EP3974568B1 - Machine textile - Google Patents

Machine textile Download PDF

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Publication number
EP3974568B1
EP3974568B1 EP21206657.5A EP21206657A EP3974568B1 EP 3974568 B1 EP3974568 B1 EP 3974568B1 EP 21206657 A EP21206657 A EP 21206657A EP 3974568 B1 EP3974568 B1 EP 3974568B1
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EP
European Patent Office
Prior art keywords
feed roller
yarn
antistatic
yarns
unit
Prior art date
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Active
Application number
EP21206657.5A
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German (de)
English (en)
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EP3974568A1 (fr
Inventor
Shigeki Kitagawa
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TMT Machinery Inc
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TMT Machinery Inc
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Publication date
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Publication of EP3974568A1 publication Critical patent/EP3974568A1/fr
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist

Definitions

  • the present invention relates to a textile machine configured to produce or process synthetic fiber yarns.
  • Textile machines configured to process yarns include, for example, a draw texturing machine disclosed in Japanese Unexamined Patent Publication No. 2007-277751 .
  • a draw texturing machine disclosed in Japanese Unexamined Patent Publication No. 2007-277751 .
  • yarns running along a yarn path are processed.
  • static electricity is generated at parts of the machine with which the running yarns are in contact with, due to the friction between the yarns and the parts.
  • static electricity does not have a fatal effect, and therefore no special countermeasure against the static electricity has been taken so far in textile machines.
  • Other examples of the prior art can be seen in documents EP 2 674 379 A2 , JP S59 1 57675 A , and FR 1 205 522 A .
  • the static electricity may cause the following problem: the static electricity possibly makes the running of the yarns unstable, and this worsens the performance in yarn placement and/or increases the rate of occurrence of yarn breakage due to yarn swing, leading to poor operability. Furthermore, if the running of the yarns becomes unstable due to the effect of the static electricity, the yarns may deviate from the intended yarn path. In this case, there is a possibility that the yarns cannot be properly processed and therefore the yarns have poor quality.
  • An object of the present invention is, in a textile machine configured to produce or process a synthetic fiber yarn, to minimize the effect of static electricity which has not been dealt with, and thereby to stabilize the running of the yarn.
  • a textile machine configured to produce or process a synthetic fiber yarn includes an antistatic unit configured to remove static electricity from a static-buildup part at which the static electricity is generated due to the yarn running while being in contact with the static-buildup part.
  • the antistatic unit is provided to remove the static electricity from the static-buildup part. This arrangement minimizes the effect of the static electricity at the static-buildup part, and enables stabilization of the running of the yarn.
  • the static-buildup part is a rotating body configured to rotate while being in contact with the yarn, and the antistatic unit is provided with respect to the rotating body.
  • the static-buildup part includes: a high-speed feed roller configured to feed the yarn; and a low-speed feed roller provided downstream of the high-speed feed roller in a yarn running direction and configured to feed the yarn at a conveyance speed lower than that of the high-speed feed roller so that the yarn is relaxed between the high-speed feed roller and the low-speed feed roller, the high-speed and low-speed feed rollers functioning as the rotating body, and the antistatic unit is provided with respect to at least the high-speed feed roller in a manner to prevent buildup of static electricity in the high-speed feed roller.
  • the running of the yarn relaxed on the downstream side of the high-speed feed roller in the yarn running direction becomes unstable due to the effect of the static electricity building up in the high-speed feed roller on the upstream side in the yarn running direction. Accordingly, the running of the relaxed yarn is able to be stabilized by providing the antistatic unit with respect to the high-speed feed roller.
  • a twisting unit configured to twist the yarn is provided upstream of the high-speed feed roller in the yarn running direction, and a heater configured to heat the yarn is provided between the high-speed feed roller and the low-speed feed roller in the yarn running direction, it is effective to provide the antistatic unit with respect to the high-speed feed roller because the yarn heated by the heater is in a relaxed state.
  • the antistatic unit is provided so as not to be in contact with the rotating body.
