JP2013067900A - Spinning machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spinning machine 1 capable of discharging fibers stored in a dust collector 30 without affecting yarn piecing work.SOLUTION: A spinning machine 1 comprises: a yarn feeding device for feeding a spun yarn 10; a loose yarn-tightening device 11; a winding device 12 for winding the spun yarn 10 fed from the yarn feeding device on a package 41; a yarn piecing device 20 for performing yarn piecing work for piecing a yarn end 10a on a yarn feeding device side and a yarn end 10b on a winding device side when a continuous state of the spun yarn 10 is broken; a first guiding device 18 for suctioning and capturing the yarn end 10a to guide the yarn end 10a to the yarn piecing device 20; a second guiding device 19 for suctioning and capturing the yarn end 10b to guide the yarn end 10b to the yarn piecing device 20; and a dust collector 30 for collecting fibers generated by the yarn piecing work. The dust collector 30 collects the fibers during a suctioning operation of the yarn end, and discharges the fibers during the stop of the suctioning operation.

Description

  The present invention relates to a spinning machine. In detail, it is related with accommodation of the fiber generated at the time of yarn splicing work.

  2. Description of the Related Art Conventionally, in a winder unit equipped with a splicer (yarn splicing device), a fiber that is blown by an air flow from an untwisting pipe and stored in a dust collector is known. In such a winder unit, the dust collector is configured to be connected to the suction duct manually or automatically to discharge the accommodated fibers. For example, it is like patent document 1.

  However, in a spinning machine in which a plurality of such winder units are connected to a single suction duct, when a yarn splicing operation is performed in one winder unit, fibers are discharged from the dust collector in another winder unit. When this occurs, the suction force required to suck the yarn end during the yarn splicing operation varies. For this reason, the suction of the yarn end becomes unstable, which may affect the yarn splicing operation.

JP 2009-190853 A

  The present invention has been made in view of the above-described problems, and provides a spinning machine that can discharge fibers stored in a dust collector without affecting the yarn splicing operation.

  Next, means for solving this problem will be described.

  That is, the spinning machine of the first invention includes a yarn feeding device, a winding device, a yarn joining device, a first guide device, a second guide device, and a dust collector. The yarn feeding device supplies spun yarn. The winding device winds the spun yarn supplied from the yarn feeding device into a package. The yarn joining device performs a yarn joining operation for joining the yarn end on the yarn feeding device side and the yarn end on the winding device side when the continuous state of the spun yarn is broken. The first guiding device captures the yarn end on the spinning device side by suction and guides it to the yarn joining device. The second guiding device captures the yarn end on the winding device side by suction and guides it to the yarn joining device. The dust collector accommodates the fibers during the suction operation of the yarn end by the first guide device and the second guide device. The dust collector discharges the fiber while the suction operation of the yarn end by the first guide device and the second guide device is stopped.

  The spinning machine of the second invention further includes a plurality of spinning units and a traveling carriage. Each of the spinning units includes the yarn feeding device and the winding device. The traveling carriage is provided so as to be able to travel along the plurality of spinning units, and performs the operation in a traveling stopped state with respect to the plurality of spinning units. The work carriage includes the yarn joining device, the first guide device, the second guide device, and the dust collector. The dust collector discharges the fibers while the work carriage is running.

  The spinning machine of the third invention further includes a suction duct, a first connection portion, and a second connection portion. The suction duct is disposed along a direction substantially parallel to the traveling direction of the work carriage. The suction duct is formed with a plurality of supply portions for supplying a suction air flow to at least the work carriage. The first connection unit connects the first guide device and the second guide device to the supply unit while the work carriage is stopped traveling. The second connection unit connects the dust collector to the supply unit while the work carriage is running.

  In the spinning machine of the fourth invention, the yarn splicing device includes a first untwisting nozzle and a second untwisting nozzle. The first untwisting nozzle blows off fibers at the yarn end on the yarn feeding device side by air. The second untwisting nozzle blows off the fiber at the yarn end on the winding device side by air. Air blowing directions of the first untwisting nozzle and the second untwisting nozzle are set toward the dust collector.

  In a spinning machine according to a fifth aspect of the present invention, the yarn feeding device includes an air spinning device for producing a spun yarn by spinning a fiber bundle with a swirling flow of air.

  As effects of the present invention, the following effects can be obtained.

  According to 1st invention, discharge | emission of the fiber from a dust collector and suction | inhalation of the yarn end by a 1st guide apparatus and a 2nd guide apparatus can be performed independently. Thereby, the fiber accommodated in the dust collector can be discharged without affecting the yarn splicing operation.

  According to the second invention, the fiber is not discharged from the dust collector during the splicing operation. Thereby, the fiber accommodated in the dust collector can be discharged without affecting the yarn splicing operation.

  According to the third invention, even when the dust collector, the first guide device, and the second guide device are connected to the same suction duct, the fibers are discharged from the dust collector during the yarn splicing operation. There is nothing. Thereby, the fiber accommodated in the dust collector can be discharged without affecting the yarn splicing operation.

