JP2017053052A - Yarn winding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a configuration capable of removing a cotton fly deposited on a filter member in a yarn winding machine for connecting a plurality of section ducts and a main duct.SOLUTION: A fine spinning machine includes: a spinning unit; a plurality of section ducts 31; a section blower 32; a filter member 33; a main duct 37; a main blower; opening/closing members (a first opening/closing member 65 and a second opening/closing member 66); and support members (a first rotary shaft member 68 and a second rotary shaft member 69). The opening/closing members (the first opening/closing member 65 and the second opening/closing member 66) are provided for each section 31 in a flow passage on which suction flows 82 and 82 generated by at least one of the section blower 32 and the main blower act. The support members openably/closably support the opening/closing members so that an opening/closing state of the flow passage is changed by a pressure difference between pressure on the upstream side of the opening/closing members and pressure on the downstream side.SELECTED DRAWING: Figure 3

Description

  The present invention mainly relates to a yarn winding machine having a configuration for removing fluff and yarn waste.

  Since fiber machines such as a yarn winding machine process fiber bundles and / or yarns, unnecessary fluff and yarn waste (removed substances) are generated with operation. If this removed substance is left unattended, the removed substance adheres to the package or the like and the quality of the package is lowered, or the textile machine itself becomes defective. For this reason, conventionally, a textile machine that can remove a removed substance by suction by applying a suction flow to an appropriate portion is known. Patent documents 1 and 2 disclose this kind of textile machine.

  Patent Document 1 discloses a textile machine including a section duct and a section blower provided for each predetermined number of spinning units, and a main duct and a main blower that collectively convey fluff collected in the section duct. . A filter member is disposed between the section blower and the section duct. A blocking member capable of blocking the flow path is provided between the filter member and the section blower. By blocking the flow path with the blocking member, the fluff accumulated on the filter member can be conveyed to the main duct by the suction flow of the main blower. In Patent Document 1, as a method for operating the blocking member, a method by an operator's operation and a method automatically performed according to the situation (amount of accumulated cotton or time) are described.

  Patent Document 2 discloses an apparatus including a plurality of pneumatic boxes for collecting fluff and a cotton collecting machine for collecting fluff collected in a plurality of pneumatic boxes. The pneumatic box and the cotton collecting machine are connected by a main duct. Between the pneumatic box and the main duct, an automatic opening / closing valve body capable of opening and closing the flow path is disposed. The automatic opening / closing valve body normally closes the flow path. By stopping the operation of the suction fan of the pneumatic box while the blower of the main duct is operated, the automatic opening / closing valve body opens the flow path under the influence of the pressure difference, and connects the pneumatic box and the main duct. Patent Document 2 describes that when a plurality of pneumatic boxes and a main duct are connected at the same time, it is not possible to collect fluff with a single cotton collecting machine.

JP 2012-132112 A JP-A 61-26381

  In Patent Document 1, when the blocking member is operated by an operator's operation, the work amount of the worker increases. Even when the shut-off member is automatically operated, a driving source for operating the shut-off member and a sensor for detecting the accumulation amount of the fluff and the like are necessary, which increases costs.

  Patent document 2 is not the structure which connects a several pneumatic box and a main duct simultaneously.

  A main object of the present invention is to provide a configuration capable of removing fluff accumulated on a filter member in a yarn winding machine connecting a plurality of section ducts and a main duct.

Means and effects for solving the problems

  According to an aspect of the present invention, a yarn winding machine includes a plurality of winding units, a plurality of section ducts, a section suction device, a filter member, a main duct, a main suction device, an opening / closing member, and the support. A member. The removed material generated in at least one of the winding units flows through each of the plurality of section ducts. The section suction device is provided for each section duct, and generates a suction flow in the section duct to move the removal substance from the winding unit. The filter member is disposed between the section duct and the section suction device. The main duct is connected to the plurality of section ducts, and the removal material flows from the plurality of section ducts. The main suction device generates a suction flow in the main duct for moving the removed substance from the section duct. The opening / closing member is provided for each section duct in a flow path on which a suction flow generated by at least one of the section suction device and the main suction device acts. The support member supports the opening / closing member so that the opening / closing state of the flow path is changed by a pressure difference between an upstream pressure and a downstream pressure of the opening / closing member in a suction flow direction. .

  Thereby, in the yarn winding machine in which the plurality of section suction devices and the main suction device are connected, the removed substance deposited on the filter member can be automatically removed by the pressure difference in the flow path.

  In the yarn winding machine, the opening / closing member is a first opening / closing member that changes an opening / closing state of a first connection opening between the section duct and the main duct.

  Thereby, the open / closed state of the section duct and the main duct can be changed.

  In the yarn winding machine, the main duct includes a main duct opening formed at a position closer to the main suction device than the first connection opening, and a duct opening opening / closing member that changes an opening / closing state of the main duct opening. And are provided. In the state where the section suction device generates a suction flow, when the main duct opening is opened by the duct opening opening / closing member, the first opening / closing member closes the first connection opening.

  Thereby, when the main duct opening is opened, the pressure in the main duct (downstream of the first connection opening) rises and the pressure difference changes, whereby the first connection opening is closed. As a result, since the suction flow generated by the section suction device can be effectively used, for example, the operation of the winding unit can be continued even when the section duct and the main duct are not connected.

  In the yarn winding machine, when the section suction device generates a suction flow and the first opening and closing member closes the first connection opening, the duct opening and closing member opens the main duct opening. When is closed, the first opening / closing member opens the first connection opening.