  • the antistatic unit If the antistatic unit is in contact with the rotating body, the antistatic unit and the rotating body may wear out. This causes a possibility that the static electricity cannot be properly removed and/or the frequency of part replacement increases. In addition, the contact of the antistatic unit with the rotating body may increase, rather than decrease, the amount of static electricity generated between the antistatic unit and the rotating body. In the above arrangement, however, the antistatic unit is not in contact with the rotating body. In this case, the problems such as above are avoidable.
  • the rotating body includes: a rotation shaft; and a roller attached to the rotation shaft and having an outer circumferential surface with which the yarn is in contact, and that the antistatic unit is provided with respect to the rotation shaft.
  • the antistatic unit is provided with respect to the rotation shaft, the antistatic unit has a smaller size in the radial direction of the rotation body than in the case in which the antistatic unit is provided with respect to a roller.
  • this arrangement enables the antistatic unit to have a compact structure.
  • the antistatic unit includes: a grounded supporting member; and an antistatic member attached to the supporting member so as to be along the outer circumferential surface of the rotation shaft.
  • the antistatic member is provided so as to be along the outer circumferential surface of the rotation shaft, a large area is reserved for the static electricity discharged from the rotation shaft to the antistatic member. This further ensures the removal of the static electricity.
  • the antistatic member is provided along an axial direction of the rotation shaft.
  • This arrangement reduces non-uniformity of the antistatic ability in the axial direction. As a result, the static electricity is preferably removed.
  • the antistatic member includes conductive fibers exposed on a surface of the antistatic member at a plurality of positions.
  • this antistatic member With the use of this antistatic member, the static electricity is discharged to the plurality of positions at which the conductive fibers exposed. Thus, this arrangement improves the antistatic ability of the antistatic member.
  • a cover member covering the antistatic member is provided to prevent exposure of the antistatic member.
  • Dust or the like attached to the antistatic member may make it difficult for the static electricity to be discharged to the antistatic member, and thereby reduce the antistatic ability.
  • the cover member provided as described above prevents dust or the like from being attached to the antistatic member, and therefore the reduction of the antistatic ability is avoided.
  • the textile machine may be configured to process the yarn, which is made of nylon.
  • a textile machine of the present invention is applied to a draw texturing machine configured to false-twist synthetic fiber yarns such as nylon or polyester yarns to get the yarns textured, and thereby to produce processed yarns having good stretchability.
  • FIG. 1 is a schematic diagram illustrating the structure of a draw texturing machine 1 of the present embodiment.
  • the draw texturing machine 1 includes: a yarn supplying unit 2 configured to supply yarns Y; a processing unit 3 configured to subject the yarns Y supplied by the yarn supplying unit 2 to false-twist texturing, and a winding unit 4 configured to wind the yarns Y having been subjected to false-twist texturing by the processing unit 3, to form packages P.
  • the yarn supplying unit 2 includes creel stands 10 each configured to support a plurality of yarn supply packages Q.
  • the yarn supplying unit 2 is configured to supply yarns Y to the processing unit 3.
  • the processing unit 3 includes a first feed roller 11, twist-stopping guides 12, first heaters 13, coolers 14, twisting units 15, a second feed roller 16, interlacing devices 17, a third feed roller 18, second heaters 19, and a fourth feed roller 20. These members are arranged in this order from an upstream side in a yarn running direction. Note that the yarn running direction is the direction in which yarns Y run along their yarn path.
  • the winding unit 4 is configured to wind, by using winding devices 21, the yarns Y having been subjected to false-twist texturing in the processing unit 3, and to form packages P.
  • the draw texturing machine 1 includes main frames 5 and winding bases 6. Each winding base 6 is provided apart from the corresponding main frame 5 in a left-right direction in FIG. 1 . Hereinafter, this direction is referred to as a "base width direction”.
  • the main frame 5 and the winding base 6 extend in a direction orthogonal to the sheet of FIG. 1 (hereinafter, this direction is referred to as a "base longitudinal direction"), and have the substantially same length in the base longitudinal direction.
  • the winding base 6 is opposed to the main frame 5.
  • An upper portion of the main frame 5 is connected with an upper portion of the winding base 6 by a supporting frame 7.
  • Each of the devices structuring the processing unit 3 is mostly attached to the main frame 5 or the supporting frame 7.
  • main frame 5 There is a working space 8 surrounded by the main frame 5, the winding base 6, and the supporting frame 7.
  • the main frame 5, the winding base 6, and the supporting frame 7 are arranged so as to surround the working space 8, so that yarns Y run mainly around the working space 8.
