EP2749517B1 - Fileuse - Google Patents
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- Publication number
- EP2749517B1 EP2749517B1 EP13196501.4A EP13196501A EP2749517B1 EP 2749517 B1 EP2749517 B1 EP 2749517B1 EP 13196501 A EP13196501 A EP 13196501A EP 2749517 B1 EP2749517 B1 EP 2749517B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- guide
- spun
- spun yarn
- spinning
- 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
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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
- B65H51/00—Forwarding filamentary material
- B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
- B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
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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
- B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
- B65H69/06—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing
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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 present invention relates to a spinning machine having a layout in which a direction of a yarn path is greatly different between the upstream and the downstream of a yarn pooling device.
- the present invention more particularly relates to a structure that appropriately performs yarn joining in the spinning machine having this layout.
- a spinning machine including a yarn pooling device that temporarily pools a spun yarn by winding the spun yarn around a rotatable roller is known in the art.
- Japanese Patent Application Laid-open No. 2004-277944 discloses this type of spinning machine.
- the spinning machine disclosed in Japanese Patent Application Laid-open No. 2004-277944 includes a yarn joining carrier that has a yarn joining device that joins a spun yarn from a spinning device and a spun yarn from a package.
- a yarn joining carrier moves to the corresponding spinning unit and performs yarn joining using the yarn joining device.
- the spun yarn is supplied to the yarn pooling device.
- a movable guide can be used.
- the spinning machine disclosed in Japanese Patent Application Laid-open No. 2004-277944 includes a movable guide, which is driven by an air cylinder or the like, on either the upstream or the downstream of the yarn pooling device. By guiding the spun yarn to the yarn pooling device with the movable guide, the spun yarn can be re-pooled in the yarn pooling device.
- the spinning machine disclosed in Japanese Patent Application Laid-open No. 2012-31523 does not include a yarn joining device. With this layout, because the yarn path is greatly different between the upstream and the downstream of the yarn pooling device, it becomes difficult to guide the spun yarn to the yarn pooling device after starting the yarn joining or the like.
- the direction of the yarn path does not change between the upstream and the downstream of the yarn pooling device. Therefore, the spun yarn can be guided to the yarn pooling device by bringing one movable guide close to the yarn pooling device.
- EP 2 213 773 A describes a spinning machine having a suction pipe for sucking and catching a yarn end of spun yarn and for guiding the yarn end to a yarn splicing device.
- the spinning machine includes a yarn accumulating roller and an upstream guide.
- the upstream guide is placed at an advanced position until the suction pipe completes the guiding of the yarn to the yarn splicing device. In the advanced position the spun yarn is held by the upstream guide such that it is disengaged from a yarn hooking member of the yarn accumulating device.
- upstream and downstream respectively, mean the upstream and the downstream in a traveling direction of a fiber bundle and a spun yarn at the time of spinning.
- a spinning machine (not shown) includes a plurality of spinning units 2 arranged in parallel and a main control device (not shown) that manages the spinning units 2 in a centralized manner.
- Each spinning unit 2 forms a spun yarn 10 by spinning a fiber bundle 8 supplied from a drafting device 7 using a spinning device 9, and forms a package 50 by winding the spun yarn 10 using a winding section 26.
- each spinning unit 2 includes the drafting device 7, the spinning device 9, a yarn pooling device 22, a yarn joining device 23, a yarn monitoring device 25, and the winding section 26, arranged sequentially from the upstream to the downstream.
- the structural components included in the spinning unit 2 are controlled by a unit controller (not shown) arranged in the spinning unit 2.
- the drafting device 7 includes, sequentially from the upstream, four draft rollers, namely, a back roller 16, a third roller 17, a middle roller 19 with a rubber apron belt 18, and a front roller 20. Each of the draft rollers is driven to rotate at a predetermined rotation speed.
- the drafting device 7 further includes opposing rollers arranged respectively facing the draft rollers.
- the drafting device 7 transports a sliver 15 supplied from a sliver case (not shown) via a sliver guide (not shown) by nipping the sliver 15 between the rotating draft rollers and the opposing rollers respectively facing the draft rollers, thus forming a fiber bundle 8 by stretching (drafting) the sliver 15 until a predetermined fiber amount (or thickness) is obtained.
- the spinning device 9 is arranged immediately downstream of the front roller 20.
- the fiber bundle 8 drafted by the drafting device 7 is supplied to the spinning device 9.
- the spinning device 9 forms the spun yarn 10 by twisting the fiber bundle 8 supplied from the drafting device 7.
- an air spinning device is employed, which twists the fiber bundle 8 by using a swirling airflow.
- the spinning device 9 includes a fiber guiding section, a swirling airflow generating nozzle, and a hollow guide shaft, although a detailed description and drawing thereof are omitted.
- the fiber guiding section guides the fiber bundle 8 supplied from the drafting device 7 to a spinning chamber inside the spinning device 9.
- the swirling airflow generating nozzle is arranged around a path of the fiber bundle 8, and generates a swirling airflow inside the spinning chamber. Ends of fibers of the fiber bundle 8 inside the spinning chamber is reversed and swirled by the swirling airflow.
- the hollow guide shaft guides the spun yarn 10 that is spun in the above manner from the spinning chamber to outside the spinning device 9.
