KR101325482B1 - Method for manufacturing extrusion profile using long fiber complex materials made from thermoplastic resin impregnated and manufactured window profile by that method - Google Patents

Abstract

The present invention relates to a method for producing an extrusion profile using a long fiber composite impregnated with a thermoplastic resin and to a window profile produced by the method, comprising: a primary extrusion mold into which a long fiber and an extruded resin are added together; An impregnation unit connected to the outlet of the primary extrusion mold to impregnate the extruded resin into the filaments of the long fibers; An induction roll connected to an outlet of the impregnation unit; Heating rolls spaced apart from the guide rolls; Method for producing an extrusion profile using a long-fiber composite impregnated with a thermoplastic resin by using a facility consisting of a secondary extrusion mold that is added to the heated composite material and the synthetic resin for manufacturing the profile for the window and then extruded to create an extrusion profile inserting the composite material To; Injecting the long filaments of the bundle form into the first extrusion mold in a state of wide spread while at the same time extrudes the thermoplastic resin toward the long fiber through a resin extruder connected to the first extrusion mold while forming a predetermined angle with the input direction of the long fibers. The first step to do; The long fiber and the thermoplastic resin drawn out through the first step are pressed in the impregnation unit, and after bending and folding, which are combined with a plurality of twists, are pressed again horizontally to allow the thermoplastic resin to penetrate deeply into the filament filaments. A second step of evenly and uniformly impregnating the composite; A third step of guiding the composite material drawn out through the second step in a predetermined direction with an induction roll and then flattening the surface of the composite material through a heating roll and preheating to a temperature suitable for subsequent extrusion; A fourth step of inserting the composite material preheated through the third step into the second extrusion mold and simultaneously inserting the composite material for the manufacture of the window profile and extruding the composite material to be inserted into the synthetic resin; Provided is a method for producing an extrusion profile using a long fiber composite impregnated with a resin.
According to the present invention, a method of impregnation of a folding method, which has not been disclosed so far, is proposed so that the thermoplastic resin, which is an impregnation liquid, is completely impregnated to the inner depth of the filament constituting the fiber bundle, thereby further improving the mechanical properties, corrosion resistance, and resistance of the filament. It maximizes, improves the quality by making even and uniform impregnation, and can be extruded into the window profile immediately after impregnation, which improves productivity and prevents process loss, and installs a confirmation window to quickly and easily diagnose and repair faults. Can be obtained.

Description

TECHNICAL FIELD OF THE INVENTION A method for manufacturing an extrusion profile using a long fiber composite impregnated with a thermoplastic resin, and a window profile manufactured by the method.

The present invention relates to a method for producing an extrusion profile using a long fiber composite impregnated with a thermoplastic resin, and to a window profile produced by the method, and more particularly, to a long fiber composite material having a fibrous structure. When the fiber is uniformly spread, the resin is impregnated as uniformly as possible, and the long-fiber composite material, which improves mechanical strength, corrosion resistance and resistance, is continuously extruded into the window profile without being separated from the impregnation process, thereby improving productivity. The present invention relates to a method for producing an extrusion profile using a long fiber composite impregnated with a thermoplastic resin capable of reducing process and achieving a process efficiency, and a window profile manufactured by the method.

In general, a method of coating individual filaments constituting the fiber bundle with a resin is used as a method for improving the mechanical strength, corrosion resistance, or resistance of the fiber bundle (especially glass fiber).

In this case, the uniform resin coating has a very important influence on the properties of the long fiber composite material (GMT, LFT, etc.) so that the filament of the fiber filament constituting the fiber bundle can be completely in contact with the resin It is necessary to widen the contact area between the resin and the resin or to force the resin to penetrate between the filaments in the fiber bundle, that is, between the pores of the fiber filament concentrator.

In this case, there is no great difficulty in coating the fiber filaments when the resin used is a low viscosity resin, but in the case of a high viscosity resin, it is very difficult to coat the individual fiber filaments.

