KR20220143265A - Manufacturing apparatus for geogrid having impregnatioin device capable of dewatering - Google Patents

Abstract

The present invention provides an apparatus for manufacturing geogrid having an impregnation device capable of dewatering comprising: a yarn winding roll; an impregnation machine that supports a portion of the yarn winding roll to be rotatable in a submerged state; a pressure roller disposed in rolling contact with the upper side of the yarn winding roll; and a tension roller disposed to press one side of the yarn compressed and drawn between the pressure roller and the yarn winding roll, but to press the opposite side of the pressure roller in the pressing direction.

Description

Geogrid manufacturing apparatus having an impregnator capable of dehydration

The present invention relates to a geogrid manufacturing apparatus having an impregnator capable of dehydration, and more particularly, to a geogrid manufacturing apparatus having an impregnator capable of dehydration capable of performing a dewatering function while performing a coating process of a yarn winding roll. .

Attempts to use textile materials for various civil works have been around for a long time, and geogrid, a polymer synthetic resin product, has been developed to obtain more economical and effective materials. It is widely used for reinforcement, drainage, separation, containment and erosion prevention materials.

In the early 1970s, when geogrid was used in earnest, it was mainly used for the purpose of preventing scouring and filtering of soil, but after that, it has been widely used as a function of separation, reinforcement, or drainage of the ground. It is used for protection and shock absorption purposes. In particular, the geogrid according to the present invention is widely used in soft ground reinforcement, retaining wall reinforcement, slope reinforcement, etc. because the upper and lower geogrid layers are integrated and not separated by the inflow of soil through the grid.

The geogrid may be manufactured as a mesh in the form of a grid by collecting warp yarns of several strands to form warp ribs, and gathering several strands of weft yarns to form weft ribs. The manufacturing process of the geogrid is, as is known, to be manufactured through the processes of weaving, coating, drying, and winding, and each process is performed individually or continuously.

In the manufacturing process of the geogrid, the geogrid in the form of a grid formed of warp ribs and weft ribs in the weaving process is coated with a coating solution. The coating improves the durability and stability of the geogrid by fixing the lattice shape of the geogrid more firmly.

The geogrid coated with the coating solution passes through a drying device, and the coating solution applied on the geogrid hardens. Therefore, the geogrid fixed by the coating solution has improved durability and stability.

However, when passing through the impregnator, the coating solution is excessively soaked, and if two spin-drying rolls are installed up and down to twist the yarn in an 'S' shape, the coating hardens on the dewatering roll in the long run, and the dewatering effect is reduced.

In addition, since the drying speed is increased and the electric capacity of the heating element in the drying room is increased, there is a problem that the electric power cost is also increased.

Korean Patent Registration No. 10-1926794 (2018.12.07. Announcement)

The present invention has been devised to solve the above problems, and it is an object of the present invention to provide a geogrid manufacturing apparatus having an impregnator capable of dehydration so as to simultaneously perform a dewatering function in the process of coating yarn during the geogrid manufacturing process. .

A geogrid manufacturing apparatus having an impregnator capable of dehydration according to an embodiment of the present invention is a yarn winding roll, an impregnator supporting a portion of the yarn winding roll to be rotatably submerged in a submerged state, and rolling on the upper side of the yarn winding roll It may include a pressure roller disposed to be in contact and a tension roller disposed to press one side of the yarn that is compressed and drawn out between the pressure roller and the yarn take-up roll, and the opposite side of the pressure roller in the pressing direction.

A support frame disposed to be spaced apart from the impregnator, and one end coupled to the center of rotation of the pressure roller, and the other end may include a pivot arm hinged to the support frame so that the pressure roller is rotatable in a height direction.

It may include an auxiliary tension roller disposed on the downstream side of the tension roller and disposed to press the opposite side of the contact surface of the yarn in rolling contact with the tension roller.

It may further include a movable roller disposed on the downstream side of the auxiliary tension roller and movably disposed along the height direction.

It may include a guide rail for guiding the linear movement along the height direction of the movable roller.

Further comprising a detection member for detecting the height of the yarn winding roll,

The height of the movable roller may be controlled according to the height detected from the detection member.

A geogrid manufacturing apparatus having an impregnator capable of dehydration according to an embodiment of the present invention having the above configuration may simultaneously perform a dehydration function in a process of coating a yarn during a geogrid manufacturing process.

1 schematically shows an apparatus for manufacturing a geogrid having an impregnator capable of dehydration according to an embodiment of the present invention.
FIG. 2 shows a state in which the yarn take-up roll is rotated at a predetermined angle in the state of FIG. 1 .

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully inform those skilled in the art of the scope of the present invention, and the present invention is only defined by the scope of the claims.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural, unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components. Like reference numerals refer to like elements throughout, and "and/or" includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein will have the meaning commonly understood by those of ordinary skill in the art to which this invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly specifically defined.

