EP4108817A1 - Machine de texturation de faux fils tordus - Google Patents

Machine de texturation de faux fils tordus Download PDF

Info

Publication number
EP4108817A1
EP4108817A1 EP22174263.8A EP22174263A EP4108817A1 EP 4108817 A1 EP4108817 A1 EP 4108817A1 EP 22174263 A EP22174263 A EP 22174263A EP 4108817 A1 EP4108817 A1 EP 4108817A1
Authority
EP
European Patent Office
Prior art keywords
yarn
false
cooling
cooling space
partition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22174263.8A
Other languages
German (de)
English (en)
Inventor
Akihito Imanaka
Shigeki Kitagawa
Takayuki Horimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TMT Machinery Inc
Original Assignee
TMT Machinery Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TMT Machinery Inc filed Critical TMT Machinery Inc
Publication of EP4108817A1 publication Critical patent/EP4108817A1/fr
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • D02G1/04—Devices for imparting false twist
    • 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
    • D02G1/04—Devices for imparting false twist
    • D02G1/08—Rollers or other friction causing elements
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass

Definitions

  • the present invention relates to a false-twist texturing machine configured to perform false-twist texturing for yarns.
  • Patent Literature 1 Japanese Patent No. 4462751 discloses a false-twist texturing machine configured to perform false-twist texturing for yarns made of synthetic fibers.
  • the false-twist texturing machine includes false-twisting devices configured to twist the respective yarns, a cooler provided upstream of the false-twisting devices in a yarn running direction in which the yarns run, and a heater provided upstream of the cooler in the yarn running direction.
  • the running yarns having been twisted by the false-twisting devices are heated by the heater so as to be thermally set, and then the yarns are cooled by the cooler.
  • the crimp of the yarns is fixed by this, with the result that yarns with loftiness are produced.
  • An object of the present invention is to suppress the loss of production efficiency and homogeneity and to achieve a good yarn quality, even when thick yarns are subjected to false-twist texturing.
  • a false-twist texturing machine is configured to be able to simultaneously perform false-twist texturing for a first yarn and a second yarn that are running, and incudes: a false-twisting device which is configured to twist the first yarn and the second yarn; and a cooler which is provided upstream of the false-twisting device in a yarn running direction in which the first yarn and the second yarn run and is configured to cool the first yarn and the second yarn, the false-twisting device including: a disc rotatable about a rotational axis direction that is a predetermined direction; a first belt unit that is provided on one side in the predetermined direction of the disc; and a second belt unit that is provided on the other side in the predetermined direction of the disc, the disc including: a first contact surface that is provided at an end on the one side in the predetermined direction; and a second contact surface that is provided at an end on the other side in the predetermined direction, the first belt unit including a first
  • the first yarn is sandwiched between the first belt member and the first contact surface whereas the second yarn is sandwiched between the second belt member and the second contact surface.
  • the twisting of the first yarn and the second yarn is ensured.
  • the first contact surface and the second contact surface are formed on the same disc, the distance between the first yarn and the second yarn is short in the false-twisting device. It is therefore possible to twist a large number of yarns in a small space.
  • the position where the first yarn is false-twisted is advantageously close to the position where the second yarn is false-twisted. This makes it possible to suppress paths of the first yarn and the second yarn from being significantly different (and to suppress inconsistency in yarn quality between the first yarn and the second yarn due to the difference between the yarn paths).
  • the first yarn and the second yarn are reliably cooled by cooling wind. Furthermore, because the first cooling space and the second cooling space are formed in the same cooling unit, the distance between the first yarn and the second yarn is advantageously short in the cooler. It is therefore possible to cool a large number of yarns in a small space. Furthermore, because the distance between the first yarn and the second yarn is short as described above, it is possible to suppress the yarn paths of the first yarn and the second yarn from being significantly different (and to suppress the above-described inconsistency in yarn quality due to the difference between the yarn paths).
  • the false-twist texturing machine of the first aspect is arranged so that the first cooling space and the second cooling space are provided to be side by side in the predetermined direction.
  • the first yarn and the second yarn it is possible to maintain the first yarn and the second yarn to be side by side in the predetermined direction when the first yarn and the second yarn are sent from the cooler to the false-twisting device.
  • This makes it possible to further suppress the yarn paths of the first yarn and the second yarn from being different as compared to a case where, for example, the first cooling space predetermined direction and the second cooling space are aligned in a direction different from the predetermined direction. Therefore, the difference in quality can be effectively suppressed between the first yarn and the second yarn.
  • the false-twist texturing machine of the second aspect is arranged so that, when a distance between an upstream end in the yarn running direction of the first cooling space and an upstream end in the yarn running direction of the second cooling space in the predetermined direction is WC1 and a distance between a downstream end in the yarn running direction of the first cooling space and a downstream end in the yarn running direction of the second cooling space in the predetermined direction is WC2, a relationship of WC2 ⁇ WC1 is satisfied.
  • the false-twist texturing machine of the second or third aspect further includes: a heater which is provided upstream of the cooler in the yarn running direction; an upstream guide member which is provided between the heater and the cooler in the yarn running direction; and a downstream guide member which is provided between the cooler and the false-twisting device in the yarn running direction, the upstream guide member causing a distance between the first yarn and the second yarn in the predetermined direction to be equal to W1, the downstream guide member causing a distance between the first yarn and the second yarn in the predetermined direction to be equal to W2, and when a distance between an upstream end in the yarn running direction of the first cooling space and an upstream end in the yarn running direction of the second cooling space in the predetermined direction is WC1 and a distance between a downstream end in the yarn running direction of the first cooling space and a downstream end in the yarn running direction of the second cooling space in the predetermined direction is WC2, a relationship of W2 ⁇ WC2 ⁇ WC1 ⁇ W1 or W1 ⁇
  • the yarn threading in threading to the cooling unit, the yarn threading can be done while maintaining both of the first yarn and the second yarn to be substantially linear. In other words, it is scarcely necessary to bend the first yarn and the second yarn in the yarn threading to the cooling unit. It is therefore easy to simultaneously thread the first yarn and the second yarn to the cooling unit.
  • the false-twist texturing machine of any one of the second to fourth aspects is arranged so that the cooling unit includes a partition member which separates the first cooling space from the second cooling space in the predetermined direction.
  • the first cooling space and the second cooling space may not be separated from each other. In such a case, however, the first yarn and the second yarn may be entangled for some reason. The occurrence of such a problem is reliably avoided by the aspect of the present invention, because the first cooling space and the second cooling space are separated by the partition member.
  • the false-twist texturing machine of the fifth aspect is arranged so that the intake space extends in the predetermined direction, and each of the first cooling space and the second cooling space is connected to the intake space.
  • each of the first cooling space and the second cooling space is connected to the intake space extending in the predetermined direction (i.e., the spaces are connected in a parallel manner). It is therefore possible to substantially uniformly supply the cooling wind to the first cooling space and the second cooling space by a simple structure.
  • the false-twist texturing machine of the fifth or sixth aspect is arranged so that the partition member includes: a first partition portion having a first partition surface which is provided on the one side in the predetermined direction in order to form the first cooling space; and a second partition portion having a second partition surface which is provided on the other side in the predetermined direction in order to form the second cooling space
  • the cooling unit includes: a first wall member which has a first wall surface that is provided on the one side in the predetermined direction of the first partition surface in order to form the first cooling space; and a second wall member which has a second wall surface that is provided on the other side in the predetermined direction of the second partition surface in order to form the second cooling space.
  • the first partition surface of the partition member and the first wall surface of the first wall member form the first cooling space. Furthermore, the second partition surface of the partition member and the second wall surface of the second wall member form the second cooling space. In this way, the first cooling space and the second cooling space can be formed by simple structures.
