EP4474542B1 - Maschine zum strecktexturieren und garneinfädelverfahren - Google Patents

Maschine zum strecktexturieren und garneinfädelverfahren

Info

Publication number
EP4474542B1
EP4474542B1 EP24174806.0A EP24174806A EP4474542B1 EP 4474542 B1 EP4474542 B1 EP 4474542B1 EP 24174806 A EP24174806 A EP 24174806A EP 4474542 B1 EP4474542 B1 EP 4474542B1
Authority
EP
European Patent Office
Prior art keywords
yarn
rotation speed
unit
twisting
twisting unit
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.)
Active
Application number
EP24174806.0A
Other languages
English (en)
French (fr)
Other versions
EP4474542A1 (de
Inventor
Ryosuke SAKUHANA
Yoshimitsu Demizu
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 EP4474542A1 publication Critical patent/EP4474542A1/de
Application granted granted Critical
Publication of EP4474542B1 publication Critical patent/EP4474542B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • D02G1/0206—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
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/18—Supports for supply packages
    • 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
    • D02G1/0273—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 threading up and starting the false-twisting machine
    • 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
    • D02G1/082—Rollers or other friction causing elements with the periphery of at least one disc
    • 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
    • D02G1/087—Rollers or other friction causing elements between the flanks of rotating discs

Definitions

  • the present invention relates to a draw texturing machine that has a disc-type twisting unit in which a plurality of discs are arranged, and to a yarn threading method for the draw texturing machine.
  • a draw texturing machine having a configuration in which a yarn is false-twisted and wound by a winding unit is known.
  • Such a draw texturing machine has a configuration in which a plurality of twisting units for applying twists to a running yarn are arranged in a predetermined direction.
  • the twisting unit for example, a fixed disc-type twisting unit described in JP 2001-303373 A (triaxial friction false-twisting device in JP 2001-303373 A ) is often used.
  • the disc-type twisting unit is a twisting unit that includes a plurality of discs (friction discs in JP 2001-303373 A ) arranged in a spiral shape and that is configured to apply twists to a running yarn while making contact with the circumferential surface of each rotating disc.
  • the yarn threading to the disc-type twisting unit as described above is usually carried out in a state where the disc is rotating. Specifically, for example, an operator operates a holding unit holding the yarn to pass the yarn between the plurality of rotating discs, whereby the yarn threading to the disc-type twisting unit is carried out.
  • EP 3 889 328 A1 is related to the preamble of claim 1, and EP 1 092 795 B1 discloses a related yarn threading method for an automatic winder.
  • an opening and closing twisting unit in which a space between the plurality of discs is opened at the time of yarn threading so that the yarn can be easily passed between the plurality of discs.
  • an opening and closing twisting unit it is necessary to secure a space for moving the disc, which leads to an increase in size of the draw texturing machine and a decrease in production efficiency for the site.
  • An object of the present invention is to easily carry out yarn threading to a disc-type twisting unit while suppressing an increase in size of a draw texturing machine.
  • a draw texturing machine includes a plurality of spindles each including a twisting unit, a first yarn feed roller that is arranged on an upstream side of the twisting unit in a yarn running direction in which a yarn runs, a second yarn feed roller that is arranged on a downstream side of the twisting unit in the yarn running direction; a plurality of twisting unit drive mechanisms that are individually provided for the twisting units of the plurality of spindles; a first yarn feed roller drive mechanism that is provided in common for the first yarn feed rollers of the plurality of spindles and rotationally drives the plurality of first yarn feed rollers; a second yarn feed roller drive mechanism that is provided in common for the second yarn feed rollers of the plurality of spindles and rotationally drives the plurality of second yarn feed rollers; a control unit; and a plurality of switching units that are individually provided for the twisting units of the plurality of spindles, in which the twisting unit has a plurality of disc units each including a plurality of discs
  • the following advantages are obtained in a manner that the operator manually operates the switching unit to switch the rotation speed of the rotation shaft of each disc unit of the twisting unit as the yarn threading target among the twisting units of the plurality of spindles from the first rotation speed, which is the rotation speed at the time of producing the yarn, to the second rotation speed, which is the rotation speed slower than the first rotation speed, and then carries out the yarn threading. That is, since the rotation speed of the rotation shaft is slower as compared with a case where yarn threading is carried out when the rotation shaft is at the first rotation speed at the time of producing the yarn, the tension of the yarn can be suppressed from strongly fluctuating due to the contact of the yarn with the rotating disc along with the rotation of the rotation shaft.
  • the tension of the yarn can be suppressed from strongly fluctuating as compared with a case where the yarn threading is carried out when the rotation shaft is at the first rotation speed.
  • the yarn threading can be easily carried out by passing the yarn between the plurality of disc units while avoiding the contact between the holding unit and the disc.
  • the rotation speed of the rotation shaft of the twisting unit other than the yarn threading target can be maintained at the first rotation speed, a decrease in the production efficiency of the yarn as a whole of the draw texturing machine can be suppressed.
  • the yarn can be passed between the plurality of discs without opening a space between the plurality of discs, it is not necessary to secure a space for moving the discs as in the opening and closing twisting unit. Therefore, as compared with the case of using the opening and closing twisting unit, the draw texturing machine can be downsized, and the production efficiency for the site is increased.
  • the yarn threading can be easily carried out by carrying out the yarn threading in a state where the rotation shaft rotates at the second rotation speed that is a low speed, or in a state where the rotation shaft is decelerating or accelerating toward the second rotation speed, so that the advantage of using the twisting unit of a type in which the space between the discs is not opened can be fully utilized.
  • each twisting unit drive mechanism, the first yarn feed roller drive mechanism, and the second yarn feed roller drive mechanism are independently controlled. Therefore, even in a case where the rotation speed of each rotation shaft of the twisting unit as the yarn threading target is switched to the second rotation speed, the rotation speeds of the plurality of first yarn feed rollers and the plurality of second yarn feed rollers are not reduced. Therefore, a decrease in the production efficiency of the entire draw texturing machine at the time of yarn threading can be suppressed.
  • the draw texturing machine of the present invention includes a plurality of notification units individually provided for the twisting units of the plurality of spindles, in which each notification unit notifies that the rotation speed of each rotation shaft driven by the corresponding twisting unit drive mechanism has reached the second rotation speed.
  • the operator can ascertain whether or not the rotation speed of the rotation shaft has reached the second rotation speed for each twisting unit. Therefore, the operator can avoid erroneously carrying out the yarn threading when the rotation shaft of the twisting unit as the yarn threading target is at the first rotation speed.
  • the notification unit notifies that the rotation speed of each rotation shaft has reached the second rotation speed by a turning-on or blinking pattern of a lamp.
  • the operator can visually and quickly determine the rotation speed of the rotation shaft for each twisting unit.
  • the switching signal includes a signal for switching each rotation shaft driven by the corresponding twisting unit drive mechanism to a stop state in which rotation is stopped.
  • the rotation of the rotation shaft in a case where the yarn is entangled in the disc, the rotation of the rotation shaft can be individually stopped for each twisting unit. Therefore, in the twisting unit in which the yarn is not entangled in the disc, the rotation speed of the rotation shaft can be maintained at the first rotation speed, and thus a decrease in the production efficiency of the yarn as a whole of the draw texturing machine can be suppressed.