  According to 4th invention, a fiber can be accommodated in a dust collector during the untwisting in a yarn splicing operation. Thereby, a fiber can be accommodated in a dust collector, without affecting a yarn splicing operation.

  According to the fifth aspect, the yarn splicing operation and the spinning operation are stably performed. Thereby, the working efficiency of the spinning machine can be improved.

1 is a front view showing a spinning machine according to an embodiment of the present invention. 1 is a schematic sectional view showing a side surface of a spinning machine according to an embodiment of the present invention. (A) Schematic of the yarn splicing cart that is a working cart according to an embodiment of the present invention. (B) AA arrow line view in Fig.3 (a). Schematic which shows the whole structure of the yarn splicing apparatus which concerns on one Embodiment of this invention. (A) The top view of the dust collector which concerns on one Embodiment of this invention. (B) The side view of the dust collector which concerns on one Embodiment of this invention. (A) Schematic showing the state by which the supply hole formed in the suction duct which concerns on one Embodiment of this invention is covered with the shutter valve. (B) Schematic showing the state which the 1st connection part passed the supply hole formed in the suction duct which concerns on one Embodiment of this invention. (C) Schematic showing the state by which the 1st connection part was connected to the supply hole formed in the suction duct which concerns on one Embodiment of this invention. (D) The schematic showing the state where the 1st connection part was separated from the supply hole formed in the suction duct which concerns on one Embodiment of this invention, and the 2nd connection part was connected. Schematic which shows the mode of the untwisting of the yarn joining apparatus which concerns on one Embodiment of this invention, and the mode of accommodation of the produced | generated fiber. Schematic which shows the aspect in which the fiber which the dust collector which concerns on one Embodiment of this invention temporarily accommodated is discharged | emitted.

  The overall configuration of the spinning machine 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. In the present specification, “upstream” and “downstream” mean upstream and downstream in the traveling direction of the yarn during spinning. In addition, the direction in which the spinning unit 2 is provided is defined as the left-right direction.

  As shown in FIGS. 1 and 2, the spinning machine 1 includes a large number of spinning units 2 arranged side by side in the left-right direction. The spinning machine 1 includes a plurality of spinning units 2, a yarn splicing cart 3 that is a working cart, a blower box 4, a prime mover box 5, and a housing 6.

  The configuration of the spinning unit 2 will be described below. The spinning unit 2 manufactures the spun yarn 10 and forms a package 41. Each spinning unit 2 includes a yarn feeding device, a yarn slack eliminating device 11 (yarn accumulating device), and a winding device 12. In the present embodiment, the yarn feeding device refers to the draft device 7 and the spinning device 9, but is not limited thereto. For example, the yarn feeder may include the yarn slack eliminating device 11. Each spinning unit 2 includes a draft device 7, a spinning device 9, a yarn slack eliminating device 11, and a winding device 12 as main components in order from upstream to downstream.

  A draft device 7 which is a part of the yarn feeding device draws a sliver into a fiber bundle 8. The draft device 7 is provided in the vicinity of the upper end of the casing 6 of the spinning machine 1. The fiber bundle 8 sent from the draft device 7 is spun by a spinning device 9 which is a part of the yarn feeding device.

  Although a detailed configuration of the spinning device 9 is not illustrated, in the present embodiment, a pneumatic type that generates a spun yarn 10 by twisting the fiber bundle 8 using a swirling airflow is adopted. More specifically (however, illustration is omitted), the spinning device 9 includes a spinning chamber, a fiber guide portion, a swirl flow generating nozzle, and a hollow guide shaft body. The fiber guide unit guides the fiber bundle 8 supplied from the upstream draft device 7 into the spinning chamber. The swirl flow generating nozzle is disposed around a path along which the fiber bundle 8 travels, and generates a swirl flow in the spinning chamber. By this swirl flow, the fiber ends of the fiber bundle 8 guided into the spinning chamber are reversed and swirled. The hollow guide shaft body guides the spun yarn 10 from the spinning chamber to the outside of the spinning device 9. The configuration of the spinning device 9 is not limited to this embodiment, and a pair of air jet nozzle type air spinning devices that twist in opposite directions may be used, and the spinning method is not particularly limited.

  A yarn slack eliminating device 11 is provided downstream of the spinning device 9. The yarn slack eliminating device 11 has a function of pulling the spun yarn 10 from the spinning device 9 by applying a predetermined tension to the spun yarn 10 and spinning sent from the spinning device 9 at the time of yarn splicing by the yarn splicing carriage 3 (described later). It has the function of retaining the yarn 10 and preventing the slack of the spun yarn 10 and the function of adjusting the tension so that the fluctuation of the tension on the winding device 12 side is not transmitted to the spinning device 9 side.

  The spun yarn 10 sent from the spinning device 9 is sent by the yarn slack eliminating device 11 and taken up by the winding device 12, whereby a package 41 is formed. In FIG. 1, the winding device 12 is illustrated to wind up the cheese-shaped package 41, but the winding device 12 may be configured to wind up the cone-shaped package.