  Thereby, the pressure in the main duct is lowered and the pressure difference is changed by closing the main duct opening, so that the first connection opening is opened. Therefore, the first connection opening is automatically opened at the timing when the suction force in the main duct is increased, and the suction flow generated by the main suction device can be used.

  In the yarn winding machine, when the operation of the main suction device is stopped in a state in which the section suction device and the main suction device generate a suction flow, the first opening and closing member opens the first connection opening. Close.

  Thereby, when the operation of the main suction device stops, the pressure in the main duct rises and the pressure difference changes, whereby the first connection opening is closed. Therefore, the first connection opening is automatically closed at the timing when the suction force in the main duct is reduced, and the suction flow generated by the section suction device can be effectively utilized. As a result, even when the section duct and the main duct are not connected, for example, the operation of the winding unit can be continued.

  In the yarn winding machine, when the operation of the main suction device is started in a state where the section suction device generates a suction flow and the operation of the main suction device is stopped, One opening / closing member opens the first connection opening.

  As a result, when the operation of the main suction device starts, the pressure in the main duct decreases and the pressure difference changes, so the first connection opening is opened. Therefore, the first connection opening is automatically opened at the timing when the suction force in the main duct is increased, and the suction flow generated by the main suction device can be used.

  The yarn winding machine includes an auxiliary opening / closing member that changes an opening / closing state of the first connection opening independently of the first opening / closing member. The auxiliary opening / closing member maintains the open / closed state of the first connection opening even if a pressure difference between the upstream pressure and the downstream pressure of the auxiliary opening / closing member occurs in the suction flow direction.

  Thereby, since the 1st connection opening can be kept closed at the time of maintenance etc., maintenance can be performed for every section.

  In the yarn winding machine, the opening / closing member is a second opening / closing member that changes an opening / closing state of a second connection opening between the filter member and the section suction device.

  Thereby, the open / close state between the filter member and the section suction device can be changed by the pressure difference between the two regions sandwiching the filter member.

  In the yarn winding machine, when the rotational speed of the blades of the section suction device is reduced, the second opening / closing member closes the second connection opening.

  Thereby, since the rotational speed of the blade | wing of a section suction device falls, the downstream pressure rises rather than a filter member, and since a pressure difference changes, a 2nd connection opening is closed. By closing the second connection opening, the removed substance does not attract to the filter member, and therefore the removed substance can be removed by the suction flow generated by the main suction device.

  In the yarn winding machine, when the rotational speed of the blades of the section suction device is increased, the second opening / closing member opens the second connection opening.

  Thereby, since the rotational speed of the blade | wing of a section suction device rises, the downstream pressure rather than a filter member falls and a pressure difference changes, Therefore A 2nd connection opening is open | released. Therefore, the suction flow can be utilized by opening the second connection opening at the timing when the suction force in the section duct is increased.

  The yarn winding machine further includes a discharge duct provided for each of the plurality of section ducts and having a discharge port through which a suction flow passing through the filter member passes and is discharged to the outside. The filter member is provided between the section duct and the discharge duct. The section suction device is provided between the filter member and the discharge port in the discharge duct.

  Thereby, the suction flow generated by the section suction device can be more efficiently applied to the section duct.

The front view of the spinning machine which concerns on one Embodiment of this invention. The longitudinal cross-sectional view of a spinning machine. Front sectional drawing which shows the structure of a fluff removal part. The expanded sectional view which shows the mode of the fluff removal part of the state (normal state) which operated the section blower and the main blower. The expanded sectional view which shows the mode of the fluff removal part of the state which operated the section blower and stopped the operation of the main blower. The expanded sectional view which shows the mode of the fluff removal part of a state which operated the section blower and the main blower, and the fluff accumulated on the filter member in large quantities. The expanded sectional view which shows the mode of the fluff removal part of the state which stopped the operation of a section blower, continuing the operation | movement of a main blower, and removing the fluff deposited on the filter member. The enlarged view of the fluff removal part which shows the state which closed the 1st connection opening with the slide opening / closing member.

  Next, a spinning machine (yarn winding machine) according to an embodiment of the present invention will be described with reference to the drawings. A spinning machine 1 as a yarn winding machine shown in FIG. 1 includes a large number of spinning units (winding units) 2 arranged side by side, a yarn splicing cart 3, a blower box 4, and a prime mover box 5. .

  As shown in FIG. 1, each spinning unit 2 includes a draft device 7, a spinning device 9, a fluff removing unit 30, a yarn accumulating device 12, and a winding device arranged in order from upstream to downstream. 13. In the description of FIGS. 1 and 2, “upstream” and “downstream” mean upstream and downstream in the traveling (conveying) direction of the sliver 15, fiber bundle 8 and spun yarn 10 during spinning.

  The draft device 7 is provided in the vicinity of the upper end of the frame 6 provided in the spinning machine 1. The draft device 7 includes four roller pairs of a back roller pair 16, a third roller pair 17, a middle roller pair 19, and a front roller pair 20 in order from the upstream side. In the middle roller pair 19, an apron belt 18 is provided for each roller. The draft device 7 drafts the sliver 15 supplied from a sliver case (not shown) until it reaches a predetermined thickness. The fiber bundle 8 drafted by the draft device 7 is supplied to the spinning device 9.

  The spinning device 9 includes a swirl flow generation chamber (not shown) into which the fiber bundle 8 can be inserted. The spinning device 9 generates a swirl flow in the swirl flow generation chamber by injecting compressed air from a nozzle (not shown) into the swirl flow generation chamber. The spinning device 9 generates a spun yarn 10 by twisting the fiber bundle 8 by a swirling flow.