  • the false-twist texturing machine of the seventh aspect is arranged so that the first partition surface is provided to oppose the first wall surface in the predetermined direction, and the second partition surface is provided to oppose the second wall surface in the predetermined direction.
  • the first yarn when the first yarn is twisted by the false-twisting device and then makes contact with the wall surface forming the first cooling space, the first yarn may roll along the wall surface and drop off from the first cooling space.
  • the possibility of the occurrence of this problem is high particularly when the entrance through which the first yarn enters the first cooling space is wide.
  • the second cooling space According to the aspect of the present invention, the first partition surface is arranged to face the first wall surface in the predetermined direction (i.e., these surfaces are substantially in parallel to each other). This arrangement makes it possible to narrow the entrance of the first cooling space. The same applies to the second cooling space. It is therefore possible to prevent the first yarn from dropping off from the first cooling space and prevent the second yarn from dropping off from the second cooling space.
  • the false-twist texturing machine of the seventh or eighth aspect is arranged so that the cooling unit includes: a first yarn guide which is provided between the first partition surface and the first wall surface in the predetermined direction to guide the first yarn to the downstream side in the yarn running direction; and a second yarn guide which is provided between the second partition surface and the second wall surface in the predetermined direction to guide the second yarn to the downstream side in the yarn running direction.
  • the cooling unit may be arranged to cool the yarn by the cooling wind and the wall surface and the partition surface cooled by the cooling wind.
  • the yarn tends to roll along the wall surface or the partitioning surface when the yarn is twisted by the false-twisting device.
  • the possibility of drop-off of the yarn from the cooling space is increased.
  • the first yarn is guided to the downstream side in the yarn running direction by the first yarn guide, whereas the second yarn is guided to the downstream side in the yarn running direction by the second yarn guide.
  • the cooling unit is not arranged so that the yarn is intentionally made in contact with the partitioning surface and the wall surface. It is therefore possible to avoid the occurrence of the above-described problem.
  • the false-twist texturing machine of any one of the seventh to ninth aspects is arranged so that the first wall member and the second wall member are attached to the intake duct, and at least one of the first wall member or the second wall member is arranged to support the partition member.
  • the cooling unit can be designed such that the shorter the partition member in the predetermined direction, the shorter the distance in the predetermined direction between the first cooling space and the second cooling space. In other words, it is possible to narrow the distance between the first yarn and the second yarn.
  • the partition member when the partition member is very short in the predetermined direction, the partition member may not be able to be attached to (e.g., screwed to) the intake duct.
  • the partition member can be supported by at least one of the first wall member or the second wall member. It is therefore possible to properly position the partition member even when the partition member cannot be attached to the intake duct.
  • the false-twist texturing machine of the tenth aspect is arranged so that both of the first wall member and the second wall member are arranged to support the partition member.
  • the partition member is supported at both ends by the first wall member and the second wall member. It is therefore possible to stably support the partition member.
  • the false-twist texturing machine of any one of the seventh to eleventh aspects is arranged so that at least the partition member is arranged to be movable relative to the first wall member and the second wall member.
  • At least the partition member is arranged to be movable relative to the first wall member and the second wall member. This relative movement encompasses a case where, for example, the first wall member and the second wall member are movable relative to the partition member. As a result, a wide space used for cleaning the members can be secured. The work efficiency of operations such as cleaning is therefore improved.
  • the false-twist texturing machine of the twelfth aspect is arranged so that one of the first wall member and the second wall member is positionally fixed relative to the intake duct, and the partition member and the other one of the first wall member and the second wall member are movable relative to the one of the first wall member and the second wall member.
  • One of the first wall member and the second wall member will be referred to as a fixed wall member for the sake of convenience.
  • another cooling unit may be provided in the vicinity of the fixed wall member to be line-symmetrical with the above-described cooling unit about a linear line that is substantially in parallel to the longitudinal direction of the cooling unit. Even though such a cooling unit is provided, two fixed wall members neighboring each other do not move. On this account, interference between the members can be avoided when the members are moved for cleaning.
  • the false-twist texturing machine of the twelfth or thirteenth aspect is arranged so that the partition member is arranged to be attachable to and detachable from the cooling unit.
  • the partition member can be completely detached from the cooling unit, the work efficiency of operations such as cleaning is significantly improved.
  • the false-twist texturing machine of any one of the seventh to fourteenth aspects is arranged so that, when a direction orthogonal to both a longitudinal direction of the cooling unit and the predetermined direction is a height direction, the partition member includes: a first yarn insertion guiding portion which protrudes, in at least the height direction, toward a working space where yarn threading to the cooler is performed, relative to the first partition portion; and a second yarn insertion guiding portion which protrudes, in at least the height direction, toward the working space as compared to the second partition portion.
  • the first yarn when the yarn threading is performed, the first yarn can be moved along the first yarn insertion guiding portion and the second yarn can be moved along the second yarn insertion guiding portion. This improves the success rate of the yarn threading.
  • the false-twist texturing machine of the fifteenth aspect is arranged to further comprise a heater which is provided upstream in the yarn running direction of the cooler and is configured to heat the first yarn and the second yarn, the false-twisting device, the cooler, and the heater being provided above the working space and an upstream end portion in the yarn running direction of the heater being distanced upward from the cooler in a vertical direction as compared to a downstream end portion in the yarn running direction of the heater.
  • the upstream end portion in the yarn running direction of the heater is at a high position in the vertical direction, it is difficult for an operator to manually thread the yarn to the heater.
  • the yarn is threaded to the false-twisting device, and then the yarn is threaded to the cooler and the heater at once by using an apparatus (e.g., an air injector) by which the yarn is moved upward.
  • an apparatus e.g., an air injector
  • the improvement in the success rate of the yarn threading by the first yarn insertion guiding portion and the second yarn insertion guiding portion is particularly effective.
  • a vertical direction to the sheet of FIG. 1 is defined as a base longitudinal direction (predetermined direction of the present invention).
  • a base longitudinal direction predetermined direction of the present invention.
  • each of the near side in the sheet of FIG. 1 and the left side in the sheet of FIG. 2 will be referred to as one side in the base longitudinal direction, whereas each of the far side in the sheet of FIG. 1 and the right side in the sheet of FIG. 2 will be referred to as the other side in the base longitudinal direction.
  • the left-right direction in the sheet of FIG. 1 will be referred to as a base width direction.
  • a direction orthogonal to the base longitudinal direction and the base width direction is defined as the up-down direction (vertical direction) in which the gravity acts.
  • a direction in which yarns Y (described later) run side by side will be referred to as a yarn running direction.
  • FIG. 1 is a profile of the false-twist texturing machine 1.
  • FIG. 2 is a schematic diagram of the false-twist texturing machine 1, expanded along paths of yarns Y (yarn paths).
  • the false-twist texturing machine 1 is capable of simultaneously performing false-twist texturing for yarns Y made of synthetic fibers (e.g., polyester).
  • Each of the yarns Y is, for example, a multi-filament yarn formed of filaments. Alternatively, each yarn Y may be formed of a single filament.
  • the false-twist texturing machine 1 includes a yarn supplying unit 2, a processing unit 3, and a winding unit 4.
  • the yarn supplying unit 2 is arranged to be able to supply the yarns Y.
  • the processing unit 3 is configured to take the yarns Y out from the yarn supplying unit 2 and perform false-twist texturing for the yarns Y.
  • the winding unit 4 is configured to wind the yarns Y processed by the processing unit 3 onto winding bobbins Bw. Component of the yarn supplying unit 2, the processing unit 3, and the winding unit 4 are aligned to form plural lines (as shown in FIG. 2 ) in the base longitudinal direction.
  • the base longitudinal direction is a direction orthogonal to a running plane (plane of FIG. 1 ) of the yarns Y, which is formed by a yarn path extending from the yarn supplying unit 2 to the winding unit 4 through the processing unit 3.
  • the yarn supplying unit 2 includes a creel stand 7 retaining yarn supply packages Ps, and supplies the yarns Y to the processing unit 3.
  • the processing unit 3 is configured to take the yarns Y out from the yarn supplying unit 2 and process the yarns Y.
