EP3095900A1 - Dispositif de production de fil combiné - Google Patents

Dispositif de production de fil combiné Download PDF

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Publication number
EP3095900A1
EP3095900A1 EP16168913.8A EP16168913A EP3095900A1 EP 3095900 A1 EP3095900 A1 EP 3095900A1 EP 16168913 A EP16168913 A EP 16168913A EP 3095900 A1 EP3095900 A1 EP 3095900A1
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EP
European Patent Office
Prior art keywords
yarn
roller
drawing roller
yarns
rollers
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.)
Granted
Application number
EP16168913.8A
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German (de)
English (en)
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EP3095900B1 (fr
Inventor
Masahiro Matsui
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
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TMT Machinery Inc
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Publication date
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Publication of EP3095900A1 publication Critical patent/EP3095900A1/fr
Application granted granted Critical
Publication of EP3095900B1 publication Critical patent/EP3095900B1/fr
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Classifications

    • 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
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02—Heat treatment
    • 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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • 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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
    • 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
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
    • 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
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch

Definitions

  • the present invention relates to a combined yarn producing device which is configured to produce a combined yarn by combining two types of yarns.
  • a combined yarn formed by combining two types of yarns which are different in physical properties or the like has been known.
  • a representative example of such a combined yarn is a differential-shrinkage combined yarn produced by combining two types of yarns which are different in thermal shrinkage.
  • a typical differential-shrinkage combined yarn is produced by combining, by air interlacing or the like, a thermally-treated yarn which is thermally treated (thermally set) after drawn and a non-thermally-treated yarn which is not thermally set after drawn.
  • differential-shrinkage combined yarns are produced by combining thermally-treated yarns and non-thermally-treated yarns which are produced independently. Later on, a technology of producing differential-shrinkage combined yarns simultaneously with drawing by using a drawing machine configured to draw material yarns such as undrawn yarns (UDY) and partially oriented yarns (POY) was developed (see, e.g., PTL 1 (Japanese Unexamined Patent Publication No. 57-193543 )).
  • FIG. 8 shows an example of a known device for producing differential-shrinkage combined yarns.
  • This device 100 is provided with a first roller 101 which is a heating roller, a second roller 102 which is a non-heating roller, a heater 103 provided between the first roller 101 and the second roller 102, a guide 104 provided to bypass the heater 103, and a combining section 105.
  • a differential-shrinkage combined yarn is produced by this device, to begin with, two packages Pa and Pb on each of which a material yarn such as the undrawn yarn (UDY) and the partially oriented yarn (POY) is wound are prepared.
  • the yarn Ya on one package Pa is arranged to run a yarn path which connects the first roller 101 with the second roller 102 via the heater 103.
  • the yarn Ya is heated to a drawable temperature at the first roller 101, and is then drawn between the first roller 101 and the second roller 102.
  • the yarn Ya is thermally treated by the heater 103.
  • the yarn Yb on the other package Pb is arranged to run on a yarn path which connects the first roller 101 with the second roller 102 via the guide 104.
  • the yarn Yb is heated to a drawable temperature at the first roller 101, and is then drawn between the first roller 101 and the second roller 102. Being different from the yarn Ya, the yarn Yb is not thermally treated during the drawing.
  • the yarn Ya thermally treated after drawn becomes a low-shrinkage yarn with low thermal shrinkage
  • the non-thermally-treated yarn Yb becomes a high-shrinkage yarn with high thermal shrinkage.
  • packages of material yarns such as UDY and POY are prepared in advance, and two types of yarns different in thermal shrinkage are produced from the material yarns.
  • a combined yarn is produced through at least two steps including a step of producing the packages of the material yarns and a step of producing the two types of yarns from the packages and combining the yarns, and this requires a lot of labor and cost.
  • An object of the present invention is to provide a combined yarn producing device capable of serially performing processes from spinning to production of a combined yarn.
  • a combined yarn producing device includes: a yarn feed roller configured to feed yarns spun out from a spinning apparatus; a first drawing roller on which a first yarn among the yarns fed from the yarn feed roller is wound, the first drawing roller being configured to be higher in yarn feeding speed than the yarn feed roller and to heat and feed the first yarn drawn between the yarn feed roller and the first drawing roller; a second drawing roller on which a second yarn among the yarns fed from the yarn feed roller is wound, the second drawing roller being configured to be higher in yarn feeding speed than the yarn feed roller, to be lower in roller surface temperature than the first drawing roller, and to feed the second yarn drawn between the yarn feed roller and the second drawing roller; and a combining section configured to combine the first yarn fed from the first drawing roller and the second yarn fed from the second drawing roller.
