EP2749516B1 - Dispositif d'épissage de fil et machine d'enroulement de fils - Google Patents

Dispositif d'épissage de fil et machine d'enroulement de fils Download PDF

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Publication number
EP2749516B1
EP2749516B1 EP13190833.7A EP13190833A EP2749516B1 EP 2749516 B1 EP2749516 B1 EP 2749516B1 EP 13190833 A EP13190833 A EP 13190833A EP 2749516 B1 EP2749516 B1 EP 2749516B1
Authority
EP
European Patent Office
Prior art keywords
yarn
airflow
package
out device
slit
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.)
Not-in-force
Application number
EP13190833.7A
Other languages
German (de)
English (en)
Other versions
EP2749516A3 (fr
EP2749516A2 (fr
Inventor
Noboru Nakayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Machinery Ltd
Original Assignee
Murata Machinery Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP2749516A2 publication Critical patent/EP2749516A2/fr
Publication of EP2749516A3 publication Critical patent/EP2749516A3/fr
Application granted granted Critical
Publication of EP2749516B1 publication Critical patent/EP2749516B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • B65H67/085—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement end-finding at the take-up package, e.g. by suction and reverse package rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a yarn guiding-out device that guides out a yarn end of a package.
  • Yarn guiding-out devices that could be arranged near a package to guide out a yarn end of the package for performing, for example, yarn joining are known in the art. This type of yarn guiding-out devices is disclosed in Japanese Patent Application Laid-open No. H4-213563 , Japanese Patent Application Laid-open No. H6-219649 , Japanese Patent Application Laid-open No. 2000-177933 , and Japanese Patent Application Laid-open No. 2000-72334 .
  • the yarn guiding-out device disclosed in Japanese Patent Application Laid-open No. 2000-177933 includes a movable mechanism that enables the yarn guiding-out device to be movable between a position away from the package and a position near the package.
  • This type of yarn guiding-out device is usually caused to stand by at the position away from the package, but moved to the position near the package when performing yarn joining or the like.
  • the yarn guiding-out devices disclosed in Japanese Patent Application Laid-open No. 2000-177933 and Japanese Patent Application Laid-open No. 2000-72334 include a pipe-like member through which compressed air flows.
  • the pipe-like member has a plurality of through holes for blowing the airflow.
  • an exhaust vent for blowing the airflow is formed on a downstream side of the pipe-like member in a direction of blow of the airflow.
  • the exhaust vent can be brought near the package.
  • the airflow blown through the pipe-like member weakens by the time it reaches the exhaust vent, again necessitating increased flow volume of the airflow to guide out the yarn.
  • Prior art document JP 08-245081 A discloses a suction mouth that enables to find a yarn end even if the yarn end is entangled on the surface of a winding package.
  • the suction mouth is provided with a suction port and air blow of means that are intended to dissolve any entanglement by blowing air onto the package.
  • a yarn guiding out device with the features of claim 1 is provided.
  • Several modifications of the yarn guiding out device are defined by the dependent claims.
  • the slit is formed so as to generate the airflow that flows along an outer wall surface having no opposing wall surface.
  • a yarn winding machine includes a winding apparatus that winds a yarn to form a package; and the above yarn guiding-out device.
  • an automatic winder (yarn winding machine) 1 includes a plurality of yarn winding units 10 that are arranged side by side, a doffing device 5, and a main control device 90.
  • the doffing device 5 travels to the position of that yarn winding unit 10, collects the fully wound package 30, and replaces it with another winding tube 22 (empty bobbin) that does not have any yarn 20 wound around it.
  • the main control device 90 includes a machine setting member 91 and a machine display member 92.
  • the machine setting member 91 is used by an operator to enter predetermined setting values, select an appropriate control method, etc., for setting each of the yarn winding units 10.
  • the machine display member 92 displays a winding status of the yarn 20, details of any error that may have occurred, etc., of each of the yarn winding units 10.
  • a structure of the yarn winding unit 10 is concretely explained below with reference to FIG. 2 .
