KR100636073B1 - Fabrics for civil engineering works with rib and manufacturing method there of - Google Patents

Abstract

The present invention provides a method of weaving a civil fabric having a lip.

In the present invention, the warp yarn and the weft yarn supplied through the weaving yarn, diameter and diameter process, weaving the civil fabric weaving by the potter, the warp yarn is supplied more than the other longitudinal steel in the longitudinal interval of the appropriate interval The lip is formed in the inclined advancing direction, stops the doser at a constant cycle in which the weft is fed, and further supplies the weft, and then restarts the dover to form a lattice rib in the weft direction, the civil engineering according to the present invention Dragon fabrics are lightweight, yet more efficient and exhibit sufficient strength.

Geotextile, textiles, ribs, spreaders, twill, plain weave        

Description

Fabrics for civil engineering works with rib and manufacturing method there of}

1 is a device diagram of the present invention

2 to 5 are weaving flow chart of the present invention

6 is a plan view showing a state in which the present invention is woven

Figure 7 is a plan view of a civil fabric woven in plain weave according to the present invention

Figure 8 is a plan view of a civil fabric woven in twill weave according to the present invention

* Explanation of symbols for the main parts of the drawings

1: Yarn feeder 2: Incline feeder

3: weaving machine 4: weaving machine

5: fabric transfer device 6: dewatering device

7: winding device 40: first-held frame

41: second hand frame 42: third hand frame

43: fourth hand frame 9: body

10: slope 11: weft

The present invention relates to a method of weaving civil fabrics having a lip, which is woven at a high density using a high strength filament yarn of polypropylene or polyester and a longitudinal steel operated in a potter. It is about.

Geotextiles are woven from geotextiles and installed on soft ground, fill slope, excavation slope or reinforcement slope to reinforce the bearing capacity of the river bank to prevent loss of soil due to rainfall and sinking of the ground, or equipment for soft ground improvement construction. It is used to provide strength that can enter.

  Geosynthetics is a polymer synthetic fiber product that solves the problem of weak strength of natural fiber materials. Synthesis of polypropylene, polyester, polyethylene, polyacrynitril, nylon, etc. Geotextile, a porous product formed by weaving fibers, geomembranes, and high-strength geogrids, and geotextile-related products. It is widely used in various civil structures as reinforcement, filter, drainage, separation, containment and erosion prevention materials.

Geotextiles have been growing remarkably since advanced foreign countries first used geotextiles for river banks and slope protection in the early 1960s, and are now used for various purposes in various civil structures. Numerous experimental and theoretical research papers have been published at the International Society of Civil Engineers. Through these studies, more economical and efficient products are developed, and characteristic test methods considering site conditions and theoretical analysis methods to identify the behavior of geotextiles are presented. As a result, the theoretical analysis, design, and reasonable construction of each geotextile have been reached.

The related technologies are also rapidly developing, and in order to prepare for the opening of the domestic construction market in the future, the systematic construction of technologies related to geotextiles such as design, construction, and characteristic test methods, along with the development of new products and new construction methods of geotextiles and broad-scale civil engineering There is an urgent need for research on fiber application methods.

In addition, as civil engineering works such as high speed trains, underground structures, and landfills, as well as large-scale reclamation projects, diversified, larger, and more difficult, the overall reorganization is required. This is more urgent than ever.

In order to cope with such situation, various research results on Geotextile, Geogrids, etc., Fabric Form method, Geolveb method, Plastic board drains method, Pack drain ( New construction methods using geotextiles such as the pack drain method, EPS construction method, etc., and the results of on-site research of structures using these methods have been announced to enhance the development of geotextile technology.

However, despite the fact that the use of geotextiles has increased rapidly each year and active research activities, the design and construction methods of geotextiles applied to various civil structures have not been established. The design and construction are done in terms of experience rather than in terms of aspects, and the geotextiles that are not suitable for the site conditions are used because they are reflected in the design more economically than the functionality of stable reinforcement in design. In addition, many producers are also concentrating on sales rather than product development investment, which is a major impediment to the development of geotextile technology.

