JPH0331337B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an apparatus for manufacturing a fiber-reinforced resin pipe by winding glass fiber impregnated with a resin liquid around a rotary main body.

BACKGROUND ART Conventionally, as shown in FIG. 12, a long glass fiber 2 wound around a core material 1 is unwound and guided into a resin liquid tank 4 via a plurality of guide rollers 3. A resin liquid-impregnated glass fiber 3 is wound around the outer circumferential surface of a rotary mold 5 rotating in the direction of arrow A to form a fiber-reinforced resin tube 6, and then the rotary mold 5 is removed from the drive shaft and placed in the bed as shown in FIG. Then, the claw 9 provided at the tip of the piston rod of the cylinder 8 is engaged with the end of the fiber-reinforced resin tube 6, and then the piston rod of the cylinder 8 is contracted and the fiber-reinforced resin tube 6 is moved in the direction indicated by the arrow. Push out in direction B and rotate mold 5
It is released from the mold.

Problems to be Solved by the Invention According to the above-mentioned conventional structure, in order to release the fiber reinforced resin tube 6 from the rotary mold 5, the rotary mold 5 is removed from the drive shaft and placed on the bed 7. It takes time and effort to attach and detach the mold 5, and space for the bed 7 must be secured. More nails 9
Since the fiber-reinforced resin tube 6 is forcibly extruded, the ends and inner peripheral surface of the fiber-reinforced resin tube 6 are easily damaged.

Means for Solving the Problems In order to solve the above-mentioned problems, the fiber-reinforced resin pipe manufacturing apparatus of the present invention is provided with a rotating body for forming a cylindrical fiber-reinforced resin pipe whose base end is fixed to a drive shaft. Sprocket wheels are arranged at appropriate intervals along the circumferential direction at the base end and tip of the rotary body, respectively, and an endless chain is installed between the sprocket wheels facing each other along the axial direction of the rotary body. A flexible plate for covering the outer peripheral surface of the rotating type body is attached to each chain, and a first flexible plate is attached to one side edge of each plate.
In addition to forming an engaging part, a second engaging part is formed on the other side edge to engage with the first engaging part of the adjacent plate when the plate is in a position facing the outer circumferential surface of the rotary main body, and a suitable sprocket is formed. A plate driving device is provided that moves each plate from a position facing the inner circumferential surface of the rotary body to a position facing the outer circumferential surface thereof by rotating a wheel in one direction, and covers the outer circumferential surface of the rotary body. A resin liquid-impregnated glass fiber supply device is provided for supplying resin liquid-impregnated glass fiber onto the plate.

