EP3892763A1 - Draw texturing machine - Google Patents
Draw texturing machine Download PDFInfo
- Publication number
- EP3892763A1 EP3892763A1 EP21161767.5A EP21161767A EP3892763A1 EP 3892763 A1 EP3892763 A1 EP 3892763A1 EP 21161767 A EP21161767 A EP 21161767A EP 3892763 A1 EP3892763 A1 EP 3892763A1
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- EP
- European Patent Office
- Prior art keywords
- yarn
- twisting
- plural
- partition
- units
- 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.)
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- 238000005192 partition Methods 0.000 claims abstract description 76
- 238000000465 moulding Methods 0.000 claims description 9
- 238000004804 winding Methods 0.000 abstract description 24
- 238000011144 upstream manufacturing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 241000981770 Buddleja asiatica Species 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—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
- D01H1/11—Spinning by false-twisting
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
- D01H13/045—Guide tube
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist
- D01H7/923—Spinning or twisting arrangements for imparting transient twist, i.e. false twist by means of rotating devices
-
- 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
-
- 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
- D02G1/06—Spindles
-
- 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
Definitions
- the present invention relates to a draw texturing machine in which plural twisting units configured to twist yarns are aligned in a predetermined arrangement direction and provided on plural stages.
- Patent Literature 1 Choinese Unexamined Patent Publication No. 1036668614
- a draw texturing machine in which plural twisting units configured to twist yarns are aligned in a predetermined arrangement direction and provided on plural stages has been known (see FIG. 3 and FIG. 4 in Patent Literature 1). Because the twisting units are provided on plural stages, a large number of the twisting units can be provided in the arrangement direction.
- a pin-type twisting unit, a friction-type twisting unit, and a belt-type twisting unit have been well known as the twisting units.
- the pin-type twisting unit includes plural rollers and a cylindrical pin in contact with the circumferential surfaces of the rollers. The rollers are rotated to rotate the pin, with the result that a yarn running inside the pin is twisted.
- a yarn runs while making contact with the circumferential surfaces of plural discs which are spirally arranged. The discs are rotated so that the yarn is twisted.
- the belt-type twisting unit two endless belts are provided to sandwich a yarn. Each endless belt is rotated so that the yarn is twisted.
- rotating members such as a roller, a disc, and an endless belt are rotated so that yarns are twisted.
- the yarns may pass close to the twisting units on the upper stage when yarns are threaded to the twisting units on the lower stage.
- the yarns may be disadvantageously swung because of an influence of the wind, generated by the rotating members, so that the yarn threading becomes difficult or the yarn threading fails.
- the broken yarns may be unintentionally wound around the rotating members.
- the present invention has been done to solve the problem above, and objects of the present invention are, firstly, to facilitate yarn threading and, secondly, to suppress an unintentional winding of yarns around rotating members at the time of yarn breakage in a draw texturing machine in which plural twisting units are provided on plural stages.
- a draw texturing machine of the present invention is a draw texturing machine comprising plural twisting units each of which includes a rotating member rotated at the time of twisting a yarn and which are aligned in a predetermined arrangement direction and provided on plural stages, and a partition is provided between a yarn path of the yarn passing one of the plural twisting units on one of the plural stages and the rotating member of another one of the plural twisting units on another stage of the plural stages, and the another one of the plural twisting units is close to the yarn path.
- the partition is provided between the yarn path and the rotating member of one twisting unit, it is possible to suppress the influence of the wind, generated by the rotation of the rotating member, on the yarn.
- the yarn swing is therefore suppressed, and hence the yarn threading is easily performed.
- the presence of the partition suppresses the unintentional winding of the yarn around the rotating member in the yarn breakage.
- the plural twisting units are provided to form two stages which are an upper stage and a lower stage.
- twisting units are provided on two stages, a space required for providing the twisting units is reduced in the vertical direction.
- twisting units on the upper stage and other twisting units on the lower stage are alternately arranged in the arrangement direction, the yarn twisted by each of the twisting units on the upper stage passes between two adjacent ones of the other twisting units on the lower stage, the yarn twisted by each of the other twisting units on the lower stage passes between two adjacent ones of the twisting units on the upper stage, and the partition is provided between two adjacent ones of the plural twisting units on each of the upper stage and the lower stage.
- the partition includes a wall portion surrounding at least a part of the periphery of the yarn.
- the wall portion surrounds at least a part of the periphery of the yarn as described above, it is possible to further effectively suppress the yarn swing due to the wind from the rotating member and the unintentional winding of the yarn around the rotating member.
- the wall portion is shaped to surround only a part of the periphery of the yarn.
- the wall portion When the wall portion is formed as a cylindrical member surrounding the entire periphery of the yarn, it becomes difficult to thread the yarn to the inside of the cylindrical wall portion, even though it is possible to increase the effect of suppressing the yarn swing due to the wind from the rotating member and the unintentional winding of the yarn around the rotating member. Meanwhile, when the wall portion is shaped to surround only a part of the periphery of the yarn, the yarn is easily threaded to the inner side of the wall portion via the opening provided in a place where the wall portion is not provided in the partition.
- the wall portion extends over a range in which the rotating member is provided in a yarn running direction.
- the partition is arranged as described above, it is possible to further effectively suppress the yarn swing due to the wind from the rotating member and the unintentional winding of the yarn around the rotating member.
- the partition and a yarn guide are integrally formed.
- the yarn guide may be provided in the vicinity of each twisting unit. Meanwhile, when the yarn guide and the partition are integrally formed, a step of providing the yarn guide is unnecessary.
- the yarn guide is embedded in the partition by insert molding.
- the partition and the yarn guide are easily and certainly integrated even when the partition and the yarn guide are made of different materials.
- the partition includes an engaging portion which is flexible and engageable with an attached portion to which the partition is attached, and the engaging portion is deformable between an engagement state in which the engaging portion and the attached portion are engaged with each other and a cancellation state in which the engagement between the engaging portion and the attached portion is cancelled.
- the partition is easily attached to and detached from the attached portion only in such a way that the operator causes the engaging portion to be deformed.
- each of the plural twisting units includes plural rollers each of which is the rotating member and a cylindrical pin in contact with the circumferential surfaces of the rollers, and each of the plural twisting units is a pin-type twisting unit configured to twist the yarn running inside the pin in such a way that the rollers are rotated so that to rotate the pin is rotated.
- each twisting unit is a pin-type twisting unit
- the tension of the yarn is almost zero in the yarn threading so that the yarn swing easily occurs. Therefore, providing the partition is especially effective.
- FIG. 1 shows the overall structure of a draw texturing machine 1 related to the present embodiment.
- the draw texturing machine 1 includes a yarn supplying unit 2 configured to supply yarns Y, a processing part 3 configured to false-twist the yarns Y supplied from the yarn supplying unit 2, and a winding unit 4 configured to wind the yarns Y false-twisted by the processing part 3 so as to form packages P.
- the yarn supplying unit 2 includes a creel stand 10 retaining yarn supply packages Q, and supplies the yarns Y to the processing part 3.
- the following members are provided in this order from the upstream in the yarn running direction along a yarn path: first feed rollers 11; a twist-stopping guide 12; a first heater 13; at least one twisting unit 14 (14A and 14B) ; second feed rollers 15; a combining unit 16; third feed rollers 17; a second heater 18; and fourth feed rollers 19.
- the yarns Y false-twisted by the processing part 3 are wound by winding devices 20 so as to form packages P.
- the yarns Y run while being aligned in a direction vertical to the sheet of FIG. 1 (hereinafter, it is referred to as an arrangement direction).
- Plural sets of the above-described members 11 to 19 are aligned in the arrangement direction to correspond to the yarns Y. With this arrangement, the yarns Y can be simultaneously false-twisted in the draw texturing machine 1.
- the draw texturing machine 1 includes a main base 5 and a winding base 6 which oppose each other and are spaced apart from each other in the left-right direction of FIG. 1 .
- the main base 5 and the winding base 6 are provided to extend in the arrangement direction.
- a supporting frame 7 is provided between the upper portion of the main base 5 and the upper portion of the winding base 6.
- the plural sets of the above-described members 11 to 19 constituting the processing part 3 are mainly attached to the main base 5 and the supporting frame 7.
- the yarns Y run mainly around the working space 8 surrounded by the main base 5, the winding base 6, and the supporting frame 7. An operator performs operations such as yarn threading in the working space 8.
- the first feed rollers 11 send a yarn Y supplied from the yarn supplying unit 2 to the first heater 13.
- the first feed rollers 11 are provided below the supporting frame 7.
- the first feed rollers 11 include a drive roller and a driven roller, and the yarn Y is sent while being sandwiched by the drive roller and the driven roller.
- the second feed rollers 15, the third feed rollers 17, and the fourth feed rollers 19 are similarly arranged.
- the twist-stopping guide 12 prevents twist of the yarn Y formed by each twisting unit 14 from being propagated to the upstream in the yarn running direction of the twist-stopping guide 12.
- the twist-stopping guide 12 is provided between the first feed rollers 11 and the first heater 13 in the yarn running direction.
- the twist-stopping guide 12 is attached to a shifter 22 which is movable along a guide rail 21 extending roughly in the vertical direction.
- the shifter 22 is movable between a yarn threading position (indicated by dashed lines in FIG. 1 ) in the vicinity of the first feed rollers 11 and an operation position (indicated by full lines in FIG. 1 ) immediately above the first heater 13.
