JP2013067889A - Working truck and spinning machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a work truck and a spinning machine, enabling easy attaching/detaching operation of the work truck, and effective utilization of a space.SOLUTION: A yarn splicing truck 3 movable along an upper rail 41a and a lower rail 41b among a plurality of spinning units 2 comprises: an upper side guide roller pair 350 abutting against the upper rail 41a; a folding bracket 360 which switches a position of the upper side guide roller pair 350 to an abutting position abutting against the upper rail 41a and a spaced position spaced from the upper rail 41a; and a housing 300 having the folding bracket 360 attached thereto and moving along the rails 41a and 41b. The switching of the position of the upper side guide roller pair 350 by using the folding bracket 360 facilitates attachment/detachment of the yarn splicing truck 3 to/from the rails 41a and 41b, and allows the attachment/detachment of the yarn splicing truck 3 at any position to eliminate the need for a space for the attachment/detachment of the yarn splicing truck 3 in an end of the upper rail 41a and others.

Description

  The present invention relates to a work carriage and a spinning machine.

  Conventionally, a technique described in Patent Document 1 below is known as a technique in such a field. Patent Document 1 describes a spinning machine including a plurality of spinning units and a work carriage that moves between a plurality of spinning units to perform a yarn splicing operation. In this spinning machine, rails are installed along the direction in which the spinning units are arranged, and a guide roller that meshes with the rails is provided on the frame of the work carriage. By engaging a guide roller provided on the work carriage with the rail, the work carriage moves along the rail. When removing the work carriage from the rail, the work carriage is moved to the end of the rail in the extending direction, and the work carriage is removed from the end of the rail.

JP 2010-77577 A

  In the spinning machine described in Patent Document 1, when removing the work carriage from the rail, it is necessary to move the work carriage to the end of the rail. Moreover, when attaching a work trolley to a rail, it is necessary to attach a work trolley to a rail from the edge part of a rail. Thus, it is difficult to say that the work cart is easily attached to and detached from the rail. In addition, it is necessary to provide a space for attaching / detaching the work carriage at the end of the spinning machine, and it is difficult to say that the space can be used effectively. SUMMARY OF THE INVENTION An object of the present invention is to provide a work cart and a spinning machine that can easily attach and detach a work cart and can effectively use a space.

  The work cart according to the present invention is movable along a rail between a plurality of processing units. This work carriage is attached with a guide that contacts the rail, a guide switching unit that switches the guide to a contact position that contacts the rail, and a separation position that is spaced from the rail, and a guide switching unit that moves along the rail. And a main body portion.

  In this work carriage, the guide that abuts on the rail is switched between the abutment position that abuts on the rail and the separation position that is separated from the rail. Since the guide is separated from the rail by switching the guide to the separation position, the work carriage can be easily detached from the rail. In addition, when the work carriage is brought into the rail attachment position in the state where the guide is in the separated position and the guide is switched to the contact position, the work carriage can be easily attached to the rail. Since the work carriage can be attached and detached at any place on the rail, it is not necessary to provide a space for attaching and detaching the work carriage at the end position of the rail, and the space can be effectively used.

  The guide switching unit preferably switches the guide between the contact position and the separation position by tilting the guide. According to this configuration, the guide is switched between the contact position and the separation position by tilting the guide. In this way, the position of the guide can be easily switched.

  The guide switching unit preferably rotates the guide along a direction substantially parallel to the moving direction of the main body. According to this configuration, the guide is rotated along a direction substantially parallel to the moving direction of the main body. This prevents the guide from interfering with the rail and hinders the switching of the guide, so that the position of the guide can be easily switched.

  It is preferable that the work carriage further includes a fixing member that fixes the guide switching unit at the contact position. According to this configuration, the guide is fixed at the contact position by the fixing member. Accordingly, the position of the guide can be easily fixed at the contact position by the fixing member.

  The work carriage further includes a detection sensor that detects a detected point provided on the rail, and a sensor switching unit that switches the detection sensor to a detection position that detects the detected point and a separated position that is separated from the rail. It is preferable. According to this configuration, the position of the detection sensor is switched by the sensor switching unit. As a result, even when a detection sensor is provided, switching the position of the detection sensor prevents the detection sensor from interfering with the rail when the work carriage is attached or detached, making it easy to attach or remove the work carriage. Can be done.