  In the spinning device 9, fibers (cotton) that are not twisted into the spun yarn 10 during spinning are generated. The fluff is conveyed to a cotton collection box (not shown) via a suction pipe 91, a section duct 31, and a main duct 37 provided in the fluff removing unit 30. Thereby, since the fluff does not stay in the swirl flow generating chamber, the generation of swirl flow is not hindered. The detailed configuration of the fluff removing unit 30 will be described later.

  A yarn accumulating device 12 is provided downstream of the spinning device 9. As shown in FIG. 2, the yarn storage device 12 includes a yarn storage roller 21 and a motor 25 that rotationally drives the yarn storage roller 21.

  The yarn storage roller 21 winds a certain amount of spun yarn 10 around its outer peripheral surface and temporarily stores it. The yarn accumulating roller 21 rotates at a predetermined rotational speed with the spun yarn 10 wound around the outer peripheral surface, thereby pulling the spun yarn 10 from the spinning device 9 at a predetermined speed and transporting it downstream. Since the yarn storage device 12 can temporarily store the spun yarn 10 on the outer peripheral surface of the yarn storage roller 21, it functions as a kind of buffer. As a result, the problem that the spinning speed in the spinning device 9 and the winding speed (speed of the spun yarn 10 wound on the package 45) do not match for some reason (for example, slack of the spun yarn 10) can be eliminated. it can.

  The upstream guide 23 is disposed slightly upstream of the yarn accumulating roller 21. The upstream guide 23 guides the spun yarn 10 to the outer peripheral surface of the yarn accumulating roller 21.

  A yarn clearer 52 is provided between the spinning device 9 and the yarn storage device 12. The spun yarn 10 generated by the spinning device 9 passes through the yarn clearer 52 before being taken up by the yarn accumulating device 12. The yarn clearer 52 monitors the thickness of the traveling spun yarn 10. When the yarn clearer 52 detects a yarn defect of the spun yarn 10, it transmits a yarn defect detection signal to a unit controller (not shown).

  When the unit controller receives the yarn defect detection signal from the yarn clearer 52, the unit controller stops driving the spinning device 9, cuts the spun yarn 10, and stops winding by the winding device 13. The unit controller sends a control signal to the yarn splicing cart 3 to cause the yarn splicing cart 3 to travel to the spinning unit 2. Thereafter, the unit controller drives the spinning device 9 again after the completion of the yarn splicing by the yarn splicing carriage 3, and resumes the winding by the winding device 13.

  As illustrated in FIGS. 1 and 2, the yarn joining cart 3 includes a yarn joining device 43, a suction pipe 44, and a suction mouth 46. When a yarn breakage or a yarn cut occurs in the spinning unit 2, the yarn joining cart 3 travels on the rail 41 and stops at a work position with respect to the spinning unit 2. The suction pipe 44 rotates upward about the shaft, captures the spun yarn 10 delivered from the spinning device 9, and rotates downward about the shaft to thereby spun the spun yarn 10 together. Guide to device 43. The suction mouse 46 rotates downward about the shaft, captures the spun yarn 10 from the package 45, and guides the spun yarn 10 to the yarn joining device 43 by rotating upward about the shaft. To do. The yarn joining device 43 performs yarn joining between the guided spun yarns 10.

  The winding device 13 includes a cradle arm 71, a winding drum 72, and a traverse device 75. The cradle arm 71 is swingably supported around the support 70 and can rotatably support the bobbin 48 for winding the spun yarn 10. The winding drum 72 rotates in contact with the outer peripheral surface of the bobbin 48 or the package 45. The traverse device 75 includes a traverse guide 76 that can guide the spun yarn 10. The winding device 13 drives the winding drum 72 by an electric motor (not shown) while reciprocating the traverse guide 76 by a driving means (not shown). Accordingly, the spun yarn 10 is wound around the package 45 while traversing the spun yarn 10.

  Next, the configuration of the fluff removing unit 30 will be described with reference to FIG. In describing the fluff removal unit 30, “upstream” and “downstream” mean upstream and downstream in the direction in which the suction flows 82 and 83 flow.

  The fluff removing unit 30 includes a section duct 31, a section blower (section suction device) 32, a filter member 33, a main duct 37, and a main blower (main suction device) 38 (FIG. 1).

  In the spinning machine 1 of the present embodiment, a suction pipe 91 shown in FIG. 2 is arranged for each spinning unit 2. The section duct 31 is connected to the downstream side of the suction pipe 91. As shown in FIG. 3, a predetermined number (20 in this embodiment) of suction pipes 91 of the spinning unit 2 are connected to one section duct 31. In the present embodiment, since one suction pipe 91 is arranged for one spinning unit 2, 20 suction pipes 91 are connected to one section duct 31. The fluff removing unit 30 includes a plurality of such section ducts 31. The downstream side of the section duct 31 is connected to the main duct 37 and the discharge duct 34. A portion connecting the section duct 31 and the main duct 37 is a first connection opening 61. A portion connecting the section duct 31 and the discharge duct 34 is a second connection opening 62. In the state where the first connection opening 61 is opened, the suction flow generated by the main blower 38 also acts in the section duct 31.

