin solution tank as in the conventional case, and the curing agent can be mixed. Therefore, even if it is a room temperature curable resin liquid, the resin liquid does not start to cure early during the impregnation of the reinforcing fibers in the liquid tank, and can be used for a long time. Then, after removing the excess resin liquid adhered to the reinforcing fiber bundle by the liquid draining means, the curing agent is supplied to the reinforcing fiber bundle by the curing agent supply means, so that the curing agent is added to the resin liquid of the reinforcing fiber bundle. It can be sufficiently permeated to promote the reaction. Further, by the delivery guide means, the reinforcing fiber bundle supplied with the curing agent can be aligned and wound around the rotary mold. Therefore, the reinforced fiber synthetic resin pipe can be efficiently molded.

Further, by constructing the resin liquid impregnating means in the above configuration with the cylindrical body and the liquid draining member, the excess resin liquid attached to the reinforcing fiber bundles moving at high speed is blocked by the liquid draining member and flows backward. However, a turbulent flow is generated above the liquid surface in the cylinder to promote the penetration into the reinforcing fiber bundle.

Furthermore, by configuring the curing agent supply means in the above configuration with a curing agent supply pipe in which a supply nozzle port is formed, and a curing agent supply roller, the reinforcing fiber bundle after resin impregnation,
Since the curing agent is supplied in contact with the lower surface of the supply roller on which the curing agent flows down from the supply nozzle port along the outer peripheral surface, the reinforcing fiber bundle impregnated with the resin can be uniformly supplied without being damaged.

Furthermore, by using a curing agent spray device instead of the curing agent supply unit having the above-described configuration, the curing agent can be uniformly supplied to the reinforcing fiber bundle without contact.

Example Hereinafter, a molding apparatus for a reinforced fiber synthetic resin pipe, which is one example of the present invention, will be described.

First, referring to FIGS. 9 and 10, a resin pipe molding apparatus will be described. Reference numeral 1 denotes a storage shelf for reinforcing fibers 2, for example, glass fibers, in which a large number of long reinforcing fiber bundles 2 wound in a roll or bobbin are stored and unwound from the storage shelf 1. Reference numeral 3 denotes a guide plate group for guiding the reinforcing fiber bundle 2, and at the rearmost portion thereof, a movable guide member 5 that reciprocates in parallel with the axis (a) of the rotary die 4 for molding the reinforcing fiber synthetic resin tube, or A fixed guide member is provided.
Reference numeral 6 denotes a movable base arranged between the guide plate group 3 and the rotary die 4, and a resin liquid impregnation device 7 and a delivery guide member (outlet guide means) 8 are provided on the base 6. , Is configured to reciprocate on a rail member 9 arranged parallel to the rotary shaft center (a) by a well-known driving means (not shown). A large number of reinforcing fiber bundles 2 sent out from the movable mount 6 are rotated by a rotary type driving device 10 and then a rotary type 4
And a reinforced fiber synthetic resin pipe is molded by spirally winding.

Next, the resin liquid impregnating device 7 and the delivery guide member 8 will be described with reference to FIGS.

Reference numeral 11 denotes a resin liquid tank for impregnating the reinforcing fiber bundle on the movable frame 6 with the resin liquid. The unsaturated polyester resin liquid, which is a room temperature curable resin liquid 12, contains a small amount of a promoter (Co addition compound). ) Has been added, a predetermined amount is continuously supplied from the storage tank 13 through the flexible hose 15 via the pump 14 to the liquid tank 11 by a signal from a known liquid level sensor (not shown) or the like. It

Reference numeral 16 denotes an introduction roller disposed in front of the opening of the upper surface of the resin liquid tank 11 in parallel with the rotary shaft center (a), and has a large number of circumferential guide grooves 16a formed on its peripheral surface. , Movable guide member 5
The reinforcing fiber bundle 2 introduced from the above through the introduction guide plate 17 is guided into the resin liquid 12 in the liquid tank 11 from between the groove portions 16a. 1
8 is the rotary shaft center (a) in the resin liquid 12 in the lower center of the liquid tank 11.
A turning roller arranged in parallel with the introducing roller
The reinforced fiber bundle 2 from 16 is turned to the upper rear,
A pair of side plates hanging from both sides of the upper opening of the liquid tank 11.
Fixed at 19. Reference numeral 20 denotes a lead-out roller disposed in the rear portion of the upper opening of the liquid tank 11 in parallel with the rotary shaft center (a),
A large number of circumferential guide grooves 20a for guiding the reinforcing fiber bundles 2 derived from the resin liquid 12 are formed on the peripheral surface, and are fixed to the roller bearing member 21. The introducing roller 16, the diverting roller 18, and the deriving roller 20 constitute a reinforcing fiber bundle guide means.

