JPH0614975Y2 - Equipment for impregnating liquid fiber into reinforced fiber bundles - Google Patents

Description

[Detailed Description of the Invention] Industrial application The present invention is, for example, in a filament molding or a winding method (FW method) for molding a reinforced fiber synthetic resin pipe, a resin for a reinforced fiber bundle in which a reinforced fiber bundle is impregnated with a resin liquid. The present invention relates to a liquid impregnation device.

2. Description of the Related Art Conventionally, as shown in FIG. 12, a reinforcing fiber bundle 52 wound in a plurality of rolls is unwound from a roll 51 and guided into a resin liquid tank 54 via a plurality of guide rollers 53, A resin liquid impregnating device 56 is provided for a reinforcing fiber bundle to be impregnated into the reinforcing fiber bundle 52 moving in the resin liquid 55 in the tank 54. As a result, the impregnated reinforcing fiber bundle 52 is spirally wound around the outer peripheral surface of the cylindrical rotating die 57.

Problems to be Solved by the Invention The reinforcing fiber bundle 52 wound around the rotary mold 57 is a single fiber bundle formed by twisting a large number of ultrafine fibers, and this reinforcing fiber bundle 52 In order to impregnate the inside of the resin with the resin, it is necessary to immerse the resin in the resin liquid 55 in the liquid tank 54 for a certain period of time. Therefore, according to the conventional device, the reinforcing fiber bundle 52
The moving speed was up to 30 m / min, and the molding speed of the reinforced fiber resin tube was limited.

The present invention was made by paying attention to the fact that the permeation rate of the resin liquid into the reinforcing fiber bundle is increased by passing the reinforcing fiber through the resin liquid in a turbulent state. The moving speed of the reinforcing fiber bundle moving in the resin liquid in the resin liquid tank can be increased, and the resin liquid can be sufficiently permeated to the inside of the reinforcing fiber bundle,
Therefore, when this resin liquid impregnated reinforced fiber is used for resin tube molding by the FW method, it is an object of the present invention to provide a resin liquid impregnation device for a reinforced fiber bundle capable of significantly shortening the molding time.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention is to fit around the reinforcing fiber bundle in the lead-out path of the reinforcing fiber bundle passing through the resin liquid in the resin liquid tank. A cylindrical body having a lower end buried in the resin liquid and an upper end located above the liquid surface of the resin liquid, and a draining member attached to the upper end of the cylindrical body. The configuration is such that a device for promoting impregnation of the resin liquid is provided.

Action In the above configuration, the reinforcing fiber bundles drawn out from the resin liquid pass through the draining member at the upper end of the cylinder together with the resin liquid from the liquid surface of the resin liquid in the cylinder. At that time, a large amount of the resin liquid accompanies the reinforcing fiber bundle in proportion to its moving speed and rises. The resin liquid is blocked by the liquid draining member and drops again into the cylinder, but comes into contact with the rising liquid flow to generate a vortex, and a turbulent flow of the resin liquid is generated in the cylinder above the liquid surface. The reinforcing fiber bundle passes through this turbulent flow, and the penetration of the resin liquid into the reinforcing fiber bundle is greatly promoted.

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 FIG. 10 and FIG. 11, a resin pipe molding apparatus will be described. Reference numeral 1 denotes a storage shelf for reinforcing fibers, for example, glass fibers, in which a large number of long reinforcing fiber bundles 2 wound in a roll shape or a bobbin shape are stored and unwound from the storage shelf 1. Reference numeral 3 is a guide plate group for guiding the reinforcing fiber bundle 2, and at the rearmost portion thereof is a movable guide member 5 which reciprocates in parallel with the axis (a) of the rotary die 4 for molding the reinforcing fiber synthetic resin pipe, or A fixed guide member is provided. Reference numeral 6 denotes a movable gantry arranged between the guide plate group 3 and the rotary die 4, and a resin liquid impregnating device 7, a delivery guide member 8 and the like are provided on the gantry 6, and the rotary die shaft core is provided. It is configured to reciprocate on a rail member 9 arranged in parallel with (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 used as a rotary drive device.
The reinforced fiber synthetic resin pipe is molded by being spirally wound around the rotary mold 4 rotated by 10.

Next, the resin liquid impregnation device 7 and the delivery guide member 8 will be described with reference to FIGS. 1 to 9.

Reference numeral 11 denotes a resin liquid tank for impregnating the reinforcing fiber bundle 2 on the movable base 6 with the resin liquid. For example, an unsaturated polyester resin liquid which is a room temperature curable resin liquid 12 contains a small amount of a promoter (Co Addition of the additive is pumped from the storage tank 13 by a signal from a known liquid level sensor (not shown) or the like.
A predetermined amount is continuously supplied into the liquid tank 11 through the flexible hose 15 via 14.