- the spun yarn 10 is sent toward the winding section 26.
- a first guide 61 that guides the spun yarn 10 is arranged downstream of the delivery roller 21.
- the first guide 61 guides the spun yarn 10 to the yarn pooling device 22.
- the first guide 61 is movable to pull the spun yarn 10 to the yarn pooling device 22 when yarn joining or the like is necessary to be performed.
- the first guide 61 includes an arm portion 61a, a guide portion 61b, and a contact portion 61c.
- the arm portion 61a is an elongated flat plate including a base end (root end) that is rotatably supported.
- the first guide 61 is rotatable in a direction of an arrow (upward direction in a height direction of the device) illustrated in FIG. 3 by being driven by a guide driving motor (driving section, not shown) as a driving source.
- a position of the first guide 61 is switchable between a normal position (position illustrated in FIG. 2 ) that is a position when winding the spun yarn 10 and a retracted position that is a position retracted from the normal position.
- a guide groove is formed on the guide portion 61b to guide the spun yarn 10.
- a stopper (regulating member) 70 that prevents the first guide 61 from excessively rotating (regulates the first guide 61 to be appropriately positioned at the normal position) is arranged near the yarn pooling device 22. At the normal position, the contact portion 61c of the first guide 61 is in contact with the stopper 70.
- the yarn pooling device 22 is arranged downstream of the first guide 61.
- the yarn pooling device 22 includes a yarn pooling roller 41, an electric motor 42 that drives the yarn pooling roller 41 to rotate, and a yarn hooking member 43.
- the spun yarn 10 is temporarily pooled by being wound around the outer circumferential surface of the yarn pooling roller 41.
- the yarn hooking member 43 is mounted on a downstream end portion of the yarn pooling roller 41.
- the yarn hooking member 43 is supported in a rotatable manner relatively to the yarn pooling roller 41.
- a permanent magnet is attached to any one of the yarn hooking member 43 and the yarn pooling roller 41, and a magnetic hysteresis member is attached to the other of the yarn hooking member 43 and the yarn pooling roller 41. These magnetic means generate a torque against a relative rotation of the yarn hooking member 43 with respect to the yarn pooling roller 41.
- the yarn hooking member 43 is rotated relatively to the yarn pooling roller 41 so that the spun yarn 10 wound around the yarn pooling roller 41 can be unwound.
- the yarn pooling roller 41 and the yarn hooking member 43 are integrally rotated so that the spun yarn 10 is wound around the yarn pooling roller 41.
- the yarn pooling device 22 operates such that the spun yarn 10 is unwound when the yarn tension on the downstream is increased, and the spun yarn 10 is prevented from being unwound when the yarn tension is decreased (when the spun yarn 10 is about to have a slack). With this operation, the yarn pooling device 22 can remove the slack of the spun yarn 10 and apply an appropriate tension on the spun yarn 10. Furthermore, because the yarn hooking member 43 operates to absorb a variation of the tension applied on the spun yarn 10 between the yarn pooling device 22 and the winding section 26, the variation of the tension is prevented from affecting the spun yarn 10 between the spinning device 9 and the yarn pooling device 22.
- the yarn traveling direction on the upstream of the yarn pooling device 22 is substantially a horizontal direction with respect to a machine installation surface
- the yarn traveling direction on the downstream of the yarn pooling device 22 is an obliquely upward direction. That is, a direction of a yarn path (first yarn path) of the spun yarn 10 that is being wound greatly changes (bent) (by 90 degrees or larger) by the yarn pooling device 22.
- a regulating guide 62 which suppresses a behavior of the spun yarn 10 unwound from the yarn pooling roller 41, is arranged downstream of the yarn pooling roller 41.
- the regulating guide 62 includes a second guide 62a and a third guide 62b.
- a separate regulating guide (for example, a regulating guide having an opening larger than that of the regulating guide 62) can be arranged in addition to the second guide 62a and the third guide 62b.
- the second guide 62a is rotatable on a plane perpendicular to the yarn traveling direction.
- a position of the second guide 62a is switchable between a normal position (indicated by a solid line in FIG. 2 ), which is a position at the time of winding the spun yarn 10, and a retracted position (indicated by a dashed double-dotted line in FIG. 2 ), which is a position retracted from the normal position.
- the second guide 62a pulls the spun yarn 10 to the yarn pooling device 22 together with the first guide 61.
- a method and structure for moving the second guide 62a is not limited.
- the second guide 62a is moved by transmitting the driving force of the above-mentioned guide driving motor via a cam or the like.
- a guide groove for guiding the spun yarn 10 is formed on the second guide 62a.
- the third guide 62b is arranged further downstream of the second guide 62a and adjacent to the second guide 62a.
- the third guide 62b is fixed to a frame of the spinning unit 2 or the like. Similar to the second guide 62a, a guide groove is formed on the third guide 62b.
- the second guide 62a is at the normal position, the guide groove of the second guide 62a and the guide groove of the third guide 62b face each other. With this configuration, the spun yarn 10 can be guided by the guide groove of the second guide 62a and the guide groove of the third guide 62b.
- the yarn joining device 23 is arranged downstream of the regulating guide 62. When a breakage of the spun yarn 10 occurs between the spinning device 9 and the package 50, the yarn joining device 23 joins the spun yarn 10 (first yarn) from the spinning device 9 and a yarn (second yarn) from the package 50.