- the operator performs the yarn threading to the twist-stopping guide 12 while the shifter 22 is at the yarn threading position, and the shifter 22 is moved to the operation position after the yarn threading. Therefore, when the draw texturing machine 1 is in operation, the twist-stopping guide 12 is immediately above the first heater 13.
- the first heater 13 heats the yarn Y twisted by each twisting unit 14.
- the first heater 13 is provided at an upper end portion of the main base 5, and extends in the vertical direction.
- Each twisting unit 14 twists the yarn Y.
- Each twisting unit 14 is provided immediately below the first heater 13 in the main base 5. Therefore, a yarn path from the twist-stopping guide 12 to each twisting unit 14 via the first heater 13 is along the vertical direction.
- the twisting units 14 include the twisting units 14 on an upper stage and the twisting units 14 on a lower stage.
- twisting units 14A the twisting units 14 on the upper stage
- twisting units 14B the twisting units 14B. The details of the twisting units 14 will be given later.
- the second feed rollers 15 send the yarn Y twisted by each twisting unit 14 toward the combining unit 16.
- the second feed rollers 15 are provided below the twisting unit 14 in the main base 5.
- the conveyance speed of conveying the yarn Y by the second feed rollers 15 is higher than the conveyance speed of conveying the yarn Y by the first feed rollers 11.
- the yarn Y is therefore drawn between the first feed rollers 11 and the second feed rollers 15.
- the combining unit 16 is an interlacing unit (interlacing device) configured to combine two yarns Y with each other by injecting air thereto. As detailed later, a yarn Y twisted by one twisting unit 14A on the upper stage and a yarn Y twisted by one twisting unit 14B on the lower stage are combined with each other by the combining unit 16 into a single yarn Y.
- the combining unit 16 is provided below the second feed rollers 15 in the main base 5.
- the third feed rollers 17 send the combined yarn Y processed by the combining unit 16 toward the second heater 18.
- the third feed rollers 17 are provided below the combining unit 16 in the main base 5.
- the conveyance speed of conveying the yarn Y by the third feed rollers 17 is lower than the conveyance speed of conveying the yarn Y by the second feed rollers 15.
- the yarn Y is therefore relaxed between the second feed rollers 15 and the third feed rollers 17.
- the second heater 18 heats the yarn Y sent from the third feed rollers 17.
- the second heater 18 is provided below the third feed rollers 17 in the main base 5, and extends in the vertical direction.
- the fourth feed rollers 19 send the yarn Y thermally treated by the second heater 18 to each winding device 20.
- the fourth feed rollers 19 are provided in the vicinity of the lower portion of the winding base 6.
- the conveyance speed of conveying the yarn Y by the fourth feed rollers 19 is lower than the conveyance speed of conveying the yarn Y by the third feed rollers 17.
- the yarn Y is therefore relaxed between the third feed rollers 17 and the fourth feed rollers 19.
- the yarn Y drawn between the first feed rollers 11 and the second feed rollers 15 is twisted by each twisting unit 14.
- the twist-stopping guide 12 prevents the twist of the yarn Y formed by the twisting unit 14 from being propagated to the upstream in the yarn running direction, and then the first heater 13 thermally sets the twist of the yarn Y.
- Each of the combining unit 16 and the second heater 18 processes the relaxed yarn Y.
- a suction 23 is provided below the third feed rollers 17 in the main base 5 so as to face the working space 8.
- the suction 23 is used to temporarily retain the yarn Y in the yarn threading.
- each twisting unit 14 includes the twisting units 14A on the upper stage and the twisting units 14B on the lower stage. These units are structurally identical with each other.
- FIG. 2 is a front view of one twisting unit 14, i.e., shows the twisting unit 14 from the working space 8.
- FIG. 3 shows the twisting unit 14 from above.
- the twisting unit 14 is a pin-type twisting unit configured to twist the yarn Y running inside the cylindrical pin 41 by axially rotating the pin 41.
- the twisting unit 14 includes two rotational shafts 43 and 44 each of which extends in the vertical direction and which are aligned in the arrangement direction.
- the rotational shafts 43 and 44 are rotatably supported by the base 42 via unillustrated bearings.
- upper and lower rollers 45 and 46 are fixed.
- upper and lower rollers 47 and 48 are fixed. Both of the rollers 45 and 47 are provided at the same position in the vertical direction, and are slightly spaced apart from each other not to make contact with each other.
- Both of the rollers 46 and 48 are provided at the same position in the vertical direction, and are slightly spaced apart from each other not to make contact with each other.
- the rotational shaft 43 is rotationally and axially driven by the motor 54.
- the pin 41 is a cylindrical member extending in the vertical direction.
- the yarn Y runs in the pin 41.
- a large-diameter magnetic portion 41a is formed to oppose later-described magnets 49 and 50.
- a wound portion 41b is internally fixed to extend in a direction orthogonal to the axial direction of the pin 41.
- the yarn Y is wound once around the wound portion 41b. As the pin 41 is rotationally and axially driven, the yarn Y is twisted.
- the magnets 49 and 50 are fixed to the base 42 via a bracket 51.
- the magnet 49 is provided between the roller 45 and the roller 46.
- the magnet 50 is provided between the roller 47 and the roller 48.
- the pin 41 is inserted between the roller 45 and the roller 47 (between the roller 46 and the roller 48)
- the magnetic portion 41a of the pin 41 opposes the magnets 49 and 50. Because of this, the pin 41 is retained by the magnets 49 and 50 while making contact with the circumferential surfaces of the rollers 45 to 48.
- the pin 41 is not fixed to another member, and is retained only by the magnetic forces of the magnets 49 and 50.
- a ring-shaped guide member 52 is provided immediately above the pin 41.
- the guide member 52 is fixed to the base 42 via an unillustrated bracket.
- a pipe-shaped guide member 53 is provided immediately below the pin 41 to extend in the vertical direction. The guide member 53 is fixed to the base 42.
- the rollers 45 and 46 fixed to the rotational shaft 43 are rotated in the same direction with each other. Because of this, the pin 41 in contact with the circumferential surfaces of the rollers 45 and 46 is rotationally driven in the direction opposite to the rotation of the rollers 45 and 46 by the friction force. In addition to that, the rollers 47 and 48 in contact with the circumferential surface of the pin 41 are rotationally driven in the direction opposite to the rotation of the pin 41 by the friction force. The pin 41 is rotated while being sandwiched by the rollers 45 and 46 and the rollers 47 and 48, so as to twist the yarn Y running inside the pin 41.
- FIG. 4 shows the twisting units 14A on the upper stage and the twisting units 14B on the lower stage from the working space 8.
- FIG. 5(a) shows the twisting units 14A on the upper stage from above
- FIG. 5(b) shows the twisting units 14B on the lower stage from above.
- FIGs. 5(a) and 5(b) are identical with each other in coordinates, except the vertical direction.
- a direction orthogonal to both the vertical direction and the arrangement direction is defined as a depth direction.
- the working space 8 side in the depth direction is defined as the near side, and the side opposite to the near side is defined as the far side.
- yarns Y are combined with each other by the combining unit 16 into one yarn Y.
- These yarns Y to be combined are: a yarn Y to which an S-twist is added by one twisting unit 14A on the upper stage; and a yarn Y to which a Z-twist is added by one twisting unit 14B on the lower stage which is provided below and to the left of the one twisting unit 14A. Because of this, the total number of the twisting units 14 is twice as many as the number of the winding devices 20. If the twisting units 14 are provided to form a single line in the arrangement direction, the size of the draw texturing machine 1 in the arrangement direction is disadvantageously increased.
- twisting units 14 are provided on the upper stage and the lower stage and each twisting unit 14A on the upper stage is arranged to partially overlap each twisting unit 14B on the lower stage in the arrangement direction, the twisting units 14 are densely disposed in the arrangement direction. Because of this, the increase in the size of the draw texturing machine 1 in the arrangement direction is suppressed.
- the twisting units 14A on the upper stage are fixed to a supporting member 25 while being aligned at regular intervals (pitches A) in the arrangement direction.
- the twisting units 14B on the lower stage are fixed to a supporting member 26 while being aligned at regular intervals (pitches A) in the arrangement direction.
- the position of each twisting unit 14A on the upper stage is deviated from the position of each twisting unit 14B on the lower stage by a half of one interval (i.e., A/2), and the twisting units 14A on the upper stage and the twisting units 14B on the lower stage are alternately arranged in the arrangement direction.
- the twisting units 14A on the upper stage and the twisting units 14B on the lower stage are provided at the same position in the depth direction.
- Each twisting unit 14A on the upper stage is provided at the middle between each two adjacent twisting units 14B on the lower stage in the arrangement direction.
- Each twisting unit 14B on the lower stage is provided at the middle between each two adjacent twisting units 14A on the upper stage in the arrangement direction. Therefore, each yarn Y twisted by each twisting unit 14A on the upper stage passes between each two adjacent twisting units 14B on the lower stage. In addition to that, each yarn Y twisted by each twisting unit 14B on the lower stage passes between each two adjacent twisting units 14A on the upper stage. In other words, each yarn Y passes through a narrow gap (e.g., space the width of which is 50 mm or less) between each two adjacent twisting units 14 in the arrangement direction.
- a narrow gap e.g., space the width of which is 50 mm or less
- the yarn threading is simultaneously performed to two twisting units 14 configured to twist two yarns Y which are to be combined with each other by the combining unit 16.
- the yarn threading is simultaneously performed to one twisting unit 14A on the upper stage and to one twisting unit 14B on the lower stage, which is provided below and to the left of the one twisting unit 14A.