For this reason, long fiber composites using high viscosity resins have not been manufactured or commercialized in Korea.

As a coating method of continuous fiber bundles (fiber filament concentrators) using high viscosity resins, which are widely used to date, a cylinder- or bar-shaped device is zigzagly installed in an impregnated tank filled with resin, and the fiber bundles are zigzag along the device. As the process proceeds, a method of spreading the fiber bundles widely on the surface of the cylinder or bar to easily infiltrate the resin into the fiber bundles, and fixing and placing a plurality of donut rings in a straight line in the impregnation tank, There is a method of expanding the contact area between the resin and the filament by expanding the fiber bundle as far as possible in the state in contact with the inner and outer surfaces of the ring.

The former method is described in US Pat. No. 4,549,920 and US Pat. No. 4,439,387. The latter method is introduced in US Pat. Nos. 4,728,387, US Pat. No. 5,133,282, Domestic Patent No.0203471 and 0221361, and the like.

By the way, the former method disclosed in the above-mentioned US patents is that when the viscosity of the resin to be impregnated to a certain degree or more, the individual filaments are not completely impregnated with these resins to produce a long fiber composite obtained therefrom, The problem is that the dispersibility of very poor.

In addition, when the fiber bundle is dispersed and attracted from the surface of the cylindrical cylinder arranged in a zigzag, the filament in the center of the dispersed fiber bundle and the filament at the edge side are different, so that the tension is unevenly generated.

Meanwhile, in the case of the US patents and domestic patents disclosed by the latter method, a coating method by fiber unfolding is introduced. In this case, the filaments constituting the continuous fiber bundle are not always unfolded uniformly. There was a problem that the filaments are gathered at the vertex or divided at both ends of the pin or at various places of the pin.

In addition, if the concave and convex surfaces are not designed such that each filament moves the same distance, countless strands of filaments constituting the continuous fiber bundle are moved at different speeds and fractured by adjacent other filaments. Problems also arise.

In order to solve this problem, US Patent No. 5,133,282 has been disclosed, which is a technique of collecting each filament of the fiber bundle symmetrically from the first coming concave pin, and then radially spreading on the second coming convex pin.

However, in order to unfold the fiber bundle to the widest on the convex surface, there are disadvantages in that there are too many variables to consider, such as design variables related to the geometry of the convex pins and concave pins, and horizontal and vertical distances of the convex pins and concave pins.

In addition, the domestic patent is interpreted as an attempt to reduce the possibility of fiber breakage that can occur between each filament using a donut-shaped device.

However, in this case, since the donut-shaped device is fixed in place, when the continuous fiber bundle is pulled and pulled on the donut-shaped device, the tension can be generated by the friction in the longitudinal direction of the fiber bundle. There is a disadvantage that it is impossible to obtain a product of uniform quality when producing a product at high speed.

In order to further improve this, Korean Patent Publication No. 2000-0024343 has been disclosed.

According to the disclosure, a plurality of rotatable fixed rotating mechanisms (jar-shaped rollers) and vertical movable rotating mechanisms are respectively installed in an impregnation tank or an impregnation die supplied with a high viscosity liquid resin or a molten resin for coating each fiber filament. Since the rotating mechanism rotates in the direction of movement of the fiber bundle, the amount of tension generated when the fiber bundle is pulled can be reduced, and at the same time, the contour of the surface where the fiber bundle is distributed is circular (circular) so that each filament By uniformly dispersing, it can be seen that the individual fiber filaments constituting the focusing body can be easily dispersed while being crushed by excessive tension while being easily dispersed.

In this case, however, there has been considerable progress in the breaking or widening of the fiber bundles. However, raising the line speed does not impregnate the impregnation solution evenly, which leads to deterioration of the properties, and also to the inside of the filament. The disadvantage is that only some of them are impregnated.