- the yarn joining device 23 is a slicer device that twists ends of the yarns together by a swirling airflow generated by a compressed air.
- the yarn joining device 23 is not limited to the above-mentioned slicer device, but can be a mechanical knotter or the like, for example.
- the spinning unit 2 includes a transporting device that transports the spun yarn 10 to the yarn joining device 23.
- the transporting device includes a first transporting device 27 that transports the first yarn, and a second transporting device 28 that transports the second yarn to the yarn joining device 23.
- the first transporting device 27 includes a base portion that is pivotably supported, and can pivot in a vertical direction around the base portion as a center.
- the first transporting device 27 is hollow, connected to a not shown blower, and can generate a suction airflow.
- the first transporting device 27 catches an end of the first yarn sent by the delivery roller 21 by pivoting in the vertical direction (see a dashed double-dotted line in FIG. 1 ).
- the delivery roller 21 and the nip roller are in contact with each other.
- the first transporting device 27 transports the first yarn to the yarn joining device 23 by pivoting in the vertical direction.
- the second transporting device 28 includes a base portion that is pivotably supported, and can pivot in the vertical direction around the base portion as a center.
- the second transporting device 28 is also hollow, connected to a not shown blower, and can generate a suction airflow.
- the second transporting device 28 catches an end of the second yarn from the package 50 by pivoting in the vertical direction (see a dashed double-dotted line in FIG. 1 ). After catching the second yarn, the second transporting device 28 transports the second yarn to the yarn joining device 23 by pivoting in the vertical direction.
- the yarn joining device 23 By driving the yarn joining device 23 in this state, the first yarn and the second yarn are joined to bring the spun yarn 10 in a continuous state between the spinning device 9 and the package 50. Due to this, the winding of the spun yarn 10 can be resumed to form the package 50.
- a yarn detection sensor can be arranged on at least one of the first transporting device 27 or the second transporting device 28 to determine whether the spun yarn 10 is successfully caught.
- the unit controller stops a drafting operation performed by the drafting device 7 and a spinning operation performed by the spinning device 9. If the first transporting device 27 has already started to move toward the normal position, the unit controller moves the first transporting device 27 to a catching position again. In contrast, if the first transporting device 27 has remained at the catching position, the unit controller controls the first transporting device 27 to stand by as it is.
- the unit controller performs a cleaning operation of the spinning device 9. Specifically, the unit controller separates the hollow guide shaft and the fiber guiding section from each other, thus opening the spinning chamber. The unit controller controls the spinning device 9 to clean an end of the hollow guide shaft by blowing air to the end of the hollow guide shaft exposed by opening the spinning chamber. Thereafter, the unit controller returns the hollow guide shaft and the fiber guiding section to the spinning position (resolves a separated state), and controls the drafting device 7 and the spinning device 9 to resume the drafting operation of the drafting device 7 and the spinning operation performed by the spinning device 9.
- a failure can be prevented from occurring when catching the first yarn by the first transporting device 27 again.
- the unit controller upon determining, based on a detection result of the yarn detection sensor arranged on the second transporting device 28, that catching of the second yarn has failed, judges that guiding out of the second yarn from the package 50 has failed and controls the spinning device 9 to not resume the spinning operation. The unit controller then controls operations to be performed by the winding section 26, a yarn guiding-out device 54, and the second transporting device 28 to retry guiding out of the second yarn from the package 50.
- the unit controller When catching of the first yarn or the second yarn has continuously failed a predetermined number of times or more even after performing the above-mentioned processes, the unit controller displays an alarm on a not shown display device and stops the operation of the spinning unit 2. An operator takes a measure on the spinning unit 2 to resume the operation of the spinning unit 2.
- the yarn monitoring device 25 is arranged downstream of the yarn joining device 23.
- the yarn monitoring device 25 monitors the thickness of the traveling spun yarn 10 with a not shown capacitance type sensor.
- the yarn monitoring device 25 transmits a yarn-defect detection signal to the unit controller.
- the unit controller drives a cutter 24 (yarn cutting device) arranged near the yarn monitoring device 25 to cut the spun yarn 10.
- the yarn monitoring device 25 is, for example, a capacitance type sensor, but can be, for example, an optical transmission type sensor that monitors the thickness of the yarn. Even a foreign matter included in the spun yarn 10 can be monitored as the yarn defect.
- the winding section 26 is arranged downstream of the yarn pooling device 22.
- the winding section 26 includes a cradle arm 52, a winding drum 53, and the yarn guiding-out device 54. A direction of a yarn path from the yarn pooling device 22 to the winding section 26 is changed (bent) and guided by a downstream guide 63.
- the cradle arm 52 rotatably supports a winding tube 51 on which the spun yarn 10 is to be wound.
- the cradle arm 52 is pivotable around a base portion as a center of pivoting. With this configuration, even when a diameter of the package 50 is increased by winding the spun yarn 10 around the winding tube 51, the winding of the spun yarn 10 can be appropriately continued.
- the winding drum 53 rotates while being in contact with an outer circumferential surface of the winding tube 51 or the package 50 by a driving force transmitted from a not shown winding-drum driving motor.
