JP2019006534A - Textile machine - Google Patents

Abstract

To provide a textile machine capable of discharging fiber waste to an outside even when an air flow generation part is operated.SOLUTION: A textile machine includes a spinning unit, a fiber waste separation part 64 for separating fiber waste D from air, a blower part 65 for generating a swirling flow in an inner space 74 of the fiber waste separation part 64, a fiber waste recovery part 66, and a shutter 91. The fiber waste separation part 64 includes a peripheral wall 71 having an inner peripheral surface 73, an inflow port 75, an exhaust port formed above the inflow port 75, and a fiber waste discharge port 77 formed below the inflow port 75. An inner diameter of a cross section of a peripheral wall 71 orthogonal to a vertical direction is larger as it extends from the inflow port 75 to the fiber waste discharge port 77. The fiber waste recovery part 66 can switch an opening/closing state between a tightly closed state and an opened state; an inner space 83 of the fiber waste recovery part 66 is constituted so as to be communicable with the inner space 74 of the fiber waste separation part 64 via the fiber waste discharge port 77; and the shutter 91 is movable between a communication position and a shutoff position.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a textile machine including a fiber waste separation unit that separates fiber waste from air.

  In Patent Document 1, as an example of a textile machine including a yarn processing unit that processes yarn, an automatic winder including a plurality of winding units and a collection system that collects yarn waste, dust, and the like generated in the winding unit. Is disclosed. The recovery system includes a cyclone type separation device, an aspirator (hereinafter referred to as an airflow generation unit) that is connected to the separation device and generates a swirling flow inside the separation device by sucking air. The separation device has two cyclone devices connected in series. In the first cyclone device, yarn waste is separated from air and dust. In the second cyclone device, dust is separated.

  More specifically, the first cyclone device includes a container in which a swirl flow is generated, an inlet port through which air flows into the container, an exhaust port through which air is discharged from the container, and a bottom portion of the container. And an opening through which the lint is discharged. The opening is normally closed by a valve. When a swirl flow is generated in the internal space of the container by the operation of the air flow generation unit, air and dust are discharged from the exhaust port, and the yarn waste separated from these accumulates near the bottom of the container. By periodically opening the valve, the yarn waste can be discharged to the outside through the opening.

EP26553423A1

  During the operation of the airflow generation unit, air is sucked from the inflow port toward the exhaust port. For this reason, in the first cyclone device, if the valve is opened during the operation of the air flow generation unit, the external air is sucked into the container through the opening, and the accumulated lint is blown up to the second cyclone. There is a risk of flowing into the device. Therefore, when discharging the yarn waste from the container, it is necessary to stop the operation of the airflow generation unit. For this reason, for example, in the case where it is desired to discharge the accumulated yarn waste at an arbitrary timing while always separating the yarn waste by operating the air flow generation unit, the above-described collection system cannot do so.

  An object of the present invention is to enable discharge of fiber waste to the outside even when the airflow generation unit is operating.

  A textile machine according to a first aspect of the present invention is connected to a yarn processing unit that processes yarn, a fiber waste separation unit that separates fiber waste generated by yarn processing of the yarn processing unit from air, and the fiber waste separation unit. An airflow generating unit that generates a swirling flow that swirls around a predetermined axial direction in an internal space of the fiber waste separating unit, and a fiber waste collecting unit that recovers the fiber waste separated by the fiber waste separating unit. In the textile machine, the fiber waste separating part is formed in a peripheral wall having an inner peripheral surface, an intermediate part of the peripheral wall in the axial direction, into which air containing fiber waste flows, and the inlet An exhaust port that is formed on the one side in the axial direction to discharge air, and a fiber waste discharge port that is formed on the other side in the axial direction than the inflow port and from which fiber waste is discharged. Having a cross section perpendicular to the axial direction of the peripheral wall Is larger in the axial direction from the inflow port toward the fiber waste outlet, and the fiber waste recovery part is in a sealed state sealed to the outside and an open state opened to the outside. The internal space of the fiber waste collecting part is configured to be able to communicate with the internal space of the fiber waste separating part via the fiber waste discharge port, and the fiber waste separating part Movable between a communication position for communicating the internal space of the part and the internal space of the fiber waste collecting part, and a blocking position for blocking the internal space of the fiber waste separating part and the internal space of the fiber waste collecting part, A shutter is provided.

  In the internal space of the fiber waste separating unit, a swirling flow is generated by the operation of the airflow generating unit. When air containing fiber waste flows into the fiber waste separation part via the inflow port, the fiber waste moves so as to spiral along the peripheral wall by the swirling flow, and centrifugal force acts on the fiber waste. . In the present invention, the inner diameter of the peripheral wall increases in the axial direction from the inlet to the fiber waste outlet. Thereby, the centrifugal force which acts on the fiber waste which flowed in from the inflow port is decomposed | disassembled into a component perpendicular | vertical to the internal peripheral surface of a surrounding wall, and a parallel component. Since this parallel component faces the other side in the axial direction, that is, the fiber waste outlet side, the fiber waste is guided along the inner peripheral surface to the side having a larger inner diameter, that is, the fiber waste outlet side. The Accordingly, it is possible to prevent the fiber waste flowing in from the inlet from being sucked to the exhaust port side, and to reliably move the fiber waste to the fiber waste discharge port side.

  Moreover, in this invention, a fiber waste collection | recovery part can change a state between a sealing state and an open state. Furthermore, the internal space of the fiber waste collecting unit and the internal space of the fiber waste separating unit are configured to communicate with each other, and the shutter is between a communication position that connects the two internal spaces and a blocking position that blocks the two internal spaces. It is possible to move with. When the fiber waste collecting unit is in a sealed state and the shutter is in the communication position, the fiber waste is collected by the fiber waste collecting unit. On the other hand, when the shutter is in the blocking position, even if the fiber waste collecting unit is opened during the operation of the airflow generating unit, it is possible to prevent air from flowing into the fiber waste separating unit from the outside and flowing back the fiber waste. The fiber waste collecting part can be opened and the recovered fiber waste can be discharged to the outside. Therefore, even when the airflow generation unit is operating, it is possible to discharge the fiber waste to the outside. As described above, the fiber waste can be reliably recovered in the fiber waste recovery unit, and the fiber waste accumulated in the fiber waste recovery unit can be discharged to the outside at an arbitrary timing.

In the textile machine of the second invention, in the first invention, the axial direction is a vertical direction,
The fiber waste outlet is disposed below the inflow port.

  In the present invention, since gravity acts on the side from the inlet to the fiber waste outlet in the vertical direction, the fiber waste can be moved to the fiber waste outlet side more reliably.

  In the textile machine according to a third aspect, in the first or second aspect, the inner diameter of the peripheral wall increases as the entire inner peripheral surface of the peripheral wall moves from the one side to the other side in the axial direction. It is the taper surface which becomes.

  In the present invention, since the entire inner peripheral surface of the peripheral wall is a tapered surface, the fiber waste is along the inner peripheral surface on the side where the inner diameter increases, that is, over the entire inner peripheral surface of the peripheral wall in the axial direction, Guided to the fiber waste outlet side. Therefore, it is possible to reliably prevent the fiber waste flowing in from the inflow port from being sucked to the exhaust port side, and to move the fiber waste more reliably and smoothly to the fiber waste discharge port side.

  A textile machine according to a fourth invention is the textile machine according to any one of the first to third inventions, wherein the fiber waste outlet is formed over the entire region of the other end face in the axial direction of the fiber waste separator. It is characterized by being.

  In the present invention, since the fiber waste outlet is formed over the entire area of the other end face in the axial direction of the fiber waste separator, the discharged fiber waste is less likely to be caught by the fiber waste outlet. Moreover, the area of the fiber waste outlet can be increased. Therefore, the fiber waste can be reliably discharged from the fiber waste discharge port.

  According to a fifth aspect of the present invention, there is provided the textile machine according to the fourth aspect, wherein the shutter is configured to be capable of opening and closing the fiber waste outlet and at least movable in the axial direction. is there.

