KR101901862B1 - Braiding device for uniform mixing commingled yarn - Google Patents

Abstract

The present invention relates to a commingled yarn braiding apparatus having a uniform mixing function, holding reinforced fiber yarn and matrix yarn, which are composed of different materials, therein and injecting air to be able to uniformly mix the reinforced fiber yarn and the matrix yarn. According to the present invention, the commingled yarn braiding apparatus having a uniform mixing function comprises: a reinforced material supply roller supplying reinforced fiber composed of a plurality of strands; a base material supply roller supplying the matrix yarn composed of a plurality of strands; a heat treatment unit guiding a progress direction of the reinforced fiber, and at the same time, applying heat to the same; a collection unit holding the reinforced fiber and the matrix yarn simultaneously, and uniformly collecting the reinforced fiber and the matrix yarn by flowing-in air; an air supply unit supplying air to the collection unit; a winding roller fixing tip end portions of the collected braided yarn thereto such that the collected braided yarn is wound on the winding roller; and a guide roller positioned between the collection unit and the winding roller, and guiding the progress direction of the collected braided yarn left and right in the longitudinal direction of the winding roller.

Description

Technical Field [0001] The present invention relates to a coining apparatus for uniformly mixing yarns,

The present invention relates to a coaming yarn yarn joining apparatus having a uniform mixing function, and more particularly, to a coaming yarn joining apparatus having a uniform mixing function capable of mixing uniformly by injecting air, To a coaming yarn yarn piling device.

Fiber reinforced composites have excellent nodal rigidity and fatigue life and are widely applied to aviation, ship and automobile structures.

Carbon fiber, glass fiber and aramid fiber are used as the fiber reinforced composite material, and thermosetting resin, thermoplastic resin and the like are used as a base material for holding the reinforcement material in a certain shape.

Thermosetting composite materials have high strength and high rigidity. On the other hand, thermoplastic composite materials are superior to thermosetting composite materials in terms of impact resistance, recyclability and formability, and many studies have been conducted recently.

However, the thermoplastic resin has a disadvantage that impregnability is poor due to its high melt viscosity compared with a thermosetting resin.

In order to solve the problem of impregnation, a commingled yarn in the form of a combination of a reinforcing fiber and a matrix fiber has been devised and various techniques for such yarn piling are disclosed.

For example, Japanese Patent Application No. 10-0254142 discloses a technique for producing a fabric base material for heat-bonding core yarns by synthesizing a first nuclear yarn and a second blend yarn by an air jet type.

In addition, Japanese Laid-Open Patent Publication No. 2001-0041281 discloses a technique in which a continuous filament yarn is fed into an air bubble forming nozzle, but the feeding speed is increased to improve the production speed.

Registration Utility Specification 20-0361417 also discloses a texturing nozzle for texturing of endless yarn with continuous yarn ducts.

The Applicant has already improved the conventional techniques (10-2015-0045030), and the present invention is further improved.

It is an object of the present invention to provide a coaming yarn yarn piling device having a uniform mixing function capable of uniformly mixing air by spraying air with reinforcing fiber-like yarn made of different materials and metrics yarn therein.

According to an aspect of the present invention, there is provided a coaming yarn yarn joining apparatus having a uniform mixing function, including: a reinforcing material supplying roller for supplying reinforcing fibers composed of a plurality of strands; a matrix feed roller for feeding matrix yarns composed of strands; A heat collecting part for simultaneously receiving the reinforcing fiber and the matrix yarn and for uniformly gathering the reinforcing fiber and the matrix yarn by the air to be introduced, A guide roller for guiding the traveling direction of the mixed yarn, which is positioned between the take-up unit and the take-up roller, along the longitudinal direction of the take-up roller And a guide roller.

The present invention has the following various effects.

First, it is possible to fold the matrix fibers with reinforcing fibers of different materials in a minimum space.

Second, since the reinforcing fiber and the matrix yarn are dispersed and collected by using the collecting part and the dispersing part, the present invention is excellent in the yarn gathering efficiency.

