KR20020094675A - Wave forming method of metal fiber agglomerate, apparatus for using the method and metal fiber agglomerate by the same - Google Patents

Abstract

PURPOSE: A method and apparatus for forming a crimping wave having a three-dimensional structure on a metal fiber bundle are provided. Therefore, the method permits production of high quality fabrics having excellent expansion, heat retaining property, air permeability, electromagnetic wave absolving and shielding properties and antistatic property and reduces the number of process steps and costs. CONSTITUTION: A crimping wave bent in the opposite direction of the diameter direction of a metal fiber bundle is formed, at least one wave which has a phase difference of a specified angle against the crimping wave and is bent in the opposite direction, is continuously formed to form a plurality of waves which have a specified phase difference against the crimping wave, and is radially extruded. The wave forming apparatus comprises: plural pairs of rotation members(21,22,23,24) having a plurality of wave forming protrusions(21a,22a,23a,24a) which are constructed radially while maintaining a predetermined interval on a transfer path of the metal fiber bundle and disposed at a pitch distance sufficient to be alternately engaged each other; and a means for driving the plural pairs of rotation members.

Description

WAVE FORMING METHOD OF METAL FIBER AGGLOMERATE, APPARATUS FOR USING THE METHOD AND METAL FIBER AGGLOMERATE BY THE SAME}

The present invention relates to a method and apparatus for manufacturing a metal fiber bundle used for the purpose of antistatic and / or microwave reflection / absorption, and in particular, to increase the bonding strength during spinning of metal fiber or spinning of metal fiber and general fiber. The present invention relates to a wave forming method and apparatus for forming a metal wave bundle in a bundle, and a metal fiber bundle having a three-dimensional wave shape produced thereby.

Such metal fibers, according to US Patent No. 2050298, 3277564 or 3394213, cover the metal wire with a coating made of a metal other than the metal wire (for example, copper coating on stainless steel wire), These bundles of sheathed wires are wrapped with metal pipes and the pipes are reduced to composite bundles having a predetermined diameter by a continuous wire drawing step, whereby the wires are deformed into fine fibers which are separated and embedded by a continuous soft metal matrix of coating material. It is manufactured by. Here, if the desired end diameter is obtained, the coating material is removed by a suitable pickling means or solvent, thus becoming an uncoated fiber bundle.

However, since the metal fiber produced by the above process is made in a straight form, when the spinning (spinning of metal fibers or spinning of metal fibers and ordinary fibers: the same as below) slipping and slipping, but not stretchy purpose There was a problem that I could not get the tissue paper.

In order to solve the above problem, Korean Patent Registration No. 1993-0003953 describes a zigzag-shaped waveform, ie, a zigzag waveform, in a metal fiber bundle by passing a composite matrix fiber bundle reduced to a desired end diameter through a pair of gear rollers prior to pickling operation. A technique for forming a wave is disclosed. Since the metal fiber produced by this method has a zigzag waveform formed on the metal fiber, the bonding force may be increased when spinning the metal fiber, and the quality of the fabric paper may be improved by improving the elasticity of the fiber and forming a pore layer. In addition, there is an advantage that the electromagnetic wave absorption shielding ability and the antistatic ability of the textile paper is improved.

However, the wave shaping method of the metal fiber bundle according to the related art as described above is a method of forming a wave in the metal fiber bundle by passing the metal fiber bundle through a pair of nips to form a wave. Can only be formed regularly. Therefore, the bonding force and the elasticity to some extent compared to the above-described linear metal fiber, but the effect is improved, but there is a limit in improving the bonding force, elasticity, heat retention, breathability, electromagnetic wave absorption / shielding and antistatic performance of the woven paper.

In addition, in the conventional metal fiber manufacturing method, in the etching process for removing the coating material of the metal fiber bundle having a predetermined wave, each metal fiber bundle is provided with a separate plastic support for preventing contact between the metal fiber bundles. Since there is a need to install at, there is a problem that it causes an increase in the number of processes and an increase in cost. That is, the conventional wave-formed metal fiber bundles, when accommodated in the etching solution for etching, the plurality of metal fiber bundles received together due to the two-dimensionally regular wave is forced to contact each other, and thus Since the etching is not performed, in order to prevent this, a separate plastic support for preventing the contact of the metal fiber bundles as described above in each metal fiber bundle is installed in the etching solution. For this reason, the number of processes increases and manufacturing cost becomes high.