  In the configuration in which the fiber waste outlet is formed over the entire area of the other end face in the axial direction of the fiber waste separator, the area of the fiber waste outlet can be increased. For this reason, for example, when it is configured to open and close the fiber waste outlet by moving the shutter parallel to the surface on which the fiber waste outlet is formed, the fiber waste outlet is completely opened or closed. The shutter travel distance required for this becomes longer, and it may take time to open and close the fiber waste outlet. In the present invention, since the shutter can open and close the fiber waste outlet and can move at least in the axial direction, it is possible to shorten the moving distance of the shutter necessary to completely open or close the fiber waste outlet. it can. Therefore, the time taken to open and close the fiber waste outlet can be shortened.

  A textile machine according to a sixth aspect of the present invention is characterized in that, in any one of the first to third aspects, the fiber waste outlet is formed in the peripheral wall.

  In the present invention, the fiber waste outlet is formed in the peripheral wall. Therefore, compared with the case where the fiber waste outlet is formed over the entire area of the other end face in the axial direction of the fiber waste separator, the fiber waste outlet can be made smaller. Thereby, the size of the shutter can be reduced by configuring the shutter to open and close the fiber waste outlet.

  The textile machine according to a seventh aspect is the textile machine according to the sixth aspect, wherein the fiber waste separating portion is a fiber on the inner peripheral surface of the peripheral wall from the fiber waste outlet in a cross section orthogonal to the axial direction. It has the pipe part extended in the tangential direction in the formation position of a waste discharge port, It is characterized by the above-mentioned.

  In this invention, the pipe part is extended in the tangential direction in the formation position of the fiber waste discharge port of an internal peripheral surface. Thereby, the fiber waste separated from the air flows out from the fiber waste separation part through the fiber waste discharge port, and then smoothly flows to the fiber waste recovery part side along the pipe part. Therefore, the fiber waste can be discharged smoothly.

  The textile machine according to an eighth aspect of the present invention is the textile machine according to the sixth or seventh aspect, wherein the axial direction is a vertical direction, and the fiber waste separating portion is configured such that the other side of the axial direction is a lower side. The fiber waste outlet has a bottom that closes the lower end of the peripheral wall, and the fiber waste outlet is formed at the lower end of the peripheral wall.

  If the fiber waste outlet is formed in the middle of the peripheral wall in the axial direction, if the fiber waste fails to be discharged from the fiber waste outlet, the fiber waste falls due to gravity and accumulates near the bottom in the fiber waste separator. There is a fear. In the present invention, since the fiber waste outlet is formed at the lower end of the peripheral wall, even if the fiber waste fails to be discharged from the fiber waste outlet, the fiber waste turns and moves again to the vicinity of the fiber waste outlet. To do. Therefore, it can suppress that fiber waste accumulates near the bottom.

  A textile machine according to a ninth invention is the textile machine according to any one of the first to eighth inventions, wherein one end of the textile machine is connected to the yarn processing unit, and the other end is connected to the fiber waste separating part via the inflow port. A connected first duct, and a second duct whose one end is connected to the fiber waste separating part via the fiber waste outlet, and whose other end is connected to a middle part of the first duct. An opening is formed in the middle part of the second duct, and the internal space of the fiber waste collecting part is configured to be able to collect fiber waste by communicating with the second duct through the opening. The shutter is between a communication position where the internal space of the fiber waste collecting part and the second duct communicate with each other, and a blocking position where the internal space of the fiber waste collecting part and the second duct are blocked. It is characterized by being movable.

  When discharging the fiber waste collected by the fiber waste collection unit to the outside, it is necessary to position the shutter at the blocking position in order to prevent the fiber waste from flowing back to the fiber waste separation unit. Here, while operating the airflow generation unit while the shutter is located at the blocking position, the fiber waste separated by the fiber waste separation unit is not collected by the fiber waste collection unit, but stays in the fiber waste separation unit. sell. Then, depending on the position and size of the fiber waste outlet, the fiber waste may accumulate near the fiber waste outlet and clog the fiber waste outlet.

  In this invention, the 2nd duct connected with the fiber waste separation part via the fiber waste discharge port is connected to the middle part of the 1st duct connected with the fiber waste separation part via the inflow port. Thus, a reflux path is formed in which the fiber waste that has exited from the fiber waste separator through the fiber waste outlet passes through the second duct and the first duct and returns to the fiber waste separator again through the inlet. . In addition, since the shutter communicates or blocks the internal space of the fiber waste collecting portion and the second duct, the state where the reflux path is formed can be maintained even when the shutter is in the blocking position. Thereby, when the shutter is in the communication position, the fiber waste is collected through the opening, and when the shutter is in the blocking position, the fiber waste circulates through the reflux path, so that the fiber waste stays in the fiber waste separation part. It becomes difficult. Therefore, it is possible to prevent the fiber waste outlet from being clogged.

  A textile machine according to a tenth aspect of the present invention is the textile machine according to any one of the first to ninth aspects, wherein the shutter moves the shutter between the communication position and the blocking position, and the shutter control controls the driving section. The shutter control unit, when the shutter is located at the blocking position and the fiber waste collecting unit is in the open state, the shutter position is communicated from the blocking position of the shutter. It is characterized by prohibiting movement to.

  In the present invention, when the shutter is located at the blocking position and the fiber waste collecting unit is in the open state, the shutter control unit prohibits the shutter from moving from the blocking position to the communication position. Therefore, during operation of the air flow generation unit, it is possible to suppress external air from flowing into the fiber waste separation unit through the fiber waste discharge port and backflow of fiber waste.

  A textile machine according to an eleventh aspect of the present invention is the fiber machine according to any one of the first to tenth aspects, further comprising a recovery control unit that changes the state of the fiber waste recovery unit between the sealed state and the open state. The control unit changes the state of the fiber waste collecting unit from the sealed state to the open state when the fiber waste collecting unit is in the sealed state and the shutter is positioned at the communication position. It is characterized by prohibition.

  In the present invention, when the fiber waste collection unit is in a sealed state and the shutter is located at the communication position, the collection control unit is prohibited from changing the state of the fiber waste collection unit from the sealed state to the open state. Is done. Therefore, during operation of the air flow generation unit, it is possible to suppress external air from flowing into the fiber waste separation unit through the fiber waste discharge port and backflow of fiber waste.

  A textile machine according to a twelfth aspect of the present invention includes the air flow control unit that controls the operation of the air flow generation unit according to any one of the first to eleventh aspects of the invention. The airflow generation unit is always operated when performing the operation.

  Even if the air flow generation unit is always operating when the yarn processing unit is performing yarn processing, in the present invention, since the shutter that closes the fiber waste outlet is provided, the fibers collected in the fiber waste collection unit Waste can be discharged to the outside at any time. Therefore, it is not necessary to stop the yarn processing when discharging the fiber waste to the outside, and a reduction in production efficiency can be prevented.

  A textile machine according to a thirteenth aspect is the invention according to any one of the first to twelfth aspects, comprising a plurality of the yarn processing units, wherein the fiber waste separating portion is provided in common to the plurality of yarn processing units. It is characterized by being.

  In the present invention, the fiber waste generated in the plurality of yarn processing units flows into the fiber waste separation portion provided in common to the plurality of yarn processing units. Therefore, it is not necessary to install a fiber waste separation unit for each yarn processing unit, and an increase in cost can be suppressed.

  A textile machine according to a fourteenth aspect of the present invention includes, in the thirteenth aspect, a plurality of the fiber waste separation parts and the plurality of fiber waste recovery parts provided corresponding to the fiber waste separation parts, respectively. It is characterized by.

  In a configuration provided with a plurality of fiber waste separation portions provided in common to a plurality of yarn processing units, when providing one fiber waste recovery portion common to the plurality of fiber waste separation portions, the fiber waste recovery portion is enlarged, etc. There is a risk. In this invention, since the fiber waste collection | recovery part is provided corresponding to each fiber waste isolation | separation part, respectively, the enlargement of a fiber waste recovery part can be suppressed.

A textile machine according to a fifteenth aspect of the present invention is the textile machine according to the thirteenth aspect, comprising a plurality of the fiber waste separation parts and the one fiber waste recovery part provided in common to the plurality of fiber waste separation parts. It is characterized by.

  In the present invention, one fiber waste collecting part common to the plurality of fiber waste separating parts is provided. Therefore, compared with the case where the fiber waste collecting part is provided for each fiber waste separating part, it is possible to save the trouble of discharging the fiber waste collected in the fiber waste collecting part.

  A textile machine according to a sixteenth aspect of the invention is characterized in that, in the fourteenth or fifteenth aspect, a plurality of the airflow generation portions provided corresponding to the respective fiber waste separation portions are provided.

