JPS5929121A - Manufacture of reinforced resin composite tube - Google Patents

Abstract

PURPOSE:To obtain a composite tube exellent in strength independent of available time of forming material by supplying hardening resin and inorganic filler independently and concurrently between a core mold and a forming roll and providing a forming material layer with a prescribed thickness about the core mold. CONSTITUTION:Mold releasing material 9 is wrapped about the outer surface of a core mold 1, and if necessary, thermosetting resin liquid impregnated glass roving 8' is wrapped on the mold releasing liquid to form an inner surface layer 8. Inorganic filler 51' and hardening resin 51'' are supplied at the same time respectively from a supplier 6 and a spray 7 between the inner surface layer 8 and a forming roll 2 to provide a forming material layer 5 of a prescribed thickness. Forming material 5' makes a bank 5'' between the inner surface layer 8 and the forming roll 2 by adjusting the supply amount of the filler 51' and sufficient deforming is carried out by compression in the forming material 5'.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a reinforced resin composite tube having at least an inner layer or an outer layer reinforced with fiber reinforced resin.

The present applicant first developed Vcf as a manufacturing method for composite pipes such as VCF.
Qll (special ff[Js 4-99x6c+g
), and the method of this invention is to rotate 1f while rotating in the circumferential direction.
A core mold moving in the ll+ direction and a presser roll provided at a predetermined distance from the outer circumferential surface of the core mold are used, for example, in advance with a mixer or the like.

A molded layer of a predetermined thickness is formed around the T bottle by supplying a mixed molding material of a curable resin and an inorganic optical fiber.

However, in the second method, it is necessary to mix the curable resin and inorganic Koten Aikichi in advance, which requires mixing equipment such as a mixer, which is expensive. There were drawbacks.

In addition, because the curing liquid in the mixed molding material fi contains a certain amount of catalyst and accelerator, there is a limit to the pot life of the mixed molding material PI. Since the temperature of the curable resin rises to a certain extent, the time required for forming the mixed molding material can be further shortened, and there is no problem when manufacturing composite pipes continuously. When manufacturing, it takes a lot of time to prepare for manufacturing, and it also takes a certain amount of time to start and stop the work, so it is not possible to use mixed molding material PI! ■! !
It has the disadvantage that it can be used within a short period of time, may be too powerful, and is uneconomical.

Furthermore, in the case of method 1, in order to obtain a composite tube with excellent strength, VC requires bonding inorganic photonic phase comrades with more expensive hardening plum oil than usual, which is expensive. In case of batch method, j7. There was also the disadvantage that the thickness of the 3-size pieces gradually increased and it took a long time to clean the inside of the mixer.

In view of the drawback of sloping, the present invention is suitable not only for continuous molding but also for patch molding, and is not affected by the pot life of one mixed molded stone compared to conventional 19, and has a curable resin layer with minimal change in center. Strengthened plum fat complex I with excellent strength? The purpose of this invention is to provide a method for manufacturing f.

The hardening #J resin used in the present invention may be granular or powdery, such as unsaturated polyester resins, polyurethane resins, epoxy resins, acrylic resins, vinyl inorganic materials, such as silica sand, glass peas, etc.
Solid optical fibers made of calcium carbonate, clay, etc., glass/<
It is preferable to use 3mM or less, and to increase the packing density, particles with a small particle size (preferably used for Jl, 1 or less, Himi light reinforcement) Figure 1 is a construction drawing showing an example of the method of the present invention.

It is a core type in which an endless spool belt wound around the outer peripheral surface of a 1-inch mandrel rotates in the circumferential direction and moves in the axial direction.

The core type 1 &:l The trap is cut so that the mandrel (M) moves 1 time 1 i%' in the circumferential direction during one rotation of the mandrel (M) and moves in the 11-11 direction by the width of the spool belt.

2 is a forming roll, which is installed in pairs 17 on the outer peripheral surface of the core mold 1 so that the outer peripheral surface thereof has a predetermined interval, and can be rotated separately from the core mold 1 by a drive machine (not shown). There is.

4.4' is Stotsunohime -? ) KFFk above the core mold 1 and the forming roll 2 and on both sides of the forming roll 2
This is to prevent the molded paulownia thorns 5' that are placed and supplied from falling off.

Reference numeral 6 denotes an inorganic filler supplying machine for supplying an inorganic filler 51' which is one of the molding materials 5'. It is installed so that an inorganic filler 51' can be supplied into the gap.

Supply of hardening plum fat 51' which is one of the 7Fi molding materials 1
It is a spray for filling, and it is a non-4A filler feeder 6.
It is installed between the supply port and the gap formed by the core mold 1 and the forming roll 2.

Next, how about making a composite pipe using this device? k ft theory man.