Spatially relative terms "below", "beneath", "lower", "above", "upper", etc. It can be used to easily describe the correlation between a component and other components. A spatially relative term should be understood as a term that includes different directions of components during use or operation in addition to the directions shown in the drawings. For example, when a component shown in the drawing is turned over, a component described as “beneath” or “beneath” of another component may be placed “above” of the other component. can Accordingly, the exemplary term “below” may include both directions below and above. Components may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to orientation.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 schematically shows a geogrid manufacturing apparatus having an impregnator capable of dehydration according to an embodiment of the present invention, and FIG. 2 shows a state in which the yarn winding roll is rotated at a predetermined angle in the state of FIG. 1 .

First, referring to FIG. 1 , a geogrid manufacturing apparatus having an impregnator capable of dehydration according to an embodiment of the present invention is a yarn winding roll 110 , an impregnator 100 , a pressure roller 220 , and a tension roller 300 . ) may be included.

In this embodiment, the geogrid manufacturing apparatus may apply a coating solution to the yarn (S) wound on the yarn take-up roll 110 and then dry it, making the geogrid in the form of a coated finished product. Specifically, the geogrid manufacturing apparatus applies a coating solution on the yarn (S), dries the coated coating solution, and controls it to be dried to a uniform width, and winds the finished product of uniform quality onto a packaging roll (not shown). It can be taken and discharged the finished product.

The yarn S wound on the yarn take-up roll 110 may be a geogrid formed in a grid shape by a plurality of warp ribs and a plurality of weft ribs. At this time, the yarn S, which is a geogrid supplied from the yarn winding roll 110, is in a state before the coating solution is coated.

The process of the yarn S may be performed along the direction in which the yarn S is supplied (the direction from the yarn winding roll (to the tension roller 300 to be described later) side) with reference to FIG. 1 .

The impregnator 100 applies a coating solution to the yarn (S). By coating the yarn (S) with a coating solution, it is possible to increase the durability and stability of the yarn (S) by fixing the lattice-shaped warp and weft ribs.

The impregnator 100 may include a coating solution tank, a coating solution supply valve, a coating tank, and a coating roller, although detailed configurations of each are not shown. The coating solution stored in the coating solution tank may be supplied to the coating tank through the coating solution supply valve.

The impregnator 100 may contain or store a coating solution for coating the yarn S. In this case, the yarn winding roll 110 may be rotatably disposed inside the impregnator 100 .

Here, the coating solution contained or stored in the impregnator 100 may be contained or stored at least to a height close to the center of the rotation support shaft 101 located inside the impregnator 100 .

The yarn take-up roll 110 rotates about the rotation support shaft 101 in a state located inside the impregnator 100, and is coated with a coating solution in the impregnator 100 and at the same time a pressure roller to be described later ( 220) makes dehydration possible.

The pressure roller 220 may be disposed so as to be in rolling contact with the upper side of the yarn take-up roll 110 .

The yarn take-up roll 110 is rotated around the rotation support shaft 101 inside the impregnator 100, and for example, the yarn S by the yarn take-up roll 110 rotates clockwise in the right side of the drawing. can be withdrawn.

While the yarn S is immersed in the coating solution while the yarn winding roll 110 is rotated in the coating solution accommodated in the impregnator 100, the coating solution may be sufficiently applied on the yarn S. By applying the coating solution to the yarn (S), the yarn (S) can be improved in stability and durability.

The pressure roller 220 may remove the excess coating solution on the yarn S by pressing the yarn S to which the coating solution is applied, and evenly apply the coating solution on the yarn S.

Here, the pressure roller 220 presses the upper side of the yarn take-up roll 110 by its own weight, and applies a pressing force to the yarn S against the yarn take-up roll 110 while the yarn take-up roll 110 is rotated. Since it is continuously supplied, when the yarn take-up roll 110 rotates, the yarn S is drawn out and a dehydration action is performed at the same time.

In addition, the support frame 200 may be disposed to be spaced apart from the impregnator 100 . At this time, one end is coupled to the rotation shaft 221 of the pressure roller 220, and the other end is hinged to the support frame 200 so that the pressure roller 220 can rotate in the height direction may be included. have.

In other words, one end of the pivoting arm 210 is coupled to be pivotable about the hinge shaft 201 on the support frame 200 , and the other end supports the rotational movement of the pressure roller 220 , so that the pressure roller 220 . ) is rotated by rolling contact on the yarn take-up roll 110 and at the same time it is movable along the height direction so that rolling contact can be maintained along the irregular outer circumferential surface of the yarn take-up roll 110 .

A tension roller 300 disposed on the downstream side of the yarn take-up roll 110 and disposed to press the opposite side of the contact surface of the yarn in contact with the yarn take-up roll 110 may be included.

In addition, an auxiliary tension roller 310 disposed on the downstream side of the tension roller 300 and disposed so that the yarn S is wound in a direction opposite to that of the tension roller 300 may be included.

In other words, the tension roller 300 is wound in the opposite direction to the direction in which the yarn S is wound on the yarn take-up roll 110, and the auxiliary tension roller 310 is again located in the opposite direction of the tension roller 300 ( (approximately 'S' shape), the auxiliary tension roller 310 may perform a function of auxiliaryly extending the tension of the yarn provided by the tension roller 300 .