  • a yarn threading method is a yarn threading method of threading a yarn to a draw texturing machine that includes a plurality of spindles each including a twisting unit that has a plurality of disc units each including a plurality of discs and a rotation shaft rotating the plurality of discs, and in which the rotation shaft of each disc unit rotates to apply twists to the yarn running between the plurality of disc units, the draw texturing machine being configured to switch a rotation speed of the rotation shaft of each disc unit of the twisting units of the plurality of spindles at least between a first rotation speed that is a rotation speed at a time of producing the yarn and a second rotation speed that is a rotation speed slower than the first rotation speed, the yarn threading method including a switching process of switching the rotation speed of each rotation shaft to the second rotation speed for the twisting unit as a yarn threading target among the twisting units of the plurality of spindles; and a twisting unit yarn threading process of threading the yarn to the twisting unit as
  • the following advantages are obtained by switching the rotation speed of the rotation shaft of each disc unit of the twisting unit as the yarn threading target among the twisting units of the plurality of spindles from the first rotation speed, which is the rotation speed at the time of producing the yarn, to the second rotation speed, which is the rotation speed slower than the first rotation speed, and then performing the yarn threading. That is, since the rotation speed of the rotation shaft is slower as compared with a case where yarn threading is carried out when the rotation shaft is at the first rotation speed at the time of producing the yarn, the tension of the yarn can be suppressed from strongly fluctuating due to the contact of the yarn with the rotating disc along with the rotation of the rotation shaft.
  • the tension of the yarn can be suppressed from strongly fluctuating as compared with a case where the yarn threading is carried out when the rotation shaft is at the first rotation speed.
  • the yarn threading can be easily carried out by passing the yarn between the plurality of disc units while avoiding the contact between the holding unit and the disc.
  • the rotation speed of the rotation shaft of the twisting unit other than the yarn threading target can be maintained at the first rotation speed, a decrease in the production efficiency of the yarn as a whole of the draw texturing machine can be suppressed.
  • the yarn can be passed between the plurality of discs without opening a space between the plurality of discs, it is not necessary to secure a space for moving the discs as in the opening and closing twisting unit. Therefore, as compared with the case of using the opening and closing twisting unit, the draw texturing machine can be downsized, and the production efficiency for the site is increased.
  • the yarn threading can be easily carried out by carrying out the yarn threading in a state where the rotation shaft rotates at the second rotation speed that is a low speed, or in a state where the rotation shaft is decelerating or accelerating toward the second rotation speed, so that the advantage of using the twisting unit of a type in which the space between the discs is not opened can be fully utilized.
  • the twisting unit yarn threading process is carried out after the rotation speed of each rotation shaft reaches the second rotation speed.
  • the twisting unit yarn threading process is carried out in a state where the rotation speed of each rotation shaft is constant at the second rotation speed.
  • the yarn tension generated due to the contact between the yarn and the circumferential surface of the disc is stabilized, so that the holding unit can be avoided from becoming difficult to operate due to a large fluctuation in the yarn tension, and the yarn threading becomes easy.
  • each spindle arranged in the draw texturing machine includes a second yarn feed roller arranged on a downstream side of the twisting unit in a yarn running direction in which the yarn runs, the yarn threading method further includes a roller yarn threading process of threading the yarn to the rotating second yarn feed roller arranged on the downstream side of the twisting unit as the yarn threading target, and the twisting unit yarn threading process is carried out after the roller yarn threading process.
  • the yarn is pulled by the second yarn feed roller, and the yarn is in a state of being stretched in the yarn running direction.
  • the yarn in the stretched state is less likely to swing as compared with the yarn in the relaxed state. Therefore, the yarn threading to the twisting unit is further facilitated.
  • the roller yarn threading process is performed before the rotation speed of each rotation shaft reaches the second rotation speed after the switching process is carried out.
  • the operation time can be shortened by starting the roller yarn threading process until the rotation speed of each rotation shaft reaches the second rotation speed.
  • a direction perpendicular to the paper surface of FIG. 1 is defined as a base longitudinal direction, and a left-right direction of the paper surface is defined as a base width direction.
  • a direction orthogonal to both the base longitudinal direction and the base width direction is defined as an up-down direction (vertical direction) in which gravity acts.
  • FIG. 1 is a profile of a draw texturing machine 1 according to the present embodiment.
  • FIG. 2 is a schematic view of the draw texturing machine 1 developed along a path of a yarn Y (yarn path).
  • FIG. 3 is a view taken in a direction of arrow III in FIG. 1 .
  • the draw texturing machine 1 is configured to be able to false-twist the yarn Y made of synthetic fiber such as nylon (polyamide fiber), for example.
  • the draw texturing machine 1 includes a yarn supplying unit 2 for supplying the yarn Y, a processing unit 3 that false-twists the yarn Y supplied from the yarn supplying unit 2, and a winding unit 4 that winds the yarn Y processed by the processing unit 3 around a winding bobbin Bw.
  • a plurality of constituent elements (to be described later) of the yarn supplying unit 2, the processing unit 3, and the winding unit 4 are arranged in the base longitudinal direction orthogonal to a running surface (paper surface of FIG. 1 ) of the yarn on which a yarn path from the yarn supplying unit 2 to the winding unit 4 through the processing unit 3 is arranged (refer to FIG. 2 ).
  • the yarn supplying unit 2 includes a creel stand 7 that holds a plurality of yarn supply packages Ps, and supplies the yarns Y to the processing unit 3.
  • the processing unit 3 has a configuration in which a first feed roller 11 (first yarn feed roller of the present invention), a twist-stopping guide 12, a first heater 13, a cooler 14, a twisting unit 15, a second feed roller 16 (second yarn feed roller of the present invention), an interlacing device 17, a third feed roller 18, a second heater 19, and a fourth feed roller 20 are arranged in this order from the upstream side in a yarn running direction in which the yarn Y runs.
  • the winding unit 4 winds the yarn Y false-twisted by the processing unit 3 around the winding bobbin Bw using a winding device 21 to form a wound package Pw.
  • the draw texturing machine 1 has a unit called a span.
  • each unit is arranged so that the yarns Y running in a state of being arranged in the base longitudinal direction can be simultaneously false-twisted.
  • each spindle 25 includes one yarn supply package Ps, a single first feed roller 11, one twist-stopping guide 12, a single first heater 13, one cooler 14, one twisting unit 15, a single second feed roller 16, one interlacing device 17, a single third feed roller 18, a single second heater 19, a single fourth feed roller 20, and one winding device 21 (refer to FIG. 2 ).
  • the single first heater 13 is disposed across two spindles 25, and the single second heater 19 is disposed across a plurality of spindles 25 (for example, four spindles 25).
  • the present invention is not limited thereto.
  • the yarn Y fed from the yarn supply package Ps is wound by the winding device 21 to form the wound package Pw.
  • the first feed roller 11 is configured to unwind the yarn Y from the yarn supply package Ps attached to the yarn supplying unit 2 and to feed the yarn Y to the first heater 13.
  • the rotation of the plurality of first feed rollers 11 is driven by a single first roller drive motor 91 (first yarn feed roller drive mechanism of present invention, refer to FIG. 7 ) provided in common for the first feed rollers 11 of all the spindles 25 arranged in the draw texturing machine 1.
  • the twist-stopping guide 12 is for preventing the twist applied to the yarn Y by the twisting unit 15 to be described later from being propagated to the upstream side of the twist-stopping guide 12 in the yarn running direction.