- a not shown traverse groove is formed on the outer circumferential surface of the winding drum 53 and the spun yarn 10 can be traversed to a predetermined width using this traverse groove.
- the winding section 26 can form the package 50 by winding the spun yarn 10 around the winding tube 51 while traversing the spun yarn 10.
- the yarn guiding-out device 54 and a guide plate 55 are arranged near the winding drum 53.
- the yarn guiding-out device 54 guides out the end of the yarn on a surface of the package 50 when performing yarn joining or the like.
- the yarn guiding-out device 54 Upon receiving an instruction for performing yarn joining or the like, the yarn guiding-out device 54 generates an airflow along the surface of the package 50.
- the end of the yarn on the surface of the package 50 is extracted and then guided in the downward direction.
- the end of the yarn guided out by the yarn guiding-out device 54 is guided along the guide plate 55, and hence catching of the spun yarn 10 by the second transporting device 28 can be reliably performed.
- the second transporting device 28 can be configured to perform guiding out of the end of the yarn instead of arranging the yarn guiding-out device 54.
- a process performed by each structural member when performing the yarn joining particularly, a process of guiding (pulling) the spun yarn 10 to the yarn pooling device 22 by the first guide 61 and the second guide 62a (collectively referred to as a "movable guide 60" in some cases) is explained below.
- a process of guiding (pulling) the spun yarn 10 to the yarn pooling device 22 by the first guide 61 and the second guide 62a (collectively referred to as a "movable guide 60" in some cases) is explained below.
- FIGS. 4 to 7 to simplify the drawings, the processes are explained one after another, that is, the next process is performed after the current process is completed. However, the next process can be started before the current process is completed.
- the spun yarn 10 is in a cut state, and hence the yarn joining is performed.
- the winding operation of the package 50 performed by the winding section 26, the drafting operation performed by the drafting device 7, and the spinning operation performed by the spinning device 9 are also stopped.
- the movable guide 60 is moved from the normal position to the retracted position. The end of the yarn of the package 50 is then guided out by the yarn guiding-out device 54.
- the second transporting device 28 catches the end of the second yarn guided out by the yarn guiding-out device 54 by rotating in the vertical direction. Thereafter, the second transporting device 28 returns to the original position (normal position) while suctioning the second yarn guided out by the yarn guiding-out device 54 so that the second yarn is guided to a position where the second yarn can be joined with the first yarn by the yarn joining device 23.
- the first transporting device 27 rotates in the downward direction to catch the end of the first yarn sent by the delivery roller 21. Upon catching the end of the first yarn, the first transporting device 27 returns to the original position (normal position) while suctioning the first yarn. With this configuration, as illustrated in FIG. 5 , the first yarn and the second yarn can be guided to the yarn joining device 23.
- the unit controller judges that the guiding-out of the second yarn from the package 50 has failed and controls the spinning device 9 to not resume the spinning operation. The unit controller then controls the operations to be performed by the winding section 26, the yarn guiding-out device 54, and the second transporting device 28 to retry guiding out of the second yarn from the package 50.
- the first transporting device 27 guides the first yarn after the second transporting device 28 guides the second yarn.
- the first transporting device 27 can perform the guiding operation first.
- a thin solid line in FIG. 5 indicates a trajectory of the first transporting device 27 when the first transporting device 27 returns to the original position.
- the yarn joining device 23, the first guide 61, and the regulating guide 62 are arranged near the trajectory of the first transporting device 27.
- a positional relationship between the members is determined such that the first transporting device 27 does not collide with these members even when the first transporting device 27 rotates in the upward direction or the downward direction.
- the yarn pooling device 22 is widely separated from the yarn path (second yarn path) along which the first transporting device 27 transports the first yarn to the yarn joining device 23.
- the yarn pooling device cannot be separated from the second yarn path because the upstream guide or the downstream guide of the yarn pooling device remains as guiding the spun yarn even on the same second yarn path.
- the first guide 61 After the first transporting device 27 and the second transporting device 28, respectively, transport the first yarn and the second yarn to the yarn joining device 23, the first guide 61 is moved from the retracted position to the normal position by driving of the guide driving motor (see FIG. 6 ). With this operation, the first guide 61 guides the spun yarn 10 with the guide groove of the guide portion 61b of the first guide 61 catching the spun yarn 10. As a result, the spun yarn 10 can be brought close to the yarn pooling device 22. As illustrated in FIG. 6 , the spun yarn 10 is not guided (not pulled) to the yarn pooling device 22 (specifically, the yarn hooking member 43) only with the movement of the first guide 61 to the normal position.
- a position of the first transporting device 27 when the first transporting device 27 catches the first yarn at downstream of the delivery roller 21 is lower than the retracted position of the first guide 61 in a device height direction (vertical direction in FIG. 4 ).
- the retracted position of the first guide 61 in the device height direction is between the first transporting device 27 at the time of catching the first yarn and the yarn joining device 23.
- the first transporting device 27 can cause the first guide 61 to move to the normal position at the same time when it transports the first yarn to the yarn joining device 23.
- trajectories of the first transporting device 27 and the first guide 61 are set not to intersect with each other so that the first transporting device 27 and the first guide 61 do not collide with each other.
- the second guide 62a moves from the retracted position to the normal position (see FIG. 7 ).