In addition, a movable roller 320 disposed on the downstream side of the auxiliary tension roller 300 and movably disposed along the height direction may be included.

Here, the guide member 330 for guiding the linear movement along the height direction of the movable roller 320 may be formed. The guide member 330 is a guide formed in a long hole shape having a predetermined length along the height direction. A rail 331 may be provided. That is, the central axis of the movable roller 320 may be linearly movable along the guide rail 331 .

The movable roller 320 controls the tension of the yarn S drawn out from the yarn take-up roll 110 while moving along the height direction.

1 and 2 together, the yarn S wound on the yarn take-up roll 110 is in an irregular state in which each is wound and closely adhered, or a change in the center of gravity due to the weight of the coating solution is added to the yarn take-up roll ( The radius of 110 is irregular, and as a result, the height h1 is continuously varied during the rotation of the yarn take-up roll 110 .

For example, when the height of the yarn take-up roll 110 located in the impregnator 100 is h1 on the upper side of the yarn take-up roll 110 as in the state of FIG. 1 , the height of the movable roller 320 is set to h2 When the height of the yarn winding roll 110 positioned in the impregnator 100 is h1' while the yarn winding roll 110 is rotated in the impregnator 100 as in the state of FIG. 2 , , the height of the movable roller 320 may be controlled to be positioned as h2'.

That is, when the height of the yarn take-up roll 110 is h1', compared to the case of h1, the yarn S tends to loosen, so the height of the movable roller 320 is h2 in order to optimally maintain the tension. By controlling it to be positioned at ', it is possible to prevent a decrease in tension.

In addition, a detection member (not shown) for detecting the height of the yarn winding roll 110 may be further included. As the detection member, various sensors for detecting the highest point of the upper end of the yarn take-up roll 110 may be used, and for example, when the measurement height is reached, the height of the movable roller 320 is controlled to a predetermined height so that the yarn (S) ) can be controlled in real time.

A fixed roller 340 disposed on the downstream side of the movable roller 320 and rotatably disposed in a fixed state may be provided.

That is, the yarn S that has passed through the pressure roller 220 has the excess coating solution removed, and the tension roller 300, the auxiliary tension roller 310, the movable roller 320 and the fixed thickness are maintained. It may be guided to a drying device (not shown) via a roller 340 .

The drying device may dry the coating solution applied to the yarn (S).

The drying device may be provided with devices for drying the coating service applied to the yarn (S). For example, it may include a housing (not shown), an opening/closing unit, a heating unit, a temperature sensing unit, a blower, a lower guide bar and an upper guide bar, a control unit, and the like.

Therefore, the geogrid manufacturing apparatus having an impregnator capable of dehydration according to an embodiment of the present invention can simultaneously perform a dehydration function inside the impregnator in the process of coating the yarn during the geogrid manufacturing process.

As described above, the geogrid manufacturing apparatus having an impregnator capable of dehydration according to the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the above-described embodiments and drawings, and is within the scope of the claims. Various implementations are possible by those skilled in the art to which the invention pertains.

100: impregnator
110: yarn winding roll
200: support frame
210: pivot arm
220: pressure roller
300: tension roller
310: auxiliary tension roller
320: movable roller
330: guide member
331: guide rail

Claims (6)

yarn winding roll;
an impregnator for rotatably supporting a portion of the yarn take-up roll in a submerged state;
a pressure roller disposed in rolling contact with an upper side of the yarn take-up roll; and
Manufacturing a geogrid having an impregnator capable of dehydration, including a tension roller disposed to press one side of the yarn that is compressed and drawn between the pressure roller and the yarn take-up roll, and which is arranged to press the side opposite to the pressing direction of the pressure roller Device. According to claim 1,
a support frame disposed to be spaced apart from the impregnator; and
Geogrid manufacturing apparatus having an impregnator capable of dehydration, comprising a pivot arm having one end coupled to the rotation center of the pressure roller and the other end hinged to the support frame so that the pressure roller can be rotated along the height direction. 3. The method of claim 2,
A geogrid manufacturing apparatus having an impregnator capable of dewatering, comprising an auxiliary tension roller disposed on the downstream side of the tension roller and disposed to press the opposite side of the contact surface of the yarn in rolling contact with the tension roller. 4. The method of claim 3,
A geogrid manufacturing apparatus having a dewatering impregnator, which is disposed on the downstream side of the auxiliary tension roller and further comprises a movable roller disposed to be movable along the height direction. 5. The method of claim 4,
A geogrid manufacturing apparatus having an impregnator capable of dewatering, comprising a guide rail for guiding the linear movement along the height direction of the movable roller. 6. The method of claim 5,
Further comprising a detection member for detecting the height of the yarn winding roll,
A geogrid manufacturing apparatus having an impregnator capable of dewatering, in which the height of the movable roller is controlled according to the height detected from the detection member.

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