  • the first heater 13 is for heating the yarn Y fed from the first feed roller 11 to a predetermined processing temperature (refer to FIG. 1 ).
  • the cooler 14 is for cooling the yarn Y heated by the first heater 13.
  • the twisting unit 15 is a type of so-called disc friction type twisting unit, and is configured to apply twists to the yarn Y. More details of the twisting unit 15 will be described later.
  • the second feed roller 16 is a roller that feeds the yarn Y twisted by the twisting unit 15 toward the interlacing device 17.
  • the rotation of the plurality of second feed rollers 16 is driven by a single second roller drive motor 92 (second yarn feed roller drive mechanism of present invention, refer to FIG. 7 ) provided in common for the second feed rollers 16 of all the spindles 25 arranged in the draw texturing machine 1.
  • the interlacing device 17 is a system that applies interlacement by injecting air to the yarn Y.
  • the third feed roller 18 is a roller that feeds the yarn Y interlaced by the interlacing device 17 toward the second heater 19.
  • the third feed roller 18 is driven by a motor (not illustrated).
  • the second heater 19 is a system for heating the yarn Y fed from the third feed roller 18.
  • the fourth feed roller 20 is for feeding the yarn Y heated by the second heater 19 to the winding device 21.
  • the fourth feed roller 20 is driven by a motor (not illustrated) .
  • twists are applied by the twisting unit 15 to the yarn Y drawn between the first feed roller 11 and the second feed roller 16.
  • the twists formed by the twisting unit 15 propagate up to the twist-stopping guide 12, but do not propagate to the upstream side of the twist-stopping guide 12 in the yarn running direction.
  • the yarn Y twisted while being drawn is heated and thermally fixed by the first heater 13, and then cooled by the cooler 14.
  • the yarn Y is untwisted on the downstream side of the twisting unit 15, but a state in which each filament is false-twisted in a wave shape is maintained by the heat fixation.
  • the yarn Y false-twisted by the twisting unit 15 is interlaced by the interlacing device 17 while being relaxed between the second feed roller 16 and the third feed roller 18, and is guided to the downstream side in the yarn running direction. Furthermore, the yarn Y is thermally fixed by the second heater 19 while being relaxed between the third feed roller 18 and the fourth feed roller 20. Finally, the yarn Y fed from the fourth feed roller 20 is wound by the winding device 21 to form the wound package Pw.
  • the winding unit 4 includes a plurality of winding devices 21 each winding the yarn Y around the winding bobbin Bw.
  • the yarn Y fed from the above-described fourth feed roller 20 is wound around the winding bobbin Bw by each winding device 21 to form the wound package Pw.
  • FIG. 4 is a perspective view of the twisting unit 15.
  • FIG. 5 is a view of the twisting unit 15 as viewed from a direction orthogonal to both the base longitudinal direction and an axial direction of a rotation shaft 53 to be described later (hereinafter, simply referred to as axial direction).
  • FIG. 6 is a view of the twisting unit 15 as viewed from the axial direction.
  • the twisting unit 15 is configured to apply twists to the yarn Y.
  • a plurality of the twisting units 15 are arranged in the base longitudinal direction (refer to FIG. 2 ).
  • each twisting unit 15 includes a plurality of disc units 51 (three in the present embodiment), a supporting table 54, and a twisting unit drive motor 56 (twisting unit drive mechanism of the present invention).
  • Each disc unit 51 includes a plurality of discs 55 (three in the present embodiment) and the rotation shaft 53 that rotates the plurality of discs 55.
  • the rotation shaft 53 of each disc unit 51 is a shaft member extending in the axial direction substantially orthogonal to the base longitudinal direction.
  • the axial direction may not be necessarily substantially orthogonal to the base longitudinal direction.
  • the three rotation shafts 53 are arranged such that the axial centers form vertices of a virtual equilateral triangle T when viewed from the axial direction.
  • the plurality of discs 55 of the disc unit 51 are members for applying twists to the yarn Y when the circumferential surface makes contact with the yarn Y. As shown in FIGS. 4 to 6 , the plurality of discs 55 are attached to each rotation shaft 53. In the present embodiment, three discs 55 are attached to each rotation shaft 53 (refer to FIG. 4 and the like), but the number of discs 55 attached to each rotation shaft 53 is not limited thereto. In the present embodiment, each rotation shaft 53 and the plurality of discs 55 attached to the rotation shaft 53 are fixedly arranged so as not to move from the position of FIG. 4 .
  • the twisting unit 15 can apply twists to the yarn Y running between the plurality of disc units 51 as the rotation shaft 53 of each disc unit 51 rotates.
  • the plurality of discs 55 attached to the respective rotation shafts 53 are arranged to draw a spiral extending in the axial direction.
  • the discs 55 attached to the respective rotation shafts 53 are arranged to draw a spiral in a clockwise direction.
  • the plurality of discs 55 can apply the S-twists to the yarn Y.
  • the discs 55 attached to the respective rotation shafts 53 may be arranged to draw a spiral in a counterclockwise direction. In this case, the plurality of discs 55 can apply the Z-twists to the yarn Y.
  • a portion of the plurality of discs 55 to be in contact with the yarn Y is formed of, for example, polyurethane.
  • the portion of the plurality of discs 55 to be in contact with the yarn Y may be formed of, for example, ceramic.
  • a portion of some discs 55 to be in contact with the yarn Y may be formed of polyurethane, and a portion of the other discs 55 in contact with the yarn Y may be formed of ceramic.
  • the supporting table 54 is a table that rotatably supports the rotation shaft 53 via a bearing (not illustrated).
  • the supporting table 54 supports three rotation shafts 53 in a cantilever manner.
  • the upper side of the paper surface in FIGS. 4 and 5 is the leading end side in the axial direction
  • the lower side of the paper surface is the base end side in the axial direction.
  • the yarn Y runs from the leading end side to the base end side in the axial direction of the rotation shaft 53. That is, the leading end side in the axial direction is the upstream side in the yarn running direction.
  • the base end side in the axial direction is the downstream side in the yarn running direction.
  • the supporting table 54 supports the base end side of each rotation shaft 53 in the axial direction.
  • Each rotation shaft 53 is attached to the supporting table 54 so as not to move from the position of FIG. 4 .
  • the twisting unit drive motor 56 is for rotating the rotation shaft 53 of each disc unit 51 of the corresponding twisting unit 15.
  • the twisting unit drive motor 56 is a mechanism that rotationally drives three rotation shafts 53 in the same direction.
  • the power of the twisting unit drive motor 56 is transmitted to each rotation shaft 53 via a belt (not illustrated).
  • the twisting unit drive motor 56 rotationally drives each rotation shaft 53 clockwise when viewed from the leading end side in the axial direction (refer to the arrow in FIG. 6 ).
  • a plurality of switching buttons 95 are individually provided for the twisting unit 15 of the plurality of spindles 25.
  • one switching button 95 is provided for one twisting unit 15 (refer to FIG. 7 ).
  • the switching button 95 generates a switching signal for switching the rotation speed of each rotation shaft 53 driven by the corresponding twisting unit drive motor 56 by a manual operation between a first rotation speed, which is a rotation speed at the time of producing the yarn Y, a second rotation speed, which is a rotation speed slower than the first rotation speed, and a stop state in which the rotation is stopped. Then, the switching button 95 transmits the generated switching signal to a control unit 60 (described later).