A mold release paulownia 9 is wrapped around the outer surface of the core mold 1, and a glass roving 8 is impregnated with a thermosetting resin liquid as necessary.
' is wound to form an inner surface layer 8, and an inorganic filler 51' is simultaneously supplied from a feeder 6 between the inner surface layer 8 and the forming roll 2, and a hardening plum fat 51' is simultaneously supplied from a sprayer 7 to form a predetermined wall thickness. The molding material f (forms waste 5). The supply m- of the inorganic filling cage 51' is such that the molding material P15' forms the inner surface layer 8 and the molding rff-
It is preferable to adjust the supply amount of the supply device 6 so that the puncture 5'' is formed at the same time as the puncture 2.

When the molding material 5' is supplied so as to form a puncture 5# and pressed, the molding material 5' is degassed, and a molding material M5 having a dense structure and a uniform wall thickness is obtained. In addition, by turning the coating layer 10 of non-woven fabric or the like using the forming roll 2E and covering the molding layer 5 with this coating layer 10, deformation and falling of the layer 5 of the Seijiji F1 can be effectively prevented. It is possible to prevent this, and there is no need to separately drive the forming roll 2, which is convenient for PI. Furthermore, if the forming roll 2 is heated at a temperature of 70"C or less and molded, the thermosetting resin liquid can be This is advantageous because the molded 4'l1-sized layer 5 containing the resin is moderately softened in that area and easily degassed, and the surface is easy to break over 1,000 m.

A glass roving 11' impregnated with a thermosetting resin liquid is wound as necessary on the molded abrasion layer 5 that has passed through 20 parts of molding rolls 11J to form an outer surface layer 11, and then the hardening furnace 12 The composite tube is then hardened and demolded to produce a composite tube provided with a molded material layer 5 of a predetermined thickness.

In the above example, a zero-start IJ1 that continuously manufactures composite pipes is used.
Although an example of the method has been shown, the method of the present invention can also be applied to the edge method.Next, an example of manufacturing a composite pipe with a patch will be shown.

FIGS. 3 and 4 show another example of the method of the present invention. Incidentally, members having the same functions as those in FIGS. 1 and 2 are indicated by the same numbers.

Reference numeral 1 denotes a core type, and is formed by, for example, pressing a linear shaft core 102 into an elastic cylindrical body 101 so as to protrude at both ends. The core type 1 is rotatably mounted on bearings 14 and 14 installed on the frame 13 with both protruding ends of the linear shaft 102 driving a gear 15 attached to one end of the shaft 102! The core mold 1 is rotated in the circumferential direction by meshing with gears 16' which are disposed several times on the rotating shaft of the IIIJ machine 16. The pedestal 13 moves on the rail 17 with a left force
5 (It is thrown so that it can be moved to 111.

It is a 2-piece molding □ roll, and is set in a large size on the outer peripheral surface of the core mold 1 so that the outer peripheral surface has a predetermined interval. (see Fig. 4), and can be rotated separately from the core mold 1 by a drive machine (V-polish).

This is a supply machine for supplying 6 inorganic YT fillers 51', and the supply port of the supply machine 6 is mounted on a fixed base 18 so as to be placed above the gap formed between the core type and the forming roll 2. It is fixedly installed.

Reference numeral 7 denotes a spray for supplying the curable resin 51', which is supplied from a resin tank disposed on the fixed base 18 by a pump or the like.

19. This is an impregnating tank for impregnating the 20th glass roving a', i i' with a curable resin, and the fixing base 18
It is installed in ``2''.

Manufacture a composite tube by the above-mentioned filling method]
do.

While wrapping the glass roving 8' impregnated with a hardening resin in the impregnating tank 19 around the core mold 1 which is rotating due to the rotational force of the driving machine 16, the frame is moved to the right to coat the inner surface layer 8. Then, the inorganic yf' is filled from the feeder 6 into the A11ij layer 8 and the forming roll 2.
'51', curable resin 51' was simultaneously supplied from spray 7, and coating 110 was coated with molding roll 2.
Chemical formula 1 Molding to cover the cedar layer 5' and have a predetermined thickness 4. +
21 layer 5 is formed.

As shown in FIG. 5, two feeders 6 and 6' feed one side to the inner surface layer 8 side and the other side to the forming roll 2 side. The hardening resin 51' may be simultaneously supplied from the spout 1)-7 at the intermediate part, and in this case, the scattering of the hardening resin 51'' is simultaneously supplied to the inorganic filler 1,151. ' , 51
' The blockage is prevented, which increases the efficiency of use of the curable resin and improves the working environment. In addition, the curable resin is not only attached to the surface of the inorganic filler, but also
Since it is inserted and removed while forming a puncture between the molding phase material layer 5 and the inner surface N48, the molding phase material layer 5 is moved from the center of the molding layer 5 to the inner surface layer 8 side and the molding roll 2 while sufficient defoaming is performed in the molding grit 5'. Hardenable 411 fat 51'' is press-fitted into the side and penetrates quickly, resulting in a molded phase separation layer 8 with a uniform thickness of 14 and j, which has a dense structure.
Gai (I will be)

Next, with the coating phase 10 (J wafer molding phase 1 layer 8 impregnated) 11 and 20, the curable 4'61111'l was impregnated with 17Y glass roving 11' and wrapped around it. ; The surface layer 11 is formed, and then the pedestal 13 is put into a curing furnace (Illustrated-1
It is cured by passing it through the 1911 ice, and then removed from the stand 13. L, one question was asked about the former residence 8 of the prescribed j number, 7'C complex/11i'
Made ji1. r.

