KR101682300B1 - Pipe forming method and structure for fish holding nursery - Google Patents

Pipe forming method and structure for fish holding nursery Download PDF

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Publication number
KR101682300B1
KR101682300B1 KR1020150085025A KR20150085025A KR101682300B1 KR 101682300 B1 KR101682300 B1 KR 101682300B1 KR 1020150085025 A KR1020150085025 A KR 1020150085025A KR 20150085025 A KR20150085025 A KR 20150085025A KR 101682300 B1 KR101682300 B1 KR 101682300B1
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KR
South Korea
Prior art keywords
pipe
extruder
revolutions
state
forming method
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KR1020150085025A
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Korean (ko)
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이정안
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이정안
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Priority to KR1020150085025A priority Critical patent/KR101682300B1/en
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    • B29C47/0009—
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • B29C47/8815—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention relates to a pipe forming method and structure for cage aquaculture, and it is an object of the present invention to realize a structure in which a joint hole is formed through the inner periphery of a pipe while forming a covering part having a reinforcing function, In the process of using the bolt to the joint hole after the bolt is fastened to the joint hole, it is possible to prevent damage to the pipe which may occur in the fastening part of the bolt, even if the pipe is shaken by waves and waves. There is.
In order to achieve this, the present invention provides a process for producing a plastic raw material pellet, comprising the steps of: extruding a plastic raw material pellet from an extruder 6 through a mold 16 into a circular pipe 2; (7) and a cooler (8), and drawing the pipe (2) to the drawer (10) after the cooling process;
And cutting the pipe (2) with a cutter (12) after the pulling out process, the pipe forming method comprising:
In the withdrawing process, the number of revolutions of the motor of the extruder 10 is increased to a constant number of revolutions for a predetermined time in a state where the number of revolutions of the screw of the extruder 6 is constantly fixed, The pipe 2 is pulled out from the drawer 10 while repeating the thickness of the pipe 2 at a predetermined interval in a thin state and a thick state, and a joint hole is formed in the thick state portion.

Description

TECHNICAL FIELD The present invention relates to a pipe forming method and a structure for fish holding nursery,

[0001] The present invention relates to a pipe forming method and structure, and more particularly, to a pipe forming method for a cage aquaculture facility, in which the pipe is formed in a lattice pattern In the process of using the bolt to the joint hole after the bolt is fastened to the joint hole, it is possible to prevent damage to the pipe which may occur in the fastening part of the bolt, even if the pipe is shaken by waves and waves. And to a method and a structure for forming a cage culture pipe.

Generally, a caged fish farm set up in the sea is used for the production of fish and shellfish and fish. In such a caged fish farm, a footrest, a bill and a net are installed.

When the pipe is assembled in a grid pattern, the pipes are shaken due to waves and waves. In this shaking process, the bolts fastened to fix the pipes continuously generate stress.

Therefore, a crack is generated in the pipe to which the bolt is fastened, and the pipe is damaged. Therefore, there is a need for a structural improvement to fundamentally prevent the pipe from being damaged by the bolt.

On the other hand, in the conventional art, KR 20-0279511 Y1 2002.06.11. Referring to FIGS. 1A and 1B, a frame F constituting a cage farm is composed of a connection port C and a pipe member P. The frame member F includes a connection pipe C and a pipe member P.

The first and second fasteners (2, 4) are arranged on the connector C so as to cross each other and have fixing holes (H) at both ends thereof. And a reinforcing portion 6 for improving durability are integrally formed.

The pipe member P is inserted into the fixing hole H, and is fixed to the fixing member by heat.

Accordingly, the plurality of pipe members P are arranged in a lattice pattern while being coupled to the first and second fixtures 2 and 4.

As described above, the frame F installed in the cage farm is shaken due to waves, waves and the like. At this time, the pipe member P constituting the frame F and the first and second fixtures 2 and 4 The first and second fasteners 2 and 4 are cracked by the pipe member P and are eventually broken.