  • the yarn winding unit 10 includes, arranged sequentially from the yarn supplying bobbin 21 in a yarn running path between the yarn supplying bobbin 21 and the winding tube 22, a yarn unwinding assisting device 12, a tension applying device 13, a yarn joining device 14, a clearer 15, and a winding section (winding apparatus) 18.
  • the yarn unwinding assisting device 12 assists in the unwinding of the yarn 20 from the yarn supplying bobbin 21 by lowering a regulating member 40 covering over a core tube of the yarn supplying bobbin 21 following the unwinding of the yarn 20 from the yarn supplying bobbin 21.
  • a balloon of the yarn 20 is formed above the yarn supplying bobbin 21 due to the swinging of the yarn 20 as well as a centrifugal force generated when the yarn 20 is unwound from the yarn supplying bobbin 21.
  • the regulating member 40 comes into contact with this balloon and regulates a size of the balloon to an appropriate size, and thereby assists in the unwinding of the yarn 20.
  • a not shown sensor that detects a chase portion of the yarn supplying bobbin 21 is arranged near the regulating member 40.
  • the sensor detects a lowering of the chase portion, the regulating member 40 is lowered.
  • the movement of the regulating member 40 is realized by, for example, a not shown air cylinder.
  • the tension applying device 13 applies a predetermined tension on the running yarn 20.
  • a gate-type tension applying device in which movable comb teeth are arranged with respect to fixed comb teeth, is used as the tension applying device 13.
  • the movable comb teeth can be rotated by a rotary solenoid to cause the movable comb teeth to be in an engaged state or in a released state with the fixed comb teeth.
  • Other types of tension applying device such as a disk-type tension applying device, can also be used as the tension applying device 13.
  • the yarn joining device 14 joins a lower yarn from the yarn supplying bobbin 21 and an upper yarn from the package 30 when yarn cutting is performed upon detection of a yarn defect by the clearer 15 or when yarn breakage occurs during the unwinding from the yarn supplying bobbin 21.
  • the yarn joining device 14 can be of a mechanical type or of a type that uses fluid such as compressed air.
  • the clearer 15 includes a not shown sensor that detects the thickness of the yarn 20 or presence of foreign matters in the yarn 20.
  • the clearer 15 detects yarn defects, such as slub, by monitoring a yarn thickness signal output by the sensor.
  • a cutter 39 is arranged prior to the clearer 15 in the yarn path to cut the yarn 20 immediately when the clearer 15 detects a yarn defect.
  • a lower yarn catching member 33 that catches a yarn end of the yarn 20 from the yarn supplying bobbin 21 and guides it to the yarn joining device 14 is arranged below the yarn joining device 14.
  • an upper yarn catching member (conveying device) 36 that catches a yarn end from the package 30 and guides it to the yarn joining device 14 is arranged above the yarn joining device 14.
  • the lower yarn catching member 33 is pivotable about a shaft 34 and the upper yarn catching member 36 is pivotable about a shaft 37.
  • Each of the lower yarn catching member 33 and the upper yarn catching member 36 is coupled to a not shown appropriate negative pressure source. Accordingly, a suction flow is created at an opening portion at the end of each of the lower yarn catching member 33 and the upper yarn catching member 36, and the ends of the lower yarn and the upper yarn, respectively, are caught by suction by the lower yarn catching member 33 and the upper yarn catching member 36.
  • the winding section 18 includes the cradle 23 that detachably supports the winding tube 22, and a contact roller 29 that rotates in contact with an outer peripheral surface of the winding tube 22 or an outer peripheral surface of the package 30.
  • the cradle 23 is supported to pivot in a direction approaching the contact roller 29 and in a direction away from the contact roller 29.
  • the diameter of the yarn layer on the winding tube 22 increases as winding of the yarn 20 proceeds. This increase in the diameter is absorbed by pivoting of the cradle 23.
  • the contact roller 29 is arranged opposing the winding tube 22 in such a way as to make contact with the winding tube 22 or the package 30. Therefore, the rotating contact roller 29 can drive the winding tube 22 or the package 30 to rotate.
  • a not shown traverse groove that traverses the yarn 20 within a predetermined width is formed on an outer peripheral surface of the contact roller 29. Accordingly, the yarn winding unit 10 winds the yarn 20 around the winding tube 22 while traversing the yarn 20 and forms the package 30.