  A yarn clearer 40 is provided on the front side of the casing 6 of the spinning machine 1 and at a position between the spinning device 9 and the yarn slack eliminating device 11. The yarn clearer 40 is configured to monitor the thickness of the traveling spun yarn 10 and transmit a yarn defect detection signal to a unit controller (not shown) when a yarn defect of the spun yarn 10 is detected. The yarn clearer 40 may also be configured to detect the presence or absence of foreign matter (another example of yarn defects) included in the spun yarn 10.

  The yarn splicing cart 3 that is a work cart performs the splicing operation of each spinning unit 2. The yarn joining cart 3 is provided so as to be able to travel in both the left and right directions (along the plurality of spinning units 2) within the travelable range. When yarn breakage or yarn breakage occurs in a spinning unit 2, the yarn splicing cart 3 travels to the spinning unit 2 and stops. The detailed configuration of the yarn joining cart 3 will be described later.

  The blower box 4 includes a blower inside. In FIG. 1, the blower box 4 is disposed at the right end of the spinning machine 1. However, the position where the blower box 4 is arranged is not particularly limited. A suction duct 13 is connected to the blower box 4. The suction duct 13 is configured to be connectable to the yarn joining cart 3. Fibers and the like generated during the yarn joining operation by the yarn joining cart 3 are sucked into the suction duct 13. The blower box 4 accommodates fibers and the like conveyed through the suction duct 13. The detailed configuration of the suction duct 13 will be described later.

  The prime mover box 5 includes a prime mover inside. In FIG. 1, the prime mover box 5 is disposed at the left end of the spinning machine 1. However, the position where the prime mover box 5 is arranged is not particularly limited. In the prime mover box 5, a motor that is a prime mover of the spinning machine 1, a reduction gear (not shown) for transmitting power to each part of the spinning machine 1, and the like are disposed inside.

  The housing 6 is a frame-shaped member in which the spinning unit 2 is arranged. The spinning machine 1 is configured by connecting a plurality of housings 6 in the left-right direction (arrangement direction of the spinning units 2). The casing 6 is configured by assembling steel materials. In the present embodiment, the housing 6 is configured such that a plurality of spinning units 2 can be arranged.

  A draft device 7, a spinning device 9, a yarn slack eliminating device 11 (yarn storage device) and the like of the spinning unit 2 are disposed above the front surface of the housing 6. A winding device 12 of the spinning unit 2 is disposed below the front surface of the housing 6. In the present embodiment, the spinning machine 1 includes a plurality of yarn joining carts 3 corresponding to the number of spinning units 2 provided in the housing 6. When the number of spinning units 2 is small, the number of yarn joining carts 3 provided in the spinning machine 1 may be one.

  A traveling space in which the yarn splicing cart 3 travels is formed in the center of the front surface of the housing 6 so as to be recessed rearward. Rails 14 for the yarn splicing cart 3 are arranged in the left-right direction (the direction in which the spinning units 2 are arranged and the travel direction of the yarn splicing cart 3) in the lower part of the traveling space.

  When the unit controller (not shown) receives the yarn defect detection signal, the spinning machine 1 configured as described above immediately cuts the spun yarn 10 with a cutter (not shown) and further stops the draft device 7, the spinning device 9, and the like. Further, the unit controller sends a control signal to the yarn splicing carriage 3 so as to travel to the front of the spinning unit 2. Thereafter, the unit controller drives the spinning device 9 and the like again, causes the yarn joining cart 3 to perform yarn joining, and resumes winding. Note that the spinning unit 10 may be cut off by interrupting the generation of the spun yarn 10 by stopping the supply of air to the spinning device 9 without providing the spinning unit 2 with a cutter.

  Next, the configuration of the yarn joining cart 3 will be specifically described with reference to FIGS. 1 to 5.

  As shown in FIGS. 1 to 3, the yarn joining cart 3 includes a first guide device 18, a second guide device 19, a yarn joining device 20, a dust collector 30, a first connection portion 31, and a second connection portion 32. It has. The yarn joining cart 3 is provided so as to run on a rail 14 provided in the casing 6 of the spinning machine 1. A suction duct 13 for supplying a suction air flow in a direction parallel to the rail 14 is provided.

  The first guide device 18 rotates upward from the standby position when the spun yarn 10 is broken or cut, and the spun yarn 10 (hereinafter simply referred to as “upper yarn”) spun from the spinning device 9. The yarn end 10a is captured by sucking air from the suction port. Then, the first guide device 18 rotates downward in a state where the upper yarn is sucked and held, and guides the upper yarn to the yarn joining device 20.

  The second guide device 19 rotates downward from the standby position when the spun yarn 10 is broken or cut, and the spun yarn 10 (hereinafter simply referred to as “lower yarn”) on the winding device 12 side. The end 10b is captured by sucking air from the suction port. The second guide device 19 rotates downward from the standby position when starting the yarn splicing operation, and captures the lower yarn by sucking air from the suction port. Then, the second guide device 19 guides the lower thread to the yarn joining device 20.