  • the time of producing the yarn Y refers to when the yarn Y is wound around the winding bobbin Bw by the winding device 21 of the winding unit 4 to form the wound package Pw.
  • a switching signal for switching the rotation speed of the rotation shaft 53 rotationally driven by the twisting unit drive motor 56 is generated.
  • the control unit 60 receives the switching signal transmitted from the switching button 95 to control the twisting unit drive motor 56 such that the rotation speed of each rotation shaft 53 is one of the first rotation speed, the second rotation speed, and the stop state.
  • a switching signal for switching the rotation speed of each rotation shaft 53 to the first rotation speed is generated when the operator presses the switching button 95 once
  • a switching signal for switching the rotation speed of each rotation shaft 53 to the second rotation speed is generated when the operator presses the switching button 95 once again
  • a switching signal for switching the rotation speed of each rotation shaft 53 to the stop state is generated when the operator presses and holds the switching button 95 for a predetermined period of time or longer.
  • the switching button 95 incorporates a monochrome lamp.
  • the switching button 95 can notify the operator that the rotation speed of each rotation shaft 53 of the corresponding twisting unit 15 has reached the second rotation speed according to the lighting pattern of the lamp. That is, the switching button 95 corresponds to a notification unit of the present invention in addition to the switching unit of the present invention.
  • the switching button 95 indicates any of turning on, blinking, and turning off. For example, when the rotation speed of the rotation shaft 53 reaches the second rotation speed, the switching button 95 blinks. Further, when the rotation speed of the rotation shaft 53 reaches the first rotation speed, the switching button 95 is continuously turned on. When the rotation shaft 53 is in the stop state, the switching button 95 is turned off.
  • the switching button 95 is turned on, blinks, or is turned off corresponding to the state immediately before the rotation shaft 53. For example, in a case where the state immediately before the rotation shaft 53 rotating at a rotation speed other than the first rotation speed and the second rotation speed is the second rotation speed, the switching button 95 blinks corresponding to the second rotation speed.
  • the draw texturing machine 1 includes the control unit 60.
  • the control unit 60 controls the plurality of twisting unit drive motors 56, the first roller drive motor 91, and the second roller drive motor 92.
  • the control unit 60 is electrically connected to the plurality of twisting unit drive motors 56, the first roller drive motor 91, the second roller drive motor 92, and the switching button 95.
  • the single first roller drive motor 91 is provided in common for the first feed rollers 11 of the plurality of spindles 25.
  • the single first roller drive motor 91 is connected to the plurality of first feed rollers 11.
  • the single second roller drive motor 92 is provided in common for the second feed rollers 16 of the plurality of spindles 25.
  • the single second roller drive motor 92 is connected to the plurality of second feed rollers 16.
  • the first roller drive motor 91 and the second roller drive motor 92 are arranged, for example, at the end portion of the draw texturing machine 1 in the base longitudinal direction. In FIG. 7 , only a part of the plurality of first feed rollers 11 is illustrated, and the other description is omitted. The same applies to the second feed rollers 16.
  • the twisting unit drive motor 56 is connected to the rotation shaft 53.
  • the control unit 60 controls the twisting unit drive motor 56 corresponding to the switching button 95 to drive the rotation of the rotation shaft 53.
  • FIG. 7 only a part of the plurality of twisting units 15 is illustrated, and the other description is omitted.
  • the twisting unit drive motor 56 is incorporated in the twisting unit 15, but the twisting unit drive motor 56 may be provided outside the twisting unit 15.
  • one control unit 60 is provided in common for the plurality of twisting units 15, but a plurality of control units 60 may be individually provided for the plurality of twisting units 15.
  • each twisting unit drive motor 56, the first roller drive motor 91, and the second roller drive motor 92 are independently controlled by the control unit 60.
  • the rotational driving of the plurality of rotation shafts 53 by the twisting unit drive motor 56, the driving of the plurality of first feed rollers 11 by the first roller drive motor 91, and the driving of the plurality of second feed rollers 16 by the second roller drive motor 92 are independently performed.
  • FIG. 8 is a flowchart illustrating a procedure of yarn threading to the draw texturing machine 1.
  • FIG. 9A is a graph illustrating a state of fluctuation of the rotation speed of the rotation shaft 53 with advancement of yarn threading and transition of the yarn tension when the yarn threading is carried out at the time of starting the operation of the draw texturing machine 1.
  • FIG. 9B is a graph illustrating the fluctuation of the rotation speed of the rotation shaft 53 with advancement of yarn threading and the transition of the yarn tension when the yarn threading is carried out in the middle of the winding of the yarn Y by the winding unit 4.
  • the yarn tension is a measured value of the tension of the yarn Y running between the twisting unit 15 and the second feed roller 16.
  • the rotation speed of the rotation shaft 53 in FIG. 9 is the rotation speed of the rotation shaft 53 of three disc units 51 of the twisting unit 15 as a yarn threading target.
  • the rotation speeds of the three rotation shafts 53 provided in one twisting unit 15 are the same.
  • the rotation speed of the rotation shaft 53 is indicated by a solid line, and the yarn tension is indicated by a two-dot chain line.
  • FIGS. 9A and 9B relatively illustrate the rotation speed of the rotation shaft 53 and the yarn tension in each step (refer to FIG.
  • step S1 the operator sucks and holds the yarn Y supplied from the yarn supplying unit 2 using a suction gun (not illustrated) that sucks and holds the yarn Y (step S1).
  • step S1 is performed when the rotation shaft 53 is in the stop state or when the rotation shaft 53 is rotating at the first rotation speed (refer to FIGS. 9A and 9B ).
  • the operator operates the switching button 95 to switch the rotation speeds of the plurality of rotation shafts 53 of the twisting unit 15 as the yarn threading target to the second rotation speed (step S2).
  • Step S2 corresponds to a switching process of the present invention.
  • the plurality of rotation shafts 53 are switched from the stop state to the second rotation speed.
  • the plurality of rotation shafts 53 start to accelerate from the stop state to the second rotation speed (refer to S2a in FIG. 9A ).
  • the rotation speeds of the plurality of rotation shafts 53 are switched from the first rotation speed to the second rotation speed.
  • the plurality of rotation shafts 53 start to decelerate from the first rotation speed to the second rotation speed (refer to S2b in FIG. 9B ).
  • Step S3 corresponds to a roller yarn threading process of the present invention.
  • Step S3 starts until the rotation speeds of the plurality of rotation shafts 53 reach the second rotation speed after step S2 is performed. That is, step S3 is performed while the plurality of rotation shafts 53 are accelerating from the stop state to the second rotation speed or while the plurality of rotation shafts 53 are decelerating from the first rotation speed to the second rotation speed (refer to FIGS. 9A and 9B ).
  • Step S4 corresponds to a twisting unit yarn threading process of the present invention.
  • Step S4 may be performed when the rotation speeds of the plurality of rotation shafts 53 are accelerating toward the second rotation speed, or when the rotation speeds of the plurality of rotation shafts 53 are decelerating from the first rotation speed toward the second rotation speed. However, step S4 is preferably performed after the rotation speeds of the plurality of rotation shafts 53 reach the second rotation speed.