  • the draw texturing machine 1 has unit sections called spans.
  • spans In each span, the main frame 5 and the winding base 6 opposed to the main frame 5 are included as a set.
  • the above-mentioned devices are arranged so that yarns Y running while being arranged side by side in the base longitudinal direction can be subjected to false-twist texturing at the same time.
  • pairs of spans are lined up in the base longitudinal direction. Each pair of spans are provided left-right symmetrically with respect to a center line C of the main frame 5 that is at the center in the base width direction. Note that the main frame 5 is common between the left and right spans. The following describes the details of the processing unit 3.
  • the first feed roller 11 is configured to feed yarns Y supplied from the yarn supplying unit 2 toward the first heaters 13.
  • the first feed roller 11 is provided to an upper portion of the winding base 6.
  • the first feed roller 11 is constituted by drive and driven rollers (not illustrated) provided for the respective yarns Y supplied from the yarn supplying unit 2.
  • the drive rollers are aligned and the driven rollers are aligned, both in the base longitudinal direction.
  • Each twist-stopping guide 12 is configured to prevent twisting of the corresponding yarn Y imparted by the later-described twisting unit 15 from being transmitted to the upstream side relative to the twist-stopping guide 12 in the yarn running direction.
  • the twist-stopping guides 12 are provided downstream of the first feed roller 11 in the yarn running direction, and upstream of the first heaters 13 in the yarn running direction.
  • the twist-stopping guides 12 are provided for the respective yarns Y supplied from the yarn supplying unit 2, and aligned in the base longitudinal direction.
  • the specific structure of each twist-stopping guide 12 is not limited. For example, it is possible to adopt the configuration described in Published Japanese Translation of PCT Application No. 2008-544100 or the configuration described in Japanese Unexamined Patent Publication No. 2012-102452 .
  • the first heaters 13 are configured to heat the yarns Y fed from the first feed roller 11, and provided onto the supporting frame 7. Each first heater 13 extends obliquely in a plane orthogonal to the base longitudinal direction.
  • the twist-stopping guides 12, the coolers 14, and the twisting units 15 are provided substantially along the direction in which the first heaters 13 extend.
  • the first heaters 13 are provided for the yarns Y supplied from the yarn supplying unit 2, and aligned in the base longitudinal direction.
  • the coolers 14 are configured to cool the yarns Y heated by the first heaters 13.
  • the coolers 14 are provided downstream of the first heaters 13 in the yarn running direction and upstream of the twisting units 15 in the yarn running direction.
  • the coolers 14 are provided for the respective yarns Y supplied from the yarn supplying unit 2, and aligned in the base longitudinal direction.
  • the twisting units 15 are configured to twist the yarns Y and provided to an upper portion of the main frame 5.
  • the twisting units 15 are provided for the respective yarns Y cooled by the coolers 14, and aligned in the base longitudinal direction. The details of each twisting unit 15 will be described later.
  • the second feed roller 16 is configured to feed the yarns Y twisted by the twisting units 15 toward the interlacing devices 17.
  • the second feed roller 16 is provided to the main frame 5 and below the twisting units 15.
  • the second feed roller 16 is constituted by drive and driven rollers (not illustrated) provided for the respective yarns Y twisted by the twisting units 15.
  • the drive rollers are aligned and the driven rollers are aligned, both in the base longitudinal direction.
  • the conveyance speed at which the yarns Y are conveyed by the second feed roller 16 is higher than the conveyance speed at which the yarns Y are conveyed by the first feed roller 11, and therefore the yarns Y are drawn between the first feed roller 11 and the second feed roller 16.
  • the interlacing devices 17 are configured to impart entanglement to the yarns Y by ejecting air to the yarns Y
  • the interlacing devices 17 are provided to the main frame 5 and below the second feed roller 16.
  • the interlacing devices 17 are provided for the respective yarns Y fed by the second feed roller 16, and aligned in the base longitudinal direction.
  • the third feed roller 18 is configured to feed the yarns Y to which entanglement has been imparted by the interlacing devices 17, toward the second heaters 19.
  • the third feed roller 18 is provided to the main frame 5 and below the interlacing devices 17.
  • the third feed roller 18 is constituted by drive and driven rollers (not illustrated) provided for the respective yarns Y to which entanglement has been imparted by the interlacing devices 17.
  • the drive rollers are aligned and the driven rollers are aligned, both in the base longitudinal direction.
  • the conveyance speed at which the yarns Y are conveyed by the third feed roller 18 is lower than the conveyance speed at which the yarns Y are conveyed by the second feed roller 16, and therefore the yarns Y are relaxed between the second feed roller 16 and the third feed roller 18.