Reference numeral 16 denotes an introduction roller arranged in front of the opening of the upper surface of the resin liquid tank 11 in parallel with the rotary shaft core (a), and has a large number of circumferential guide grooves 16a formed on its peripheral surface. The reinforcing fiber bundle 2 introduced from the movable guide member 5 via the introduction guide plate 17 is guided into the resin liquid 12 in the liquid tank 11 from between the groove portions 16a. 18
Is a turning roller disposed in the resin liquid 12 in the lower center of the liquid tank 11 in parallel with the rotary shaft core (a), and turns each reinforcing fiber bundle 2 from the introducing roller 16 upward in the rear part. A pair of side plates 19 hanging from both sides of the upper opening of the liquid tank 11.
Fixed to. 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 core (a), and guides the reinforcing fiber bundle 2 led out from the resin liquid 12 to the peripheral surface. A large number of circumferential guide grooves 20a are formed, and the roller bearing member 2
Fixed at 1.

Reference numeral 22 denotes a device for promoting impregnation of the resin liquid 12 provided in the route (b) for discharging the reinforcing fiber bundle 2 from the resin liquid 12, which is arranged in an inclined posture between the diversion roller 18 and the derivation roller 20. To be done. The impregnation accelerating device 22 is composed of a tubular body 23 fitted around the reinforced fiber bundle 2 to be drawn out, and a draining member 24 attached to the upper end of the tubular body 23. The tubular body 23 includes a pair of upper and lower upper plates 23a and 23b, and both side plates 19b.
Is formed into a rectangular tube shape, and the lower end of the tube body 23 is
It is buried inside and is opened behind the diverting roller 18, and the upper end portion is arranged at a position above the liquid surface 12a and facing the deriving 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 attached to the side plate 19 via the bolts 26 in the elongated holes 25a of the mounting plates 25 on both sides. It is attached. 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 attached to the upper end portions of the upper and lower plates 23a and 23b.
It is fixed by 8, and the rotary type shaft center (a) at the center of the opening of the cylindrical body 23.
The resin liquid-impregnated reinforced fiber bundle 2 passes through the abutting portions 29a to perform liquid draining. At that time, as shown in FIG. 3, the reinforcing fiber bundle 2 moving at a high speed.
The resin liquid adhering to is blocked by the silicone rubber plate 29 and flows backward, and a turbulent flow (c) is generated above the liquid surface in the cylindrical body 23 to promote penetration into the reinforcing fiber bundle 2. Reference numeral 30 denotes a liquid removing member which is arranged behind the lead-out roller 20 and in parallel with the rotary shaft center (a), and is a pair of prisms fixed to the roller bearing member 21 at a vertical position with a predetermined interval. The pedestal 31 and a rubber-like plate 32 attached to the facing surface of the pedestal 31 and having their tips facing each other and abutting against each other. Are removed. Reference numeral 33 denotes an intermediate roller which is arranged in parallel behind the liquid removing member 30 and which has a number of circumferential guide grooves 33a formed on its peripheral surface and guides the reinforcing fiber bundle 2.

Below the liquid removing member 30 and the intermediate roller 33, a liquid receiving member 11b that is inclined and continuous to the resin liquid tank 11 is provided.
The dropping resin liquid is configured to be returned into the liquid tank 11.

34 is a movement path (d) of the reinforcing fiber bundle 2 outside the rear part of the resin liquid tank 11
A hardener supply device disposed on the lower surface of the supply pipe, as shown in FIG. 4, having a plurality of hardener supply nozzles 35a on its lower surface and arranged in parallel with the rotary shaft core (a). 35, and a supply roller 36 arranged along the lower side of the supply pipe 35, supplies the curing agent from the nozzle 35a to the peripheral surface of the upper portion of the roller 36, and descends along the peripheral surface. At the same time, the reinforcing fiber bundle 2 impregnated with the resin liquid 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.
However, as shown in FIG. 5, the curing agent may be directly supplied to the reinforcing fiber bundle 2 from the nozzle 37a at the lower part of the supply pipe 37, and as shown in FIG. A spray device 38 may be provided above the moving path (d) of the bundle 2 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. 7 (a), (b) and (c), the delivery guide member 8 is a pair of upper and lower round bars arranged in parallel with the rotary type shaft core (a) at the rear part of the curing agent supplying device 34. It is composed of 40 and a plurality of pins 42 mounted between these round bars 40. The round bar 40 is a base frame 41 that supports the resin tank 11 at a predetermined interval in parallel with each other.
The pin 42 is fixed to the rod 40 through a support member 41a, and the pin 42 is formed in a groove 40 formed in the axial direction in the peripheral portions of the round bar 40 facing each other.
Inside a, guide ports 43 are formed which are fixed in the vertical direction at predetermined intervals l and guide the reinforcing fiber bundle 2 in an orderly manner.