According to this configuration, when the sprocket wheel is rotated in one direction by the plate drive device, each plate facing the inner circumferential surface of the rotary main body is brought to a position opposite to the outer circumferential surface of the rotary main body via each chain. The first engaging portion of each plate engages with the second engaging portion of the adjacent plate, allowing each plate to completely cover the outer circumferential surface of the rotary main body. In this state, after forming a fiber-reinforced resin tube by winding the resin liquid-impregnated glass fiber around the rotary body, when the sprocket wheel is rotated in the other direction by the plate drive device, each plate is moved inside the rotary body. As it moves, the fiber-reinforced resin tube is pulled out from the rotary main body.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 11. In this embodiment, there are two drive shafts 11, upper and lower, and a drive disk 1 of each drive shaft 11 is provided.
A rotary main body 13 is fixed to each of the parts 2 and 2. 1
5 is a bearing device for supporting the tip of each rotary type main body 13; 16 is each rotary type main body 13 in a cantilever supported state;
A rotary support device for supporting the lower surface of the tip of the
7 is a cart device for receiving the fiber reinforced resin pipe 6 pulled out from the rotary main body 13; 18, 19;
are screw shafts 2 arranged on both sides of each rotary main body 13.
A tape supply device and a resin liquid impregnated glass fiber supply device are disposed at 0 and 21 so as to be movable in the directions of arrows C and D, respectively. The rotary main body 13 has a cylindrical shape, and its tip 13A is formed in a tapered shape. Reference numeral 23 denotes a driven disk fixed to the base end of the rotary main body 13, which is similar to the drive disk 12.
It is removably fixed to the Reference numeral 107 denotes notches formed at appropriate intervals along the circumferential direction at the base end and the distal end of the rotary main body 13, respectively. It is arranged. 109 is an endless chain wound between both sprocket wheels 108 facing each other along the directions of arrows C and D; 110 is disposed in a notch near the tip of the rotary main body 13; 111 is a driven sprocket wheel fixed to a suitable proximal sprocket wheel 108, 112 is a drive sprocket wheel, and 113 is wound between the drive and driven sprocket wheels 111 and 112. 42 is a plate drive device that rotates the driving sprocket wheel 112 in forward and reverse directions; 26 is a connecting plate disposed near the tip inside the rotary main body 13; and 29 is a connecting plate that connects the rotary main body 13 from the connecting plate 26. A connecting rod protrudes forward through the inside, 32 is a frusto-conical housing fixed to the tip of the connecting rod 29, and 36 is a leaf spring or rubber attached to each operating chain 109 via a connecting piece 114. A hook-shaped first engaging portion 36A is provided on one side edge of the plate.
A hook-shaped second engaging portion 36B that engages with the first engaging portion 36A of the adjacent plate 36 is formed on the other side edge. Further, the length of each plate 36 is made slightly smaller than the length of the rotary main body 13. Reference numeral 39 denotes a support shaft fixed to the tip of the housing 32 by a bolt 38. The bearing device 1
Reference numeral 5 denotes a bearing cylinder device 49 fixed at a position opposite to both sides of each support shaft 39 of the machine frame 48, and a bearing cylinder device 49 disposed at the tip of a piston rod of each cylinder device 49, and when the piston rod is extended, a support shaft. Two-split bearing box 50 that holds 39
It is composed of. The rotary support device 16
includes a cam plate 52 having an upper surface 52A and a lower surface 52B, a moving vehicle 53 movably mounted on the cam plate 52, and a moving vehicle 53 rotatably disposed on the moving vehicle 53 and capable of moving. When the wheel 53 is located on the upper surface 52A, the rotary main body 13
It is composed of a pair of support rollers 54 that come into contact with the tip of the moving vehicle 53, and a moving vehicle cylinder device 55 that reciprocates the moving vehicle 53. The trolley device 17
consists of a truck body 57, a lifting platform 59 with rollers 58 disposed on the truck body 57, and a plurality of lift tables 59 whose central portions are connected to each other with pins and whose ends are engaged with the truck body 57 and the elevator platform 59. link 6
0 and a lifting cylinder device 61 that raises and lowers the lifting table 59 by rotating a suitable link 60.
It is composed of. The tape supply device 18
has a tape reel 64 wound with a resin tape 63 that is integrally fused with the fiber-reinforced resin pipe 6. The resin liquid impregnated glass fiber supply device 19 is composed of the following components. That is, in FIG. 10, 66 is a resin liquid tank with an open top, and a resin liquid 68 that hardens at room temperature is supplied from a resin liquid supply device 67 for 30 minutes.
It is heated to about ℃ and then supplied. The resin liquid supply device 67 includes a resin liquid storage section 69, a resin liquid supply pipe 71 that communicates with the resin liquid storage section 69 and has a resin liquid pump 70 interposed therebetween, and a catalyst storage section 72.
A catalyst pump 73 that communicates with this catalyst storage section 72 and
a catalyst supply pipe 74 and both supply pipes 7
1 and 74 communicate with each other, and a liquid level sensor 76 provided in the resin liquid tank 66.
The system is configured to automatically supply (replenish) a predetermined amount of the resin liquid 68 when the resin liquid 68 becomes below a certain level as a result of detection. The resin liquid tank 66
A drain discharge pipe 7 having an on-off valve 77 is installed at the bottom of the drain pipe 7.
8 are connected. Reference numeral 79 denotes a bending guide device composed of a cooling box 80 and a large number of glass fiber guide tubes (not shown) arranged therein.
is connected to the lower part of the resin liquid tank 66, and the entire body is curved in a J-shape, and the outlet 82 is connected to the lower part of the resin liquid tank 66.
is set higher than the set liquid level of the resin liquid tank 66. Here, the receiving port 81 communicates with the lower part of the resin liquid tank 66 at an angle of 45 degrees.
Further, at least in the receiving port 81 of the receiving port 81 and the taking-out port 82, a ring-shaped ceramic is attached to the starting end of each glass fiber guide tube.
The number of glass fiber guiding tubes is about 60, and the average guiding length L of the curved guiding device 79 is 100 mm to 500 mm. A cooling medium supply pipe 83 communicates with the upper end of the cooling box 80, and a cooling medium discharge pipe 84 communicates with the lower end, and the flowing cooling medium lowers the temperature of the resin liquid 68 in the glass fiber guide tube to about 5°C. .
A resin liquid receiving tank 8 is provided outside the outlet 82.
5 is provided, and this resin liquid receiving tank 85 and the resin liquid tank 66 are connected through a resin liquid return path 66, so that the resin liquid 68 is returned to the resin liquid tank 66 by natural flow. A resin liquid draining device 87 is provided above the resin liquid receiving tank 85. This resin liquid draining device 87 consists of a lower liquid draining plate 88 and an upper liquid draining plate 89, both plates 88,
The amount of resin liquid 68 impregnated can be determined by adjusting the interval l of 89 and the lap height h. 90 is a drip tray provided below the rotary main body 13,
It communicates with the resin liquid receiving tank 85 via the return path 91 . A glass fiber moving path is formed from the resin liquid tank 66 to the upper part of the resin liquid receiving tank 85 via the curved guide device 79, and then to the rotary main body 13 through the resin liquid draining device 89.
Between the extraction port 82 and the resin liquid draining device 87, an acetone gun 92 is placed downwardly above the movement path.
is provided, and the resin liquid 68 is made uniform by acetone 93 from this acetone gun 92. 9
Reference numeral 5 denotes a rubber flange ring which is fitted onto the base end of the rotary main body 13 in order to form a wide-diameter socket 6A at one end of the fiber-reinforced resin pipe 6.

