WO2015029275A1 - 糸引出装置、糸巻取装置及び糸継方法 - Google Patents
糸引出装置、糸巻取装置及び糸継方法 Download PDFInfo
- Publication number
- WO2015029275A1 WO2015029275A1 PCT/JP2014/000572 JP2014000572W WO2015029275A1 WO 2015029275 A1 WO2015029275 A1 WO 2015029275A1 JP 2014000572 W JP2014000572 W JP 2014000572W WO 2015029275 A1 WO2015029275 A1 WO 2015029275A1
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- WIPO (PCT)
- Prior art keywords
- yarn
- winding
- unit
- package
- light
- Prior art date
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Classifications
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- 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
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- 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 yarn drawing device includes a winding yarn catching and guiding device that sucks and catches the yarn from the package, and a detection unit that detects the yarn caught by the winding yarn catching and guiding device.
- the winding yarn catching and guiding device terminates the suction catching operation when the detection unit detects the yarn (or after a predetermined time has elapsed since the detection).
- Patent Documents 1 and 2 disclose this type of yarn drawing device.
- the yarn drawing device disclosed in Patent Document 1 includes a suction nozzle that catches a yarn of a package.
- the suction nozzle is configured to be rotatable.
- a sensor (detection unit) for detecting the yarn is provided inside the suction port at the tip of the suction nozzle.
- the yarn pulling device of Patent Document 2 is also provided with a sensor (detection unit) at the tip of the suction mouse that captures the yarn of the package.
- wiring for supplying electricity, wiring for inputting / outputting data, and the like are connected to the detection unit for detecting the yarn. Therefore, when the detection unit is attached to the movable winding yarn catching and guiding device, it is necessary to devise the attachment position and length of the wiring so that the winding yarn catching and guiding device can move. Note that it is unavoidable that a load is applied to the wiring even if the wiring mounting position is devised, so that the life of the wiring is inevitably shortened. In particular, in the yarn drawing device of Patent Document 1, this problem is remarkable because the detection unit is attached to a position farthest from the turning axis (a position where the movement distance is the longest).
- the above-described problem can be reduced by arranging the detection unit in a portion where the movement distance is small (near the swivel axis or on the downstream side).
- the time from when the take-up yarn catching and guiding device catches the yarn until it is detected is long, for example, the time required for piecing increases.
- the yarn drawing device includes a winding yarn catching guide device and a detection unit.
- the winding yarn catching and guiding device includes a movement catching portion that moves from a standby position to a catching position on the winding portion side and sucks and catches the winding yarn that is the yarn on the winding portion side.
- the detection unit detects the winding yarn caught by the winding yarn catching and guiding device.
- the movement capture unit approaches the detection unit by moving from the standby position to the capture position, and the detection unit detects the presence or absence of a wound yarn inside the movement capture unit that has moved to the capture position.
- the detection unit is arranged at a position different from the movement capturing unit, even if the movement capturing unit moves, the wiring connected to the detection unit is not burdened. Moreover, since it is not necessary to consider the burden of wiring, the winding yarn can be detected at an arbitrary position of the movement capturing unit.
- the above-described yarn pulling device preferably has the following configuration. That is, the detection unit includes a light projecting unit and a light receiving unit.
- the light projecting unit projects light to a detection position inside the movement capturing unit.
- the light receiving unit receives light projected from the light projecting unit and reflected at the detection position, or light projected from the light projecting unit and passed through the detection position.
- the movement capturing unit is formed with a light passage unit that allows the light projected from the light projecting unit to pass therethrough.
- the above-described yarn pulling device preferably has the following configuration. That is, the movement capturing unit includes a suction port and a pipe unit.
- the suction port approaches the outer peripheral surface of the package and sucks the yarn end of the package.
- the pipe portion is connected to the suction port.
- the winding yarn catching and guiding device further includes a shaft portion serving as a reference point when the suction port is brought close to the package.
- the light passage part is formed in the pipe part.
- the pipe portion it is easier to assume a place through which the wound yarn passes than the suction port, so that the detection accuracy can be increased. Moreover, since the yarn end can be detected at an early stage by forming the light passage portion in the pipe portion that is closer to the suction port than the shaft portion, the winding efficiency can be improved.
- a guide portion for guiding the winding yarn sucked by the suction port to the detection position is provided inside the pipe portion.
- the winding yarn can be guided to the detection position, so that the detection accuracy can be improved.
- the wound yarn can be detected with high accuracy.
- the light passage portion is a transparent plate formed on at least a part of the pipe portion.
- the light passing portion is a through-shaped notch formed in at least a part of the pipe portion.
- the light passage portion is a circumferential surface of the cylindrical portion, and a circumferential surface on a side facing the detection portion when the winding yarn catching and guiding device catches the winding yarn. It is preferable to be provided.
- a reflecting portion that reflects the posted light is provided inside the cylindrical portion and on the opposite side of the light passing portion across the detection position.
- the colored winding yarn can be detected with high accuracy.
- the detection unit is preferably attached to the winding unit.
- the distance between the detection unit and the package is reduced by arranging the detection unit in the winding unit, it can be detected at an early stage whether or not the winding yarn is captured by the movement capturing unit.
- the above-described yarn winding device preferably has the following configuration. That is, the yarn winding device further includes a yarn supplying unit and a yarn joining device.