  • a yarn guiding-out device 28 and a guiding plate 27 are arranged near the contact roller 29 and the package 30.
  • the yarn guiding-out device 28 guides out the yarn end of the package 30.
  • the yarn 20 guided out by the yarn guiding-out device 28 is guided along the guiding plate 27 so that the yarn 20 is reliably caught by the upper yarn catching member 36.
  • the upper yarn catching member 36 is arranged independent of the yarn guiding-out device 28 and conveys the yarn 20 guided out by the yarn guiding-out device 28.
  • the yarn guiding-out device 28 guides out the yarn 20 from the package 30. That is, when the clearer 15 detects a yarn breakage or when the yarn is cut by the cutter 39 upon detection of a yarn defect by the clearer 15, a not shown unit controller controls the operation of the winding section 18 so as to slow down and eventually stop the rotation of the package 30. During the slowing down of the rotation of the package 30, the yarn guiding-out device 28 may be caused to blow the airflow to prevent the yarn end from adhering to the package 30. Accordingly, the yarn guiding-out device 28 can guide out the yarn 20 of the package 30 even more reliably.
  • the yarn guiding-out device 28 can start blowing the airflow when the package 30 is rotating (reverse rotating) in the opposite direction to a winding direction (unwinding direction) or when the package 30 has stopped rotating in the winding direction and starts to do reverse rotation.
  • the winding section 18 causes a reverse rotation of the package 30. If the yarn 20 is not successfully guided out from the package 30, the reverse rotation of the package 30 is stopped, and the package 30 is rotated several times in the winding direction.
  • the airflow can be blown by the yarn guiding-out device 28 when the package 30 is being rotated in the winding direction.
  • the above steps ensure a greater chance of successfully guiding out the yarn 20 from the package 30 the second time around.
  • the yarn 20 (upper yarn) that is guided out from the package 30 in this manner is caught by the upper yarn catching member 36 and is joined, by the yarn joining device 14, with the lower yarn caught by the lower yarn catching member 33.
  • the yarn guiding-out device 28 is explained in detail below with reference to FIGS. 3 to 5 .
  • the yarn guiding-out device 28 blows the airflow through the slits 28a in a direction in which the yarn end is guided out from the package 30. As a result, the yarn end is guided out from the package 30.
  • the yarn guiding-out device 28 includes a main member 60, a spacer member 70, and a cover member 80.
  • the main member 60 has a rotary shaft hole 61, an air supplying hole 62, a curved portion 63, a flat portion 64, an open portion 65, an air reservoir 66, and plural fitting holes 67.
  • a rotary shaft 105 (adjusting member, see FIG. 3 ) is fit into the rotary shaft hole 61.
  • the main member 60 is rotated by rotating the rotary shaft 105 by a not shown motor, etc.
  • the yarn winding unit 10 rotates the rotary shaft 105 as the diameter of the package 30 increases with winding of the yarn 20 around the package 30. Accordingly, the position of the yarn guiding-out device 28 can be always maintained near the package 30 regardless of the diameter of the package 30.
  • a structure can be adopted in which the yarn guiding-out device 28 moves by sliding in accordance with the diameter of the package 30.
  • the rotary shaft 105 is supported by an arm 26 shown in FIG. 2 .
  • One end (first end) of the arm 26 is connected to the rotary shaft 105.
  • the other end (second end) of the arm 26 is pivotably supported by a motor, or such-like. Therefore, a distance between the yarn guiding-out device 28 and the package 30 can be adjusted by pivoting the arm 26 around the second end.
  • An angle of the yarn guiding-out device 28 can be adjusted by pivoting the yarn guiding-out device 28 around the rotary shaft 105. Accordingly, the yarn guiding-out device 28 can always be placed at an appropriate position. It is acceptable even if the position of the yarn guiding-out device 28 itself cannot be adjusted and adjustment is only possible by the rotation of the rotary shaft 105.
  • An air supplying pipe 106 (see FIG. 3 ) is fit into the air supplying hole 62. Compressed air that is to be blown through the slits 28a is supplied through the air supplying pipe 106.