In addition, in order to make the profile for the windows and doors in the field of the present invention, such a thermoplastic fiber-impregnated long fiber composite material is first made of a long fiber composite material, and then moved to an extrusion process to put into an extruder capable of making a profile. Extrusion profiles for windows and doors had to be manufactured separately, which also had disadvantages such as cost increase, yield decline, and airlift.

In addition, since the impregnation unit is operated in a sealed state in the prior art, as well as the above-described disclosure technology, it is difficult to check at which site a failure occurs when a failure occurs inside, and after disassembling the entire facility, diagnosing a failure site and then replacing it The process loss was very large because it had to be repaired or repaired.

The present invention has been made in view of the above-mentioned problems in the prior art, and has been created to solve this problem. The unique arrangement of the filament jet roll so as to uniformly impregnate the inside of the filament of the fiber bundle impregnation solution, that is, the thermoplastic resin is buried By folding and pressing in the state, even and uniform impregnation is achieved, and a window profile extruder is continuously installed at the exit end of the impregnation unit to extruding the long-fiber composite immediately after impregnation for process and transportation loss. The main object of the present invention is to provide an extrusion profile manufacturing method using a long fiber composite material impregnated with a thermoplastic resin so that the extrusion profile can be continuously produced in an impregnation operation, and a window profile produced by the method.

The present invention is a means for achieving the above object, the first extrusion mold in which the long fiber and the extruded resin are put together; An impregnation unit connected to the outlet of the primary extrusion mold to impregnate the extruded resin into the filaments of the long fibers; An induction roll connected to an outlet of the impregnation unit; Heating rolls spaced apart from the guide rolls; Method for producing an extrusion profile using a long-fiber composite impregnated with a thermoplastic resin by using a facility consisting of a secondary extrusion mold that is added to the heated composite material and the synthetic resin for manufacturing the profile for the window and then extruded to create an extrusion profile inserting the composite material To; Injecting the long filaments of the bundle form into the first extrusion mold in a state of wide spread while at the same time extrudes the thermoplastic resin toward the long fiber through a resin extruder connected to the first extrusion mold while forming a predetermined angle with the input direction of the long fibers. The first step to do; The long fiber and the thermoplastic resin drawn out through the first step are pressed in the impregnation unit, and after bending and folding, which are combined with a plurality of twists, are pressed again horizontally to allow the thermoplastic resin to penetrate deeply into the filament filaments. A second step of evenly and uniformly impregnating the composite; A third step of guiding the composite material drawn out through the second step in a predetermined direction with an induction roll, and then planing the surface of the composite material through a heating roll and preheating for subsequent extrusion; A fourth step of inserting the composite material preheated through the third step into the second extrusion mold and simultaneously inserting the composite material for the manufacture of the window profile and extruding the composite material to be inserted into the synthetic resin; Provided is a method for producing an extrusion profile using a long fiber composite impregnated with a resin.

At this time, inside the impregnation unit, the first compression roll unit to be horizontally compressed, the first twist stroke unit to be bent in a 'V' shape while twisting, the folding roll unit to be vertically compressed while folding in the bent direction, and the 'V' twisted again. The second twist roll portion to be bent into a shape, the second pressing roll portion to horizontally crimp the bent portion, are sequentially arranged at intervals from the inlet end to the outlet end, and the second step is performed through this arrangement. It also has its features.

In addition, the impregnation unit is further provided with a confirmation window that can be opened and closed in a number corresponding to each of the first pressing roll portion, the first twist stroke portion, the folding roll portion, the second twist stroke portion, and the second pressing roll portion, so that it can be repaired immediately in case of failure. It is also characterized by the configuration.

In addition, the present invention is characterized in that the composite material is manufactured in any one of the form that is inserted to have a form in which the part is connected to each other in parallel or apart form parallel to each other through the above-described manufacturing method It also provides profiles for windows and doors.