- the spun yarn 10 can be brought closer to the yarn pooling device 22. This enables the spun yarn 10 to be hooked at the yarn hooking member 43 of the yarn pooling device 22 so that the spun yarn 10 is pooled by the yarn pooling roller 41 and the slack of the spun yarn 10 formed during the yarn joining can be removed.
- the unit controller drives again the winding drum 53 and the like that have been stopped. With this operation, winding of the package 50 can be resumed.
- the spinning machine includes the spinning device 9, the winding section 26, the yarn pooling device 22, the yarn joining device 23, the transporting device, and the movable guide 60.
- the spinning device 9 forms the spun yarn 10 by twisting the fiber bundle 8.
- the winding section 26 winds the spun yarn 10 formed by the spinning device 9 around the winding tube 51 to form the package 50.
- the yarn pooling device 22 pools the spun yarn 10 between the spinning device 9 and the winding section 26.
- the yarn joining device 23 joins the spun yarn 10 from the spinning device 9 and the spun yarn 10 from the winding section 26.
- the transporting device transports the spun yarn 10 to the yarn joining device 23.
- the movable guide 60 pulls the spun yarn 10 to the yarn pooling device 22.
- the direction of the first yarn path is changed by the yarn pooling device 22.
- the yarn pooling device 22 is arranged at a position separated from the second yarn path.
- the movable guide 60 pulls the spun yarn 10 on the second yarn path to the yarn pooling device 22.
- the spun yarn 10 can be pulled to the yarn pooling device 22 by the movable guide 60 even in the spinning machine having the above-mentioned layout, and hence the yarn joining can be performed automatically.
- the movable guide 60 includes the first guide 61 arranged upstream of the yarn pooling device 22 in the yarn traveling direction and the second guide 62a arranged downstream of the yarn pooling device 22 in the yarn traveling direction.
- the position of each of the first guide 61 and the second guide 62a is switchable between the normal position, which is the position when the winding section 26 winds the spun yarn 10, and the retracted position, which is the position retracted from the normal position.
- the spun yarn 10 can be pulled to the yarn pooling device 22 by the two guides located upstream and downstream of the yarn pooling device 22. Therefore, the spun yarn 10 can be reliably guided to the yarn pooling device 22 even with the above-mentioned layout.
- the spinning machine includes the guide driving motor that drives the first guide 61 from the retracted position to the normal position and then drives the second guide 62a from the retracted position to the normal position.
- the second guide 62a can be moved to guide the spun yarn 10 to the yarn pooling device 22 after moving the first guide 61 to bring the spun yarn 10 close to the yarn pooling device 22.
- the yarn pooling device 22 includes the yarn pooling roller 41 and the yarn hooking member 43.
- the yarn pooling roller 41 winds the spun yarn 10 therearound.
- the yarn hooking member 43 winds the spun yarn 10 around an outer circumferential surface of the yarn pooling roller 41 by integrally rotating with the yarn pooling roller 41 in a state in which the yarn hooking member 43 is in contact with the spun yarn 10.
- the movable guide 60 pulls the spun yarn 10 to a position, where the yarn hooking member 43 is not in contact with the spun yarn 10 at a timing when the first guide 61 arrives at the normal position from the retracted position and pulls the spun yarn 10, to a position, where the yarn hooking member 43 is in contact with the spun yarn 10 at a timing when the first guide 61 arrives at the normal position and the second guide 62a arrives at the normal position from the retracted position.
- the spun yarn 10 can be pulled to the yarn pooling device 22 after the two guides are moved to the normal position (position when the winding is performed).
- a height of the first guide 61 in the device height direction when the first guide 61 is at the retracted position is between a height at which the transporting device (first transporting device 27) catches the end of the spun yarn 10 from the spinning device 9 and a height at which the yarn joining device 23 is arranged.
- the first guide 61 is moved from the retracted position to the normal position so that the spun yarn 10 can be reliably caught and pulled to the yarn pooling device 22.
- the trajectory of the first guide 61 when the first guide 61 is moved from the retracted position to the normal position and the trajectory of the transporting device when the transporting device transports the spun yarn 10 from the spinning device 9 to the yarn joining device 23 do not overlap with each other.
- Shapes of the first guide 61, the second guide 62a, and the third guide 62b are optional, and can be modified appropriately.
- the driving source of the first guide 61 and the second guide 62a and a mechanism for transmitting the driving force are also optional, and can be modified appropriately.
- the first guide 61 and the second guide 62a are driven by the same driving source.
- the first guide 61 and the second guide 62a can be driven by separate driving sources.
- each of the first guide 61 and the second guide 62a performed an arc motion (rotational motion); however, they can be configured to perform a sliding motion.
- a configuration can be adopted in which a work carrier that is movable between the spinning units 2 is arranged and the work carrier performs the yarn joining.
- the delivery roller 21 is arranged downstream of the spinning device 9; however, the delivery roller 21 can be omitted from the configuration. In this case, because the spun yarn 10 with inconsistent quality may be sent out when the operation of the spinning device 9 is resumed, it is preferable that a mechanism for suctioning and removing the yarn having the inconsistent quality be provided.
- a spinning machine includes a spinning device, a winding section, a yarn pooling device, a yarn joining device, a transporting device, and a movable guide.