  • the following members are placed in this order from the upstream in the yarn running direction: first feed rollers 11; twist-stopping guides 12; first heaters 13 (heaters of the present invention); a cooler 14; false-twisting devices 15; second feed rollers 16; combining units 17; third feed rollers 18; a second heater 19; and fourth feed rollers 20.
  • the winding unit 4 includes a plurality of winding devices 21. Each winding device 21 winds the yarns Y subjected to the false-twist texturing in the processing unit 3 onto one or more winding bobbins Bw and forms one or more wound packages Pw.
  • the false-twist texturing machine 1 includes a main base 8 and a winding base 9 which are placed to be spaced apart from each other in the base width direction.
  • the main base 8 and the winding base 9 are substantially identical in length in the base longitudinal direction.
  • the main base 8 and the winding base 9 are arranged to face each other in the base width direction.
  • a working space Sw is formed between the main frame 8 and the winding base 9, to allow an operator to perform operations such as yarn threading (see FIG. 1 ).
  • the false-twist texturing machine 1 includes units which are termed spans each of which includes a pair of the main base 8 and the winding base 9.
  • each device is placed so that the yarns Y running while being aligned in the base longitudinal direction can be subjected to false-twist texturing at the same time.
  • the spans are placed in a left-right symmetrical manner to the sheet, with a center line C of the base width direction of the main base 8 as a symmetry axis (main base 8 is shared between the left span and the right span). The spans are aligned in the base longitudinal direction.
  • the structure of the processing unit 3 will be described with reference to FIG. 1 and FIG. 2 .
  • the first feed rollers 11 are arranged to unwind a yarn Y from a yarn supply package Ps attached to the yarn supplying unit 2 and feed the yarn Y to the first heater 13.
  • each first feed roller 11 can send the two yarns Y to the first heater 13.
  • the twist-stopping guide 12 is provided to prevent twist of the yarn Y formed by the false-twisting device 15 from being propagated to the upstream in the yarn running direction of the twist-stopping guide 12.
  • the first heater 13 heats the yarns Y sent from the first feed rollers 11.
  • the first heater 13 is obliquely provided so that the upstream end portion is provided above the downstream end portion in the yarn running direction (see FIG. 1 ).
  • the upstream end portion in the yarn running direction of the first heater 13 is distanced upward from the cooler 14 in the up-down direction (vertical direction) as compared to the downstream end portion in the yarn running direction of the first heater 13.
  • the first heater 13 can heat four yarns Y.
  • the disclosure is not limited to this.
  • the cooler 14 is configured to cool the yarns Y heated at the first heater 13.
  • the cooler 14 will be detailed later.
  • the false-twisting device 15 is provided on the downstream side in the yarn running direction of the cooler 14 and is configured to twist two yarns Y (a first yarn Ya and a second yarn Yb). The false-twisting device 15 will be detailed later.
  • the second feed roller 16 is configured to send the yarns Y processed by the false-twisting device 15 to the combining unit 17.
  • the conveyance speed of conveying the yarn Y by the second feed roller 16 is higher than the conveyance speed of conveying the yarn Y by the first feed rollers 11.
  • the yarn Y is therefore drawn between the first feed roller 11 and the second feed roller 16.
  • the combining unit 17 is capable of combining the first yarn Ya and the second yarn Yb into a yarn Yc.
  • the combining unit 17 includes two interlace nozzles 17a and 17b (as shown in FIG. 2 ).
  • the combining unit 17 blows air onto the first yarn Ya and the second yarn Yb (as shown at the left part of the sheet of FIG. 2 ) which are, for example, passing through the inside of the interlace nozzle 17a, and the combining unit 17 combines the first yarn Ya and the second yarn Yb by air-interlace by which the first yarn Ya is interlaced with the second yarn Yb by airflow.
  • the combining unit 17 can guide the first yarn Ya and the second yarn Yb to the downstream in the yarn running direction, without combining these yarns.
  • the first yarn Ya passes through the inside of the interlace nozzle 17a
  • the second yarn Yb passes through the inside of the interlace nozzle 17b (as shown on the right part of the sheet of FIG. 2 ).
  • a combining unit (not illustrated) having an unillustrated guide or a feed roller may be provided. This combining unit may combine two yarns Y by the guide or the feed roller, or may guide the two yarns to the downstream side in the yarn running direction without combining them.
  • the third feed roller 18 is configured to feed the yarn Y running on the downstream side of the combining unit 17 in the yarn running direction to the second heater 19.
  • the third feed roller 18 can send the two yarns Y to the second heater 19.
  • the conveyance speed of conveying the yarn Y by the third feed roller 18 is lower than the conveyance speed of conveying the yarn Y by the second feed roller 16.
  • the yarn Y is therefore relaxed between the second feed roller 16 and the third feed roller 18.
  • the second heater 19 heats the yarns Y sent from the third feed rollers 18.
  • the second heater 19 extends along the vertical direction, and one second heater 19 is provided in one span.
  • the fourth feed roller 20 sends the yarns Y heated by the second heater 19 to the winding device 21.
  • the fourth feed roller 20 can send two yarns Y to the winding device 21.
  • the conveyance speed of conveying the yarns Y by the fourth feed roller 20 is lower than the conveyance speed of conveying the yarns Y by the third feed roller 18. The yarns Y are therefore relaxed between the third feed roller 18 and the fourth feed roller 20.
  • the yarn Y drawn between the first feed roller 11 and the second feed roller 16 is twisted by the false-twisting device 15.
  • the twist formed by the false-twisting devices 15 propagates to the twist-stopping guide 12 but does not propagate to the upstream of the twist-stopping guide 12 in the yarn running direction.
  • the yarn Y which is twisted and drawn is heated at the first heater 13 and thermally set. After that, the yarn Y is cooled at the cooler 14.
  • the yarn Y is untwisted at the downstream of the false-twisting device 15 in the yarn running direction. However, the yarn Y is maintained to be wavy in shape on account of the thermal setting described above.
  • the two yarns Y are guided to the downstream side in the yarn running direction.
  • the two false-twisted yarns Y are guided to the downstream side in the yarn running direction without being combined.
  • the yarn Y is thermally processed at the second heater 19 while being relaxed between the third feed roller 18 and the fourth feed roller 20.
  • the yarn Y (the yarn Yc or the first and second yarns Ya and Yb) sent from the fourth feed roller 20 is wound by the winding device 21. As a result, one or two wound package Pw is formed at each winding device 21.
  • the winding unit 4 includes a plurality of winding devices 21.
  • each winding device 21 can wind the yarn Y or the yarns Y onto one winding bobbin Bw or two winding bobbins Bw.
  • the winding device 21 includes fulcrum guides 22, a traverse unit 23, and a cradle 24.
  • Each of the fulcrum guides 22 is a guide about which a yarn Y is traversed.
  • three fulcrum guides 22 are provided for each winding device 21 (see FIG. 2 ).
  • the yarn Yc is threaded to the central one among the three fulcrum guides 22 (as shown at the left part of the sheet of FIG. 2 ).
  • the two yarns Y are threaded to two fulcrum guides 22 at both ends among the three fulcrum guides 22, respectively (as shown in the right part of the sheet of FIG. 2 ).
  • the traverse unit 23 is capable of traversing the yarn Y by the traverse guide 25.
  • the number of the traverse guides 25 is changeable in accordance with the number of traversed yarns Y.
  • the cradle 24 is arranged to support one or two winding bobbin Bw to be freely rotatable.
  • a contact roller 26 is provided in the vicinity of the cradle 24. The contact roller 26 makes contact with the surface of one or two wound package Pw and applies contact pressure thereto.
  • the yarn Y which is sent from the fourth feed roller 20 described above is wound onto the one or two winding bobbin Bw by each winding device 21, and forms one or two wound package Pw.
  • the winding device 21 may not be structured as described above.
  • the winding device 21 may be structured to be able to simultaneously form three or more wound packages Pw.
  • the winding unit 4 may have winding devices (not illustrated) that are identical in number with the yarns Y supplied from the yarn supplying unit 2. Each of these winding devices may be able to wind one yarn Y.
  • FIG. 3 is a drawing viewed along an arrow III in FIG. 1 .
  • FIG. 4 is an enlarged view of a part of FIG. 3 , which shows an upstream end portion of the cooler 14 in the yarn running direction and its surroundings.
  • FIG. 5 is an enlarged view of a part of FIG. 3 , which shows a downstream end portion of the cooler 14 in the yarn running direction and its surroundings.
  • the first heater 13, the cooler 14, and the false-twisting device 15 are provided above the working space Sw.
  • the first heaters 13 are aligned in the base longitudinal direction.
  • Each of the first heaters 13 is capable of, for example, simultaneously heating four yarns Y that run side by side in the base longitudinal direction.
  • a yarn guide G1 (see FIG. 4 ; an upstream guide member of the present invention) is provided between the first heater 13 and the cooler 14 (i.e., on the upstream side of the cooler 14 in the yarn running direction).
  • the yarn guide G1 is arranged to guide the four yarns Y to the downstream side in the yarn running direction.
  • the pitch (interval W1; see FIG. 4 ) in the base longitudinal direction of the four yarns Y guided by the yarn guide G1 is set at 14 mm, for example.
  • the length of the interval W1 is not limited to this.