  • the second heaters 19 are configured to heat the yarns Y fed by the third feed roller 18.
  • the second heaters 19 are provided to the main frame 5 and below the third feed roller 18. Each second heater 19 extends in the vertical direction. For each of the spans, one second heater 19 is provided.
  • the fourth feed roller 20 is configured to feed the yarns Y heated by the second heaters 19 toward the winding devices 21.
  • the fourth feed roller 20 is provided to a lower portion of the winding base 6.
  • the fourth feed roller 20 is constituted by drive and driven rollers (not illustrated) provided for the respective yarns Y heated by the second heaters 19.
  • the drive rollers are aligned and the driven rollers are aligned, both in the base longitudinal direction.
  • the conveyance speed at which the yarns Y are conveyed by the fourth feed roller 20 is lower than the conveyance speed at which the yarns Y are conveyed by the third feed roller 18, and therefore the yarns Y are relaxed between the third feed roller 18 and the fourth feed roller 20.
  • the yarns Y having been drawn between the first feed roller 11 and the second feed roller 16 are twisted by the twisting units 15. Twisting by the twisting units 15 is transmitted to the positions corresponding to the twist-stopping guides 12, but the twisting is not transmitted to the upstream side relative to the twist-stopping guides 12 in the yarn running direction.
  • the yarns Y twisted while being drawn are heated by the first heaters 13, and then cooled by the coolers 14, to be thermally set.
  • the false-twisted yarns Y are untwisted after passing through the twisting units 15 and before reaching the second feed roller 16. Because the twisting of the yarns Y have been thermally set as described above, filaments of the yarns are kept wavy, i.e., textured.
  • FIG. 2 is a schematic diagram illustrating the structure of the twisting unit 15.
  • Each twisting unit 15 of the present embodiment is of a so-called friction disc type.
  • the twisting unit 15 has three spindles 31 to which friction discs 32 are attached.
  • To each spindle 31, two friction discs 32 are provided apart from each other in an axial direction of the spindles ("spindle axial direction").
  • the friction discs 32 are arranged so that their positions in the spindle axial direction are different from one another among the spindles 31.
  • the three spindles 31 are arranged so that their respective centers are respectively positioned at the vertexes of an equilateral triangle when viewed from the spindle axial direction.
  • the plurality of (six, in the present embodiment) friction discs 32 are arranged in a spiral manner.
  • an antistatic unit is provided with respect to the third feed roller 18 in the draw texturing machine 1 of the present embodiment.
  • the following will describe the antistatic unit provided with respect to the third feed roller 18.
  • Such an antistatic unit may be provided with respect to, not only the third feed roller 18, but also any static-buildup part of the draw texturing machine 1 at which harmful effect can be caused by static electricity.
  • FIG. 3 and FIG. 4 each is a perspective view of a part of the third feed roller 18.
  • FIG. 3 shows the state in which cover members 45 covering a rotation shaft 43 and a cover member 60 covering an antistatic unit 50 are attached, and therefore the rotation shaft 43 and the antistatic unit 50 cannot be seen.
  • FIG. 4 shows the state in which the cover members 45 and 60 are detached, and therefore the rotation shaft 43 and the antistatic unit 50 are exposed. Note that in FIG. 4 , driven rollers 42 and support brackets 44 are not illustrated.
  • the third feed roller 18 includes: drive rollers 41 configured to be rotated by an unillustrated drive motor; and driven rollers 42 each in contact with the corresponding drive roller 41 and configured to rotate with the rotation of the drive roller 41.
  • Each drive roller 41 is made of metal, i.e., conductive material, while each driven roller 42 is made of rubber, i.e., insulating material.
  • a yarn Y is nipped between the drive roller 41 and the driven roller 42. The yarn Y is fed to the downstream side in the yarn running direction as the drive roller 41 rotates in a predetermined direction.
  • the drive rollers 41 are attached to the rotation shaft 43 (see FIG. 4 ) extending along the base longitudinal direction. That is, the drive rollers 41 are supported by the single rotation shaft 43.
  • the rotation shaft 43 is rotated by the above-described drive motor, and as the rotation shaft 43 rotates, the drive rollers 41 rotate.
  • the rotation shaft 43 is also made of metal, i.e., conductive material.
  • the driven rollers 42 are provided in correspondence with the drive rollers 41, respectively, so as to be arranged in the base longitudinal direction.
  • Each driven roller 42 is supported rotatably by the support bracket 44 and by an unillustrated bearing which are provided for the driven roller 42.
  • static electricity generated by the friction between the roller and the yarns Y is less likely to move to the driven rollers 42 that are insulating members. Because of this, the static electricity is moved to the drive rollers 41 that are conductive members, and is further movable to the rotation shaft 43, which is a conductive member, via the drive rollers 41.