Third, the present invention reduces the manufacturing cost and the maintenance cost by non-motor rotation except for the minimum configuration.

Fourth, the present invention can uniformly wind the mixed yarn in the longitudinal direction when the mixed yarn is wound on the take-up roller by applying the reverse-cam-shaped guide roller.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a coaming apparatus according to the present invention; FIG.
2 is a rear view of a coaming yarn yarn piling device having a uniform mixing function according to the present invention.
3 is a view showing a heat treatment unit of a coaming yarn yarn piling apparatus having a uniform mixing function according to the present invention.
FIG. 4 is a view showing a collecting part of a coaming yarn yarn piling device having a uniform mixing function according to the present invention.
5 is a view showing a winding roller and a guide roller of a coaming yarn yarn joining apparatus having a uniform mixing function according to the present invention.
FIG. 6 is a view showing a known material tension adjusting unit of a coaming apparatus according to the present invention.
FIGS. 7 and 8 are views showing a reinforcing material twist preventing part of a coaming yarn yarn piling device having a uniform mixing function according to the present invention.
FIG. 9 and FIG. 10 are views showing a known twist preventing portion of a coaming yarn yarn piling device having a uniform mixing function according to the present invention.
11 and 12 are views showing a dispersing unit of a coaming yarn yarn yarn joining apparatus having a uniform mixing function according to the present invention.
FIG. 13 is a view showing a mixed warp yarn force unit of a coaming yarn yarn yarn joining apparatus having a uniform mixing function according to the present invention.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings, and the same reference numerals are given to the background art and the constituent elements of the constitution which have already been described.

The description of the coaming yarn yarn joining apparatus having the uniform mixing function of the present invention described below is a preferred embodiment of the present invention and is not limited to the embodiments but can be implemented in various forms.

In addition, the shape, size, and the like of each constitution described below are representative examples and are not fixed, and can be variously changed if the same effect can be realized.

1 and 2, a coaming yarn yarn joining apparatus 1 having a uniform mixing function according to an embodiment of the present invention includes a main housing 10, a reinforcing material feeding roller 30, And includes a roller 40, a heat treatment unit 100, a collecting unit 200, an air supply unit 70, a takeup roller 300, a guide roller 400, and an operation unit 80.

In the present invention, the main housing 10 is installed in the present invention. In the present invention, the size of the coaming yarn adding apparatus 1 having a uniform mixing function is minimized, (10), and a wheel (12) is mounted on the lower side, and the following structures are mounted on the front and rear sides.

The reinforcing material supply roller 30 is wound with reinforcing fibers F made up of a plurality of strands in a structure for supplying the reinforcing fibers F. The reinforcing fiber (F) is not a single strand but a bundle of thousands of strands, forming a single thread, and the strands that have been gathered by the structures described below are unraveled. In the embodiment of the present invention, carbon fiber is used as the reinforcing fiber (F), and the reinforcing material supplying roller (30) is placed on the upper side of the main housing (10).

The reinforcing material supply roller 30 may be rotated by a separate motor. However, in the embodiment of the present invention, the material supply roller 40, which will be described later, rotates in a non-rotating manner in order to simplify the configuration and save energy, And the winding roller 300 are also configured to be able to rotate without power.

The matrix re-supply roller 40 is wound with a matrix yarn M consisting of several thousand strands in order to supply the matrix yarn M therein. Metrix (M), like the reinforcing fiber (F), is not a single strand, but rather a bundle of thousands of strands forming a single thread, and strands that have been gathered by the following structures are unraveled.

However, in general, the number of strands of the matrix yarn M is smaller than about 1/4 of that of the reinforcing fibers F. Thus, in the embodiment of the present invention, four matrix feed rollers 40 are provided So that the number of strands of the reinforcing fibers (F) and the number of strands of the matrix yarns (M) can be matched.

