KR101571484B1 - Apparatus for spreading fiber bundles - Google Patents

Apparatus for spreading fiber bundles Download PDF

Info

Publication number
KR101571484B1
KR101571484B1 KR1020150048347A KR20150048347A KR101571484B1 KR 101571484 B1 KR101571484 B1 KR 101571484B1 KR 1020150048347 A KR1020150048347 A KR 1020150048347A KR 20150048347 A KR20150048347 A KR 20150048347A KR 101571484 B1 KR101571484 B1 KR 101571484B1
Authority
KR
South Korea
Prior art keywords
fiber bundle
carding
roller
unit
carbon fiber
Prior art date
Application number
KR1020150048347A
Other languages
Korean (ko)
Inventor
송원길
이종근
Original Assignee
송원길
이종근
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 송원길, 이종근 filed Critical 송원길
Priority to KR1020150048347A priority Critical patent/KR101571484B1/en
Application granted granted Critical
Publication of KR101571484B1 publication Critical patent/KR101571484B1/en

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/18—Separating or spreading

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

The present invention relates to a feeding unit for feeding a fiber bundle; A transfer unit for transferring the fiber bundle supplied from the supply unit in the longitudinal direction of the fiber bundle; And a carding unit for opening the fiber bundle conveyed by the conveying unit in the width direction, wherein the carding unit includes a carding roller in which a plurality of threads are formed on at least a part of an outer circumferential surface where the fiber bundle is in contact , And a carding machine for a fiber bundle.

Description

Apparatus for spreading fiber bundles

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carding machine for a fiber bundle, and more particularly, to a carding machine for a fiber bundle that opens a wide bundle of fibers composed of a plurality of fibers.

BACKGROUND ART [0002] Recently, the development of a fiber-reinforced composite material in which a reinforcing fiber such as carbon fiber, glass fiber, or aramid fiber is combined with a matrix resin such as an epoxy resin is being developed. Such a reinforcing fiber can be obtained by laminating a plurality of thin punched sheets which are aligned in one direction and used in a reliable manner. Further, since there are advantages such as recyclability, short-time moldability, and improvement of impact resistance characteristics of molded articles, it is expected that a molded article of a composite material using thermoplastic resin such as various resins will be increased in the future.

Recently, carbon fiber composite materials have attracted much attention as materials for structural parts of aircraft, automobiles, and industrial machines. A plurality of carbon fibers are bundled as carbon fiber bundles, and the number of the bundles is also various.

In terms of the cost, the quality of the product (the straightness of the fiber, the alignment of the fibers, etc.) and the ease of handling, the number of the bundles of carbon fibers is 12,000, 15,000 (fineness of about 800 to 1100 g / m), and in the bundle of elastic carbon fibers having a high strength, 12,000 or 24,000 fibers (fineness of about 400 to 1000 g / 1000 m) are mainly used.

However, in the carbon fiber bundle having a large number of focusing points, there is a drawback that as the number of focusing is increased, the meandering of the fibers and entanglement of the fibers are increased. Therefore, in order to develop a thin sheet and improve the impregnation property of a high-viscosity resin such as a thermoplastic resin, it is an essential task to open the fiber bundle so that the fiber bundle is wide and thin. In particular, it is very important to open the fiber bundles in a bundle of fibers having a large number of bundles.

Korean Patent Laid-Open Publication No. 10-2012-0031476

The object of the present invention is to provide a carding machine for a fiber bundle which opens wide and thinly a plurality of fiber bundles.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a carding machine for a fiber bundle, comprising: a supply unit for supplying a fiber bundle; A transfer unit for transferring the fiber bundle supplied from the supply unit in the longitudinal direction of the fiber bundle; And an opening carding unit for opening the fiber bundle conveyed by the conveying unit in the width direction, wherein the carding unit includes a carding roller in which a plurality of threads are formed on at least a part of an outer circumferential surface where the fiber bundle contacts .

In some embodiments, the carding roller includes a first carding unit positioned at one side of the carding roller and opening the fiber bundle in one direction; And a second carding unit located on the other side of the carding roller and opening the fiber bundle in the other direction.

In some embodiments, a plurality of threads wound in one direction are formed on the outer circumferential surface of the first island hole section from one side of the first island hole section to one side, and on the outer circumferential surface of the second island hole section, A plurality of threads wound in one direction from one side of the dogleg portion toward the other side can be formed.

In some embodiments, the plurality of threads of the first island section are formed to be inclined to one side, and the plurality of threads of the second island section are formed to be inclined to the other side.