- a yarn Y twisted by one twisting unit 14A on the upper stage may be combined with a yarn Y twisted by one twisting unit 14B on the lower stage which is provided below and to the right of the one twisting unit 14A.
- the yarn threading is simultaneously performed to the one twisting unit 14A on the upper stage and to the one twisting unit 14B on the lower stage, which is provided below and to the right of the one twisting unit 14A as described above.
- the one twisting unit 14A and the one twisting unit 14B are activated after the yarns Y are sucked and retained by the suction 23.
- the yarn threading is performed to another pair of another twisting unit 14A and another twisting unit 14B which are provided to the right of the one pair of the one twisting unit 14A and the one twisting unit 14B.
- the yarn threading may be performed in order from the rightmost pair of the twisting units 14A and 14B.
- the yarn Y which is being threaded to the one twisting unit 14A on the upper stage (or the one twisting unit 14B on the lower stage) may be disadvantageously swung because of the wind generated by the rotation of the rollers 45 to 48 of the another twisting unit 14B on the lower stage (or the another twisting unit 14A on the upper stage) which is provided to the left of the one twisting unit 14A (or the one twisting unit 14B) as described above.
- the yarn swing tends to be significant in the pin-type twisting units 14 for the reasons as follows.
- the sucking force of the suction 23 scarcely influences on the upstream of the wound portion 41b of the pin 41 in the yarn running direction.
- the tension of the upstream part of the yarn Y is almost zero in the yarn threading, with the result that the yarn Y is easily swung by the influence of the wind.
- the upstream part of the yarn Y is provided upstream of the one twisting unit 14 in the yarn running direction.
- the upstream part of the yarn Y which is provided upstream of the one twisting unit 14B on the lower stage in the yarn running direction passes between two adjacent twisting units 14A on the upper stage. Therefore, the yarn swing is particularly conspicuous in such a case.
- the occurrence of the yarn swing may bring about the problem such as the difficulty in the yarn threading, the failure in the yarn threading, and the unintentional winding of the yarn Y around the rotating rollers 45 to 48 while the yarn Y is being threaded.
- These problems may occur not only when the yarn threading is performed for the first time in order to prepare the activation the draw texturing machine 1 but also when the yarn threading is performed because the yarn Y is broken while the draw texturing machine 1 is in operation.
- the broken yarn Y may be unintentionally wound around the rotating rollers 45 to 48.
- each partition 60 is provided at the middle between two adjacent twisting units 14 in the arrangement direction on each of the upper stage and the lower stage.
- FIG. 6 is a perspective view of the partition 60.
- FIG. 7 is a cross section of the partition 60 taken along the horizontal plane, i.e., a cross section of a later-described yarn guide 62 taken along the horizontal plane.
- FIG. 8 is a cross section of the partition 60 taken along the vertical plane, i.e., a cross section of the partition 60 taken along the VIII-VIII line in FIG. 7 .
- FIG. 8 shows the partition 60 attached to the supporting member 25 on the upper stage.
- the structure of the partition 60 shown in FIG. 8 is identical with that of each partition 60 attached to the supporting member 26 on the lower stage.
- each partition 60 includes a main body 61 made of resin and the yarn guide 62 which is made of ceramic and which is embedded in the main body 61 by insert molding.
- the main body 61 is arranged so that a wall portion 63, a guide supporting portion 64, an engaging portion 65, and press portions 66 are integrally formed by resin molding.
- the wall portion 63 extends along the yarn running direction (direction substantially corresponds to the vertical direction in the present embodiment). In the yarn running direction, the wall portion 63 extends at least over the range in which the rollers 45 to 48 of each twisting unit 14 are provided, i.e., the range from the upper end of the roller 45 (47) to the lower end of the roller 46 (48).
- the wall portion 63 has a U-shaped cross section orthogonal to the yarn running direction.
- the partition 60 is provided so that a part of the periphery of the yarn Y is surrounded by the wall portion 63.
- the wall portion 63 of the partition 60 is provided between a yarn path of the yarn Y passing one twisting unit 14A on the upper stage (or twisting unit 14B on the lower stage) and the rollers 45 to 48 of one twisting unit 14B on the lower stage (or twisting unit 14A on the upper stage), which is closest to the yarn path.
- An opening 67 is provided in a place where the wall portion 63 is not formed in the partition 60.
- the opening 67 faces the working space 8, and enables the operator to easily perform the yarn threading to the yarn guide 62 via the opening 67 from the working space 8.
- the guide supporting portion 64 is a member which is formed at a lower end portion of the wall portion 63 and formed on the inner side of the wall portion 63, and into which the yarn guide 62 is inserted.
- the guide supporting portion 64 is, when viewed from above, a C-shaped member in which an inlet 64a is formed as shown in FIG. 7 .
- the inlet 64a functions as a passage for introducing the yarn Y, which is inserted from the opening 67, to the yarn guide 62.
- the engaging portion 65 protrudes downward from the lower end of the wall portion 63 so as to be engageable with an attachment hole 25a formed in the supporting member 25.
- the engaging portion 65 has flexibility and a U-shaped cross section orthogonal to the vertical direction.
- two hook portions 65a are formed to oppose each other in the arrangement direction.
- the hook portion 65a protrudes outward from the peripheral edge of the attachment hole 25a.
- the engaging portion 65 and the attachment hole 25a are in an engagement state, i.e., are engaged with each other.
- the hook portion 65a is pressed inward, the engaging portion 65 is deformed so as to be in a cancellation state in which the engagement between the engaging portion 65 and the attachment hole 25a is cancelled.
- the operator presses down the engaging portion 65 to the attachment hole 25a. Because of this, an inclined portion 65b of the hook portion 65a is pressed by the peripheral edge of the attachment hole 25a so that the engaging portion 65 is deformed and inserted into the attachment hole 25a. As the original shape of the engaging portion 65 is recovered, the hook potion 65a protrudes outward from the peripheral edge of the attachment hole 25a so that the engaging portion 65 is in the engagement state. In order to remove the partition 60 from the attachment hole 25a, the operator presses two hook portions 65a inward. Because of this, the engaging portion 65 is in the cancellation state so that the partition 60 can be pulled upward from the attachment hole 25a.
- the attachment hole 25a is connected to a cutout portion 25b (see FIG. 5 ) which is formed to extend from the near side of the supporting member 25 toward the attachment hole 25a along the depth direction.
- the yarn Y is inserted from the cutout portion 25b by the operator in the working space 8.
- the press portions 66 are formed as two members which are provided to oppose each other in the arrangement direction and each of which protrudes outward from the outer circumferential surface of the lower end portion of the wall portion 63.
- Each press portion 66 is shaped to be bent downward. Because of this, when the partition 60 is attached to the attachment hole 25a, the partition 60 is biased upward by the press portions 66. As a result, each hook portion 65a is pressed onto the lower surface of the supporting member 25 so as to reduce the rattle of the partition 60.
- the yarn guide 62 is, when viewed from above, a C-shaped member in which an inlet 62a is formed as shown in FIG. 7 .
- the inlet 62a of the yarn guide 62 communicates with the inlet 64a of the guide supporting portion 64.
- the yarn Y is threaded to the yarn guide 62 via the inlets 64a and 62a.
- the yarn guide 62 is provided on the inner side of the wall portion 63, i.e., on the far side as compared to the near-side ends of the wall portion 63 in the depth direction. Because of this, the yarn Y is certainly provided inside the wall portion 63 by being threaded to the yarn guide 62.
- the yarn threading is performed after the yarn Y is threaded to the yarn guide 62 of the partition 60 provided immediately above the one twisting unit 14B. Because of this, even when the wind is generated by the rotation of the rollers 45 to 48 of one twisting unit 14A adjacent to a yarn path of the yarn Y, the wall portion 63 of the partition 60 suppresses the influence of the wind on the yarn Y. Even if the wind enters the inner side of the wall portion 63 from the opening 67, the occurrence of the yarn swing causing an adverse effect on the yarn threading is avoided because the yarn Y is threaded to the yarn guide 62. In addition to that, the presence of the wall portion 63 suppresses the unintentional winding of the yarn Y around the rollers 45 to 48 at the time of the yarn breakage.
- plural twisting units 14 each of which includes the rollers 45 to 48 (corresponding to rotating members of the present invention) rotated at the time of twisting the yarn Y are aligned in a predetermined arrangement direction and provided on plural stages.
- the partition 60 is provided between a yarn path of the yarn Y passing one twisting unit 14 on one of the plural stages and the rollers 45 and 48 of another twisting unit 14 on another of the plural stages, which is close to the yarn path. This suppresses the influence of the wind, generated by the rotation of the rollers 45 to 48, on the yarn Y. The yarn swing is therefore suppressed, and hence the yarn threading is easily performed.
- the presence of the partition 60 suppresses the unintentional winding of the yarn Y around the rollers 45 to 48 in the yarn breakage.
- the twisting units 14 include the twisting units 14 on the upper stage and the twisting units 14 on the lower stage. Because the twisting units 14 are provided on two stages, a space required for providing the twisting units 14 is reduced in the vertical direction.
- the twisting units 14A on the upper stage and the twisting units 14B on the lower stage are alternately arranged in the arrangement direction, and each yarn Y twisted by each twisting unit 14A on the upper stage passes between two adjacent twisting units 14B on the lower stage while each yarn Y twisted by each twisting unit 14B on the lower stage passes between two adjacent twisting units 14A on the upper stage.
- the partition 60 is provided between each two adjacent twisting units 14 on each of the upper stage and the lower stage.