  • the combined yarn producing device of the present invention includes the yarn feed roller configured to feed the yarns spun out from the spinning apparatus 2 and the two drawing rollers which are higher in the yarn feeding speed than the yarn feed roller.
  • the first yarn is drawn between the yarn feed roller and the first drawing roller whereas the second yarn is drawn between the yarn feed roller and the second drawing roller.
  • the second drawing roller is lower in the roller surface temperature than the first drawing roller.
  • the first yarn drawn by the first drawing roller is heated by a higher temperature than the second yarn is.
  • the first yarn and the second yarn after drawn are therefore different in physical properties such as thermal shrinkage. Thereafter, the first yarn and the second yarn are combined in the combining section and a combined yarn is produced.
  • two types of yarns which are different in physical properties are produced from yarns spun out from the spinning apparatus, and processes until the combination of the two types of the yarns are serially performed.
  • processes from the spinning to the production of the combined yarn are serially performed, labor and cost are significantly reduced as compared to known arrangements.
  • the combined yarn producing device of the first aspect is arranged such that the first drawing roller is a heating roller heating the first yarn wound onto a surface of the heating roller, and the second drawing roller is a non-heating roller not heating the second yarn wound onto a surface of the non-heating roller.
  • the first yarn drawn between the yarn feed roller and the first drawing roller is heated by the first drawing roller which is a heating roller.
  • the second yarn drawn between the yarn feed roller and the second drawing roller is wound onto the second drawing roller which is a non-heating roller, and hence the second yarn is not heated by the second drawing roller.
  • the combined yarn producing device of the first or second aspect is arranged such that the yarn feeding speed of the first drawing roller is higher than the yarn feeding speed of the second drawing roller.
  • the first yarn which is heated at a high temperature by the first drawing roller after drawn is a rigid yarn as compared to the second yarn.
  • a difference in the rigidity is one of reasons why the two types of yarns are not easily interlaced at the combining section.
  • the yarn feeding speed of the first drawing roller is higher than that of the second drawing roller, there is a difference in the yarn tension at the time of the combination, and hence the tension of the first yarn is lower than that of the second yarn. With this, the rigid first yarn becomes easily bendable, and the interlacing of the first yarn and the second yarn in the combining section is facilitated.
  • the difference in the tension between the first yarn and the second yarn at the time of the combination is preferably not excessively large.
  • a difference between the yarn feeding speed of the first drawing roller and the yarn feeding speed of the second drawing roller preferably falls within the range of 0.25% to 2.5% of the yarn feeding speed of the first drawing roller (the fourth aspect of the invention).
  • the combined yarn producing device of any one of the first to fourth aspects is arranged such that the first yarn is wound onto the first drawing roller at a winding angle of less than 360 degrees, and the second yarn is wound onto the second drawing roller at a winding angle of less than 360 degrees.
  • the winding angles of the first yarn and the second yarn on the drawing roller are both less than 360 degrees. In other words each yarn is wound not more than once on each drawing roller, and hence the yarn placement on each drawing roller is easily done.
  • the combined yarn producing device of any one of the first to fourth aspects is arranged such that the first drawing roller and the second drawing roller extend in a predetermined direction, the first yarn before wound onto the first drawing roller and the second yarn before wound onto the second drawing roller run side by side in the predetermined direction, the first yarn is wound onto the first drawing roller at a winding angle of less than 360 degrees, a separate roller is provided in the vicinity of the second drawing roller, and the second yarn is wound at least once between the second drawing roller and the separate roller.
  • the second drawing roller does not heat a yarn to a high temperature and hence this roller can be short in diameter.
  • the contact length with the second yarn is short and the gripping force is low.
  • the second yarn is wound at least once between the second drawing roller and the separate roller. The contact length between the second drawing roller and the second yarn is therefore long and the gripping force is increased, with the result that the second yarn is less likely to slip.
  • the first yarn and the second yarn are lined up in the roller axial direction.
  • the first yarn is wound onto the first drawing roller at a winding angle of less than 360 degrees, and hence the yarn path of the first yarn after wound onto the first drawing roller is unlikely to be shifted from the yarn path of the first yarn before wound onto the first drawing roller.