The present invention has been devised in view of the above, by forming a wave of a three-dimensional structure protruding in any direction with a predetermined phase difference to the bundle of metal fibers, it is possible to increase the bonding force during spinning Provides a wave forming method and apparatus for forming a bundle of metal fiber bundles to form a wave on the metal fiber bundle to obtain a high-quality fabric paper with excellent elasticity, insulation, and breathability, as well as excellent electromagnetic wave absorbing / shielding and antistatic performance. Its purpose is to.

Another object of the present invention is to form a wave of a three-dimensional array in the metal fiber bundle, it is possible to reduce the number of processes and cost savings as a separate support is not required in the etching process for removing the coating material of the metal fiber bundle. The present invention provides a wave forming method and apparatus for metal fiber bundles.

Still another object of the present invention is to provide a metal fiber bundle having a wave of a three-dimensional array manufactured by the wave forming method and apparatus of the metal fiber bundle as described above.

1 is a schematic view for explaining a wave forming method and apparatus of a metal fiber bundle according to an embodiment of the present invention,

FIG. 2 is an exploded perspective view of first to fourth rotating members which are main parts of the metal fiber bundle wave forming apparatus according to the present invention shown in FIG. 1;

3 is an assembled perspective view of FIG.

4 is a view showing an example of the arrangement of the waveform forming protrusions formed on the first to fourth rotating members which are main parts of the present invention;

5 is a schematic view showing a wave forming apparatus of a metal fiber bundle according to another embodiment of the present invention, and

FIG. 6 is a view showing an arrangement example of the wave forming protrusions formed on the first to sixth rotation members, which are main parts of the wave forming apparatus of the metal fiber bundle according to another embodiment of the present invention shown in FIG. 5.

<Description of Symbols for Main Parts of Drawings>

10; metal fiber bundle 21, 22, 23, 24, 25, 26; rotating member

21a, 22a, 23a, 24a, 25a, 26a; waveform forming protrusions

30; rotating member drive means 31; motor

32,32 ', 33,33', 34,34 ', 35,35'; bevel gear

41, 42, 43, 44, 45, 46; shaft 51, 52, 53, 54, 55, 56; coupling

In the wave shaping method of the metal fiber bundle according to the present invention for achieving the above object, after forming a waveform that is bent in a direction opposite to the radial direction of the metal fiber bundle, and has a phase angle of a predetermined angle with respect to the waveform and the opposite direction By continuously forming at least one or more other waveforms that are bent into a, it is characterized in that to form a plurality of waves protruding in any direction with a predetermined phase difference in the bundle of metal fibers.

The wave forming apparatus of the metal fiber bundle according to the present invention for implementing the above method is provided in a radial direction by maintaining a predetermined interval on the transport path of the metal fiber bundle, and a plurality of arranged at a sufficient pitch interval to alternately engage. A plurality of pairs of rotating members formed on the outer circumferential surface of the wave forming protrusion; And means for rotationally driving the plurality of pairs of rotating members. The wave forming apparatus of the metal fiber bundle according to the present invention forms a plurality of waveforms protruding in an arbitrary direction to the metal fiber bundle passing therebetween while the rotating members of the pair opposing to each other alternately or sequentially engage.

Here, the rotating members may be provided to face each other at an interval of 90 degrees on the conveying path of the metal fiber bundle, but is not necessarily limited to this, the metal fiber bundle is transferred to form a pair of six rotating members to each other It may be provided at a 60 degree placement interval on the path. In the former case, a wave form protruding in four directions is formed on the metal fiber bundle, and in the latter case, a wave form protrudes in the six direction. In the same principle, increasing the number of rotating members can yield a larger number of waveforms. Therefore, the number of the rotating members is not necessarily limited.

According to a preferred embodiment of the present invention, a wave forming apparatus of a metal fiber bundle is arranged to rotate in engagement with each other on the transport path of the metal fiber bundle, a pair of a plurality of corrugated forming protrusions having a constant pitch interval each formed on the outer peripheral surface First and third rotating members; A plurality of corrugated protrusions are disposed on the outer circumferential surface of the outer peripheral surface and are arranged to be engaged with each other in a direction perpendicular to the first and third rotating members, and have a sufficient pitch interval so as not to interfere when the first and third rotating members are engaged and rotated. Another pair of second and fourth rotating members each formed; And means for rotationally driving the first to fourth rotating members. As described above, in the present invention, two waveforms having a predetermined phase difference in a bundle of metal fibers passing through the bite section are continuously formed by alternately engaging the first and third rotating members and the second and fourth rotating members. Is formed.