According to the present invention, a method of impregnation of a folding method, which has not been disclosed so far, is proposed so that the thermoplastic resin, which is an impregnation liquid, is completely impregnated to the inner depth of the filament constituting the fiber bundle, thereby further improving the mechanical properties, corrosion resistance, and resistance of the filament. It maximizes, improves the quality by making even and uniform impregnation, and can be extruded into the window profile immediately after impregnation, which improves productivity and prevents process loss, and installs a confirmation window to quickly and easily diagnose and repair faults. Can be obtained.

1 is an exemplary side view of a process facility for explaining a method for producing an extrusion profile using a long fiber composite impregnated with a thermoplastic resin according to the present invention.
Figure 2 is an exemplary plan view showing another example of a process equipment for explaining the extrusion profile manufacturing method using a long fiber composite impregnated with a thermoplastic resin according to the present invention.
Figure 3 is an exemplary view showing a treatment example in the impregnation unit of the process equipment for explaining the extrusion profile manufacturing method using a long fiber composite material impregnated with a thermoplastic resin according to the present invention.
Figure 4 is an illustration of an extrusion profile for windows and doors manufactured by the extrusion profile manufacturing method using a long fiber composite material impregnated with a thermoplastic resin according to the present invention.
Figure 5 is an exemplary view showing another example of the extrusion profile for windows and doors produced by the extrusion profile manufacturing method using a long fiber composite material impregnated with a thermoplastic resin according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

1 is an exemplary side view of a process facility for explaining a method for producing an extrusion profile using a long fiber composite impregnated with a thermoplastic resin according to the present invention.

As shown in FIG. 1, the basic equipment configuration includes a primary extrusion mold 100 for the production of an extrusion profile using a long fiber composite impregnated with a thermoplastic resin according to the present invention.

The primary extrusion mold 100 is a mold in which a plasticized resin (thermoplastic resin) and long fibers (including glass fibers) meet.

To this end, long fibers are introduced into one side of the primary extrusion mold 100, preferably in a direction parallel to the impregnation unit 200, and resin is injected in a plasticized state in terms of forming an angle therewith. Resin extruder 110 is installed to be.

Then, the impregnation unit 200 is connected to the outlet side of the primary extrusion mold (100).

The impregnation unit 200 has a plurality of rolls are installed therein to impregnate the injected plasticized resin buried in its outer surface into the fiber filament while spreading and spreading the long fiber, more precisely the long fiber bundle. Twist to make it work as well as to fold and squeeze.

This example is well illustrated in FIG. 3.

Figure 3 is an exemplary view showing a treatment example in the impregnation unit of the process equipment for explaining the extrusion profile manufacturing method using a long fiber composite material impregnated with a thermoplastic resin according to the present invention.

As shown in FIG. 3, the impregnation unit 200 has a first compression roll part 210, a first twist stroke part 220, a folding roll part 230, a second twist stroke part 240, and a second in the advancing direction. The pressing roll 250 is arranged in sequence at intervals.

And, the composite material (C) made of a long fiber introduced into the impregnation unit 200 and the resin surrounding the outside is pressed, twisted, folded, pressed again while passing through these equipment in order to the resin deep into the filament Can be impregnated uniformly and evenly.

That is, at the time of initial injection, the resin is maintained as shown in FIG. 3 (I), which is a form surrounding the exterior of the composite material (C).

Then, when passing through the first pressing roll portion 210, the composite material (C) is pressed and some of the resin is partially penetrated between the long fibers, that is, filament constituting the composite (C).

Subsequently, when passing through the first twist control unit 220, the expanded composite material C is twisted and has a shape in which a half of the width direction is bent.

At this time, the first twist control unit 220 and the second twist control unit 240 described above are the same configuration only different from each other in the arrangement direction, for example, two rolls may be arranged in a bendable form, as shown in the ' It is also possible to use a combination of rolls consisting of a reference roll S having a V 'groove and a bending roll T having a shape that can be engaged with the reference roll S.

When passing through the first twist control unit 220 as described above, the composite material (C) is twisted to maintain the bending state of the 'V' shape in a horizontal state, and is eventually bent in the form as shown in FIG. 3 (II). Some of the resin will infiltrates further between the filaments.