- the spinning device forms a spun yarn by twisting a fiber bundle.
- the winding section forms a package by winding the spun yarn around a winding tube.
- the yarn pooling device pools the spun yarn between the spinning device and the winding section.
- the yarn joining device joins the spun yarn from the spinning device and the spun yarn from the winding section.
- the transporting device transports the spun yarns to the yarn joining device.
- the movable guide pulls the spun yarn to the yarn pooling device.
- a direction of a first yarn path which is a yarn path during the winding of the package by the winding section, is changed (bent) by the yarn pooling device.
- the yarn pooling device is arranged at a position located away from a second yarn path, which is a yarn path before the pulling of the spun yarn is performed by the movable guide, after the spun yarns are transported to the yarn joining device by the transporting device.
- the movable guide pulls the spun yarn on the second yarn path to the yarn pooling device.
- the spun yarn can be pulled to the yarn pooling device by the movable guide even in a spinning machine in which the direction of the yarn path is changed by the yarn pooling device during the winding of the spun yarn and the yarn path is separated from the yarn pooling device when performing the yarn joining, and hence the yarn joining can be performed automatically.
- the movable guide includes a first guide that is arranged further upstream of the yarn pooling device in a yarn traveling direction, and a second guide that is arranged further downstream of the yarn pooling device in the yarn traveling direction.
- a position of each of the first guide and the second guide is switchable between a normal position that is a position when the winding section winds the spun yarn and a retracted position that is a position retracted from the normal position.
- the spun yarn can be pulled to the yarn pooling device at upstream and downstream of the yarn pooling device by using the two guides. Therefore, the spun yarn can be reliably guided to the yarn pooling device even in a layout in which the yarn pooling device is separated from the yarn path.
- the spinning machine preferably further includes a driving section that drives the first guide from the retracted position to the normal position and then drives the second guide from the retracted position to the normal position.
- the spun yarn by driving the driving section, the spun yarn can be brought closer to the yarn pooling device by moving the first guide, and then the spun yarn can be guided to the yarn pooling device by moving the second guide.
- the yarn pooling device preferably includes a yarn pooling roller that winds the spun yarn therearound, and a yarn hooking member that winds the spun yarn around an outer circumferential surface of the yarn pooling roller by integrally rotating with the yarn pooling roller in a state in which the yarn hooking member is in contact with the spun yarn.
- the movable guide pulls the spun yarn to a position where the yarn hooking member does not come into contact with the spun yarn at a timing when the first guide arrives at the normal position from the retracted position, and pulls the spun yarn to a position where the yarn hooking member is in contact with the spun yarn at a timing when the first guide arrives at the normal position and the second guide arrives at the normal position from the retracted position.
- the spun yarn can be brought into contact with the yarn hooking member and wound around the yarn pooling device.
- a height of the first guide in a device height direction when the first guide is at the retracted position is preferably between a height at which the transporting device catches the spun yarn from the spinning device and a height at which the yarn joining device is arranged.
- the first guide moves from the retracted position to the normal position so that the spun yarn can be reliably pulled to the yarn pooling device.
- a trajectory of the first guide when the first guide moves from the retracted position to the normal position and a trajectory of the transporting device when the transporting device transports the spun yarn from the spinning device to the yarn joining device preferably do not overlap with (be different from) each other.
- the above spinning machine preferably further includes a regulating member that regulates the normal position of the first guide.
- the normal position of the first guide can be determined with accuracy, and hence the spun yarn can be appropriately guided by the first guide at the normal position.
- the second guide preferably includes a guide groove for guiding the spun yarn.
- the spinning machine preferably further includes a third guide that guides the spun yarn that is guided by the guide groove of the second guide when the second guide is at the normal position.
- a structural member for pulling the spun yarn to the yarn pooling device and a structural member (regulating guide) for guiding the spun yarn when being wound can be commonly arranged, and hence the number of structural components can be reduced.
- the above spinning machine preferably further includes a yarn guiding-out device that guides out the spun yarn (yarn end) from the package.
- the transporting device includes a first transporting device and a second transporting device.
- the first transporting device catches the spun yarn (yarn end) guided out by the yarn guiding-out device and transports the spun yarn to the yarn joining device.
- the second transporting device catches the spun yarn (yarn end) from the spinning device and transports the spun yarn to the yarn joining device.
- the end of the spun yarn can be reliably guided out by the yarn guiding-out device, and hence failure in guiding out the spun yarn by the first transporting device can be prevented. Therefore, the yarn joining can be performed more reliably.
- the above spinning machine preferably includes a plurality of spinning units.
- Each of the spinning units includes the spinning device, the winding section, the yarn pooling device, the movable guide, the yarn joining device, and the transporting device.