  If the airflow generation unit is provided in common for the plurality of fiber waste separation units, a high-output airflow generation unit is required, and there is a possibility that problems such as enlargement of the airflow generation unit and noise will occur. In this invention, since the airflow generation part is provided corresponding to each fiber waste separation part, respectively, enlargement of the airflow generation part, generation of noise, and the like can be suppressed.

It is the front view and top view of the spinning machine which concern on this embodiment. It is a block diagram which shows the electric constitution of a spinning machine. It is a schematic side view of a spinning unit. It is sectional drawing which shows the internal structure of a pneumatic spinning apparatus. It is the schematic of the whole fiber waste collection | recovery system. It is a figure which shows a fiber waste separation part and its periphery structure. It is VII-VII sectional drawing of Fig.6 (a). It is a figure which shows the motion of the fiber waste in a fiber waste isolation | separation part. It is a figure which shows the fiber waste separation part and its periphery structure based on a modification. It is XX sectional drawing of FIG. It is the schematic of the fiber waste collection | recovery system based on another modification. It is the schematic of the fiber waste collection | recovery system based on another modification. It is a figure which shows the fiber waste separation part and its periphery structure based on another modification. It is the schematic of the winding unit as an example of the yarn processing unit which concerns on another modification.

  Next, an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the direction in which a plurality of spinning units 2 (yarn processing units of the present invention) are arranged is the left-right direction, and the vertical direction in which gravity acts is the vertical direction (axial direction of the present invention). . The upper side corresponds to one side in the axial direction of the present invention, and the lower side corresponds to the other side in the axial direction of the present invention. Further, a direction orthogonal to the left-right direction and the up-down direction is defined as the front-rear direction.

(Schematic configuration of spinning machine)
First, a schematic configuration of the spinning machine 1 (textile machine of the present invention) will be described with reference to FIGS. 1 and 2. FIG. 1A is a front view of the spinning machine 1 according to this embodiment. FIG. 1B is a plan view of the spinning machine 1. In FIG. 1B, illustration of a winding device 15 and the like described later is omitted in order to make a pneumatic spinning device 12 described later visible. FIG. 2 is a block diagram showing an electrical configuration of the spinning machine 1. The spinning machine 1 includes a plurality of spinning units 2 arranged in the left-right direction, a prime mover box 3 arranged at the left end, a fiber waste collection system 4 and the like.

  Each spinning unit 2 produces a yarn Y by spinning a fiber bundle F sent from a draft device 11 (see FIG. 1B) with an air spinning device 12 (see FIG. 1B). Y is wound around the bobbin B by the winding device 15 (see FIG. 1A) to form the package P. In the present embodiment, as an example, it is assumed that 12 spindles of spinning units 2 are arranged, but the present invention is not limited to this.

  The prime mover box 3 includes a machine base control device 5, a display unit 6 including a monitor, an operation unit 7 including a keyboard, a drive source (not shown) common to the spinning units 2, and the like. The machine base control device 5 is configured to be able to communicate electrical signals with a unit control unit 20 (see FIG. 2) described later and a recovery system control unit 62 (see FIG. 2) described later. Centralized management and control. The display unit 6 displays information about each spinning unit 2 and the like. The operation unit 7 is for an operator to operate the machine base control device 5, and is configured such that setting of various conditions and various commands can be input to the machine base control device 5.

  The fiber waste recovery system 4 is for recovering fiber waste generated in the plurality of spinning units 2. Details will be described later.

(Spinning unit)
Next, the configuration of the spinning unit 2 will be described with reference to FIGS. 3 and 4. FIG. 3 is a schematic side view of the spinning unit 2. FIG. 4 is a cross-sectional view showing the internal structure of the pneumatic spinning device 12 described later.

  As shown in FIG. 3, the spinning unit 2 includes a draft device 11 arranged in order from the upstream side to the downstream side in the traveling direction of the fiber bundle F or the yarn Y (hereinafter simply referred to as the yarn traveling direction); An air spinning device 12, a yarn accumulating device 13, a yarn joining device 14, a winding device 15, a unit control unit 20 (see FIG. 2) and the like are provided.

  The draft device 11 is for drawing the sliver S, which is a raw material of the yarn, to a predetermined thickness so as to obtain a fiber bundle F. The draft device 11 is arranged in the lower part and the front part of the spinning unit 2. The draft device 11 includes a back roller pair 21, a third roller pair 22, a middle roller pair 23, and a front roller pair 24 in order from the upstream side in the yarn traveling direction. An apron belt 25 is wound around each of the two rollers constituting the middle roller pair 23. Note that a sliver case 26 for supplying the sliver S is disposed below the draft device 11. The spinning unit 2 and the sliver case 26 are separated by a partition wall 27.

  The pneumatic spinning device 12 is for producing a yarn Y by spinning the fiber bundle F supplied from the draft device 11 by twisting. The air spinning device 12 is disposed behind the draft device 11 (downstream in the yarn traveling direction). In the present embodiment, the pneumatic spinning device 12 twists the fiber bundle F using a swirling air flow.

  More specifically, as shown in FIG. 4, the pneumatic spinning device 12 includes a fiber guide portion 31, a spinning chamber 32, a nozzle block 33, and a hollow guide shaft body 34. The fiber guide unit 31 guides the fiber bundle F supplied from the upstream draft device 11 into the spinning chamber 32 through the fiber introduction path 31a. In the nozzle block 33, a plurality of nozzles 33a are formed around a path along which the fiber bundle F travels. A pneumatic feeding device (not shown) for supplying compressed air is connected to the plurality of nozzles 33a. A gap 35 is formed between the nozzle block 33 and the hollow guide shaft body 34. Inside the nozzle block 33, a decompression chamber 36 communicating with the spinning chamber 32 through a gap 35 is formed. One end of a duct 37 (see FIG. 3) is connected to the decompression chamber 36. Further, a later-described section duct 63 is connected to the other end of the duct 37 (see FIG. 3).

  As the compressed air is injected from the nozzle 33a, a swirling air flow is generated in the spinning chamber 32 (see the block arrow in FIG. 4). By this swirling air flow, the fiber ends of the plurality of fibers constituting the fiber bundle F are inverted and swirled (see the two-dot chain line in FIG. 4). The hollow guide shaft body 34 guides the generated yarn Y from the spinning chamber 32 to the outside of the pneumatic spinning device 12 through the fiber passage 34 a. Of the fiber bundle F, the fibers that did not become the yarn Y (that is, fiber waste before spinning) flow into the decompression chamber 36 from the spinning chamber 32 through the gap 35 together with the compressed air as the fiber waste D, and the duct. It passes through 37 and is collected by the fiber waste collection system 4. Details will be described later.

  Returning to FIG. 3, a yarn monitoring device 41 is disposed behind the pneumatic spinning device 12 (downstream in the yarn traveling direction). The yarn monitoring device 41 is for detecting a yarn defect when a failure occurs in the pneumatic spinning device 12 and a yarn breakage occurs, or when there is an abnormality in the thickness of the yarn Y. When the yarn monitoring device 41 detects a yarn defect, the yarn monitoring device 41 transmits a yarn defect detection signal to the unit controller 20 (see FIG. 2). When the unit controller 20 receives the yarn defect detection signal, the unit controller 20 stops the supply of air to the pneumatic spinning device 12 and interrupts the generation of the yarn Y.

  The yarn storage device 13 is disposed behind the yarn monitoring device 41 (downstream side in the yarn traveling direction). The yarn storage device 13 includes a yarn storage roller 42, a yarn hooking member 43, and a motor 44. The yarn accumulating roller 42 is configured so that a certain amount of the yarn Y is wound around the outer peripheral surface thereof and can be temporarily stored, and is rotated by a motor 44. At this time, the yarn hooking member 43 rotates integrally with the yarn storage roller 42 in a state where the yarn Y is hooked, whereby the yarn Y is stored in the yarn storage roller 42. The yarn storage device 13 pulls the yarn Y from the pneumatic spinning device 12 by applying tension to the yarn Y.

  The winding device 15 is for forming the package P by winding the yarn Y around the bobbin B while traversing the yarn Y. The winding device 15 is disposed above and in front of the yarn accumulating device 13 (downstream in the yarn traveling direction). The winding device 15 includes a cradle 47, a winding drum 48, and the like.