In some embodiments, the carding roller may be located between the first island and the second island, and may include the non-threaded portion without the thread.

In some embodiments, the diameter of the intermediate region may be formed larger or smaller than the diameters of both sides of the carding roller.

In some embodiments, the diameter of the carding roller may gradually increase from one end to the other end.

In some embodiments, the ends of the threads may be curved.

In some embodiments, the carding unit may include an carding motor for rotating the carding roller.

In some embodiments, the transfer unit includes a first support roller and a second support roller that are spaced apart from each other and support the fiber bundle being conveyed, and the take-up roller includes a first support roller and a second support roller, 2 upper roller or lower roller between the support rollers.

In some embodiments, the separation distance between the first support roller and the second support roller may be smaller than the diameter of the opening roller.

In some embodiments, the fiber bundle may be a carbon fiber bundle.

The details of other embodiments are included in the detailed description and drawings.

According to the carding machine for a fiber bundle of the present invention, there are one or more of the following effects.

It is effective to easily open a fiber bundle by using an insert roller applying the concept of a multi-threaded screw.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a side view schematically showing a carding machine for a fiber bundle according to an embodiment of the present invention.
2 is a plan view schematically showing a carding machine for a fiber bundle according to an embodiment of the present invention.
FIG. 3A is an enlarged view of a portion A in FIG. 1; FIG.
FIG. 3B is an enlarged view of a portion B in FIG. 1; FIG.
3C is an enlarged view of the portion C in FIG.
4 is a plan view schematically showing the carding unit of a carding machine for a fiber bundle according to an embodiment of the present invention.
5 is a cross-sectional view schematically showing a thread section of a first island section and a thread section of a second island section according to an embodiment of the present invention.
6 is a cross-sectional view schematically showing a thread section of a first island section and a thread section of a second island section according to another embodiment of the present invention.
7 is a plan view schematically showing the carding roller of the carding unit according to another embodiment of the present invention.
8 is a plan view schematically showing the carding roller of the carding unit according to another embodiment of the present invention.
9 is a plan view schematically showing the carding roller of the carding unit according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprises " and / or "comprising" when used in this specification are intended to exclude the presence or addition of one or more other components, acts, and / I never do that.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings for explaining a carding machine for a fiber bundle according to embodiments of the present invention.

First, the fiber bundle includes a bundle of reinforcing fibers made of high-strength fibers such as carbon fiber, glass fiber, aramid fiber and ceramic fiber, and a thermoplastic resin fiber bundle in which thermoplastic synthetic fibers are aligned.

However, in one embodiment of the present invention, the fiber bundle is a carbon fiber bundle composed of carbon fibers, but the present invention is not limited thereto, and the fiber bundle may be a glass fiber bundle, an aramid fiber bundle thermoplastic resin bundle, or the like.

 The carbon fiber bundle may be in the form of a sheeted sheet so that a plurality of carbon fibers are aligned and are not scattered by sizing agents or the like. Thus, by adhering the sizing agent, the shape of the sheet can be stably maintained even if the carbon fiber bundle is carded.

1 is a side view schematically showing a carding machine for a fiber bundle according to an embodiment of the present invention. 2 is a plan view schematically showing a carding machine for a fiber bundle according to an embodiment of the present invention. FIG. 3A is an enlarged view of a portion A in FIG. 1; FIG. FIG. 3B is an enlarged view of a portion B in FIG. 1; FIG. 3C is an enlarged view of the portion C in FIG.

Referring to FIGS. 1 to 3C, the carding machine for a fiber bundle according to an embodiment of the present invention performs a function of opening the carbon fiber bundle F in the width direction of the carbon fiber bundle F. FIG. The carding machine for a fiber bundle includes a feeding unit 100, a feeding unit 200, an carding unit 300 and a winding unit 400.

The supply unit 100 serves to supply a plurality of carbon fiber bundles F gathering long fibers. The feeding unit 100 includes a feeding body 110 in which a carbon fiber bundle F is wound and a yarn feeding motor 120 for rotating the feeding body 110. [

As the feeder body 110 is rotated by the feed motor 120, the carbon fiber bundle F wound on the feeder body 110 is pulled out.

The transfer unit 200 serves to transfer the carbon fiber bundle F supplied from the supply unit 100 in the longitudinal direction of the fiber bundle F. [ The transfer unit 200 includes a first transfer unit 230, a second transfer unit 240, first and second support rollers 211 and 212 and second support rollers 221 and 222.