Among geotextiles, woven geotextiles are made of filament yarns or spun yarns that cross the warp and weft yarns at right angles. Denier yarns are twisted and used, and fabric density is generally 19 ~ 21 per inch in warp and weft direction. Fiber materials are mainly polyester and polypropylene fibers, but polypropylene fibers have a weak light resistance.

Therefore, when tensile strength and burst strength are required, geotextiles cannot be used alone, and geocomposite fiber composite materials are used.

The conditions for the civil fabric should be chemically acid and alkali resistant, weaved with elasticity and durability, and should be a product that has high shock resistance against vibration, impact and load in construction and is not easily torn during construction.

Therefore, there is a need to be woven at a high density using high-strength filament yarn of polypropylene or polyester.

However, it is not possible to increase the tensile strength and the resistance to cracking and thermal change in the state of being woven into the general structure.

In general, when the fabric is divided into the form of tissue represented by the appearance of the fabric, it is divided into plain weave, silk weave, and twill.

Plain weave is one of the weaving tissues that are classified according to the outer fabric of the fabric. The most basic, simple, and most commonly used fabric is the weaving fabric in which rows and columns are woven side by side with the warp and weft intersecting alternately. .

Twill weave is a step of weft weaving at an angle of about 45 ° to the inclined slope to form a distinct oblique ridgeline on the surface of the fabric, showing a relatively dense and tough structure of tissue, 1,500 denier per unit area It has the feature of weaving high density fabrics.

When weaving civil fabrics into plain weaves using polypropylene or polyester, gaps occur irregularly between the weft and weft yarns, resulting in uneven density, which limits the production of high-density, high-strength fabrics.

The twill can be woven in a dobby machine. Method for weaving civil fabrics using high-strength filament yarn of polypropylene or polyester is known from the Republic of Korea Patent Application No. 10-2004-9616 'civil fabrics and its manufacturing method and apparatus.'

Compared with plain weave fabrics, twill weaves are more flexible and have a higher density of yarns. Twill provides a more satisfactory use effect for civil fabrics.

The present invention is to provide a civil fabric that can form a lip in the woven structure of the civil fabric can be lighter, yet improved and sufficient strength.

The weaving method of the civil fabric for achieving the object intended by the present invention is a yarn and weft yarn that is fed through the yarn, diameter and diameter process, weaving the yarn selected from polypropylene or polyester to be the intended denier In weaving civil fabrics weaved by potters, the sloping is supplied in the longitudinal direction so that the lip is formed in the direction of the slanted progression in the longitudinally spaced longitudinals while feeding the slopes through a plurality of longitudinals. After weaving the weft yarn at regular intervals in which wefts are supplied, the wefts are further supplied, and then the doves are restarted to form lattice ribs in the weft direction in the weaving civil fabric.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Apparatus for manufacturing a civil fabric for the present invention weaving, yarn feeder (1), warp feeder (2), weaving machine (3), dosing machine (4), fabric transfer device (5), dewatering device (6) ) And a winding device (7).

The yarn supply device 1 is a conventional device in which a plurality of cones on which yarns are wound are placed, and the yarns are naturally released from the mounted cones. Preferably, the yarn supply device 1 is capable of supplying the yarns with the maximum fluctuation of the yarns. For example, yarns used as warp yarns 10 are drawn from a plurality of cones in which yarns selected from polypropylene or polyester are wound, comprising a radiation guide device including the configuration disclosed in Utility Model Application No. 20-2000-26466. do.

The inclined feeder 2 aligns the yarns drawn out from the yarn feeder 1, and adjusts the tension to supply the warp yarn 10, the body frame for aligning to feed the yarn used as the warp yarn 10 It is composed of a tension adjusting roller (21) consisting of the assembly of a plurality of rollers (20) and supplies the warp to the weaving machine (3) and the doser (4).