  • the curved portion 63 and the flat portion 64 are formed, from among wall surfaces of the main member 60 (the yarn guiding-out device 28), on a wall surface that is closer to the package 30.
  • the curved portion 63 is located near the slits 28a further downstream relative to the slits 28a in the direction of the airflow.
  • the outer wall surface is formed along a direction away from the package 30.
  • the open portion 65 is a rectangular through hole formed on the topside (the side where the spacer member 70 and the cover member 80 are located) of the main member 60. As shown in FIG. 5 , the main member 60 has a level difference on the inside. This level difference makes the size of the hole larger only near the curved portion 63. The portion where the hole is larger and the immediate space surrounding it form the air reservoir 66 that temporarily stores the compressed air.
  • the fitting holes 67 are formed for fitting together the spacer member 70 and the cover member 80.
  • the spacer member 70 is a plate-like member.
  • the spacer member 70 has a structure such that it at least partially blocks the open portion 65 of the main member 60.
  • the spacer member 70 forms the slits 28a by forming gaps between the main member 60 and the cover member 80.
  • the thickness of the spacer member 70 is shown to be large for easy visual recognition.
  • the spacer member 70 includes plural projections 71, notches 72, and fitting holes 73.
  • the projections 71 and the notches 72 are formed side by side.
  • the spacer member 70 is set on the main member 60 with the side where the projections 71 and the notches 72 are formed (the side closer to the package 30) on the side of the curved portion 63.
  • the notches 72 are formed on the flat-plate-like spacer member 70 by press-molding, etc. Once the notches 72 are formed, the remaining portions become the projections 71 that protrude beyond the notches 72.
  • the fitting holes 73 are formed in the spacer member 70 at positions corresponding to those of the fitting holes 67.
  • the cover member 80 is fitted on the main member 60, sandwiching the spacer member 70 and covering the open portion 65. As shown in FIG. 4 , a wedge portion 81 and plural fitting holes 82 are formed in the cover member 80.
  • the wedge portion 81 is located further upstream relative to the slits 28a in the direction of the airflow.
  • the cover member 80 is a plate-like member with a plate thickness decreasing toward the curved portion 63 (toward the side closer to the package 30). That is, the wedge portion 81 tapers toward the slits 28a.
  • the fitting holes 82 are formed in the cover member 80 at positions corresponding to those of the fitting holes 67 and the fitting holes 73.
  • the main member 60, the spacer member 70, and the cover member 80 are fitted together by aligning the fitting holes 67, 73, and 82 and inserting corresponding screws 100 through them.
  • the slits 28a are formed in this manner. Precise machining is required for making a tiny hole in the pipe-like member cited in Japanese Patent Application Laid-open No. 2000-177933 and Japanese Patent Application Laid-open No. 2000-72334 so that the processing cost increases. However, by adopting the method disclosed in the present embodiment, the slits 28a can be formed at a low cost.
  • the air stored in the air reservoir 66 is pushed out (airflow represented by the reference symbol A1 in FIG. 5 ).
  • the airflow is blown to the outside through the slits 28a.
  • the air reservoir 66 is provided at a position located away from the slits 28a.
  • the curved portion 63 is located at a position that is continuous with the slits 28a. Therefore, the airflow does not rebound from the wall surface (the curved portion 63). The airflow moves along the curved portion 63 (airflow represented by the reference symbol A2 in FIG. 5 ). In this manner, an airflow that flows along the surface of the package 30 can be generated.
  • the slits 28a and the curved portion 63 are formed such that the direction of flow of the generated airflow and the direction in which the yarn end 20a of the package 30 is guided out are the same. In this manner, the yarn end 20a of the package 30 can be guided out by the airflow.
  • the yarn guiding-out device 28 has the wedge portion 81 that tapers so as to smoothly connect with the curved portion 63. Consequently, a surrounding airflow represented by the reference symbol A3 in FIG. 5 can be effectively pulled in to supplement the airflow represented by the reference symbol A2. In this manner, the yarn end 20a of the package 30 can be guided out even more reliably with a smaller flow volume of the airflow blown through the slits 28a.
