JPS598546B2 - Y-shaped tube forming equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a Y-shaped tube forming apparatus that can form a Y-shaped tube quickly and reliably, and furthermore, can arbitrarily adjust the angle between each tube section. Examples will be described based on the drawings.

In FIG. 1, a vertical outer mold 1 is supported via a plurality of rollers 2, and is rotatable around a vertical axis 5 by interlocking with a motor 3 via a transmission mechanism 4.

Reference numeral 6 denotes a vertical core mold disposed within the vertical outer mold 1, and a lid T formed integrally therewith is fixed to the vertical outer mold 1 via a fixture 8.

9A and 9B are a pair of left and right flexible outer molds connected to the lower end of the vertical outer mold 1 via a connecting fitting 10 and fixtures IIA and IIB, and inclined outer molds 12A and 12B are connected to the outer ends thereof, respectively. has been done.

These flexible cage molds 9A, 9B and inclined outer molds 12A, 12B can be separated in the circumferential direction, and the brackets are also connected to each other. 13A and 13B are inclined core types arranged from the inclined outer molds 12A and 12B to the inside of the flexible outer molds 9A and 9B, and the integrally formed lid bodies 14A and 14B are the fixtures 15A,
It is fixed to the inclined outer molds 12A and 12B via 15B.

During this fixing, the rubber molds 16A and 16B are also integrated, and these rubber molds 16A and 16B are fitted onto the inclined core molds 13A and 13B. A gap is created between the inner ends of the inclined core molds 13A, 13B and the inner end of the vertical core mold 6, and a gap is also created between the inner ends of the inclined core molds 13A, 13B. With the above configuration, a molding space IT is formed between each outer mold 1, 9A, 9B, 12A, 12B and each core mold 6, 13A, 13B, and this molding space IT is formed by the lid T, 14A, 14B, etc. It is sealed. A resin liquid supply device 18 is connected to the lower end of this molding space 17. The resin liquid supply device 18 includes a pump 21 to which takeout pipes 20A and 20B from tanks 19A and 19B are connected, a motor 22 that drives this pump 21, and a rotary distributor attached to the tip of a discharge pipe 23 from the pump 21. It consists of a rotary distributor 24 and distribution pipes 25A and 25B from this rotary distributor 24, and distribution pipes 25A and 25B.
A supply path 2 whose ends are formed in the lids 14A, 14B, etc.
It communicates with the lower end of the molding space 11 via 6A and 26B. An air vent hole 27 is formed in the lid 7 to open the upper end of the molding space 17. Reference numeral 28 indicates a drain resin receiver disposed on the outside of the lid body 7.

An inclination angle adjustment device 29 is provided between the inclination outer molds 12A and 12B.
has been established. Although a turnbuckle is shown in the embodiment as this inclination angle adjustment device 29, a pantograph mechanism or a link mechanism may also be employed. Each core type 6, 13A,
13B is cylindrical, and inside thereof are these core molds 6,
Tube bodies 30A and 3 that fill the gap between 13A and 13B
0B is provided. 31A, 31B are tube bodies 3
Pressure supply conduit to 0A and 30B, 32 is reinforced fiber, 33
indicate Y-shaped tubes, respectively.

Next, the manufacturing and crushing of the Y-shaped pipe will be explained.

First, the reinforcing fibers 32 are pre-wound in the molding space 17. At this time, the gaps between the core molds 6, 13A, 13B are filled with the inflated tube bodies 30A, 30B. In the state shown in FIG. 1, the entire assembly is rotated around the vertical axis 5, and the pump 21 is operated to supply resin liquid to the lower end of the molding space 17. Then, the resin liquid is pushed up in the direction opposite to the direction of gravity in the molding space 17, and is impregnated into the reinforcing fibers 32 while being sufficiently degassed. At this time, the air in the molding space 17 that is replaced with the resin liquid is discharged 2 from the air vent hole 27. When the molding space 17 is completely filled with the resin liquid, the surplus of the resin liquid will come out from the air vent hole 27 and will be received by the drain resin receiver 28VC, and upon confirmation of these, the resin liquid supply device 18 will be stopped. let After the resin liquid is cured, the rotation is stopped three times. After that, the extraction is performed. For this removal, first, the fixtures 15A, 1
5B and pull out the inclined core molds 13A, 13B, and at the same time remove the rubber molds 16A, 16B. and fixture 11
A, 11B are released and the inclined insulating molds 12A, 12B and the flexible insulating molds 9A, 9B are disassembled and removed. After that, the product
It is only necessary to extract it from the vertical outer mold 1 and the vertical core mold 6. As a result, a Y-shaped tube 33 as shown in FIG. 2 is obtained. Before supplying the resin liquid, the inclination angle adjustment device 29 is operated. This allows the inclined outer molds 12A and 12B to approach or separate from each other, thereby making it possible to arbitrarily adjust the angle between the respective sections. At that time, the change in relative position with the vertical outer mold 1 is the flexible outer mold 9A.
, 9B. Also, valley core type 6,13A
, 13B can be absorbed by deformation of the tube bodies 30A, 30B. When the reinforcing fibers 32 are pre-wound as shown in the above embodiments, the Y-shaped tube 33 containing the reinforcing fibers 32 is formed with the reinforcing fibers 32 stabilized and sufficiently impregnated and defoamed. However, this is a normal Y-shaped tube 3 that does not contain reinforcing fibers 32.
3 is also possible.

According to the present invention described above, a Y-shaped tube can be formed quickly and reliably, and the angle between each tube section can be arbitrarily adjusted by operating the inclination angle adjusting device.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view showing an embodiment of the present invention, and FIG. 2 is a partially cutaway front view of the product. 1...Vertical cutout type, 5...Vertical axis center, 6...
...Vertical core type, 9A, 9B...Flexible type, 1
2A, 12B... Inclined type, 13A, 13B.
...Incline core mold, 16A, 16B...Rubber mold, 17...Molding space, 18...Resin liquid supply device, 24... Rotating distributor, 27...
...Air vent hole, 29...Inclination angle adjustment device,
30A, 30B... Chup type, 32...
...Reinforced fiber, 33...Y-shaped tube.

Claims (1)

[Claims] 1. A vertical outer mold rotatably arranged around a vertical axis, a vertical core mold arranged within this vertical outer mold, and a pair of left and right parts connected to the lower end of the vertical outer mold via a flexible outer mold. A closed molding space is formed between each outer mold and each core mold by providing an inclined outer mold and an inclined core mold disposed inside each of these inclined outer molds, and a resin is placed at the lower end of this molding space. In addition to connecting a liquid supply device, an air vent hole is formed at the upper end of the molding space, an inclination angle adjustment device is provided between the inclined outer molds, and a tube body is further provided to fill the gap between both core molds. Y-shaped tube forming equipment.