The first feeding part 230 is disposed below the carbon fiber bundle F drawn out from the feeding body 110. The first conveying unit 230 includes a first conveying roller (not shown) that contacts the lower portion of the carbon fiber bundle F and a first conveying motor (not shown) that rotates the first conveying roller (not shown).

As the first conveying roller (not shown) is rotated by the first conveying motor (not shown), the carbon fiber bundle F is conveyed in the longitudinal direction of the carbon fiber bundle F.

The first feeding motor (not shown) rotates the first feeding roller (not shown) as described above. The first feeding motor (not shown) can adjust the feeding speed of the carbon fiber bundle F by controlling the rotation speed of the first feeding roller (not shown).

The second transfer unit 240 is disposed above the carbon fiber bundle F drawn out from the feeding member 110. The second conveying unit 240 includes a second conveying roller 241 contacting the upper portion of the carbon fiber bundle F and a second conveying motor 242 rotating the second conveying roller 241.

The second conveying roller 241 conveys the carbon fiber bundle F in the longitudinal direction of the carbon fiber bundle F as it is rotated by the second conveying motor 242.

The second feeding motor 242 rotates the second feeding roller 241 as described above. The second conveying motor 242 can adjust the rotational speed of the second conveying roller 241 in addition to the first conveying motor (not shown). Accordingly, the second feeding motor 242 can adjust the feeding speed of the carbon fiber bundle F together with the first feeding motor (not shown).

The carbon fiber bundle F is transported in the longitudinal direction by the first transporting unit 230 and the second transporting unit 240. The conveying speed of the carbon fiber bundle F can be controlled by the first conveying unit 230 and the second conveying unit 240.

Also, the first feeding roller (not marked) and the second feeding roller 241 are rotated differently from each other to transport the carbon fiber bundle F in the longitudinal direction. For example, when the first conveying motor (not shown) rotates the first conveying roller (not shown) clockwise, the second conveying motor 242 rotates the second conveying roller 241 counterclockwise .

1 and 2, the first transfer part 230 and the second transfer part 240 are disposed between the supply unit 100 and the carding unit 300a in the embodiment of the present invention. But the present invention is not limited to this, and may be disposed between the winding unit 400 and the carding unit 300c or between the carding units 300a to 300c.

The first support rollers 211 and 212 and the second support rollers 221 and 222 serve to support the carbon fiber bundle F being conveyed. The first supporting rollers 211 and 212 and the second supporting rollers 221 and 222 are disposed such that the opening roller 310 is positioned between the first supporting rollers 211 and 212 and the second supporting rollers 221 and 222 So that they can be spaced apart from each other. The carding roller 310 of the carding unit 300 may be positioned above or below the first support rollers 211 and 212 and the second support rollers 221 and 222 as will be described later.

The first and second support rollers 211 and 212 and the second support rollers 221 and 222 may be made of a general flat roll and may be formed of a material having excellent wear resistance or may be formed by coating a material having excellent wear resistance on a roller- .

For example, the first and second support rollers 211 and 212 and the second support rollers 221 and 222 may be made of a hard-coated stainless steel or ceramic material having excellent abrasion resistance, or may be made of a metal material such as iron and / The first support rollers 211 and 212 and the second support rollers 221 and 222 are not rotated by separate motors in the embodiment of the present invention. The first support rollers 211 and 212 and the second support rollers 221 and 222 may be rotated by separate motors in some embodiments. Details of the first support rollers 211 and 212 and the second support rollers 221 and 222 will be described later.

The carding unit 300 serves to open the carbon fiber bundle F conveyed by the conveying unit 200 so as to expand the width thereof. The carding unit 300 includes an opening roller 310 made of a special forming roll capable of opening the carbon fiber bundle F and an opening motor 320 for rotating the opening roller 310.

In an embodiment of the present invention, the carding roller 310 is rotated by the carding motor 320, but the present invention is not limited thereto. The first conveying motor (not shown) And / or a second conveying motor 242 of the second conveying unit 240, or the like, and may be rotated by receiving power.

A plurality of threads 301 and 302 (see FIG. 4) are formed on at least a part of the outer circumferential surface of the carding roller 310 where the carbon fiber bundle F is contacted. Accordingly, the carding roller 310 can open the carbon fiber bundle F conveyed by the conveying unit 200 in the width direction.

The carding roller 310 may be disposed on the upper side or the lower side between the first support rollers 211 and 212 and the second support rollers 221 and 222. Also, the carding roller 310 may be made of a material having excellent abrasion resistance, or a special roller-shaped metal may be coated or plated with a material having excellent abrasion resistance.