- the partition 60 includes the wall portion 63 surrounding at least a part of the periphery of the yarn Y. Because the wall portion 63 surrounds at least a part of the periphery of the yarn Y as described above, it is possible to further effectively suppress the yarn swing due to the wind from the rollers 45 to 48 and the unintentional winding of the yarn Y around the rollers 45 to 48.
- the wall portion 63 is shaped to surround only a part of the periphery of the yarn Y.
- the wall portion 63 is formed as a cylindrical member surrounding the entire periphery of the yarn Y, it becomes difficult to thread the yarn Y to the inside of the cylindrical wall portion 63, even though it is possible to improve the effect of suppressing the yarn swing due to the wind from the rollers 45 to 48 and the unintentional winding of the yarn Y around the rollers 45 to 48.
- the yarn Y is easily threaded to the inner side of the wall portion 63 via the opening 67 provided in a place where the wall portion 63 is not provided in the partition 60.
- the wall portion 63 extends over the range in which the rollers 45 to 48 are provided in the yarn running direction. Because the partition 60 is arranged as described above, it is possible to further effectively suppress the yarn swing due to the wind from the rollers 45 to 48 and the unintentional winding of the yarn Y around the rollers 45 to 48.
- the partition 60 and the yarn guide 62 are integrally formed.
- the yarn guide 62 may be provided in the vicinity of each twisting unit 14. Meanwhile, when the yarn guide 62 and the partition 60 are integrally formed, a step of providing the yarn guide 62 is unnecessary.
- the yarn guide 62 is embedded in the partition 60 by insert molding. Because the yarn guide 62 is embedded in the partition 60 by the insert molding, the partition 60 and the yarn guide 62 are easily and certainly integrated even when the partition 60 and the yarn guide 62 are made of different materials.
- the partition 60 includes the engaging portion 65 which is flexible and engageable with the attachment hole 25a (corresponding to an attached portion of the present invention) to which the partition member is attached, and the engaging portion 65 can be deformed to be switchable between the engagement state in which the engaging portion 65 and the attachment hole 25a are engageable with each other and the cancellation state in which the engagement between the engaging portion 65 and the attachment hole 25a is cancelled.
- the partition 60 is easily attached to and detached from the attachment hole 25a only in such a way that the operator causes the engaging portion 65 to be deformed.
- each twisting unit 14 includes the rollers 45 to 48 and the cylindrical pin 41 in contact with the circumferential surfaces of the rollers 45 to 48, and is a pin-type twisting unit configured to twist each yarn Y running inside the pin 41 in such a way that the rollers 45 to 48 are rotated to rotate the pin 41.
- the twisting unit 14 is a pin-type twisting unit, the tension of the yarn Y is almost zero in the yarn threading so that the yarn swing easily occurs. Therefore, providing the partition 60 is especially effective.
- the present invention may be applied to a draw texturing machine including a friction-type twisting unit or a belt-type twisting unit.
- a yarn runs while making contact with the circumferential surfaces of plural discs which are spirally arranged. The discs are rotated so that the yarn is twisted. In this case, the discs correspond to rotating members of the present invention.
- the belt-type twisting unit two endless belts are provided to sandwich a yarn. Each endless belt is rotated so that the yarn is twisted. In this case, the two endless belts correspond to rotating members of the present invention.
- the plural twisting units 14 include the twisting units 14 on the upper stage and the twisting units 14 on the lower stage.
- the plural twisting units 14 may be provided on three or more stages.
- the twisting units 14A on the upper stage and the twisting units 14B on the lower stage are provided at the same position in the depth direction, and are alternately arranged in the arrangement direction.
- the twisting units 14A on the upper stage and the twisting units 14B on the lower stage may be provided at different positions from each other in the depth direction.
- the twisting units 14A on the upper stage and the twisting units 14B on the lower stage may be provided at the same positions as each other in the arrangement direction.
- a partition may be a plate member which is substantially vertical to the horizontal plane and which is provided between a yarn Y and one twisting unit 14 closest to the yarn Y.
- the wall portion 63 of the partition 60 may be cylindrical in shape.
- each partition 60 may be fixed to each of the supporting members 25 and 26 by a bolt, etc.
- the partition 60 and the yarn guide 62 are integrally formed by the insert molding.
- the partition 60 and the yarn guide 62 may be integrally provided by a method which is not the insert molding.
- the yarn guide may be provided to be independent from the partition.
- the specific arrangement of the yarn guide 62 may be different from that in the embodiment above.
- the yarn guide 62 may not be a C-shaped member and may be a pipe-shaped member, a snail guide, a dog-tail guide, or a hook guide, etc.
- the shape of the guide supporting portion 64 may also be suitably changeable in accordance with the specific shape of the yarn guide 62.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
- The present invention relates to a draw texturing machine in which plural twisting units configured to twist yarns are aligned in a predetermined arrangement direction and provided on plural stages.
- As shown in Patent Literature 1 (Chinese Unexamined Patent Publication No.
1036668614 FIG. 3 andFIG. 4 in Patent Literature 1). Because the twisting units are provided on plural stages, a large number of the twisting units can be provided in the arrangement direction. - A pin-type twisting unit, a friction-type twisting unit, and a belt-type twisting unit have been well known as the twisting units. The pin-type twisting unit includes plural rollers and a cylindrical pin in contact with the circumferential surfaces of the rollers. The rollers are rotated to rotate the pin, with the result that a yarn running inside the pin is twisted. In regard to the friction-type twisting unit, a yarn runs while making contact with the circumferential surfaces of plural discs which are spirally arranged. The discs are rotated so that the yarn is twisted. In regard to the belt-type twisting unit, two endless belts are provided to sandwich a yarn. Each endless belt is rotated so that the yarn is twisted. In all types of the twisting units, rotating members such as a roller, a disc, and an endless belt are rotated so that yarns are twisted.
- In the above-described draw texturing machine in which the twisting units are provided on plural stages, for example, the yarns may pass close to the twisting units on the upper stage when yarns are threaded to the twisting units on the lower stage. When the rotation of rotating members (such as roller, disc, and endless belt) of the twisting units on the upper stage has already been started at this time, the yarns may be disadvantageously swung because of an influence of the wind, generated by the rotating members, so that the yarn threading becomes difficult or the yarn threading fails. In addition to that, when yarn breakage occurs while the draw texturing machine is in operation, the broken yarns may be unintentionally wound around the rotating members.
- The present invention has been done to solve the problem above, and objects of the present invention are, firstly, to facilitate yarn threading and, secondly, to suppress an unintentional winding of yarns around rotating members at the time of yarn breakage in a draw texturing machine in which plural twisting units are provided on plural stages.
- A draw texturing machine of the present invention is a draw texturing machine comprising plural twisting units each of which includes a rotating member rotated at the time of twisting a yarn and which are aligned in a predetermined arrangement direction and provided on plural stages, and a partition is provided between a yarn path of the yarn passing one of the plural twisting units on one of the plural stages and the rotating member of another one of the plural twisting units on another stage of the plural stages, and the another one of the plural twisting units is close to the yarn path.
- According to the present invention, because the partition is provided between the yarn path and the rotating member of one twisting unit, it is possible to suppress the influence of the wind, generated by the rotation of the rotating member, on the yarn. The yarn swing is therefore suppressed, and hence the yarn threading is easily performed. In addition to that, the presence of the partition suppresses the unintentional winding of the yarn around the rotating member in the yarn breakage.
- In the present invention, preferably, the plural twisting units are provided to form two stages which are an upper stage and a lower stage.
- Because the twisting units are provided on two stages, a space required for providing the twisting units is reduced in the vertical direction.
- In the present invention, preferably, twisting units on the upper stage and other twisting units on the lower stage are alternately arranged in the arrangement direction, the yarn twisted by each of the twisting units on the upper stage passes between two adjacent ones of the other twisting units on the lower stage, the yarn twisted by each of the other twisting units on the lower stage passes between two adjacent ones of the twisting units on the upper stage, and the partition is provided between two adjacent ones of the plural twisting units on each of the upper stage and the lower stage.
- When the draw texturing machine is structured so that the yarn passes between two twisting units, a distance between the yarn and each of the two twisting units is decreased, with the result that the yarn swing due to the wind from the rotating member and the unintentional winding of the yarn around the rotating member easily occur. The effect of providing the partition is therefore conspicuous in such a case.
- In the present invention, preferably, the partition includes a wall portion surrounding at least a part of the periphery of the yarn.
- Because the wall portion surrounds at least a part of the periphery of the yarn as described above, it is possible to further effectively suppress the yarn swing due to the wind from the rotating member and the unintentional winding of the yarn around the rotating member.
- In the present invention, preferably, the wall portion is shaped to surround only a part of the periphery of the yarn.
- When the wall portion is formed as a cylindrical member surrounding the entire periphery of the yarn, it becomes difficult to thread the yarn to the inside of the cylindrical wall portion, even though it is possible to increase the effect of suppressing the yarn swing due to the wind from the rotating member and the unintentional winding of the yarn around the rotating member. Meanwhile, when the wall portion is shaped to surround only a part of the periphery of the yarn, the yarn is easily threaded to the inner side of the wall portion via the opening provided in a place where the wall portion is not provided in the partition.
- In the present invention, preferably, the wall portion extends over a range in which the rotating member is provided in a yarn running direction.
- Because the partition is arranged as described above, it is possible to further effectively suppress the yarn swing due to the wind from the rotating member and the unintentional winding of the yarn around the rotating member.
- In the present invention, preferably, the partition and a yarn guide are integrally formed.