  The section blower 32 is disposed inside the discharge duct 34 and in the vicinity of the filter member 33. The second connection opening 62 is an opening provided between the section duct 31 and the section blower 32. By operating the section blower 32, the section duct 31 can be in a negative pressure state. The section blower 32 includes a blade 32a that generates a suction flow by rotating, and a section blower drive unit 32b that drives the blade 32a. The section blower drive unit 32b is an electric motor. The operation of the section blower drive unit 32 b is controlled by the section blower control unit 39. The section blower control unit 39 may be provided in a control device that performs overall control of the spinning machine 1 or may be provided for each section. A section is a collection of a predetermined number of spinning units 2. The number of spinning units 2 in each section may be the same or different. Accordingly, the number of suction pipes 91 and the number of spinning units 2 connected to the section duct 31 may be the same for all the section ducts 31 or may be different for each section duct 31.

  As shown in FIG. 3, the filter member 33 is disposed between the section duct 31 and the discharge duct 34. The filter member 33 is configured in a net shape. The mesh of the filter member 33 is configured so that the removal substance 81 does not pass and air (a suction flow 82 described later) can pass.

  A second opening / closing member (opening / closing member) 66 is disposed between the filter member 33 and the section blower 32. The second opening / closing member 66 is composed of two rectangular plate-like members. One end of each plate member is supported by a second rotation shaft member (support member) 69 so as to be rotatable (openable and closable). The support member is not limited to the shaft member, and may be a hinge or the like provided on the inner wall of the discharge duct 34. With this configuration, the second opening / closing member 66 can change the open / closed state (open state or closed state) of the second connection opening 62. The position of the second opening / closing member 66 when the second connection opening 62 is in the open state is the open position, and the position of the second opening / closing member 66 when the second connection opening 62 is in the closed state is the closed position. In the present embodiment, the urging member or the like is not attached to the second opening / closing member 66. Therefore, the second opening / closing member 66 opens and closes under the influence of the pressure difference in the section duct 31 and the discharge duct 34 (in other words, the pressure difference between the upstream side and the downstream side of the second opening / closing member 66) (details are given below). Later). A biasing member may be provided to the second opening / closing member 66 so that the second opening / closing member 66 is biased to the open position or the closed position when no force is applied to the second opening / closing member 66. The shape of the second opening / closing member 66 may be any shape, and may be changed according to the shape of the filter member 33.

  The section blower 32 can suck air on the section duct 31 side through the filter member 33 and generate a suction flow 82 in the section duct 31 and the suction pipe 91. The suction flow 82 is mainly used to move the removed substance 81 generated in the spinning device 9 to the vicinity of the downstream end portion of the section duct 31 through the suction pipe 91. The section blower 32 may be a suction device other than the blower as long as it can generate a suction flow in the section duct 31.

  A part of the suction flow 82 is discharged to the outside of the spinning machine 1 through the discharge port 34 a of the discharge duct 34. The remaining suction flow 82 passes through the first connection opening 61 and flows to the main duct 37 together with the removed substance 81. A first opening / closing member (opening / closing member) 65 and a slide opening / closing member (auxiliary opening / closing member) 67 are arranged between the section duct 31 and the main duct 37.

  The first opening / closing member 65 is disposed in the vicinity of the first connection opening 61. The first opening / closing member 65 is a rectangular plate-like member, and can be rotated (openable / closable) by a first rotating shaft member (support member) 68 at one end (upstream end in the direction in which the suction flow 83 flows). ) Is supported. The support member is not limited to the shaft member, and may be a hinge or the like provided on the inner wall of the main duct 37. In the present embodiment, a biasing member or the like is not attached to the first opening / closing member 65. Accordingly, the first opening / closing member 65 opens and closes under the influence of the pressure difference between the section duct 31 and the main duct 37 (in other words, the pressure difference between the upstream side and the downstream side of the first opening / closing member 65) (details are given below). Later). When the first opening / closing member 65 is opened / closed, the first connection opening 61 is opened / closed, the first opening / closing member 65 is located at the closed position, and the first connection opening 61 is closed; It is possible to switch to an open state in which 65 is located at the open position and the first connection opening 61 is open. A biasing member that biases the first opening / closing member 65 to the open position or the closed position when no force is applied to the first opening / closing member 65 may be provided. The shape of the first opening / closing member 65 may be any shape, and may be changed according to the shape of the first connection opening 61.

  The slide opening / closing member 67 is disposed in the vicinity of the first connection opening 61. The slide opening / closing member 67 is a rectangular plate-like member, and is slidable along the longitudinal direction of the main duct 37 by the power of a driving source (not shown) that operates according to an instruction from an operator or the like. When the slide opening / closing member 67 is slid, the slide opening / closing member 67 is positioned at the closed position and the first connection opening 61 is closed, and the slide opening / closing member 67 is positioned at the open position. It is possible to switch between an open state in which 61 is open. Instead of the configuration including the above-described drive source, an operation unit may be provided on the slide opening / closing member 67, and the slide opening / closing member 67 may be slidable when the operator operates the operation unit. In this case, the operation unit may be a part of the slide opening / closing member 67, or may be a member provided separately from the slide opening / closing member 67.

  A main blower 38 is disposed in the blower box 4 in the vicinity of one end of the main duct 37 (FIG. 1). By operating the main blower 38 and setting the downstream side of the main duct 37 to a negative pressure, a suction flow 83 is generated in the main duct 37. The main blower 38 may be a suction device other than the blower as long as it can generate a suction flow in the main duct 37. Basically, the main blower 38 is always operated (during the winding of the spun yarn 10). The removal substance 81 is caused to flow along the main duct 37 to the cotton collection box by the suction flow 83. A main duct opening is formed in the main duct 37. As shown in FIG. 1, the blower box 4 is provided with an open / close door 4a for changing the open / close state of the main duct opening. The operator opens the open / close door (main duct opening / closing member) 4a at a predetermined timing (opens the main duct opening), and removes the fluff collected in the cotton collection box. Since the suction flow 83 generated by the main blower 38 leaks to the outside by opening the opening / closing door 4a, the pressure in the main duct 37 increases (approaches atmospheric pressure), and the suction force of the main blower 38 decreases. . The positions of the main duct opening and the opening / closing door 4a are arbitrary, and may be formed on the upstream side of the blower box 4 as long as they are formed at a position closer to the main blower 38 than the first connection opening 61.