Reference numeral 22 denotes an impregnation promoting device (impregnation promoting means) for the resin liquid 12 which is provided in the route (b) for discharging the reinforcing fiber bundle 2 from the resin liquid 12, and is provided between the turning roller 18 and the leading roller 20. It is placed in a tilted position. The impregnation accelerating device 22 is composed of a tubular body 23 fitted around the guided reinforcing fiber bundle 2 and a draining member 24 attached to the upper end of the tubular body 23. The tubular body 23 is formed into a rectangular tubular shape by a pair of upper and lower surface plates 23a and 23b and the side plates 19, and the lower end portion of the tubular body 23 is buried in the resin liquid 12 and is diverted. The roller 18 is opened rearward of the working roller 18, and the upper end portion is arranged at a position above the liquid surface 12a and facing the lead-out roller 20. The lower plate 23b is fixed to the roller bearing member 21 along the rear bottom plate 11a of the liquid tank 11, and the upper plate 23a is a long hole 2 of the mounting plate 25 on both sides.
It is attached to the side plate 19 through the bolt 26 on the 5a. Reference numeral 27 is a round bar-shaped guide member fixed to the lower surface plate 23b in the cylindrical body 23. The liquid draining member 24 is fixed to the upper end portions of the upper and lower plates 23a, 23b by a mounting member 28, and the tips of the liquid draining member 24 face each other at the center of the opening of the tubular body 23 along the direction of the rotary shaft center (a). The resin liquid-impregnated reinforcing fiber bundle 2 passes through the abutting portion 29a for draining. At that time, as shown in FIG. 3, the excess resin liquid adhering to the reinforced fiber bundles 2 moving at high speed is blocked by the silicone rubber plate 29 and flows backward, and a turbulent flow (above the liquid surface in the cylinder 23 ( C) is generated to promote penetration into the reinforcing fiber bundle 2. Reference numeral 30 denotes a liquid removing member (resin liquid removing means) disposed in the rear of the lead-out roller 20 in parallel with the rotary shaft center (a) and fixed to the roller bearing member 21 at a vertical position with a predetermined interval. It is composed of a pair of prismatic pedestals 31 and a rubber plate 32 attached to the opposing surfaces of the pedestals 31 and having tip portions facing and abutting each other. The reinforcing fiber bundle 2 is attached to the abutting portion 32a. The residual resin liquid is removed by passing. Reference numeral 33 denotes an intermediate roller that is arranged in parallel behind the liquid removing member 30, and has a number of circumferential guide grooves 33a formed on the circumferential surface, and guides the reinforcing fiber bundle 2.

A liquid receiving member 11b that is inclined and continuous to the resin liquid tank 11 is provided below the removing member 30 and the intermediate roller 33, and is configured to return the falling resin liquid into the liquid tank 11.

34 is a curing agent supply device (curing agent supply means) disposed in the movement path (d) of the reinforcing fiber bundle 2 outside the rear part of the resin liquid tank 11.
As shown in FIG. 4, a supply pipe 35 having a large number of hardening agent supply nozzle openings 35a on its lower surface and arranged in parallel with the rotary shaft center (a), and below this supply pipe 35. It is composed of a supply roller 36 arranged along the side, supplies the curing agent from the nozzle opening 35a to the peripheral surface of the upper portion of the roller 36 and lowers it along the peripheral surface. The reinforcing fiber bundle 2 is brought into contact with the lower peripheral surface of the roller 36 to supply the curing agent. This hardener consists of peroxide.

The hardener supply device 34 includes a supply pipe 35 and a supply roller.
36, but as shown in FIG. 5, reinforcing fiber bundle 2
The spray device 38 may be provided above the moving path (d) of (3) and the curing agent may be sprayed and supplied.

Below the curing agent supply device 34, a receiving tank 39 that receives the excess curing agent falling is provided to prevent the curing agent from mixing into the resin liquid tank 11.