  The yarn joining device 20 joins the guided upper yarn end 10a and lower yarn end 10b together.

  As shown in FIG. 4, the yarn joining device 20 includes a first untwisting nozzle 21 that mainly untwists the upper yarn end 10a (see the dashed line in the figure) and a lower yarn end 10b (in the figure). A second untwisting nozzle 22 for untwisting, a yarn splicing nozzle 23 for intertwining and twisting both untwisted and loosened yarn ends 10a and 10b, and both yarn ends 10a and 10b, respectively. A pair of yarn shifting levers 24 arranged at predetermined positions, a first yarn end cutter 25 for cutting the yarn end 10a of the upper yarn, and a second yarn end cutter 26 for cutting the yarn end 10b of the lower yarn, And a pair of thread holding levers 27 that are fixed when the thread ends 10a and 10b are joined together. In addition, the arrow shown in the figure has shown the movable direction of each member which comprises the yarn splicing apparatus 20. FIG.

  The first untwisting nozzle 21 sucks the yarn end 10a of the upper yarn and performs untwisting. The first untwisting nozzle 21 includes a first untwisting pipe 21b in which the first suction port 21a is exposed, and the first untwisting pipe 21b injects an untwisting air flow therein. It communicates with the road 33. The untwisting airflow passage 33 is communicated with the first untwisted pipe 21b in the vicinity of the first suction port 21a so as to be inclined in the axial direction of the first untwisted pipe 21b. Thus, the first untwisting nozzle 21 sucks the yarn end 10a from the first suction port 21a by the untwisting air flow injected from the untwisting air flow passage 33 and is formed in the first untwisting pipe 21b. The fiber is untwisted by the swirling flow. The first untwisting nozzle 21 is arranged so that air flows toward a dust collector 30 described later, that is, the fibers generated at the time of untwisting are blown off by the air toward the dust collector 30.

  The second untwisting nozzle 22 sucks the lower yarn end 10b and performs untwisting. The second untwisting nozzle 22 includes a second untwisting pipe 22b in which the second suction port 22a is exposed, and the second untwisting pipe 22b injects an untwisting air flow therein. It communicates with the road 34. The untwisting airflow channel 34 is communicated with the second untwisted pipe 22b in the vicinity of the second suction port 22a so as to be inclined in the axial direction of the second untwisted pipe 22b. Thereby, the second untwisting nozzle 22 sucks the yarn end 10b from the second suction port 22a by the untwisting air flow injected from the untwisting air flow passage 34 and is formed in the second untwisting pipe 22b. The fiber is untwisted by the swirling flow. The 2nd untwisting nozzle 22 is arrange | positioned so that the air which flows toward the below-mentioned dust collector 30 may flow, ie, the fiber which generate | occur | produces at the time of untwisting may be blown off with air toward the dust collector 30. FIG.

  The yarn splicing nozzle 23 entangles the yarn end 10a of the upper yarn that has been untwisted and loosened with the yarn end 10b of the lower yarn that has been untwisted and loosened, and joins them together. The yarn joining nozzle 23 is formed with a storage portion 23a for storing the upper yarn end 10a and the lower yarn end 10b, and a guide inclined portion 23b for guiding both yarn ends 10a and 10b to the storage portion 23a. . The yarn joining nozzle 23 is communicated with a yarn joining air flow passage 35 for injecting a yarn joining air flow therein. As a result, the yarn joining nozzle 23 forms a swirl flow in the accommodating portion 23a by the yarn joining air flow injected from the yarn joining air flow passage 35, and the yarn ends 10a and 10b are untwisted and loosened. Tangle together.

  The yarn shifting lever 24 arranges the upper yarn end 10a and the lower yarn end 10b at respective predetermined positions. The yarn shifting lever 24 is disposed so as to sandwich the yarn joining nozzle 23, and is moved by a driving device (not shown). Before the untwisting operation, the yarn shifting lever 24 moves to move the tips of both yarn ends 10 a and 10 b to a predetermined position of the yarn joining nozzle 23. Further, after the untwisting operation, the yarn shifting lever 24 is further moved to an appropriate position, so that the untwisted portions of both yarn ends 10a and 10b are arranged at predetermined positions in the accommodating portion 23a.

  The first yarn end cutter 25 cuts the yarn end 10a to an appropriate length before untwisting the yarn end 10a of the upper yarn. The second yarn end cutter 26 cuts the yarn end 10b to an appropriate length before untwisting the lower yarn end 10b. The yarn end 10 a cut by the first yarn end cutter 25 is fixed by the first clamp plate 28, and the yarn end 10 b cut by the second yarn end cutter 26 is fixed by the second clamp plate 29. .