  • the cooler 14 is a contactless device configured to cool yarns Y by means of cooling wind (details will be given later). As shown in FIG. 3 , the cooler 14 includes cooling units 31 and an intake duct 32 connected to the cooling units 31. The cooler 14 supplies cooling wind to cooling spaces S (see FIG. 4 and FIG. 5 ) formed in the respective cooling units 31, by using an unillustrated suction device configured to suck gas in the intake duct 32. The yarns Y are cooled by the cooling wind.
  • the cooling units 31 are aligned in the base longitudinal direction.
  • the cooling units 31 are attached to the intake duct 32.
  • Each of the cooling units 31 extends in a direction intersecting with (more or less orthogonal to) the base longitudinal direction.
  • Each cooling unit 31 may or may not extend substantially linearly. (For example, each cooling unit 31 may be curved.)
  • Each cooling unit 31 is configured to cool two yarns Y (a first yarn Ya and a second yarn Yb).
  • Each cooling unit 31 has a first cooling space Sa for cooling the first yarn Ya and a second cooling space Sb for cooling the second yarn Yb (see FIG. 4 and FIG. 5 ).
  • the cooling units 31 include two cooling units 31A and 31B that are provided side by side in the base longitudinal direction.
  • the two cooling units 31A and 31B correspond to one first heater 13. For example, the interval in the base longitudinal direction between the cooling unit 31A and the cooling unit 31B increases toward the downstream side in the yarn running direction.
  • the two cooling units 31A and 31B are arranged to be line symmetric about a predetermined linear line L (see FIG. 3 ). The cooling units 31 will be detailed later.
  • the intake duct 32 is configured to supply cooling wind to the cooling units 31.
  • the intake duct 32 extends in the base longitudinal direction.
  • an intake space Ss is formed to extend in the base longitudinal direction.
  • the intake space Ss is connected to the cooling space S (see FIG. 4 and FIG. 5 ).
  • the cooling units 31 are attached to the intake duct 32.
  • the false-twisting devices 15 are aligned in the base longitudinal direction.
  • Each of the first false-twisting device 15 is capable of simultaneously heating two yarns Y (the first yarn Ya and the second yarn Yb) running side by side in the base longitudinal direction.
  • a yarn guide G2 (see FIG. 5 ; a downstream guide member of the present invention) is provided between the cooler 14 and the false-twisting device 15 (i.e., on the downstream side of the cooler 14 in the yarn running direction).
  • the yarn guide G2 is arranged to guide the two yarns Y to the downstream side in the yarn running direction.
  • the interval W2 (see FIG. 5 ) in the base longitudinal direction of the two yarns Y guided by the yarn guide G2 is set at, for example, 8 mm. The length of the interval W2 is not limited to this.
  • FIG. 6 is an enlarged view of a part of FIG. 3 , which shows the false-twisting device 15.
  • FIG. 7 shows the false-twisting device 15 viewed from one side in the base longitudinal direction.
  • the false-twisting device 15 is, for example, a known false-twisting device recited in Japanese Laid-Open Patent Publication No. 2018-127731 . As shown in FIG. 6 , the false-twisting device 15 includes a disc 41 and two belt units 42 (a first belt unit 42a and a second belt unit 42b). The false-twisting device 15 is arranged to twist the first yarn Ya by sandwiching the first yarn Ya between a first contact surface 41a (described later) of the disc 41 and a first endless belt 46a (described later) of the first belt unit 42a.
  • the false-twisting device 15 is arranged to twist the second yarn Yb by sandwiching the second yarn Yb between a second contact surface 41b (described later) of the disc 41 and a second endless belt 46b (described later) of the second belt unit 42b.
  • the disc 41 is a member rotatable about a rotational axis direction that is the base longitudinal direction.
  • the disc 41 is, for example, fixed to a common rotational shaft 43 extending in the base longitudinal direction.
  • the common rotational shaft 43 is arranged to connect the discs 41 provided for the respective false-twisting devices 15.
  • the common rotational shaft 43 is, for example, rotationally driven by a motor which is not illustrated. In this way, the disc 41 is rotationally driven.
  • the first contact surface 41a with which the first yarn Ya makes contact is formed.
  • the second contact surface 41b with which the second yarn Yb makes contact is formed.
  • the first belt unit 42a is provided on one side of the disc 41 in the base longitudinal direction.
  • the first belt unit 42a includes a first driving pulley 44a, a first driven pulley 45a, and a first endless belt 46a (a first belt member of the present invention).
  • the first endless belt 46a is wound on the first driving pulley 44a and the first driven pulley 45a.
  • the first yarn Ya is provided to be sandwiched between the first endless belt 46a and the first contact surface 41a.
  • the rotational axis of the first driving pulley 44a and the rotational axis of the first driven pulley 45a extend in a direction substantially orthogonal to the base longitudinal direction.
  • the rotational axis of the first driving pulley 44a and the rotational axis of the first driven pulley 45a are substantially in parallel to each other.
  • the first driving pulley 44a and the first driven pulley 45a are aligned in a direction substantially orthogonal to the common rotational shaft 43.
  • the second belt unit 42b is provided on the other side of the disc 41 in the base longitudinal direction.
  • the second belt unit 42b includes a second driving pulley 44b, a second driven pulley 45b, and a second endless belt 46b (a second belt member of the present invention).
  • the second endless belt 46b is wound on the second driving pulley 44b and the second driven pulley 45b.
  • the second yarn Yb is provided to be sandwiched between the second endless belt 46b and the second contact surface 41b.
  • the rotational shaft of the second driving pulley 44b and the rotational shaft of the second driven pulley 45b extend in a direction substantially in parallel to the rotational shaft of the first driving pulley 44a and the rotational shaft of the first driven pulley 45a.
  • the second driving pulley 44b and the second driven pulley 45b are aligned in a direction substantially orthogonal to the common rotational shaft 43.
  • the first driving pulley 44a and the second driving pulley 44b are rotationally driven by a driving unit 47 (see FIG. 7 ).
  • the driving unit 47 is arranged to rotationally drive the first driving pulley 44a and the second driving pulley 44b in opposite directions, respectively.
  • the driving unit 47 includes an unillustrated driving source (e.g., a motor), an unillustrated first power transmission member configured to transmit power of the driving source to the first driving pulley 44a, and an unillustrated second power transmission member configured to transmit the power of the driving source to the second driving pulley 44b.
  • the first belt unit 42a and the second belt unit 42b are substantially overlapped. Because of this, the yarn path of the first yarn Ya is arranged to substantially overlap the yarn path of the second yarn Yb in the false-twisting device 15, when viewed in the base longitudinal direction (see FIG. 7 ) .
  • the first yarn Ya is twisted by the first endless belt 46a and the first contact surface 41a.
  • the second yarn Yb is twisted by the second endless belt 46b and the second contact surface 41b. In this way, the two yarns Y are simultaneously twisted.
  • the first yarn Ya and the second yarn Yb are twisted in opposite directions. For example, the first yarn Ya is Z-twisted, whereas the second yarn Yb is S-twisted.
  • FIG. 8 roughly illustrates members constituting a cooling unit 31 (cooling unit 31A), and shows the cooling unit 31A in the same direction as in FIG. 3 .
  • FIG. 8 shows the cooling unit 31A roughly from below.
  • FIG. 9 is a cross section taken along a line IX-IX in FIG. 8 .
  • FIG. 10 shows a state in which a later-described partition member 53 has been detached from the cooling unit 31A.
  • FIG. 11 further schematizes the cooling unit 31A in order to make it easy to see the cooling space S.
  • the cooling unit 31A and a cooling unit 31B are arranged to be line-symmetrical (see FIG. 3 ).
  • the cooling unit 31A will be mainly detailed, and the cooling unit 31B will be only briefly described.
  • the height direction is in parallel to the up-down direction in the sheets of FIG. 9 and FIG. 10 .
  • the height direction is orthogonal to the base longitudinal direction.
  • the height direction has at least a component in the up-down direction.
  • one side in the height direction is basically equivalent to an upper side.
  • the other side in the height direction is basically equivalent to a lower side. It is, however, noted that the relationship between the height direction and the up-down direction may be changed in accordance with the orientation of the cooler 14.
  • each of the cooling unit 31A and the cooling unit 31B extend in a direction slightly tilted relative to the orthogonal direction.
  • the cooling unit 31A includes a fixed wall plate 51 (a second wall member of the present invention), a movable wall plate 52 (a first wall member of the present invention), and a partition member 53.
  • the fixed wall plate 51 is equivalent to one of the first wall member and the second wall member of the present invention.
  • the movable wall plate 52 is equivalent to the other one of the first wall member and the second wall member of the present invention.
  • the fixed wall plate 51, the movable wall plate 52, and the partition member 53 are long members provided for forming the two cooling spaces S (the first cooling space Sa and the second cooling space Sb). As shown in FIG.
  • the fixed wall plate 51, the movable wall plate 52, and the partition member 53 are long in a direction orthogonal to the height direction and intersecting with the base longitudinal direction.
  • the movable wall plate 52, the partition member 53, and the fixed wall plate 51 are provided in this order from the one side in the base longitudinal direction.
  • the movable wall plate 52 is provided on one side in the base longitudinal direction of the partition member 53 and the fixed wall plate 51.