The operation of the above configuration will be explained below. The upper side of FIG. 1 shows the state in which the plate 36 is housed in the rotary main body 13 before manufacturing the fiber-reinforced resin pipe 6, and the lower part of the figure shows the state immediately after manufacturing the fiber-reinforced resin pipe 6. The fiber-reinforced resin tubes 6 are manufactured alternately using two rotary main bodies 13. First, when each plate 36 is located inside the rotary main body 13 as shown in FIG. In this state, the plate drive device 42 is operated to move each operating chain 109 through the transmission chain 113 in the direction indicated by the arrow G.
make it run in the direction. This allows each plate 36
from the inside of the rotary main body 13, its tip 13A
and the housing 32, then makes a U-turn and moves to the outside of the rotary main body 13. Further, at the time of the U-turn, the first and second engaging portions 36A and 36B of adjacent plates 36 engage with each other as shown outside in FIG. 8 and in FIG. 9.
Next, the entire outer peripheral surface of the rotary main body 13 is covered with a plate 36.
As shown in FIG. 11b, the flanged ring 95 is fitted onto the base end of the rotary main body 13, and the support shaft 39 is held between the bearing box 50 of the bearing device 15, and the left end in FIG. The tape 63 is pulled out from the tape supply device 18 located at the top, and the end of the tape 63 is attached to the base end of the rotary main body 13. Next, the rotary main body 13 is rotated in the direction of arrow F by the drive shaft 11, and the screw shaft is rotated. 20 moves the tape supply device 18 in the direction of arrow C.
As a result, the tape 63 is wound onto the plate 36. Next, after wrapping the tape 63, as shown in FIG. 11C, the glass fiber 2 is pulled out from the resin liquid-impregnated glass fiber supply device 19 located at the left end in FIG. At the same time, the rotary main body 13 is rotated in the direction of arrow E by the drive shaft 11, and the supply device 19 is moved in the direction of arrow C. As a result, the resin liquid-impregnated glass fiber 2 is wound around the ring 95 and the plate 36. Then the 11th
As shown in FIG. d, when the resin liquid 68 is cured and the tape 63 is integrated with the glass fiber 2 to form the fiber-reinforced resin pipe 6, the piston rod of the bearing cylinder device 49 of the bearing device 15 is reduced and the bearing The box 50 is separated from the support shaft 39.
Next, the moving vehicle cylinder device 55 of the rotary support device 16 moves the moving vehicle 53 located on the lower surface 52B of the cam plate 52 to above the upper surface 52A, and the supporting roller 54 is moved as shown in the lower side of FIG. The distal end portion 13A of the rotary main body 13 is supported by being brought into contact with the distal end portion of the rotary main body 13 via the plate 36. Next, the operating chain 109 is moved in the opposite direction of arrow G by the plate drive device. Then, the plate 36 is moved in the direction of arrow C, and as shown in FIG.
is pulled out from the rotary main body 13. Note that since the tip of the rotary body 13 is bent to some extent, the fiber-reinforced resin tube 6 can be easily pulled out by passing between the tip of the rotary body 13 and the support roller 54. The drawn-out fiber reinforced resin pipe 6 is placed on a lifting platform 59. Next, if you remove the ring 95, the 11th
A fiber-reinforced resin pipe 6 shown in Figure e can be obtained.

