JPS5854658B2 - Manufacturing method of large-diameter composite cylinder for fishing reefs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a large-diameter composite cylinder for fishing reefs.

As shown in FIG. 1, the cylindrical bodies 4 used in the past have been made of metal when creating a suspended fishing reef by attaching the cylindrical bodies 4 at appropriate intervals to the rope body 3 that connects the anchor 1 and the buoy 2. Made of iron (iron) was used.

In this case, there were problems such as the surface being plated with eastern lead for corrosion resistance, which made the whole buoy expensive, and the specific gravity of the buoy 2 having to be large.

The biggest problem in particular is that the cylinder body 4 has a large diameter (10 m or more), so if it is made in an integrated state on land, it cannot be easily transported, and if it is made in separate pieces on land, it cannot be easily transported. The problem is that sufficient strength cannot be obtained when assembled offshore.

Therefore, the present invention provides a method for manufacturing a large-diameter composite cylindrical body for fishing reefs that can solve the above-mentioned problems at once.Examples thereof will be described below with reference to FIGS. 2 to 12.

In FIG. 2, 10 is a ship, and a composite board manufacturing device 11,
Composite cylindrical body manufacturing device 12 and manufactured large diameter composite cylindrical body 13
It has a working crane 14 for assembling.

This ship 10 may be of a self-propelled type or a towed barge type.

As shown in FIG. 3, the composite plate manufacturing apparatus 11 includes a transport conveyor 15, a guide roll 17 for supplying a synthetic resin film 16 such as a polyester film or a vinylon film onto the transport conveyor 15, and a guide roll 17 for supplying a synthetic resin film 16 such as a polyester film or a vinylon film onto the transport conveyor 15. a guide roll 19 for supplying the cloth-like glass fiber 18 onto the cloth-like glass fiber 18;
Uncured resin mortar 2, which is a mixture of sand and resin, is placed on top of the mortar.
A hopper 21 for supplying 0, a spreading roll 22 for leveling provided at the outlet of the hopper 21, a press roll 23 for defoaming provided below the spreading roll 22, and a press roll 23 for defoaming provided below the spreading roll 22, A guide roll 25 for supplying the cloth-like glass fiber 24 onto the layer of the mortar 20, a press roll 26 provided below the guide roll 25, and a press roll 26 for supplying the synthetic resin film 27 onto the cloth-like glass fiber 24 below the guide roll 25. It consists of a guide roll 28, a pair of upper and lower forming rolls 30 for final forming the composite plate material 29 downstream thereof, and a cutting device 31 for cutting the formed composite plate material 29 to a fixed length.

As shown in FIG. 4, the unfolding roll 22 adopts a screw type in which the right half and the left half thereof are fed in different directions.

The press rolls 23 and 26 may have rectangular uneven surfaces as shown in FIG. 5, or wave-like uneven surfaces as shown in FIG. 6.

Various combinations of forming rolls 30 are possible.

That is, as shown in FIG. 7, a combination of a round bar-shaped roll 30A and a rectangular uneven roll 30B, as shown in FIG. 8, a combination of a pair of wave-shaped uneven rolls 30C, and as shown in FIG. and a stepped roll 30D having small diameter portions at both ends, or a pair of round bar-shaped rolls 30A as shown in FIG. 10, and composite plate materials 29 of various shapes can be expected from these.

The laminated state of the composite plate material 29 is as shown in FIG.

As shown in FIG. 3, the composite cylindrical body manufacturing apparatus 12 includes a plurality of inner rolls 32 disposed in an annular shape, a plurality of outer rolls 33 disposed at appropriate intervals so as to face the inner rolls 32, and It consists of a receiving support roll 34 for receiving the composite plate material 29 from the plate material manufacturing apparatus 11 and a heating device 35. will be established.

Note that the inner roll 32 and the outer roll 33 have the same shape as the forming roll 30.

Next, the manufacturing operation of the composite cylindrical body 13 will be explained.

By driving the conveyor 15, the guide rollers 17°19
The synthetic resin film 16 and the cloth-like glass fiber 18 are fed out and transferred through the cloth-like glass fiber 18.
An uncured resin mortar 20, which is a mixture of sand and resin, is supplied from a hopper 21 onto the top of the spread roll 22.
Spread it in the width direction and level it.

Then, the uncured resin mortar 20 is pressed by the pressure between the conveyor 15 and the press roll 23, thereby degassing while compacting it.

Next, cloth-like glass fibers 24 are supplied onto the 200 layers of uncured resin mortar via guide rolls 25, and then press-molded using press rolls 26.