  The yarn holding lever 27 fixes the positions of the yarn ends 10a and 10b after the untwisted portions of the yarn ends 10a and 10b are arranged at predetermined positions in the accommodating portion 23a by the yarn shifting lever 24. The yarn holding lever 27 is moved along the both side surfaces of the yarn joining nozzle 23 by a driving device (not shown). The yarn presser lever 27 fixes the positions of both yarn ends 10 a and 10 b so as to be sandwiched between the yarn presser lever 27 and the yarn joining nozzle 23. Thereafter, as described above, a yarn joining air flow is injected into the yarn joining nozzle 23, and the yarn ends 10a and 10b are entangled and joined together. By configuring the yarn joining device 20 in this way, the yarn joining operation and the spinning operation are stably performed, and the spinning operation can be smoothly resumed. Thereby, the working efficiency of the spinning machine 1 can be improved.

  The dust collector 30 accommodates fibers generated in the yarn splicing operation. The dust collector 30 is fixed to the vicinity of the yarn joining device 20, specifically, to the main body of the yarn joining device 20 by an appropriate means such as a screw (see FIG. 2). As shown in FIG. 5, the dust collector 30 includes a dust collection chamber 30a, a fiber inlet 30b, and a lid portion 30c.

  The dust collection chamber 30a is formed in a substantially cylindrical shape inside a cylindrical casing, for example. In addition, a swirl flow can be generated inside the dust collection chamber 30a. Specifically, the dust collector 30 is provided with a fiber inlet 30b for introducing an air flow in a substantially tangential direction of the cylindrical dust collecting chamber 30a. A swirling flow can be generated inside the dust collecting chamber 30a by blowing an air flow toward the fiber inlet 30b. In addition, the first untwisting nozzle 21 and the second untwisting nozzle 22 guide airflow and fibers toward the fiber introduction port 30b. Although there is no restriction | limiting in particular about the raw material of the dust collection chamber 30a, If it comprises with transparent or translucent resin etc., the accumulation amount of the below-mentioned fiber etc. can be confirmed from the outside, and it is suitable.

  The lid part 30c is configured to cover an open part formed in the upper part of the dust collection chamber 30a. For example, the lid 30c is attached to the upper portion of the dust collection chamber 30a via a screwing portion (not shown), and is configured to be removable from the dust collection chamber 30a by rotating the screwing portion. An air vent 30d opened in a substantially circular shape (including a circular shape) is formed at the center of the lid portion 30c. An air vent filter 30e is disposed in the air vent 30d. The air vent filter 30e is composed of, for example, a wire mesh filter that does not generate much air resistance and is rough enough to capture fibers. Thereby, the air and the fiber introduced from the fiber introduction port 30b are separated by the air vent filter 30e, and the fibers are accumulated in the dust collecting chamber 30a.

  A fiber discharge opening 30f that is opened in a circular shape (substantially circular shape) is formed at the center of the lower part of the dust collection chamber 30a. The fibers accumulated in the dust collection chamber 30a can be discharged to the outside from the fiber discharge opening 30f.

  As shown in FIG. 3, the first connection portion 31 supplies a suction air flow to the first guide device 18 and the second guide device 19. Further, the second connection portion 32 supplies a suction air flow to the dust collector 30. The first connection part 31 and the second connection part 32 are formed in a pipe shape. The suction air flow inlets of the first connection part 31 and the second connection part 32 are arranged in the yarn joining cart 3 so as to face the suction duct 13. The first connecting portion 31 and the second connecting portion 32 are urged toward the suction duct 13 by a biasing member such as a spring, and the tip (suction air flow inlet) is applied to the suction duct 13 described later with a predetermined force. It is provided to touch. That is, the first connection portion 31 and the second connection portion 32 are configured to move on the suction duct 13 (a supply portion forming surface 13a described later) as the yarn joining cart 3 travels.

  The 1st connection part 31 is connected to the 1st guide apparatus 18 and the 2nd guide apparatus 19 via the connection pipe 31a. Moreover, the 2nd connection part 32 is connected to the dust collector 30 via the connection pipe 32a. By being configured in this way, the first connection portion 31 supplies a suction air flow to the first guide device 18 and the second guide device 19 from a supply portion 15 described later formed in the suction duct 13. Similarly, the second connection part 32 supplies a suction air flow from the supply part 15 to the dust collector 30.

  Next, the configuration of the suction duct 13 will be specifically described with reference to FIG.

  As shown in FIG. 3, the suction duct 13 supplies a suction air flow to each part of the spinning machine 1. The suction duct 13 is arranged in a direction parallel to the rail 14. A suction air flow is applied to the suction duct 13 on a flat surface (hereinafter simply referred to as a supply portion forming surface 13a) facing the yarn splicing cart 3 and facing the first connection portion 31 and the second connection portion 32. A plurality of supply parts 15 for supply are formed at predetermined intervals. A shutter valve 16 is provided for each supply section 15 on the supply section forming surface 13 a of the suction duct 13.