  In this embodiment, the fluff removal unit 30 is configured so that the flow rate of the suction flow 82 discharged through the discharge duct 34 is larger than the flow rate of the suction flow 82 introduced into the main duct 37. Thereby, the flow rate of the suction flow 83 sucked by the main blower 38 can be reduced, so that the power consumption of the main blower 38 can be reduced. However, the flow rate of the suction flow 82 discharged through the discharge duct 34 may be smaller than the flow rate of the suction flow 82 introduced into the main duct 37.

  As described above, in this embodiment, the removal substance 81 is sucked and removed by both the suction flow 82 and the suction flow 83. Therefore, the first connection opening 61 is basically open in all sections. . Therefore, the process of moving the removal substance 81 from the section duct 31 to the main duct 37 can be performed simultaneously in a plurality of sections.

  Next, the opening / closing of the first opening / closing member 65, the second opening / closing member 66, and the slide opening / closing member 67 will be described with reference to FIGS.

  FIG. 4 shows a state of the fluff removing unit 30 in a state where the winding of the spun yarn 10 is being executed (normal state). Under normal conditions, the section blower 32 and the main blower 38 are in operation. By operating the section blower 32, the pressure in the discharge duct 34 (more specifically, the area between the filter member 33 and the section blower 32 in the discharge duct 34) is lower than in the section duct 31. Therefore, the second opening / closing member 66 is arranged at the open position under the influence of the pressure difference. Thereby, the suction flow 82 can be generated in the section duct 31.

  By operating the main blower 38, the pressure in the main duct 37 decreases (a suction flow 83 is generated in the main duct 37). Since the pressure in the main duct 37 is smaller than the pressure in the section duct 31, the first opening / closing member 65 is arranged at the open position under the influence of this pressure difference. As a result, the first connection opening 61 is opened, and the suction flow 83 generated by the main blower 38 can also be generated in the section duct 31.

  As described above, in the normal state, the first connection opening 61 and the first opening / closing member 65 are automatically arranged at the open position under the influence of the pressure difference, so that the suction flow 82 generated by the section blower 32 and The removal substance 81 can be sucked and collected in the blower box 4 by the suction flow 83 generated by the main blower 38.

  Next, the case where the operation of the main blower 38 is stopped while the operation of the section blower 32 is continued from the normal state will be described with reference to FIG. The case where the operation of the main blower 38 is stopped is a case where maintenance of the main blower 38 is performed or a case where the main blower 38 breaks down.

  Since the operation of the section blower 32 continues, as shown in FIG. 5, the second opening / closing member 66 remains in the open position. On the other hand, when the operation of the main blower 38 is stopped, the pressure in the main duct 37 increases (the suction flow 83 is not generated). Therefore, the pressure in the main duct 37 becomes larger than the pressure in the section duct 31 (the relationship between the pressure differences is reversed), and the first opening / closing member 65 is switched to the closed position. As a result, the first connection opening 61 is closed.

  Since the suction flow 83 does not exist when the operation of the main blower 38 is stopped, the suction flow 82 can be effectively applied to the section duct 31 by switching the first connection opening 61 to the closed state. In this way, by configuring the first opening / closing member 65 so as to be openable / closable by a pressure difference, even if the operation of the main blower 38 is stopped, the reduction of the suction force in the section duct 31 is automatically minimized. Can do.

  In the above description, it is assumed that the operation of the main blower 38 is completely stopped. However, even when the operation of the main blower 38 is not completely stopped, the first opening / closing member 65 is switched to the closed state when the suction force in the main duct 37 becomes lower than a predetermined level. For example, when the operator opens the opening / closing door 4a in order to remove the fluff collected in the blower box 4, the first opening / closing member 65 may be switched to the closed state.

  When the maintenance or the like is completed and the operation of the main blower 38 is resumed, the pressure difference between the section duct 31 and the main duct 37 is restored, so that the first opening / closing member 65 can be moved to the open position. In this way, by configuring the first opening / closing member 65 to be openable / closable with a pressure difference, it is possible to suppress a decrease in suction force during maintenance of the main blower 38 without using a drive source. Similarly, when the opening / closing door 4a is closed after being opened, the pressure difference between the section duct 31 and the main duct 37 is restored, so that the first opening / closing member 65 can be moved to the open position.

  Next, a case where the operation of the section blower 32 is stopped while continuing the operation of the main blower 38 from the normal state will be described with reference to FIGS. 6 and 7.

  In the section duct 31, a part of the suction flow 82 flows on the filter member 33 in a direction perpendicular to the filter member 33 (on the side of the section blower 32), so that the removal substance 81 exerts a force to be pressed against the filter member 33. receive. Therefore, the removal substance 81 is easily caught on the filter member 33, and the removal substance 81 is easily deposited on the filter member 33. As a result, if the operation of the section blower 32 is continued in the normal state, the removed substance 81 may accumulate on the filter member 33 as shown in FIG.