For example, the take-up roller 310 may be made of hard-coated stainless steel, ceramic, or the like, which is excellent in abrasion resistance, or may be made of a metal material such as iron and / or non- . Accordingly, it is possible to prevent the plurality of threads 301, 302 of the carding roller 310 contacting the carbon fiber bundle F from being worn. Therefore, replacement of the opening roller 310 due to wear of a plurality of threads can be reduced, and productivity can be improved. Details of the opening and closing roller 310 will be described later.

The winding unit 400 serves to take up the carbon fiber bundle F that has been carded by the carding unit 300. [ The winding unit 400 includes a winding roller 410 for winding the carded carbon fiber bundle F and a winding motor 420 for rotating the winding roller 410.

As shown in FIGS. 1, 3A, 3B, and 3C, the contact areas of the carding rollers 310a to 310c and the carbon fiber bundle F may vary according to the positions of the carding units 300a to 300c.

As shown in Figs. 1 and 3A, the carding unit 300a is disposed between the first support roller 211 and the second support roller 221. As shown in Fig. The first supporting roller 211 and the second supporting roller 221 are disposed on the same line so as to be spaced apart from each other and the carding unit 300a is disposed on the lower side between the first supporting roller 211 and the second supporting roller 221 do. Thus, the carbon fiber bundle F is brought into contact while surrounding the carding roller 310a.

The distance between the first support roller 211 and the second support roller 221 may be smaller than the diameter of the carding roller 310a. As a result, the contact area of the carbon fiber bundle F with the outer circumferential surface of the take-up roller 301a is large as compared with the case where the distance is equal to or larger than the diameter of the take-up roller.

As shown in FIGS. 1 and 3B, the carding roller 310b of the carding unit 300b is disposed on the same line as the first supporting roller 211 and the second supporting roller 221. Thus, the carbon fiber bundle F is brought into contact with a part of the upper side of the carding roller 310b.

As shown in Figs. 1 and 3C, the carding unit 300c is disposed between the first support roller 212 and the second support roller 222. As shown in Fig. The first support roller 212 and the second support roller 222 are disposed on the same line and spaced from each other and the carding unit 300c is disposed on the upper side between the first support roller 212 and the second support roller 222 do. Accordingly, the carbon fiber bundle F is brought into contact with the carding roller 310c while surrounding it.

The distance between the first support roller 212 and the second support roller 222 may be larger than the diameter of the needle roller 310c. As a result, the contact area of the carbon fiber bundle F with the outer peripheral surface of the opening roller 310c is small, as compared with the case where the spacing distance is smaller than the diameter of the opening roller.

As the contact area of the carbon fiber bundle F with the outer peripheral surface of the carding roller 310 is larger, the carding efficiency of the carbon fiber bundle F is increased. The process of opening the carbon fiber bundle F will be described later

4 is a plan view schematically showing the carding unit of a carding machine for a fiber bundle according to an embodiment of the present invention. 5 is a cross-sectional view schematically showing a thread section of a first island section and a thread section of a second island section according to an embodiment of the present invention.

4 and 5, the carding roller 310 according to an embodiment of the present invention has a plurality of threads 301 and 302 formed on at least a part of an outer circumferential surface thereof. The plurality of threads 301 and 302 are formed so as to be wound in a spiral shape along the outer circumferential surface of the carding roller 310.

As the plurality of threads 301 and 302 are formed on the outer peripheral surface of the carding roller 310, the carding roller 310 is formed of a multi-threaded screw having two or more threads. That is, the carding roller 310 includes a region made up of a plurality of threads 301, 302 having a plurality of threads in one lead. In addition, the carding roller 310 may include a first carding unit 311, a second carding unit 312, and a non-carding unit 313.

The first island portion 311 is located at one side of the carding roller 310 and opens the carbon fiber bundle F in one direction. A plurality of threads 301 are formed on the outer circumferential surface of the first island portion 311 and wound in one direction from the other side of the first island portion 311 toward one side. The first island portion 311 is connected to the non-island portion 313 on the other side. 4, one side corresponds to the right side and the other side corresponds to the left side.

The second island portion 312 is located on the other side of the carding roller 310 and opens the carbon fiber bundle F in the other direction. On the outer circumferential surface of the second island portion 312, a plurality of threads 302 wound in one direction from one side of the second island portion 312 toward the other side are formed. Further, the second island portion 3120 is connected to the non-billed island portion 313 on one side.