- the yarn feeding section is provided with a thread for the winding section to wind up.
- the yarn joining device joins the winding yarn and the yarn on the yarn feeding portion side when the yarn is divided between the winding portion and the yarn feeding portion.
- the yarn drawing device guides the winding yarn to the yarn joining device.
- the detection unit is preferably attached to a metal portion of the winding unit.
- this yarn joining method includes a capturing step, a detecting step, a standby step, and a guide step.
- a suction capturing operation is performed in which the winding yarn capturing guide device is brought close to the package and the package is rotated in a direction opposite to the winding direction.
- the winding yarn catching and guiding device detects that the winding yarn has been sucked and caught.
- the suction-capturing operation is continued until a set time elapses after it is detected that the wound yarn has been sucked-captured.
- the wound yarn is guided to the yarn joining device after the standby process is completed.
- the flowchart which shows the process at the time of attracting
- the plane enlarged view explaining the example of the position of a contact roller.
- the side surface enlarged view which shows the 1st modification of a winding part.
- the plane enlarged view which shows the 2nd modification of a winding part.
- FIG. 1 is a front view showing a schematic configuration of an automatic winder 1 of the present embodiment.
- the machine base control device 12 is configured to be able to communicate with each winding unit 10.
- the operator of the automatic winder 1 can manage a plurality of winding units 10 collectively by appropriately operating the machine control device 12.
- Each winding unit 10 is configured to unwind the yarn 14 from the yarn supplying bobbin 16 and wind the yarn 14 around the winding bobbin 19 while traversing the yarn 14. As described above, the winding unit 10 forms the package 22.
- Each winding unit 10 includes a unit controller 50 on one side (the right side in FIG. 1) such as the yarn feeding bobbin 16 and the package 22.
- the unit controller 50 includes, for example, a CPU and a ROM.
- the ROM stores a program for controlling each configuration of the winding unit 10.
- the CPU executes a program stored in the ROM.
- the doffing device 13 travels to the position of the winding unit 10 when the package 22 becomes full in each winding unit 10 (a state where a specified amount of yarn is wound), It is configured to remove and set an empty winding bobbin 19.
- the winding unit 10 includes a yarn supplying unit 15 and a winding unit 17.
- the yarn supplying section 15 is configured to hold a yarn supplying bobbin 16 placed on a conveyance tray (not shown) at a predetermined position. Thereby, the yarn 14 can be appropriately unwound from the yarn supplying bobbin 16.
- the yarn supplying unit 15 is not limited to the transport tray type, and may be a magazine type, for example.
- the winding unit 17 includes a cradle (supporting unit) 18, a winding bobbin 19, and a winding drum (auxiliary roller) 20 as main components.
- the cradle 18 has a pair of rotation support portions, and is configured to rotatably support the take-up bobbin 19 (or package 22) by sandwiching the take-up bobbin 19 with the rotation support portion. .
- the cradle 18 is configured to be switchable between a state in which the supporting package 22 is in contact with the winding drum 20 and a state in which the package 22 is separated from the winding drum 20.
- the winding drum 20 is for traversing the yarn 14 on the surface of the package 22 and rotating the package 22.
- the winding drum 20 is rotationally driven by a drum drive motor (drive source) 21. With the outer periphery of the package 22 in contact with the winding drum 20, the winding of the winding drum 20 can be driven to rotate the package 22.
- a spiral traverse groove (traverse mechanism) is formed on the outer peripheral surface of the winding drum 20.
- the yarn 14 unwound from the yarn feeding bobbin 16 is wound around the surface of the package 22 while being traversed at a constant width by the traverse groove. Thereby, the package 22 having a constant winding width can be formed.
- Other members arranged in the winding unit 17 will be described later.
- Each winding unit 10 includes, in order from the yarn supplying unit 15 side, the unwinding assisting device 25, the tension applying device 27, and the yarn joining device 38 in the yarn traveling path between the yarn supplying unit 15 and the winding unit 17. And the clearer 40 is arranged. Further, an upper yarn catching guide device (winding yarn catching guide device) 30 and a lower yarn catching guide device 34 are arranged in the vicinity of the yarn joining device 38.
- the upstream side and the downstream side in the traveling direction of the yarn 14 may be simply referred to as “upstream side” and “downstream side”.
- the unwinding assisting device 25 includes a regulating member 26 that can be put on the core tube of the yarn feeding bobbin 16.
- the restricting member 26 is configured in a substantially cylindrical shape and is disposed so as to contact a balloon formed on the yarn layer upper portion of the yarn feeding bobbin 16.
- the balloon is a portion where the yarn 14 unwound from the yarn feeding bobbin 16 is swung around by centrifugal force.
- the tension applying device 27 applies a predetermined tension to the traveling yarn 14.
- the tension applying device 27 is configured by a gate type device in which movable comb teeth are arranged with respect to fixed comb teeth. The movable comb teeth are biased so that the comb teeth are engaged with each other. By passing the yarn 14 while bending the meshed comb teeth, an appropriate tension can be applied to the yarn 14 and the quality of the package 22 can be improved.
- the tension applying device 27 is not limited to the gate type, but may be a disk type, for example.
- the yarn joining device 38 includes a yarn 14 (lower yarn) on the yarn feeding unit 15 side and a winding unit when the yarn 14 is divided between the yarn feeding unit 15 and the winding unit 17 for some reason.