Subsequently, the folding roll unit 230 passes through the folding roll unit 230. The folding roll unit 230 is a vertically squeezed compression roll to completely fold the folded composite material C, that is, to be folded.

Then, the composite material (C) is pressed in the form as shown in (III) of Figure 3 and a substantial portion of the resin is to penetrate into the filament.

In this state, when the twist using the second twist control unit 240 is twisted again, the composite material (C) is bent in the form as shown in Fig. 3 (IV), where most of the resin is penetrated deep into the filament .

In this case, the second twist stroke unit 240 may further increase the resin penetration efficiency by disposing the first twist stroke unit 240 at 90 ° regardless of a clockwise or counterclockwise direction.

However, it is also possible to prevent the filament from breaking only if the composite material C is kept twisted in the twisted direction once.

Subsequently, when pressed while returning to the horizontal through the second pressing roll unit 250 again while the elastic body (C) is unfolded in a horizontal form while maintaining the state as shown in (V) of FIG. Penetrate evenly and impregnate.

In addition, the impregnation unit 200 is provided with a plurality of confirmation windows 260 corresponding to a plurality of, preferably the five rolls described above, as shown in FIG.

The confirmation window 260 is configured to be open and close, and allows to quickly check and replace or repair the equipment failure in the interior.

To this end, the confirmation window 260 is preferably formed transparent.

On the other hand, the guide roll 300 is installed on the outlet side of the impregnation unit 200.

The guide roll 300 is for guiding the impregnated long fiber composite, that is, the composite (C) in a predetermined direction.

And, the heating roll 400 is installed on the outlet side of the guide roll 300.

The heating roll 400 is provided to heat the planar surface of the composite (C) to increase the bond with the synthetic resin to be produced in a profile in the subsequent continuous extrusion process.

Finally, the secondary extrusion mold 500 is installed on the outlet side of the heating roll 400.

The secondary extrusion mold 500 is, in other words, a profile mold for making an extrusion profile for windows and doors.

Here, according to the shape that the long fiber composite is to be inserted into the manufactured profile at the same time using two primary extrusion mold 100, two impregnation unit 200, two guide rolls 300 as shown in FIG. It may also be impregnated and extruded.

For example, if FIG. 1 is for explaining the basic method according to the present invention, FIG. 2 is for producing the extrusion profiles 600, 600 'shown in FIGS. 4 and 5, which may be more realistic.

That is, in the case of Figure 4, because the composite material (C) is inserted into the extrusion profile 600 is connected to each other to use two secondary extrusion mold 500 to implement this, one is arranged in a straight line and the other One can be arranged in a 'b' shape, in the case of Figure 5 is inserted into the extrusion profile (600 ') because the composite (C) is arranged in parallel with each other in parallel to the second extrusion mold ( 500) It can carry out by arranging two in parallel in the state separated from each other.

Referring to the method for producing an extrusion profile for windows and doors using such a process equipment as follows.

First, the thermoplastic resin is extruded toward the long fiber through the resin extruder 110 connected to the first extrusion mold 100 while being introduced in a state where the long fibers in the bundle form are widely spread in the first extrusion mold 100. The first step is performed.

Then, while maintaining the form in which the thermoplastic resin is buried in the long fiber, while passing through the primary extrusion mold 100, the resin forms a composite (C) in the form of wrapping the long fiber filament as a whole.

In this state, a second step of being impregnated into the impregnation unit 200 is performed.

The second step is the first pressing roll portion 210, the first twist stroke portion 220, the folding roll portion 230, the second twist stroke portion 240 sequentially installed in the advancing direction of the composite material (C) inside the impregnation unit 200 ), The second pressing roll unit 250 is pressed while being pressed, twisted and bent, folded of the bent portion, bent while being twisted again in the folded state, and the bent portion is pulled out in a horizontally unfolded state while being pressed again. In the process, the resin is completely impregnated and deeply penetrated deep into the filament, but evenly and uniformly impregnated.