When the carding roller 310 rotates in one direction, the carbon fiber bundle F is opened in one direction by a plurality of threads 301 of the first carding unit 311. In addition, the carbon fiber bundle F is opened in the other direction by a plurality of threads 302 of the second island section 312.

Describing the process of opening the carbon fiber bundle F, the carbon fiber bundle F in a sheet form, which is focused by a sizing agent, etc., is a bundle of carbon fibers. When the sheet-like carbon fiber bundle F contacts the outer circumferential surface of the opening roller 310 rotating in one direction, the carbon fiber bundle F is divided into a plurality of threads 301 and 302 ) 0, and a part of the split carbon fiber bundle F is inserted into a threaded hole (not shown) formed between the plurality of threads 301, 302. The carbon fiber bundle F inserted into the threaded bosses (not shown) is moved in the width direction of the carbon fiber bundle F by the rotation of the carding roller 310. Accordingly, (F).

For example, when the carbon fiber bundle F is in contact with the outer peripheral surface of the first island portion 311, the carbon fiber bundle F is divided into a plurality of threads 301 formed in the first island portion 311, . A part of the split carbon fiber bundle F is inserted into a threaded hole (not shown) formed between the plurality of threads 301 of the first island portion 311. Since the plurality of threads 301 of the first island portion 311 are formed so as to be wound in one direction from the other side of the first island hole portion 311 in one direction, And is moved in one direction through the rotation of the motor 310. Accordingly, the carbon fiber bundle F is opened in one direction by the first island presser 311.

When the carbon fiber bundle F is in contact with the outer circumferential surface of the second island portion 312, the carbon fiber bundle F is split by the plurality of threads 302 formed in the second island portion 312. A part of the split carbon fiber bundle F is inserted into a threaded hole (not shown) formed between the plurality of threads 302 of the second island portion 312. Since the plurality of threads 302 of the second island portion 3120 are formed so as to be wound in one direction from one side of the second island hole portion 312 to the other side, And is moved in the other direction through the rotation of the motor 310. Thus, the carbon fiber bundle F is opened in the other direction by the second island presser 312.

The non-wool islands 313 are located between the first islands 311 and the second islands 312 and the outer peripheral surface of the non-wool islands 313 is not threaded. That is, the non-billed island portion 313 is a portion where the threading is removed from the opening roller 310. Therefore, the carbon fiber bundle F that is in contact with the outer peripheral surface of the non-waded portion 313 is not carded even when the carding roller 310 rotates. The carbon fiber bundle F can prevent the intermediate region from being split so that the carbon fiber bundle F can be prevented from being separated from the carbon fiber bundle F, It is possible to open the carding while maintaining the predetermined shape.

As shown in FIG. 5, the cross-section of the plurality of threads 301 and 302 formed on the outer peripheral surface of the carding roller 310 may be formed in a variety of curved shapes.

For example, the plurality of threads 301 and 302 formed on the outer peripheral surface of the carding roller 310 may be curved at their ends. Accordingly, the end faces of the plurality of threads 301 and 302 can be formed into an arc shape. The end portions of the plurality of threads 301 and 302 are curved so that the carbon fiber bundle F can be prevented from being broken or damaged by the threads 301 and 302. [

In addition, the cross section of the threaded boss (not shown) formed between the plurality of threads 301 and 302 can be formed into various shapes in a curved shape.

For example, the threaded bones formed by the plurality of threads 301, 302 of the carding roller 310 may be curved at their ends. Accordingly, the cross section of the threaded hole can be formed into an arc shape. That is, since the ends of the threaded threads are curved, it is possible to prevent the carbon fiber bundle F located at the threaded threads from being broken or damaged by the threads.

As shown in FIG. 5, in one embodiment of the present invention, a pair of adjacent threads of the plurality of threads 301, 302 form a threaded bore. The threads are located in the middle of the pitch of a pair of adjacent threads.

In other words, a threaded hole is formed between one of the plurality of threads 301, 302 and the next thread. The distances C1 and C2 between one thread and the thread and the distances D1 and D2 between the thread and the next thread are the same.

6 is a cross-sectional view schematically showing a thread section of a first island section and a thread section of a second island section according to another embodiment of the present invention.

Referring to FIG. 6, a cross section of a plurality of threads 301 'and 302' formed in the first island portion 310 'and the second island portion 320' according to another embodiment of the present invention will be described.

Sectional shapes of the plurality of threads 301 'and 302' formed in the first island portion 310 'and the second island hole portion 302' may be formed in various shapes of curved shapes.