Here, the rotating member driving means is composed of one motor as a driving source and four pairs of bevel gears provided at the end of the central shaft of each rotating member for transmitting the power of the motor to the first to fourth rotating members. .

According to another preferred embodiment of the present invention, the wave forming apparatus of the metal fiber bundle,

A pair of first and fourth rotating members disposed on the transfer path of the metal fiber bundles to rotate with each other, the plurality of corrugating protrusions having a predetermined pitch interval formed on the outer circumferential surface thereof; A plurality of waveforms arranged to be engaged with each other in a direction shifted at an angle of 60 degrees with respect to the first and fourth rotating members, and spaced at a sufficient pitch interval so as not to interfere when the first and fourth rotating members are engaged and rotated. Another pair of second and fifth rotating members having a forming protrusion formed on an outer circumferential surface thereof; The first and fourth rotary members and the second and fifth rotary members are disposed to be engaged with each other in a direction shifted at an angle of 60 degrees with respect to the second and fifth rotary members, so that the first and fourth rotary members and the second and fifth rotary members do not interfere with each other. Another pair of third and sixth rotating members each having a plurality of corrugated protrusions spaced at a sufficient pitch interval on an outer circumferential surface thereof; And means for rotationally driving the first to sixth rotation members. The present invention is directed to a bundle of metal fibers that pass through their cross section by rotating the first and fourth rotating members, the second and fifth rotating members, and the third and sixth rotating members alternately engaged. Three waveforms having a phase difference in degrees are formed in succession.

Here, the rotating member driving means is composed of one motor as a driving source and six couplings provided to connect the central shaft ends of the respective rotating members to transfer the power of the motor to the first to sixth rotating members. .

According to the above method and apparatus, since the three-dimensional array of waves protruding in at least four directions thereof are formed in the metal fiber bundle, the bonding force of the fibers can be increased during spinning, and the insulation, breathability, electromagnetic shielding properties and The antistatic performance can be further enhanced, resulting in higher quality and more functional textiles.

Best Mode for Carrying Out the Invention Preferred embodiments of the present invention will now be described based on the accompanying drawings.

1 is a schematic diagram illustrating a method and apparatus for forming a wave of a metal fiber bundle according to an embodiment of the present invention, and FIG. 2 is a first part of a main portion of the wave bundle device of the metal fiber bundle according to the present invention shown in FIG. 1. 3 is an exploded perspective view of the fourth rotating member, FIG. 3 is an assembled perspective view of FIG. 2, and FIG. 4 is a view showing an example of arrangement of wave forming protrusions of the first to fourth rotating members, which are main parts of the present invention.

As shown in Figures 1 to 3, the wave forming apparatus of the metal fiber bundle according to an embodiment of the present invention, a pair of first and first installed to face each other on the transport path of the metal fiber bundle 10 3 rotating members 21 and 23 and another pair of second and fourth rotating members 22 and 24 provided to face each other in a direction perpendicular to the first and third rotating members 21 and 23. And rotating member driving means 30 for rotating the rotating members.

The first to fourth rotating members 21, 22, 23, and 24 are disposed at an angle of 90 degrees with respect to the metal fiber bundle 10, and the metal fiber bundle 10 is rotated. Passing through the common cross section of the members, at this time, the first and the third rotating member 21, 23 is engaged with the wave form on the metal fiber bundle 10, and then the second and fourth rotating member As the (22) and (24) are engaged, a second waveform is formed in the metal fiber bundle 10 which is bent in a direction perpendicular to the waveform.