  • the second yarn is wound between the second drawing roller and the separate roller at least once, and hence the yarn path of the second yarn after wound onto the second drawing roller is shifted from the yarn path of the second yarn before wound onto the second drawing roller. This makes it possible to cause the yarn path of the first yarn fed by the first drawing roller and the yarn path of the second yarn fed by the second drawing roller to converge, immediately before reaching the combining section.
  • FIG. 1 is a front elevation of a spun yarn take-up apparatus of the present embodiment.
  • the up-down direction and the left-right direction shown in FIG. 1 will be used as the up-down direction and the left-right direction of the spun yarn take-up apparatus.
  • the direction orthogonal to the plane of FIG. 1 will be used as the front-back direction of the spun yarn take-up apparatus.
  • the direction away from the plane of FIG. 1 toward the viewer is the frontward direction.
  • the spun yarn take-up apparatus 1 is provided with members such as a combined yarn producing device 3, a winding device 4, and a controller 5.
  • spinnerets 7 (7a and 7b) of a spinning apparatus 2 are provided above the spun yarn take-up apparatus 1.
  • FIG. 1 shows only two spinnerets 7, in reality plural spinnerets 7 are provided to be lined up along the left-right direction.
  • yarns Y (Y1 and Y2) made of synthetic fibers (e.g., polyester fibers) are spun out, respectively.
  • an oil guide 8 is provided below each spinneret 7, to apply oil to the spun-out yarns Y.
  • the combined yarn producing device 3 is provided with rollers 10 to 19 configured to take up the yarns Y on which the oil has been applied. While the rollers 10 to 19 take up the yarns Y, the combined yarn producing device 3 draws and thermally treats the yarns Y to produce two yarns Y1 and Y2 which are different in physical properties. Furthermore, a single combined yarn Ym is produced by combining the two yarns Y1 and Y2. The structure of the combined yarn producing device 3 will be detailed later.
  • the winding device 4 is configured to wind combined yarns Ym respectively produced by the combined yarn producing devices 3.
  • the winding device 4 includes members such as a bobbin holder 21 and a contact roller 22.
  • the bobbin holder 21 is long in the front-back direction (i.e., the direction orthogonal to the plane of FIG. 1 ) in shape, and is rotationally driven by an unillustrated motor.
  • bobbins 23 are attached to be lined up along the longitudinal direction of the bobbin holder 21.
  • the winding device 4 rotates the bobbin holder 21 so as to wind the combined yarns Ym onto the respective bobbins 23, with the result that packages 24 are formed.
  • the contact roller 22 adjusts the shape of each package 24 by making contact with the surface of each package 24 and applying predetermined contact pressure thereto.
  • the controller 5 is provided with a setting unit 25 for setting control parameters of various actions of the spun yarn take-up apparatus 1. Based on the parameters set by an operator through the setting unit 25, the controller 5 controls the sections of the combined yarn producing device 3 and the winding device 4. For example, the controller 5 controls the speed of a motor (not illustrated) by which the rollers 10 to 19 of the combined yarn producing device 3 are driven and the temperature of a heater 30 provide in each of the rollers 11 to 15.
  • a motor not illustrated
  • the combined yarn producing device 3 includes a roller 10, a heat retaining box 20, preheating rollers 11, 12, and 13 (yarn feed rollers of the present invention), first drawing rollers 14 and 15, a second drawing roller 16, rollers 17, 18, and 19, and an interlacing device 26.
  • the rollers 10 to 19 are disposed so that the axial direction of each roller is along the front-back direction.
  • the axial direction may not be in parallel to the front-back direction in at least one of the rollers 10 to 19.
  • the axial direction of at least one of the rollers may be slightly deviated upward or downward relative to the front-back direction.
  • the rollers 18 and 19 may be disposed so that the axial direction of each roller is along the left-right direction.
  • the yarns Y spun out from the spinning apparatus 2 are fed by the rollers 10 to 19 and run side by side in the front-back direction.
  • roller 10 Onto the roller 10, plural (e.g., eight) yarns Y spun out from the spinnerets 7 of the spinning apparatus 2 are wound to be side by side in the axial direction of the roller 10 (i.e., the direction orthogonal to the plane of FIG. 1 ).
  • the roller 10 is driven by an unillustrated motor, and takes up the yarns Y spun out from the spinning apparatus 2 and sends the yarns Y to the heat retaining box 20.