As shown in FIGS. 6 (a), (b) and (c), the delivery guide member 8 has a rotary shaft center (a) at the rear of the hardener supply device 34.
A pair of upper and lower round bars 40 arranged in parallel with each other, and these round bars 40
And a plurality of pins 42 mounted between the two. The round rods 40 are fixed in parallel to each other with a predetermined space therebetween to a base frame 41 supporting the resin tank 11 via a support member 41a, and the pins 42 are axially arranged in the peripheral portions of the round rods 40 facing each other. Guide grooves 43, which are fixed in the vertical direction at predetermined intervals l and which guide the reinforcing fiber bundle 2 in an orderly manner, are formed in the grooves 40a formed in.

The delivery guide member 8 may be a rod 40A in which pins 42A are implanted at predetermined intervals l as shown in FIG. 6 (d). Further, instead of the round bar 40 and the pin 42, a circumferential guide groove formed to have a predetermined width and a predetermined depth as shown in FIG.
A delivery roller 44 having 44a may be used. Reference numeral 45 denotes a guide bar provided at the rear part of the feeding roller 40 in parallel with the rotary shaft center (a).

Next, the operation of the molding apparatus for the reinforced fiber synthetic resin pipe will be described. The reinforcing fiber bundle 2 unwound from the storage shelf 1
It is guided by the guide plate 3 a and sent from the movable guide member 5 to the movable mount 6. The reinforcing fiber bundle 2 guided by the introduction guide plate 17 of the movable frame 6 is introduced into the resin liquid impregnation device 7. In this resin liquid impregnating device 7, the reinforcing fiber bundle 2 is introduced from the introducing roller 16 into the resin liquid 12 in the resin liquid tank 11 below and immersed therein. The reinforcing fiber bundle 2 guided to the bottom of the resin liquid tank 11 is turned upward by the turning roller 18 and introduced into the tubular body 23 of the impregnation promoting device 22.
The silicone rubber plate 29 of 24 is sent to the lead-out roller 21 via the contact portion 29a.

In this impregnation promoting device 22, the reinforcing fiber bundle 2 is made of resin liquid.
A large amount of resin liquid is entrained and lifted by being drawn out from the liquid surface 12a of 12 at a high speed (maximum 100 m / min), and is blocked by the abutting portion 29a of the liquid draining member 24. A turbulent flow (C) of the resin liquid is generated on the liquid surface 12a.
This turbulent flow (C) significantly promotes the penetration of the resin liquid into the reinforcing fiber bundle 2. That is, a greater penetration effect can be obtained as compared with the case where the resin liquid is simply guided between the conventional guide rollers.

After that, the reinforcing fiber bundle 2 is removed from the discharge roller 20 by the liquid removing member 30.
The residual resin liquid is removed by and is sent to the intermediate roller 33.

Next, the reinforcing fiber bundle 2 is sent to the curing agent supply device 34,
An appropriate amount of curing agent is supplied. Further, the reinforcing fiber bundle 2 sent to the sending roller 40 is guided to be aligned at the guide port 43 and sent to the rotary die 4.

The movable pedestal 6 provided with the upper receiving guide plate 17, the resin liquid impregnating device 7, and the delivery guide member 8 reciprocates on the rail member 9 to move the reinforcing fiber bundle 2 from the delivery roller 40 as shown in FIG. The rotary die 4 is spirally wound around
A reinforced fiber synthetic resin tube 46 is formed on the outer peripheral portion of the.

Effects of the Invention According to the present invention as described above, the reinforcing fiber bundle can be impregnated by passing through the resin liquid by the roller of the guide means and can be effectively impregnated by the liquid impregnation promoting means. Further, since the supply means for supplying the curing agent to the reinforcing fiber bundle after impregnation with the resin solution is provided, it is not necessary to mix the curing agent into the resin solution in the resin solution tank as in the conventional case, and the curing agent can be mixed. Therefore, even if it is a room temperature curable resin liquid, the resin liquid does not start to cure early during the impregnation of the reinforcing fibers in the liquid tank, and can be used for a long time. Then, after removing the excess resin liquid adhered to the reinforcing fiber bundle by the liquid draining means, the curing agent is supplied to the reinforcing fiber bundle by the curing agent supply means, so that the curing agent is added to the resin liquid of the reinforcing fiber bundle. It can be sufficiently permeated to promote the reaction.
Further, by the delivery guide means, the reinforcing fiber bundle supplied with the curing agent can be aligned and wound around the rotary mold.
Therefore, the reinforced fiber synthetic resin pipe can be efficiently molded.