  • the partition member 53 is on the other side of the movable wall plate 52 in the base longitudinal direction, and is adjacent to the movable wall plate 52.
  • the fixed wall plate 51 is on the other side of the partition member 53 in the base longitudinal direction, and is adjacent to the partition member 53.
  • these members are provided in the reversed order in the base longitudinal direction (see a fixed wall plate 56, a movable wall plate 57, and a partition member 58 shown in FIG. 4 ).
  • the fixed wall plate 51 will be further detailed. As shown in FIG. 9 and FIG. 10 , the fixed wall plate 51 is substantially C-shaped in cross section. That is to say, in cross sections shown in FIG. 9 and FIG. 10 , the fixed wall plate 51 has a base end portion 61, an intermediate portion 62, and a leading end portion 63.
  • the base end portion 61 is provided at an end portion on one side in the height direction of the fixed wall plate 51 and extends in the base longitudinal direction.
  • the base end portion 61 is fixed to the intake duct 32 by, for example, an unillustrated screw.
  • a wall member 33 extending in the base longitudinal direction is formed at an end portion on the other side in the height direction of the intake duct 32.
  • the base end portion 61 is screwed to the wall member 33.
  • the intermediate portion 62 extends from an end portion on one side in the base longitudinal direction of the base end portion 61 toward the other side in the height direction.
  • a wall surface 64 (a second wall surface of the present invention) is formed to extend in the height direction.
  • the wall surface 64 is a surface for forming the second cooling space Sb in the cooling unit 31A.
  • the wall surface 64 is provided with contact bodies 65 (see FIG. 10 and FIG. 11 ) that are separated from one another in the yarn running direction.
  • Each contact body 65 is arranged so that a running yarn Y (the second yarn Yb in this case) is intentionally made in contact with the contact body 65. This prevents the second yarn Yb from unintentionally making contact with a part of the wall surface 64, where no contact body 65 is provided.
  • through holes 66 are formed to penetrate the portion in the base longitudinal direction (see FIG. 9 and FIG. 10 ).
  • Each through hole 66 is a positioning hole into which a later-described positioning pin 97b is inserted.
  • the leading end portion 63 extends from an end portion on the other side in the height direction of the intermediate portion 62 toward the other side in the base longitudinal direction.
  • the movable wall plate 52 will be further detailed. As shown in FIG. 9 and FIG. 10 , the movable wall plate 52 is substantially reverse C-shaped in cross section. That is to say, in cross sections shown in FIG. 9 and FIG. 10 , the movable wall plate 52 has a base end portion 71, an intermediate portion 72, and a leading end portion 73.
  • the base end portion 71 is provided at an end portion on one side in the height direction of the movable wall plate 52 and extends in the base longitudinal direction.
  • the intermediate portion 72 extends from an end portion on the other side in the base longitudinal direction of the base end portion 71 toward the other side in the height direction.
  • a wall surface 74 (the first wall surface of the present invention) is formed to extend in the height direction.
  • the wall surface 74 is a surface for forming the first cooling space Sa in the cooling unit 31A.
  • the wall surface 74 is provided with contact bodies 75 (see FIG. 10 and FIG. 11 ) that are separated from one another in the yarn running direction.
  • Each contact body 75 is arranged so that the running first yarn Ya is intentionally made in contact with the contact body 75. This prevents the first yarn Ya from unintentionally making contact with a part of the wall surface 74, where no contact body 75 is provided.
  • through holes 76 are formed to penetrate the portion in the base longitudinal direction (see FIG. 9 and FIG. 10 ).
  • Each through hole 76 is a positioning hole into which a later-described positioning pin 97a is inserted.
  • the leading end portion 73 extends from an end portion on the other side in the height direction of the intermediate portion 72 toward the other side in the base longitudinal direction.
  • the movable wall plate 52 is, for example, attached to plural spring units 54 (see FIG. 4 , FIG. 5 , FIG. 9 , and FIG. 10 ). With this arrangement, the movable wall plate 52 is movable at least in the base longitudinal direction relative to the fixed wall plate 51. The movable wall plate 52 is movable between an operation position (see solid lines in FIG. 4 and FIG. 5 and FIG. 9 ) and a detaching position (see two-dot chain lines in FIG. 4 and FIG. 5 and FIG. 10 ). The operation position is a position of the movable wall plate 52 when the false-twist texturing machine 1 is driven.
  • the detaching position is a position of the movable wall plate 52 when the partition member 53 is to be detached from the cooling unit 31A (detailed later).
  • the spring units 54 are provided on one side in the base longitudinal direction of the movable wall plate 52.
  • spring units 59 (see FIG. 4 ) each having the same structure as the spring unit 54 are provided on the other side in the base longitudinal direction of the movable wall plate 57.
  • the spring unit 54 is a force applying unit for applying force to the movable wall plate 52 toward the fixed wall plate 51.
  • the spring unit 54 includes a torsion spring 81, a fixing member 82, and a regulating pin 83.
  • the torsion spring 81 includes a coil portion (not illustrated), a fixed arm 84 provided at one end of the coil portion, and a movable arm 85 provided at the other end of the coil portion.
  • the coil portion is fixed to the intake duct 32 by the fixing member 82.
  • the movement of the fixed arm 84 is regulated by the regulating pin 83 fixed to the intake duct 32.
  • the movable arm 85 is, for example, attached to the movable wall plate 52 and supports the movable wall plate 52.
  • the partition member 53 is a member separating the first cooling space Sa from the second cooling space Sb in the base longitudinal direction.
  • the partition member 53 is provided between the fixed wall plate 51 and the movable wall plate 52 in the base longitudinal direction.
  • the partition member 53 is detachably attached to the cooling unit 31A (as detailed later).
  • the partition member 53 includes, for example, a first partitioning plate 86a, a second partitioning plate 86b, and connection members 87.
  • the first partitioning plate 86a is connected to the second partitioning plate 86b by the connection members 87.
  • the first partitioning plate 86a and the movable wall plate 52 form the first cooling space Sa.
  • the second partitioning plate 86b and the fixed wall plate 51 form the second cooling space Sb.
  • the first cooling space Sa and the second cooling space Sb are provided to be side by side in the base longitudinal direction.
  • Each of the first cooling space Sa and the second cooling space Sb is connected to the intake space Ss.
  • the first partitioning plate 86a is a long plate member extending at least in the orthogonal direction (see FIG. 11 ).
  • the first partitioning plate 86a is provided at an end on one side in the base longitudinal direction of the partition member 53.
  • the first partitioning plate 86a is fixed to the connection members 87 by, for example, unillustrated screws.
  • the first partitioning plate 86a includes a first partition portion 88a for forming the first cooling space Sa and a first yarn insertion guiding portion 89a provided on the other side in the height direction of the first partition portion 88a (see FIG. 9 and FIG. 10 ).
  • a first partition surface 90a is formed in the first partition portion 88a.
  • the first partition surface 90a is provided on the other side in the base longitudinal direction of the wall surface 74 and opposes the wall surface 74 in the base longitudinal direction.
  • the first partition surface 90a and the wall surface 74 form the first cooling space Sa.
  • the first cooling space Sa is connected to the intake space Ss through a first intake slit 34a formed in the wall member 33 of the intake duct 32.
  • contact bodies 91a are provided to be separated from one another in the yarn running direction.
  • the contact bodies 91a and the above-described contact bodies 75 are provided in a staggered manner when viewed in the height direction (see FIG. 11 ).
  • Each contact body 91a is arranged so that the first yarn Ya is intentionally made in contact with the contact body 91a. This prevents the first yarn Ya from unintentionally making contact with a part of the first partition surface 90a, where no contact body 91a is provided.
  • a spacer 92a is provided on one side in the base longitudinal direction of the first partition surface 90a to arrange the distance between the first partition surface 90a and the wall surface 74 to be equal to a predetermined distance (see FIG. 10 ) .
  • the first partition portion 88a has through holes 93a and 94a each penetrating the portion in the base longitudinal direction (see FIG. 9 and FIG. 10 ).
  • a later-described first yarn guide 96a is inserted into the through hole 94a.
  • a later-described positioning pin 97a is inserted.
  • the first yarn insertion guiding portion 89a is provided on the other side in the height direction of the first partition portion 88a.
  • the first yarn insertion guiding portion 89a protrudes toward the other side in the height direction (i.e., toward the working space Sw) and protrudes toward the other side in the base longitudinal direction (i.e., toward the second partitioning plate 86b), as compared to the first partition portion 88a.
  • the second partitioning plate 86b is a long plate member extending at least in the orthogonal direction (see FIG. 11 ).
  • the second partitioning plate 86b is provided at an end on the other side in the base longitudinal direction of the partition member 53.
  • the second partitioning plate 86b is fixed to the connection members 87 by, for example, unillustrated screws.
  • the second partitioning plate 86b includes a second partition portion 88b for forming the second cooling space Sb and a second yarn insertion guiding portion 89b provided on the other side in the height direction of the second partition portion 88b (see FIG. 9 and FIG. 10 ).