Particularly, in the winter weather, there is a drawback that the degree of breakage of the first and second fasteners (2, 4) severely occurs.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the conventional art as described above, and it is an object of the present invention to provide a structure in which a joint hole having a reinforcing function is formed in an inner periphery of a pipe, And the bolt is fastened to the coupling ball after it is placed in the shape of the pipe, it is possible to prevent damage to the pipe which may occur in the fastening part of the bolt, even if the pipe is shaken by waves and waves, .

The present invention relates to a process for extruding a plastic raw material pellet from an extruder (6) through a mold (16) into a circular pipe (2)

Cooling the pipe (2) while passing the pipe (2) sequentially toward the vacuum tank cooler (7) and the cooler (8) after the extrusion process;

Withdrawing the pipe (2) to the dispenser (10) after the cooling process,

And cutting the pipe (2) with a cutter (12) after the pulling out process, the pipe forming method comprising:

In the withdrawing process, the number of revolutions of the motor of the extruder 10 is increased to a constant number of revolutions for a predetermined time in a state where the number of revolutions of the screw of the extruder 6 is constantly fixed, The pipe 2 is pulled out from the drawer 10 while repeating the thickness and the thickness of the pipe 2 at a predetermined interval, and a joint hole is formed in the thickened portion.

A process of extruding the plastic raw material pellets from the extruder 6 through the mold 16 into the circular pipe 2,

Cooling the pipe (2) while passing the pipe (2) sequentially toward the vacuum tank cooler (7) and the cooler (8) after the extrusion process;

Withdrawing the pipe (2) to the dispenser (10) after the cooling process,

And cutting the pipe (2) with a cutter (12) after the pulling out process, the pipe forming method comprising:

During the extrusion process, the number of revolutions of the screw of the extruder (6) is increased to a constant number of revolutions for a predetermined time in a state where the number of revolutions of the motor of the withdrawer (10) is fixed constantly, The thickness of the pipe 2 is extruded from the extruder 6 while repeating the thin state and the thick state at regular intervals, and a bonding hole is formed in the thick state part.

The present invention has a structure in which the joining hole 18 is formed so as to be formed in the inner periphery of the pipe 2 while forming the bare part 20 having a reinforcing function, so that the pipe 2 is arranged in a lattice pattern Even if the pipe 2 is shaken by waves and waves in the course of using the bolt 22 in the joint hole 18 by using the bolt 22 in the cage farm, The damage of the pipe 2 that may occur in the fastening portion is prevented.

Figs. 1A and 1B are state diagrams showing a conventional art. Fig.
2 is a schematic view of an extrusion apparatus constituting an embodiment of the present invention.
3 is a plan view of assembling a pipe, which is an embodiment of the present invention.
4 is a partial perspective view of a pipe assembled according to an embodiment of the present invention.
5 is a partially exploded perspective view of a pipe according to an embodiment of the present invention.

The pipe 2 according to the present invention is used in a cage farm installed in the sea. The pipe 2 is made of a plastic material by the extrusion device 4 shown in FIG. 2. The structure of the extrusion device 4 As follows.

The extruder 4 is generally used in the market and is widely used and has an extruder 6, a vacuum tank cooler 7, a cooler 8, an extractor 10, a cutter 12, And the transfer table 14 are arranged in this order.

The extruder 6, which is installed as described above, extrudes the pellet as a raw material of plastic material into a liquid phase and then passes the mold through the circular pipe 2. At this time, And is extruded while being conveyed toward the mold 16 by a power rotating screw.

The withdrawal machine 10 completes a circular shape having a certain thickness by pulling a pipe 2 that has passed through a vacuum tank cooler 7 and a cooler 8, The pipe 2 is pulled.

At this time, the thickness of the pipe 2 can be adjusted according to the number of rotations of the motor, and the process will be described later.

The molding process of the pipe 2 by the extrusion apparatus 4 having the above-described structure will be described below.

First, a process of extruding the pellets as a raw material of plastics from the extruder 6 to the circular pipe 2 through the mold 16 is performed.

The pellet as the plastic raw material is heated by a heater (not shown) provided in the extruder 6 to be in a liquid state. Thereafter, the raw material in a liquid state is transferred by a screw rotating by the motor power not shown, To form a pipe (2).