In addition, before hardening the formed composite gear, the shaft core 102 is removed and a bent composite gear with a predetermined curvature is inserted.
If you harden it after making it, you can fit the curved monk.

Alternatively, a forming roll 2 as shown in FIG. 6 may be used. 2f: [Thickness tone (1\ River molding ``7-
and 1′! Forming roll 2 VCIt, Il mandrel (81) support 11111 with forming roll 2 and the axial direction of the surface facing 4i? 1" r-shaped gap holding roll 21 is located at \ΣkJ et al. When the gap holding roll 21 rotates in contact with core type 1 A gap of a constant width is formed between the feed roll 2 and the forming roll 2, and the formed feed 5' is fed into this gap to form a 1'' (shape + Ait layer).

The forming roll 2, the gap holding roll 2, and e:I-/two supports] are rotatably housed in the frame 22 with a rotation axis parallel to the mandrel CM+, and are sill- or suppressed. It is made to rest on the core mold 1 and be suppressed by a suppressor 23, such as a spring. frame 22
&:I: 2 wood guy 124.24VC6! VC9 is installed so that they slide together.

I+l+ of forming roll 2 is supported by bearing 25.25 i]
,, this bearing 25.25 series #j'i rod 2 (i,
2G is slidable in the support A27.27, and the connecting rod 26.26 is housed in the support 27.27.
1? K is made so that it is fixed at . .

By forming the 1N layer like a thread, a molded compatible layer having a wall thickness corresponding to the difference in distance from the core mold surface between the surface of the forming roll 2 and the surface of the gap holding roll 21 is formed using a mandrel (M
The thickness of the molding layer can be adjusted as desired, and a small-diameter composite l Currently, when manufacturing a compound 1'8 with a long pipe length using a patch, K
Ij7 is suitable.

Is the surface condition of the gap holding roll 21 flat? t'? It is not limited to shapes, but can also be wavy, gear-shaped, or even gear-shaped! these#
It may be a combination of +1.

In addition, 1 mackerel to form a 1" 4-year-old 1-layer structure, 1 table of 7 pieces.
Even if the rotational speed of 1j and the rotational speed of the surface of the forming roll 2 are different, as long as the difference is small, there will be no problem in forming one layer of the forming roll 1, ~ The roll 210 rotation axis may be the same, or the forming roll 2 and the spacing roll 21 may be combined with each other. ,.

The present invention's manufacturing method for 1I Jbl llFr composite 1゜C & I JJ, Shi's jl" 0 17η is made, so there is no need for disassembly equipment, such as a combination machine, etc., used in the conventional method. Therefore, regardless of the usage time of n1 of lit type 1, it can be manufactured at a low cost with 'c fAl, tl' equipment to the composite 1 which has no strength.In addition, it can be manufactured not only by continuous molding but also by patch molding. This is the dripping manufacturing method.

[Brief explanation of drawings]

A plan view showing an embodiment of the first ryld wood f'91, the second
Fig. 3 is a cross-sectional view taken along the line 11-11 in Fig. 1, Fig. 3 is a plan view showing another embodiment of the zero generator 1, Fig. 4 is a cross-sectional view taken along the line rl-IV in Fig. 3, Cross-sectional view with parts omitted, No. 5
The figure is a cross-sectional view showing another modification, and FIG. 6 is an iE surface showing a modification of the forming roll with some parts omitted. l Core mold, 2 Forming roll, 5 Forming phase t1 layer, 5
'...Molding material, 51'...Inorganic filling cage, 51'' Curing resin, 6, 6'... Feeder, 7 Spray 8/Inner surface layer, 8', l 1'/Glass roving, lO/
Covering material, 11 ・Outer surface layer Patent applicant Mototoshi Fujinuma Representative of Sekisui Chemical Co., Ltd. Figure 1 11 Figure 2 Figure 5

Claims (1)

[Claims] 1. A core mold that rotates in the circumferential direction or moves in the axial direction while rotating in the circumferential direction, and a forming roll that is rotatably provided at a predetermined interval with respect to the outer peripheral surface of the core mold. Forming a molding material layer of a predetermined thickness made of the curable resin and the inorganic filler around the core mold by supplying the curable resin and the inorganic filler phase separately and simultaneously to the gate.
A method for manufacturing a reinforced resin composite pipe characterized by cp.