  The cradle 47 rotatably supports the bobbin B (package P). The winding drum 48 contacts the outer peripheral surface of the bobbin B or the package P when winding the yarn Y around the bobbin B mounted on the cradle 47 to form the package P. The winding drum 48 is rotationally driven by a drum drive motor (not shown). A traverse groove (not shown) is formed on the surface of the winding drum 48, and the yarn Y is traversed in the rotation axis direction of the winding drum 48 by being guided by the traverse groove. When the winding drum 48 rotates, the bobbin B (package P) mounted on the cradle 47 rotates, and the yarn Y is wound around the bobbin B while traversing.

  The yarn joining device 14 is provided between the yarn accumulating device 13 and the winding device 15. The yarn joining device 14 is for joining the upstream yarn Y and the downstream yarn Y when the yarn Y is cut for some reason. The yarn joining device 14 is, for example, a splicer device that performs yarn joining by a swirling air flow, a mechanical knotter, or the like.

  The spinning unit 2 is provided with yarn catching guide devices 51 and 52 for guiding the yarn Y to the yarn joining device 14 when the yarn joining device 14 performs the yarn joining. The yarn catching and guiding devices 51 and 52 are configured to be able to suck the yarn Y from the tip portions 51a and 52a, respectively. The yarn catching and guiding device 51 is centered on the base end portion 51b positioned below the yarn joining device 14, and the yarn catching and guiding device 52 is centered on the base end portion 52b located above the yarn joining device 14. Each is configured to be swingable. By swinging the yarn catching and guiding device 51 and moving the tip 51a to a position downstream of the yarn monitoring device 41 (see the one-dot chain line in FIG. 3), the upstream yarn Y is caught by the tip 51a. The Then, the upstream yarn Y is guided to the yarn joining device 14 by moving the tip 51a that has captured the upstream yarn Y to the upper side of the yarn joining device 14. Similarly, by swinging the yarn catching guide device 52 and swinging the tip portion 52a to the upstream position of the winding device 15 (see the one-dot chain line in FIG. 3), the yarn Y on the downstream side becomes the tip portion. Captured at 52a. Then, the downstream side yarn Y is guided to the yarn joining device 14 by moving the leading end 52a that has captured the downstream yarn Y to a position below the yarn joining device 14.

  A yarn monitoring device 16 is provided between the winding device 15 and the yarn joining device 14. The yarn monitoring device 16 transmits a yarn defect detection signal to the unit controller 20 when it is detected that there is a yarn defect in the yarn Y, such as an abnormality in the thickness of the yarn Y. When the unit controller 20 receives the yarn defect detection signal, the unit controller 20 causes the cutter 55 provided in the yarn monitoring device 16 to cut the yarn Y.

  The unit controller 20 controls each part of the spinning unit 2 and communicates with the machine control device 5.

  The spinning unit 2 having the above configuration generates the fiber bundle F by drafting the sliver S supplied from the sliver case 26 by the draft device 11. Furthermore, the spinning unit 2 forms the package P by spinning the fiber bundle F with the air spinning device 12 to generate the yarn Y, and winding the yarn Y around the bobbin B with the winding device 15. A series of these operations corresponds to the yarn processing of the present invention.

  When the yarn treatment is performed, compressed air is always supplied to the air spinning device 12, and air and fiber waste D are always discharged from the air spinning device 12. For this reason, the fiber waste recovery system 4 that recovers the discharged fiber waste D is configured to interrupt the recovery of the fiber waste D when the recovered fiber waste D is discharged to the outside. Then, the yarn processing itself must be interrupted, which may reduce production efficiency. Therefore, the fiber waste collection system 4 of the present embodiment can always collect the fiber waste D that is discharged from the air spinning device 12 without stopping the operation of the spinning unit 2, and can collect the recovered fiber waste D arbitrarily. It is equipped with a configuration for enabling discharge to the outside at timing. Hereinafter, the detail of the fiber waste collection | recovery system 4 is demonstrated using FIGS.

(Configuration of fiber waste collection system)
The structure of the fiber waste collection system 4 is demonstrated using FIGS. FIG. 5 is a schematic view of the entire fiber waste collection system. FIG. 6 is a diagram showing an internal structure of a fiber waste separating portion 64 to be described later and its peripheral configuration. FIG. 7 is a sectional view taken along line VII-VII in FIG.

  In the present embodiment, the fiber waste collection system 4 includes a plurality of (for example, three in this embodiment) fiber waste collection units 61 and a collection system control unit 62 that controls the plurality of fiber waste collection units 61 (FIG. 2). Reference).

  Each of the plurality of fiber waste collection units 61 is for separating and collecting the fiber waste D discharged from a plurality (for example, four in the present embodiment) of the air spinning device 12 from the air. Each of the plurality of fiber waste collection units 61 includes a section duct 63, a fiber waste separation part 64, a blower part 65 (an airflow generation part of the present invention), a fiber waste recovery part 66, and a shutter mechanism 67. Have.

  The section duct 63 is for communicating the decompression chambers 36 of the plurality of pneumatic spinning devices 12 and an internal space 74 (see FIG. 6) of the fiber waste separating unit 64 described later. As described above, one end of the duct 37 is connected to the decompression chamber 36 of each pneumatic spinning device 12. The other ends of the plurality of ducts 37 are connected to the section duct 63, respectively. The section duct 63 is connected to the fiber waste separation part 64 and communicates with an internal space 74 of the fiber waste separation part 64 via an inlet 75 described later.

  The fiber waste separation unit 64 is for separating the fiber waste D discharged from the air spinning device 12 of the plurality of spinning units 2 from the air. The fiber waste separation part 64 is provided in common to the plurality of spinning units 2. The fiber waste separating part 64 is a member having a substantially cylindrical shape (see FIGS. 6 and 7). As shown in FIG. 6, the fiber waste separating portion 64 includes a peripheral wall 71 having an inner peripheral surface 73 and an upper wall 72 provided at the upper end portion of the peripheral wall 71. The entire inner peripheral surface 73 is a tapered surface. In other words, the inner diameter of the peripheral wall 71 decreases as it goes upward and increases as it goes downward. Due to the peripheral wall 71 and the upper wall 72, a substantially frustoconical internal space 74 is formed in the fiber waste separating portion 64.

  An inflow port 75 is formed in the middle of the peripheral wall 71 in the vertical direction. Further, a pipe 78 extending from the inlet 75 in the tangential direction of the inner peripheral surface 73 and protruding from the outer peripheral surface of the peripheral wall 71 is provided in a cross section orthogonal to the vertical direction (see FIG. 7). A section duct 63 is connected to the pipe 78. Thereby, the air containing the fiber waste D passes through the section duct 63 and the pipe 78 and flows into the internal space 74 through the inflow port 75. An exhaust port 76 for exhausting air is formed in the upper wall 72. That is, the exhaust port 76 is disposed above the inflow port 75. Further, a substantially circular fiber waste outlet 77 is formed over substantially the entire area of the lower end surface of the fiber waste separator 64. That is, the fiber waste outlet 77 is disposed below the inflow port 75.

  The blower portion 65 is for generating a swirling flow in the internal space 74 of the fiber waste separating portion 64. The blower unit 65 includes a fan (not shown) that discharges air to the outside by rotating, for example. The blower portion 65 is disposed above the fiber waste separator 64 and is connected to the fiber waste separator 64 via the exhaust port 76. The blower unit 65 is electrically connected to the recovery system control unit 62 (see FIG. 2), and its operation is controlled by the recovery system control unit 62.