  • step S5 the operator operates the switching button 95 to switch the rotation speeds of the plurality of rotation shafts 53 of the twisting unit 15 as the yarn threading target to the first rotation speed. Specifically, the operator presses the switching button 95 once. As a result, the rotation speeds of the plurality of rotation shafts 53 start to accelerate from the second rotation speed to the first rotation speed.
  • step S6 the operator operates the holding unit 101 holding the yarn Y to thread the yarn Y to the twist-stopping guide 12 (step S6).
  • the yarn is threaded to the first heater 13 and the cooler 14 from when the yarn Y is threaded to the twisting unit 15 to when the yarn Y is threaded to the twist-stopping guide 12, but the description thereof will be omitted in the present embodiment.
  • step S7 the operator operates the holding unit 101 holding the yarn Y to thread the yarn Y to the first feed roller 11 (step S7). Steps S6 and S7 may be performed after the rotation speeds of the plurality of rotation shafts 53 reach the first rotation speed, or may be performed before the rotation speeds of the plurality of rotation shafts 53 reach the first rotation speed.
  • step S7 After step S7 is completed and the rotation speeds of the plurality of rotation shafts 53 reach the first rotation speed, the operator operates the suction gun placed at the predetermined position to thread the yarn Y to each constituent element of the processing unit 3 and the winding unit 4 arranged on the downstream side of the second feed roller 16 (step S8). That is, in step S8, the yarn Y is threaded to the interlacing device 17, the third feed roller 18, the second heater 19, the fourth feed roller 20, the winding device 21 in this order.
  • the plurality of spindles 25 each including the twisting unit 15, the first feed roller 11 arranged on the upstream side of the twisting unit 15 in the yarn running direction, and the second feed roller 16 arranged on the downstream side of the twisting unit 15 in the yarn running direction are arranged.
  • the draw texturing machine 1 includes the plurality of twisting unit drive motors 56 individually provided for the twisting units 15 of the plurality of spindles 25, the first roller drive motor 91 commonly provided for the first feed rollers 11 of the plurality of spindles 25 to rotationally drive the plurality of first feed rollers 11, the second roller drive motor 92 commonly provided for the second feed rollers 16 of the plurality of spindles 25 to rotationally drive the plurality of second feed rollers 16, the control unit 60, and the plurality of switching buttons 95 individually provided for the twisting units 15 of the plurality of spindles 25.
  • the twisting unit 15 includes the plurality of disc units 51 each including the plurality of discs 55 and the rotation shaft 53 that rotates the plurality of discs 55, and can apply twists to the yarn Y running between the plurality of disc units 51 by the rotation of the rotation shaft 53 of each disc unit 51.
  • Each twisting unit drive motor 56 rotates the rotation shaft 53 of each disc unit 51 of the corresponding twisting unit 15.
  • the control unit 60 controls each twisting unit drive motor 56, the first roller drive motor 91, and the second roller drive motor 92.
  • Each switching button 95 generates the switching signal for switching the rotation speed of each rotation shaft 53 driven by the corresponding twisting unit drive motor 56 by the manual operation at least between the first rotation speed, which is the rotation speed at the time of producing the yarn Y, and the second rotation speed, which is the rotation speed slower than the first rotation speed, and transmits the switching signal to the control unit 60.
  • the following advantages are obtained in a manner that the operator manually operates the switching button 95 to switch the rotation speed of the rotation shaft 53 of the disc unit 51 of the twisting unit 15 as the yarn threading target among the twisting units 15 of the plurality of spindles 25 from the first rotation speed, which is the rotation speed at the time of producing the yarn Y, to the second rotation speed, which is the rotation speed slower than the first rotation speed, and then carries out the yarn threading.
  • the tension of the yarn Y can be suppressed from strongly fluctuating as compared with a case where the yarn threading is carried out when the rotation shaft 53 is at the first rotation speed.
  • the yarn threading can be easily carried out by passing the yarn Y between the plurality of disc units 51 while avoiding the contact between the holding unit 101 and the disc 55.
  • the rotation speed of the rotation shaft 53 of the twisting unit 15 other than the yarn threading target can be maintained at the first rotation speed, a decrease in the production efficiency of the yarn Y as a whole of the draw texturing machine 1 can be suppressed.
  • the yarn Y can be passed between the plurality of discs 55 without opening a space between the plurality of discs 55, it is not necessary to secure a space for moving the discs 55 as in the opening and closing twisting unit. Therefore, as compared with the case of using the opening and closing twisting unit, the draw texturing machine 1 can be downsized, and the production efficiency for the site is increased. In general, it is difficult to carry out the yarn threading to the twisting unit 15 without opening a space between the discs 55 as compared with the opening and closing twisting unit.
  • the yarn threading can be easily carried out by carrying out the yarn threading in a state where the rotation shaft 53 rotates at the second rotation speed that is a low speed, or in a state where the rotation shaft 53 is decelerating or accelerating toward the second rotation speed, so that the advantage of using the twisting unit 15 of a type in which the space between the discs 55 is not opened can be fully utilized.
  • each twisting unit drive motor 56, the first roller drive motor 91, and the second roller drive motor 92 are independently controlled.
  • the twisting unit drive motor 56 drives the rotation of the plurality of rotation shafts 53 independently of the drive of the plurality of first feed rollers 11 by the first roller drive motor 91 and the drive of the plurality of second feed rollers 16 by the second roller drive motor 92. Therefore, even in a case where the rotation speed of the rotation shaft 53 of the twisting unit 15 as the yarn threading target is switched to the second rotation speed, the rotation speeds of the plurality of first feed rollers 11 and the plurality of second feed rollers 16 are not reduced. Therefore, a decrease in the production efficiency of the entire draw texturing machine 1 at the time of yarn threading can be suppressed.
  • the draw texturing machine 1 of the present embodiment includes the switching buttons 95 as a plurality of notification units individually provided for the twisting units 15 of the plurality of spindles 25.
  • Each switching button 95 notifies that the rotation speeds of the plurality of rotation shafts 53 of the twisting unit 15 have reached the second rotation speed.
  • the operator can ascertain whether or not the rotation speed of the rotation shaft 53 has reached the second rotation speed for each twisting unit 15. Therefore, the operator can avoid erroneously carrying out the yarn threading when the rotation shaft 53 of the twisting unit 15 as the yarn threading target is at the first rotation speed.
  • the switching button 95 as the notification unit notifies that the rotation speed of each rotation shaft 53 has reached the second rotation speed by the turning-on or blinking pattern of the lamp. According to the present embodiment, the operator can visually and quickly determine the rotation speed of the rotation shaft 53 for each twisting unit 15.
  • the switching buttons 95 are individually provided for the twisting units 15 of the plurality of spindles 25.
  • Each switching button 95 transmits, to the control unit 60, the switching signal for switching rotation speed of each rotation shaft 53 by the corresponding twisting unit drive motor 56.
  • the operator may operate the switching button 95 provided corresponding to the twisting unit drive motor 56. Therefore, a mistake of erroneously changing the rotation speed of the rotation shaft 53 of another twisting unit 15 that is not the yarn threading target can be suppressed.
  • the switching signal includes a signal for switching each rotation shaft 53 driven by the corresponding twisting unit drive motor 56 to the stop state in which the rotation is stopped.