- the yarn joining device is arranged for each spinning unit, and hence it is not necessary to wait for an arrival of a yarn joining carrier, and as a result, the yarn joining can be promptly performed.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
Claims (9)
- Machine à filer comprenant:un dispositif de filage (9) adapté pour former un fil filé (10) par torsion d'un faisceau de fibres (8);un segment de bobinage (26) adapté pour former un paquet (50) par enroulement du fil filé (10) autour d'un tube d'enroulement (51); etun dispositif de regroupement de fil (22) adapté pour regrouper le fil filé (10) entre le dispositif de filage (9) et le segment de bobinage (26);dans lequel une direction d'un premier trajet de fil, qui est un trajet de fil pendant l'enroulement du paquet (50) par le segment de bobinage (26), est modifié par le dispositif de regroupement de fil (22) de sorte qu'une direction de déplacement de fil en amont du dispositif de regroupement de fil (22) soit différente de la direction de déplacement de fil en aval du dispositif de regroupement de fil (22), etdans lequel la direction du premier trajet du fil filé (10) est changé de 90 degrés ou plus par le dispositif de regroupement de fil (22),caractérisée par
un dispositif d'union de fil (23) adapté pour unir le fil filé (10) du dispositif de filage (9) et le fil filé (10) du segment de bobinage (26) lorsqu'il se produit une rupture de fil pendant le bobinage du paquet (50) ou lorsque le fil filé (10) est coupé;
un dispositif de transport (27, 28) adapté pour transporter le fil filé (10) du dispositif de filage (9) et le fil filé du segment de bobinage (26) vers le dispositif d'union de fil (23) lorsqu'il se produit une rupture de fil pendant le bobinage du paquet (50) ou lorsque le fil filé (10) est coupé; et
un guide mobile (60) adapté pour tirer le fil filé (10) du dispositif de filage (9) vers le dispositif de regroupement de fil (22) après que le dispositif de transport (27, 28) ait transporté les fils filés (10) vers le dispositif d'union de fil (23),
dans lequel le dispositif de regroupement de fil (22) est disposé en une position située éloignée d'un deuxième trajet de fil, qui est un trajet de fil avant que le tirage du fil filé (10) ne soit effectué par le guide mobile (60) après que les fils filés (10) soient transportés vers le dispositif d'union de fil (23) par le dispositif de transport (27, 28),
dans lequel le guide mobile (60) est adapté pour tirer le fil filé (10) sur le deuxième trajet du fil filé vers le dispositif de regroupement de fil (22),
dans lequel le guide mobile (60) comporte un premier guide (61) dont une position peut être commutée entre une position normale en amont du dispositif de regroupement de fil (22) dans une direction de déplacement de fil, qui est une position lorsque le segment de bobinage (26) enroule le fil filé (10), et une position rétractée en amont du dispositif de regroupement de fil (22) dans une direction de déplacement de fil, qui est une position rétractée par rapport à la position normale lorsqu'il se produit une rupture de fil pendant le bobinage du paquet (50) ou lorsque le fil filé (10) est coupé, le fil filé (10) étant amené à proximité du dispositif de regroupement de fil (22) avec déplacement du premier guide (61) de la position rétractée à la position normale,
dans lequel le guide mobile (60) comporte un deuxième guide (62a) dont une position peut être commutée entre une position normale, qui est une position en aval du dispositif de regroupement de fil (22) dans une direction de déplacement de fil, lorsque le segment de bobinage (26) enroule le fil filé (10), et une position rétractée en amont du dispositif de regroupement de fil (22) dans une direction de déplacement de fil, qui est une position rétractée par rapport à la position normale lorsqu'il se produit une rupture de fil pendant le bobinage du paquet (50) ou lorsque le fil filé (10) est coupé, et
dans lequel le fil filé (10) est amené à proximité du dispositif de regroupement de fil (22) pour venue en prise par le dispositif de regroupement de fil (22) avec déplacement du deuxième guide (62a) de la position rétractée à la position normale. - Machine à filer selon la revendication 1, comprenant par ailleurs un segment d'entraînement adapté pour entraîner le premier guide (61) et le deuxième guide (62a), dans laquelle
le segment d'entraînement est adapté pour entraîner le premier guide (61) de la position rétractée à la position normale et pour ensuite entraîner le deuxième guide (62a) de la position rétractée à la position normale. - Machine à filer selon la revendication 2, dans laquelle le dispositif de regroupement de fil (22) comporte
un rouleau de regroupement de fil (41) adapté pour y enrouler le fil filé (10), et
un élément d'accrochage de fil (43) adapté pour enrouler le fil filé (10) autour d'une surface circonférentielle extérieure du rouleau de regroupement de fil (41) en tournant de manière solidaire avec le rouleau de regroupement de fil (41) dans un état où l'élément d'accrochage de fil (43) est en contact avec le fil filé (10),
dans laquelle le guide mobile (60) est adapté pour tirer le fil filé (10) vers une position dans laquelle l'élément d'accrochage de fil (43) n'est pas en contact avec le fil filé (10) à un moment où le premier guide (61) arrive à la position normale à partir de la position rétractée, et
le guide mobile (60) est adapté pour tirer le fil filé (10) vers une position où l'élément d'accrochage de fil (43) est en contact avec le fil filé (10) à un moment où le premier guide (61) arrive à la position normale et le deuxième guide (62a) arrive à la position normale à partir de la position rétractée. - Machine à filer selon l'une quelconque des revendications 1 à 3, dans laquelle une hauteur du premier guide (61) dans une direction verticale lorsque le premier guide (61) se trouve dans la position rétractée est comprise entre une hauteur à laquelle le dispositif de transport (27) attrape le fil filé (10) du dispositif de filage (9) et une hauteur à laquelle est disposé le dispositif d'union de fil (23).