The weaving machine 3 supplies the weft 11 to the inclined 10 to be conveyed, and the weft 11 to supply the weft 11 in a direction orthogonal to the inclined 10 to be conveyed through the circular feeder 2. The weft feeder 12 is provided.

The doser 4 is formed with a plurality of heald frames 40, 41, 42, 43 having longitudinal sections through which the warp passes, and is placed on top of the weaving machine 3 so that the twill structure is woven. It is.

The fabric conveying device 5 is a combination of suitable rollers 50, 51, 52 to discharge the woven fabric 13 from the weaving machine 3 and the potter 4.

Dewatering device (6) is composed of a pair of dehydration rollers (60, 61) and a pair of heater rollers (62, 63), the weave (11) is supplied to the fabric 13 is woven by the water is sprayed while the Water is first removed while passing through the dehydration rollers 60 and 61, and the water contained in the fabric 13 is completely evaporated while continuously passing through the heater rollers 62 and 63.

The winding device 7 has a configuration of a general winding device in which the fabric 13 from which water is removed from the dewatering device 6 is wound.

The process for producing a civil fabric using the apparatus of the present invention includes a weaving step of forming a denier intended for a yarn selected from polypropylene or polyester; A step of twisting the yarn having finished the plywood step; The yarns are finished by weaving the yarns after the weaving process, and weaved to form a general plain weave in the state of completion of the canon and trough process.

Polyester is used 100-150 days thick yarn, the yarn is a high strength twisted yarn 200 ~ 9,000 denier through the weaving process is used as the warp and weft of the suede.

In particular, the density of the warp weaved by twill weaving is 5-25 pieces per inch, weaved by the doser through the weft tension control device to have a uniform tension of the weft yarn supplied to cross the direction of the warp.

It is preferable that the warp yarns and the weft yarns supplied by the yarns form about 2 mm in appearance.

An embodiment of the present invention will be described with reference to the accompanying drawings.

2 to 5 show an embodiment in which the civil fabric of the present invention is woven in a potter.

As referred to in this figure, the doser 4 has four heald frames, namely, a first heald frame 40, a second heald frame 41, a third heald frame 42, and a fourth as in a known configuration. Held frame 43 is installed, each of the plurality of longitudinal beams 44, 45, 46, 47 in the first, second, third, fourth fourth frame 40, 41, 42, 43 The body 9 is rotatably installed on the right side.

A plurality of slopes 10a, 10b, 10c, and 10d that are aligned and supplied are inserted into the through holes of the longitudinal steels 44, 45, 46 and 47, and pass through the longitudinal steels 44, 45, 46 and 47. One inclination 10a, 10b, 10c, 10d is placed in a state capable of being woven through the body 9.

In this state, it is possible to weave civil fabric of plain weave and twill weave.

First, when weaving plain weaves, ribs can be formed in the plain weave tissue by controlling the doves by a method of installing a warp in the longitudinal cavity of the heald frame and a program that controls the doves.

That is, as shown in FIG. 6, two or more slopes are supplied to longitudinal sections 50a, 50b, and 50c which are installed at appropriate intervals while supplying one slope 10 to each longitudinal section 50 so as to be inclined. When the lip 100 is woven and the weft 11 is supplied in this process, the doser 4 is stopped and the first, second, third, and fourth heald frames 40, 41, 42, 43 are stopped. In the state where) is stopped, the inclined 11 is further supplied, and then the dozer 4 is restarted. Lattice ribs 100 and 200 are formed.

Figure 7 shows a plan view of a civil fabric woven into a plain weave as described above.

In addition, the present invention can also be woven into a twill weave lip is formed using the doser 4 as shown in FIG.

In order to be woven into the twill weaving two or more inclined to the longitudinal steel (50a, 50b, 50c) which is installed at appropriate intervals while supplying a single inclined 10 to each longitudinal steel 50 as in the case of weaving plain weave To be.