  • the rotation of the rotation shaft 53 can be individually stopped for each twisting unit 15. Therefore, in the twisting unit 15 in which the yarn Y is not entangled in the disc 55, the rotation speed of the rotation shaft 53 can be maintained at the first rotation speed, and thus a decrease in the production efficiency of the yarn Y as a whole of the draw texturing machine 1 can be suppressed.
  • the yarn threading method of the present embodiment is a yarn threading method of threading the yarn Y to the draw texturing machine 1 configured to be able to switch the rotation speed of the rotation shaft 53 of each disc unit 51 of the twisting units 15 of the plurality of spindles 25 at least between the first rotation speed, which is the rotation speed at the time of producing the yarn Y, and the second rotation speed, which is the rotation speed slower than the first rotation speed.
  • Each spindle 25 includes the twisting unit 15 that includes the plurality of disc units 51 each including the plurality of discs 55 and the rotation shaft 53 that rotates the plurality of discs 55, and that can apply twists to the yarn Y running between the plurality of disc units 51 by the rotation of the rotation shaft 53 of each disc unit 51.
  • the yarn threading method includes a switching process and a twisting unit yarn threading process.
  • the switching process is a process of switching the rotation speed of each rotation shaft 53 to the second rotation speed for the twisting unit 15 as the yarn threading target among the twisting units 15 of the plurality of spindles 25.
  • the twisting unit yarn threading process is a process of threading the yarn Y to the twisting unit 15 as the yarn threading target by passing the yarn Y between the plurality of disc units 51 when each rotation shaft 53 is rotating at the second rotation speed, when the rotation speed of each rotation shaft 53 is decreasing its speed from the first rotation speed to the second rotation speed, or when the rotation speed of each rotation shaft 53 is increasing its speed toward the second rotation speed.
  • the following advantages are obtained by switching the rotation speed of the rotation shaft 53 of each disc unit 51 of the twisting unit 15 as the yarn threading target among the twisting units 15 of the plurality of spindles 25 from the first rotation speed, which is the rotation speed at the time of producing the yarn Y, to the second rotation speed, which is the rotation speed slower than the first rotation speed, and then performing the yarn threading. That is, since the rotation speed of the rotation shaft 53 is slower as compared with the case where yarn threading is carried out when the rotation shaft 53 is at the first rotation speed at the time of producing the yarn Y, the tension of the yarn Y can be suppressed from strongly fluctuating due to the contact of the yarn Y with the rotating disc 55 (refer to FIGS. 9A and 9B ).
  • the tension of the yarn Y can be suppressed from strongly fluctuating as compared with a case where the yarn threading is carried out when the rotation shaft 53 is at the first rotation speed.
  • the yarn threading can be easily carried out by passing the yarn Y between the plurality of disc units 51 while avoiding the contact between the holding unit 101 and the disc 55.
  • the rotation speed of the rotation shaft 53 of the twisting unit 15 other than the yarn threading target can be maintained at the first rotation speed, a decrease in the production efficiency of the yarn Y as a whole of the draw texturing machine 1 can be suppressed.
  • the yarn Y can be passed between the plurality of discs 55 without opening a space between the plurality of discs 55, it is not necessary to secure a space for moving the discs 55 as in the opening and closing twisting unit. Therefore, as compared with the case of using the opening and closing twisting unit, the draw texturing machine 1 can be downsized, and the production efficiency for the site is increased. In general, it is difficult to carry out the yarn threading to the twisting unit 15 without opening a space between the discs 55 as compared with the opening and closing twisting unit.
  • the yarn threading can be easily carried out by carrying out the yarn threading in a state where the rotation shaft 53 rotates at the second rotation speed that is a low speed, or in a state where the rotation shaft 53 is decelerating or accelerating toward the second rotation speed, so that the advantage of using the twisting unit 15 of a type in which the space between the discs 55 is not opened can be fully utilized.
  • the yarn threading to the twisting unit 15 is carried out when the disc 55 is rotating.
  • the portion of the circumferential surface of the disc 55 to be in contact with the yarn Y can be changed by carrying out the yarn threading when the disc 55 is rotating. Therefore, local wear of the circumferential surface of the disc 55 can be suppressed. As a result, the fluctuation of the contact state between the yarn Y and the circumferential surface of the disc 55 can be suppressed, and the degradation of the yarn quality can be suppressed.
  • the twisting unit yarn threading process is preferably carried out after the rotation speed of each rotation shaft 53 has reached the second rotation speed.
  • the twisting unit yarn threading process is carried out in a state where the rotation speeds of the plurality of rotation shafts 53 are constant at the second rotation speed.
  • the yarn tension generated due to the contact between the yarn Y and the circumferential surface of the disc 55 is stabilized, so that the holding unit 101 can be avoided from becoming difficult to operate due to a large fluctuation in the yarn tension, and the yarn threading becomes easy.
  • each of the spindles 25 arranged in the draw texturing machine 1 includes the second feed roller 16 arranged on the downstream side of the twisting unit 15 in the yarn running direction, and the roller yarn threading process of threading the yarn Y to the rotating second feed roller 16 arranged on the downstream side of the twisting unit 15 as the yarn threading target is further included.
  • the twisting unit yarn threading process is carried out after the roller yarn threading process.
  • the yarn Y by threading the yarn Y first to the rotating second feed roller 16, the yarn Y is pulled by the second feed roller 16, and the yarn Y is in a state of being stretched in the yarn running direction.
  • the yarn Y in the stretched state is less likely to swing as compared with the yarn in the relaxed state. Therefore, the yarn threading to the twisting unit 15 is further facilitated.
  • the roller yarn threading process is performed before the rotation speed of each rotation shaft 53 reaches the second rotation speed after the switching process is carried out.
  • the operation time can be shortened by starting the roller yarn threading process until the rotation speed of each rotation shaft 53 reaches the second rotation speed.
  • the switching buttons 95 as the switching units of the present invention are individually provided for the twisting unit drive motors 56 of the plurality of spindles 25.
  • Each switching button 95 is configured to transmit the generated predetermined switching signal to the control unit 60.
  • the switching unit of the present invention is not limited to the configuration of the above embodiment.
  • the switching unit may be included in one central operating panel connected to the plurality of twisting unit drive motors 56.
  • the central operating panel has a plurality of switching units individually corresponding to the twisting unit drive motors 56 of the plurality of spindles 25.
  • the switching unit is, for example, a signal input unit such as an icon displayed on the central operating panel, and is a plurality of signal input units individually corresponding to the twisting unit drive motors 56 of the plurality of spindles 25.
  • a switching signal for switching the rotation speed of the rotation shaft 53 driven by the corresponding twisting unit drive motor 56 between the first rotation speed, the second rotation speed, and the stop state is generated.
  • the switching signal includes a signal for switching each rotation shaft 53 driven by the corresponding twisting unit drive motor 56 to the stop state in which the rotation is stopped.
  • the switching signal may not include a signal for switching each rotation shaft 53 driven by the corresponding twisting unit drive motor 56 to the stop state in which the rotation is stopped. In this case, for example, the switching of each rotation shaft 53 provided in each twisting unit 15 to the stop state is collectively performed for all the twisting units 15.
  • the switching button 95 incorporates a single-color lamp indicating any of turning on, blinking, and turning off.
  • the switching button 95 may be a lamp indicating a plurality of types of colors. In this case, for example, the switching button 95 indicates the rotation speed of the rotation shaft 53 using the color of the lamp to be turned on.