To this end, a plurality of corrugation forming protrusions 21a, 22a, 23a, 24a is formed on the outer circumferential surface of each of the rotating members 21, 22, 23, 24 to maintain a constant pitch interval. The pitch intervals of the corrugation forming protrusions 21a, 22a, 23a, and 24a formed on the rotating members 21, 22, 23, and 24 are determined by the first rotating member 21 and the third rotating member ( When the corrugation forming projections 21a and 23a of 23 are engaged, the corrugation forming projections 22a and 24a of the second rotating member 22 and the fourth rotating member 24 are spaced apart at sufficient intervals so as not to be engaged. . That is, as shown in Fig. 4, each of the waveform forming protrusions 21a, 22a, 23a, 24a of the first to fourth rotating members 21, 22, 23, 24 is, for example, In the case of the first rotating member 21, the pitch interval between the first protrusion 21a-1 and the second protrusion 21a-2 is between the second and fourth rotating members 22, 23 and 24 therebetween. It has a magnitude such that the waveform forming projections 22a, 23a, and 24a of the &lt; RTI ID = 0.0 &gt; Accordingly, after the first and third rotating members 21 and 23 rotate in engagement with each other, the corrugation forming projections of the next second and fourth rotating members 22 and 24 in the space existing behind the biting section thereof. Can be engaged without interfering with the corrugation forming projections of the first and third rotating members 21 and 23, and in the same principle, next to the first and third rotating members 21 and 23. The engagement is repeated over and over again.

As described above, the first and third rotating members 21 and 23 and the second and fourth rotating members 22 and 24 alternately repeatedly engage and rotate with each other, and pass through the foreign material section thereof. There is a continuous wave form that is bent in the opposite direction with a phase difference of 90 degrees, so that the wave of the three-dimensional structure is formed on the discharged metal fiber bundle.

The rotating member driving means 30 is composed of a motor 31 which is a driving source and a gear train which simultaneously transmits the power of the motor 31 to each of the rotating members 21, 22, 23, 24. The gear train has four pairs of bevel gears 32 installed to engage the ends of the shafts 41, 42, 43, 44 provided at the center of each of the rotating members 21, 22, 23, 24. 32 ', 33', 33 ', 34, 34', 35, and 35 '. As the bevel gears are separated from each other, the power of the motor 31 is transmitted to each of the rotating members, and the rotating members are driven to rotate.

At this time, each of the rotating rotating members are arranged such that the waveform forming protrusions have a phase difference as shown in FIG. 4 at the initial position setting, whereby the first rotating member and the third rotating member are rotated even though the four rotating members simultaneously rotate. After the member is engaged, the second rotating member and the fourth rotating member can be engaged. That is, since the waveform forming projections of each rotating member are spaced apart from each other by a sufficient pitch interval, the above-mentioned repeated biting may be sequentially performed without interference with each other.

Hereinafter, the operation of the metal fiber bundle wave forming apparatus according to the present invention configured as described above.

Of course, although not shown in the figure, the metal fiber bundle 10, which is a molded object, is wound around a supply reel, where the first to fourth rotating members 21, 22, 23, 24 are unwound. The metal fiber bundle 10, through which the predetermined wave is formed, is passed through the biting space, and is wound around the winding reel, not shown.

During the movement of the metal fiber bundles as described above, each rotating member is rotated according to the driving of the motor, whereby a predetermined wave is formed in the metal fiber bundles by the wave forming protrusions formed on the respective rotating members.

Specifically, although the rotating members are rotating at the same time by the power of the motor, each of the rotating members alternately repeats regular bites with the rotating members. That is, the first rotating member and the third rotating member are first engaged with each other, whereby a single wave form bent in opposite directions is formed in the metal fiber bundle passing therebetween. At the end of the biting section of the first rotating member and the third rotating member, the second rotating member and the fourth rotating member are engaged with the space existing at the rear end of the corrugation forming protrusion, whereby the metal fiber bundle Following the waveform, a second waveform having a phase difference of 90 degrees with this waveform, which is bent in the opposite direction, is formed. As a result of repeating this process, a wave of a three-dimensional structure protruding in four directions with a phase difference of 90 degrees from each other is formed in the metal fiber bundle.

5 is a schematic view showing a wave forming apparatus of a metal fiber bundle according to another embodiment of the present invention, and FIG. 6 is a view showing an arrangement example of a wave forming protrusion of a rotating member which is a main part of the present embodiment.

As can be seen from the drawings, the basic structure or principle of the metal fiber bundle wave forming apparatus according to another embodiment of the present invention is similar to the embodiment of the present invention described above. In this embodiment, however, the three pairs of rotating members 21, 22, 23, 24, 25 and 26 are arranged at intervals of 60 degrees with respect to the circumferential direction of the metal fiber bundle.