After the extrusion process, the pipe 2 is sequentially passed through the vacuum tank cooler 7 and the cooler 8 to cool the pipe 2.

After the cooling process, the pipe 2 is drawn out through the drawer 10.

The thickness of the pipe 2 can be increased or thinned by varying the number of revolutions of the motor of the drawer 10 in the drawing process.

First, if a cage pipe having an outer diameter of 110 mm is produced in a state where the motor of the extruder 6 is maintained at a constant speed, the cage pipe is passed through the pipe 2 while maintaining the motor rotation speed of the take- . The pipe 2 having passed through the extractor 10 has a diameter of 110 mm and a thickness of 12 mm. The length of the pipe 2 passing through the extractor 10 is 2 m.

When the length of the pipe 2 having passed through the drawer 10 reaches 2 m as described above, the pipe 2 is continuously passed through while keeping the motor rotation speed of the drawer 10 at 7 rpm . When the number of revolutions of the motor is reduced to 7 rpm as described above, the pipe 2 passing through the drawer 10 is gradually thickened to 15.6 mm. At this time, the pipe 2 passing through the drawer 10, Is 0.5 m in length.

Subsequently, when the length of the pipe 2, which has continuously passed through the outlet 10, reaches 0.5 m, the pipe 2 (hereinafter, referred to as " ). As described above, the pipe 2 passing through the dispenser 10 gradually becomes thinner and keeps 12 mm. At this time, the length of the pipe 2 passing through the dispenser 10 is 2 m.

When the number of revolutions of the motor of the dispenser 10 is regulated in the order of 10 rpm, 7 rpm and 10 rpm as described above, the thickness of the pipe 2 passing through the withdrawal machine 10 becomes gradually thicker at 12 mm 15.6 mm, and then progressively thinned to reach 12 mm.

Although the thickness of the pipe 2 passing through the ejector 10 is 12 mm and 15.6 mm, the thickness of the pipe 2 may be changed at any time.

The thickness of the pipe 2 may be different according to the number of revolutions of the motor 10 of the dispenser 10 as described above. However, the number of revolutions of the motor connected to the not shown screw of the extruder 6 may be varied, May be formed to have different thicknesses.

For example, in the extrusion process, the number of revolutions of the screw of the extruder 6 is made faster than the number of revolutions of the motor of the extruder 10 by a constant number of revolutions for a predetermined time or by a constant number of revolutions , The pipe (2) is extruded from the extruder (6) while repeating the thickness and thickness of the pipe (2) at regular intervals.

At this time, the number of revolutions of the motor of the take-out machine 10 is maintained at a constant speed.

After the drawing process, the pipe 2 is cut with the cutter 12.

As described above, the pipe 2 cut to a predetermined length by the cutter 12 is taken out to the outside through the transfer table 14. [

The structure of the pipe 2 will be described with reference to FIGS. 3 to 5 as follows.

First, for example, in the case of producing a 110 mm outer diameter pipe, the extruded pipe 2 formed by the extrusion device 4 has a diameter of 110 mm. In FIG. 3, the point "A" , The thickness of which is 12 mm, and the point "B" is a pipe (2) having a length of 0.5 m and a thickness of 15.6 mm and a length of 2 m from the end of the pipe 2) inner circumference.

At this time, the outer diameter of the pipe 2, the thickness of the thinner pipe 2, and the thickness and spacing of the thicker pipe 2 are not fixed, but may vary depending on the conditions of the site.

The "A" and "B" points formed as described above are repeatedly formed along the longitudinal direction of the pipe 2.

An engaging hole 18 having a diameter of 20 mm is formed in the pipe 2 at intervals of 2.5 m along the longitudinal direction. The engaging hole 18 is located in the covering portion 20.

In order to use the pipes 2 in a cage farm, they are arranged at intervals of 2.5 m in a lattice pattern. Then, each of the engaging holes 18 formed in the piercing portion 20 is made of stainless steel and has a diameter of 18 mm The bolts 22 are engaged and then the nuts 24 are fastened. Accordingly, the pipes 2 are fixed in a lattice pattern.

When the pipe 2 is assembled in a lattice pattern and installed in the sea, a foot plate can be installed on the pipe 2 so that it can be carried by a person, and a buoyant force and a net .