The known sheet feeding roller 40 is located at the rear lower side of the main housing 10 and the following structures will be described as a representative example by applying four known sheet feeding rollers 40 and one reinforcing material feeding roller 30. [

The heat treatment unit 100 is positioned at the center of the rear of the main housing 10 in such a manner as to guide and guide the advancing direction of the reinforcing fibers F wound from the reinforcing material supplying roller 30. [

The heat treatment unit 100 has a function of burning and removing foreign matters remaining in the reinforcing fiber F by heating the reinforcing fiber F to about 200 ° C to 250 ° C, and the reinforcing fiber F made up of several thousands of strands is spread well It mixes well.

That is, the reinforcing fibers F are heated by the heat treatment unit 100 to have flexibility, and are dispersed very well by the air when passing through the collecting unit 200 to be described later, and are uniformly mixed with the matrix yarn M .

As shown in FIG. 3, the heat treatment unit 100 includes a rectangular heat treatment frame 110 having a predetermined length, a plurality of recessed grooves 120 formed on both sides of the heat treatment frame 110 in the longitudinal direction thereof, (Not shown) provided on the inner side of the receiving groove 120 and a plurality of direction changing rollers 60 positioned at both ends of the heat processing frame 110.

In order to heat the reinforcing fiber (F) to remove foreign substances and to have flexibility, a longer heat treatment period is preferable. However, it is not desirable to make the size of the coaming yarn adding apparatus 1 having a uniform mixing function unlimited in order to lengthen the heat treatment section.

Therefore, it is preferable that the receiving grooves 120 and the heating elements (not shown) in which the reinforcing fibers F are accommodated and heat-treated are formed on both sides of the rectangular heat-treating frame 110. In order to guide the reinforcing fibers F, A direction changing roller 60 is provided at both ends of the frame 110.

That is, the reinforcing fibers F wound from the reinforcing material supply roller 30 are accommodated in the receiving grooves 120 formed on one side of the heat processing frame 110 and are heat-treated, And is then received in the receiving groove 120 located on the opposite side and is heat-treated. Then, the traveling direction is changed by the direction changing roller 60 to advance to the front of the main housing 10.

4, the collecting unit 200 is positioned at the front center of the main housing 10 to receive the reinforcing fibers F and the matrix yarn M at the same time, and receives air from the air supplying unit 70 And includes a drawing means 210, a collecting means 230, an air feeding hole (not shown), and a drawing means 260, where the reinforcing fiber F and the matrix yarn M are uniformly mixed.

The lead-in means 210 is formed with a plurality of lead-in holes 220 through which the matrix fibers M and the reinforcing fibers F are individually drawn. The number of the lead- And the number of reinforcing fibers (F).

The gathering means 230 is located behind the pulling means 210 and the matrix yarn M and the reinforcing fibers F having passed through the lead-in hole 220 are gathered together at the same time. An air supply hole (not shown) is formed at an inner side of the collection hole 240, and air is introduced from the air supply unit 70 through an air supply hole (not shown).

Air is injected through the air supply hole (not shown) when the matrix yarn M and the reinforcing fiber F pass through the inside of the collecting hole 240 so that the matrix yarn M and the reinforcing fibers F ) Are dispersed and homogeneously mixed to become mixed yarn (B).

The drawing means 260 forms a drawing hole 270 through which the mixed yarn B is drawn out and the mixed yarn B passing through the drawing hole 270 is formed by the matrix yarn M and the reinforcing fiber F, Is uniformly mixed.

The winding roller 300 is located at one side of the top of the front surface of the main housing 10 and is wound around the end of the mixed yarn B passing through the drawing hole 270. As shown in Fig. A guide roller 400 is provided on the front side of the winding roller 300.

The guide roller 400 guides the direction in which the mixed yarn B is collected to the left and right along the longitudinal direction of the take-up roller 300 so that the mixed yarn B to be wound is wound on only a certain portion of the take- Thereby preventing the rollers 300 from being intensively wound and guiding them to be wound uniformly along the longitudinal direction of the winding roller 300.

The guide roller 400 is applied in the form of a reverse cam formed on the outer circumferential surface of a pair of reverse grooves 410 which are moved in opposite directions.