The rotating members are formed by pairing the first rotating member 21 and the fourth rotating member 24, the second rotating member 22 and the fifth rotating member 25, and the third rotating member 23. And the sixth rotating member 26 are arranged on the conveying path of the metal fiber bundle to form a pair. Here, the pair of rotating members as described above, the metal fiber bundle passing through their biting section while engaging in the order of the first and fourth rotating member, the second and fifth rotating member, the third and sixth rotating member. A predetermined waveform is formed in.

And, as described above, the corrugation forming protrusions 21a, 2a, 23a, 24a, 25a, and 26a are formed on the outer circumferential surface of each rotating member. The corrugation forming projections are, for example, the pitch interval between the first corrugation forming projections 21a-1 and the second corrugation forming projections 21a-2 of the first rotating member is such that the pitches of the second to sixth rotating members are between them. It is large enough to accommodate the corrugating protrusions. Thus, after the first rotating member and the second rotating member are engaged, the second rotating member and the fifth rotating member can be engaged without interference in the subsequent space, and then the third rotating member and the sixth rotating member It can also be engaged without interfering with the corrugated forming projections of the second rotary member and the fifth rotary member.

In this embodiment, as a means for rotationally driving the rotating members as described above, connecting one motor 31 and the shafts 41, 42, 43, 44, 45, 46 of each rotating member. The configuration provided with couplings 51, 52, 53, 54, 55 and 56, such as a universal joint, is adopted. In addition, in this embodiment, since it is difficult to directly transfer the power of the motor 31, as shown in FIG. 5, the drive gear 31a is coupled to the motor shaft, and the driven gear 31b engaged with the motor shaft is coupled to one side shaft. Coupled to (41), the power of the motor is configured to be transmitted to each rotating member.

The action and principle of the metal fiber bundle wave forming apparatus according to another embodiment of the present invention configured as described above are the same as in the above-described embodiment, but in this embodiment, three pairs of rotating members are rotated by one motor to form a wave. Therefore, the metal fiber bundle has a feature of forming a wave protruding in six directions with a phase difference of 60 degrees.

On the other hand, in the above described an example in which the rotating member is disposed at intervals of 90 degrees or at intervals of 60 degrees on the transport path of the metal fiber bundle, but the rotating member may be configured with a larger number, for example, 8 pairs, 10 pairs. In addition, such diesel, metal fiber bundles can form a wave protruding in more various directions. Therefore, it is obvious that the range is not limited to the number of the rotating members in the illustrated example.

According to the present invention as described above, since the wave of the three-dimensional structure protruding in the four, six or more directions in the metal fiber bundle is formed, compared to the metal fiber having a wave of the conventional two-dimensional structure Bonding force can be further increased. That is, since the metal fiber has a wave shape having a three-dimensional structure like a general fiber yarn, it is possible to obtain a high-quality fabric paper by naturally combining with the fiber yarn without slipping during spinning.

Furthermore, according to the present invention, since the wave shape is large and irregular, not only the elasticity and the restoring force of the fiber are improved, but also the strength of the fiber is improved and the three-dimensional pore layer is generated. This is improved and quality can be improved.

In addition, the metal fiber produced by the present invention because the three-dimensional wave due to the larger the contact area for electromagnetic waves or static electricity in the fabric paper, the production of functional fibers, textile paper with excellent electromagnetic absorption shielding and antistatic performance Becomes possible.

Further, according to the present invention, since the wave is formed three-dimensionally in etching the metal fiber bundle in which the wave is formed, the contact area between the metal fiber bundles accommodated in the etching liquid can be minimized. In the same etching, it is not necessary to use a separate support for preventing the metal fiber bundles from contacting each other, thereby reducing the number of processes and reducing the cost.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and function as it is shown and described. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (11)