- Machine à filer selon l'une quelconque des revendications 1 à 3, dans laquelle une trajectoire du dispositif de transport lorsque le dispositif de transport (27) transporte le fil filé (10) du dispositif de filage (9) vers le dispositif d'union de fil (23) ne vient pas en interjection avec le premier guide (61) en position rétractée.
- Machine à filer selon l'une quelconque des revendications 1 à 5, comprenant par ailleurs un arrêtoir (70) adapté pour positionner le premier guide (61) dans la position normale.
- Machine à filer selon l'une quelconque des revendications 1 à 6, comprenant par ailleurs un troisième guide (62b), dans laquelle
le deuxième guide (62a) comporte une rainure de guidage adaptée pour guider le fil filé (10), et
le troisième guide (62b) est adapté pour guider le fil filé (10) qui est guidé par la rainure de guidage du deuxième guide (62a) lorsque le deuxième guide (62a) se trouve dans la position normale. - Machine à filer selon l'une quelconque des revendications 1 à 7, comprenant par ailleurs un dispositif de guidage de sortie de fil (54) adapté pour guider le fil filé (10) du paquet (50) lors de la réalisation de l'union de fil, dans laquelle
le dispositif de transport comprendun premier dispositif de transport (27) adapté pour attraper le fil filé (10) du dispositif de filage (9) et pour transporter le fil filé (10) vers le dispositif d'union de fil (23), etun deuxième dispositif de transport (28) adapté pour attraper le fil filé (10) guidé par le dispositif de guidage de sortie de fil (54) et pour transporter le fil filé (10) vers le dispositif d'union de fil (23). - Machine à filer selon l'une quelconque des revendications 1 à 8, comprenant une pluralité d'unités de filage (2), dans laquelle chacune des unités de filage (2) comprend ce qui suit:le dispositif de filage (9),le segment de bobinage (26),le dispositif de regroupement de fil (22),le guide mobile (60),le dispositif d'union de fil (23), etle dispositif de transport (27, 28).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012285723A JP2014125714A (ja) | 2012-12-27 | 2012-12-27 | 紡績機 |
Publications (2)
Publication Number | Publication Date |
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EP2749517A1 EP2749517A1 (fr) | 2014-07-02 |
EP2749517B1 true EP2749517B1 (fr) | 2016-10-05 |
Family
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Application Number | Title | Priority Date | Filing Date |
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EP13196501.4A Not-in-force EP2749517B1 (fr) | 2012-12-27 | 2013-12-10 | Fileuse |
Country Status (4)
Country | Link |
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EP (1) | EP2749517B1 (fr) |
JP (1) | JP2014125714A (fr) |
CN (1) | CN103898641B (fr) |
IN (1) | IN2013CH05408A (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104530415B (zh) * | 2014-10-01 | 2017-09-01 | 厦门赛诺邦格生物科技股份有限公司 | 一种异官能化y型聚乙二醇衍生物、制备方法及其生物相关物质 |
CZ306369B6 (cs) * | 2015-05-20 | 2016-12-21 | Rieter Cz S.R.O. | Rotorový dopřádací stroj a způsob obnovování předení na pracovním místě rotorového dopřádacího stroje |
JP2018002328A (ja) * | 2016-06-27 | 2018-01-11 | 村田機械株式会社 | 繊維機械 |
JP2019108629A (ja) * | 2017-12-19 | 2019-07-04 | 村田機械株式会社 | 紡績機及び糸捕捉方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CS564881A2 (en) * | 1980-08-02 | 1991-02-12 | Schlafhorst & Co W | Method of textile threads connecting and entwining device for realization of this method |
US4553709A (en) * | 1982-10-16 | 1985-11-19 | Schubert & Salzer | Yarn accumulator |
EP2423142B1 (fr) * | 2003-03-13 | 2013-05-01 | Murata Kikai Kabushiki Kaisha | Procédé de fonctionnement d'un enrouleur de fils |
ITMI20030846A1 (it) * | 2003-04-28 | 2004-10-29 | Savio Macchine Tessili Spa | Dispositivo per ridurre la pelosita' dei filati tessili |
JP2012031523A (ja) * | 2008-11-28 | 2012-02-16 | Murata Mach Ltd | 紡績機 |
JP2010174405A (ja) * | 2009-01-29 | 2010-08-12 | Murata Machinery Ltd | 糸端捕捉案内装置及びそれを備える紡績機 |
JP2010180007A (ja) * | 2009-02-04 | 2010-08-19 | Murata Machinery Ltd | 糸処理方法及び紡績機 |
-
2012
- 2012-12-27 JP JP2012285723A patent/JP2014125714A/ja active Pending
-
2013
- 2013-11-25 IN IN5408CH2013 patent/IN2013CH05408A/en unknown
- 2013-12-09 CN CN201310660171.2A patent/CN103898641B/zh not_active Expired - Fee Related
- 2013-12-10 EP EP13196501.4A patent/EP2749517B1/fr not_active Not-in-force
Also Published As
Publication number | Publication date |
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CN103898641A (zh) | 2014-07-02 |
IN2013CH05408A (fr) | 2015-04-24 |
CN103898641B (zh) | 2017-08-29 |
EP2749517A1 (fr) | 2014-07-02 |
JP2014125714A (ja) | 2014-07-07 |
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