- In order to define the yarn path, the yarn guide may be provided in the vicinity of each twisting unit. Meanwhile, when the yarn guide and the partition are integrally formed, a step of providing the yarn guide is unnecessary.
- In the present invention, preferably, the yarn guide is embedded in the partition by insert molding.
- Because the yarn guide is embedded in the partition by the insert molding, the partition and the yarn guide are easily and certainly integrated even when the partition and the yarn guide are made of different materials.
- In the present invention, preferably, the partition includes an engaging portion which is flexible and engageable with an attached portion to which the partition is attached, and the engaging portion is deformable between an engagement state in which the engaging portion and the attached portion are engaged with each other and a cancellation state in which the engagement between the engaging portion and the attached portion is cancelled.
- With this arrangement, the partition is easily attached to and detached from the attached portion only in such a way that the operator causes the engaging portion to be deformed.
- In the present invention, preferably, each of the plural twisting units includes plural rollers each of which is the rotating member and a cylindrical pin in contact with the circumferential surfaces of the rollers, and each of the plural twisting units is a pin-type twisting unit configured to twist the yarn running inside the pin in such a way that the rollers are rotated so that to rotate the pin is rotated.
- As described later, when each twisting unit is a pin-type twisting unit, the tension of the yarn is almost zero in the yarn threading so that the yarn swing easily occurs. Therefore, providing the partition is especially effective.
-
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FIG. 1 shows the overall structure of a draw texturing machine related to an embodiment. -
FIG. 2 is a front view of one of twisting units. -
FIG. 3 shows the one of the twisting units from above. -
FIG. 4 shows the twisting units on an upper stage and the twisting units on a lower stage from a working space. -
FIG. 5(a) shows the twisting units on the upper stage from above, andFIG. 5(b) shows the twisting units on the lower stage from above. -
FIG. 6 is a perspective view of a partition. -
FIG. 7 is a cross section of the partition taken along a horizontal plane. -
FIG. 8 is a cross section of the partition taken along a vertical plane. - The following will describe an embodiment of the present invention with reference to figures.
-
FIG. 1 shows the overall structure of a draw texturing machine 1 related to the present embodiment. As shown inFIG. 1 , the draw texturing machine 1 includes ayarn supplying unit 2 configured to supply yarns Y, aprocessing part 3 configured to false-twist the yarns Y supplied from theyarn supplying unit 2, and a winding unit 4 configured to wind the yarns Y false-twisted by theprocessing part 3 so as to form packages P. - The
yarn supplying unit 2 includes acreel stand 10 retaining yarn supply packages Q, and supplies the yarns Y to theprocessing part 3. In theprocessing part 3, the following members are provided in this order from the upstream in the yarn running direction along a yarn path:first feed rollers 11; a twist-stopping guide 12; afirst heater 13; at least one twisting unit 14 (14A and 14B) ;second feed rollers 15; a combiningunit 16;third feed rollers 17; asecond heater 18; andfourth feed rollers 19. In the winding unit 4, the yarns Y false-twisted by theprocessing part 3 are wound by windingdevices 20 so as to form packages P. - In the draw texturing machine 1, the yarns Y run while being aligned in a direction vertical to the sheet of
FIG. 1 (hereinafter, it is referred to as an arrangement direction). Plural sets of the above-describedmembers 11 to 19 are aligned in the arrangement direction to correspond to the yarns Y. With this arrangement, the yarns Y can be simultaneously false-twisted in the draw texturing machine 1. - The draw texturing machine 1 includes a
main base 5 and awinding base 6 which oppose each other and are spaced apart from each other in the left-right direction ofFIG. 1 . Themain base 5 and thewinding base 6 are provided to extend in the arrangement direction. A supportingframe 7 is provided between the upper portion of themain base 5 and the upper portion of the windingbase 6. The plural sets of the above-describedmembers 11 to 19 constituting theprocessing part 3 are mainly attached to themain base 5 and the supportingframe 7. The yarns Y run mainly around the workingspace 8 surrounded by themain base 5, the windingbase 6, and the supportingframe 7. An operator performs operations such as yarn threading in the workingspace 8. - The following will describe the structure of the
yarn processing part 3. Thefirst feed rollers 11 send a yarn Y supplied from theyarn supplying unit 2 to thefirst heater 13. Thefirst feed rollers 11 are provided below the supportingframe 7. Thefirst feed rollers 11 include a drive roller and a driven roller, and the yarn Y is sent while being sandwiched by the drive roller and the driven roller. Thesecond feed rollers 15, thethird feed rollers 17, and thefourth feed rollers 19 are similarly arranged. - The twist-stopping
guide 12 prevents twist of the yarn Y formed by each twistingunit 14 from being propagated to the upstream in the yarn running direction of the twist-stoppingguide 12. The twist-stoppingguide 12 is provided between thefirst feed rollers 11 and thefirst heater 13 in the yarn running direction. The twist-stoppingguide 12 is attached to ashifter 22 which is movable along aguide rail 21 extending roughly in the vertical direction. Theshifter 22 is movable between a yarn threading position (indicated by dashed lines inFIG. 1 ) in the vicinity of thefirst feed rollers 11 and an operation position (indicated by full lines inFIG. 1 ) immediately above thefirst heater 13. The operator performs the yarn threading to the twist-stoppingguide 12 while theshifter 22 is at the yarn threading position, and theshifter 22 is moved to the operation position after the yarn threading. Therefore, when the draw texturing machine 1 is in operation, the twist-stoppingguide 12 is immediately above thefirst heater 13. - The
first heater 13 heats the yarn Y twisted by each twistingunit 14. Thefirst heater 13 is provided at an upper end portion of themain base 5, and extends in the vertical direction. - Each twisting
unit 14 twists the yarn Y. Each twistingunit 14 is provided immediately below thefirst heater 13 in themain base 5. Therefore, a yarn path from the twist-stoppingguide 12 to each twistingunit 14 via thefirst heater 13 is along the vertical direction. The twistingunits 14 include the twistingunits 14 on an upper stage and the twistingunits 14 on a lower stage. Hereinafter, the twistingunits 14 on the upper stage are referred to as twistingunits 14A, and the twistingunits 14 on the lower stage are referred to as twistingunits 14B. The details of the twistingunits 14 will be given later. - The
second feed rollers 15 send the yarn Y twisted by each twistingunit 14 toward the combiningunit 16. Thesecond feed rollers 15 are provided below the twistingunit 14 in themain base 5. The conveyance speed of conveying the yarn Y by thesecond feed rollers 15 is higher than the conveyance speed of conveying the yarn Y by thefirst feed rollers 11. The yarn Y is therefore drawn between thefirst feed rollers 11 and thesecond feed rollers 15. - The combining
unit 16 is an interlacing unit (interlacing device) configured to combine two yarns Y with each other by injecting air thereto. As detailed later, a yarn Y twisted by onetwisting unit 14A on the upper stage and a yarn Y twisted by onetwisting unit 14B on the lower stage are combined with each other by the combiningunit 16 into a single yarn Y. The combiningunit 16 is provided below thesecond feed rollers 15 in themain base 5. - The
third feed rollers 17 send the combined yarn Y processed by the combiningunit 16 toward thesecond heater 18. Thethird feed rollers 17 are provided below the combiningunit 16 in themain base 5. The conveyance speed of conveying the yarn Y by thethird feed rollers 17 is lower than the conveyance speed of conveying the yarn Y by thesecond feed rollers 15. The yarn Y is therefore relaxed between thesecond feed rollers 15 and thethird feed rollers 17. - The
second heater 18 heats the yarn Y sent from thethird feed rollers 17. Thesecond heater 18 is provided below thethird feed rollers 17 in themain base 5, and extends in the vertical direction. - The
fourth feed rollers 19 send the yarn Y thermally treated by thesecond heater 18 to each windingdevice 20. Thefourth feed rollers 19 are provided in the vicinity of the lower portion of the windingbase 6. The conveyance speed of conveying the yarn Y by thefourth feed rollers 19 is lower than the conveyance speed of conveying the yarn Y by thethird feed rollers 17. The yarn Y is therefore relaxed between thethird feed rollers 17 and thefourth feed rollers 19. - In the
processing part 3 arranged as described above, the yarn Y drawn between thefirst feed rollers 11 and thesecond feed rollers 15 is twisted by each twistingunit 14. The twist-stoppingguide 12 prevents the twist of the yarn Y formed by the twistingunit 14 from being propagated to the upstream in the yarn running direction, and then thefirst heater 13 thermally sets the twist of the yarn Y. Each of the combiningunit 16 and thesecond heater 18 processes the relaxed yarn Y. - A
suction 23 is provided below thethird feed rollers 17 in themain base 5 so as to face the workingspace 8. Thesuction 23 is used to temporarily retain the yarn Y in the yarn threading. - The following will describe the structure of each twisting
unit 14. As described above, the twistingunits 14 include the twistingunits 14A on the upper stage and the twistingunits 14B on the lower stage. These units are structurally identical with each other.FIG. 2 is a front view of one twistingunit 14, i.e., shows the twistingunit 14 from the workingspace 8.FIG. 3 shows the twistingunit 14 from above. The twistingunit 14 is a pin-type twisting unit configured to twist the yarn Y running inside thecylindrical pin 41 by axially rotating thepin 41. - The twisting
unit 14 includes tworotational shafts rotational shafts base 42 via unillustrated bearings. To therotational shaft 43, upper andlower rollers rotational shaft 44, upper andlower rollers rollers rollers rotational shaft 43 is rotationally and axially driven by themotor 54. - The