- the yarn 14 (upper yarn, winding yarn) on the 17 side is spliced.
- the yarn joining device 38 is configured as a splicer device that twists yarn ends together by a swirling air flow generated by compressed air.
- the yarn splicing device 38 is not limited to the splicer device, and for example, a mechanical knotter or the like can be employed.
- the upper thread catching guide device 30 is a device that catches the upper thread when the yarn 14 is in a divided state.
- the upper thread catching and guiding device 30 includes a shaft portion 31, a pipe portion 32, and a suction port 33.
- the pipe section 32 is controlled by the unit control section 50, and the standby position on the yarn supplying section 15 side (solid line in FIG. 2) with the shaft section 31 as a turning center (a reference point when the suction port 33 approaches the package 22).
- the upper thread catching and guiding device 30 is connected to a negative pressure source (not shown), and can generate a suction flow at the suction port 33.
- the suction port 33 can guide the upper thread to the yarn joining device 38 by capturing the upper thread at the capturing position and returning to the standby position.
- the pipe part 32 and the suction port 33 of the upper thread catching and guiding device 30 move and catch the yarn 14, the pipe part 32 and the suction port 33 are collectively referred to as a movement catching part 30a.
- the edge part of the one side of the suction opening 33 of this embodiment is extended, this effect is mentioned later.
- the lower thread catching and guiding device 34 includes a shaft part 35, a pipe part 36, and a lower thread catching and suction port 37, similarly to the upper thread catching and guiding apparatus 30. Similarly to the suction port 33, the lower thread catching suction port 37 can be swung around the shaft portion 35 and can generate a suction flow. With this configuration, the lower thread catching and guiding device 34 can catch the lower thread and guide it to the yarn joining device 38.
- the clearer 40 is provided with an unillustrated sensor for detecting the thickness of the yarn joining device 38.
- the clearer 40 detects a yarn defect such as a slab by monitoring a yarn thickness signal from the sensor.
- a cutter 41 is provided for cutting the yarn 14 immediately when the clearer 40 detects a yarn defect.
- the detection result of the sensor may be analyzed by a processing unit in the clearer 40 or may be analyzed by the unit control unit 50.
- the winding unit 10 can form the package 22 by winding the yarn 14 around the winding bobbin 19.
- the winding unit 17 includes an air flow ejection unit 60, a contact roller (power transmission mechanism) 64, and a detection unit 68 in addition to the winding drum 20 and the package 22.
- a configuration including the upper thread catching and guiding device 30 and the detecting unit 68 is referred to as a thread drawing device 28.
- the air flow ejection unit 60 includes an air flow path 61 through which compressed air flows, and a nozzle 62 that ejects the compressed air that has flowed through the air flow path 61.
- the nozzle 62 is arrange
- the yarn 14 is moved to the central portion in the winding axis direction by the air flow. Can be prevented from falling.
- the surface of the contact roller 64 is made of a soft member (for example, a rubber member such as NBR).
- the contact roller 64 is a member for reversely rotating the package 22 by the drum drive motor 21 when piecing is performed.
- the contact roller 64 is rotatably connected to one end portion of the first link portion 65. Thereby, the contact roller 64 can rotate about the other end part of the 1st link part 65 as a rotating shaft.
- a second link portion 66 is rotatably connected to the middle portion of the first link portion 65.
- the second link portion 66 is configured to be movable by receiving a driving force such as a solenoid or an air cylinder.
- the contact roller 64 contacts both the winding drum 20 and the package 22 as shown in FIG. 8A described later. Can be made. In this state, the package 22 can be rotated in the reverse direction by driving the drum drive motor 21 in the rotating direction during the winding operation.
- the raw material of the contact roller 64 is arbitrary, it can prevent that the package 22 and the winding drum 20 are damaged by employ
- the detection unit 68 is configured as an optical sensor, and determines whether the yarn 14 of the package 22 is successfully captured by the suction port 33.
- the detection unit 68 is fixed to the winding unit 17 via an appropriate member (details will be described later), and maintains a constant position regardless of the rotation of the winding drum 20 and the rotation of the suction port 33. .
- a light passage part (detection window) 69 is formed in the pipe part 32 of the upper thread catching and guiding device 30.
- the light passage portion 69 is formed by forming a concave portion on the surface of the pipe portion 32 and making the concave portion a transparent plate (a member that transmits light, acrylic, polycarbonate, or the like).
- the light passing portion 69 may be flattened without being recessed by cutting out the surface of the pipe portion 32 and arranging a transparent plate instead.
- the detection unit 68 and the pipe unit 32 will be described in detail with reference to FIGS. 4 to 6.
- the winding unit 17 includes a detection unit mounting plate 81 and a winding unit support plate 82.
- Detecting portion 68 is attached in the vicinity of the front end portion of detecting portion mounting plate 81.
- the detection unit mounting plate 81 is fixed to the winding unit support plate 82 with bolts or the like in the vicinity of the end on the back side.
- the detection unit mounting plate 81 and the detection unit 68 are supported by the winding unit support plate 82.
- the winding part support plate 82 is a metal member that supports members around the winding drum 20. By making the winding part support plate 82 made of metal, the detection part 68 can be grounded and exhausted.
- the winding unit support plate 82 also supports members other than the detection unit 68. Thereby, since the special member for supporting the detection part 68 is unnecessary, the increase in a number of parts can be suppressed.