  The 1st connection part 31 or the 2nd connection part 32 is connected to the supply part 15 of the supply part formation surface 13a. The plurality of supply sections 15 are configured so that the first connection section 31 of the yarn splicing cart 3 is connected when the yarn splicing cart 3 is in a position for performing the splicing operation in each spinning unit 2. Formed respectively.

  The shutter valve 16 is provided so as to be able to block the supply unit 15. The shutter valve 16 is made of a material having a certain degree of elasticity (for example, plastic such as polyamide resin), and is formed as a substantially flat member. The shutter valve 16 has four lid portions (first lid portion 16a, second lid portion 16b, third lid portion 16c, and fourth lid portion 16d) that extend radially from the central portion. A flat hole closing surface (not shown) is formed on one surface side of each lid portion.

  The shutter valve 16 is attached in the vicinity of each supply part 15 on the supply part forming surface 13 a of the suction duct 13. The shutter valve 16 is configured to be rotatable about a center portion as a rotation center, and is configured to block the supply portion 15 with a lid portion. That is, the shutter valve 16 is configured such that the lid that closes the supply unit 15 is switched each time the shutter valve 16 rotates 90 degrees.

  Next, the operation mode of the shutter valve 16 by the first connection portion 31 will be described with reference to FIGS. 3 and 6. In addition, since all the lid parts of the supply part 15 are the same shapes in the following description, description about another lid part is abbreviate | omitted. Further, since the configuration of the second connection portion 32 is the same as that of the first connection portion 31, the description about the second connection portion 32 will be mainly given.

  As shown in FIG. 6A, when the first connection portion 31 is not connected to one supply portion 15, the supply portion 15 is blocked by the first lid portion 16 a of the shutter valve 16. Thereby, it can prevent that external air flows in into the suction duct 13 from the said supply part 15, and suction force falls.

  As shown in FIG. 6B, when the yarn splicing carriage 3 moves on the supply portion forming surface 13 a of the suction duct 13 in the direction of the arrow, the edge of the first lid portion 16 a is pushed by the tip of the first connection portion 31. The shutter valve 16 rotates counterclockwise. In this way, the yarn splicing cart 3 travels to the target spinning unit 2 while rotating the shutter valves 16 arranged side by side by the first connecting portion 31 one after another.

  The shutter valve 16 rotates 90 degrees when the first connecting portion 31 passes the position of the supplying portion 15 and the first connecting portion 31 pushes the first lid portion 16a. Therefore, when the first connection part 31 passes completely through the position of the supply part 15, the shutter valve 16 rotates and the second cover part 16 b can block the supply part 15 again. Thereby, the outside air flowing into the suction duct 13 can be minimized.

  As shown in FIG. 6 (c), when the yarn splicing carriage 3 arrives at the target spinning unit 2, the shutter valve 16 stops in a state where the corresponding supply section 15 is completely opened, and the supply section 15 One connection 31 is connected. Thereby, the 1st guide apparatus 18 and the 2nd guide apparatus 19 which are shown in FIG. 3 can receive supply of a suction air flow. Since the shutter valve 16 is formed in a rotationally symmetric shape as described above, the first connection portion 31 may approach from the opposite side of the shutter valve 16 (in this case, the shutter valve 16 rotates clockwise). ).

  When the 1st connection part 31 and the said supply part 15 are connected, the 2nd connection part 32 and the other supply part 15 are not connected. Thereby, it can prevent that external air flows in into the suction duct 13 from the other supply part 15, and the suction force of the 1st guide apparatus 18 and the 2nd guide apparatus 19 falls. Therefore, the first guide device 18 and the second guide device 19 can reliably capture the upper yarn and the lower yarn by the suction flow and guide them to the yarn joining device 20.

  Similarly, as shown in FIG. 6D, when the second connection portion 32 and one supply portion 15 are connected, the first connection portion 31 and the other supply portion 15 are not connected. Thereby, it can prevent that the attraction | suction force at the time of discharging | emitting a fiber from the dust collector 30 by outside air flowing in into the suction duct 13 from the other supply part 15 falls. Therefore, as shown in FIG. 3, even if the dust collector 30, the first guide device 18 and the second guide device 19 are connected to the same suction duct 13, the yarn splicing operation is affected. It is possible to discharge the fibers stored in the dust collector 30 (see FIG. 8).

  Further, the yarn splicing cart 3 discharges the fibers accommodated in the dust collector 30 during the yarn splicing operation, in other words, while the yarn splicing cart 3 is running. The special movement can be omitted, and work efficiency is good. However, in order to discharge the fiber accommodated in the dust collector 30, the yarn splicing cart 3 may travel and stop so that the second connection portion 32 is connected to the supply portion 15.