  The fiber waste collection unit 66 is for collecting the fiber waste D discharged from the fiber waste discharge port 77. As shown in FIG. 6, the fiber waste collection unit 66 is disposed below the fiber waste separation unit 64. The fiber waste collection part 66 has a box-shaped member 81 and a door part 82. The box-shaped member 81 has a hollow substantially rectangular parallelepiped shape. As a result, a substantially rectangular parallelepiped internal space 83 is formed inside the box-shaped member 81. A substantially circular opening is formed in the upper end portion of the box-shaped member 81, and the upper end portion of the box-shaped member 81 and the lower portion of the fiber waste separating portion 64 are joined. The internal space 74 of the fiber waste separation part 64 and the internal space 83 of the fiber waste recovery part 66 can communicate with each other via a fiber waste discharge port 77. In addition, an opening 84 that allows the internal space 83 to communicate with the outside is formed over substantially the entire lower surface of the box-shaped member 81. The door part 82 has two doors 85 and 86, for example. The two doors 85 and 86 are plate-like members and have a shape that surrounds a support member 92 described later and closes the opening 84. The doors 85 and 86 are configured to be manually opened and closed by lever operation, for example. The door 85 is movable between a closed position that closes the opening 84 (see FIG. 6A) and an open position that opens to the left of the closed position and opens the opening 84 (see FIG. 6B). It is configured. Similarly, the door 86 is configured to be movable between a closed position and an open position that is to the right of the closed position. When the doors 85 and 86 are in the closed position, the internal space 83 of the fiber waste collecting unit 66 is in a sealed state sealed from the outside. When the doors 85 and 86 are in the open position, the internal space 83 of the fiber waste collecting unit 66 is in an open state opened to the outside. Thus, the state change of the fiber waste collection | recovery part 66 is possible between a sealed state and an open state.

  The shutter mechanism 67 opens or closes the fiber waste outlet 77 to connect or block the internal space 74 of the fiber waste separation unit 64 and the internal space 83 of the fiber waste collection unit 66. The shutter mechanism 67 includes, for example, a shutter 91, a support member 92, an air cylinder 93 (driving unit of the present invention), and the like. The shutter 91 is a disk-like member having an approximately circular shape whose upper surface is approximately the same size as the fiber waste outlet 77. The support member 92 is a substantially cylindrical member that is connected to the shutter 91 and supports the shutter 91 from below. The air cylinder 93 has a working chamber (not shown) through which compressed air is supplied and discharged, and is configured to move the support member 92 and the shutter 91 up and down by supplying and discharging compressed air to and from the working chamber. . Specifically, the compressed air is supplied to and discharged from the working chamber by, for example, opening and closing an electromagnetic valve 94 (see FIG. 2). The electromagnetic valve 94 is electrically connected to the recovery system control unit 62, and its operation is controlled by the recovery system control unit 62.

  The shutter 91 is movable between a communication position and a blocking position above the communication position by the operation of the air cylinder 93. That is, when the shutter 91 is located at the communication position, the shutter 91 opens the fiber waste outlet 77, and the internal space 74 of the fiber waste separator 64 and the internal space 83 of the fiber waste collector 66 communicate. (See FIG. 6A). On the other hand, when the shutter 91 is located at the blocking position, the shutter 91 closes the fiber waste discharge port 77, and the internal space 74 of the fiber waste separating unit 64 and the internal space 83 of the fiber waste collecting unit 66 are blocked. (See FIG. 6B). Thus, the shutter 91 can open and close the fiber waste outlet 77 and can move up and down between the communication position and the blocking position.

  The collection system control unit 62 includes a CPU, a ROM, a RAM, and the like. The collection system control unit 62 controls each unit by the CPU in accordance with a program stored in the ROM. The collection system control unit 62 is configured to be able to control the blower unit 65 and the electromagnetic valve 94 described above, and functions as an airflow control unit and a shutter control unit of the present invention. The collection system control unit 62 communicates with the machine base control device 5.

(Operation of fiber waste collection system)
Next, operation | movement of the fiber waste collection | recovery system 4 provided with the above structure is demonstrated using FIG.5, FIG.7, FIG.8. FIG. 8 is a diagram illustrating the movement of the fiber waste D in the fiber waste separation unit 64. In addition, the broken line arrow of FIG.5, FIG.7, FIG.8 has shown the flow of the air, and the solid line arrow has shown the flow of the fiber waste D, respectively.

(Separation of fiber waste and air)
The separation of the fiber waste D and air using the fiber waste recovery system 4 will be described. First, each of the plurality of spinning units 2 performs the above-described yarn processing. That is, the plurality of spinning units 2 winds the generated yarn Y around the bobbin B while generating the yarn Y by the pneumatic spinning device 12. During this operation, air containing fiber waste is constantly discharged from the pneumatic spinning device 12 to the duct 37.

  The machine base control device 5 periodically communicates with the unit control unit 20 of each spinning unit 2 and the collection system control unit 62 of the fiber waste collection system 4. The machine control device 5 causes the collection system control unit 62 to control the blower unit 65 of the fiber waste collection unit 61 connected to the spinning unit 2 when a certain spinning unit 2 is performing yarn processing. The unit 65 is always operated.

  When the blower portion 65 of a certain fiber waste collection unit 61 operates, the air in the fiber waste separation portion 64 is discharged through the exhaust port 76. Then, a negative pressure is generated in the internal space 74 of the fiber waste separator 64, and the air containing the fiber waste D passes through the duct 37 and the section duct 63 and enters the fiber waste separator 64 via the inflow port 75. Inflow. As shown in FIGS. 7 and 8, the air that has flowed into the fiber waste separation part 64 flows along the inner peripheral surface 73, becomes a swirl flow that turns around the axial direction with the vertical direction as the axial direction, and the exhaust port It is discharged through 76. In this way, a swirl flow is generated by the operation of the blower unit 65.

  The fiber waste D that flows into the internal space 74 together with the air moves so as to wind a vortex along the inner peripheral surface 73. Thereby, the centrifugal force 100 which goes to the radial direction outer side of a vortex acts on the fiber waste D (refer FIG. 8). Here, as described above, the inner diameter of the peripheral wall 71 increases from the inlet 75 toward the lower side (fiber waste outlet 77 side). For this reason, the centrifugal force 100 includes a component 101 (component that does not contribute to the movement of the fiber waste D) perpendicular to the inner peripheral surface 73 and a component 102 (fiber scrap D in the vertical direction) that is parallel to the inner peripheral surface 73. Can be broken down into components that are directed toward the outlet 77. The latter component 102 guides the fiber waste D along the inner peripheral surface 73 toward the fiber waste outlet 77 in the vertical direction. Further, since gravity acts on the fiber waste D, the fiber waste D is more easily moved to the fiber waste discharge port 77 located below the inflow port 75. Thus, the fiber waste D in the fiber waste separation part 64 is separated from the air discharged from the exhaust port 76. As shown in FIG. 8A, the fiber waste D separated from the air is collected in the internal space 83 of the fiber waste collection part 66 through the fiber waste discharge port 77 when the shutter 91 is in the communication position. Deposited at the bottom of the internal space 83. At this time, by keeping the doors 85 and 86 in the closed position, the internal space 83 of the fiber waste collection unit 66 is sealed, and external air is prevented from flowing into the fiber waste collection unit 66. .

(Exhaust of fiber waste to the outside)
Next, discharge of the accumulated fiber waste D will be described. When discharging the fiber waste D from the internal space 83 of the fiber waste recovery part 66 to the outside, it is necessary to open the doors 85 and 86 to bring the fiber waste recovery part 66 into an open state. However, if the fiber waste collection unit 66 is opened when the shutter 91 is in the communication position, the air pressure in the internal space 83 of the fiber waste collection unit 66 and the internal space 83 of the fiber waste collection unit 66 is lower than the atmospheric pressure. There is a possibility that external air flows in and the fiber waste D flows backward into the fiber waste separation part 64. Therefore, when discharging the fiber waste D, as shown in FIG. 8B, the shutter 91 is moved to the blocking position to block the internal space 83 of the fiber waste separating portion 64 and the internal space 83 of the fiber waste collecting portion 66. To do. Specifically, for example, when the operator operates the operation unit 7 of the prime mover box 3 and the collection system control unit 62 operates the air cylinder 93 via the machine base control device 5, the shutter 91 is brought into the blocking position. Move. Thereby, even if the doors 85 and 86 are moved to the open position during the operation of the blower portion 65, it is possible to prevent external air from flowing into the internal space 74 of the fiber waste separation portion 64. In this way, the fiber waste D can be discharged from the internal space 83 of the fiber waste collection unit 66 by an operator's manual operation or a robot. Even during the discharging operation, the blower portion 65 can be operated at all times to always separate the fiber waste D from the air.