In this way, when the impregnation is completed, the impregnated composite material (C) is guided in a predetermined direction through the guide roll 300, while passing through the heating roll 400, the surface is planarized and at the same time a third step of preheating for extrusion molding Proceed.

After the third step is injected into the second extrusion mold 500 is arranged in accordance with the shape of the extrusion profile for the window and at the same time injected through a synthetic resin extruder (not shown) for profile manufacturing connected to the secondary extrusion mold (500) While extruding together with the synthetic resin, a fourth step of inserting the composite material (C) in the form as shown in FIG. 4 or 5 is performed.

As such, when the first, second, third and fourth stages are impregnated, the extrusion profile for the windows and doors can be manufactured immediately in one facility, thereby reducing process loss, reducing logistics costs, and improving work convenience.

In addition, the impregnation unit 200 is provided with a plurality of confirmation windows 260 to immediately check and repair within a short time to prevent the production efficiency degradation.

100: 1st extrusion mold 110: resin extruder
200: impregnation unit 300: guide roll
400: heating roll 500: secondary extrusion mold

Claims (4)

A primary extrusion mold into which long fibers and an extruded resin are added together; An impregnation unit connected to the outlet of the primary extrusion mold to impregnate the extruded resin into the filaments of the long fibers; An induction roll connected to an outlet of the impregnation unit; Heating rolls spaced apart from the guide rolls; Method for producing an extrusion profile using a long-fiber composite impregnated with a thermoplastic resin by using a facility consisting of a secondary extrusion mold that is added to the heated composite material and the synthetic resin for manufacturing the profile for the window and then extruded to create an extrusion profile inserting the composite material To;
Injecting the long filaments of the bundle form into the first extrusion mold in a state of wide spread while at the same time extrudes the thermoplastic resin toward the long fiber through a resin extruder connected to the first extrusion mold while forming a predetermined angle with the input direction of the long fibers. The first step to do;
The long fiber and the thermoplastic resin drawn out through the first step are pressed in the impregnation unit, and after bending and folding, which are combined with a plurality of twists, are pressed again horizontally to allow the thermoplastic resin to penetrate deeply into the filament filaments. A second step of evenly and uniformly impregnating the composite;
A third step of guiding the composite material drawn out through the second step in a predetermined direction with an induction roll, and then planing the surface of the composite material through a heating roll and preheating for subsequent extrusion;
A fourth step of inserting the composite material preheated through the third step into the second extrusion mold and simultaneously inserting the composite material for the manufacture of the window profile and extruding the composite material to be inserted into the synthetic resin; Method for producing an extrusion profile using a long fiber composite material impregnated with a resin.
The method of claim 1,
Inside the impregnation unit, the first compression roll portion for horizontal compression, the first twist stroke portion for bending in a 'V' shape while twisting, the folding roll portion for vertical compression while folding in the bent direction, and the 'V' shape while twisting the folded portion again And a second twist roll portion for bending the second twist roll portion for horizontal bending and the second pressing roll portion for horizontally compressing the bent portion, are sequentially arranged at intervals from the inlet end toward the outlet end, and the second step is performed through this arrangement. Extrusion profile manufacturing method using a long fiber composite material impregnated with a thermoplastic resin.
The method of claim 2,
The impregnation unit is further provided with a confirmation window that can be opened and closed in a number corresponding to each of the first pressing roll portion, the first twist stroke portion, the folding roll portion, the second twist stroke portion, and the second pressing roll portion, and configured to be repaired immediately in case of failure. Method for producing an extrusion profile using a long fiber composite material impregnated with a thermoplastic resin.
A method of manufacturing a window according to claim 1 or 2, wherein the composite material is manufactured in any one of a form in which the composite is inserted in parallel to one another and in a form in which a part is connected to each other in a parallel state apart from each other. Dragon profile.

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