  In addition, the structure of the supply part 15 is not limited to this embodiment, The supply part 15 to which only the 1st connection part 31 is connected and the supply part 15 to which only the 2nd connection part 32 is connected are included. Each may be formed in the suction duct 13. In this case, for example, the supply unit 15 in which only the second connection unit 32 is connected between the adjacent spinning units 2 is formed. However, the supply part 15 to which only the second connection part 32 is connected may be provided at any position of the suction duct 13 as long as the first connection part 31 and the second connection part 32 are not connected at the same time. Further, a suction duct for supplying a suction air flow to the first connection portion 31 and a suction duct for supplying a suction air flow to the second connection portion 32 may be individually provided in the spinning machine 1.

  Next, with reference to FIG. 2 to FIG. 4 and FIG. 6 to FIG.

  First, the accommodation of the fiber during the yarn splicing operation will be described. As shown in FIGS. 2, 3, and 6 (c), when the yarn splicing carriage 3 reaches a position where the yarn splicing work is performed, the first connecting portion 31 rotates the shutter valve 16 of one supply portion 15. Connected to the supply unit 15. As a result, the suction air flow is supplied from the suction duct 13 to the first guide device 18 and the second guide device 19 via the first connection portion 31. At this time, since the second connection portion 32 is not connected to the supply portion 15, the suction air flow is not supplied from the suction duct 13 to the dust collector 30.

  As shown in FIGS. 3 and 4, the first guide device 18 guides the yarn end 10 a spun from the spinning device 9 side to the yarn joining device 20 while sucking it. The second guiding device 19 guides the yarn joining device 20 while sucking the yarn end 10b on the winding device 12 side.

  The upper yarn and the lower yarn guided to the yarn joining device 20 are brought together by the yarn gathering lever 24 and inserted into the accommodating portion 23a of the yarn joining nozzle 23. At this time, the upper thread is clamped to the first clamp plate 28, the lower thread is clamped to the second clamp plate 29, the lower thread is introduced to the first thread end cutter 25, and the upper thread is introduced to the second thread end cutter 26. Is done.

  The upper yarn and the lower yarn are cut into predetermined lengths by the first yarn end cutter 25 and the second yarn end cutter 26, respectively, to form an upper yarn end 10a and a lower yarn end 10b. The remaining portion of the spun yarn 10 is sucked by the first guide device 18 and the second guide device 19 and discharged to the suction duct 13 through the first connection portion 31.

  As shown in FIG. 7, substantially simultaneously with the yarn cutting, compressed air is jetted from the yarn joining air flow passage 35 toward the inside of the first untwisted pipe 21b and the second untwisted pipe 22b. Both yarn ends 10a and 10b formed by yarn cutting are sucked into the first untwisted pipe 21b and the second untwisted pipe 22b. The upper yarn and the lower yarn are untwisted by untwisting the fiber at the yarn end by the swirling flow inside the first untwisted pipe 21b and the second untwisted pipe 22b. At this time, fine fibers are generated, but the fibers are blown away by the air flow.

  The fibers blown into the air flow are introduced from the first untwisted pipe 21b and the second untwisted pipe 22b into the dust collecting chamber 30a through the fiber inlet 30b of the dust collector 30. At this time, since the air flow from the first untwisted pipe 21b and the second untwisted pipe 22b is introduced into the cylindrical dust collecting chamber 30a from a substantially tangential direction, a swirling flow is generated inside the dust collecting chamber 30a. To do. As a result, according to the principle of the cyclone (powder separator), the fibers are blown to the outer peripheral side of the inner wall of the dust collecting chamber 30a by centrifugal force and are deposited under the dust collecting chamber 30a by gravity. By comprising in this way, a fiber can be accommodated in the dust collector 30 during the untwisting in a yarn splicing operation. The clean air flow from which the fibers are separated is discharged to the outside of the dust collection chamber 30a through the air vent filter 30e. Since the fibers accumulated by centrifugal force become a lump, they can be easily discharged by the second connection portion 32.

  As described above, the spinning machine 1 discharges the generated fiber when the yarn splicing carriage 3 is in a position where the yarn splicing work is performed, that is, when the first guide device 18 and the second guide device 19 perform suction. It is temporarily accommodated by the dust collector 30 without. That is, the discharge of the fiber from the dust collector 30 and the suction of the yarn end by the first guide device 18 and the second guide device 19 can be performed separately (not simultaneously). Thereby, the fibers accommodated in the dust collector 30 can be discharged without affecting the yarn splicing operation.

  When the untwisting of the yarn end 10a and the yarn end 10b is completed, the yarn end 10a and the yarn end 10b are connected to the first untwisting pipe 21b and the second untwisting by the yarn shifting operation of the yarn shifting lever 24 and the yarn pressing operation of the yarn holding lever 27. The yarns are pulled out from the untwisting pipes 22b and set in a state of being overlapped with each other in the yarn joining air flow passage 35 of the yarn joining nozzle 23. In this state, the compressed air is ejected from the ejection hole into the yarn joining air flow passage 35 to generate a swirling flow of the compressed air, the fibers of the upper yarn and the lower yarn are entangled and twisted to perform the yarn joining. . When the piecing is completed, the operations of the levers 96 and 98 are released, and the clamp of the spun yarn 10 by the first clamp plate 28 and the second clamp plate 29 is released.