  • the rotation shaft 43 is rotatably supported by an unillustrated bearing. In the bearings supporting the driven rollers 42 and the bearing supporting the rotation shaft 43, insulating grease is used for lubrication, and therefore it is difficult to dissipate the static electricity via these bearings. For this reason, static electricity is more likely to build up particularly in the drive rollers 41 and the rotation shaft 43 each made of conductive material.
  • the antistatic unit 50 including a supporting member 51 and an antistatic member 52 is provided in the vicinity of the rotation shaft 43 to remove static electricity from the rotation shaft 43, as shown in FIG. 4 .
  • FIG. 5 is a schematic cross section illustrating how the antistatic unit 50 and the cover member 60 are attached. The cross section is taken orthogonally to the base longitudinal direction.
  • the antistatic unit 50 includes: the supporting member 51 made of metal and fixed to a metal frame 5a structuring the main frame 5; and the antistatic member 52 attached to the supporting member 51.
  • the supporting member 51 is fixed to the frame 5a, and thereby indirectly grounded via the frame 5a.
  • the supporting member 51 may be directly grounded.
  • the supporting member 51 includes: a fixed portion 51a bolted to the frame 5a; a holding portion 51b holding the antistatic member 52; a connecting portion 51c connecting the fixed portion 51a with the holding portion 51b; and a cover attaching portion 51d to which the cover member 60, which will be described later, is attached.
  • the fixed portion 51a and the holding portion 51b are opposed to each other, and the rotation shaft 43 is interposed between the fixed portion 51a and the holding portion 51b.
  • the holding portion 51b has a flat-plate shape extending along the axial direction of the rotation shaft 43.
  • the holding portion 51b is positioned approximately 5 mm to 10 mm above an upper end portion (top portion) of the rotation shaft 43.
  • the antistatic member 52 has conductive fibers exposed on its surface at multiple positions. Because the antistatic member 52 is provided along the rotation shaft 43, electricity is discharged from the rotation shaft 43 to the multiple positions of the antistatic member 52. As a result, static electricity is efficiently removed from the rotation shaft 43.
  • the antistatic unit 50 fixed to the frame 5a is covered with the cover member 60.
  • the cover member 60 has a substantially U shape, and includes: a cover portion 60a covering the antistatic unit 50; and a fixed portion 60b formed by bending so as to form a substantially right angle at an end portion of the cover portion 60a.
  • the fixed portion 60b of the cover member 60 is bolted to the frame 5a, and the other end portion of the cover portion 60a of the cover member 60 is bolted to the cover attaching portion 51d of the supporting member 51.
  • the outer circumferential surface of the cover portion 60a is substantially at the same position as the outer circumferential surfaces of the drive rollers 41 with respect to the radial direction. Due to this, the antistatic unit 50 and the cover member 60 do not greatly project radially outward relative to the drive rollers 41.
  • the machine includes the antistatic unit 50 configured to remove static electricity from a static-buildup part (the third feed roller 18) at which the static electricity is generated due to the yarns Y running while being in contact with the static-buildup part.
  • This arrangement minimizes the effect of the static electricity at the static-buildup part, and enables stabilization of the running of the yarns Y
  • the static-buildup part is a rotating body (the third feed roller 18) with which the running yarns Y are in contact, and the antistatic unit 50 is provided with respect to the rotating body.
  • the antistatic unit 50 is provided with respect to the rotating body.
  • the machine includes a high-speed feed roller (the third feed roller 18) configured to feed the yarns Y; and a low-speed feed roller (the fourth feed roller 20) provided downstream of the high-speed feed roller in the yarn running direction and configured to feed the yarns Y at a conveyance speed lower than that of the high-speed feed roller so that the yarns Y are relaxed between the high-speed feed roller and the low-speed feed roller, the high-speed and low-speed feed rollers functioning as the rotating body, and the antistatic unit 50 is provided with respect to at least the high-speed feed roller.
  • the twisting units 15 configured to twist the yarns Y are provided upstream of the high-speed feed roller (the third feed roller 18) in the yarn running direction, and the second heaters 19 configured to heat the yarns Y are provided between the high-speed feed roller and the low-speed feed roller (the fourth feed roller 20) in the yarn running direction.
  • the second heaters 19 configured to heat the yarns Y are provided between the high-speed feed roller and the low-speed feed roller (the fourth feed roller 20) in the yarn running direction.