  As described above, the inner diameter of the peripheral wall 71 increases in the vertical direction from the inlet 75 toward the fiber waste outlet 77. Thereby, the centrifugal force 100 acting on the fiber waste D flowing in from the inflow port 75 is decomposed into a component parallel to the component perpendicular to the inner peripheral surface 73 of the peripheral wall 71, and the fiber waste D is along the inner peripheral surface 73. Thus, it is guided to the side where the inner diameter is increased, that is, the fiber waste outlet 77 side. Therefore, it is possible to prevent the fiber waste D flowing in from the inflow port 75 from being sucked to the exhaust port 76 side, and to reliably move the fiber waste D to the fiber waste discharge port 77 side.

  Further, the state of the fiber waste collecting unit 66 can be changed between a sealed state and an open state. Further, the internal space 83 of the fiber waste collecting part 66 and the internal space 74 of the fiber waste separating part 64 are configured to communicate with each other, and the shutter 91 communicates with the communication position where the internal space 74 and the internal space 83 communicate with each other. It can move between the blocking position to block. When the fiber waste collection unit 66 is in a sealed state and the shutter 91 is in the communication position, the fiber waste is collected by the fiber waste collection unit 66. On the other hand, when the shutter 91 is in the blocking position, even if the fiber waste collection unit 66 is opened during the operation of the blower unit 65, air flows from the outside into the fiber waste separation unit 64 and the fiber waste D flows backward. Therefore, the fiber waste collecting part 66 can be opened and the recovered fiber waste D can be discharged to the outside. Therefore, even when the blower portion 65 is operating, the fiber waste D can be discharged to the outside.

  Further, since gravity acts on the side from the inlet 75 toward the fiber waste outlet 77 in the vertical direction, the fiber waste D can be moved to the fiber waste outlet 77 side more reliably.

  In addition, since the entire inner peripheral surface 73 of the peripheral wall 71 is a tapered surface, the fiber scraps along the inner peripheral surface 73 increase in the inner diameter over the entire inner peripheral surface of the peripheral wall 71 in the axial direction. That is, it is guided to the fiber waste outlet side. Therefore, it is possible to reliably prevent the fiber waste flowing in from the inflow port 75 from being sucked to the exhaust port side, and to move the fiber waste more reliably and smoothly to the fiber waste discharge port side. Fiber scrap

  Moreover, since the fiber waste discharge port 77 is formed over the whole area of the lower end surface of the fiber waste separation part 64, the fiber waste D can be hardly caught by the fiber waste discharge port 77. Further, the area of the fiber waste outlet 77 can be increased. Therefore, the fiber waste D can be reliably discharged from the fiber waste discharge port 77.

  Further, since the shutter 91 can open and close the fiber waste outlet 77 and move in the vertical direction, the movement distance of the shutter 91 necessary to completely open or close the fiber waste outlet 77 is shortened. Can do. Therefore, the time taken to open and close the fiber waste outlet 77 can be shortened.

  In addition, when the spinning unit 2 is performing yarn processing, even if the blower unit 65 is always operating, the shutter 91 that closes the fiber waste outlet 77 is provided, so that the fiber waste is collected in the fiber waste recovery unit 66. The fiber waste D can be discharged to the outside at an arbitrary timing. Therefore, it is not necessary to stop the yarn processing when discharging the fiber waste D to the outside, and a reduction in production efficiency can be prevented.

  Further, the fiber waste D generated in the plurality of spinning units 2 flows into the fiber waste separating portion 64 provided in common to the plurality of spinning units 2. Therefore, it is not necessary to install the fiber waste separation unit 64 for each spinning unit 2, and an increase in cost can be suppressed.

  Moreover, since the fiber waste collection | recovery part 66 is provided corresponding to each fiber waste isolation | separation part 64, the enlargement of the fiber waste collection | recovery part 66 can be suppressed.

  Moreover, since the blower part 65 is provided corresponding to each fiber waste separation part 64, the enlargement of the blower part 65, noise generation, etc. can be suppressed.

  Next, a modified example in which the above embodiment is modified will be described. However, components having the same configuration as in the above embodiment are given the same reference numerals and description thereof is omitted as appropriate.

(1) In the above embodiment, the entire inner peripheral surface 73 of the fiber waste separating portion 64 is a tapered surface, but the present invention is not limited to this. For example, a curved surface may be formed from the inlet 75 to the fiber waste outlet 77 in the vertical direction. Further, the inner diameter of the peripheral wall 71 does not have to become smaller from the inflow port 75 toward the exhaust port 76 side. For example, the inner diameter may be constant from the inflow port 75 to the exhaust port 76 in the vertical direction. At least the inner diameter of the peripheral wall 71 only needs to increase in the vertical direction from the inlet 75 toward the fiber waste outlet 77 side.

(2) In the above embodiments, the exhaust port 76 is formed in the upper wall 72. However, the present invention is not limited to this. The exhaust port 76 only needs to be arranged on the opposite side of the fiber waste discharge port 77 across the inflow port 75 in the vertical direction. For example, the exhaust port 76 may be formed in the peripheral wall 71.

(3) In the embodiments described above, the shutter 91 is configured to be movable up and down, but the present invention is not limited to this. For example, the shutter 91 may be movable in an oblique direction including the front-rear and left-right directions. Since the shutter 91 can move at least in the vertical direction, the time required to open and close the shutter 91 can be shortened. Alternatively, although it takes time to open and close the shutter 91, the shutter 91 may be movable only in the front-rear direction or the left-right direction.

(4) In the embodiments described above, the fiber waste outlet 77 is formed over substantially the entire area of the lower end surface of the fiber waste separator 64. However, another configuration may be used. . For example, in the fiber waste collection unit 61a shown in FIGS. 9 and 10, the fiber waste discharge port 77a may be formed in the peripheral wall 71a of the fiber waste separation part 64a. More specifically, the fiber waste separation part 64a has a bottom 79 that closes the lower end of the peripheral wall 71a, and the fiber waste discharge port 77a is formed at the lower end of the peripheral wall 71a. Furthermore, as shown in FIG. 10, the fiber waste separator 64 a has a cross section perpendicular to the vertical direction, from the fiber waste outlet 77 a to the formation position (point 103) of the fiber waste outlet 77 a on the inner peripheral surface 73 a. It has the pipe | tube 80 (pipe part of this invention) extended in a tangential direction. In more detail, the pipe | tube 80 is arrange | positioned on the extension line | wire of the direction where the fiber waste D turns. Moreover, as shown in FIG. 9, the fiber waste collection | recovery part 66a is arrange | positioned at the side of the fiber waste separation part 64a, and the opening which connects the internal space 74a of the fiber waste separation part 64a and the internal space 83a of the fiber waste recovery part 66a 87 may be formed on the side surface of the box-shaped member 81a. Moreover, the opening 84a which connects the internal space 83a and the exterior may be formed in the side surface on the opposite side to the side surface in which the opening 87 was formed, and the door part 82a which block | closes the opening 84a may be provided. In addition, the door part 82a may be comprised so that opening and closing is possible by the motor 88 etc., for example. Furthermore, the shutter mechanism 67a may include a shutter 91a that closes the opening 84a and a support member 92a that supports a side surface portion of the shutter 91a, and the shutter 91a may be configured to be movable in the left-right direction.

  With the above configuration, the fiber waste outlet 77a can be made smaller than in the previous embodiments, and the size of the shutter 91a can be made smaller. Further, since the tube 80 extends in the tangential direction of the inner peripheral surface 73a, the separated fiber waste D flows smoothly along the tube 80 toward the fiber waste collection unit 66a. Therefore, the fiber waste D can be discharged smoothly. Moreover, since the fiber waste discharge port 77a is formed in the lower end part of the surrounding wall 71a, even if the fiber waste D is failed to be discharged from the fiber waste discharge port 77a, the fiber waste D is swung and is again discharged. Move to the vicinity of the exit 77a. Therefore, it can suppress that the fiber waste D accumulates in the vicinity of the bottom 79. In this modification, the shutter 91a is configured to be able to open and close the opening 84a. However, the present invention is not limited to this. For example, the shutter 91a may be provided in the middle of the tube 80 or the like.

(5) For example, in the modified example of the above (4), when the fiber waste D collected by the fiber waste collection unit 66a is discharged to the outside, the shutter 91a is positioned at the blocking position. At this time, the fiber waste D separated in the fiber waste separation part 64a is not collected in the fiber waste recovery part 66a but stays in the fiber waste separation part 64a as it is. Then, there is a possibility that the fiber waste D staying in the fiber waste separation part 64a is accumulated in the vicinity of the fiber waste discharge port 77a and the fiber waste discharge port 77a is clogged. Therefore, a configuration for preventing this may be provided. FIG. 11 is a schematic view showing one of a plurality of fiber waste recovery units 61b provided in the fiber waste recovery system 4b.