- the detection unit 68 of this embodiment includes a light projecting unit 68a and a light receiving unit 68b.
- the light projecting unit 68a projects light to a portion (detection position) through which the yarn 14 passes in the pipe unit 32.
- the light receiving unit 68b receives the light projected by the light projecting unit 68a and reflected by the yarn 14.
- the detection unit 68 determines the presence or absence of the thread 14 according to the intensity of the light received by the light receiving unit 68b. That is, the detecting unit 68 determines that the yarn 14 is present (the movement capturing unit 30a has succeeded in capturing the yarn 14) when the light receiving unit 68b receives light of a predetermined intensity or more.
- the configuration of the detection unit 68 is arbitrary, and for example, the configuration shown in FIGS. 5B to 5D may be used.
- the pipe portion 32 includes a reflection plate 32d inside the detection portion 68 (on the opposite side of the detection portion 68 (light passage portion 69) across the detection position).
- the light projected by the light projecting unit 68a is reflected by the reflecting plate 32d and then received by the light receiving unit 68b.
- the detection unit 68 determines the presence or absence of the yarn 14 (success or failure in capturing the yarn 14). In this way, by using light shielding by the thread 14 instead of reflection of light by the thread 14, the above determination can be made even for a colored thread (especially a black thread) that absorbs light.
- the light projecting unit 68a and the light receiving unit 68b are arranged perpendicular to the longitudinal direction of the yarn 14, but are arranged along the longitudinal direction of the yarn 14. May be. In this case, since not only the light projected by the light projecting unit 68a but also the light reflected by the reflecting plate 32d is blocked by the thread 14, the light intensity is greatly reduced. Therefore, it is possible to improve the determination accuracy of the presence / absence of the yarn 14.
- the light projecting unit 68a and the light receiving unit 68b are arranged so as to sandwich the light passing unit 69 (detection position) of the pipe unit 32.
- the light projected by the light projecting unit 68a is received by the light receiving unit 68b as it is after being blocked by the yarn 14.
- yarn 14 can be determined using the light blocked by the thread
- FIG. 5D it is not necessary to provide a reflecting plate, so that the cost can be reduced, and the trouble of cleaning the reflecting plate can be omitted.
- the detection unit 68 is not limited to an optical sensor as long as the yarn 14 in the pipe portion 32 can be detected.
- a contact sensor or the like can be used, but by using the optical sensor, the yarn 14 inside the pipe portion 32 can be detected. It can be easily detected from the outside.
- the pipe part 32 is comprised from the cylindrical part 32a and the connection part 32b.
- the cylindrical portion 32a is a portion on the shaft portion 31 side, and an air flow path having a circular cross section is formed.
- the connection portion 32b is connected to the end portion of the cylindrical portion 32a on the suction port 33 side, and the cross-sectional shape changes from a circular shape to a slit shape in order to connect the cylindrical portion 32a and the suction port 33.
- the suction port 33 is a slit-like opening that extends in the direction of the rotation axis of the package 22.
- the light passage portion 69 is formed in the cylindrical portion 32a of the pipe portion 32. More specifically, it is formed closer to the connection part 32b than the center of the cylindrical part 32a. Thereby, since the light passage part 69 is formed on the side close to the suction port 33 in the cylindrical part 32a, the time until the yarn 14 is detected can be shortened.
- the connecting portion 32b is wide and the position through which the yarn 14 passes differs depending on which part of the suction port 33 the yarn 14 is captured. Therefore, by providing the light passage portion 69 at a position avoiding the connection portion 32b, it is possible to prevent the detection accuracy of the yarn 14 from being lowered.
- the light passage portion 69 is formed at a position facing the detection portion 68 when the suction port 33 is at the capture position. As a result, a simple and easy layout can be realized. Further, even if the capturing position of the suction port 33 slightly changes due to the package 22 being thickened, the light passing portion 69 and the detecting portion 68 are not opposite to each other, so that the yarn 14 can be detected without any problem.
- Patent Documents 1 and 2 the detection unit is provided in the suction port. This is because the yarn sucked and captured by the suction port is quickly detected. However, with this configuration, each time the suction port turns, a load is applied to the wiring extending from the detection unit, and the wiring becomes exhausted.
- a detection unit is provided on the rear side (downstream in the suction direction, which is the opposite side of the suction port) from the shaft portion 31 or the shaft portion 31.
- the yarn sucked and captured by the suction port reaches the shaft portion, it is detected for the first time. Therefore, it takes time to detect, and more yarn is wasted or the splicing time becomes longer. .
- the position of the detection unit 68 since the position of the detection unit 68 is fixed, it is possible to determine success or failure of capturing the yarn 14 without giving a burden to the wiring. Further, since the light passage portion 69 detects the inside of the pipe portion 32 (especially the upstream side in the suction direction) when the suction port 33 is at the capture position, the yarn portion is compared with the configuration in which the detection portion 68 is provided in the shaft portion 31. The presence or absence of 14 can be detected quickly.
- a guide portion 32c is disposed inside the pipe portion 32 (cylindrical portion 32a).
- the guide portion 32 c is a plate-like member, and is disposed upstream of the light passage portion 69 in the suction direction.
- the guide part 32c is arrange
- the guide part 32c includes a first guide part 321 and a second guide part 322.
