CN201180240Y - A four-strand polyethylene twisted rope for deep-water cages or ocean-going trawls - Google Patents

Abstract

A four-strand polyethylene twisted rope for deep-water net cages or ocean-going trawls, which relates to ropes for deep-water net cages or ocean-going trawls. The technical problem to be solved is to reduce the rotation phenomenon of the ropes and improve the safety of deep-water net cages or ocean-going trawls. The new type uses 0.20mm diameter fishing polyethylene monofilament as the yarn for rope making, which is characterized in that the total number of wires for rope making is 1216, the number of strands for rope making is 4, the number of yarns for rope strands is 9, and the number of yarns for rope yarn is The number of threads is 32, the twist of the rope yarn is 36T/m, the lay distance of the strands is 57.6mm, the lay distance of the rope is 59.0mm, the rope core is filled in the central part of the rope, the twist of the rope core is 54T/m, and the rope core is made of silk roots The number is 64, and the rope is made of "Z/S/Z" twist direction. The utility model is suitable for deep-water net cage line, ocean-going trawl line, inverted anchor line for positioning anchor displacement, float rope for mooring system and "special rope material" for super-large mesh of ocean-going trawl.

Description

A four-strand polyethylene twisted rope for deep-water cages or ocean-going trawls

Technical field:

The utility model relates to a rope for a deep-water cage or an ocean-going trawl in the field of agricultural and aquatic products.

Background technique

Rope is a material widely used in fishery. Its classification is divided into twisted rope, twisted rope and braided rope according to the rope making process. According to the base material for rope making, it is divided into polyester rope, polyethylene rope, polypropylene rope and nylon rope. Divided into three-strand rope, four-strand rope, six-strand rope, eight-strand rope and multi-strand rope.

Deep water net cage is a kind of intensive marine fish breeding complete equipment gradually developed in recent years, which has the advantages of good quality of adult fish and small impact on the environment. At present, the number of deep-water cages in my country has reached more than 3,200, and the main cultured fish are large yellow croaker, sea bass, black sea bream, squid and American red fish.

China is one of the major pelagic fishery countries in the world. The development of pelagic fishery not only reduces the fishing pressure on inshore fishery resources, but also plays a positive role in national economic and social development, and improves China's status in international fishery. China's distant water fishery mainly includes trawling, fishing, sledding, etc. Among them, the distant water trawling operation is an important part of China's distant water fishery.

Deep-water cages or pelagic trawls are the development direction of modern fisheries. However, during the development of deep-water cages or ocean-going trawls, some problems that need to be solved have also been exposed. For example, the three-strand polyethylene twisted rope used for deep-water cage culture or ocean-going trawls in bad weather is prone to rotation, and the four-strand polyethylene twisted rope used for fishing There is a lack of rope research, insufficient basic theoretical data, a single variety of materials, and poor research and development of new materials.

Rope breaking strength, rope structure, properties of the base material used for rope making, and rope making technology all play an important role in the safety and wind and wave resistance of deep-water cages or ocean-going trawls. The development of new materials for four-strand polyethylene twisted ropes for deep-water cages or ocean-going trawls can reduce the rotation phenomenon of ropes used in cage culture or ocean-going trawls, improve the safety of deep-water cages or ocean-going trawls, and increase the resistance of deep-water cages or ocean-going trawls to wind and waves. Performance is very important. The type of rope matrix material and its rope-making process are important factors affecting the mechanical properties of twisted fishing rope materials. Ordinary twisted fishing ropes can be produced by using ordinary polyethylene monofilament as materials and using conventional rope-making processes. The tensile mechanical properties of ordinary twisted fishing ropes are general. Only by adopting high-quality polyethylene monofilament and special rope-making process can the twisted rope be endowed with excellent mechanical properties. The strength of polyethylene monofilament (the breaking strength index of superior product of polyethylene monofilament in SC 5005 "Ethylene Monofilament for Fishing" in the aquatic industry standard is 5.6cN/dtex) and the rope making process will affect the twisted rope material for fishing. The mechanical properties have a great influence, and the strength of polyethylene monofilament is an important factor affecting the properties of fishing twisted rope materials, especially the mechanical properties. Rope-making process is also an important factor affecting the properties of fishing twisted rope materials, especially the mechanical properties. For twisted fishing ropes with the same diameter, the total number of wires used for rope making, the number of strands used for rope making, the number of yarns used for rope strands, the number of wires used for rope yarns, the twist of rope yarn, the twist length of strands, and the twist length of rope , Whether the center of the rope is filled with a rope core, the twist of the rope core, the number of wires used for the rope core, the twist direction used for making the rope, etc., will change the structure of the twisted rope for fishing.

Utility model content

The technical problem to be solved by the utility model is to reduce the rotation phenomenon of the ropes used for cage culture or ocean trawl, improve the safety of deep water cages or ocean trawls, and increase the anti-storm performance of deep water cages or ocean trawls.

The technical scheme of the utility model adopts the ordinary polyethylene monofilament for fishing with a diameter of 0.20mm as the yarn for making the rope, which is characterized in that the total number of yarns for the rope is 1216, the number of strands for the rope is 4, and the number of yarns for the strands 9. The number of threads used for rope yarn is 32, the twist of rope yarn is 36T/m, the lay length of strands is 57.6mm, the lay length of rope is 59.0mm, the rope core is filled in the central part of the rope, and the twist of rope core is 54T/m , The number of wires used for the rope core is 64, and the rope is made of "Z/S/Z" twisting direction, that is, the polyethylene monofilament for fishing is divided into a tube with 32 or 64 monofilaments in each bundle Packed monofilaments; Twisting each bundle of 32 monofilaments in a "Z" twist direction into a Z-twisted rope yarn, and twisting each bundle of 64 monofilaments in a "Z" twist direction Twisted into a Z-twisted rope core; then 9 Z-twisted rope yarns are twisted in the "S" twist direction into an S-twisted rope strand; finally, 4 S-twisted rope strands and a Z-twisted rope core are processed into a diameter of 12.0 mm four-strand polyethylene twisted rope, the rope core is filled in the center of the rope.