The end of the mixed yarn B is fixed to the winding roller 300 while being inserted in the reverse groove 410 formed on the outer circumferential surface of the guide roller 400. When the winding roller 300 is rotated, Position moves along the reverse groove 410 formed in one direction and moves to the opposite direction when the movement to the end of the reverse groove 410 is completed.

By this process, the position of the mixed yarn B wound around the take-up roller 300 is not fixed, but is slightly changed reciprocally in the longitudinal direction.

One end of the guide roller 400 is fixed to one side of the front surface of the main housing 10 and is rotated by a rotational force from the motor 91. The winding roller 300 is rotated in a state of being in contact with the guide roller 400, And rotates non-rotatively when the roller 400 rotates.

A matrix tension adjusting unit 500 may be provided between the collecting unit 200 and the matrix feed roller 40 to adjust the tension of the matrix yarn M supplied thereto.

6, the matrix re-tension adjuster 500 adjusts the tension of the matrix yarn M positioned at the front lower portion of the main housing 10 and supplied from the rear lower portion thereof, A plurality of support members 510 disposed between the support members 510 spaced apart from each other at predetermined intervals along the direction of movement of the support member 510 and spaced apart from the support members 510, A pressing member 520 and a distance adjusting member 530 for adjusting the moving distance of the pressing member 520. [

It is preferable that the number of the matrix re-tension adjusting parts 500 is provided so as to correspond to the number of the matrix feed rollers 40 for supplying the matrix yarn M.

The matrix yarn M wound from the reinforcing material supply roller 30 advances in one direction while being in contact with one side surface of the plurality of supporting members 510. When the operator rotates the distance adjusting member 530, The pressing member 520 positioned between the pressing member 520 and the pressing member 520 presses the matrix yarn M while moving in the direction intersecting with the advancing direction of the matrix yarn M.

It is possible to adjust the tension of the matrix yarn M by adjusting the distance adjusting member 530 so as to adjust the degree to which the pressing member 520 presses the metrics yarn M. [

The reinforcing fiber F may be provided between the reinforcing material supplying roller 30 and the heat treatment part 100 to prevent the twisting of the reinforcing fiber F while controlling the tension of the reinforcing fiber F, Between the roller 40 and the collecting unit 200, there can be provided a base material anti-twist portion 700 for controlling the tension of the supplied matrix yarn M and preventing twisting.

7 to 10, the reinforcing member anti-twisting portion 600 and the base member anti-twisting portion 700 are supported by a pair of support rollers 610 And a pressure roller 620 which is in contact with and presses the pair of support rollers 610 at the same time.

A gap adjusting unit 630 is provided at one side of the pressure roller 620 to adjust the gap between the pressure roller 620 and the support roller 610. The gap adjusting portion 630 includes a first frame 631, a second frame 632, an adjusting screw 633, and a lever 636.

The first frame 631 is positioned in front of the support roller 610 and is rotatably provided with a pressure roller 620. A second frame 631 protruding from the main housing 10 is provided below the first frame 631, 632 are provided.

An adjusting screw 633 is provided on the outer side of the first frame 631 and a pair of stoppers 634 are screwed on the adjusting screw 633. [ A hinge 635 is provided on the outer side of the second frame 632 and one end of the hinge 635 is fixed to the adjusting screw 633 by a pair of stoppers 634. A lever 636 is provided at one side of the hinge 635.

When the operator presses the lever 636, the first frame 631 rotates about the hinge 635 and the gap between the pressing roller 620 and the supporting roller 610 becomes farther. When the lever 636 is further raised, The roller 620 and the support roller 610 come into contact with each other.

The pressing force of the pressing roller 620 against the supporting roller 610 can be controlled by rotating the stopper 634 coupled to the adjusting screw 633 to adjust the position of the end of the hinge 635. [

The reinforcing fiber F and the matrix yarn M are spread out without being twisted by being pressed between the supporting roller 610 and the pressing roller 620 by the reinforcing material anti-twisting portion 600.