  The work carriage further includes a detection sensor that detects a detected point provided on the rail. The guide switching unit preferably switches the detection sensor to the detection position for detecting the detected point and the separation position away from the rail together with the switching of the guide position. According to this configuration, the position of the detection sensor is switched by the guide switching unit. Thus, even when a detection sensor is provided, the position of the detection sensor is switched together with the guide, so that the detection sensor does not interfere with the rail when the work carriage is attached or detached, and the work carriage is attached or detached. Can be easily performed.

  The guide is preferably in contact with either the rail provided above the main body or the rail provided below the main body. According to this configuration, the position of the guide contacting the rail provided above the main body portion of the work cart or the rail provided below the main body portion of the work cart can be switched by the guide switching unit. .

  The guide is preferably composed of an upper guide that comes into contact with a rail provided above the main body, and a lower guide that comes into contact with a rail provided below the main body. According to this configuration, the upper guide abuts on the rail provided above the main body of the work carriage, and the lower guide abuts on the rail provided below the main body. Further, the upper guide and the lower guide are switched between the contact position and the separation position by the guide switching unit. In this manner, the work carriage can be removed from the rail by switching the upper guide and the lower guide to the separated positions. Further, by switching the lower guide to the separated position, the lower guide does not interfere with the rail, and the work carriage can be easily detached from the rail by simply lifting the work carriage.

  The guide is preferably a pair of rollers that sandwich the rail. According to this configuration, the work carriage can be moved along the rail without rattling by configuring the guide with the pair of rollers.

  The spinning device according to the present invention includes a plurality of processing units, the above-described work cart that can move between the plurality of processing units along the rail, and that can perform work on the plurality of processing units; It is characterized by providing. According to this configuration, in a spinning machine including a plurality of processing units and a work carriage that moves between the plurality of processing units, the work carriage can be easily attached to and detached from the rails provided in the spinning machine. In addition, since the work carriage can be attached and detached at any place on the rail, it is not necessary to provide a space for attaching and removing the work carriage at the end position of the rail, and the space can be used effectively. .

  Each of the plurality of processing units includes a yarn feeding device that supplies spun yarn and a winding device that winds the spun yarn supplied by the yarn feeding device to form a package. The work carriage is preferably provided with a yarn splicing device that joins the spun yarn supplied from the yarn feeding device and the spun yarn of the package when the continuous state of the spun yarn is divided in at least one processing unit. According to this configuration, the work carriage that performs splicing of the spun yarn supplied from the yarn supplying device can be easily attached to and detached from the rail.

  The yarn feeding device preferably includes a draft device that drafts a sliver into a fiber bundle, and an air spinning device that generates a spun yarn by spinning the fiber bundle drafted by the draft device with a swirling airflow. According to this configuration, it is possible to easily attach and detach the work carriage that performs splicing of the spun yarn generated by the yarn feeding device including the draft device and the pneumatic spinning device with respect to the rail.

  The spinning machine moves the work carriage with respect to the rail by switching the guide to the contact position and the separation position from the opposite side of the yarn path between the yarn feeding device and the winding device with respect to the main body. It is preferable to provide a machine base frame in which an opening that can be attached and detached is formed. According to this configuration, the spinning machine includes the machine base frame having the opening on the side opposite to the yarn path side of the spun yarn between the spinning device and the winding device. Thereby, the work carriage can be easily attached to and detached from the rail through the opening without interfering with the apparatus provided on the yarn path side, the spun yarn between the spinning apparatus and the winding apparatus, or the like. it can.

  According to the present invention, the work carriage can be easily attached and detached, and the space can be effectively used.

1 is a front view of a spinning machine according to an embodiment of the present invention. It is a longitudinal cross-sectional view of the spinning machine of FIG. It is the schematic which shows the longitudinal cross-section of the spinning machine of FIG. It is the figure which looked around the upper guide roller pair of FIG. 1 from the back side of the spinning machine. It is the figure which looked around the upper guide roller pair of FIG. 1 from the moving direction side of the yarn splicing carriage. It is the figure which looked around the upper guide roller pair of FIG. 1 from upper direction. It is a figure which shows the state which rotated the retractable member of FIG. 4 and switched the upper side guide roller pair to the separation position. It is the schematic which looked at the yarn splicing cart from the back side of the spinning machine of FIG. It is a figure which shows a mode that a yarn joining cart is lifted using an attachment / detachment apparatus.