  • FIG. 2 is a perspective view of the heat retaining box 20, the preheating rollers 11 to 13, the first drawing rollers 14 and 15, and the second drawing roller 16.
  • the heat retaining box 20 is made of a heat insulating material. Through a right wall member of this heat retaining box 20, a yarn inlet 20a, a first yarn outlet 20b, and a second yarn outlet 20c are formed.
  • the yarn inlet 20a is formed at a lower end portion of the right wall member of the heat retaining box 20.
  • the first yarn outlet 20b is formed at an upper end portion of the right wall member of the heat retaining box 20, whereas the second yarn outlet 20c is formed at a central portion in the up-down direction of the right wall member.
  • the yarns Y sent from the roller 10 are introduced into the heat retaining box 20 through the yarn inlet 20a.
  • five heating rollers in total i.e., three preheating rollers 11 to 13 and two first drawing rollers 14 and 15 are housed.
  • the three preheating rollers 11 to 13 are provided in a lower space in the heat retaining box 20, whereas the two first drawing rollers 14 and 15 are provided in an upper space in the heat retaining box 20.
  • the five heating rollers are each rotationally driven by an unillustrated motor.
  • the yarn feeding speeds of the three preheating rollers 11 to 13 are V1, V2, and V3, respectively.
  • the relationship between the yarn feeding speeds of the three preheating rollers 11 to 13 is V1 ⁇ V2 ⁇ V3. In this way, the running speed of the yarns Y is gradually increased across the three preheating rollers 11 to 13.
  • the yarn feeding speeds of the two first drawing rollers 14 and 15 are V4 and V5, respectively, and V4 is substantially equal to V5.
  • the yarn feeding speeds V4 and V5 of the two first drawing rollers 14 and 15 are higher than the yarn feeding speeds V1 to V3 of the three preheating rollers 11 to 13.
  • the heater 30 is provided in each of the five heating rollers (the three preheating rollers 11 to 13 and the two first drawing rollers 14 and 15).
  • the yarns Y wound onto each heating roller are heated on the surface of the roller which is maintained at a predetermined temperature by the heater 30.
  • the three preheating rollers 11 to 13 are heating rollers for heating the yarns Y to a drawable temperature.
  • the roller surface temperatures of the three preheating rollers 11, 12, and 13 are T1, T2, and T3, respectively.
  • the roller surface temperature T3 of the preheating roller 13 is arranged to be equal to or higher than a glass transition temperature (e.g., 80 to 95 degrees centigrade in cases of polyester fibers).
  • the relationship between the temperatures of the three preheating rollers 11 to 13 is arranged to be T1>T2>T3.
  • a temperature difference between two neighboring preheating rollers is, for example, about 5 degrees centigrade.
  • the two first drawing rollers 14 and 15 are heating rollers for heating the drawn yarns Y and fixing the drawn state.
  • thermal treatment performed for drawn yarns may be referred to as "thermal setting”.
  • the roller surface temperatures of the two first drawing rollers 14 and 15 are T4 and T5, respectively.
  • T4 and T5 may be equal to each other or different from each other.
  • T4 and T5 are arranged to be higher than T3 (e.g., arranged to be 120 to 150 degrees centigrade).
  • the second drawing roller 16 is provided outside the heat retaining box 20 and to the right of the second yarn outlet 20c. This second drawing roller 16 is driven by an unillustrated roller.
  • the yarn feeding speed V6 of the second drawing roller 16 is higher than the yarn feeding speeds V1 to V3 of the preheating rollers 11 to 13.
  • the yarn feeding speeds V4 and V5 of the first drawing rollers 14 and 15 are arranged to be higher than the yarn feeding speed V6 of the second drawing roller 16. The reason of this arrangement will be given later.
  • the second drawing roller 16 is not provided with a heater.
  • the second drawing roller 16 is a non-heating roller which does not heat yarns wound thereon.
  • the roller surface temperature T6 of the second drawing roller 16 is substantially equal to an environmental temperature (e.g., 40 degrees centigrade), and is significantly lower than the roller surface temperatures T4 and T5 of the two first drawing rollers 14 and 15.
  • the yarns Y spun out from the spinning apparatus 2 and taken up by the roller 10 are introduced into the heat retaining box 20 through the yarn inlet 20a, and are wound onto the three preheating rollers 11 to 13 one by one. Thereafter, the yarns Y are divided into two groups in the heat retaining box 20, and the two groups of the yarns Y go out from the heat retaining box 20 through the two yarn outlets 20b and 20c, respectively.