  • the yarn end 20a thus guided out by the yarn guiding-out device 28 is guided by the airflow represented by the reference symbol A2 along the flat portion 64 in a direction opposite to the package 30.
  • the upper yarn catching member 36 catches the yarn end 20a guided in the above manner and guides it to the yarn joining device 14.
  • the yarn guiding-out device 28 requires a smaller flow amount of the airflow for guiding out the yarn 20 as it employs the compressed air.
  • a typical automatic winder for example, as cited in Japanese Patent Application Laid-open No. 2009-155101 , the yarn of the package is guided out by a suction mouth. Because the opening of the suction mouth has a large surface area, the suction flow rate is large. Therefore, when the yarn winding machine includes many such yarn winding units and a common blower for all the yarn winding units, the number of yarn winding units in which the yarns of the packages can be simultaneously guided out is restricted by the performance of the blower.
  • the automatic winder 1 because the flow volume of the airflow blown from the yarn guiding-out device 28 is small, and in addition, a surface area of the opening of the upper yarn catching member 36 is also smaller than the opening of the suction mouth, a suction flow volume of the upper yarn catching member 36 is small. Therefore, the automatic winder 1 that includes the yarn guiding-out device 28 according to the present embodiment can simultaneously guide out the yarns 20 from more yarn winding units 10.
  • a shape of the spacer member 70 is explained below with reference to FIGS. 6A to 6C .
  • a length of the yarn guiding-out device 28 be the same as a length of the package 30 in a winding width direction. If supposing no projections 71 are formed in the spacer member 70, there would be a single slit 28a running over the entire length of the yarn guiding-out device 28. In this example, the flow volume of the airflow will also be large.
  • the notches 72 are formed such that the width (d1) of the projections 71 is greater than the width (d2) of the notches 72, as shown in FIG. 6A .
  • a plurality of the projections 71 and the notches 72 are formed, with all the projections 71 having the same width d1 and all the notches 72 having the same width d2. Therefore, in the spacer member 70 according to the present embodiment, a portion that obstructs the airflow from being blown is larger than a portion from where the airflow is blown. Consequently, the yarn end 20a can be guided out with a smaller flow volume of the airflow.
  • FIG. 6B or FIG. 6C can be adopted.
  • the projections 71 are formed only at the ends of the spacer member 70 in a length direction of the spacer member 70 and the portion between the projections 71 forms the notch 72.
  • the projections 71 are provided so that the blown air does not leak in a direction perpendicular to the length direction.
  • the projections 71 and the notches 72 are alternately formed.
  • the example shown in FIG. 6C differs from the present embodiment in that the width (d1) of the projections 71 is smaller than the width (d2) of the notches 72.
  • the shape of the spacer member 70 is not restricted to the ones stated above and can be suitably modified.
  • the yarn guiding-out device 28 can guide out the yarn end 20a while using a suitable flow volume.
  • the slits 28a are formed in the yarn guiding-out device 28 according to the present embodiment.
  • the yarn guiding-out device 28 blows the airflow through the slits 28a in the direction in which the yarn end 20a of the package 30 is guided out from the package 30.
  • the slits 28a are formed so as to generate the airflow that flows along the outer wall surface (specifically, the curved portion 63 and the flat portion 64) having no opposing wall surface.
  • the portion where the airflow flows and the package 30 can be brought close to each other. Consequently, the yarn end 20a can be reliably guided out with a smaller flow volume of the airflow.
  • the outer wall surface includes the curved portion 63.
  • the yarn guiding-out device 28 includes the main member 60, the cover member 80, and the spacer member 70.
  • the main member 60 includes the outer wall surface and the open portion 65.
  • the cover member 80 is fitted on the main member 60.
  • the spacer member 70 is arranged so as to at least partially block the open portion 65, forming the slits 28a between the cover member 80 and the main member 60.
  • the slits 28a are formed with ease merely by assembling the above structural elements. Furthermore, in the yarn guiding-out device 28, both the slits 28a and the outer wall surface along which the airflow flows are formed in the main member 60. Consequently, the portion from which the airflow is blown does not jut out, unlike in the invention disclosed in Japanese Patent Application Laid-open No. 2000-177933 . With no wall surface to cause the airflow to rebound, the airflow can be effectively utilized.