The pipe 2 assembled as described above is always blown by the wind, and the pipe 2 is shaken by waves and waves. However, at this time, the bolt 22 is continuously applied to the pipe 2 while repeating the stress, The bare part 20 formed in the pipe 2 receives the stress transmitted through the bolt 22. [

Thus, damage of the pipe 2 which may occur in the fastening portion of the bolt 22 is prevented.

Particularly, even in winter freezing weather, damage of the pipe 2 which may occur in the fastening portion of the bolt 22 due to the reinforcing function of the scratch-off portion 20 is prevented.

Although the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, it is to be understood that the present invention is not limited to the disclosed embodiments. Those skilled in the art will appreciate that various modifications, And various modifications and changes may be made without departing from the scope of the present invention.

2: Pipe 4: Extrusion device
6: Extruder 7: Vacuum tank cooler
8: cooler 10:
12: Cutter 14: Feed table
16: mold 18: engaging hole
20: sponge 22: bolt
24: Nut

Claims (2)

A step of extruding the plastic raw material pellets from the extruder 6 through the mold 16 into the circular pipe 2,
Cooling the pipe (2) while passing the pipe (2) sequentially toward the vacuum tank cooler (7) and the cooler (8) after the extrusion process;
Withdrawing the pipe (2) to the dispenser (10) after the cooling process,
And cutting the pipe (2) with a cutter (12) after the pulling out process, the pipe forming method comprising:
In the withdrawing process, the number of revolutions of the motor of the extruder 10 is increased to a constant number of revolutions for a predetermined time in a state where the number of revolutions of the screw of the extruder 6 is constantly fixed, , The pipe (2) is pulled out from the drawer (10) while repeating the thickness and thickness of the pipe (2) at regular intervals, and a joint hole is formed and positioned in the thick state part Way. A step of extruding the plastic raw material pellets from the extruder 6 through the mold 16 into the circular pipe 2,
Cooling the pipe (2) while passing the pipe (2) sequentially toward the vacuum tank cooler (7) and the cooler (8) after the extrusion process;
Withdrawing the pipe (2) to the dispenser (10) after the cooling process,
And cutting the pipe (2) with a cutter (12) after the pulling out process, the pipe forming method comprising:
During the extrusion process, the number of revolutions of the screw of the extruder (6) is increased to a constant number of revolutions for a predetermined time in a state where the number of revolutions of the motor of the withdrawer (10) is fixed constantly, , The pipe (2) is extruded from the extruder (6) while repeating a thin state and a thick state at regular intervals, and a bonding hole is formed and positioned in the thick state portion Way.






KR1020150085025A 2015-06-16 2015-06-16 Pipe forming method and structure for fish holding nursery KR101682300B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150085025A KR101682300B1 (en) 2015-06-16 2015-06-16 Pipe forming method and structure for fish holding nursery

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Application Number Priority Date Filing Date Title
KR1020150085025A KR101682300B1 (en) 2015-06-16 2015-06-16 Pipe forming method and structure for fish holding nursery

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KR101682300B1 true KR101682300B1 (en) 2016-12-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210118586A (en) * 2020-03-23 2021-10-01 오상훈 Frame reinforcement structure for fixing a net for aquaculture and its manufacturing method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10128829A (en) * 1996-10-29 1998-05-19 Mitsubishi Plastics Ind Ltd Manufacture of synthetic resin pipe and its cooling water tank
KR100975096B1 (en) * 2009-03-30 2010-08-11 최광호 Moving-type roasting device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10128829A (en) * 1996-10-29 1998-05-19 Mitsubishi Plastics Ind Ltd Manufacture of synthetic resin pipe and its cooling water tank
KR100975096B1 (en) * 2009-03-30 2010-08-11 최광호 Moving-type roasting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210118586A (en) * 2020-03-23 2021-10-01 오상훈 Frame reinforcement structure for fixing a net for aquaculture and its manufacturing method
KR102429985B1 (en) 2020-03-23 2022-08-05 오상훈 Frame reinforcement structure for fixing a net for aquaculture and its manufacturing method

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