  • a yarn Y1 (a first yarn of the present invention) spun out from the left spinneret 7a in FIG. 1 will be described.
  • the yarn Y1 introduced into the heat retaining box 20 through the yarn inlet 20a is wound onto the front parts of the three preheating rollers 11 to 13, and are preliminarily heated to the drawable temperature by the lower three preheating rollers 11 to 13.
  • the preliminarily-heated yarn Y1 is then wound onto the upper two first drawing rollers 14 and 15.
  • the yarn Y1 is drawn by the difference in the yarn feeding speed between the preheating roller 13 and the first drawing roller 14.
  • the yarn Y1 is heated to a higher temperature while being fed by the upper two first drawing rollers 14 and 15, with the result that the drawn state is thermally set.
  • the thermally-set yarn Y1 goes out from the heat retaining box 20 through the first yarn outlet 20b.
  • a yarn Y2 (a second yarn of the present invention) spun out from the right spinneret 7b in FIG. 1 will be described.
  • the yarn Y2 introduced into the heat retaining box 20 through the yarn inlet 20a is wound onto the back parts of the three preheating rollers 11 to 13, and is preliminarily heated to a drawable temperature by the preheating rollers 11 to 13. Until this stage, the yarn Y2 is treated in the same manner as the yarn Y1. However, the yarn Y2 is not wound onto the upper two first drawing rollers 14 and 15, and goes out from the heat retaining box 20 through the second yarn outlet 20c.
  • the yarn Y2 from the second yarn outlet 20c is wound onto the second drawing roller 16.
  • the yarn Y2 is drawn due to the difference in the yarn feeding speed between the preheating roller 13 and the second drawing roller 16.
  • the second drawing roller 16 is a non-heating roller not including a heater.
  • the yarn Y2 drawn between the preheating roller 13 and the second drawing roller 16 is not thermally set after drawn.
  • the two yarns Y1 and Y2 are different from each other in physical properties such as thermal shrinkage.
  • the yarn Y2 which is not thermally set after drawn has higher thermal shrinkage than the yarn Y1 which is thermally set.
  • the thermally-set yarn Y1 is a low-shrinkage yarn with low thermal shrinkage
  • the non-thermally-set yarn Y2 is a high-shrinkage yarn with high thermal shrinkage.
  • the thermal shrinkage (boiling water shrinkage) of the yarn Y1 is, for example, 5 to 10%
  • the thermal shrinkage of the yarn Y2 is, for example, 10 to 20%.
  • the yarn Y1 on the front side is wound at a winding angle of less than 360 degrees onto each of the three preheating rollers 11 to 13 and the two first drawing rollers 14 and 15.
  • the yarn Y2 on the back side is wound at a winding angle of less than 360 degrees onto each of the three preheating rollers 11 to 13 and the second drawing roller 16.
  • the yarn placement of the yarn Y2 is performed first and then the yarn placement of the yarn Y1 is performed.
  • the yarn Y1 may run on the back side whereas the yarn Y2 may run on the front side. In such a case, the yarn placement of the yarn Y1 is performed first.
  • the yarn paths of the yarn Y1 and Y2 after the yarns Y1 and Y2 are wound onto each roller are not deviated from the yarn paths before the yarns Y1 and Y2 are wound onto each roller, and hence the yarn Y1 and the yarn Y2 run side by side in the front-back direction.
  • the yarn paths of the yarn Y1 and the yarn Y2 naturally converge when the yarn path of the yarn Y2 is shifted by slightly tilting the roller axial direction of the second drawing roller 16 relative to the front-back direction.
  • the yarn Y1 coming from the heat retaining box 20 through the first yarn outlet 20b and the yarn Y2 coming through the second yarn outlet 20c and sent to the second drawing roller 16 are both wound onto the rollers 17 and 18.
  • the interlacing device 26 (a combining section of the present invention) configured to interlace the two types of the yarns Y1 and Y2 is provided.
  • a nonlimiting example of the interlacing device 26 is a device having an interlace nozzle which is configured to blow air in the direction orthogonal to the running direction of the yarns Y to interlace filaments.
  • the interlacing device 26 has four interlace nozzles. In each interlace nozzle, one yarn Y1 and one yarn Y2 are inserted.