- the first guide portion 321 is provided in the vicinity of the inner edge on the side farther from the suction port 33 (the side opposite to the light passage portion 69).
- the first guide portion 321 guides the yarn 14 sucked by the suction port 33 to the second guide portion 322.
- the second guide part 322 is provided on the side close to the suction port 33 (near the light passage part 69).
- the second guide portion 322 has a recess, and the yarn 14 is guided by the recess of the second guide portion 322. Thereby, the yarn path of the yarn 14 sucked by the suction port 33 can be determined. Therefore, the detection accuracy of the yarn 14 can be improved.
- the detection part 68 and the light passage part 69 are detected when the suction port 33 captures the yarn of the package 22.
- the positional relationship is adjusted so that at least a part of 68 enters the light passage portion 69 (see FIG. 8A). Thereby, it is possible to determine whether or not the yarn 14 is successfully captured at a position close to the suction port 33. As described above, even when a transparent plate or the like is arranged in the notch, the yarn 14 can be detected with sufficient detection accuracy.
- FIG. 7A shows a state when the winding unit 17 is performing a winding operation. At this time, the contact roller 64 is not in contact with either the winding bobbin 19 or the winding drum 20.
- the unit control unit 50 is connected to the winding unit 17 side.
- the yarn 14 is wound around the package 22, and the cradle 18 is moved to separate the package 22 from the winding drum 20 (state shown in FIG. 7B).
- the unit control unit 50 ejects an air flow from the nozzle 62 of the air flow ejection unit 60 toward the central portion of the package 22 in the winding shaft direction, thereby preventing the falling.
- the unit control unit 50 turns the movement capturing unit 30a (the pipe unit 32 and the suction port 33) from the standby position to the capturing position in order to capture the yarn 14 of the package 22 (S102, capturing step).
- the unit control section 50 drives the second link section 66 with a solenoid or the like to bring the contact roller 64 into contact with the package 22 and the winding drum 20 (state shown in FIG. 8A).
- the driving force of the drum drive motor 21 can be transmitted to the package 22 via the winding drum 20 and the contact roller 64.
- the contact roller 64 is interposed therebetween, the package 22 can be reversely rotated without changing the rotation direction of the winding drum 20.
- the contact roller 64 may be brought into contact after the rotational speed is reduced to some extent.
- the unit controller 50 generates a suction flow at the suction port 33 located in the vicinity of the package 22 before and after the package 22 is rotated in the reverse direction. Thereby, the suction port 33 can capture the yarn 14 of the package 22.
- the movement capturing unit 30a is approaching the detection unit 68 by turning to the capturing position. Accordingly, the yarn 14 captured by the suction port 33 is detected by the detection unit 68 via the light passage unit 69. Thereby, the success or failure of the capture
- the movement capturing unit 30a is turned (moved) to the capturing position, the movement capturing unit 30a is stationary before the detecting unit 68, the movement capturing unit 30a is in contact with the detecting unit 68, and the movement capturing unit 30a. It is assumed that “the movement capturing unit 30 a is approaching the detection unit 68” in any state where the detection unit 68 is located inside.
- the unit control unit 50 determines whether or not the detection unit 68 has detected the yarn 14 (S103, detection step).
- the unit controller 50 performs the first standby process (S104, standby process) and the second standby process (S105, thread defect suction standby process).
- the suction capturing operation of the suction port 33 is continued.
- the first standby process a predetermined amount of the yarn 14 is prevented in order to prevent the yarn 14 from coming off (not enough) when the movement capturing unit 30a is turned downward to guide the yarn 14 to the yarn joining device 38. This is a process of continuing to suck.
- the second standby process is a process of continuously sucking a predetermined amount of the yarn 14 in order to remove the yarn defect detected by the clearer 40 after the suction (in order to prevent the yarn from remaining in the package 22).
- the unit controller 50 guides the yarn 14 to the yarn joining device 38 while releasing the suction capturing operation (S106).
- the unit controller 50 causes the lower yarn catching guide device 34 to turn simultaneously with the catching of the upper yarn to catch the lower yarn and guide the yarn joining device 38. Thereafter, the yarn joining device 38 joins the upper yarn and the lower yarn, and the winding operation is resumed (state shown in FIG. 8B).
- the contact roller 64 is preferably disposed not at the center in the winding shaft direction but at the end so as not to obstruct the capture of the yarn 14 by the suction port 33. By arranging it at the end (position A, position C) on the opposite side of the unit controller 50 among the ends in the winding axis direction, a space is created around the contact roller 64 and the contact roller 64 is on the near side. Therefore, the attaching / detaching operation or the like of the contact roller 64 can be easily performed.
- the contact roller 64 can be arranged on the front side of the apparatus or on the back side of the apparatus. When arranged on the front side of the apparatus (position A, position B), the thread 14 is slightly disturbed by the suction port 33. However, since there is a space around the contact roller 64, it is easy to attach and detach the contact roller 64. It can be carried out. Further, when the contact roller 64 is disposed on the front side of the apparatus, as shown in FIG. 8A, the contact roller 64 contacts the package 22 and the take-up drum 20 so as to be engaged with the package 22 and the take-up drum 20. Therefore, the package 22 and the winding drum 20 can be reliably brought into contact with each other.