As shown in FIG. 6, a threaded hole (not shown) is formed between one thread of the first island portion 310 'and the second threaded portion 320' between the following threads. In addition, the distances (C1 ', C2') between one thread and the thread and the distances (D1 ', D2') between the thread and the next thread are formed differently.

As shown in FIG. 6, the threads 301 'of the first island portion 310' are formed to be inclined to one side of the carbon fiber bundle F in the carding direction. Accordingly, one thread of the first island portion 310 'and the distance C1' between the thread is formed to be smaller than the distance D1 'between the thread of the first island portion and the next thread on one side of one thread.

For example, the first island portion 310 'forms a threaded hole (not shown) between a pair of adjacent threaded portions, and a thread located on the other side of the threaded portion is referred to as a first threaded portion (Not shown) is referred to as a second thread (not shown).

As shown in FIG. 6, the distance D1 'between the second thread and the thread is greater than the distance between the first thread and the thread C1'. The distance D1 'between the second thread and the thread is preferably about 2 or 3 times larger than the distance between the first thread and the thread. Accordingly, the carbon fiber bundle F can be easily moved to one side by the threads 301 'of the first carding unit 310' which is inclined to one side, and the carding efficiency of the carbon fiber bundle F is increased .

As shown in FIG. 6, the plurality of threads 302 'of the second island portion 320' are formed to be inclined to the other side in the carding direction of the carbon fiber bundle F. Accordingly, the distance between one thread of the second island portion 320 'and the thread C2' between the threads of the second island portion 320 'is greater than the distance D2' between the next threads on the other side of one thread portion .

For example, the second island portion 320 'forms a threaded hole (not shown) between a pair of adjacent threaded portions, and a thread located on one side of the threaded portion is referred to as a third threaded portion (not marked) The thread on the other side is referred to as a fourth thread (not shown).

As shown in FIG. 6, the distance D2 'between the fourth thread and the thread is greater than the distance between the third thread and the thread C2'. It is preferable that the distance D2 'between the fourth thread and the thread is formed to be approximately two or three times larger than the distance C2' between the third thread and the thread. Accordingly, the carbon fiber bundle F can be easily moved to the other side by the threads 302 'of the second carding unit 320' which is inclined to the other side, and the carding efficiency of the carbon fiber bundle F is increased .

7 is a plan view schematically showing the carding roller of the carding unit according to another embodiment of the present invention. 8 is a plan view schematically showing the carding roller of the carding unit according to another embodiment of the present invention. 9 is a plan view schematically showing the carding roller of the carding unit according to another embodiment of the present invention.

7 to 9, the carding roller of the carding unit according to another embodiment of the present invention will be described.

As shown in FIG. 7, the diameter of the intermediate region is formed to be larger than the diameters of both sides of the carding roller 310 'according to another embodiment of the present invention. Accordingly, the central portion of the take-up roller 310 'is formed into a cylindrical shape convex outward.

As shown in FIG. 8, the diameter of the intermediate region is smaller than the diameter of both sides of the carding roller 310 '' according to another embodiment of the present invention. Accordingly, the carding roller 310 " is formed in a cylindrical shape in which the intermediate region is recessed inward.

As shown in FIG. 9, the diameter of the carding roller 310 '' 'according to another embodiment of the present invention gradually increases from one end to the other end. Accordingly, the opening roller 310 '' 'is formed into a tapered cylindrical shape with a certain angle from one end to the other end.

The operation of the fiber bundle carding device according to the present invention will be described as follows.

The carbon fiber bundle F wound around the feeding member 110 of the feeding unit 100 is drawn out as the feeding member 110 is rotated by the yarn feeding motor 320. [ The carbon fiber bundle F supplied from the supply unit 100 has a bundle of carbon fibers. Accordingly, the width of the carbon fiber bundle F is formed to be smaller than the width before the carbon fiber bundle F is opened.

The carbon fiber bundle F is brought into contact with the outer circumferential surface of the carding roller 310 of the carding unit 300 by the transfer unit 200. The carbon fiber bundle F is opened in the width direction of the carbon fiber bundle F by a plurality of threads formed on the outer circumferential surface of the carding roller 310.

As shown in FIGS. 1 and 2, three carding units 300 according to an embodiment of the present invention are provided. The carding unit 300a adjacent to the supply unit 100 is referred to as a first carding unit 300a and the carding unit 300c adjacent to the winding unit 400 is referred to as a third carding unit 300c, The carding unit 300b located between the carding unit 300a and the third carding unit 300c is referred to as a second carding unit 300b.