  • the notches 72 are formed in the spacer member 70. The airflow is blown to the outside through the notches 72.
  • the portion that obstructs the airflow (sum of the widths of the projections 71) is larger than the portion that blows the airflow (sum of the widths of the notches 72).
  • the cover member 80 is a plate-like member.
  • the cover member 80 includes the wedge portion 81.
  • the plate thickness of the wedge portion 81 decreases toward the slits 28a.
  • the surrounding air can be pulled in to supplement the blown airflow, and thereby, the yarn end 20a can be reliably guided out from the package 30 even with a smaller flow volume.
  • one yarn joining device 14 is provided per yarn winding unit 10.
  • a yarn joining device 14 that is common to some or all of the yarn winding units 10 can be mounted on a vehicle that is movable in a direction of arrangement of the yarn winding units 10. In this arrangement, the yarn 20 guided out by the yarn guiding-out device 28 is fed into the yarn joining device 14 mounted on the vehicle.
  • the winding section 18 traverses the yarn 20 by the traverse groove formed on the contact roller 29.
  • a contact roller without any traverse groove formed on it can be used and the yarn 20 can be traversed by a traversing device that is arranged separately from the contact roller.
  • a mechanism is provided that feeds the yarn 20 guided out by the yarn guiding-out device 28 to the yarn joining device 14; however, this structure is not limited. That is, the yarn 20 can be fed to any other device. Moreover, instead of providing a mechanism for feeding the yarn 20, an operator can manually feed the yarn 20 to an appropriate device.
  • a cheese package was cited as an example.
  • the present invention can be applied to a tapered package and/or a cone package.
  • the running direction of the yarn need not be a substantially upward direction in a height direction of the machine, and can be a substantially downward direction.
  • the present invention should not be limited to automatic winders and can also be applied to other yarn winding machines, such as re-winding machines and spinning machines (for example, air spinning machines, open-end spinning machines, etc.). Therefore, the present invention can also be applied to a spinning machine in which a separate yarn joining device is provided for each winding unit.
  • a slit is formed in a yarn guiding-out device.
  • the yarn guiding-out device blows an airflow through the slit in a direction in which a yarn of a package is guided out from the package.
  • the slit is formed such that the airflow that is generated flows along an outer wall surface having no opposing wall surface.
  • the airflow blown from the slit flows along the outer wall surface of the yarn guiding-out device. Consequently, because the portion where the air flows and the package can be brought close to each other, the yarn can be reliably guided out even with a smaller flow volume of the airflow.
  • the outer wall surface is formed along a direction away from the package.
  • the slit is formed in the yarn guiding-out device.
  • the yarn guiding-out device blows the airflow through the slit in the direction in which the yarn of the package is guided out from the package.
  • the slit is formed such that the airflow that is generated flows along the outer wall surface.
  • the outer wall surface is formed along the direction away from the package.
  • the outer wall surface includes a curved portion.
  • the yarn guiding-out device includes a main member, a cover member, and a spacer member.
  • the main member includes an outer wall surface and an opening.
  • the cover member is detachably fitted on the main member.
  • the spacer member at least partially blocks the open portion, forming the slit between the cover member and the main member.
  • both the slit and the outer wall surface along which the airflow flows are formed in the main member. Consequently, the portion from which the airflow is blown does not jut out. With no wall surface to cause the airflow to rebound, the airflow can be effectively utilized.
  • a notch is formed in the spacer member. The airflow is blown to the outside through the notches.
  • the spacer member includes alternating projections and notches. Moreover, a portion formed by the projections that obstructs the airflow from being blown is larger than a portion formed by the notches from where the airflow is blown.
  • the cover member is a plate-like member that includes a wedge portion having a plate thickness that decreases toward the slit.
  • the surrounding air can be pulled in to supplement the blown airflow, and thereby, the yarn can be reliably guided out from the package even with a smaller flow volume.
  • the yarn guiding-out device include an air reservoir for temporarily storing the airflow that is to be supplied to the slit.
  • the air reservoir is arranged at a position located away from the slit.
  • the yarn guiding-out device include an adjusting member that adjusts a relative distance between the yarn guiding-out device and the package in accordance with an increase in a wound diameter of the package.