  • the lamp may not be incorporated in the switching button 95, and for example, a lamp as the notification unit of the present invention may be provided for each twisting unit 15 separately from the switching button 95.
  • the lamp is turned on when the rotation speed of the rotation shaft 53 reaches the second rotation speed.
  • a plurality of (for example, three) lamps may be provided for each twisting unit 15.
  • the plurality of lamps include a first lamp that is turned on when the rotation speed of the rotation shaft 53 reaches the second rotation speed, and a second lamp that is turned on when the rotation speed of the rotation shaft 53 reaches the first rotation speed.
  • the yarn Y is threaded to the second feed roller 16 (step S3), and then the yarn Y is threaded to the twisting unit 15 (step S4).
  • the yarn Y may be first threaded to the twisting unit 15 and then threaded to the second feed roller 16.
  • the operator operates the switching button 95 to switch the rotation speeds of the plurality of rotation shafts 53 of the twisting unit 15 as the yarn threading target to the second rotation speed.
  • the rotation speed of the plurality of rotation shafts 53 of the twisting unit 15 as the yarn threading target is switched to the first rotation speed (step S5), and then the yarn Y is threaded to the twist-stopping guide 12 (step S6).
  • the rotation speed of the plurality of rotation shafts 53 of the twisting unit 15 as the yarn threading target may be switched to the first rotation speed.
  • the rotation speed of the plurality of rotation shafts 53 of the twisting unit 15 as the yarn threading target is switched to the first rotation speed (step S5), and then the yarn Y is threaded to the first feed roller 11 (step S7).
  • the rotation speed of the plurality of rotation shafts 53 of the twisting unit 15 as the yarn threading target may be switched to the first rotation speed.
  • the yarn Y needs to be threaded to the first feed roller 11 after being threaded to the twist-stopping guide 12.
  • step S6 the yarn Y is threaded to the twist-stopping guide 12.
  • the twist-stopping guide 12 is configured to be movable between a retracted position at the time of threading the yarn Y to the twisting unit 15 and an operation position at the time of winding the yarn Y by the winding unit 4, the following operation is carried out. That is, in step S6, after threading the yarn Y to the twist-stopping guide 12, the twist-stopping guide 12 is further moved to the operation position.
  • the yarn is threaded to the first heater 13 and the cooler 14 from when the yarn Y is threaded to the twisting unit 15 to when the yarn Y is threaded to the twist-stopping guide 12.
  • the yarn Y may be further threaded to the twist-stopping guide 12, and then the yarn may be threaded to the first heater 13 and the cooler 14.
  • the order of yarn threading of the twist-stopping guide 12, the first heater 13, and the cooler 14 varies depending on the type of yarn and the system configuration.
  • the twisting unit 15 is a three-axis twisting unit 15 having three rotation shafts.
  • the twisting unit may be a five-axis twisting unit having five rotation shafts.
  • each rotation shaft 53 and the plurality of discs 55 attached to the rotation shaft 53 are fixedly arranged so as not to move from the position of FIG. 4 .
  • the twisting unit 15 is not limited to such a configuration.
  • the rotation shaft 53 and the disc 55 may be configured to be movable from the position of FIG. 4 .
  • the yarn Y can be passed between the plurality of discs 55 without opening a space between the plurality of discs 55 by applying the configuration of the present invention.
  • the draw texturing machine 1 can be downsized and the production efficiency for the site is increased as compared with the case of opening and closing the twisting unit by moving the disc 55.
  • a single first roller drive motor 91 is provided in common for the first feed rollers 11 of all the spindles 25 arranged in the draw texturing machine 1.
  • a single first roller drive motor 91 may be provided in common for the first feed rollers 11 of at least two spindles 25 among all the spindles 25 arranged in the draw texturing machine 1.
  • a single first roller drive motor 91 may be provided in common for every four spindles 25.
  • three first roller drive motors 91 are provided for the first feed rollers 11 of the 12 spindles 25.
  • the twisting unit 15 of the embodiment described above the plurality of discs 55 are arranged to draw a spiral.
  • the twisting unit 15 is not limited to one in which the plurality of discs 55 are arranged to draw a spiral.

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

Claims (8)

  1. Maschine zum Strecktexturieren (1), umfassend:
    eine Vielzahl von Spindeln (25), jeweils einschließend
    eine Verdrillungseinheit (15),
    eine erste Garnzuführrolle (11), die auf der stromaufwärtigen Seite der Verdrillungseinheit (15) in einer Fadenlaufrichtung, in der ein Garn (Y) läuft, angeordnet ist,
    eine zweite Garnzuführrolle (16), die auf der stromabwärtigen Seite der Verdrillungseinheit (15) in der Fadenlaufrichtung angeordnet ist;
    einen ersten Garnzuführrollen-Antriebsmechanismus (91), der gemeinsam für die ersten Garnzuführrollen (11) der Vielzahl von Spindeln (25) bereitgestellt ist und die Vielzahl erster Garnzuführrollen (11) drehantreibt; und
    einen zweiten Garnzuführrollen-Antriebsmechanismus (92), der gemeinsam für die zweiten Garnzuführrollen (16) der Vielzahl von Spindeln (25) bereitgestellt ist und die Vielzahl zweiter Garnzuführrollen (16) drehantreibt;
    eine Steuereinheit (60);
    wobei
    die Verdrillungseinheit (15) eine Vielzahl von Scheibeneinheiten (51) aufweist, die jeweils eine Vielzahl von Scheiben (55) und eine Drehwelle (53), die die Vielzahl von Scheiben (55) dreht, einschließt,
    die Drehwelle (53) jeder Scheibeneinheit (51) rotiert, um dem zwischen der Vielzahl von Scheibeneinheiten (51) laufenden Garn (Y) Drall zu verleihen,
    dadurch gekennzeichnet, dass: sie eine Vielzahl von Verdrillungseinheit-Antriebsmechanismen (56) umfasst, die individuell für die Verdrillungseinheiten (15) der Vielzahl von Spindeln (25) bereitgestellt sind, wobei jeder Verdrillungseinheit-Antriebsmechanismus (56) die Drehwelle (53) jeder Scheibeneinheit (51) der entsprechenden Verdrillungseinheit (15) drehantreibt, und
    die Steuereinheit (60) jeden Verdrillungseinheit-Antriebsmechanismus (56), den ersten Garnzuführrollen-Antriebsmechanismus (91) und den zweiten Garnzuführrollen-Antriebsmechanismus (92) regelt, wobei
    eine Vielzahl von Schalteinheiten (95) individuell für die Verdrillungseinheiten (15) der Vielzahl von Spindeln (25) bereitgestellt sind,
    wobei jede Schalteinheit (95)
    durch einen manuellen Betrieb ein Umschaltsignal zum Umschalten der Rotationsgeschwindigkeit jeder durch den entsprechenden Verdrillungseinheit-Antriebsmechanismus (56) angetriebenen Drehwelle (53) zumindest zwischen einer ersten Rotationsgeschwindigkeit, die eine Rotationsgeschwindigkeit zu einem Zeitpunkt der Herstellung des Garns (Y) ist, und einer zweiten Rotationsgeschwindigkeit, die eine Rotationsgeschwindigkeit ist, die langsamer ist als die erste Rotationsgeschwindigkeit, erzeugt, und
    das Umschaltsignal an die Steuereinheit (60) überträgt.