  • each nozzle filaments constituting the two yarns Y1 and Y2 are interlaced by the airflow.
  • four combined yarns Ym are produced by the interlacing device 26.
  • the combined yarns Ym produced by the interlacing device 26 are sent to the winding device 4 by the roller 19, and are wound onto the respective bobbins 23 by the winding device 4.
  • the yarn feeding speeds of the rollers including the preheating rollers 11 to 13, the first drawing rollers 14 and 15, and the second drawing roller 16 and the temperatures of the heaters 30 in the five heating rollers 11 to 15 are set by an operator through the setting unit 25.
  • the controller 5 controls the rotation speeds of the motors driving the rollers and the heating temperatures of the heaters 30.
  • the yarn Y1 is thermally set after drawn whereas the yarn Y2 is not thermally set after drawn, so that two types of yarns Y1 and Y2 which are different in physical properties are produced. Then processes are serially performed until the two types of the yarns Y1 and Y2 are combined. In this way, because the processes from the spinning to the production of the combined yarn Ym are serially performed, labor and cost are significantly reduced as compared to known arrangements.
  • the second drawing roller 16 on which the yarn Y2 is wound is not a roller which heats and thermally sets a yarn.
  • the contact length of the yarn Y2 on the roller is not required to be long.
  • the second drawing roller 16 is therefore only required to be a roller which is large enough to obtain gripping force with which the yarn Y2 is not slipped, and can be shorter in diameter than the first drawing rollers 14 and 15.
  • the second drawing roller 16 is additionally provided in the spun yarn take-up apparatus 1 of the present embodiment.
  • the apparatus is not very large as compared to the known apparatuses because the diameter of the second drawing roller 16 can be short.
  • the yarn Y1 which is thermally set at a high temperature is a rigid yarn as compared to the yarn Y2 which is not thermally set.
  • Such a difference in the rigidity is one of reasons why the two types of the yarns Y1 and Y2 are not easily interlaced at the interlacing device 26.
  • the yarn feeding speeds V4 and V5 of the first drawing rollers 14 and 15 are higher than the yarn feeding speed V6 of the second drawing roller 16
  • the yarns Y1 and Y2 are different in the yarn tension at the time of the combination, and the tension of the yarn Y1 is lower than the tension of the yarn Y2.
  • the rigid yarn Y1 becomes easily bendable, and the interlacing of the two types of the yarns Y1 and Y 2 in the interlacing device 26 is facilitated.
  • the difference in the yarn tension between the two types of the yarns Y1 and Y2 at the time of the combination is preferably not excessively large.
  • the difference in the speed between the first drawing rollers 14 and 15 and the second drawing roller 16 is preferably 0.25% to 2.5% of the yarn feeding speeds V4 and V5 of the first drawing rollers 14 and 15.
  • the spun yarn take-up apparatus of the present embodiment can be used not only for producing the combined yarn Ym by combining the two types of the yarns Y1 and Y2 but also for producing only one type of yarns.
  • all of the yarns Y spun out from the spinnerets 7 of the spinning apparatus 2 are wound onto the two first drawing rollers 14 and 15, and no yarn Y is wound onto the second drawing roller 16.
  • all of the yarns Y are thermally set after drawn, so that only the yarns with low thermal shrinkage are produced.
  • all of the yarns Y spun out from the spinnerets 7 are wound onto the second drawing roller 16 and all of the yarns Y are not thermally set after drawn, only yarns with high thermal shrinkage are produced.
  • the yarn thickness (e.g., thickness of each filament and/or the number of filaments) may be different.
  • the yarn Y1 which is a low-shrinkage yarn is on the outer side and functions as a sheath yarn
  • the yarn Y2 which is a high-shrinkage yarn is on the inner side and functions as a core yarn.
  • the yarn Y1 which functions as the sheath yarn is narrow whereas the yarn Y2 which functions as the core yarn is thick, a yarn which is tense and stiff but is gentle in touch is obtained, and such an arrangement is preferred in terms of the texture.
  • the arrangements (the size of holes spinning out filaments or the number of the holes) of the spinnerets 7 producing the respective yarns are differentiated, or the amounts of discharged polymer are differentiated.
  • the second drawing roller 16 on which the yarn Y2 is wound is a non-heating roller not including a heater
  • the second drawing roller 16 may be a heating roller including a heater 31 as shown in FIG. 3 .