pin 41 is a cylindrical member extending in the vertical direction. The yarn Y runs in thepin 41. At an intermediate portion of thepin 41, a large-diametermagnetic portion 41a is formed to oppose later-describedmagnets pin 41, awound portion 41b is internally fixed to extend in a direction orthogonal to the axial direction of thepin 41. The yarn Y is wound once around thewound portion 41b. As thepin 41 is rotationally and axially driven, the yarn Y is twisted. - The
magnets base 42 via abracket 51. Themagnet 49 is provided between theroller 45 and theroller 46. Themagnet 50 is provided between theroller 47 and theroller 48. As thepin 41 is inserted between theroller 45 and the roller 47 (between theroller 46 and the roller 48), themagnetic portion 41a of thepin 41 opposes themagnets pin 41 is retained by themagnets rollers 45 to 48. Thepin 41 is not fixed to another member, and is retained only by the magnetic forces of themagnets - A ring-shaped
guide member 52 is provided immediately above thepin 41. Theguide member 52 is fixed to thebase 42 via an unillustrated bracket. A pipe-shapedguide member 53 is provided immediately below thepin 41 to extend in the vertical direction. Theguide member 53 is fixed to thebase 42. - As the
rotational shaft 43 is rotated in the direction indicated by an arrow inFIG. 3 by themotor 54, therollers rotational shaft 43 are rotated in the same direction with each other. Because of this, thepin 41 in contact with the circumferential surfaces of therollers rollers rollers pin 41 are rotationally driven in the direction opposite to the rotation of thepin 41 by the friction force. Thepin 41 is rotated while being sandwiched by therollers rollers pin 41. - The following will describe the arrangement of the twisting
units 14.FIG. 4 shows the twistingunits 14A on the upper stage and the twistingunits 14B on the lower stage from the workingspace 8.FIG. 5(a) shows the twistingunits 14A on the upper stage from above, andFIG. 5(b) shows the twistingunits 14B on the lower stage from above.FIGs. 5(a) and 5(b) are identical with each other in coordinates, except the vertical direction. A direction orthogonal to both the vertical direction and the arrangement direction is defined as a depth direction. The workingspace 8 side in the depth direction is defined as the near side, and the side opposite to the near side is defined as the far side. - In the draw texturing machine 1 of the present embodiment, for example, yarns Y are combined with each other by the combining
unit 16 into one yarn Y. These yarns Y to be combined are: a yarn Y to which an S-twist is added by onetwisting unit 14A on the upper stage; and a yarn Y to which a Z-twist is added by onetwisting unit 14B on the lower stage which is provided below and to the left of the onetwisting unit 14A. Because of this, the total number of the twistingunits 14 is twice as many as the number of the windingdevices 20. If the twistingunits 14 are provided to form a single line in the arrangement direction, the size of the draw texturing machine 1 in the arrangement direction is disadvantageously increased. Because the twistingunits 14 are provided on the upper stage and the lower stage and each twistingunit 14A on the upper stage is arranged to partially overlap each twistingunit 14B on the lower stage in the arrangement direction, the twistingunits 14 are densely disposed in the arrangement direction. Because of this, the increase in the size of the draw texturing machine 1 in the arrangement direction is suppressed. - The twisting
units 14A on the upper stage are fixed to a supportingmember 25 while being aligned at regular intervals (pitches A) in the arrangement direction. Similarly, the twistingunits 14B on the lower stage are fixed to a supportingmember 26 while being aligned at regular intervals (pitches A) in the arrangement direction. The position of each twistingunit 14A on the upper stage is deviated from the position of each twistingunit 14B on the lower stage by a half of one interval (i.e., A/2), and the twistingunits 14A on the upper stage and the twistingunits 14B on the lower stage are alternately arranged in the arrangement direction. The twistingunits 14A on the upper stage and the twistingunits 14B on the lower stage are provided at the same position in the depth direction. - Each twisting
unit 14A on the upper stage is provided at the middle between each twoadjacent twisting units 14B on the lower stage in the arrangement direction. Each twistingunit 14B on the lower stage is provided at the middle between each twoadjacent twisting units 14A on the upper stage in the arrangement direction. Therefore, each yarn Y twisted by each twistingunit 14A on the upper stage passes between each twoadjacent twisting units 14B on the lower stage. In addition to that, each yarn Y twisted by each twistingunit 14B on the lower stage passes between each twoadjacent twisting units 14A on the upper stage. In other words, each yarn Y passes through a narrow gap (e.g., space the width of which is 50 mm or less) between each twoadjacent twisting units 14 in the arrangement direction. - The yarn threading is simultaneously performed to two twisting
units 14 configured to twist two yarns Y which are to be combined with each other by the combiningunit 16. As shown inFIG. 4 , the yarn threading is simultaneously performed to onetwisting unit 14A on the upper stage and to onetwisting unit 14B on the lower stage, which is provided below and to the left of the onetwisting unit 14A. In this regard, A yarn Y twisted by onetwisting unit 14A on the upper stage may be combined with a yarn Y twisted by onetwisting unit 14B on the lower stage which is provided below and to the right of the onetwisting unit 14A. In this case, the yarn threading is simultaneously performed to the onetwisting unit 14A on the upper stage and to the onetwisting unit 14B on the lower stage, which is provided below and to the right of the onetwisting unit 14A as described above. When the yarn threading to one pair of onetwisting unit 14A and onetwisting unit 14B is completed, the onetwisting unit 14A and the onetwisting unit 14B are activated after the yarns Y are sucked and retained by thesuction 23. Subsequently, the yarn threading is performed to another pair of anothertwisting unit 14A and anothertwisting unit 14B which are provided to the right of the one pair of the onetwisting unit 14A and the onetwisting unit 14B. Conversely, the yarn threading may be performed in order from the rightmost pair of the twistingunits - Assume that the yarn threading is performed as described above. In this case, when the yarn threading to one pair of one
twisting unit 14A and onetwisting unit 14B is performed, another pair of anothertwisting unit 14A and anothertwisting unit 14B which are provided, as shown inFIG. 4 , to the left of the one pair of the onetwisting unit 14A and the onetwisting unit 14B is already in operation. Therefore, the yarn Y which is being threaded to the onetwisting unit 14A on the upper stage (or the onetwisting unit 14B on the lower stage) may be disadvantageously swung because of the wind generated by the rotation of therollers 45 to 48 of the anothertwisting unit 14B on the lower stage (or the anothertwisting unit 14A on the upper stage) which is provided to the left of the onetwisting unit 14A (or the onetwisting unit 14B) as described above. - Especially, the yarn swing tends to be significant in the pin-
type twisting units 14 for the reasons as follows. Before the yarn threading to onetwisting unit 14 is completed and the onetwisting unit 14 is activated, the sucking force of thesuction 23 scarcely influences on the upstream of thewound portion 41b of thepin 41 in the yarn running direction. For this reason, the tension of the upstream part of the yarn Y is almost zero in the yarn threading, with the result that the yarn Y is easily swung by the influence of the wind. In this regard, the upstream part of the yarn Y is provided upstream of the onetwisting unit 14 in the yarn running direction. When the yarn threading is performed to onetwisting unit 14B on the lower stage, the upstream part of the yarn Y which is provided upstream of the onetwisting unit 14B on the lower stage in the yarn running direction passes between twoadjacent twisting units 14A on the upper stage. Therefore, the yarn swing is particularly conspicuous in such a case. - The occurrence of the yarn swing may bring about the problem such as the difficulty in the yarn threading, the failure in the yarn threading, and the unintentional winding of the yarn Y around the rotating
rollers 45 to 48 while the yarn Y is being threaded. These problems may occur not only when the yarn threading is performed for the first time in order to prepare the activation the draw texturing machine 1 but also when the yarn threading is performed because the yarn Y is broken while the draw texturing machine 1 is in operation. In addition to that, when the yarn breakage occurs while the draw texturing machine 1 is in operation, the broken yarn Y may be unintentionally wound around the rotatingrollers 45 to 48. - In the present embodiment, a
partition 60 is provided to solve the problems described above. As shown inFIG. 4 andFIG. 5 , eachpartition 60 is provided at the middle between twoadjacent twisting units 14 in the arrangement direction on each of the upper stage and the lower stage. -
FIG. 6 is a perspective view of thepartition 60.FIG. 7 is a cross section of thepartition 60 taken along the horizontal plane, i.e., a cross section of a later-describedyarn guide 62 taken along the horizontal plane.FIG. 8 is a cross section of thepartition 60 taken along the vertical plane, i.e., a cross section of thepartition 60 taken along the VIII-VIII line inFIG. 7 .FIG. 8 shows thepartition 60 attached to the supportingmember 25 on the upper stage. The structure of thepartition 60 shown inFIG. 8 is identical with that of eachpartition 60 attached to the supportingmember 26 on the lower stage. - As shown in
FIG. 6 , eachpartition 60 includes amain body 61 made of resin and theyarn guide 62 which is made of ceramic and which is embedded in themain body 61 by insert molding. Themain body 61 is arranged so that awall portion 63, aguide supporting portion 64, an engagingportion 65, and pressportions 66 are integrally formed by resin molding. - The
wall portion 63 extends along the yarn running direction (direction substantially corresponds to the vertical direction in the present embodiment). In the yarn running direction, thewall portion 63 extends at least over the range in which therollers 45 to 48 of each twistingunit 14 are provided, i.e., the range from the upper end of the roller 45 (47) to the lower end of the roller 46 (48). Thewall portion 63 has a U-shaped cross section orthogonal to the yarn running direction. Thepartition 60 is provided so that a part of the periphery of the yarn Y is surrounded by thewall portion 63. In other words, thewall portion 63 of thepartition 60 is provided between a yarn path of the yarn Y passing onetwisting unit 14A on the upper stage (or twistingunit 14B on the lower stage) and therollers 45 to 48 of onetwisting unit 14B on the lower stage (or twistingunit 14A on the upper stage), which is closest to the yarn path. - An