- the configuration includes one contact roller 64, but the first modification is a configuration including three contact rollers 64. Even when three contact rollers 64 are provided, the package 22 can be rotated in the reverse direction without changing the rotation direction of the winding drum 20, as shown in FIG. Therefore, it is preferable to provide an odd number of contact rollers 64.
- the driving force of the drum drive motor 21 is transmitted to the package 22 by the contact roller 64.
- the support portion relay power transmission mechanism (power transmission mechanism) 70 is used.
- the driving force of the drum drive motor 21 is transmitted to the package 22 via the cradle 18 (specifically, a rotation support portion).
- the cradle 18 specifically, a rotation support portion.
- the support relay power transmission mechanism 70 includes a power transmission shaft 71, a belt 72, a power transmission shaft 73, a gear 74, a gear 75, a clutch 76, and a power transmission shaft 77.
- the power transmission shaft 71 is a rotating shaft of the winding drum 20 and rotates integrally with the winding drum 20.
- the driving force transmitted to the power transmission shaft 71 is transmitted to the power transmission shaft 73 via the belt 72. Since the belt 72 is interposed, the rotational directions of the power transmission shaft 71 and the power transmission shaft 73 are the same.
- the driving force transmitted to the power transmission shaft 73 is transmitted to the clutch 76 via a gear 74 attached to the power transmission shaft 73 and a gear 75 meshing with the gear 74. Since the gear 75 meshes with the gear 74, it rotates in the opposite direction to the power transmission shaft 71 and the like.
- the clutch 76 can be switched between a state in which the transmitted driving force is transmitted to the power transmission shaft 77 and a state in which the clutch 76 is not transmitted to the power transmission shaft 77.
- the power transmission shaft 77 is configured to rotate integrally with a rotation support portion that rotatably supports the package. Since the power transmission shaft 77 rotates in the same direction as the gear 75 (the direction opposite to the power transmission shaft 71), the package 22 rotates in the direction opposite to the winding drum 20.
- the driving force of the drum drive motor 21 can be transmitted to the package 22.
- the package 22 can be reversely rotated quickly by providing the clutch 76, the time taken for the yarn splicing or the like can be shortened and the winding efficiency can be improved.
- the support part relay power transmission mechanism 70 of a 2nd modification is an example, and can change a component suitably.
- the above-described yarn drawing device 28 includes the upper yarn catching and guiding device 30 and the detection unit 68.
- the upper yarn catching and guiding device 30 includes a movement catching portion 30a that moves from the standby position to the catching position on the winding portion 17 side and sucks and catches the winding yarn that is the yarn on the winding portion 17 side.
- the detection unit 68 detects the wound yarn captured by the upper thread capture guide device 30.
- the movement capture unit 30a approaches the detection unit 68 by moving from the standby position to the capture position (that is, the detection unit 68 is provided other than the movement capture unit 30a), and the detection unit 68 moves to the capture position. The presence / absence of the wound yarn inside the movement capturing section 30a is detected.
- the detection unit 68 is arranged at a position different from the movement capturing unit 30a, even if the movement capturing unit 30a moves, the wiring connected to the detection unit 68 is not burdened. Moreover, since it is not necessary to consider the burden of wiring, the winding yarn can be detected on the side near the suction port 33 of the movement capturing unit 30a, so that the time required for the yarn joining operation can be shortened.
- the winding unit 17 of the automatic winder (yarn winding device) 1 includes a cradle (supporting unit) 18, a winding drum (auxiliary roller) 20, and a drum drive motor ( Drive source) 21, a traverse groove (traverse mechanism) of the winding drum 20, and a power transmission mechanism (contact roller 64 or support relay power transmission mechanism 70).
- the cradle 18 rotatably supports the package 22.
- the winding drum 20 contacts the package 22 and assists in winding the yarn 14 while rotating the package 22 in a driven manner.
- the drum drive motor 21 rotates the take-up drum 20.
- the traverse groove causes the yarn 14 to traverse.
- the power transmission mechanism transmits the driving force generated from the drum drive motor 21 to the package 22 to rotate the package 22.
- the yarn 14 of the package 22 can be captured in a state where the package 22 is separated from the winding drum 20, the probability that the yarn 14 does not stick to the package 22 and fails to capture the yarn 14 can be reduced. . Further, by using the power transmission mechanism, it is possible to reduce the cost as compared with a configuration in which the drum drive motor 21 is separately provided. Furthermore, by controlling the drum drive motor 21, the rotational speed and direction of the package 22 can be controlled.
- the power transmission mechanism contacts the surface of the winding drum 20, thereby contacting the package 22 with a driving force for rotating the winding drum 20 by the drum driving motor 21.
- the driving force for rotating the take-up drum 20 can be transmitted to the package 22 with a simple configuration.
- the contact roller 64 is in contact with the surface of the winding drum 20 and the surface of the package 22, thereby transmitting a driving force for rotating the winding drum 20 to the package 22.
- the contact roller 64 contacts the surface of the end portion of the package 22 in the winding axis direction.
- the contact roller 64 can be disposed at a position that does not interfere with the trapping of the yarn end of the package 22.
- the automatic winder 1 includes a unit control unit (control unit) 50 that controls at least the winding unit 17 and is disposed on one side of the package 22 in the winding axis direction.
- the contact roller 64 contacts the surface of the end of the package 22 in the winding axis direction on the side where the unit control unit 50 is not disposed.