The delivery guide member 8 may be a rod 40A in which pins 42A are implanted at predetermined intervals l as shown in FIG. 7 (d). Further, instead of the round bar 40 and the pin 42, as shown in FIG. 8, a circumferential guide groove 44a having a predetermined width and a predetermined depth is formed.
You may use the delivery roller 44 which has. Reference numeral 45 denotes a guide bar provided in the rear part of the feeding roller 40 and in parallel with the rotary shaft core (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
Guided by the guide plate 3a, from the movable guide member 5 to the movable mount 6
Sent to. 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 impregnation device 7, the reinforcing fiber bundle 2 is introduced from the introduction roller 16 into the resin liquid 12 in the resin liquid tank 11 below,
Be immersed. Reinforcing fiber bundle 2 led to the bottom of the resin liquid tank 11
Is turned upward by the turning roller 18 and impregnation promoting device
The guide roller 21 is introduced into the tubular body 23 of 22 and from the inside of the tubular body 23 via the contact portion 29a of the silicon rubber plate 29 of the liquid draining member 24.
Sent to.

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 pulled out from the liquid surface 12a of 12 at high speed (up to 100 m / min),
The resin liquid 12 in the cylindrical body 23 is blocked by the contact portion 29a of the liquid draining member 24.
A turbulent flow (C) of the resin liquid is generated on the liquid surface 12a. This turbulence
By (C), the penetration of the resin liquid into the reinforcing fiber bundle 2 is significantly promoted.

After that, the reinforcing fiber bundle 2 is removed from the guide roller 20 to remove the liquid.
The residual resin liquid is removed at 30 and 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, and the reinforcing fiber bundle 2 from the delivery roller 40 is 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.

Although the curing agent supply device 34 is provided in the rear portion of the resin liquid tank 11 in the above-described embodiment, the curing agent supply device 34 is not provided, and instead a curing agent supply pump is provided to cure the resin liquid tank 11. The curing agent may be pressure-fed, or the curing agent may be mixed into the resin liquid 12 immediately before the supply port to the resin liquid tank 11.

As described above, according to the present invention, a resin liquid impregnation promoting device composed of a tubular body and a draining member is provided in the path for delivering the reinforced fiber bundle from the resin liquid, and the lower end portion of the tubular body is provided with the resin liquid. Since it is embedded inside, the reinforced fiber bundle that moves in the cylinder is pulled out at high speed to generate a turbulent flow of the resin liquid in the cylinder, promoting the penetration of the resin liquid into the reinforced fiber bundle, and The reinforcing fibers can be sufficiently impregnated with the resin liquid even when moving through the inside at a high speed. Therefore, when this apparatus is used for molding a resin pipe by the FW method, the molding time of the pipe can be significantly shortened.

[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 plane of a resin liquid tank. Fig. 3 is a side sectional view showing an impregnation promoting device, Fig. 4 is a cutaway perspective view showing a hardening agent supplying device, and Figs. 5 and 6 show other embodiments of the hardening agent supplying device. Perspective view, Fig. 7 (a) (b)
(c) is a partially enlarged front view showing the delivery guide member,
A side sectional view and a cutaway perspective view, FIG. 7 (d) is a partial front view showing another embodiment of the delivery guide member, and FIGS. 8 (a) and (b) are still other embodiments of the delivery guide member. FIG. 9 is a partially enlarged front view and a side cross-sectional view, FIG. 9 is a schematic perspective view showing a pipe molding portion, and FIGS. 10 and 11 are overall side views and overall plan views showing a resin pipe molding apparatus. FIG. 7 is a schematic explanatory view showing a conventional example. 2 ... Reinforcing fiber bundle, 4 ... Rotation type, 6 ... Movable platform, 7
...... Resin liquid impregnation device, 18 …… Rolling roller, (b) …… Fiber bundle delivery path, (c) …… Turbulent flow, 20 …… Leading roller, 22
...... Impregnation promoting device, 23 …… Cylinder, 24 …… Draining member, 29
...... Silicon rubber plate, 29a …… Abutting part.

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A reinforcing fiber bundle passing through the resin liquid in a resin liquid tank is fitted around the reinforcing fiber bundle, the lower end portion of which is embedded in the resin liquid and the upper end portion. A resin liquid impregnation promoting device comprising a cylindrical body arranged so that is located above the liquid surface of the resin liquid, and a draining member attached to the upper end of the cylindrical body. Equipment for impregnating fiber bundles with resin liquid.