opening 67 is provided in a place where thewall portion 63 is not formed in thepartition 60. Theopening 67 faces the workingspace 8, and enables the operator to easily perform the yarn threading to theyarn guide 62 via theopening 67 from the workingspace 8. - The
guide supporting portion 64 is a member which is formed at a lower end portion of thewall portion 63 and formed on the inner side of thewall portion 63, and into which theyarn guide 62 is inserted. Theguide supporting portion 64 is, when viewed from above, a C-shaped member in which aninlet 64a is formed as shown inFIG. 7 . Theinlet 64a functions as a passage for introducing the yarn Y, which is inserted from theopening 67, to theyarn guide 62. - As shown in
FIG. 8 , the engagingportion 65 protrudes downward from the lower end of thewall portion 63 so as to be engageable with anattachment hole 25a formed in the supportingmember 25. The engagingportion 65 has flexibility and a U-shaped cross section orthogonal to the vertical direction. On the outer circumferential surface of the engagingportion 65, twohook portions 65a are formed to oppose each other in the arrangement direction. When power is not applied to eachhook portion 65a, thehook portion 65a protrudes outward from the peripheral edge of theattachment hole 25a. As a result, the engagingportion 65 and theattachment hole 25a are in an engagement state, i.e., are engaged with each other. Meanwhile, when thehook portion 65a is pressed inward, the engagingportion 65 is deformed so as to be in a cancellation state in which the engagement between the engagingportion 65 and theattachment hole 25a is cancelled. - In order to attach the
partition 60 to theattachment hole 25a, the operator presses down the engagingportion 65 to theattachment hole 25a. Because of this, aninclined portion 65b of thehook portion 65a is pressed by the peripheral edge of theattachment hole 25a so that the engagingportion 65 is deformed and inserted into theattachment hole 25a. As the original shape of the engagingportion 65 is recovered, thehook potion 65a protrudes outward from the peripheral edge of theattachment hole 25a so that the engagingportion 65 is in the engagement state. In order to remove thepartition 60 from theattachment hole 25a, the operator presses twohook portions 65a inward. Because of this, the engagingportion 65 is in the cancellation state so that thepartition 60 can be pulled upward from theattachment hole 25a. In this regard, theattachment hole 25a is connected to acutout portion 25b (seeFIG. 5 ) which is formed to extend from the near side of the supportingmember 25 toward theattachment hole 25a along the depth direction. When the yarn threading is performed to thepartition 60, the yarn Y is inserted from thecutout portion 25b by the operator in the workingspace 8. - As shown in
FIG. 8 , thepress portions 66 are formed as two members which are provided to oppose each other in the arrangement direction and each of which protrudes outward from the outer circumferential surface of the lower end portion of thewall portion 63. Eachpress portion 66 is shaped to be bent downward. Because of this, when thepartition 60 is attached to theattachment hole 25a, thepartition 60 is biased upward by thepress portions 66. As a result, eachhook portion 65a is pressed onto the lower surface of the supportingmember 25 so as to reduce the rattle of thepartition 60. - The
yarn guide 62 is, when viewed from above, a C-shaped member in which aninlet 62a is formed as shown inFIG. 7 . Theinlet 62a of theyarn guide 62 communicates with theinlet 64a of theguide supporting portion 64. The yarn Y is threaded to theyarn guide 62 via theinlets yarn guide 62 is provided on the inner side of thewall portion 63, i.e., on the far side as compared to the near-side ends of thewall portion 63 in the depth direction. Because of this, the yarn Y is certainly provided inside thewall portion 63 by being threaded to theyarn guide 62. - For example, when the yarn threading is performed to one
twisting unit 14B, the yarn threading is performed after the yarn Y is threaded to theyarn guide 62 of thepartition 60 provided immediately above the onetwisting unit 14B. Because of this, even when the wind is generated by the rotation of therollers 45 to 48 of onetwisting unit 14A adjacent to a yarn path of the yarn Y, thewall portion 63 of thepartition 60 suppresses the influence of the wind on the yarn Y. Even if the wind enters the inner side of thewall portion 63 from theopening 67, the occurrence of the yarn swing causing an adverse effect on the yarn threading is avoided because the yarn Y is threaded to theyarn guide 62. In addition to that, the presence of thewall portion 63 suppresses the unintentional winding of the yarn Y around therollers 45 to 48 at the time of the yarn breakage. - In the draw texturing machine 1 of the present embodiment,
plural twisting units 14 each of which includes therollers 45 to 48 (corresponding to rotating members of the present invention) rotated at the time of twisting the yarn Y are aligned in a predetermined arrangement direction and provided on plural stages. In addition to that, thepartition 60 is provided between a yarn path of the yarn Y passing onetwisting unit 14 on one of the plural stages and therollers unit 14 on another of the plural stages, which is close to the yarn path. This suppresses the influence of the wind, generated by the rotation of therollers 45 to 48, on the yarn Y. The yarn swing is therefore suppressed, and hence the yarn threading is easily performed. In addition to that, the presence of thepartition 60 suppresses the unintentional winding of the yarn Y around therollers 45 to 48 in the yarn breakage. - In the present embodiment, the twisting
units 14 include the twistingunits 14 on the upper stage and the twistingunits 14 on the lower stage. Because the twistingunits 14 are provided on two stages, a space required for providing the twistingunits 14 is reduced in the vertical direction. - In the present embodiment, the twisting
units 14A on the upper stage and the twistingunits 14B on the lower stage are alternately arranged in the arrangement direction, and each yarn Y twisted by each twistingunit 14A on the upper stage passes between twoadjacent twisting units 14B on the lower stage while each yarn Y twisted by each twistingunit 14B on the lower stage passes between twoadjacent twisting units 14A on the upper stage. Thepartition 60 is provided between each twoadjacent twisting units 14 on each of the upper stage and the lower stage. When the draw texturing machine 1 is structured so that each yarn Y passes between two twistingunits 14, a distance between the yarn Y and each of the two twistingunits 14 is decreased, with the result that the yarn swing due to the wind from therollers 45 to 48 and the unintentional winding of the yarn Y around therollers 45 to 48 easily occur. The effect of providing thepartition 60 is therefore conspicuous in such a case. - In the present embodiment, the
partition 60 includes thewall portion 63 surrounding at least a part of the periphery of the yarn Y. Because thewall portion 63 surrounds at least a part of the periphery of the yarn Y as described above, it is possible to further effectively suppress the yarn swing due to the wind from therollers 45 to 48 and the unintentional winding of the yarn Y around therollers 45 to 48. - In the present embodiment, the
wall portion 63 is shaped to surround only a part of the periphery of the yarn Y. When thewall portion 63 is formed as a cylindrical member surrounding the entire periphery of the yarn Y, it becomes difficult to thread the yarn Y to the inside of thecylindrical wall portion 63, even though it is possible to improve the effect of suppressing the yarn swing due to the wind from therollers 45 to 48 and the unintentional winding of the yarn Y around therollers 45 to 48. Meanwhile, when thewall portion 63 is shaped to surround only a part of the periphery of the yarn Y, the yarn Y is easily threaded to the inner side of thewall portion 63 via theopening 67 provided in a place where thewall portion 63 is not provided in thepartition 60. - In the present embodiment, the
wall portion 63 extends over the range in which therollers 45 to 48 are provided in the yarn running direction. Because thepartition 60 is arranged as described above, it is possible to further effectively suppress the yarn swing due to the wind from therollers 45 to 48 and the unintentional winding of the yarn Y around therollers 45 to 48. - In the present embodiment, the
partition 60 and theyarn guide 62 are integrally formed. In order to define the yarn path, theyarn guide 62 may be provided in the vicinity of each twistingunit 14. Meanwhile, when theyarn guide 62 and thepartition 60 are integrally formed, a step of providing theyarn guide 62 is unnecessary. - In the present embodiment, the
yarn guide 62 is embedded in thepartition 60 by insert molding. Because theyarn guide 62 is embedded in thepartition 60 by the insert molding, thepartition 60 and theyarn guide 62 are easily and certainly integrated even when thepartition 60 and theyarn guide 62 are made of different materials. - In the present embodiment, the
partition 60 includes the engagingportion 65 which is flexible and engageable with theattachment hole 25a (corresponding to an attached portion of the present invention) to which the partition member is attached, and the engagingportion 65 can be deformed to be switchable between the engagement state in which the engagingportion 65 and theattachment hole 25a are engageable with each other and the cancellation state in which the engagement between the engagingportion 65 and theattachment hole 25a is cancelled. With this arrangement, thepartition 60 is easily attached to and detached from theattachment hole 25a only in such a way that the operator causes the engagingportion 65 to be deformed. - In the present embodiment, each twisting
unit 14 includes therollers 45 to 48 and thecylindrical pin 41 in contact with the circumferential surfaces of therollers 45 to 48, and is a pin-type twisting unit configured to twist each yarn Y running inside thepin 41 in such a way that therollers 45 to 48 are rotated to rotate thepin 41. As described above, when the twistingunit 14 is a pin-type twisting unit, the tension of the yarn Y is almost zero in the yarn threading so that the yarn swing easily occurs. Therefore, providing thepartition 60 is especially effective. - The following will describe modifications of the above-described embodiment.