- the unit control unit 50 (the housing of the unit control unit 50) is not located in the vicinity of the contact roller 64, there is a space, so that the contact roller 64 can be easily attached and detached.
- the contact roller 64 is preferably in contact with the surface of the package 22 on the front side of the apparatus.
- the contact roller 64 may contact the surface of the package 22 on the back side of the apparatus.
- the yarn 14 on the front side of the device of the package 22 is normally caught, so that the contact roller 64 can be arranged at a position that does not interfere with the catching of the yarn 14.
- an odd number (for example, one) of the contact rollers 64 is arranged.
- the package 22 can be rotated in the reverse direction without changing the direction of rotation of the winding drum 20.
- the portion of the contact roller 64 that contacts the package 22 is a soft member.
- the power transmission mechanism is a support part relay power transmission mechanism 70 that transmits the driving force of the drum drive motor 21 to the package 22 via the cradle 18 (specifically, the rotation support part).
- the driving force can be transmitted without bringing the contact roller 64 into contact with the surfaces of the package 22 and the winding drum 20, the surface of the package 22 can be prevented from being damaged.
- the support portion relay power transmission mechanism 70 includes a clutch 76 capable of switching between transmission and non-transmission of the driving force of the drum drive motor 21.
- the package 22 can be quickly reverse-rotated, so that the time required for piecing can be shortened and the winding efficiency can be improved.
- an air flow is ejected from the end portion in the winding axis direction of the package 22 toward the center of the package 22 in the space generated by the separation.
- An air flow ejection part 60 is provided.
- the automatic winder 1 includes the yarn supplying unit 15, the yarn joining device 38, and the upper yarn catching guide device (yarn catching guide device) 30.
- the yarn supplying unit 15 is provided with a yarn supplying bobbin 16 around which a yarn 14 for winding by the winding unit 17 is wound.
- the yarn joining device 38 joins the yarn 14 on the winding unit 17 side and the yarn 14 on the yarn feeding unit 15 side when the yarn 14 is divided between the winding unit 17 and the yarn feeding unit 15. .
- the upper yarn catching and guiding device 30 catches the yarn 14 on the winding unit 17 side and guides it to the yarn joining device 38.
- the automatic winder 1 includes a detection unit 68 that determines whether the upper yarn catching and guiding device 30 has successfully caught the upper yarn.
- the detection unit 68 is fixed to the winding unit 17 and detects the presence or absence of the yarn 14 inside the upper yarn catching and guiding device 30 when the upper yarn catching and guiding device 30 catches the upper yarn.
- the suction port 33 can be quickly moved to the yarn joining device 38 side. Therefore, the winding time can be improved by shortening the time required for piecing.
- the upper thread catching and guiding device 30 includes a suction port 33 that sucks and catches the thread on the winding unit 17 side between the package 22 and the winding drum 20. A part of the edge of the suction port 33 is extended, and the extended part is located on the winding drum 20 side when the yarn on the winding unit 17 side is captured.
- the contact roller 64 is brought into contact with the package 22 and the take-up drum 20, but instead of the package 22, it comes into contact with members (the take-up bobbin 19 and the power transmission shaft 77) that rotate integrally with the package 22. Can be made. Further, instead of the take-up drum 20, a member (power transmission shaft 71 or the like) that rotates integrally with the take-up drum 20 may be brought into contact.