[Brief description of drawings]

1 to 11 show a molding apparatus for a reinforced fiber synthetic resin pipe according to an embodiment of the present invention. FIG. 1 is a side sectional view showing a resin liquid impregnating device, and FIG. 2 is a resin liquid tank. Fig. 3 is a plan view, Fig. 3 is a side sectional view showing an impregnation promoting device, Fig. 4 is a cutaway perspective view showing a hardener supply device, and Fig. 5 is a perspective view showing another embodiment of the hardener supply device. 6 (a), (b) and (c) respectively show a partially enlarged front view, a side sectional view and a cutaway perspective view showing a delivery guide member, and FIG. 6 (d) shows another embodiment of the delivery guide member. Partial front view, FIGS. 7 (a) and 7 (b) are partially enlarged front views and side cross-sectional views showing still another embodiment of the delivery guide member, and FIG. 8 is a schematic perspective view showing a pipe forming part, 9 and 10 are overall side view and overall plan view showing the resin pipe molding apparatus, and FIG. 11 is a schematic explanatory view showing a conventional example. 2 ... Reinforcing fiber bundle, 4 ... Rotation type, 6 ... Movable platform, 7
…… Resin liquid impregnation device, 11 …… Resin liquid tank, 12 …… Resin liquid,
16 …… Introduction roller, 18 …… Turning roller, (d) ……
Fiber bundle movement path, 20 ... Delivery roller, 33 ... Intermediate roller, 34 ... Curing agent supply device, 35 ... Supply pipe, 35a ... Supply nozzle port, 36 ... Supply roller.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masaki Ishikawa 1-6-14 Edobori, Nishi-ku, Osaka-shi, Osaka Prefecture Hitachi Shipbuilding Co., Ltd. (56) Reference JP-A-53-17664 (JP, A)

Claims (4)

[Scope of utility model registration request] 1. A molding apparatus for a reinforced fiber synthetic resin pipe by a filament winding method, wherein a reinforced fiber bundle impregnated with a resin is wound around a rotary mold to mold a resin pipe, and a reinforced fiber fed from a raw fiber of the reinforced fiber. Reinforcing fibers that move the bundle A bundle of movable fibers that move freely in the axial direction of the rotary type on the bundle moving path, a resin liquid tank that stores the resin liquid that is room temperature curable, and a reinforcing fiber from the original side into the resin liquid. A guiding means for the reinforcing fiber bundle, which introduces the bundle, a diverting roller arranged in the resin liquid, and a deriving roller arranged outside the liquid to allow the reinforcing fiber bundle to pass through the resin liquid for impregnation. The resin liquid removal for removing excess resin liquid from the reinforcing fiber bundle, which is arranged behind the resin liquid impregnation promoting means arranged at the resin liquid outlet of the reinforcing fiber bundle in the resin liquid tank and the lead-out roller, Means and above A hardening agent supply means for supplying a hardening agent to the reinforcing fiber bundle after passing through the resin solution on the outside of the resin liquid tank, and a delivery guide means for guiding the reinforcing fiber bundle to be wound around the rotary mold are sequentially arranged from the original side. Molding equipment for reinforced fiber synthetic resin pipes. 2. A cylindrical body having a lower end portion buried in the resin liquid and an upper end portion located on the resin liquid surface, and a top end of the cylindrical body, the impregnating means for the resin liquid being on a route from the resin liquid. A molding device for a reinforced fiber synthetic resin pipe according to claim 1, characterized in that it is configured with a liquid draining member attached to the section. 3. A hardener supply pipe having hardener supply means arranged along the axial direction of the rotary type and having a plurality of supply nozzle openings formed on the lower surface, and along the lower side of the hardener supply pipe. Molding of a reinforced fiber synthetic resin pipe according to claim 1 or 2, characterized in that the reinforced fiber bundle is arranged with a hardening agent supplying roller in contact with the lower peripheral surface. apparatus. 4. The utility model registration claim characterized in that the curing agent supply means is constituted by a curing agent spray device for spraying the curing agent from above the moving path of the reinforcing fiber bundle.
Item 2. A molding apparatus for a reinforced fiber synthetic resin pipe according to Item 2 or Item 2.