In the method of forming a wave in a bundle of metal fibers reduced to the desired end diameter by the stretching step, After forming a waveform that is bent in a direction opposite to the radial direction of the metal fiber bundle, and subsequently forming at least one other waveform that is bent in the opposite direction with a phase angle of a predetermined angle with respect to the waveform, the predetermined amount to the metal fiber bundle Wave forming method of a metal fiber bundle, characterized in that to form a plurality of waves protruding radially with a phase difference of. The method of claim 1, A wave shaping method for a bundle of metal fibers, wherein a wave is formed in the bundle of metal fibers and then another waveform having a phase difference of 90 degrees with respect to the wave is formed. The method of claim 1, A method of forming a wave of a metal fiber bundle, wherein a wave is formed in the bundle of metal fibers, and second and third waveforms having a phase difference of 60 degrees with respect to the wave are formed. An apparatus for shaping a wave on a bundle of metal fibers reduced to a desired end diameter by an stretching process, A plurality of rotating members provided in a radial direction while maintaining a predetermined interval on the transport path of the metal fiber bundles and having a plurality of wave-forming protrusions arranged at sufficient pitch intervals to alternately engage each other; And Means for rotationally driving the plurality of pairs of rotating members; Wave forming apparatus of a metal fiber bundle, characterized in that to form a plurality of waveforms protruding in an arbitrary direction to the metal fiber bundle passing through the pair of rotating members facing each other alternately or in turn. The method of claim 4, wherein The wave forming apparatus of the metal fiber bundle, characterized in that two pairs of the rotating member is arranged at intervals of 90 degrees on the conveying path of the metal fiber bundle. The method of claim 4, wherein Wave forming apparatus of a metal fiber bundle, characterized in that the three pairs of the rotating member is arranged at intervals of 60 degrees on the conveying path of the metal fiber bundle. An apparatus for shaping a wave on a bundle of metal fibers reduced to a desired end diameter by an stretching process, A pair of first and third rotating members disposed on the transfer path of the metal fiber bundles to rotate with each other, and having a plurality of wave-forming protrusions having a predetermined pitch interval on the outer circumferential surface; Disposed on the outer circumferential surface of the plurality of corrugating protrusions, each of which is disposed to engage with each other in a vertical direction with respect to the first and third rotating members, and has a sufficient pitch interval so as not to interfere when the first and third rotating members are engaged and rotated. Another pair of second and fourth rotating members formed; And Means for driving the first to fourth rotating members to rotate; The first and third rotary members and the second and fourth rotary members are alternately engaged to rotate so that two waveforms having a predetermined phase difference are successively formed in the metal fiber bundle passing through the bite section. Wave forming apparatus of a metal fiber bundle, characterized in that configured. The method of claim 7, wherein The rotating member driving means comprises one motor as a driving source and four pairs of bevel gears provided at the end of the central shaft of each rotating member for transmitting power of the motor to the first to fourth rotating members. Wave forming device for metal fiber bundles. An apparatus for shaping a wave on a bundle of metal fibers reduced to a desired end diameter by an stretching process, A pair of first and fourth rotating members disposed on the transfer path of the metal fiber bundles, the plurality of corrugating protrusions having a predetermined pitch interval formed on the outer circumferential surface thereof, respectively; A plurality of waveforms arranged to be engaged with each other in a direction shifted at an angle of 60 degrees with respect to the first and fourth rotating members, and spaced at a sufficient pitch interval so as not to interfere when the first and fourth rotating members are engaged and rotated. Another pair of second and fifth rotating members each having a forming protrusion formed on an outer circumferential surface thereof; The first and fourth rotary members and the second and fifth rotary members are disposed to be engaged with each other in a direction shifted at an angle of 60 degrees with respect to the second and fifth rotary members, so that the first and fourth rotary members and the second and fifth rotary members do not interfere with each other. Another pair of third and sixth rotating members each having a plurality of corrugated protrusions spaced at a sufficient pitch interval on an outer circumferential surface thereof; And Means for rotationally driving the first to sixth rotation members; A phase difference of 60 degrees between the first and fourth rotating members, the second and fifth rotating members, and the third and sixth rotating members, in which the metal fiber bundles passing through the bite section are rotated by being engaged. Wave forming apparatus of the metal fiber bundle, characterized in that configured to form three waveforms having a continuous. The method of claim 9, The rotating member driving means is composed of one motor as a driving source and six couplings installed to connect the central shaft ends of the respective rotating members to transfer the power of the motor to the first to sixth rotating members. Wave forming apparatus for metal fiber bundles. A metal fiber bundle having a three-dimensional array of waves projecting in an arbitrary direction with a predetermined phase difference formed by the metal fiber bundle wave forming apparatus according to any one of claims 4 to 10.