The width W1 of the carbon fiber bundle F opened by the first carding unit 300a is larger than the width W0 of the carbon fiber bundle F drawn out from the supply unit 100, The width W2 of the carbon fiber bundle F opened by the first carding unit 300b is larger than the width W1 of the carbon fiber bundle F opened by the first carding unit 300a, The width W3 of the carbon fiber bundle F opened by the second carding unit 300b is larger than the width W2 of the carbon fiber bundle F spun by the second carding unit 300b.

Accordingly, the carbon fiber bundle F is opened by the first carding unit 300a, the second carding unit 300b, and the third carding unit 300c, thereby gradually increasing the width.

3 (a) to 3 (c), the contact area between the carding roller 310a of the first carding unit 300a and the carbon fiber bundle F is larger than the area of the second carding unit 300b ) And the third carding unit 300c. Accordingly, the first carding unit 300a has a greater carding efficiency of the carbon fiber bundle F than the second carding unit 300b and the third carding unit 300c. That is, the width change rate of the carbon fiber bundle F by the first carding unit 300a is the largest.

The area of contact between the carding roller 310b of the second carding unit 300b and the carbon fiber bundle F is larger than the area of the first carding unit 300a as shown in Figures 3 (a) to 3 (c) And the third key card unit 300b. Accordingly, the carding efficiency of the carbon fiber bundle F is smaller in the second carding unit 300b than in the first carding unit 300a and the third carding unit 300c. That is, the width change rate of the carbon fiber bundle F by the second carding unit 300b is the smallest.

As shown in Figs. 3 (a) to 3 (c), the contact area between the carding roller 310c of the third carding unit 300c and the carbon fiber bundle F is larger than the area of the first carding unit 300a, And is larger than that of the second cardium unit 300b. Accordingly, the third carding unit 300c has a smaller carding efficiency of the carbon fiber bundle F as compared with the first carding unit 300a,

However, the third carding unit 300c has a greater carding efficiency of the carbon fiber bundle F than the second carding unit 300b. That is, the width change rate of the carbon fiber bundle F by the third carding unit 300c is smaller than that of the first carding unit 300a and larger than that of the second carding unit 300b.

The carbon fiber bundle F having completed the carding operation is wound on the winding roller 410 of the winding unit 400. [

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

100: supply unit 110:
120: Feed roller 200: Feed unit
211, 212: first support rollers 221, 222: second support rollers
230: first transfer part 240: second transfer part
300, 300a, 300b, 300c: Carding unit 301, 302:
310, 310a, 310b, 310c: Carding roller 311: First island portion
312: second island portion 313:
320, 320a, 320b, 320c: carding motor 400: winding unit
410: Winding roller 420: Winding motor
F: fiber bundle

Claims (12)

A supply unit for supplying a fiber bundle;
A transfer unit for transferring the fiber bundle supplied from the supply unit in the longitudinal direction of the fiber bundle; And
And an opening card unit having an opening roller for opening the fiber bundle conveyed by the conveying unit in the width direction,
Wherein the opening /
A non-bamboo islands which do not open the fiber bundle;
A first bundle portion integrally formed on one side of the non-bundled portion and opening the bundle of fibers to one side in the width direction; And
And a second carding unit integrally formed on the other side of the non-bamboo island portion and opening the fiber bundle to the other side in the width direction,
Wherein a plurality of threads wound in one direction from one side of the first island hole to one side are formed on an outer circumferential surface of the first island hole portion, and the first carded portion includes a threaded bone formed between adjacent threaded portions, Wherein a spacing distance between the threaded portion and the threaded portion is larger than a distance between the threaded portion and a thread located on the other side of the threaded portion,
Wherein a plurality of threads wound in one direction from one side of the second island hole to one side are formed on an outer peripheral surface of the second island hole, Wherein a spacing distance between the threads is smaller than a spacing distance between the threads and the thread located on the other side of the thread,
And no thread is formed on the outer circumferential surface of the non-woven island portion. delete delete delete delete The method according to claim 1,
Wherein the diameter of the intermediate region is formed larger or smaller than the diameter of both sides of the carding roller. The method according to claim 1,
Wherein the diameter of the carding roller gradually increases from one end to the other end. The method according to claim 1,
Wherein an end of the thread is curved. The method according to claim 1,
Wherein the carding unit includes an opening motor for rotating the carding roller. The method according to claim 1,
The transfer unit
A first support roller and a second support roller which are spaced apart from each other and support the fiber bundle being conveyed,
Wherein the carding roller is located on the upper side or the lower side between the first supporting roller and the second supporting roller. 11. The method of claim 10,
Wherein a distance between the first supporting roller and the second supporting roller is smaller than a diameter of the opening roller. The method according to claim 1,
Wherein the fiber bundle is a carbon fiber bundle.
KR1020150048347A 2015-04-06 2015-04-06 Apparatus for spreading fiber bundles KR101571484B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150048347A KR101571484B1 (en) 2015-04-06 2015-04-06 Apparatus for spreading fiber bundles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150048347A KR101571484B1 (en) 2015-04-06 2015-04-06 Apparatus for spreading fiber bundles