Effects of the Invention As described above, according to the present invention, by rotating the sprocket wheel in one direction by the plate drive device, each plate facing the inner circumferential surface of the rotary main body is moved to face the outer circumferential surface of the rotary main body via the chain. the first plate of each plate.
The engaging portion engages with the second engaging portion of the adjacent plate, and each plate can completely cover the outer peripheral surface of the rotary main body. In this state, after forming a fiber-reinforced resin tube by winding the resin liquid-impregnated glass fiber around the rotary body, when the sprocket wheel is rotated in the other direction by the plate drive device, each plate is moved inside the rotary body. As it moves, the fiber-reinforced resin tube is pulled out from the rotary main body. Therefore, it is not necessary to remove the rotary type main body as in the past, which saves time and effort, and there is no need for a rotary type mounting bed, which was required in the past. Furthermore, since the fiber-reinforced resin pipe is pulled out indirectly through the plate, the fiber-reinforced resin pipe is not damaged.

[Brief explanation of the drawing]

1 to 11 show an embodiment of the present invention,
Fig. 1 is a partially cutaway front view, Fig. 2 is a plan view, Fig. 3 is a view taken along the - arrow in Fig. 1, Fig. 4 is a vertical sectional view of the main part, and Fig. 5 is a plan view of Fig. 4. 6 is a view in the direction of the − arrow in FIG. 4, FIG.
9 is a view taken along the - arrow in FIG. 8, FIG. 10 is a principle diagram of the resin liquid-impregnated glass fiber supply device, and a to e in FIG. 11 are manufacturing process diagrams.
Figures 12 and 13 show conventional examples;
The figure is a schematic cross-sectional view, and FIG. 13 is a plan view of the fiber-reinforced resin pipe in an extruded state. 2... Glass fiber, 6... Fiber reinforced resin pipe, 11...
Drive shaft, 13... Rotating main body, 19... Resin liquid impregnated glass fiber supply device, 36... Plate, 36A... First engaging portion, 36B... Second engaging portion, 42... Plate drive device, 108... Sprocket wheel , 10
9...Operating chain.

Claims (1)

[Claims] 1. A rotary body for forming a cylindrical fiber-reinforced resin pipe whose base end is fixed to a drive shaft is provided, and sprocket wheels are installed at appropriate intervals along the circumferential direction at the base end and tip of the rotary body, respectively. an endless chain is wound between both sprocket wheels facing each other along the axial direction of the rotary type main body, a flexible plate for covering the outer peripheral surface of the rotary type main body is attached to each chain, and each plate A first engaging portion is formed on one side edge, and a second engaging portion that engages with the first engaging portion of an adjacent plate when the plate is in a position facing the outer circumferential surface of the rotary main body is formed on the other side edge. A plate drive device is provided to move each plate from a position facing the inner peripheral surface of the rotary mold body to a position facing the outer peripheral surface thereof by rotating a suitable sprocket wheel in one direction. A fiber-reinforced resin pipe manufacturing apparatus characterized in that a resin liquid-impregnated glass fiber supply device for feeding resin liquid-impregnated glass fibers is provided on a plate that covers the outer peripheral surface of a mold body.