  In order to remove the deposited removal substance 81, the operation of the section blower 32 is temporarily stopped in this embodiment. The same effect can be obtained if the rotational speed of the blade 32a is set to a predetermined speed or less without completely stopping the operation of the section blower 32. By stopping the operation of the section blower 32, the pressure in the section duct 31 is changed within the discharge duct 34 (more specifically, between the filter member 33 and the section blower 32 (blade 32a) in the discharge duct 34). The second opening / closing member 66 moves to the closed position. As a result, the second connection opening 62 is switched to the closed state.

  By switching the second connection opening 62 to the closed state, the force for pressing the removal substance 81 against the filter member 33 does not work. Since the suction flow 83 generated by the main blower 38 also acts in the section duct 31, the removal substance 81 can be moved to the main duct 37 by the suction flow 83 (see FIG. 7). Thus, the removal substance 81 deposited on the filter member 33 can be effectively removed by stopping the operation of the section blower 32 or reducing the rotational speed of the blade 32a.

  After removing the removal substance 81 deposited on the filter member 33, the rotational speed of the blade 32a of the section blower 32 is increased to increase the rotational speed of the section duct 31 and the discharge duct 34 (more specifically, the discharge duct 34). Among them, since the pressure difference in the region between the filter member 33 and the section blower 32 is restored, the second opening / closing member 66 can be moved to the open position. In this way, by configuring the second opening / closing member 66 so as to be opened / closed by a pressure difference, the removal substance 81 deposited on the filter member 33 can be removed without using a drive source.

  Since the removed substance 81 may accumulate on the filter member 33 by generating and / or winding the spun yarn 10, the operation of the section blower 32 is stopped or the rotational speed of the blade 32a is decreased. The processing is preferably performed at a predetermined timing. This timing may be determined every predetermined time or may be determined according to a detection result of a pressure sensor (not shown). When using a pressure sensor, you may install a pressure sensor between the filter member 33 and the section blower 32, for example. In this case, the negative pressure in the discharge duct 34 (more specifically, the area between the filter member 33 and the section blower 32 in the discharge duct 34) increases as the removal substance 81 accumulates. The accumulated amount of the removal substance 81 can be estimated based on the pressure value. A pressure sensor may be installed in the section duct 31 and / or in the suction pipe 91. In this case, the pressure to be detected increases with the deposition of the removal substance 81 (in other words, the negative pressure becomes weak), and therefore the deposition amount of the removal substance 81 can be estimated based on the detected pressure value.

  Next, with reference to FIG. 8, the case where the slide opening / closing member 67 is operated will be described with reference to FIG.

  The first opening / closing member 65 opens and closes under the influence of the pressure difference. For example, when the section duct 31 or the discharge duct 34 (section blower 32) is removed, the first opening / closing member 65 moves to the open position and opens. Maintained in position. In this case, the suction force in the main duct 37 is weakened.

  When removing the section duct 31 or the discharge duct 34 or the like, the slide opening / closing member 67 is first moved to the closed position in order to avoid a decrease in the suction force in the main duct 37 as described above. Since the position of the slide opening / closing member 67 is switched by the operating force of the operator or the driving source, the slide opening / closing member 67 is maintained in the closed position even if a pressure difference that causes the first opening / closing member 65 to move to the open position is generated ( The open / closed state of the first connection opening 61 is maintained). Therefore, even when the section duct 31 or the discharge duct 34 is removed, the suction force in the main duct 37 does not become weak. As a result, maintenance of the section duct 31 or the discharge duct 34 can be performed while 10 spinnings are generated and / or wound.

  The present embodiment relates to a configuration including a slide opening / closing member 67 in addition to the first opening / closing member 65. Instead of this configuration, a mechanism for locking the first opening / closing member 65 at least in the closed position may be provided. By locking the first opening / closing member 65 in the closed position, maintenance of the section duct 31 or the discharge duct 34 is performed for each section while the spun yarn 10 is generated and / or wound even without the slide opening / closing member 67. Can be done. You may provide the switching part which switches the open / close state of the slide open / close member 67 of a some section all at once.

  As described above, the spinning machine 1 includes a plurality of spinning units 2, a plurality of section ducts 31, a plurality of section blowers 32, a plurality of filter members 33, a main duct 37, a main blower 38, At least one opening / closing member (first opening / closing member 65 and second opening / closing member 66) and a support member (first rotation shaft member 68 and second rotation shaft member 69) are provided. Each of the plurality of section ducts 31 is arranged for each at least one spinning unit 2, and the removed substance 81 generated in the spinning unit 2 flows through the section duct 31. The section blower 32 is provided for each section duct 31, and a suction flow 82 is generated in the section duct 31 to move the removal substance 81. The filter member 33 is disposed between the section duct 31 and the section blower 32. The main duct 37 is connected to the plurality of section ducts 31, and the suction flow 82 and the removal substance 81 from the plurality of section ducts 31 flow into the main duct 37. The main blower 38 generates a suction flow 83 for moving the removed substance 81 in the main duct 37. The opening / closing member is provided for each section duct 31 in a flow path on which the suction flow 82 generated by the section blower 32 and / or 82 generated by the main blower 38 acts. The support member supports the open / close member so that the open / close state of the flow path is changed by a pressure difference between the upstream pressure and the downstream pressure of the open / close member.

  As a result, in the spinning machine 1 in which the plurality of section blowers 32 and the main blower 38 are simultaneously connected, the removal substance 81 accumulated on the filter member 33 is driven by the pressure difference in the flow path (that is, the open / close member is driven). (Without using a driving source or the like).