  • the antistatic unit 50 is provided so as not to be in contact with the rotating body (the third feed roller 18, particularly the rotation shaft 43). If the antistatic unit 50 is in contact with the rotating body, the antistatic unit 50 and the rotating body may wear out. This causes a possibility that the static electricity cannot be properly removed and/or the frequency of part replacement increases. In addition, the contact of the antistatic unit 50 with the rotating body may increase, rather than decrease, the amount of static electricity generated between the antistatic unit 50 and the rotating body. In this regard, however, the antistatic unit 50 is not in contact with the rotating body in the embodiment. In this case, the wear out of the antistatic unit 50 and the rotating body is preventable, and problems such as above are avoidable.
  • the rotating body (the third feed roller 18) includes: the rotation shaft 43; and the rollers 41 attached to the rotation shaft 43 and having the outer circumferential surfaces with which the yarns Y are in contact.
  • the antistatic unit 50 is provided with respect to the rotation shaft 43. Because the antistatic unit 50 is provided with respect to the rotation shaft 43 as described above, the antistatic unit 50 has a smaller size in the radial direction than in the case in which the antistatic unit 50 is provided with respect to the rollers 41. Thus, this arrangement enables the antistatic unit 50 to have a compact structure.
  • the antistatic unit 50 includes: the grounded supporting member 51; and the antistatic member 52 attached to the supporting member 51 so as to be along the outer circumferential surface of the rotation shaft 43.
  • the antistatic member 52 is provided so as to be along the outer circumferential surface of the rotation shaft 43, a large area is reserved for the static electricity discharged from the rotation shaft 43 to the antistatic member 52. This further ensures the removal of the static electricity.
  • the antistatic member 52 is provided along the axial direction of the rotation shaft 43. This arrangement reduces non-uniformity of the antistatic ability in the axial direction. As a result, the static electricity is preferably removed.
  • the static electricity is discharged to the plurality of positions at which the conductive fibers are exposed on the surface of the antistatic member 52. This arrangement improves the antistatic ability of the antistatic member 52.
  • the cover member 60 covering the antistatic member 52 is provided to prevent exposure of the antistatic member 52. Dust or the like attached to the antistatic member 52 may make it difficult for the static electricity to be discharged to the antistatic member 52, and thereby reduce the antistatic ability.
  • the cover member 60 provided as described above prevents dust or the like from being attached to the antistatic member 52, and therefore the reduction of the antistatic ability is avoidable.
  • the present invention is applied to the draw texturing machine 1.
  • the present invention is applicable to textile machines configured to produce or process synthetic fiber yarns, such as a draw texturing machine having a structure other than that of the above-described embodiment and a spun yarn take-up apparatus.
  • the part with respect to which the antistatic unit 50 is provided is not limited to the third feed roller 18.
  • the running of the yarns Y tends to be unstable in the interlacing devices 17 due to the effect of static electricity building up in the second feed roller 16 provided upstream of the interlacing devices 17 in the yarn running direction, because the yarns Y are relaxed to appropriately impart entanglement to the yarns Y
  • the second feed roller 16 is equivalent to the "high-speed feed roller” in the present invention
  • the third feed roller 18 is equivalent to the "low-speed feed roller” in the present invention.
  • the basic structure of the second feed roller 16 is similar to that of the third feed roller 18.
  • the antistatic unit 50 may be provided with respect to any static-buildup part other than the above, such as the first feed roller 11, the fourth feed roller 20, and the twist-stopping guides 12.
  • the specific structure of the antistatic unit 50 is not limited to that described in the above-described embodiment.
  • the antistatic unit 50 may be provided with respect to the rotation shaft 43 of the drive rollers 41.
  • the antistatic unit 50 may be provided with respect to the drive rollers 41.
  • the antistatic unit 50 may be configured to be in contact with the static-buildup part.
  • the antistatic unit 50 may include an antistatic metal needle or the like provided in the vicinity of the static-buildup part, so that static electricity is discharged from the static-buildup part to the antistatic needle.
  • the antistatic member 52 may be yarns incorporating therein conductive fibers and tied in a bundle.
  • the antistatic member 52 is the bundle of the yarns
  • the antistatic member 52 is easily attached to the supporting member 51.
  • the antistatic member 52 is easily attached to the supporting member 51.
  • each twisting unit 15 is a friction disc type twisting unit
  • a belt type nip twister as disclosed in Japanese Unexamined Patent Publication No. 2010-65354 may be used, for example.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Elimination Of Static Electricity (AREA)