  Next, the discharge of the fiber accommodated in the dust collector 30 will be described. When a request for the yarn splicing operation occurs, the yarn splicing cart 3 starts traveling toward the spinning unit 2 that has made the request.

  As shown in FIGS. 6C and 6D, the first connection portion 31 connected to the supply portion 15 is separated from the supply portion 15 with the movement of the yarn joining cart 3, while the supply portion 15 is separated. The shutter valve 16 of the unit 15 is rotated. Thereby, the supply unit 15 is closed by the shutter valve 16. That is, the suction air flow is not supplied from the suction duct 13 to the first guide device 18 and the second guide device 19 via the first connection portion 31.

  By further moving the yarn joining cart 3, the second connecting portion 32 is connected to the supply portion 15 while rotating the shutter valve 16 of one of the supply portions 15 among the plurality of supply portions 15. As a result, a suction air flow is supplied from the suction duct 13 to the dust collector 30 via the second connection portion 32. As shown in FIG. 8, the fiber accommodated in the dust collector 30 is discharged from the fiber discharge opening 30f to the suction duct 13 by this suction air flow.

  From the above, when the spinning machine 1 is in a position where the yarn joining cart 3 does not perform the yarn joining operation, specifically, when the second connecting portion 32 is connected to the supply portion 15, The fibers are discharged, and the first guide device 18 and the second guide device 19 do not perform suction. That is, the discharge of the fiber from the dust collector 30 and the suction of the yarn end by the first guide device 18 and the second guide device 19 are performed independently (not simultaneously). Thereby, the fibers accommodated in the dust collector 30 can be discharged without affecting the yarn splicing operation. Further, since the fibers are accommodated by the dust collector 30, it is possible to prevent the fibers from scattering in the yarn joining cart 3 and affecting the operation of the yarn joining cart 3 or causing the yarn joining cart 3 to malfunction. it can. The frequency of the cleaning operation of the yarn joining cart 3 can also be reduced.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said Example, A various change is possible. For example, the spinning unit 2 is configured to pull out the spun yarn 10 from the spinning device 9 by the yarn slack eliminating device 11, but is not limited to this configuration. A delivery roller and a nip roller may be provided between the spinning device 9 and the yarn slack eliminating device 11, and the spun yarn 10 may be pulled out from the spinning device 9 by these rollers.

  The yarn splicing device 20 is not limited to the above-described embodiment as long as the yarn end is blown off by an air flow during the yarn splicing operation. Further, the configuration of the dust collector 30 is not limited to the above shape as long as it is a configuration capable of temporarily storing fibers.

DESCRIPTION OF SYMBOLS 1 Spinning machine 2 Spinning unit 9 Spinning device 10 Spinning yarn 12 Winding device 18 First guide device 19 Second guide device 20 Yarn splicing device 30 Dust collector 41 Package

Claims (5)

A yarn feeder for supplying spun yarn;
A winding device for winding the spun yarn supplied from the yarn feeding device into a package;
A yarn splicing device that performs a splicing operation to join the yarn end on the yarn feeding device side and the yarn end on the winding device side when the continuous state of the spun yarn is divided;
A first guide device that captures and guides the yarn end on the yarn feeding device side to the yarn joining device;
A second guide device that captures the yarn end on the winding device side by suction and guides it to the yarn joining device;
A spinning machine comprising a dust collector for storing fibers generated by the yarn splicing operation,
The dust collector accommodates the fibers during the suction operation of the yarn end by the first guide device and the second guide device, and performs the suction operation of the yarn end by the first guide device and the second guide device. A spinning machine that discharges the fiber while it is stopped. A plurality of spinning units each including the yarn feeding device and the winding device;
A work carriage that is provided so as to be able to travel along the plurality of spinning units, and that performs work in a stopped state with respect to the plurality of spinning units;
The working carriage includes the yarn splicing device, the first guide device, the second guide device, and the dust collector.
The spinning machine according to claim 1, wherein the dust collector discharges the fibers while the work carriage is running. A suction duct that is arranged along a direction substantially parallel to the traveling direction of the work carriage, and at least a plurality of supply portions for supplying a suction air flow to the work carriage;
A first connection unit that connects the first guide device and the second guide device to the supply unit while the working carriage is stopped running;
The spinning machine according to claim 2, further comprising: a second connection unit that connects the dust collector to the supply unit during traveling of the work carriage. The yarn joining device is
A first untwisting nozzle that blows off fibers at the yarn end on the yarn feeder side by air;
A second untwisting nozzle that blows off the fiber at the yarn end on the winding device side with air,
The spinning machine according to any one of claims 1 to 3, wherein air blowing directions of the first untwisting nozzle and the second untwisting nozzle are set toward the dust collector. The yarn feeding device includes:
The spinning machine according to any one of claims 1 to 4, further comprising an air spinning device that produces a spun yarn by spinning a fiber bundle with a swirling flow of air.

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