- The embodiment above has described a case where the present invention is applied to the draw texturing machine 1 including the pin-
type twisting unit 14. Alternatively, the present invention may be applied to a draw texturing machine including a friction-type twisting unit or a belt-type twisting unit. In regard to the friction-type twisting unit, a yarn runs while making contact with the circumferential surfaces of plural discs which are spirally arranged. The discs are rotated so that the yarn is twisted. In this case, the discs correspond to rotating members of the present invention. In regard to the belt-type twisting unit, two endless belts are provided to sandwich a yarn. Each endless belt is rotated so that the yarn is twisted. In this case, the two endless belts correspond to rotating members of the present invention. - In the embodiment above, the
plural twisting units 14 include the twistingunits 14 on the upper stage and the twistingunits 14 on the lower stage. Alternatively, theplural twisting units 14 may be provided on three or more stages. - In the embodiment above, the twisting
units 14A on the upper stage and the twistingunits 14B on the lower stage are provided at the same position in the depth direction, and are alternately arranged in the arrangement direction. Alternatively, the twistingunits 14A on the upper stage and the twistingunits 14B on the lower stage may be provided at different positions from each other in the depth direction. In this case, when a yarn path passing each twistingunit 14A on the upper stage and a yarn path passing each twistingunit 14B on the lower stage are deviated from each other in the depth direction so as to avoid interference between the yarns Y, the twistingunits 14A on the upper stage and the twistingunits 14B on the lower stage may be provided at the same positions as each other in the arrangement direction. - The specific arrangement of the
partition 60 may be different from that in the embodiment above. For example, a partition may be a plate member which is substantially vertical to the horizontal plane and which is provided between a yarn Y and onetwisting unit 14 closest to the yarn Y. Alternatively, thewall portion 63 of thepartition 60 may be cylindrical in shape. Alternatively, eachpartition 60 may be fixed to each of the supportingmembers - In the embodiment above, the
partition 60 and theyarn guide 62 are integrally formed by the insert molding. Alternatively, thepartition 60 and theyarn guide 62 may be integrally provided by a method which is not the insert molding. Alternatively, the yarn guide may be provided to be independent from the partition. - The specific arrangement of the
yarn guide 62 may be different from that in the embodiment above. In other words, theyarn guide 62 may not be a C-shaped member and may be a pipe-shaped member, a snail guide, a dog-tail guide, or a hook guide, etc. The shape of theguide supporting portion 64 may also be suitably changeable in accordance with the specific shape of theyarn guide 62. - While in the embodiment above two yarns Y are combined into one yarn Y in the draw texturing machine 1, it is not prerequisite to combine yarns Y.
Claims (10)
- A draw texturing machine (1) comprising plural twisting units (14) each of which includes a rotating member (45 to 48) rotated at the time of twisting a yarn (Y) and which are aligned in a predetermined arrangement direction and provided on plural stages, wherein,
a partition (60) is provided between a yarn path of the yarn (Y) passing one of the plural twisting units (14) on one of the plural stages and the rotating member (45 to 48) of another one of the plural twisting units (14) on another stage of the plural stages, the another one of the plural twisting units (14) being close to the yarn path. - The draw texturing machine (1) according to claim 1, wherein, the plural twisting units (14) are provided to form two stages which are an upper stage and a lower stage.
- The draw texturing machine (1) according to claim 2, wherein, twisting units (14A) on the upper stage and other twisting units (14B) on the lower stage are alternately arranged in the arrangement direction,
the yarn (Y) twisted by each of the twisting units (14A) on the upper stage passes between two adjacent ones of the other twisting units (14B) on the lower stage,
the yarn (Y) twisted by each of the other twisting units (14B) on the lower stage passes between two adjacent ones of the twisting units (14A) on the upper stage, and
the partition (60) is provided between two adjacent ones of the plural twisting units (14) on each of the upper stage and the lower stage. - The draw texturing machine (1) according to any one of claims 1 to 3, wherein, the partition (60) includes a wall portion (63) surrounding at least a part of the periphery of the yarn (Y).
- The draw texturing machine (1) according to claim 4, wherein, the wall portion (63) is shaped to surround only a part of the periphery of the yarn (Y).
- The draw texturing machine (1) according to claim 4 or 5, wherein, the wall portion (63) extends over a range in which the rotating member (45 to 48) is provided in a yarn running direction.
- The draw texturing machine (1) according to any one of claims 1 to 6, wherein, the partition (60) and a yarn guide (62) are integrally formed.
- The draw texturing machine (1) according to claim 7, wherein, the yarn guide (62) is embedded in the partition (60) by insert molding.
- The draw texturing machine (1) according to any one of claims 1 to 8, wherein, the partition (60) includes an engaging portion (65) which is flexible and engageable with an attached portion (25a) to which the partition (60) is attached, and
the engaging portion (65) is deformable between an engagement state in which the engaging portion (65) and the attached portion (25a) are engaged with each other and a cancellation state in which the engagement between the engaging portion (65) and the attached portion (25a) is cancelled. - The draw texturing machine (1) according to any one of claims 1 to 9, wherein, each of the plural twisting units (14) includes plural rollers (45 to 48) each of which is the rotating member and a cylindrical pin (41) in contact with the circumferential surfaces of the rollers (45 to 48), and
each of the plural twisting units (14) is a pin-type twisting unit configured to twist the yarn (Y) running inside the pin (41) in such a way that the rollers (45 to 48) are rotated to rotate the pin (41).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020068223A JP7398323B2 (en) | 2020-04-06 | 2020-04-06 | False twisting machine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3892763A1 true EP3892763A1 (en) | 2021-10-13 |
Family
ID=74870705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21161767.5A Pending EP3892763A1 (en) | 2020-04-06 | 2021-03-10 | Draw texturing machine |
Country Status (4)
Country | Link |
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EP (1) | EP3892763A1 (en) |
JP (1) | JP7398323B2 (en) |
CN (1) | CN113493948A (en) |
TW (1) | TW202138644A (en) |
Citations (4)
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JPH07150436A (en) * | 1993-11-25 | 1995-06-13 | Murata Mach Ltd | Threading apparatus of heater |
EP1136601A1 (en) * | 1998-10-31 | 2001-09-26 | Teijin Seiki Co., Ltd. | Yarn setting device and method for textile machine |
CN103668614A (en) | 2012-09-17 | 2014-03-26 | 欧瑞康纺织有限及两合公司 | Textile machine |
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JPS4855148U (en) * | 1971-11-01 | 1973-07-16 | ||
FR2745011B1 (en) * | 1996-02-20 | 1998-03-13 | Icbt Roanne | MACHINE FOR THE REALIZATION OF A MIXED WIRE BY ASSEMBLY OF TWO TEXTURED THREADS BY FALSE TORSION |
JPH10273833A (en) * | 1997-03-31 | 1998-10-13 | Murata Mach Ltd | False twister for doubling |
DE10003216C1 (en) * | 2000-01-26 | 2001-09-06 | Heberlein Fasertech Ag | Air swirl nozzle |
DE502008003009D1 (en) * | 2008-06-12 | 2011-05-12 | Rieter Ag Maschf | Device for protecting the edges of separators of a ring spinning machine and ring spinning machine |
DE102008028367B3 (en) * | 2008-06-13 | 2010-01-28 | Harting Electric Gmbh & Co. Kg | Locking device for connector housing |
CN103851573B (en) * | 2012-11-28 | 2016-01-13 | 海洋王(东莞)照明科技有限公司 | Light fixture Quick Connect Kit and use the wall lamp of this light fixture Quick Connect Kit |
CN105401280B (en) * | 2014-09-04 | 2019-04-23 | 日本Tmt机械株式会社 | False twist processing machine |
JP6334373B2 (en) * | 2014-11-19 | 2018-05-30 | Tmtマシナリー株式会社 | Confounding device |
CN205803681U (en) * | 2016-05-23 | 2016-12-14 | 山东天虹纺织有限公司 | One adds twist profiles spinning apparatus |
CN107938041A (en) * | 2017-11-13 | 2018-04-20 | 海盐县金超化纤有限公司 | A kind of twister for Polyamide Yarns twisting |
JP7128575B2 (en) * | 2018-03-16 | 2022-08-31 | Tmtマシナリー株式会社 | False twisting machine |
JP7128574B2 (en) * | 2018-03-16 | 2022-08-31 | Tmtマシナリー株式会社 | False twisting machine |
-
2020
- 2020-04-06 JP JP2020068223A patent/JP7398323B2/en active Active
-
2021
- 2021-03-05 CN CN202110244885.XA patent/CN113493948A/en active Pending
- 2021-03-10 TW TW110108534A patent/TW202138644A/en unknown
- 2021-03-10 EP EP21161767.5A patent/EP3892763A1/en active Pending
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US2291819A (en) * | 1939-08-02 | 1942-08-04 | Lawrie L Witter | Method of spinning |
JPH07150436A (en) * | 1993-11-25 | 1995-06-13 | Murata Mach Ltd | Threading apparatus of heater |
EP1136601A1 (en) * | 1998-10-31 | 2001-09-26 | Teijin Seiki Co., Ltd. | Yarn setting device and method for textile machine |
CN103668614A (en) | 2012-09-17 | 2014-03-26 | 欧瑞康纺织有限及两合公司 | Textile machine |
Also Published As
Publication number | Publication date |
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CN113493948A (en) | 2021-10-12 |
JP2021165443A (en) | 2021-10-14 |
TW202138644A (en) | 2021-10-16 |
JP7398323B2 (en) | 2023-12-14 |
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