  • the slit of the yarn guiding-out device can be positioned closer to the package. Consequently, the act of shifting the yarn guiding-out device near the package as the yarn is guided out can be omitted.
  • a yarn winding machine includes a winding apparatus that winds a yarn to form a package and the yarn guiding-out device that guides out the yarn from the package.
  • the yarn winding machine further includes a conveying device.
  • the conveying device is arranged independent of the yarn guiding-out device and conveys the yarn guided out by the yarn guiding-out device.
  • the yarn winding machine further includes a yarn supplying section that supplies the yarn to be wound to form the package.
  • the yarn guiding-out device blows the airflow.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)

Claims (12)

  1. Dispositif de guidage en sortie de fil (28) dans lequel une fente (28a) est formée et la direction d'un courant d'air soufflé à travers la fente (28a) est une direction dans laquelle le fil (20) d'un rouleau (30) est guidé hors du rouleau (30), dans lequel :
    la fente (28a) est formée de manière à générer le courant d'air qui s'écoule le long d'une surface de paroi extérieure (63, 64), et,
    si la direction du courant d'air soufflé depuis la fente (28a) est considérée comme la direction du courant d'air, à un endroit qui est plus en aval par rapport à la fente (28a) dans la direction du courant d'air, la surface de paroi extérieure (63, 64) est formée dans une direction s'écartant du rouleau (30) ;
    dans lequel, si la direction du courant d'air soufflé depuis la fente (28a) est considérée comme la direction du courant d'air, à un endroit qui est en plus en aval par rapport à la fente (28a) dans la direction du courant d'air, la surface de paroi extérieure (63, 64) comprend une partie incurvée (63), la partie incurvée (63) se trouvant dans une position qui est continue avec la fente (28a).
  2. Dispositif de guidage en sortie de fil (28) selon la revendication 1, dans lequel la surface de paroi extérieure (63, 64) ne possède pas de surface de paroi opposée.
  3. Dispositif de guidage en sortie de fil (28) selon l'une quelconque des revendications 1 à 2, comprenant :
    un élément principal (60) qui comprend la surface de paroi extérieure (63, 64) et dans lequel est formée une ouverture (65) ;
    un élément de recouvrement (80) qui est ajusté sur l'élément principal (60) ; et
    un élément d'espacement (70) adapté pour bloquer au moins partiellement l'ouverture (65) et pour former la fente (28a) entre l'élément de recouvrement (80) et l'élément principal (60).
  4. Dispositif de guidage en sortie de fil (28) selon la revendication 3, dans lequel une encoche (72) est formée dans l'élément d'espacement (70) et le courant d'air est soufflé vers l'extérieur à travers l'encoche (72).
  5. Dispositif de guidage en sortie de fil (28) selon la revendication 4, dans lequel l'élément d'espacement (70) comprend des saillies (71) et des encoches (72) en alternance, et
    une partie, formée par les saillies (71), qui obstrue le soufflage du courant d'air , étant plus grande qu'une partie formée par les encoches (72) d'où est soufflé le courant d'air.
  6. Dispositif de guidage en sortie de fil (28) selon l'une quelconque des revendications 3 à 5, dans lequel l'élément de recouvrement (80) est un élément de type plaque qui comprend une partie cale (81) ayant une épaisseur de plaque qui diminue vers la fente (28a).
  7. Dispositif de guidage en sortie de fil (28) selon l'une quelconque des revendications 1 à 6, comprenant en outre un réservoir d'air (66) adapté pour stocker temporairement le courant d'air à fournir à la fente (28a).
  8. Dispositif de guidage en sortie de fil (28) selon la revendication 7, dans lequel le réservoir d'air (66) se trouve dans une position éloignée de la fente (28a).
  9. Dispositif de guidage en sortie de fil (28) selon l'une quelconque des revendications 1 à 8, comprenant en outre un élément d'ajustement (105) adapté pour ajuster une distance relative entre le dispositif de guidage en sortie de fil (28) et le rouleau (30) conformément à une augmentation du diamètre enroulé du rouleau (30).