  In the spinning machine 1, the main duct 37 is provided with a main duct opening formed at a position closer to the main blower 38 than the first connection opening 61, and an opening / closing door 4a for changing the open / closed state of the main duct opening. Yes. When the main duct opening is opened while the section blower 32 generates the suction flow 82, the first opening / closing member 65 closes the first connection opening 61 under the influence of the pressure difference.

  Thereby, when the main duct opening is opened, the pressure in the main duct 37 rises and the pressure difference changes, whereby the first connection opening 61 is closed. As a result, since the suction flow 82 generated by the section blower 32 can be effectively used, for example, the operation of the spinning unit 2 can be continued even when the section duct 31 and the main duct 37 are not connected. it can.

  In the spinning machine 1, the main duct opening is closed by the opening / closing door 4a in a state where the section blower 32 generates the suction flow 82 and the first opening / closing member 65 closes the first connection opening 61. In this case, the first opening / closing member 65 opens the first connection opening 61 under the influence of the pressure difference.

  Thereby, the pressure in the main duct 37 is lowered and the pressure difference is changed by closing the main duct opening, whereby the first connection opening 61 is opened. Thus, the first connection opening 61 is automatically opened at the timing when the suction force in the main duct 37 is increased, and the suction flow 83 generated by the main blower 38 can be used.

  In the spinning machine 1, when the operation of the main blower 38 is stopped in a state where the section blower 32 generates the suction flow 82 and the main blower 38 generates the suction flow 83, the first opening / closing member 65 closes the first connection opening 61 under the influence of the pressure difference.

  Thereby, the first connection opening 61 is automatically closed at the timing when the suction force in the main duct 37 is reduced, and the suction flow 82 generated by the section blower 32 can be effectively utilized.

  In the spinning machine 1, when the operation of the main blower 38 is started in a state where the section blower 32 generates the suction flow 82 and the operation of the main blower 38 is stopped, the first opening / closing member 65 is Under the influence of the pressure difference, the first connection opening 61 is opened.

  As a result, when the operation of the main blower 38 starts, the pressure in the main duct 37 decreases and the pressure difference changes, so the first connection opening 61 opens. Therefore, the first connection opening 61 is automatically opened at the timing when the suction force in the main duct 37 is increased, and the suction flow 83 generated by the main blower 38 can be used.

  In the spinning machine 1, when the rotational speed of the blade 32 a of the section blower 32 is reduced, the second opening / closing member 66 closes the second connection opening 62 under the influence of the pressure difference.

  Thereby, since the rotational speed of the blade | wing 32a of the section blower 32 falls, the downstream pressure rather than the filter member 33 rises, and a pressure difference changes, Therefore The 2nd connection opening 62 is closed. When the second connection opening 62 is closed, the removal substance 81 is not attracted to the filter member 33. Therefore, the removal substance 81 can be removed by the suction flow 83 generated by the main blower 38.

  In the spinning machine 1, when the rotational speed of the blade 32a of the section blower 32 is increased, the second opening / closing member 66 opens the second connection opening 62 under the influence of the pressure difference.

  As a result, the rotational speed of the blade 32a of the section blower 32 increases, so that the pressure on the downstream side of the filter member 33 decreases and the pressure difference changes, so the second connection opening 62 is opened. Therefore, the suction flow 82 can be used by opening the second connection opening 62 at the timing when the suction force in the section duct 31 is increased.

  The spinning machine 1 includes a slide opening / closing member 67 that changes the opening / closing state of the first connection opening 61 independently of the first opening / closing member 65. The slide opening / closing member 67 maintains the opened / closed state of the first connection opening 61 even when a pressure difference between the upstream pressure and the downstream pressure occurs.

  Thereby, since the 1st connection opening 61 can be kept closed at the time of a maintenance etc., it can prevent that the suction flow 83 which the main blower 38 generated leaks. Therefore, maintenance can be performed for each section.

  The preferred embodiment of the present invention has been described above, but the above configuration can be modified as follows, for example.

  In the said embodiment, when the pressure in the main duct 37 was smaller than the pressure in the section duct 31, it demonstrated that the 1st opening / closing member 65 was located in an open position. However, when the first opening / closing member 65 receives a force such that the first opening / closing member 65 is positioned at the closed position by urging by the urging member or its own weight, the pressure in the main duct 37 is higher than the pressure in the section duct 31. In some cases, the first opening / closing member 65 may be located at the open position. Therefore, the magnitude relationship of the pressure explained in the above embodiment is an example. Similarly, not only when the first opening / closing member 65 is located at the open position, but also when the first opening / closing member 65 is located at the closed position, and when the second opening / closing member 66 is located at the open position or the closed position, The magnitude relationship of the pressure described in the above embodiment is an example.

  In the above-described embodiment, the first opening / closing member 65 is composed of one plate-like member, and the second opening / closing member 66 is composed of two plate-like members. This configuration is an example. The first opening / closing member 65 may be composed of two plate-like members. The second opening / closing member 66 may be composed of a single plate-like member. In the above embodiment, in the closed state, the first connection opening 61 and the second connection opening 62 are completely closed. However, even if there is a certain gap, the first connection opening 61 and the second connection opening 62 correspond to the “closed state”.

  Instead of setting the number of spinning units 2 connected to one section duct 31 to 20 units, 1 to 19 units or 21 units or more may be used.

  In the above embodiment, the first opening / closing member 65, the second opening / closing member 66, and the slide opening / closing member 67 are provided in all the sections. However, in at least one section, at least one of the three opening / closing members is provided. It does not have to be.