  • a second partition surface 90b is formed in the second partition portion 88b.
  • the second partition surface 90b is provided on one side in the base longitudinal direction of the wall surface 64 and opposes the wall surface 64 in the base longitudinal direction.
  • the second partition surface 90b and the wall surface 64 form the second cooling space Sb.
  • the second cooling space Sb is connected to the intake space Ss through a second intake slit 34b formed in the wall member 33 of the intake duct 32.
  • contact bodies 91b are provided to be separated from one another in the yarn running direction.
  • the contact bodies 91b and the above-described contact bodies 65 are provided in a staggered manner when viewed in the height direction (see FIG. 11 ).
  • Each contact body 91b is arranged so that the second yarn Yb is intentionally made in contact with the contact body 91b. This prevents the second yarn Yb from unintentionally making contact with a part of the second partition surface 90b, where no contact body 91b is provided.
  • a spacer 92b that is similar to the spacer 92a is provided (see FIG. 10 ).
  • the second partition portion 88b has through holes 93b and 94b each penetrating the portion in the base longitudinal direction (see FIG. 9 and FIG. 10 ).
  • a later-described second yarn guide 96b is inserted into the through hole 94a.
  • a later-described positioning pin 97b is inserted.
  • the second yarn insertion guiding portion 89b is provided on the other side in the height direction of the second partition portion 88b.
  • the second yarn insertion guiding portion 89b protrudes toward the other side in the height direction (i.e., toward the working space Sw) and protrudes toward one side in the base longitudinal direction (i.e., toward the first partitioning plate 86a), as compared to the second partition portion 88b.
  • connection members 87 are arranged to connect the first partitioning plate 86a with the second partitioning plate 86b.
  • the connection members 87 are provided between the first partitioning plate 86a and the second partitioning plate 86b in the base longitudinal direction. As shown in FIG. 9 to FIG. 11 , each connection member 87 is provided with the first yarn guide 96a, the second yarn guide 96b, and the positioning pins 97a and 97b.
  • the first yarn guide 96a is arranged to guide the first yarn Ya to the downstream side in the yarn running direction.
  • the first yarn guide 96a is attached to a one side part in the base longitudinal direction of the connection member 87 through a spring 98a.
  • the first yarn guide 96a is inserted into the through hole 93a of the first partitioning plate 86a and protrudes toward the one side in the base longitudinal direction.
  • the first yarn guide 96a is arranged to be movable in the base longitudinal direction in accordance with the elongation and contraction of the spring 98a.
  • the spring 98a is contracted.
  • the spring 98a is in its initial state.
  • the second yarn guide 96b is arranged to guide the second yarn Yb to the downstream side in the yarn running direction.
  • the second yarn guide 96b is attached to the other side part in the base longitudinal direction of the connection member 87 through a spring 98b.
  • the second yarn guide 96b is inserted into the through hole 93b of the second partitioning plate 86b and protrudes toward the other side in the base longitudinal direction.
  • the second yarn guide 96b is arranged to be movable in the base longitudinal direction in accordance with the elongation and contraction of the spring 98b.
  • the positioning pin 97a is provided for positioning the connection member 87 with the movable wall plate 52.
  • the positioning pin 97a is fixed to a surface on one side in the base longitudinal direction of the connection member 87, for example.
  • the positioning pin 97a is inserted into the through hole 94a of the first partitioning plate 86a and protrudes toward the one side in the base longitudinal direction.
  • the positioning pin 97a can be inserted into the through hole 76 of the movable wall plate 52.
  • the positioning pin 97b is provided for positioning the connection member 87 with the fixed wall plate 51.
  • the positioning pin 97b is fixed to a surface on the other side in the base longitudinal direction of the connection member 87, for example.
  • the positioning pin 97b is inserted into the through hole 94b of the second partitioning plate 86b and protrudes toward the other side in the base longitudinal direction.
  • the positioning pin 97b can be inserted into the through hole 66 of the fixed wall plate 51.
  • the partition member 53 structured as described above is supported by the fixed wall plate 51 and the movable wall plate 52 when the movable wall plate 52 is at the above-described operation position.
  • the partition member 53 is supported at both ends by the fixed wall plate 51 and the movable wall plate 52 (see FIG. 9 ).
  • the partition member 53 is not fixed to the intake duct 32.
  • the partition member 53 is detachable from the cooling unit 31A (see FIG. 10 ).
  • the partition member 53 is attachable to and detachable from the cooling unit 31A.
  • the partition member 53 is movable relative to the fixed wall plate 51 and the movable wall plate 52.
  • the first cooling space Sa and the second cooling space Sb that are slits in shape are formed to be side by side by the base longitudinal direction.
  • the distance in the base longitudinal direction between the first cooling space Sa and the second cooling space Sb i.e., the distance between the first yarn Ya and the second yarn Yb in the base longitudinal direction
  • the distance does not change depending on a position in the direction in which the cooling unit 31A extends.
  • the distance at the upstream end in the yarn running direction of the cooling unit 31A is referred to as WC1 (see FIG. 4 ) .
  • WC1 indicates the distance in the base longitudinal direction between (i) the center in the base longitudinal direction of an end of the first cooling space Sa on one side (first heater 13 side) in the orthogonal direction and (ii) the center in the base longitudinal direction of an end of the second cooling space Sb on one side in the orthogonal direction.
  • the position of the end of the first cooling space Sa on one side is substantially identical with the position of the end of the second cooling space Sb on one side.
  • WC1 is substantially identical with the above-described distance W1 (see FIG. 4 ) or shorter than the distance W1.
  • W1 see FIG. 4
  • WC2 The distance at the downstream end in the yarn running direction of the cooling unit 31A is referred to as WC2 (see FIG. 5 ).
  • WC2 indicates the distance in the base longitudinal direction between (i) the center in the base longitudinal direction of an end of the first cooling space Sa on the other side (false-twisting device 15 side) in the orthogonal direction and (ii) the center in the base longitudinal direction of an end of the second cooling space Sb on the other side in the orthogonal direction.
  • the position of the end of the first cooling space Sa on the other side is substantially identical with the end of the second cooling space Sb on the other side.
  • WC2 is substantially identical with the above-described distance W2 (see FIG. 5 ) or longer than the distance W2.
  • W2 ⁇ WC2 WC1 ⁇ W1
  • the yarn threading can be done while maintaining both of the first yarn Ya and the second yarn Yb to be substantially linear. In other words, it is scarcely necessary to bend the first yarn Ya and the second yarn Yb in the yarn threading to the cooling unit 31A. It is therefore easy to simultaneously thread the first yarn Ya and the second yarn Yb to the cooling unit 31A.
  • the yarn Y is threaded to the false-twisting device 15 and then the yarn Y is threaded to the cooler 14 and the first heater 13.
  • an operator moves the yarn Y upward by using an unillustrated air injector.
  • the yarn Y may be not manually but automatically moved upward by an air injection robot. This is because, in the false-twist texturing machine 1 of the present embodiment, the upstream end portion in the yarn running direction of the first heater 13 is positionally high in the vertical direction and a hand of the operator cannot easily reach the upstream end portion.
  • the first yarn Ya is guided along the first yarn insertion guiding portion 89a and enters the first cooling space Sa through a first entrance 95a.
  • the second yarn Yb is guided along the second yarn insertion guiding portion 89b and enters the second cooling space Sb through a second entrance 95b. It is noted that the operator needs not to operate the cooling unit 31A when the yarn threading is performed (i.e., the movable wall plate 52 and the partition member 53 need not to be moved).
  • the yarn threading can be done while maintaining both of the first yarn Ya and the second yarn Yb to be substantially linear. In other words, it is scarcely necessary to bend the first yarn Ya and the second yarn Yb in the yarn threading to the cooling unit 31A.
  • the operator moves the movable wall plate 52 from the operation position to the detaching position and detaches the partition member 53 from the cooling unit 31A. After the completion of the cleaning of the partition member 53, the operator attaches the partition member 53 to the cooling unit 31A. To be more specific, the operator inserts the positioning pin 97b of the partition member 53 into the through hole 66 while the movable wall plate 52 is at the detaching position. Thereafter, the operator moves the movable wall plate 52 to the operation position and inserts the positioning pin 97a into the through hole 76. As a result, the partition member 53 is supported at both ends by the fixed wall plate 51 and the movable wall plate 52.
  • the first yarn Ya is sandwiched between the first endless belt 46a and the first contact surface 41a whereas the second yarn Yb is sandwiched between the second endless belt 46b and the second contact surface 41b.
  • the twisting of the first yarn Ya and the second yarn Yb is ensured.
  • the first contact surface 41a and the second contact surface 41b are formed on the same disc 41, the distance between the first yarn Ya and the second yarn Yb is short in the false-twisting device 15. It is therefore possible to twist a large number of yarns Y in a small space.