  The configuration of the fiber waste collection unit 61b will be described. The fiber waste separation part 64b has the same configuration as the fiber waste separation part 64a of the modified example of the above (4). The blower portion 65b is not directly connected to the fiber waste separation portion 64b, but is connected to the section duct 63b and is configured to send air into the fiber waste separation portion 64b. In this modification, the first duct 111 is a combination of the section duct 63 b and the duct 37 connected to each pneumatic spinning device 12. That is, one end of the first duct 111 is connected to the air spinning device 12 of the spinning unit 2, and the other end is connected to the fiber waste separating part 64b via the inflow port 75b. The fiber waste collection unit 61b includes a second duct 112. The second duct 112 has one end connected to the fiber waste separating part 64b via the fiber waste discharge port 77b and the other end connected to the middle part of the first duct 111. In the middle of the second duct 112, for example, a bent corner 113 is provided. An opening 114 is formed in the corner 113. More specifically, the opening 114 is formed on an extension line in the flow direction of the air and the fiber waste D on the upstream side of the corner portion 113. The fiber waste collection part 66b is connected to the corner part 113 through the opening 114. Thereby, the internal space 83b of the fiber waste collection | recovery part 66b is comprised so that fiber waste D can be collect | recovered by communicating with the internal space 115 of the 2nd duct 112 via the opening 114. FIG. By opening the opening 114, the shutter 91b closes the opening 114 and a communication position (see FIG. 11A) that connects the internal space 83b of the fiber waste collecting portion 66b and the internal space 115 of the second duct. It is configured to be movable between an internal space 83b of the fiber waste collecting part 66b and a blocking position (see FIG. 11B) that blocks the internal space 115 of the second duct. In other words, when the shutter 91b is in the communication position, the internal space 83b of the fiber waste collection unit 66b and the second duct communicate with each other, whereby the internal space 83b of the fiber waste collection unit 66b and the internal space 74b of the fiber waste separation unit 64b. Are communicating. Further, when the shutter 91b is in the blocking position, the internal space 83b of the fiber waste collecting unit 66b and the second duct are blocked, whereby the internal space 83b of the fiber waste collecting unit 66b and the internal space 74b of the fiber waste separating unit 64b. Is blocked. The shutter 91b may be configured to be operable by an air cylinder as described in the above embodiments, but is configured to be operable by a motor 97 (see FIG. 11A), for example. Also good. Alternatively, the shutter 91b may be a manual type.

  In the fiber waste collection unit 61b having the above configuration, the air containing the fiber waste D is sent into the internal space 74b of the fiber waste separation portion 64b by the operation of the blower portion 65b. A swirling flow is generated in the internal space 74b as in the previous embodiments, and the fiber waste D is separated from the air. When the shutter 91b is located at the communication position (see FIG. 11A), the separated fiber waste D passes through the internal space 115 of the second duct 112 and passes through the opening 114 to the fiber waste recovery unit 66. Collected in. In addition, when some fiber waste D is collect | recovered and failed, the said fiber waste D returns to the middle part of the 1st duct 111 through the internal space 115 of the 2nd duct 112 as it is, and fiber waste again from the inflow port 75b. It flows into the separation part 64b. Thus, the first duct 111 and the second duct 112 form a reflux path for the fiber waste D. On the other hand, while the shutter 91b is located at the blocking position (see FIG. 11A), the separated fiber waste D is not collected by the fiber waste collection unit 66b, but circulates through the reflux path. For this reason, it becomes difficult for the fiber waste D to stay in the fiber waste separation part 64b. Therefore, the fiber waste outlet 77b can be prevented from being clogged.

(6) In the above embodiments, the fiber waste recovery system 4 includes a plurality of fiber waste recovery units 61, and each fiber waste recovery unit 61 includes the fiber waste recovery unit 66. Absent. For example, as shown in FIG. 12, the fiber waste collection system 4c may include a plurality of fiber waste separation parts 64 and a plurality of blower parts 65, and may have a common fiber waste recovery part 66c. In this modification, a duct 121 that is common to the plurality of fiber waste separation parts 64 is provided between the fiber waste recovery part 66 c and the plurality of fiber waste separation parts 64. Moreover, the fiber waste collection system 4c has the blower part 122 for making the air and the fiber waste D in the duct 121 flow. The blower part 122 generates an air flow in the duct 121 and causes the fiber waste D in the duct 121 to flow toward the fiber waste recovery part 66c. Thereby, the fiber waste D isolate | separated by each fiber waste separation part 64 is collect | recovered in the fiber waste collection part 66c. Therefore, compared with the case where the fiber waste collection part 66 is provided for each fiber waste separation part 64, the labor of discharging the fiber waste D recovered in the fiber waste recovery part 66c can be saved.

(7) In order to prevent the fiber waste D in the fiber waste collection unit 66 from flowing back into the fiber waste separation unit 64, the shutter 91 is used when the separated fiber waste D is collected in the fiber waste collection unit 66. Must be located at the communication position, and the fiber waste collecting section 66 must be kept in a sealed state. Further, when discharging the fiber waste D from the fiber waste recovery unit 66 to the outside, the fiber waste recovery unit 66 needs to be opened after the shutter 91 is positioned at the blocking position. When the operator performs these operations, the fiber waste collection unit has the following configuration as an example in order to prevent the shutter 91 from being accidentally positioned in the open position and the fiber waste collection unit 66 from being opened. May be provided. For example, as shown in FIG. 13A, the fiber waste collection unit 61d includes a sensor 95 that detects the open / closed state of the doors 85 and 86, and the sensor 95 is electrically connected to the collection system control unit 62. It may be connected. The collection system control unit 62 prohibits the movement of the shutter 91 from the blocking position to the communication position when the shutter 91 is located at the blocking position and the fiber waste collecting section 66 is in the open state. That is, the collection system control unit 62 maintains the position of the shutter 91 at the blocking position when the doors 85 and 86 are located at the open position based on the detection result of the sensor 95. Alternatively, for example, as shown in FIG. 13B, the fiber waste collection unit 61e has an electromagnetic lock 96 configured to lock and unlock the doors 85 and 86, and the electromagnetic lock 96 is recovered. The system controller 62 may be electrically connected. In this configuration, the recovery system control unit 62 controls the electromagnetic lock 96 to lock the doors 85 and 86 when the fiber waste recovery unit 66 is in a sealed state and the shutter 91 is located at the communication position. The doors 85 and 86 are prevented from moving from the closed position to the open position. That is, the collection system control unit 62 prohibits the fiber waste collection unit 66 from changing the state from the sealed state to the open state. In this case, the collection system control unit 62 functions as a collection control unit of the present invention. Or although illustration is abbreviate | omitted, you may become the structure by which both the sensor 95 and the electromagnetic lock 96 were provided. With the configuration as described above, it is possible to suppress the outside air from flowing into the fiber waste separation part 64 through the fiber waste discharge port 77 and backflow of the fiber waste D during the operation of the blower portion 65.

(8) In the embodiments described above, the spinning machine 1 includes the fiber waste collection system 4, but the fiber waste collection system 4 may be applied to other textile machines. For example, the fiber waste collection system 4 is applied to an automatic winder configured by arranging a plurality of winding units 202 that wind a yarn Ya around a winding bobbin Bm to form a package Pa as shown in FIG. May be. That is, the fiber waste collection system 4 may collect not only the fiber waste D (fiber waste before spinning) described above but also spun yarn waste (fiber waste Da described later). Although a detailed description is omitted, the winding unit 202 includes a yarn supplying section 211 configured to be able to supply a yarn supplying bobbin Bk around which the spun yarn Ya is wound, and a yarn joining device 214. A processing unit 212 that performs various processing such as piecing on the yarn Ya unwound from the bobbin Bk, a winding unit 213 that winds the yarn Ya around the winding bobbin Bm, and the like are provided. In the vicinity of the yarn supplying portion 211, a suction portion 221 for sucking fiber waste Da generated when the yarn Ya is unwound and a duct 222 communicating with the suction portion 221 are arranged. Further, the processing unit 212 includes hollow suction arms 231 and 232 for guiding the yarn Ya to the yarn joining device 214 at the time of yarn joining and sucking the fiber waste Da generated at the time of yarn joining. The tips of the suction arms 231 and 232 communicate with the ducts 233 and 234, respectively. The ducts 222, 233 and 234 are connected to the section duct 63. A valve 235 is provided between the ducts 233 and 234 and the section duct 63 to communicate and block the ducts 233 and 234 and the section duct 63.