  2. Maschine zum Strecktexturieren (1) nach Anspruch 1, die weiter eine Vielzahl von Meldeeinheiten umfasst, die individuell für die Verdrillungseinheiten (15) der Vielzahl von Spindeln (25) bereitgestellt sind, wobei
    wobei jede Meldeeinheit, dass die Rotationsgeschwindigkeit jeder durch den entsprechenden Verdrillungseinheit-Antriebsmechanismus (56) angetriebenen Drehwelle (53) die zweite Rotationsgeschwindigkeit erreicht hat, meldet.
  3. Maschine zum Strecktexturieren (1) nach Anspruch 2, wobei die Meldeeinheit durch ein Einschalt- oder Blinkmuster einer Lampe, dass die Rotationsgeschwindigkeit jeder Drehwelle (53) die zweite Rotationsgeschwindigkeit erreicht hat, meldet.
  4. Maschine zum Strecktexturieren (1) nach einem der Ansprüche 1 bis 3, wobei das Umschaltsignal ein Signal zum Umschalten jeder durch den entsprechenden Verdrillungseinheit-Antriebsmechanismus (56) angetriebenen Drehwelle (53) in einen Stillstandszustand, in dem die Rotation gestoppt ist, einschließt.
  5. Garneinfädelverfahren zum Einfädeln eines Garns (Y) in eine Maschine zum Strecktexturieren (1), die eine Vielzahl von Spindeln (25) einschließt, jeweils einschließend:
    eine Verdrillungseinheit (15), die eine Vielzahl von Scheibeneinheiten (51) aufweist, die jeweils eine Vielzahl von Scheiben (55) und eine Drehwelle (53) einschließen, die die Vielzahl von Scheiben (55) dreht, und in der die Drehwelle (53) jeder Scheibeneinheit (51) rotiert, um dem zwischen der Vielzahl von Scheibeneinheiten (51) laufenden Garn (Y) Drall zu verleihen,
    eine erste Garnzuführrolle (11), die auf der stromaufwärtigen Seite der Verdrillungseinheit (15) in einer Fadenlaufrichtung, in der ein Garn (Y) läuft, angeordnet ist,
    eine zweite Garnzuführrolle (16), die auf der stromabwärtigen Seite der Verdrillungseinheit (15) in der Fadenlaufrichtung angeordnet ist;
    eine Vielzahl von Verdrillungseinheit-Antriebsmechanismen (56), die individuell für die Verdrillungseinheiten (15) der Vielzahl von Spindeln (25) bereitgestellt sind, wobei jeder Verdrillungseinheit-Antriebsmechanismus (56) die Drehwelle (53) jeder Scheibeneinheit (51) der entsprechenden Verdrillungseinheit (15) drehantreibt;
    einen ersten Garnzuführrollen-Antriebsmechanismus (91), der gemeinsam für die ersten Garnzuführrollen (11) der Vielzahl von Spindeln (25) bereitgestellt ist und die Vielzahl erster Garnzuführrollen (11) drehantreibt;
    einen zweiten Garnzuführrollen-Antriebsmechanismus (92), der gemeinsam für die zweiten Garnzuführrollen (16) der Vielzahl von Spindeln (25) bereitgestellt ist und die Vielzahl zweiter Garnzuführrollen (16) drehantreibt;
    eine Steuereinheit (60); und
    eine Vielzahl von Schalteinheiten (95), die individuell für die Verdrillungseinheiten (15) der Vielzahl von Spindeln (25) bereitgestellt sind,
    wobei die Maschine zum Strecktexturieren (1) ausgebildet ist, eine Rotationsgeschwindigkeit der Drehwelle (53) jeder Scheibeneinheit (51) der Verdrillungseinheiten (15) der Vielzahl von Spindeln (25) zumindest zwischen einer ersten Rotationsgeschwindigkeit, die eine Rotationsgeschwindigkeit zu einem Zeitpunkt der Herstellung des Garns (Y) ist, und einer zweiten Rotationsgeschwindigkeit, die eine Rotationsgeschwindigkeit ist, die langsamer ist als die erste Rotationsgeschwindigkeit, umzuschalten, wobei das Garneinfädelverfahren Folgendes umfasst:
    einen Umschaltprozess des Umschaltens der Rotationsgeschwindigkeit jeder Drehwelle (53) auf die zweite Rotationsgeschwindigkeit für die Verdrillungseinheit (15) als Garneinfädelziel unter den Verdrillungseinheiten (15) der Vielzahl von Spindeln (25); und
    einen Verdrillungseinheit-Garneinfädelprozess des Einfädelns des Garns (Y) in die Verdrillungseinheit (15) als das Garneinfädelziel durch Führen des Garns (Y) zwischen der Vielzahl von Scheibeneinheiten (51), wenn jede Drehwelle (53) mit der zweiten Rotationsgeschwindigkeit rotiert, wenn jede Drehwelle (53) ihre Geschwindigkeit von der ersten Rotationsgeschwindigkeit auf die zweite Rotationsgeschwindigkeit verringert, oder wenn jede Drehwelle (53) ihre Geschwindigkeit in Richtung der zweiten Rotationsgeschwindigkeit erhöht.
  6. Garneinfädelverfahren nach Anspruch 5, wobei der Verdrillungseinheit-Garneinfädelprozess durchgeführt wird, nachdem die Rotationsgeschwindigkeit jeder Drehwelle (53) die zweite Rotationsgeschwindigkeit erreicht hat.
  7. Garneinfädelverfahren nach Anspruch 5 oder 6, wobei
    jede in der Maschine zum Strecktexturieren (1) angeordnete Spindel (25) eine zweite Garnzuführrolle (16) einschließt, die stromabwärts der Verdrillungseinheit (15) in einer Fadenlaufrichtung angeordnet ist, in der das Garn (Y) läuft,
    das Garneinfädelverfahren weiter einen Rollen-Garneinfädelprozess einschließt, bei dem das Garn (Y) in die sich drehende zweite Garnzuführrolle (16) eingefädelt wird, die stromabwärts der Verdrillungseinheit (15) als das Garneinfädelziel angeordnet ist, und
    der Verdrillungseinheit-Garneinfädelprozess nach dem Rollen-Garneinfädelprozess durchgeführt wird.
  8. Garneinfädelverfahren nach Anspruch 7, wobei der Rollen-Garneinfädelprozess durchgeführt wird, bevor die Rotationsgeschwindigkeit jeder Drehwelle (53) die zweite Rotationsgeschwindigkeit erreicht, nachdem der Umschaltprozess durchgeführt worden ist.
EP24174806.0A 2023-06-05 2024-05-08 Maschine zum strecktexturieren und garneinfädelverfahren Active EP4474542B1 (de)

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DE2606198C2 (de) * 1976-02-17 1978-04-06 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Verfahren und Vorrichtung zum Einführen des Fadens in den Friktionsfalschdraller einer Texturiermaschine für Chemiefasern
US6374588B1 (en) * 1999-10-13 2002-04-23 Murata Kikai Kabushiki Kaisha Hairiness controlling device and winder
JP2001303373A (ja) 2000-04-19 2001-10-31 Teijin Seiki Co Ltd モータ駆動式三軸フリクション仮撚装置
JP7319089B2 (ja) * 2019-05-27 2023-08-01 Ｔｍｔマシナリー株式会社 仮撚加工機

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