When the pair of support rollers 610 are rotated by the motor 92, the pressure roller 620 in contact with the pair of support rollers 610 is rotated in a non-rotating manner, and the reinforcing fibers F or the matrix yarns M located therebetween are rotated do.

A ball-shaped dispersing unit 800 for dispersing the matrix M and reinforcing fibers F in contact with at least one of the front of the drawing unit 210 and the rear of the drawing unit 260, May be provided.

The dispersing unit 800 is forcibly unfolded by being in contact with the matrix yarn M and the reinforcing fiber F made up of thousands of strands located on the path passing through the matrix yarn M and the reinforcing fiber F, 810, a push ball 840, and a rotating body 850.

A passage 820 is formed in the body 810 so as to pass through both ends of the body 810 so that the reinforcing fibers F and the matrix yarn M are passed through the body 810, (850).

One end of a connecting member 870 having a predetermined length is fixed to the rotating body 850 and a pressing ball 840 is provided at the other end of the connecting member 870. When the rotary body 850 is rotated in one direction, the pushing ball 840 is positioned in front of the passage 820, and when the rotary body 850 is rotated in the opposite direction, the pushing ball 840 is moved away from the passage 820.

When the pushing ball 840 is positioned in front of the path 820, the matrix yarn M and the reinforcing fibers F passing through the path 820 can not proceed straightly by the pushing ball 840, (840) so that the traveling direction is bent and then straightened. That is, the matrix yarn M and the reinforcing fibers F made up of thousands of strands are unfolded.

An air inlet hole 830 is formed at one side of the body 810 to communicate with the inside of the passage 820. When air is supplied through the air inlet hole 830, M) and the reinforcing fibers (F).

The air inflow hole 830 has the same function as the air supply hole (not shown) of the collecting unit 200 described above. That is, the dispersing unit 800 is provided on at least one of the front side and the rear side of the collecting hole 240, thereby maximizing the effect that the reinforcing fiber F and the matrix yarn M are uniformly spread and then concatenated.

Meanwhile, a mixed warp tension adjusting unit 900 may be provided between the guide roller 400 and the collecting unit 200. The mixed tension adjusting unit 900 includes a fixing roller 910 fixed on the front surface of the main housing 10 and rotated by a motor 93, A variable roller 920 whose inclination is varied by a tension applied to the guide roller 400 and a tension adjusting assist roller 930 located below the guide roller 400. [

The mixed yarn B drawn out from the collecting unit 200 is wound several times along the outer circumferential surface of the fixing roller 910 and the variable roller 920 and then is guided by the tension roller 930, 400 to the winding roller 300 along the reverse groove 410 of the winding roller 300.

The end portion of the variable roller 920 is formed in a circular shape and is inserted into one side of the main housing 10, and the fixed state is changed according to the applied force. That is, the angle (slope) between the main housing 10 and the variable roller 920 varies depending on the tension of the mixed yarn B wound around the outer peripheral surface of the variable roller 920.

The operation unit 80 is configured to control the overall operation of the coaming yarn adding apparatus 1 having a uniform mixing function according to the present invention and includes a take-up roller 300 rotated by a motor, a fixing roller 910, (610).

The operation unit 80 can be configured to individually control the speeds of the winding roller 300, the fixing roller 910, and the support roller 610, or can be configured to be simultaneously and automatically controlled at a predetermined fixed ratio Do.

It is also possible to provide a separate tension measuring unit to prevent the tension of the mixed yarn B or the reinforcement fibers 150 located at the front and rear of the base material anti-twisting portion 700, F or the tension of the matrix yarn M to measure the rotation speed of the corresponding motor automatically.