Claims (10)

  1. Machine textile (1) configurée pour produire ou traiter un fil de fibre synthétique, la machine textile (1) comprenant :
    une partie d'accumulation d'électricité statique (18, 20);
    dans laquelle la partie d'accumulation d'électricité statique (18, 20) est un corps rotatif configuré pour tourner tout en étant en contact avec le fil (Y) ;
    la partie d'accumulation d'électricité statique (18, 20) comprenant :
    un rouleau d'alimentation à grande vitesse (18) configuré pour fournir le fil (Y) ; et
    un rouleau d'alimentation à faible vitesse (20) prévu en aval du rouleau d'alimentation à grande vitesse (18) dans une direction de défilement de fil et configuré pourfournir le fil (Y) à une vitesse de transport inférieure à celle du rouleau d'alimentation à grande vitesse (18) de sorte que le fil (Y) est relâché entre le rouleau d'alimentation à grande vitesse (18) et le rouleau d'alimentation à faible vitesse (20),
    les rouleaux d'alimentation à grande vitesse (18) et à faible vitesse (20) fonctionnant comme le corps rotatif,
    caractérisée par
    une unité antistatique (50) configurée pour éliminer l'électricité statique de la partie d'accumulation d'électricité statique (18, 20) au niveau de laquelle l'électricité statique est générée en raison du défilement du fil (Y) tandis qu'il est en contact avec la partie d'accumulation d'électricité statique (18, 20); dans laquelle l'unité antistatique (50) est prévue par rapport au corps rotatif ;
    dans laquelle l'unité antistatique (50) est prévue par rapport à au moins le rouleau d'alimentation à grande vitesse (18) de manière à empêcher l'accumulation d'électricité statique dans le rouleau d'alimentation à grande vitesse (18).
  2. Machine textile (1) selon la revendication 1, dans laquelle une unité de torsion (15) configurée pour tordre le fil (Y) est prévue en amont du rouleau d'alimentation à grande vitesse (18) dans la direction de défilement du fil, et un dispositif de chauffage (19) configuré pour chauffer le fil (Y) est prévu entre le rouleau d'alimentation à grande vitesse (18) et le rouleau d'alimentation à faible vitesse (20) dans la direction de défilement du fil.
  3. Machine textile (1) selon la revendication 1, dans laquelle un dispositif d'entrelacement configuré pour conférer un enchevêtrement au fil (Y) est prévu entre le rouleau d'alimentation à grande vitesse (18) et le rouleau d'alimentation à faible vitesse (20) dans la direction de défilement du fil.
  4. Machine textile (1) selon l'une quelconque des revendications 1 à 3, dans laquelle l'unité antistatique (50) est prévue de façon à ne pas être en contact avec le corps rotatif.
  5. Machine textile (1) selon l'une quelconque des revendications 1 à 4, dans laquelle
    le corps rotatif inclut
    un arbre de rotation (43), et
    un rouleur (41) fixé à l'arbre de rotation (43) et présentant une surface circonférentielle externe avec laquelle le fil (Y) est en contact, et dans laquelle
    l'unité antistatique (50) est prévue par rapport à l'arbre de rotation (43).
  6. Machine textile (1) selon la revendication 5, dans laquelle
    l'unité antistatique (50) inclut :
    un élément de support mis à la terre (51) ; et
    un élément antistatique (52) fixé à l'élément de support (51) de façon à être le long de la surface circonférentielle externe de l'arbre de rotation (43).
  7. Machine textile (1) selon la revendication 6, dans laquelle l'élément antistatique (52) est prévu le long d'une direction axiale de l'arbre de rotation (43).
  8. Machine textile (1) selon la revendication 6 ou 7, dans laquelle l'élément antistatique (52) inclut des fibres conductrices exposées sur une surface de l'élément antistatique (53) au niveau d'une pluralité de positions.
  9. Machine textile (1) selon l'une quelconque des revendications 6 à 8, dans laquelle un élément de couvercle (60) recouvrant l'élément antistatique (52) est prévu pour empêcher l'exposition de l'élément antistatique (52).
  10. Machine textile (1) selon l'une quelconque des revendications 1 à 9, dans laquelle la machine textile (1) est configurée pour traiter le fil (Y) et le fil (Y) est fait de nylon.
EP21206657.5A 2016-06-27 2017-06-19 Machine textile Active EP3974568B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016126468A JP6697963B2 (ja) 2016-06-27 2016-06-27 繊維機械
EP17176573.8A EP3266913B1 (fr) 2016-06-27 2017-06-19 Machine textile