  The position and angle at which the filter member 33 is disposed are not particularly limited. In this embodiment, the filter member 33 is disposed so as to be inclined (specifically, closer to the first connection opening 61 as it goes downstream in the direction in which the suction flow flows). However, for example, in FIG. 3, the filter member 33 may be arranged so that the longitudinal direction of the filter member 33 coincides with the longitudinal direction of the section duct 31.

  In addition to the suction pipe 91, a suction pipe that sucks and conveys the fluff attached to the draft roller of the draft device 7 may be connected to the section duct 31. In the spinning unit 2, a suction port for sucking yarn waste or the like may be provided on the downstream side of the spinning device 9, and a suction pipe having the suction port may be connected to the section duct 31. Furthermore, in a precision machine equipped with a yarn splicing device for each spinning unit 2, a pipe that sucks and transports yarn waste generated at the time of yarn splicing may be connected to the section duct 31.

  The spinning unit 2 draws the spun yarn 10 from the spinning device 9 by the yarn accumulating device 12, but is not limited to this configuration. For example, the spinning unit may be configured to draw the spun yarn 10 from the spinning device 9 using a delivery roller and a nip roller, and then store the spun yarn 10 using a yarn storage device 12 or a slack tube provided on the downstream side. . In the case where the spun yarn 10 is drawn from the spinning device 9 by the delivery roller and the nip roller, the yarn accumulating device 12 can be omitted.

  The configuration of the present invention is not limited to the spinning machine as described above, and can be applied to, for example, an open-end spinning machine, an automatic winder, a twisting machine, and a spinning machine. When the configuration of the present invention is applied to, for example, an automatic winder, the present invention can be applied to the removal of yarn waste generated during yarn splicing.

1 Spinning machine (yarn winding machine)
2 Spinning unit (winding unit)
30 Cotton removal part 31 Section duct 32 Section blower (section suction device)
33 Filter member 37 Main duct 38 Main blower (main suction device)
61 1st connection opening 62 2nd connection opening 65 1st opening-closing member (opening-closing member)
66 Second opening / closing member (opening / closing member)
67 Slide opening / closing member (auxiliary opening / closing member)
68 First rotating shaft member (supporting member)
69 Second rotating shaft member (supporting member)

Claims (11)

A plurality of winding units;
A plurality of section ducts through which removed material generated in at least one of the winding units flows;
A section suction device that is provided for each section duct and generates a suction flow in the section duct to move the removal substance from the winding unit;
A filter member disposed between the section duct and the section suction device;
A main duct connected to the plurality of section ducts and into which the removal material flows from the plurality of section ducts;
A main suction device for generating a suction flow in the main duct for moving the removed substance from the section duct;
An opening / closing member provided for each section duct in a flow path on which a suction flow generated by at least one of the section suction device and the main suction device acts;
A support member that supports the openable / closable member in an openable / closable manner so that an open / closed state of the flow path changes depending on a pressure difference between an upstream pressure and a downstream pressure of the openable / closable member in the flow direction of the suction flow;
A yarn winding machine comprising: The yarn winding machine according to claim 1,
The yarn winding machine, wherein the opening / closing member is a first opening / closing member that changes an opening / closing state of a first connection opening between the section duct and the main duct. A yarn winding machine according to claim 2,
The main duct is provided with a main duct opening formed at a position closer to the main suction device than the first connection opening, and a duct opening opening / closing member that changes an opening / closing state of the main duct opening,
In a state where the section suction device generates a suction flow, when the main duct opening is opened by the duct opening opening / closing member, the first opening / closing member closes the first connection opening. Yarn winding machine. A yarn winding machine according to claim 3,
When the section suction device generates a suction flow and the first opening / closing member closes the first connection opening, and the main duct opening is closed by the duct opening opening / closing member. The yarn winding machine, wherein the first opening / closing member opens the first connection opening. A yarn winding machine according to any one of claims 2 to 4,
The first opening and closing member closes the first connection opening when the operation of the main suction device stops in a state where the section suction device and the main suction device generate a suction flow. Yarn winding machine. A yarn winding machine according to any one of claims 2 to 5,
When the operation of the main suction device is started in a state where the section suction device generates a suction flow and the operation of the main suction device is stopped, the first opening / closing member is the first opening / closing member. A yarn winding machine characterized by opening a connection opening. A yarn winding machine according to any one of claims 2 to 6,
An auxiliary opening / closing member that changes an opening / closing state of the first connection opening independently of the first opening / closing member;
The auxiliary opening / closing member maintains the open / closed state of the first connection opening even when a pressure difference between the upstream pressure and the downstream pressure of the auxiliary opening / closing member occurs in the flow direction of the suction flow. Characteristic yarn winding machine. A yarn winding machine according to any one of claims 1 to 7,
The yarn winding machine, wherein the opening / closing member is a second opening / closing member that changes an opening / closing state of a second connection opening between the filter member and the section suction device. The yarn winding machine according to claim 8,
When the rotational speed of the blades of the section suction device is reduced, the second opening / closing member closes the second connection opening. A yarn winding machine according to claim 9,
The yarn winding machine, wherein the second opening and closing member opens the second connection opening when the rotational speed of the blades of the section suction device is increased. A yarn winding machine according to any one of claims 1 to 10,
A discharge duct having a discharge port provided for each of the plurality of section ducts and having a suction flow passing through the filter member and discharged to the outside;
The filter member is provided between the section duct and the discharge duct,
The yarn winding machine, wherein the section suction device is provided between the filter member and the discharge port in the discharge duct.

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