- the traverse is performed by the winding drum 20 in which the traverse groove is formed, but an arm-type, belt-type, or rotary-type traverse device may be used.
- a roller in which no traversing groove is formed can be used as the auxiliary roller.
- the present invention can be applied not only to an automatic winder but also to other yarn winding devices such as a winding machine and a spinning machine (for example, an air spinning machine and an open-end spinning machine).
- a winding machine and a spinning machine for example, an air spinning machine and an open-end spinning machine.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
Abstract
Description
28 糸引出装置
30 上糸捕捉案内装置(巻取糸捕捉案内装置)
30a 移動捕捉部
31 軸部
32 パイプ部
32a 円筒部
32b 接続部
32c ガイド部
32d 反射板
33 吸引口
50 ユニット制御部
68 検出部
68a 投光部
68b 受光部
69 光通過部
Claims (15)
- 糸を巻き取ってパッケージを形成する巻取部から糸を引き出す糸引出装置において、
待機位置から前記巻取部側の捕捉位置まで移動して、前記巻取部側の糸である巻取糸を吸引して捕捉する移動捕捉部を備えた巻取糸捕捉案内装置と、
前記巻取糸捕捉案内装置により捕捉された前記巻取糸を検出する検出部と、
を備え、
前記移動捕捉部は、待機位置から捕捉位置まで移動することで前記検出部に接近し、前記検出部は、捕捉位置まで移動した前記移動捕捉部の内部の巻取糸の有無を検出することを特徴とする糸引出装置。 - 請求項1に記載の糸引出装置であって、
前記検出部は、
前記移動捕捉部の内部の検出位置に対して投光を行う投光部と、
前記投光部から投光されて前記検出位置で反射した光、又は前記投光部から投光されて前記検出位置を通過した光を受光する受光部と、
を備え、
前記移動捕捉部には、前記投光部から投光された光を通過させる光通過部が形成されていることを特徴とする糸引出装置。 - 請求項2に記載の糸引出装置であって、
前記移動捕捉部は、
前記パッケージの外周面に接近して当該パッケージの糸端を吸引する吸引口と、
前記吸引口と接続されるパイプ部と、
を備え、
前記巻取糸捕捉案内装置は、前記吸引口を前記パッケージに接近させる際の基準点となる軸部を更に備え、
前記光通過部は前記パイプ部に形成されていることを特徴とする糸引出装置。 - 請求項3に記載の糸引出装置であって、
前記パイプ部の内部には、前記吸引口が吸引した巻取糸を前記検出位置に案内するガイド部が設けられていることを特徴とする糸引出装置。 - 請求項4に記載の糸引出装置であって、
前記光通過部は、前記パイプ部の少なくとも一部に形成された透明板であることを特徴とする糸引出装置。 - 請求項4に記載の糸引出装置であって、
前記光通過部は、前記パイプ部の少なくとも一部に形成された貫通状の切欠きであることを特徴とする糸引出装置。 - 請求項5又は6に記載の糸引出装置であって、
前記吸引口は、前記パッケージの回転軸方向に延びるスリット状の開口部であり、
前記パイプ部は、
断面円状の空気流路が形成された円筒部と、
前記円筒部の端部に接続され、前記円筒部と前記開口部とを接続するために断面形状が円状からスリット状に変化する接続部と、
を備え、
前記光通過部は、前記円筒部の前記接続部側に形成されることを特徴とする糸引出装置。 - 請求項7に記載の糸引出装置であって、
前記光通過部は、前記円筒部の周面であって前記巻取糸捕捉案内装置が巻取糸を捕捉する際に前記検出部に対面する側の周面に設けられていることを特徴とする糸引出装置。 - 請求項8に記載の糸引出装置であって、
前記円筒部の内部であって、前記検出位置を挟んで前記光通過部の反対側には、投稿された光を反射する反射部が設けられていることを特徴とする糸引出装置。 - 請求項1から9までの何れか一項に記載の糸引出装置と前記巻取部とを備えた糸巻取装置であって、
前記検出部が前記巻取部に取り付けられていることを特徴とする糸巻取装置。 - 請求項10に記載の糸巻取装置であって、
前記巻取部が巻き取るための糸が配置される給糸部と、
前記巻取部と前記給糸部との間で糸が分断された際に、巻取糸と、前記給糸部側の糸と、を継ぐ糸継装置と、
を更に備えており、
前記糸引出装置は、前記巻取糸を前記糸継装置に案内することを特徴とする糸巻取装置。 - 請求項10又は11に記載の糸巻取装置であって、
前記検出部は、前記巻取部の金属部分に取り付けられていることを特徴とする糸巻取装置。 - 請求項10から12までの何れか一項に記載の糸巻取装置であって、
前記巻取部は、
パッケージを回転可能に支持する支持部と、
前記パッケージに接触して糸の巻取りを補助しつつ、当該パッケージを従動回転させる補助ローラと、
前記補助ローラを回転させる駆動源と、
糸を綾振りさせる綾振り機構と、
前記パッケージと前記補助ローラとを離間させた状態において、前記駆動源から生じた駆動力を前記パッケージに伝達して、当該パッケージを回転させる動力伝達機構と、
を備えることを特徴とする糸巻取装置。 - 請求項11から13までの何れか一項に記載の糸巻取装置に行わせる糸継方法であって、
巻取糸を捕捉するために前記巻取糸捕捉案内装置を前記パッケージに近づけて当該パッケージを巻取方向とは逆方向に回転させる吸引捕捉動作を実行させる捕捉工程と、
前記巻取糸捕捉案内装置によって、巻取糸が吸引捕捉されたことを検知する検知工程と、
巻取糸が吸引捕捉されたことが検知されてから、設定された時間が経過するまで、前記吸引捕捉動作を継続する待機工程と、
前記待機工程の終了後に前記巻取糸を前記糸継装置に案内する案内行程と、
を含むことを特徴とする糸継方法。 - 請求項14に記載の糸継方法であって、
前記待機工程の後に、糸欠陥が前記巻取糸捕捉案内装置によって吸引されるまで、更に待機させる糸欠陥吸引待機工程を更に含むことを特徴とする糸継方法。
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CN201480046359.0A CN105473480B (zh) | 2013-08-29 | 2014-02-04 | 纱线拉出装置、纱线卷取装置以及接头方法 |
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EP3263501A1 (en) | 2016-06-27 | 2018-01-03 | Murata Machinery, Ltd. | Textile machine |
JP2018039672A (ja) * | 2016-08-24 | 2018-03-15 | ザウラー ジャーマニー ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフトSaurer Germany GmbH & Co. KG | 巻取りパッケージに巻き上げられた糸の糸端を吸い込むための吸引装置、及び吸引装置の吸引チャネル部分をセンシングによって監視するための方法 |
CN109837619A (zh) * | 2017-11-27 | 2019-06-04 | 塞维欧纺织机械股份公司 | 自由端型纺纱机和在自由端型纺纱机中修补纱线的方法 |
EP3705431A1 (en) | 2019-03-06 | 2020-09-09 | Murata Machinery, Ltd. | Waste yarn emission amount output device and textile machine |
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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 |
DE102018125327A1 (de) * | 2018-10-12 | 2020-04-16 | Saurer Spinning Solutions Gmbh & Co. Kg | Fadenrohr für eine Auflaufspulen herstellende Textilmaschine |
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CN105473480B (zh) | 2018-01-02 |
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