B: mixed yarn F: reinforcing fiber
M: Metrix Company 1: Coaming Gull-on-yarn device
10: main housing 30: reinforcement feed roller
40: base feed roller 60: direction changing roller
70: air supply part 80:
100: heat treatment unit 110: heat treatment frame
120: receiving groove 200:
210: incoming means 230:
260: drawing means 300: winding roller
400: guide roller 410: reverse groove
500: base tension adjusting part 600: reinforcing material twisting preventing part
700: Base anti-twisting portion 800: Dispersion portion
900: Mixed tension adjusting unit

Claims (9)

A reinforcing material supplying roller for supplying reinforcing fibers composed of a plurality of strands;
A matrix feed roller for feeding matrix yarns of multiple strands;
A heat treatment unit for guiding the traveling direction of the reinforcing fibers and applying heat thereto;
A collecting part for receiving the reinforcing fiber and the matrix yarn at the same time and uniformly gathering the reinforcing fiber and the matrix yarn by the incoming air;
An air supply unit for supplying air to the collecting unit;
A winding roller on which an end of the collected mixed yarn is fixed and wound; And
And a guide roller which is positioned between the collecting portion and the take-up roller and guides the mixed direction of the collected mixed yarn leftward and rightward along the longitudinal direction of the take-up roller,
Further comprising a base material tension adjusting unit which is located between the collecting unit and the matrix feed roller and adjusts the tension of the supplied matrix yarn,
The matrix rewinding unit includes a plurality of support members spaced apart at predetermined intervals along a traveling direction of the matrix yarn, a plurality of support members disposed between the support members spaced apart and movable in a direction intersecting the progress direction of the matrix yarn, And a distance adjusting member for adjusting a moving distance of the pressing member.
The method according to claim 1,
The heat-
A rectangular heat treatment frame having a predetermined length,
A direction changing roller provided at an end of the heat treatment frame,
A receiving groove formed along both lengthwise sides of the heat treatment frame and the reinforcing fibers being bent by the direction changing roller and received via both side surfaces;
And a heating element provided on the inside of the receiving groove,
Wherein the reinforcing fiber is heated by the heating body to improve the dispersing force by the air.
The method according to claim 1,
The guide roller
Wherein the pair of reverse grooves are formed in a reverse cam shape continuously formed along the outer circumferential surface in a direction opposite to each other.
The method according to claim 1,
The matrix feed rollers are provided in a plurality of feed rollers to supply the matrix yarn at the same time,
The collecting portion
A plurality of first inlet holes formed in a number corresponding to the number of the matrix yarns and a second inlet hole into which the reinforcing fibers are inserted;
A collecting means in which a plurality of metrics yarns and a collecting hole into which the reinforcing fibers are simultaneously drawn are formed,
An air supply hole communicating one side of the collection hole with the air supply portion,
And draw-out means having a draw-out hole through which the collected mixed yarn is drawn out,
Wherein the matrix feed roller is provided so that the number of strands of the reinforcing fiber and the number of strands of the matrix yarn can be matched when a plurality of matrix yarns supplied at the same time are combined. .
The method according to claim 1,
And a mixed yarn tension adjusting unit located between the guide roller and the combiner to adjust the tension of the mixed yarn,
Wherein the mixing /
A variable roller which is located on the upper side of the fixing roller and which is tilted by the tension applied to the mixed yarn and which is located below the guide roller, Coaming gull-on-yarn device with mixing function.
delete 5. The method according to any one of claims 1 to 4,
A reinforcing material anti-twist portion disposed between the reinforcing material supply roller and the heat treatment portion, the reinforcing material preventing tension of the reinforcing fiber being supplied and preventing twisting;
And a base material anti-twist portion disposed between the base material supply roller and the collecting portion, the base material restraining portion controlling the tension of the supplied matrix yarn and preventing the twist.
5. The method of claim 4,
Wherein at least one of a front portion of the drawing means and a rear portion of the drawing means is provided with a ball-shaped dispersing portion for contacting and dispersing the matrix yarn and the reinforcing fibers.
9. The method of claim 8,
Wherein the dispersing unit includes a body through which reinforcing fibers and matrix yarns are passed,
A rotating body provided at one side of the body so as to be rotatable about a rotating shaft,
And a connecting member protruding from one side of the rotating body and having a pushing ball at an end thereof,
Wherein the pushing ball is located in front of the passageway and is in contact with the reinforcing fibers and the matrix yarns to disperse the coins.

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