In this state, as shown in FIG. 2, when the dobby device is driven to raise the first and second held frames 40 and 41, and the third and fourth held frames 42 and 43 descend, the inclination 10a and 10b are obtained. ) Is positioned at the top, and the other inclinations 10c and 10d are positioned at the lower side.

The body 9 is in a reversed state in such a state that the inclinations 10a, 10b, 10c, and 10d are divided up and down, and the inclinations 10a, 10b, 10c, and 10d divided up and down. The weft yarn 11 is horizontally supplied by the water sprayed from the water ejecting device known as the space formed between the body and the body 9. When the weft 11 is supplied, the body 9 advances to the position of the virtual line A to perform one weaving.

At this time, the supplied weft 11 is cut by a cutting means such as a blade (not shown) formed on the side of the weaving machine, and the body 9 is reversed again.

At the same time, as shown in FIG. 3, the weft yarn 11 is resupplied in a state where the first heald frame 40 is lowered and the third heald frame 42 is raised, and then the body 9 is advanced again to move the weft yarn 11. Weaving is performed twice while cutting.

After weaving the body twice, the body 9 rewinds, and as shown in FIG. 4, the second heald frame 41 is lowered and the fourth heald frame 43 is raised, and then the weft 11 is supplied again. (9) moves forward and weaving three times.

After the third weaving, the body 9 is retracted again, and as shown in FIG. 5, the second held frame 41 is raised and the third held frame 42 is lowered, and then the weft 11 is resupplied and the body (9) moves forward and performs four weavings.

In this way, one weft yarn 11 can be woven by twill weaving two warp yarns up and down through the feeder of polypropylene or polyester yarn.

In such a weaving process, a rib is formed in the twill tissue by controlling the heald frame and the doser by a program for controlling the doser.

That is, when the weft yarn 11 is supplied at an appropriate moment, the doser 4 is stopped and the inclined 10 is stopped while the first, second, third, and fourth held frames 40, 41, 42, and 43 are stopped. If the feeder 4 is then re-started, as shown in FIG. 8, the inclined lip 100a in the weft direction and the lip 200a in the weft direction are formed in the weaving civil fabric.

In the above description, it has been described that twill is woven by operating four heald frames. However, as the heald frame is properly operated by a program for controlling the dobby ware, it is possible to weave a civil fabric with various types of twill.

In order to evaluate the mechanical properties of the civil fabrics according to the present invention, the mechanical properties of the civil fabrics with no lip formed while weaving from polypropylene of the same denier and the civil fabrics with the ribs formed by the present invention were tested. As a result, the weight was increased by 0.5%, while the tensile strength was improved by 20%.

In order to test the physical properties of the civil fabrics woven from polyester, the weight of the three existing samples woven from polyester and three test samples woven from polyester according to the present invention were tested. While 0.5% increased, the tensile strength improved about 20%.

The present invention by forming a new rib in the plain weave and twill weave of the civil fabric weaving by dispersing the inclined density by using a dobby machine, the strength is increased to prevent soil outflow from the soft ground, sediment cut surface or newly formed Not only does it collapse, but also provides sufficient strength for the equipment to enter, providing the optimum effect as a fabric used as a civil engineering mat.

Claims (3)

In weaving civil fabrics, in which weaving yarns, warp yarns and warp yarns supplied through weaving, straightening and narrowing processes are woven into lattice weaves of plain and twill, While supplying the inclination 10 to the plurality of longitudinal steel 50 continuously installed, the inclined is further supplied to the longitudinal steel (50a, 50b, 50c) are installed at appropriate intervals so that the rib 100 is formed in the inclined advancing direction To stop the dosing device 4 at a constant cycle in which the weft yarns 11 are supplied, further supply the weft yarns, and then restart the dobby 4 machine to form lattice ribs 200 in the weft direction. A method of weaving a civil fabric with a lip. delete delete

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