  • the controller 5 controls the heater 31 so that the roller surface temperature of the second drawing roller 16 is lower than the roller surface temperatures of the first drawing rollers 14 and 15.
  • the heater 31 of the second drawing roller 16 may be turned on or off by the controller 5 in consideration of the type of the yarn to be produced.
  • the separate roller 33 may be provided in the vicinity of the second drawing roller 16, and the yarn Y2 may be wound at least once between the second drawing roller 16 and the separate roller 33.
  • the second drawing roller 16 can be arranged to be shorter in diameter than the first drawing rollers 14 and 15 which thermally set the yarn Y1 after drawn.
  • the diameter of the second drawing roller 16 is short, the contact length with the yarn Y2 is short and the gripping force is low.
  • the contact length between the second drawing roller 16 and the yarn Y2 is long and the gripping force is increased, with the result that the yarn Y2 is less likely to slip. Because a main objective of this arrangement is to increase the gripping force, the number of times of the winding of the yarn Y2 is not required to be large, and once or twice is sufficient.
  • the yarn Y1 before wound onto the first drawing rollers 14 and 15 and the yarn Y2 before wound onto the second drawing roller 16 run side by side in the front-back direction (see FIG. 2 ).
  • the yarn Y1 on the front side is wound onto the winding angle of less than 360 degrees onto the first drawing rollers 14 and 15, and hence the yarn path of the yarn Y1 after wound onto the first drawing rollers 14 and 15 is not shifted from the yarn path of the yarn Y1 before wound onto the first drawing rollers 14 and 15.
  • the yarn Y2 on the back side is wound at least once between the second drawing roller 16 and the separate roller 33, and hence the yarn path of the yarn Y2 after wound onto the second drawing roller 16 is shifted frontward as compared to the yarn path of the yarn Y2 before wound onto the second drawing roller 16.
  • the yarn paths of the yarn Y1 and the yarn Y2 are converged.
  • the yarn path of the yarn Y2 is shifted in the direction away from the yarn Y1.
  • the amount of the shifting is small, and hence it is not difficult to cause the yarn path of the yarn Y2 and the yarn path of the yarn Y1 to be converged.
  • the yarn Y2 is wound more than twice, it becomes difficult to cause the yarn paths to be converged because of a large amount of the shifting from the yarn path of the yarn Y1.
  • the yarn paths of the yarn Y1 and the yarn Y2 are easily converged when the yarn Y2 is wound once or twice.
  • the diameter of the second drawing roller 16 may be determined so that required gripping force is obtained with the winding of the yarn Y2 once or twice.
  • the yarn placement of the yarn Y2 on the back side is performed first, and the yarn Y2 is wound once or twice onto each of the second drawing roller 16 and the separate roller 33, from the back side to the front side. Thereafter, the yarn Y1 on the front side is placed.
  • the yarn feed rollers (preheating rollers 11 to 13) feeding the yarns Y (both of the yarn Y1 and the yarn Y2) spun out from the spinning apparatus 2 are heating rollers.
  • these yarn feed rollers may be non-heating rollers.
  • the yarn feed rollers may be non-heating rollers.
  • the numbers of the rollers and the layout of the rollers may be suitably changed.
  • the second drawing roller 16 may be provided to the right of the roller 17. With this arrangement, the winding angle of the yarn Y2 on the second drawing roller 16 is large and hence the gripping force is increased.
  • the second drawing roller 16 is provided in a space between the yarn path from the spinnerets 7 to the roller 10 and the yarn path between the roller 17 and the roller 18. This space, however, is small in reality, and hence yarn placement is not easy and must be carefully done. In this connection, such a problem does not occur in FIG. 5(a) , because the second drawing roller 16 is provided in a space to the right of the yarn path between the roller 17 and the roller 18.
  • the yarn Y2 sent by the second drawing roller 16 may be directly sent to the roller 18 without being wound onto the roller 17.
  • the yarn Y2 may be directly sent to the roller 18 without being wound onto the roller 17 in the same manner as in FIG. 5(b) , and may be wound at least once between the second drawing roller 16 and the separate roller 33.
  • a spun yarn take-up apparatus 61 shown in FIG. 6 includes two preheating rollers 41 and 42 and two first drawing rollers 43 and 44 which are housed in a heat retaining box 40, and a second drawing roller 45 provided outside the heat retaining box 40.