  10. Machine d'enroulement de fil (1) comprenant :
    un appareil d'enroulement (18) adapté pour enrouler un fil (20) afin de former un rouleau (30) ; et
    le dispositif de guidage en sortie de fil (28) selon l'une quelconque des revendications 1 à 9 adapté pour guider en sortie le fil (20) depuis le rouleau (30).
  11. Machine d'enroulement de fil (1) selon la revendication 10, comprenant en outre un dispositif d'acheminement (36) agencé indépendamment du dispositif de guidage en sortie de fil (28) et adapté pour acheminer le fil (20) guidé en sortie par le dispositif de guidage en sortie de fil (28).
  12. Machine d'enroulement de fil selon la revendication 10 ou 11, comprenant en outre une section d'alimentation en fil adaptée pour fournir le fil (20) à enrouler afin de former le rouleau (30),
    dans laquelle le dispositif de guidage en sortie de fil (28) est adapté pour souffler le courant d'air quand le fil (20) entre la section d'alimentation en fil et le rouleau (30) est interrompu.
EP13190833.7A 2012-12-27 2013-10-30 Dispositif d'épissage de fil et machine d'enroulement de fils Not-in-force EP2749516B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012285714A JP2014125348A (ja) 2012-12-27 2012-12-27 糸引出し装置及び糸巻取機

Publications (3)

Publication Number Publication Date
EP2749516A2 EP2749516A2 (fr) 2014-07-02
EP2749516A3 EP2749516A3 (fr) 2014-07-23
EP2749516B1 true EP2749516B1 (fr) 2016-05-11

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EP (1) EP2749516B1 (fr)
JP (1) JP2014125348A (fr)
CN (1) CN103896109B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016196352A (ja) * 2015-04-06 2016-11-24 村田機械株式会社 給糸ボビン糸端案内装置及びボビン準備システム
JP2016216204A (ja) * 2015-05-21 2016-12-22 村田機械株式会社 糸巻取機
JP2019031381A (ja) 2017-08-09 2019-02-28 村田機械株式会社 糸引出装置及び糸巻取機
DE102017009728A1 (de) * 2017-10-19 2019-04-25 Oerlikon Textile Gmbh & Co. Kg Aufspulvorrichtung
CN109468743A (zh) * 2018-12-13 2019-03-15 嘉兴市梦钰服饰有限公司 一种电脑横机的喷气式防回卷装置及防回卷的方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH417427A (de) * 1963-07-03 1966-07-15 Reiners Walter Dr Ing Vorrichtung zum Aufwickeln von Fäden bei Spulmaschinen, insbesondere Kreuzspulmaschinen
DE4005547A1 (de) 1990-02-22 1991-08-29 Schlafhorst & Co W Kreuzspulenherstellungsmaschine
JPH04246072A (ja) * 1991-01-30 1992-09-02 Murata Mach Ltd 自動ワインダ
DE4241992A1 (de) 1992-12-12 1994-06-16 Schlafhorst & Co W Verfahren und Vorrichtung zum Ansaugen eines Fadenanfangs einer Ablaufspule
JPH08245081A (ja) * 1995-03-08 1996-09-24 Murata Mach Ltd サクションマウス
JP2000072334A (ja) 1998-08-31 2000-03-07 Murata Mach Ltd 糸端の口出し装置
JP2000177933A (ja) 1998-12-16 2000-06-27 Murata Mach Ltd 紡績機の作業台車
JP2009155101A (ja) 2007-12-27 2009-07-16 Murata Mach Ltd 巻取ユニット及びそれを備える自動ワインダ
CH699278A2 (de) * 2008-07-31 2010-02-15 Rieter Ag Maschf Vorrichtung zum Aufwickeln eines laufenden Fadens auf eine Spule.
DE102010021153A1 (de) * 2010-05-21 2011-11-24 Oerlikon Textile Gmbh & Co. Kg Bedienaggregat

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Publication number Publication date
JP2014125348A (ja) 2014-07-07
EP2749516A3 (fr) 2014-07-23
EP2749516A2 (fr) 2014-07-02
CN103896109B (zh) 2018-05-25
CN103896109A (zh) 2014-07-02

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