  • the position where the first yarn Ya is false-twisted is advantageously close to the position where the second yarn Yb is false-twisted. This makes it possible to suppress yarn paths of the first yarn Ya and the second yarn Yb from being significantly different (and to suppress inconsistency in yarn quality between the first yarn Ya and the second yarn Yb due to the difference between the yarn paths).
  • the first yarn Ya and the second yarn Yb are reliably cooled by cooling wind. Furthermore, because the first cooling space Sa and the second cooling space Sb are formed in the same cooling unit 31A, the distance between the first yarn Ya and the second yarn Yb is advantageously short in the cooler 14. It is therefore possible to cool a large number of yarns Y in a small space. Furthermore, because the distance between the first yarn Ya and the second yarn Yb is short as described above, it is possible to suppress the yarn paths of the first yarn Ya and the second yarn Yb from being significantly different (and to suppress the above-described inconsistency in yarn quality due to the difference between the yarn paths).
  • the first cooling space Sa and the second cooling space Sb are provided to be side by side in the base longitudinal direction. It is therefore possible to maintain the first yarn Ya and the second yarn Yb to be side by side in the base longitudinal direction when the first yarn Ya and the second yarn Yb are sent from the cooler 14 to the false-twisting device 15. This makes it possible to further suppress the yarn paths of the first yarn Ya and the second yarn Yb from being different as compared to a case where, for example, the first cooling space Sa and the second cooling space Sb are aligned in a direction different from the base longitudinal direction. Therefore, the difference in quality can be effectively suppressed between the first yarn Ya and the second yarn Yb.
  • WC2 is equal to WC1 (i.e., WC2 is small).
  • WC2 is small.
  • the bending of the first yarn Ya and the second yarn Yb is suppressed when the first yarn Ya and the second yarn Yb are supplied from the cooler 14 to the false-twisting device 15. It is therefore possible to avoid the deterioration in yarn quality.
  • the yarn threading can be done while maintaining both of the first yarn Ya and the second yarn Yb to be substantially linear. In other words, it is scarcely necessary to bend the first yarn Ya and the second yarn Yb in the yarn threading to the cooling unit 31A. It is therefore easy to simultaneously thread the first yarn Ya and the second yarn Yb to the cooling unit 31A.
  • first cooling space Sa and the second cooling space Sb are separated by the partition member 53. It is therefore possible to reliably avoid entanglement of the first yarn Ya and the second yarn Yb for some reason, as compared to an arrangement in which the partition member 53 is not provided and the first cooling space Sa and the second cooling space Sb are not separated.
  • each of the first cooling space Sa and the second cooling space Sb is connected to the intake space Ss extending in the base longitudinal direction (i.e., the spaces are connected in a parallel manner). It is therefore possible to substantially uniformly supply the cooling wind to the first cooling space Sa and the second cooling space Sb by a simple structure.
  • the first cooling space Sa is formed by the wall surface 74 of the movable wall plate 52 and the first partition surface 90a of the first partition portion 88a
  • the second cooling space Sb is formed by the wall surface 64 of the fixed wall plate 51 and the second partition surface 90b of the second partition portion 88b. In this way, the first cooling space Sa and the second cooling space Sb can be formed by simple structures.
  • first partition surface 90a is provided to face the wall surface 74 in the base longitudinal direction and the second partition surface 90b is provided to face the wall surface 64 in the base longitudinal direction.
  • This arrangement makes it possible to narrow the first entrance 95a and the second entrance 95b. It is therefore possible to prevent the first yarn Ya from dropping off from the first cooling space Sa and prevent the second yarn Yb from dropping off from the second cooling space Sb.
  • the cooling unit 31A includes the first yarn guide 96a and the second yarn guide 96b.
  • the first yarn Ya is guided to the downstream side in the yarn running direction by the first yarn guide 96a
  • the second yarn Yb is guided to the downstream side in the yarn running direction by the second yarn guide 96b.
  • the cooling unit 31A is not arranged so that the yarn Y is intentionally made in contact with the partitioning surface and the wall surface. It is therefore possible to suppress the yarn Y from rolling along the wall surface or the partitioning surface when the yarn Y is twisted by the false-twisting device 15. As a result, the drop-off of the yarn Y from the cooling space S is suppressed.
  • the fixed wall plate 51 and the movable wall plate 52 support the partition member 53. It is therefore possible to properly position the partition member 53 even when the partition member 53 cannot be attached to the intake duct 32.
  • the partition member 53 is supported at both ends. It is therefore possible to stably support the partition member 53.
  • the partition member 53 is attachable to and detachable from (i.e., movable relative to) the fixed wall plate 51 and the movable wall plate 52.
  • a wide space used for cleaning the fixed wall plate 51, the movable wall plate 52, and the partition member 53 is secured.
  • the work efficiency of operations such as cleaning is therefore improved.
  • the partition member 53 can be completely detached from the cooling unit 31A, the work efficiency of operations such as cleaning is significantly improved.
  • the fixed wall plate 51 is positionally fixed relative to the intake duct 32, and the movable wall plate 52 and the partition member 53 are movable relative to the fixed wall plate 51. It is therefore possible to provide the cooling unit 31B to be line-symmetrical with the cooling unit 31A about the linear line L. Even though this cooling unit 31B is provided, two members (fixed wall plates 51 and 56) neighboring each other do not move. On this account, interference between the members can be avoided when the members are moved for cleaning.
  • the first yarn Ya can be moved along the first yarn insertion guiding portion 89a and the second yarn Yb can be moved along the second yarn insertion guiding portion 89b. This improves the success rate of the yarn threading.
  • the yarn is threaded to the cooler 14 and the first heater 13 by using an apparatus (not illustrated) for moving the yarn Y upward.
  • an apparatus not illustrated for moving the yarn Y upward.
  • the improvement in the success rate of the yarn threading by the first yarn insertion guiding portion 89a and the second yarn insertion guiding portion 89b is particularly effective.
  • the partition member 53A is a member extending at least in the orthogonal direction.
  • the partition member 53A is substantially U-shaped in a cross section (see FIG. 12 ) when viewed in the same direction as FIG. 9 .
  • the partition member 53A includes a partition portion 88c, a bottom portion 99, a partition portion 88d, a yarn insertion guide portion 89c, and a yarn insertion guide portion 89d.
  • the partition portion 88c is a member extending in the height direction.
  • the partition portion 88c includes a partition surface 90c that is provided to oppose the first partition surface 90a in the base longitudinal direction. Between the first partition surface 90a and the partition surface 90c, the above-described first cooling space Sa is formed.
  • a through hole 94c that is substantially identical in shape and size with each of the through holes 94a and 94b is formed.
  • the bottom portion 99 is connected to the partition portion 88c and in contact with the wall member 33.
  • the partition portion 88d is connected to the bottom portion 99 and extends in the height direction.
  • the partition portion 88d includes a partition surface 90d that is provided to oppose the wall surface 74 of the movable wall plate 52 in the base longitudinal direction. Between the wall surface 74 and the partition surface 90d, a cooling space Sd is formed to cool a yarn Yd that is different from the first yarn Ya and the second yarn Yb.
  • a through hole 94d that is substantially identical in shape and size with the through hole 94c is formed.
  • the yarn insertion guide portion 89c is connected to the partition portion 88c and extends away from the bottom portion 99 in the height direction.
  • the yarn insertion guide portion 89d is connected to the partition portion 88d and extends away from the bottom portion 99 in the height direction.
  • an intake slit 34d is formed in the wall member 33 to connect the intake space Ss with the cooling space Sd.
  • a connection member 87A having the same structure as the connection member 87 is fixed to the movable wall plate 52.
  • a spacer 92d determining the distance between the wall surface 74 and the partition surface 90d is provided between the wall surface 74 and the partition surface 90d in the base longitudinal direction.
  • a yarn guide 96d having the same structure as the second yarn guide 96b is attached to the connection member 87A.
  • a positioning pin 97d having the same structure as the positioning pin 97b is attached to the connection member 87A.
  • a cooling unit 31M2 configured to cool four yarns Y running side by side in the base longitudinal direction may be provided.
  • the cooling unit 31M2 for example, two partition members 53 may be provided, with the partition member 53A being provided therebetween in the base longitudinal direction.
  • a cooling space Se is formed to cool a yarn Ye different from the first yarn Ya and the second yarn Yb.
  • an intake slit 34e is formed in the wall member 33 to connect the intake space Ss with the cooling space Se.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP22174263.8A 2021-06-10 2022-05-19 Machine de texturation de faux fils tordus Pending EP4108817A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021097084 2021-06-10