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP17176573.8A Division EP3266913B1 (fr) 2016-06-27 2017-06-19 Machine textile
EP17176573.8A Division-Into EP3266913B1 (fr) 2016-06-27 2017-06-19 Machine textile

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EP3974568A1 EP3974568A1 (fr) 2022-03-30
EP3974568B1 true EP3974568B1 (fr) 2023-10-04

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EP17176573.8A Active EP3266913B1 (fr) 2016-06-27 2017-06-19 Machine textile

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CN (1) CN107541825B (fr)
TW (1) TWI735605B (fr)

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Publication number Priority date Publication date Assignee Title
CN110923892A (zh) * 2019-11-22 2020-03-27 杭州昌翔化纤新材料有限公司 一种热箱导静电装置
CN112239904A (zh) * 2020-10-22 2021-01-19 河北瑞日机电科技有限公司 一种可导出主牵伸区静电的上销组件
JP2024029748A (ja) 2022-08-22 2024-03-06 Ｔｍｔマシナリー株式会社 糸処理設備および糸処理設備システム

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Publication number Priority date Publication date Assignee Title
US2690628A (en) * 1951-05-11 1954-10-05 Int Harvester Co Glass fiber drawing mechanism with means for accentuating strand discharge
FR1205522A (fr) * 1957-04-19 1960-02-03 Universal Winding Co Procédé et appareil pour le traitement de fils extensibles
FR2450889A1 (fr) * 1979-03-09 1980-10-03 Asa Sa Broche de texturation par fausse torsion par friction externe
JPS59157675A (ja) * 1983-02-28 1984-09-07 Canon Inc 除電装置
US6226972B1 (en) * 1997-12-10 2001-05-08 Izumi International, Inc. Twisted union yarn manufacturing method and device
DE102005029400A1 (de) 2005-06-24 2007-01-04 Saurer Gmbh & Co. Kg Drallstopvorrichtung
JP2007277751A (ja) 2006-04-05 2007-10-25 Tmt Machinery Inc 仮撚加工機
JP2010065354A (ja) 2008-09-12 2010-03-25 Murata Machinery Ltd ベルト式仮撚装置
AT510668B1 (de) 2010-11-06 2015-06-15 Saurer Components Gmbh Drallstopprolle
CN202127542U (zh) * 2011-07-21 2012-01-25 孙洛雷 静电消除器
JP2014015334A (ja) * 2012-06-11 2014-01-30 Tmt Machinery Inc 巻取管、巻取管に形成される複数のパッケージ、及び複数のパッケージの製造方法
CN203513870U (zh) * 2013-09-17 2014-04-02 宜昌经纬纺机有限公司 一种玻璃纤维加捻设备
CN204168573U (zh) * 2014-09-10 2015-02-18 新昌县远德纺织机械有限公司 一种纺织机可调式除静电装置
CN204325617U (zh) * 2014-12-11 2015-05-13 徐州华奥纺织有限公司 一种静电消除罗拉

Also Published As

Publication number Publication date
EP3974568A1 (fr) 2022-03-30
TW201800632A (zh) 2018-01-01
EP3266913A1 (fr) 2018-01-10
CN107541825A (zh) 2018-01-05
TWI735605B (zh) 2021-08-11
CN107541825B (zh) 2021-07-30
JP2018003167A (ja) 2018-01-11
JP6697963B2 (ja) 2020-05-27
EP3266913B1 (fr) 2023-01-18

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