Publications (1)

Publication Number Publication Date
KR101571484B1 true KR101571484B1 (en) 2015-11-24

Family

ID=54845221

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150048347A KR101571484B1 (en) 2015-04-06 2015-04-06 Apparatus for spreading fiber bundles

Country Status (1)

Country Link
KR (1) KR101571484B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101901778B1 (en) 2017-09-20 2018-09-28 (주)유디엠 Fiber spreading device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006257593A (en) * 2005-03-18 2006-09-28 Toray Ind Inc Device for fiber-opening reinforced fiber bundle for thermosetting prepreg, method for opening the fiber and method for producing the prepreg
KR101198256B1 (en) * 2011-05-13 2012-11-07 서울대학교산학협력단 Fiber spreading device and manufacturing system of continuous fiber reinforced thermoplastic composites having the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006257593A (en) * 2005-03-18 2006-09-28 Toray Ind Inc Device for fiber-opening reinforced fiber bundle for thermosetting prepreg, method for opening the fiber and method for producing the prepreg
KR101198256B1 (en) * 2011-05-13 2012-11-07 서울대학교산학협력단 Fiber spreading device and manufacturing system of continuous fiber reinforced thermoplastic composites having the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101901778B1 (en) 2017-09-20 2018-09-28 (주)유디엠 Fiber spreading device

Similar Documents

Publication Publication Date Title
KR102230414B1 (en) Method for manufacturing and manufacturing device for partial split-fiber fiber bundle and partial split-fiber fiber bundle
JP7310985B2 (en) METHOD FOR MANUFACTURING FIBER REINFORCED RESIN MOLDING MATERIAL
CN107735433A (en) The manufacture method of fiber-reinforced resin sheet material
JP6943199B2 (en) SMC manufacturing method and SMC
KR20120031476A (en) Method for spreading fiber bundles, spread fiber sheet, and method for manufacturing a fiber-reinforced sheet
US11097448B2 (en) Fiber-reinforced resin molding material and production method therefor
JPWO2017221688A1 (en) Manufacturing method of split fiber bundle, split fiber bundle, fiber reinforced resin molding material using split fiber bundle, and manufacturing method thereof
KR102253276B1 (en) Partially branched fiber bundle and method for producing same, and fiber-reinforced resin molding material using partly branched fiber bundle and method for producing same
KR20150073884A (en) Reinforced thermoplastic resin sheet material and process for producing the same
KR101571484B1 (en) Apparatus for spreading fiber bundles
US11401630B2 (en) Method for spreading a tow of textile non-braided filaments, preferably chemical or inorganic filaments
CN111936281B (en) Method for producing fiber-reinforced resin molding material and apparatus for producing fiber-reinforced resin molding material
US5129131A (en) Method of and apparatus for manufacturing glass fiber mat
CN1332866C (en) Improved high-speed fiber feed assembly
CN115298006A (en) Method for producing SMC
JP2013076193A (en) Device and method of opening fiber bundle
JP2005161797A (en) Manufacturing method and manufacturing apparatus for prepreg
KR102434682B1 (en) An apparatus for continuously performing fiber processing and 3d printing, and a method for manufacturing a functional yarn using the same
JP5667484B2 (en) Manufacturing method and equipment for fiber opening
KR101901778B1 (en) Fiber spreading device
JP2015218417A (en) Fixing-treatment device for opened fiber bundle, fixing-treatment method and fixing-treated opened fiber bundle
KR20180080406A (en) Fiber opening apparatus for prepreg
JP2006291403A (en) Clamp cutter device for yarn
JP6876267B2 (en) Method of dividing fiber bundles, method of manufacturing long fiber bundles, and method of manufacturing fiber reinforced resin material
JP2020023069A (en) Shaping device

Legal Events

Date Code Title Description
AMND Amendment
AMND Amendment
X701 Decision to grant (after re-examination)
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20180911

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20190926

Year of fee payment: 5