  • the two preheating rollers 41 and 42 are provided in an upper space in the heat retaining box 40, whereas the two first drawing rollers 43 and 44 are provided in a lower space in the heat retaining box 40.
  • These four rollers 41 to 44 are heating rollers each including a heater 50.
  • the second drawing roller 45 is a non-heating roller not including a heater, and is provided below the heat retaining box 40.
  • the controller 5 controls the motors (not illustrated) and the heaters 50 for the two preheating rollers 41 and 42 and the two first drawing rollers 43 and 44 in the heat retaining box 40, respectively.
  • the yarn feeding speeds V3 and V4 of the two first drawing rollers 43 and 44 are arranged to be higher than the yarn feeding speeds V1 and V2 of the two preheating rollers 41 and 42.
  • the roller surface temperatures T3 and T4 of the two first drawing rollers 43 and 44 are arranged to be higher than the roller surface temperatures T1 and T2 of the two preheating rollers 41 and 42.
  • the controller 5 controls the motor of the second drawing roller 45.
  • the yarn feeding speed V5 of the second drawing roller 45 is arranged to be higher than the yarn feeding speeds V1 and V2 of the preheating rollers 41 and 42. Because the second drawing roller 45 is a non-heating roller, the roller surface temperature T5 of the second drawing roller 45 is lower than the roller surface temperatures T3 and T4 of the two first drawing rollers 43 and 44.
  • the yarns Y spun out from the spinning apparatus 2 are introduced into the heat retaining box 40 through the yarn inlet 40a.
  • the yarn Y1 among the yarns Y is, to begin with, wound onto the two preheating rollers 41 and 42, and is preliminarily heated to a drawable temperature while being fed by the two preheating rollers 41 and 42.
  • the yarn Y1 is then wound onto the two first drawing rollers 43 and 44.
  • the yarn Y1 is drawn between the rollers 42 and 43 which are different in the yarn feeding speed, and is thermally set by being heated to a high temperature by the two first drawing rollers 43 and 44. Thereafter, the yarn Y1 goes out from the heat retaining box 40 through the first yarn outlet 40b and is wound onto the roller 47.
  • the yarn Y2 among the yarns is wound onto the two preheating rollers 41 and 42 and is preliminarily heated to a drawable temperature while being fed by the two preheating rollers 41 and 42.
  • the yarn Y2 then goes out from the heat retaining box 40 through the second yarn outlet 40c and is wound onto the second drawing roller 45.
  • the yarn Y2 is drawn between the rollers 42 and 45 which are different in the yarn feeding speed.
  • the second drawing roller 45 is a non-heating roller, and hence the yarn Y2 is not thermally set after drawn.
  • the yarn Y2 is fed by the rollers 46 and 47, and the yarn Y2 and the yarn Y1 are combined by the interlacing device 49 provided between the rollers 47 and 48.
  • a combined yarn Ym produced by the combination is wound by the winding device 4.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP16168913.8A 2015-05-19 2016-05-10 Dispositif de production de fil combiné Active EP3095900B1 (fr)

Applications Claiming Priority (1)

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JP2015101507A JP6671110B2 (ja) 2015-05-19 2015-05-19 混繊糸製造装置

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CN109652887A (zh) * 2018-12-19 2019-04-19 浙江恒澜科技有限公司 一种双色仿毛聚酯纤维的生产方法
EP3842576A1 (fr) * 2019-12-24 2021-06-30 TMT Machinery, Inc. Dispositif de production de fil continu combiné

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JP7053287B2 (ja) * 2018-01-29 2022-04-12 Ｔｍｔマシナリー株式会社 紡糸延伸装置
CN111485297A (zh) * 2020-03-23 2020-08-04 扬州海众织物有限公司 一种塑料编织底布的定型方法
CN116163024B (zh) * 2022-12-09 2023-10-03 浙江恒优化纤有限公司 涤纶poy/fdy异收缩混纤丝生产装备和工艺

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CN109652887A (zh) * 2018-12-19 2019-04-19 浙江恒澜科技有限公司 一种双色仿毛聚酯纤维的生产方法
EP3842576A1 (fr) * 2019-12-24 2021-06-30 TMT Machinery, Inc. Dispositif de production de fil continu combiné

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EP3095900B1 (fr) 2018-04-18
JP6671110B2 (ja) 2020-03-25
JP2016216846A (ja) 2016-12-22

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