Then, the guide roll 2 is placed on the cloth-like glass fiber 24.
A synthetic resin film 27 is supplied through a roller 8 and then formed into a desired shape by a forming roll 30.

The composite plate material 29 thus obtained is transferred between the two rolls 32 and 33 via the receiving support roll 34, and is formed into a cylindrical shape while being guided along the arcuate path. 35, and thus travels the rest of the route in a hardened state.

When the cylindrical forming has progressed considerably and a predetermined amount of the composite plate material 29 has been carried into the composite cylindrical body manufacturing apparatus 12, cutting is performed by the cutting device 31.

As a result, a composite cylinder 13 with one portion cut can be molded in the composite cylinder manufacturing apparatus 12.

Therefore, after pulling out both rolls 32 and 33 in the axial direction, a large-diameter composite cylinder 13 can be obtained on the ship 10 by, for example, fixing the screws 37 through the backing material 36 as shown in FIG. , this composite cylinder 13 is taken out onto the upper deck.

The composite cylinders 13 are attached to the cable on the upper deck, and by attaching a predetermined number of composite cylinders 13 and distributing anchors and buoys to both ends of the cable, a suspended fishing reef is created. This suspended fishing reef is loaded from a ship using a working crane 14 and installed in the sea.

Note that during molding, at least one of the inner roll 32 and the outer roll 33 is driven.

Also, by making both rolls 32, 33 adjustable in position in the radial direction, a change in diameter may be made possible.

According to the present invention described above, since a composite cylinder having both the inner and outer layers made of reinforced resin can be obtained, the whole can be provided at low cost while having excellent corrosion resistance, and the specific gravity can be adjusted. When used on a suspended fishing reef, a buoy or the like can be easily selected, but in particular, according to the present invention, a large-diameter composite cylinder can be integrally molded on board a ship, so there is no need to worry about transporting a buoy that has sufficient strength. Fish reefs can be easily obtained using large-diameter composite cylinders.

[Brief explanation of drawings]

Fig. 1 is a schematic front view showing an example of use, Figs. 2 to 12 show embodiments of the present invention, Fig. 2 is a schematic diagram, Fig. 3 is a side view of main parts, and Fig. 4 is a A front view of the developing roll, FIGS. 5 and 6 are front views of the press roll, FIGS. 7 to 10 are front views of the forming roll, and FIG. 11 is an enlarged view of main parts in a laminated state.
FIG. 12 is a side view of the molded product. 10... Ship, 11... Composite board manufacturing device, 12... Composite cylinder manufacturing device, 13...
... Composite cylinder, 15 ... Conveyor, 16.
... Synthetic resin film, 18 ... Cloth-like glass fiber, 20 ... Uncured resin mortar, 23 ... Press roll, 24 ... Cloth-like glass fiber, 26, mountain...press roll, 27
...Synthetic resin film, 29...Composite plate material, 30...Molding roll, 31...
Cutting device, 32... Inner roll, 33...
...Outer roll, 35...Heating device.

Claims (1)

[Claims] 1. A composite plate manufacturing device and a composite cylindrical body manufacturing device are installed on a ship, and in the composite plate manufacturing device, a synthetic resin film is first supplied onto a conveyor, and then a cloth-like glass fiber is placed on the synthetic resin film. and supplying an uncured resin mortar onto the cloth-like glass fiber,
This uncured resin mortar is spread in the width direction with a spreading roll, then pressed and molded with a press roll, then cloth-like glass fiber is supplied onto the uncured resin mortar layer, and then pressed with a press roll, and then the cloth-like glass fiber is A synthetic resin film is supplied on top of the composite plate material to form a laminated composite plate material, and then this composite plate material is passed through a forming roll to be formed and then fed into the composite cylinder manufacturing apparatus, which comprises at least the following steps: One side has a curved forming path in which a large number of drive-type inner rolls and outer rolls are arranged, and the composite board is passed through this curved forming path to perform the curve forming, and during the curve forming, a predetermined amount of the composite board is fed. At this point, the composite plate material is cut by a cutting device installed at the entrance of the composite cylindrical body manufacturing equipment, and is heated and hardened by a heating device installed at an appropriate position on the curved forming path. The opposite ends are joined to form a composite cylindrical body, a plurality of these composite cylindrical bodies are attached to a cable body, and anchors and buoys are distributed and attached to both ends of the cable body. A method for manufacturing large-diameter composite cylinders for fishing reefs.