Publications (1)

Publication Number Publication Date
EP4108817A1 true EP4108817A1 (fr) 2022-12-28

Family

ID=81749392

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22174263.8A Pending EP4108817A1 (fr) 2021-06-10 2022-05-19 Machine de texturation de faux fils tordus

Country Status (4)

Country Link
EP (1) EP4108817A1 (fr)
JP (1) JP2022189739A (fr)
CN (1) CN115467064A (fr)
TW (1) TW202248483A (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11107084A (ja) 1997-10-01 1999-04-20 Toray Eng Co Ltd 仮撚加工機
JP2007297764A (ja) * 2006-04-05 2007-11-15 Tmt Machinery Inc ニップ式仮撚装置
JP4462751B2 (ja) 2000-11-22 2010-05-12 東レエンジニアリング株式会社 仮撚機
CN105401280A (zh) * 2014-09-04 2016-03-16 日本Tmt机械株式会社 假捻加工机
JP2016145429A (ja) * 2015-02-06 2016-08-12 Ｔｍｔマシナリー株式会社 合糸仮撚加工機
JP2018127731A (ja) 2017-02-08 2018-08-16 Ｔｍｔマシナリー株式会社 仮撚加工機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11107084A (ja) 1997-10-01 1999-04-20 Toray Eng Co Ltd 仮撚加工機
JP4462751B2 (ja) 2000-11-22 2010-05-12 東レエンジニアリング株式会社 仮撚機
JP2007297764A (ja) * 2006-04-05 2007-11-15 Tmt Machinery Inc ニップ式仮撚装置
CN105401280A (zh) * 2014-09-04 2016-03-16 日本Tmt机械株式会社 假捻加工机
JP2016145429A (ja) * 2015-02-06 2016-08-12 Ｔｍｔマシナリー株式会社 合糸仮撚加工機
JP2018127731A (ja) 2017-02-08 2018-08-16 Ｔｍｔマシナリー株式会社 仮撚加工機

Also Published As

Publication number Publication date
CN115467064A (zh) 2022-12-13
TW202248483A (zh) 2022-12-16
JP2022189739A (ja) 2022-12-22

Similar Documents

Publication Publication Date Title
JP2011047074A (ja) 仮撚加工機
JP2012097369A (ja) 仮撚加工機
JP6457342B2 (ja) 仮撚加工機、及び、仮撚加工機の糸掛け方法
EP2674379B9 (fr) Dispositif d'enroulement de fil et procédé de production des bobines
EP3360991B1 (fr) Machine d'étirage-texturation
JP5453004B2 (ja) 仮撚り繊維機械
JP4060508B2 (ja) 延伸仮撚加工機
EP4108817A1 (fr) Machine de texturation de faux fils tordus
US6481072B1 (en) Apparatus for guiding and texturizing yarn and associated methods
JP4422615B2 (ja) 仮撚りテクスチャード加工機
US8468791B2 (en) Texturing machine
JP2004530806A (ja) 仮よりテクスチャード機械
JP2002161446A (ja) 仮撚機
JP7319090B2 (ja) 仮撚加工機
EP4086212B1 (fr) Élément de connexion et procédé d'enfilage de fil
JP2004530811A (ja) 仮よりテクスチャード機械
CN111996623B (zh) 假捻加工机
EP4197951A1 (fr) Dispositif de libération de noeud de paquet de fil, dispositif de traitement de jonction de fil et dispositif d'alimentation en fil
EP4242154A1 (fr) Dispositif d'enroulement et système d'enroulement
EP4345041A1 (fr) Dispositif et procédé de jonction de fil
EP4119707A2 (fr) Refroidisseur et processeur de fils
JP2003089939A (ja) 仮撚加工機
CN118109935A (zh) 丝线加热装置以及假捻加工机
CN115467038A (zh) 纺丝牵引装置
CN116905139A (zh) 加热装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230426

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230614

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR