WO2002066721A1

WO2002066721A1 - Production device for expanded fiber yarn woven fabric

Info

Publication number: WO2002066721A1
Application number: PCT/JP2002/001386
Authority: WO
Inventors: Hiroji Oishibashi; Toshiyuki Okuda; Tatsuya Hamaguchi
Original assignee: Obs Inc.
Priority date: 2001-02-20
Filing date: 2002-02-18
Publication date: 2002-08-29
Also published as: JP2002249957A

Abstract

A weaving device for weaving fabrics by using as at least a warp a band-form fiber bundle having fibers expanded in advance to be given a sufficient width with respect to a thickness, wherein a woven fabric producing device is provided which can keep the expanded fiber condition of filaments constituting a band-form fiber bundle at width-direction ends of a woven fabric, and which maintains in a bonded condition the surface of a end-position band-form fiber bundle (warp) located at width-direction ends in an expanded fiber yarn woven fabric's width direction by using a selvedge attaching adhesive tape (6) and cuts this fiber bundle in a warp direction to obtain a woven fabric.

Description

Description Manufacturing equipment for expanded yarn fabrics

The present invention relates to an apparatus for manufacturing a spread fiber woven fabric.

More specifically, weaving is intended for weaving at least a stretched band-shaped fiber bundle having a sufficient width with respect to its thickness.

A pair of gripping means capable of gripping a group of warps comprising a plurality of warps at predetermined intervals while maintaining a parallel relationship with each other, comprising a pair of gripping members,

An interlocking means for opening and closing the yarn group by appropriately moving up and down each warp between the pair of gripping means while maintaining a parallel relationship with the pair of gripping means;

While maintaining a parallel relationship with the pair of gripping means, a weft inserting means capable of inserting the weft toward the opening of the warp group in parallel with the longitudinal direction of the gripping means,

The present invention relates to an apparatus for manufacturing a spread yarn woven fabric having tension setting means for adjusting and setting the tension of a warp positioned between the pair of gripping means. The manufacturing apparatus having this structure is particularly suitable for reinforcing fiber-reinforced composite materials. It is useful for weaving textile reinforcement as a material. Background art

As an apparatus for manufacturing this type of expanded yarn fabric, there is one disclosed in Japanese Patent No. 29835531.

Compared to the following prior art, this device directly expands using a band-shaped fiber bundle with the aim of providing a fabric reinforcing material with excellent surface smoothness and less bending at the intersection of yarns. It was developed for weaving yarn fabrics.

Conventionally, techniques for obtaining expanded yarn woven fabrics include Japanese Patent Publication No. 2-3233832, Japanese Patent Application Laid-Open No. Heisei 4-281037, Japanese Patent Application Laid-Open No. Hei 8-1-27959, Japanese Patent Application Laid-Open No. H08-2321335 discloses a method of spreading a woven fabric by applying a water jet to the surface of the woven fabric. No. 7—1 4 5 5 5 6 describes a method of spreading textiles by applying ultrasonic waves in water. There was a method of expanding the woven fabric using a rotating drum and water pressure.

In these conventional methods for manufacturing a fabric reinforcing material, a reinforcing fiber bundle is once woven in a state of multifilament yarn before spreading, and then a high-pressure fluid or ultrasonic waves are applied to the obtained woven fabric. The fiber bundle forming the woven structure is subjected to fiber spreading processing.

Therefore, there is a limit to the spread width, and since the fiber bundle is insufficiently spread at the intersection of the yarns, there is a limit to the reduction in the degree of bending of the yarn at the intersection and the improvement of the surface smoothness. There was a problem that the quality of the fiber reinforcement deteriorated.

Therefore, what is shown in Japanese Patent No. 29835531, as described above, is provided with a pair of gripping means, a pig iron means and a weft insertion means, and a gripping means in accordance with the opening and the weft insertion timing. By making the belt movable, weaving can be directly performed without giving twist to each belt-shaped fiber bundle on the warp side by using the band-shaped fiber bundle after spreading as a warp or a weft.

Furthermore, even when the gripping means is not moved in parallel, weaving is performed at a relatively low speed and the tension of the warp is appropriately set, so that the gripping means is positioned and fixed in the warp direction. Even in this case, weaving of the expanded yarn can be performed in a good open state and without causing the expanded yarn to be twisted.

However, it was found that there were the following problems.

1 Ear treatment

Conventionally, the ears of the woven fabric were cut and removed only at the cut end of the weft in the width direction of the woven fabric (ears) after weaving was completed. In the case of a fiber bundle, disturbance is likely to occur in the band fiber bundle at the end position at the end in the width direction of the woven fabric (the band fiber bundle as a warp in this portion).

Further, in this portion, a force for moving the woven fabric toward the center in the width direction is apt to work, and a sufficient woven width cannot be secured, and at the same time, the turbulence is likely to occur in this portion.

2 Weft insertion processing

Normally, when weft-inserting a band-shaped fiber bundle as in the present application, for example, one end of the fiber bundle is gripped by a gripper, and weft-insertion is performed in a levia style. Such a weft insertion operation is, in effect, an operation of inserting and placing a weft into the warp shed. However, when weft-inserting a band-like fiber bundle as in the present application, Since the fiber bundle is composed of a plurality of filaments dispersed in the width direction, the filaments are in a parallel state after weft insertion, and cannot be maintained in an appropriate tension state, and a good spread state can be maintained. However, the parallelism and linearity may be disturbed.

3 Condition before weaving

After completion of weft insertion, the weft yarn is moved to the weaving front and wound up on the winding bobbin. By the time the weft yarn arrives at the winding bobbin, the woven fabric is usually wound by the winding roll. A structure driven and driven is adopted.

Here, as shown in FIG. 2 of Japanese Patent No. 29835351, the conventional winding roll has a pair of rolls abutting in the vertical direction to make line contact. In a cross-sectional view, the fabric was guided and driven at the point where a pair of rolls came into point contact. In this case, the linearity / parallelism of each filament constituting the belt-shaped fiber bundle was often disturbed even at the guide / drive portion.

An object of the present invention is to solve the above-mentioned problems, and to maintain a good state after completion of spreading, even in a filament constituting a band-shaped fiber bundle, in an apparatus for manufacturing a spread fiber woven fabric for directly weaving a band-shaped fiber bundle. It is an object of the present invention to obtain an apparatus for manufacturing a spread textile. Disclosure of the invention

In order to achieve the above-mentioned object, weaving is to be carried out, in which at least a belt-like fiber bundle having a sufficient width with respect to its thickness, which has been subjected to fiber expansion in advance, is at least warp,

While maintaining a parallel relationship with the pair of gripping means, between the pair of gripping means, a pig iron means for vertically moving each warp and opening and closing a warp group,

A tension setting device for adjusting and setting the tension of the warp positioned between the pair of gripping devices, the characteristic configuration of the apparatus for manufacturing a spread yarn woven fabric, as described in claim 1,

The expanded weft inserted by weft insertion is translated to the position of the gripping means on the weaving side. Regarding the woven fabric, the end position band-shaped fiber bundle that is attached to the end position band-shaped fiber bundle located at the end in the width direction of the expanded yarn fabric is provided with end position band-shaped fiber bundle fixing means. .

In the apparatus for manufacturing a spread yarn woven fabric, the end position band-shaped fiber bundle at the end in the width direction of the woven fabric is contacted and fixed by providing the end position band-shaped fiber bundle fixing means. For example, as described in the embodiment, when an adhesive tape is used as the ear-holding adhesive means, this tape is adhered to the ear, which is the extended portion of the weft, as in the related art. In addition, the adhesive is applied so as to hang on the band-shaped fiber bundle located at the end in the width direction of the woven fabric.

By doing so, the end-to-end band-shaped fiber bundle is fixed in the woven fabric as a result, so that disturbance at this portion can be prevented and the state of the fiber bundle on the inner side in the width direction is stabilized. The initial spreading state of the filament can be kept good. Further, in the above structure, as described in claim 2, further comprising a cutter for cutting at least an ear of the expanded fiber woven fabric, the cut is bonded by the ear holding adhesive means. It is preferable to adopt a configuration in which the end position band-shaped fiber bundle in the state is cut in the warp direction of the spread yarn fabric, and the ear is cut off. In this structure, the end-position band-shaped fiber bundle in the bonded state is cut in the warp direction of the woven fabric, so that the ears are removed and the shape of the woven fabric is retained using the bonded warp portion. It can be performed well.

Further, in the above structure, as described in claim 3, between the cutter and a winding bobbin for winding the expanded yarn fabric, a width direction end of the expanded yarn fabric is provided. It is preferable that a tentering means is provided for expanding the spread fiber woven fabric in the width direction while holding the fiber.

In the cutting process using a cut-out, the force to pull the fabric part (product) located on the center side in the width direction of the fabric from the cut part to the center side is easy to work, but the above-mentioned squeezing means is provided. Thereby, weaving can be advanced while urging the woven fabric in the widening direction, and a wide woven fabric can be obtained.

Now, another characteristic configuration for achieving the above object is that, as described in Claim 4, the weft inserting means inserts the weft into the opening of the warp group. After the operation, the tensioning operation for tensioning the weft after the completion of the weft insertion is configured to be possible.

After weft insertion is completed, tension is applied again to the weft (which is a band-shaped fiber bundle) before it is moved to the weave, and the weft is moved from the opening to a new opening state, resulting in In addition, it is possible to manufacture a spread yarn woven fabric having a weft that has a small filament looseness and maintains a good spread state.

Further, in the above structure, as described in claim 5, on both sides of the warp group, reciprocally movable in the warp direction, and a weft inserted in parallel with the gripping means. It is preferable to provide a pair of transfer means that move in parallel to the position of the grip means on the cloth fell side.

By this transfer means, reliable transfer of the weft to the grip means on the weave front side can be achieved. Further, a characteristic configuration of the present application for achieving the above object includes, as described in claim 6, comprising a winding means for winding the expanded yarn woven fabric after weaving, wherein the winding means A winding bobbin on which the expanded yarn woven fabric is wound, and a winding roll for guiding the expanded yarn woven fabric to a winding introduction portion of the winding bobbin. It is preferable that the woven fabric is configured to be curved in contact with the surface of the winding roll.

In this way, the winding roll adopts a structure in which the expanded yarn woven fabric comes into contact with the surface of the winding roll and is curved (surface contact structure), so that the woven fabric can be held at multiple points at the winding roll portion, and as a result, In addition, the turbulence of the filament at the winding roll site can be reduced. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a schematic partial plan view of an apparatus for manufacturing a spread yarn fabric of the present embodiment, and FIG. 2 is a schematic partial side view of the apparatus.

FIG. 3 is a partial plan view showing the operation mechanism of each component of the device.

FIG. 4 is a partial plan view showing an operation mechanism of each component of the apparatus.

FIG. 5 is a partial side view showing the operation mechanism of the gripping means on the yarn feeding side of the apparatus, and FIG. 6 is a partial side view showing the operation mechanism of the overall means of the apparatus. FIG. 7 is a partial plan view of the expanded yarn fabric woven by the device,

FIG. 8 is an explanatory diagram of a weft constant-quantity supply mechanism and a weft insertion state.

FIG. 9 is a diagram showing a processing state of a fabric width direction end including an ear,

FIG. 10 is a schematic partial plan view of an embodiment of the expanded yarn fabric manufacturing apparatus according to the present invention,

FIG. 11 is a schematic partial side view of another modified example of the apparatus for manufacturing a spread yarn fabric according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.

The apparatus for manufacturing a spread yarn fabric according to the present embodiment is provided as a band-shaped fiber bundle T having a substantially uniform width (100 or more in a spread width / expanded thickness ratio) sufficient for the thickness after being subjected to the spread processing. For example, a carbon fiber bundle with a thickness of 0.05 mm and an expansion width of 18 mm, which is made up of 1200 carbon fibers of 7 mm in diameter and spread slightly parallel to each other with an epoxy resin sizing agent (The original fiber bundle before spreading is 0.1 mm thick and 6.1 mm wide jo

A plain woven fabric is woven using the band-shaped fiber bundle T as a warp and a weft to provide a woven fabric reinforcing material for a carbon fiber reinforced composite material.

Hereinafter, each component of the apparatus according to the present embodiment will be described in order.

In the figure, what is indicated by reference numerals 1 and 2 is a pair of gripping means capable of gripping a warp group composed of a plurality of warps (band-like fiber bundles T · T〜) at predetermined intervals.

As shown in FIG. 2, each of the gripping means 1 and 2 is composed of a pair of upper and lower clamp rolls, each of which is a gripping member, which can move up and down. To fix the warp group.

As shown in FIGS. 3 to 5, each of the pair of gripping means 1 and 2 can be oblique to the warp direction while maintaining a parallel relationship with each other, and the gripping means (warp bobbin 1) on the yarn supply side. 5) The gripping means 1 is disposed so as to be capable of reciprocating parallel movement with respect to the gripping means 2 on the cloth fell side in a direction perpendicular to the longitudinal direction of the gripping means. In the embodiment, the gripping means 1 on the yarn feeding side is provided with water on the axis 11 on the moving base 10. While it is arranged so as to be able to rotate horizontally, the grip means 2 on the cloth fell side is arranged so as to be able to rotate horizontally on the shaft 21 on the fixed base 20. The moving base 10 itself, which supports the shaft, reciprocates along a horizontally rotatable track 13 between the shafts 12a and 12b, thereby providing a gripping means on the yarn feeding side. 1 can reciprocally translate in the direction perpendicular to the gripping means 2 on the cloth fell side.

In the figure, what is designated by reference numeral 14 is a pair of upper and lower delivery rolls capable of transmitting the belt-like fiber bundle T wound around the warp bobbin 15 as a warp group in a predetermined length at an appropriate time. What is designated by 2 is a winding roll for winding the woven fabric onto the winding pobin 23.

Between the delivery roll 14 and the gripping means 1 on the yarn supply side, there is provided a tension setting means comprising a tension adjusting roll 140 for applying an appropriate tension at the time of opening and closing the warp. In this tension setting means, by adjusting the tension adjustment rolls 14 1 in the middle in the vertical position in accordance with the opening timing, each of the expanded yarns forming the warp at the opening, closing, etc. with the tension adjustment. To prevent twisting etc. of the filament.

As shown in FIG. 2, the winding holes 22 are formed by a pair of holes in the winding direction of the fabric, and are arranged side by side in the fabric feeding direction (the left-right direction in the drawing). I have.

As a result, the expanded yarn woven fabric that has been woven is curved on the surface of the upstream roller 22 a and is guided and driven while being in contact with the roller a fixed distance, and is guided to the winding bobbin 23. In the figure, what is indicated by the reference numeral 3 is a comprehensive means for opening and closing the warp group by appropriately moving each warp up and down between the pair of gripping means 1 and 2.

As shown in FIGS. 3, 4 and 6, the pig iron means 3 can be obliquely oblique to the warp direction while maintaining a parallel relationship with the pair of gripping means 1 and 2, and It is arranged so that it can reciprocally translate in a direction perpendicular to the means 1 and 2. That is, the integrated means 3, 3... Of the present embodiment are erected on the base 30 so as to be able to move up and down. By reciprocating along 1, the pig iron means 3 moves up and down on the base 30 and at the same time reciprocates in parallel in a direction perpendicular to the gripping means 1.2. In addition, the overall weaving means 3 of the present embodiment is configured so that it can be appropriately replaced according to the width of the belt-like fiber bundle T serving as a warp and the oblique angle of the weft with respect to the warp direction.

In the figure, what is indicated by reference numeral 4 is a weft insertion means for inserting weft into the opening of the warp group.

The weft inserting means 4 includes a weft bobbin 42 on which a weft of a band-shaped fiber bundle T which has been preliminarily expanded and has a substantially uniform width with respect to the thickness is wound, and a weft of the weft pobin 42. It is composed of a weft gripping portion 43 for gripping an end portion, and a rapier portion 44 for reciprocating the weft gripping portion 43.

As shown in FIGS. 3 and 4, the weft insertion means 4 is disposed obliquely to the warp direction while maintaining a parallel relationship with the pair of gripping means 1 and 2.

That is, the weft bobbin 42, the weft gripping part 43, and the rib part 44 of the weft insertion means 4 of the present embodiment are provided on a base 40 that can be horizontally rotated by a shaft 41, and Insert the weft into the opening parallel to the gripping means 1 and 2.

As shown in FIG. 8, between the weft bobbin 42 and the transfer means 5 on the bobbin side, as shown in FIG. 8, a weft quantitative supply means 9 for storing only the amount of weft necessary for one weft insertion operation is provided. Provided.

The weft quantitative supply means 9 is for pulling out an amount of weft necessary for one weft insertion operation from the weft bobbin 42 to secure a standby state of a predetermined g of weft, and the weft in the standby state. The weft is held at a predetermined position so that the leading end side can be gripped by the weft gripping portion 43, and the extended state of the weft can be ensured by the tension roll 92. FIGS. 8 (a) and 8 (f) show the standby state, and FIGS. 8 (b) and (c) show the normal weft insertion state.

In addition, the weft insertion operation by driving the weft gripping section 43 and the revere section 44 is performed in the first stage in which the weft is inserted over the entire width of the fabric as shown in FIG. Weft insertion operation (Figs. 8 (a), (b), (c)) and tensioning operation after completion of the first weft insertion operation (Figs. 8 (c), (d)) Configuration. Here, the two-stage operation is performed by the controller 93 for the weft gripping portion 43 and the revia portion 44. After the tensioning operation is completed, both ends of the weft are fixed by the transfer means 5, so that the spread state of the weft can be favorably maintained. In FIGS. 3 and 4, what is indicated by reference numeral 45 is a cutter for cutting the root of the weft inserted into the opening.

In Figs. 3 and 4, what is indicated by reference numeral 5 is a pair of transfer means arranged on both sides of the yarn group so as to be able to reciprocate in the warp direction. The weft inserted into the opening of the group is transferred in parallel to the position of the gripping means 2 on the cloth fell side. As shown in FIG. 2, each transfer means 5 is composed of a pair of upper and lower clamp plates which can be moved up and down, and the pair of clamp plates sandwiches and fixes the band-shaped fiber bundle T as a weft.

As shown in FIGS. 3 and 4, a pair of orbits 52 and 52 move sideways while maintaining a constant interval via a lever 50 which can be rotated horizontally by a shaft 51, and By moving the pair of transfer means 5.5 holding the weft back and forth along the pair of tracks 52, 52, the weft is transferred in parallel to the position of the grip means 2 on the cloth fell side.

In FIGS. 1 and 2, what is indicated by reference numeral 6 is an adhesive tape for stopping ears of a woven fabric.

In the present application, the bonding position of the ear stopper adhesive tape 6 is also devised. As shown in FIG. 9 (a), the adhesive position of the tape 6 is set so as to adhere to the surface of the end position band-shaped fiber bundle (which is naturally a warp) located at the end in the width direction of the woven fabric. This allows not only the retention of the ear 60 but also the retention of the warp shape at the end in the width direction of the fabric. FIG. 9 (a) is a plan view of the configuration near the grip means 2 and the take-up roll 22 on the cloth fell side, and FIG. 9 (b) is a side view of the tentering means 62. is there. In this structure, the ear-stopping adhesive tape 6 forms the ear-holding bonding means in the present application, and the use of the tape 6 at a specific position constitutes the end-position band-like fiber bundle fixing means.

Further, as shown in FIG. 9, between the gripping means 2 on the cloth fell side and the winding bobbin 23, a cutter 61 for ear treatment is provided. A configuration is adopted in which the band-like fiber bundle at the end portion bonded to the tape 6 at the end is cut in the longitudinal direction.

By exploring this configuration, a part of the precious, band-shaped fiber bundle is cut with the ear It will be removed, but on the other hand, the state of the fabric inside in the width direction can be kept good.

Further, as shown in the figure, between the cutter 61 and the winding bobbin 23, there is provided a tentering means 62 for holding the widthwise end of the woven fabric and spreading the woven fabric in the widthwise direction. As shown in FIG. 9 (b), the tentering means 62 is provided with a plurality of needles 62b which engage with the fabric at the circumferential end of the disk 62a. a can be rotated around the axis, and its outer peripheral surface can be widened with a predetermined tension as if it is in a wider state in the width direction of the fabric, such as those located at the lower side in the feed direction of the fabric. However, in the apparatus of the present embodiment, when weaving a spread yarn woven fabric in which a weft intersects a warp, first, as shown in FIGS. In a state where the warp group is gripped at a predetermined interval in step 2, the pig iron means 3 is moved up and down as appropriate with the action of the tension setting means to open the warp group, and the weft is inserted into the opening by the weft inserting means 4. After weft insertion, the weft inserted by a pair of transfer means 5.5 is gripped, and the root of the weft is Cross, and then to transfer parallel cut weft to the position of the gripping means 2 of the cloth fell by the pair of transfer means 5.5.

Thereafter, the warp group is closed by the pig iron means 3, and the gripping states of the gripping means 1 on the yarn supply side and the gripping means 2 on the weave front side, which gripped the weaving front part, are respectively released, and the entire warp group is released. The body is sent out by the width of the weft thread-shaped inorganic fiber bundle T.

After that, the warp group sent by the width of the weft is again grasped again by the pair of grasping means 1 and 2 and is repeatedly opened by the pig iron means 3 to continuously weave the expanded yarn fabric. Can be.

In this way, the fiber is preliminarily expanded and thinned and flattened, and the filaments are slightly adhered to each other approximately in parallel by the sizing agent, and the yarn is cut from the belt-like fiber bundle which has been drawn to a constant density without any yarn breakage, into warp yarn. On the other hand, a high-quality expanded yarn fabric (see Fig. 7) in which the wefts are perpendicular to each other is produced.

As described above, in the apparatus for manufacturing a spread yarn woven fabric according to the present embodiment, the band-like fiber bundle that has been spread and thinned and flattened in advance can be woven as it is, and therefore, at the intersection of the warp and the weft. In addition, the fiber bundle is sufficiently expanded to produce an expanded yarn woven fabric excellent in resin impregnation, and the bending of the fiber bundle at the intersection of the warp and the weft is also possible. Since the number of bends is small and the stress concentration on the bend is reduced, the mechanical properties of the fiber bundle can be fully utilized, and the surface smoothness of the woven fabric can be improved. In some cases, it is possible to manufacture a high-quality expanded yarn woven fabric that does not generate a resin excess portion or a void portion due to uneven distribution of reinforcing fibers.

In addition, since the expanded fiber woven fabric itself can be thinly woven, it is possible to manufacture an expanded fiber woven fabric that is extremely excellent in drapability (property according to shape), which is important when used as a fabric reinforcing material.

In the case of weaving the expanded yarn woven fabric in which the weft is orthogonal to the warp, if the pair of upper and lower clamp rolls of the gripping means 1 on the yarn supply side are configured to be rotatable, respectively. It is also possible to feed out the warp group by the width of the weft while holding the yarn group by the gripping means 1.

As in the embodiment shown in FIG. 10, another weft bobbin 4 2 in which a weft composed of a different kind of band-shaped fiber bundle such as a glass fiber bundle is wound next to the weft pobin 42 of the weft insertion means 4. It is also possible to arrange the weft bobbin 42 and another weft bobbin 42 as appropriate by means of the weft selection means 8 and to insert each weft in a multicolor manner. Further, in the above embodiment, the gripping means 2 and the winding roll 22 on the cloth fell side are provided as independent roll groups, and the former can be rotated around the vertical axis of the loom. This enabled the manufacture in the case where the warp and the weft cross obliquely. However, in the case where the warp and the weft form a normal plain weave, the grip means 2 on the weave front side and the winding port Since it can be fixed in parallel, a small-diameter roll 2 for gripping may be provided on the upper roll of the winding roll 22 as shown in FIG.

In this case, the pig iron means 3 and 3 only need to move up and down, and the feeding roll 14 can also have the function of the yarn feeding side holding means 1 by removing the yarn feeding side gripping means 1. Even with this structure, it is possible to construct the gripping means 2 on the weave front side of the woven fabric that has been woven, and achieve a surface contact state with the winding roll 22.

In the above embodiment, the gripping means and the tension setting means are each formed of an integral long member (for example, a long roll) in the width direction of the manufacturing device (direction orthogonal to the warp). However, in the present application, the purpose of the gripping means is to hold the band-shaped fiber bundle and to set the tension of the band-shaped fiber bundle in the tension setting means. The member fulfilling this function may be constituted by a member divided in the width direction. That is, instead of being constituted by a single long member, a plurality of divided rolls corresponding to each expanded band-shaped fiber bundle or each of several band-shaped fiber bundles are prepared to constitute a gripping means. The gripping member that forms the tension member and the gripping member that forms the tension setting means may be configured as a whole. Industrial applicability

The present invention relates to an apparatus for manufacturing an expanded yarn woven fabric, and is particularly useful for weaving a woven fabric reinforcing material as a reinforcing material for a fiber-reinforced composite material.

Claims

The scope of the claims

1. For weaving using a stretched band-shaped fiber bundle with a sufficient width for its thickness as the warp,

While maintaining a parallel relationship with the pair of gripping means, a pig iron means for opening and closing the warp group by vertically moving each yarn between the pair of gripping means;

An apparatus for manufacturing a spread yarn woven fabric, comprising: tension setting means for adjusting and setting the tension of the yarn located between the pair of gripping means.

Regarding the expanded yarn woven fabric in which the weft inserted weft is translated in parallel to the position of the gripping means on the weave front side, the end position of the expanded yarn woven fabric located at the end in the width direction is located on the surface of the band-shaped fiber bundle. An apparatus for producing a spread fiber woven fabric, comprising end-position band-like fiber bundle fixing means for adhering an ear-holding adhesive means.

2. A cutter for cutting at least an ear of the expanded yarn fabric,

2. The expansion device according to claim 1, wherein the cutter cuts the end-position band-shaped fiber bundle in the bonded state by the ear-pressing bonding means in the longitudinal direction of the expanded yarn fabric, and cuts off the ear. Manufacturing equipment for woven yarn.

3. Between the cutter and the winding bobbin for winding the expanded yarn woven fabric, a wrapping-out means for holding the widthwise end of the expanded yarn woven fabric and expanding the expanded yarn woven fabric in the width direction is provided. 3. The apparatus for producing a spread yarn fabric according to claim 2, wherein the apparatus is provided.

4. For weaving using expanded fiber bundles having a sufficient width with respect to thickness as yarns.

While maintaining a parallel relationship with each other at predetermined intervals, A pair of gripping means capable of being gripped, comprising a gripping member, while maintaining a parallel relationship with the pair of gripping means, moving each warp up and down between the pair of gripping means to open and close the warp group; Equipped with a comprehensive vehicle

An apparatus for manufacturing a spread yarn woven fabric, comprising tension setting means for adjusting and setting the tension of a warp positioned between the pair of gripping means,

An apparatus for manufacturing an expanded yarn fabric, wherein the weft insertion means performs a weft insertion operation toward the opening of the warp group, and then can perform a tensioning operation to further tension the weft after the completion of the weft insertion.

5. A pair of transfer means provided on both sides of the warp group so as to be able to reciprocate in the warp direction and for moving the weft inserted in parallel with the gripping means to the position of the gripping means on the weave front side. 5. The apparatus for producing a spread yarn woven fabric according to claim 4.

6. For weaving using expanded fiber bundles with a sufficient width for the thickness as warp yarns.

A winding means for winding the expanded yarn woven fabric after weaving,

The winding means comprises: a winding bobbin on which the expanded yarn fabric is wound; and a winding roll for guiding the expanded yarn fabric to a winding introduction portion of the winding bobbin. The expanded yarn woven fabric contacts the surface of the winding roll. An apparatus for manufacturing a spread fiber woven fabric that is configured to be in contact with and bend.