  The winding unit 202 unwinds the yarn Ya from the yarn supplying bobbin Bk of the yarn supplying unit 211, and winds the yarn Ya around the winding bobbin Bm in the winding unit 213 to form a package Pa. In this modification, the above operation corresponds to the yarn processing of the present invention. In particular, in the yarn supplying section 211, fiber waste Da is always generated when the yarn Ya is unwound. Therefore, during the yarn processing of the winding unit 202, fiber waste is fed from the suction portion 221 to the duct 222 and the section duct 63. D always flows in. It is effective to apply the fiber waste collection system 4 to such a winding unit 202.

(9) In the embodiments described above, the fiber waste separating portion 64 is configured such that the axial direction of the swirl flow is in the vertical direction, and the fiber waste discharge port 77 is formed below the inflow port 75. However, it is not limited to this. That is, a strong centrifugal force is acting on the fiber waste D moving so as to spiral along the inner peripheral surface 73, and the fiber waste D is generated along the inner peripheral surface 73 as described above. Guided to the discharge port 77 side. For this reason, the blower part 65 which can produce | generate the swirling flow which the force to the fiber waste discharge port 77 side which acts on the fiber waste D overcomes gravity is provided, the fiber waste separation part 64, the blower part 65, the fiber waste recovery part 66 and the shutter mechanism 67 may be installed upside down or installed sideways.

(10) Although the collection system control unit 62 is provided separately from the machine base control device 5 in the above embodiments, the present invention is not limited to this. For example, the machine base control device 5 may directly control the fiber waste collection system 4.

(11) The fiber waste collection unit 61 may not be provided in common for the plurality of spinning units 2. That is, the fiber waste collection unit 61 may be provided for each spinning unit 2. In this case, the section duct 63 may be omitted.

(12) In the above embodiments, the blower portion 65 is provided corresponding to each fiber waste separating portion 64, but is not limited thereto. A common blower part may be provided in the plurality of fiber waste separating parts 64.

(13) In the embodiments described above, the blower portion 65 is an airflow generation portion that generates a swirl flow in the fiber waste separation portion 64, but is not limited thereto. Instead of the blower unit 65, for example, an aspirator that sucks air may be applied as the airflow generation unit.

(14) The pneumatic spinning device 12 is not limited to that described above. For example, you may employ | adopt another type of spinning apparatus provided with a pair of air jet nozzle which twists the fiber bundle F in the mutually opposite direction.

1 Spinning machine (textile machine)
2 Spinning unit (yarn processing unit)
62 recovery system control unit 64 fiber waste separation unit 65 blower unit (air flow generation unit)
66 Fiber waste collection part 71 Peripheral wall 73 Inner peripheral surface 74 Internal space 75 Inlet 76 Exhaust port 77 Fiber waste outlet 80 Tube (pipe part)
83 Internal space 91 Shutter 93 Air cylinder (drive unit)
111 First duct 112 Second duct 114 Opening 115 Internal space D Textile waste Y Yarn

Claims (16)

A yarn processing unit for processing the yarn;
A fiber waste separation unit for separating fiber waste generated from the yarn processing of the yarn processing unit from air;
An airflow generating unit that is connected to the fiber waste separating unit and generates a swirling flow that swirls around a predetermined axial direction in the internal space of the fiber waste separating unit;
A textile machine comprising: a textile waste collecting section for collecting textile waste separated by the textile waste separating section,
The fiber waste separating part is
A peripheral wall having an inner peripheral surface;
Formed in the middle of the peripheral wall in the axial direction, an inflow port into which air containing fiber waste flows, and
An exhaust port that is formed on one side in the axial direction from the inflow port and from which air is discharged;
It is formed on the other side in the axial direction from the inflow port, and has a fiber waste outlet from which fiber waste is discharged,
The inner diameter of the cross section perpendicular to the axial direction of the peripheral wall is increased from the inlet to the fiber waste outlet in the axial direction,
The fiber waste collecting unit can switch between an open and closed state between a sealed state sealed to the outside and an open state opened to the outside,
The internal space of the fiber waste collection part is configured to be able to communicate with the internal space of the fiber waste separation part via the fiber waste discharge port,
Between the communication position for communicating the internal space of the fiber waste separation part and the internal space of the fiber waste recovery part, and the blocking position for blocking the internal space of the fiber waste separation part and the internal space of the fiber waste recovery part A textile machine comprising a movable shutter. The axial direction is a vertical direction,
The textile machine according to claim 1, wherein the fiber waste outlet is disposed below the inlet.   3. The fiber according to claim 1, wherein the entire inner peripheral surface of the peripheral wall is a tapered surface in which the inner diameter of the peripheral wall increases as it goes from the one side to the other side in the axial direction. machine.   The textile machine according to any one of claims 1 to 3, wherein the fiber waste outlet is formed over the entire region of the other end face in the axial direction of the fiber waste separator.   The textile machine according to claim 4, wherein the shutter is configured to be able to open and close the fiber waste outlet and to move at least in the axial direction.   The textile machine according to any one of claims 1 to 3, wherein the fiber waste outlet is formed in the peripheral wall.   The fiber waste separating part has a pipe part extending in a tangential direction at the formation position of the fiber waste discharge port on the inner peripheral surface of the peripheral wall from the fiber waste discharge port in a cross section orthogonal to the axial direction. The textile machine according to claim 6. The axial direction is a vertical direction,
The fiber waste separating portion is configured such that the other side in the axial direction is a lower side, and has a bottom portion that closes a lower end of the peripheral wall,
The textile machine according to claim 6 or 7, wherein the fiber waste outlet is formed at a lower end portion of the peripheral wall. A first duct having one end connected to the yarn processing unit and the other end connected to the fiber waste separator via the inflow port;
A second duct having one end connected to the fiber waste separating part via the fiber waste outlet and the other end connected to a middle part of the first duct;
An opening is formed in the middle of the second duct,
The internal space of the fiber waste collecting part is configured to be able to recover fiber waste by communicating with the internal space of the fiber waste separating part via the opening and the internal space of the second duct,
The shutter is configured to block the communication position that communicates the internal space of the fiber waste separation part and the internal space of the fiber waste recovery part, and the internal space of the fiber waste recovery part and the internal space of the second duct. The textile machine according to any one of claims 1 to 8, wherein the textile machine is movable between an internal space of the fiber waste separating section and a blocking position that blocks the internal space of the fiber scrap collecting section. A drive unit that moves the shutter between the communication position and the blocking position;
A shutter control unit for controlling the driving unit,
The shutter control unit prohibits movement of the shutter from the blocking position to the communication position when the shutter is positioned at the blocking position and the fiber waste collecting unit is in the open state. A textile machine according to any one of claims 1 to 9. A recovery control unit that changes the state of the fiber waste recovery unit between the sealed state and the open state,
The collection control unit is configured such that when the fiber waste collection unit is in the sealed state and the shutter is positioned at the communication position, the fiber waste collection unit is in the open state from the sealed state. Change is prohibited, The textile machine in any one of Claims 1-10 characterized by the above-mentioned. An airflow control unit for controlling the operation of the airflow generation unit;
The textile machine according to any one of claims 1 to 11, wherein the airflow control unit always operates the airflow generation unit when the yarn processing unit is performing yarn processing. A plurality of the yarn processing units;
The textile machine according to any one of claims 1 to 12, wherein the fiber waste separation part is provided in common to the plurality of yarn processing units. A plurality of the fiber waste separating parts;
The textile machine according to claim 13, further comprising a plurality of the fiber waste collecting portions provided corresponding to each of the fiber waste separating portions. A plurality of the fiber waste separating parts;
The textile machine according to claim 13, further comprising: one fiber waste collection unit provided in common to the plurality of fiber waste separation units.   The textile machine according to claim 14 or 15, comprising a plurality of the airflow generation units provided corresponding to the respective fiber waste separation units.

Images