The utility model effectively combines the fishing polyethylene monofilament with a special rope-making structure to produce a four-strand polyethylene twisted rope suitable for fishery production. The mechanical test results show that under the same diameter (diameter is 12.0mm) , the breaking strength of the utility model reaches 15.65kN, and the breaking strength is better than the index stipulated in the GB/T 18674 standard. The improvement of the mechanical properties of the twisted rope for fishing can not only reduce the rotation phenomenon of the rope used in cage culture or ocean trawl, but also ensure the safety of deep water cages or ocean trawls, increase the anti-wind and wave performance of deep water cages or ocean trawls, and can be used as Deep-water cage line, ocean-going trawl line, inverted anchor line for positioning anchor displacement, floating ball line for mooring system, and "special rope material" for super-large mesh of ocean-going trawl, which have good economic, social and ecological benefits benefit.

Description of drawings

Accompanying drawing is a kind of structure diagram of four-strand polyethylene twisted rope for deep-water cage or ocean-going trawl.

Detailed ways

The best way to implement the utility model is illustrated below in conjunction with the accompanying drawings:

The monofilament material used in the utility model is ordinary polyethylene monofilament with a diameter of 0.20mm for fishing, and its breaking strength can reach 6.1cN/dtex, which is better than the superior product index specified in the SC 5005 standard. The number of monofilaments for each rope yarn 5 is 32, the diameter of rope yarn 5 is 1.6mm, and the diameter of rope strand 2 is determined to be 6.2 according to the diameter of rope 1 of 12.0mm and the diameter of rope yarn 5 of 1.6mm. mm, the total number of monofilaments used for rope making is 1216, the number of strands used for rope making is 4, the number of yarns used for rope strands is 9, the number of yarns used for rope yarns is 32, the twist of rope yarns is 36T/m, and the number of strands twisted The distance is 57.6mm, the rope lay length is 59.0mm, the rope core is filled in the center of the rope, the rope core twist is 54T/m, the number of wires used for the rope core is 64, and the rope is made of "Z/S/Z" twist direction , to increase the strength utilization rate of the monofilament used for rope making and the breaking strength of the rope, that is, the rope making machine twists 32 polyethylene monofilaments 6 for fishing into a rope yarn 5 with a diameter of 1.6mm in the "Z" direction, using 36T Twist 36 "Z" rope yarns with a twist of /m into "S" rope strands 2 with a twist length of 57.6mm, and 64 fishing polyethylene monofilaments 4 in "Z" direction by the rope making machine Twisted into a rope core 3 with a diameter of 2.2 mm, the rope core is filled in the central part of the rope 1 when making the rope; twist the four "S" strands 2 in the "Z" direction to make a rope structure of four strands, and the rope lay length is 59.0mm, 12.0mm diameter four-strand polyethylene twisted rope 1.

The utility model produces a four-strand polyethylene twisted rope suitable for deep-water cages or ocean-going trawls. The main technical indicators are practical, reasonable and reliable, and have the effect of improving the performance of traditional twisted ropes. The results of mechanical tests and production practice show that a four-strand polyethylene twisted rope for deep-water cages or ocean-going trawls can not only reduce the gyration of the ropes used in cage culture or ocean-going trawls, but also improve the safety of deep-water cages or ocean-going trawls. It is economically feasible to increase the anti-wind and wave performance of deep-water cages or ocean-going trawls in fisheries, and it is of great significance to promote the sustainable and healthy development of modern fisheries in my country.

Claims (2)

1. A four-strand polyethylene twisted rope for deep-water cages or ocean-going trawls, which uses ordinary polyethylene monofilaments for fishing with a diameter of 0.20mm as the wire for making ropes, and is characterized in that the total number of wires for making ropes is 1,216, The number of strands is 4, the number of yarns for rope strands is 9, the number of yarns for rope yarns is 32, the twist of rope yarn is 36T/m, the twist length of strands is 57.6mm, and the twist length of rope is 59.0mm. The rope core is filled, the twist of the rope core is 54T/m, the number of wires used for the rope core is 64, and the twist direction of the rope is "Z/S/Z", that is, the polyethylene monofilament for fishing is made after being separated by a spinning machine. Each bundle contains 32 or 64 monofilaments in a package; the packaged monofilaments containing 32 monofilaments in each bundle are twisted into Z-twisted rope yarn in the "Z" twist direction, and each bundle contains 64 monofilaments The monofilament in the package is twisted in the "Z" direction to form a Z-twisted rope core; then 9 Z-twisted rope yarns are twisted in an "S"-twisted direction to form an S-twisted rope strand; finally, 4 S-twisted rope strands and A Z-twisted rope core is processed into a four-strand polyethylene twisted rope with a diameter of 12.0mm. 2. A four-strand polyethylene twisted rope for deep-water cages or ocean-going trawls according to claim 1, characterized in that the yarn diameter is 1.6mm, the strand diameter is 6.2mm, and the core diameter is 2.2mm.

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