  Hereinafter, embodiments of a work carriage and a spinning machine according to the present invention will be described in detail with reference to the drawings. In the present specification, “upstream” and “downstream” mean upstream and downstream in the traveling direction of the yarn during spinning. FIG. 1 is a front view showing the overall configuration of the spinning machine, and FIG. 2 is a longitudinal sectional view of the spinning machine.

  A spinning machine 1 shown in FIG. 1 includes a large number of spinning units (processing units) 2 arranged side by side. The spinning machine 1 includes a yarn joining cart (working cart) 3, a blower box 80, and a prime mover box 5. In the following description, the yarn path side of the spun yarn 10 with respect to the yarn joining cart 3 may be referred to as the front side of the spinning machine 1, and the opposite side may be referred to as the back side. An operator passage extending in the arrangement direction of the spinning units 2 is provided on the front side of the spinning machine 1. The worker can operate and monitor each spinning unit 2 from the worker passage side.

  As shown in FIG. 1, each spinning unit 2 includes, in order from upstream to downstream, a draft device (yarn feeding device) 7, an air spinning device (yarn feeding device) 9, a yarn storage device 12, and a waxing device. 14 and a winding device 13. The draft device 7 is provided in the vicinity of the upper end of the casing (machine frame) 6 of the spinning machine 1. The fiber bundle 8 sent from the draft device 7 is spun by the air spinning device 9. The spun yarn 10 delivered from the air spinning device 9 passes through the yarn clearer 52, and is further sent downward by the yarn accumulating device 12, and is given wax by the waxing device 14. Thereafter, the spun yarn 10 is wound up by the winding device 13, whereby a package 45 is formed.

  The draft device 7 is for drawing the sliver 15 into the fiber bundle 8. As shown in FIG. 2, the draft device 7 includes four roller pairs: a back roller pair 16, a third roller pair 17, a middle roller pair 19 on which an apron belt 18 is mounted, and a front roller pair 20. The bottom rollers of each of the roller pairs 16, 17, 19, and 20 are driven by power from the motor box 5 or a drive source (not shown) provided individually. The roller pairs 16, 17, 19, and 20 are driven at different rotational speeds. As a result, the sliver 15 supplied from the upstream side is drawn into the fiber bundle 8 and sent to the air spinning device 9 on the downstream side. be able to.

  The pneumatic spinning device 9 twists the fiber bundle 8 using a swirling airflow to generate a spun yarn 10. The pneumatic spinning device 9 includes a fiber guide portion, a swirl flow generating nozzle, and a hollow guide shaft body, although detailed description and illustration are omitted. The fiber guide unit guides the fiber bundle 8 sent from the draft device 7 to a spinning chamber formed inside the pneumatic spinning device 9. The swirl flow generating nozzle is disposed around the path of the fiber bundle 8 and generates a swirl flow in the spinning chamber. By this swirl flow, the fiber ends of the fiber bundles 8 in the spinning chamber are reversed and swirled. The hollow guide shaft body guides the spun yarn 10 from the spinning chamber to the outside of the pneumatic spinning device 9.

  A yarn accumulating device 12 is provided downstream of the pneumatic spinning device 9. The yarn accumulating device 12 retains the spun yarn 10 sent from the air spinning device 9 when a yarn is spliced by the yarn splicing carriage 3 and the function of applying a predetermined tension to the spun yarn 10 and pulling it out from the pneumatic spinning device 9. The function of preventing the slack of the spun yarn 10 and the function of adjusting the tension so that the fluctuation of the tension on the winding device 13 side is not transmitted to the pneumatic spinning device 9 side. As shown in FIG. 2, the yarn storage device 12 includes a yarn storage roller 21, a yarn hooking member 22, an upstream guide 23, an electric motor 25, a downstream guide 26, and a yarn storage amount sensor 27. I have.

  The yarn hooking member 22 is configured to be able to engage (hang) with the spun yarn 10, and rotates integrally with the yarn accumulating roller 21 while being engaged with the spun yarn 10, thereby the yarn accumulating roller 21. It is comprised so that the spun yarn 10 can be wound around the outer peripheral surface.

  The yarn accumulating roller 21 is configured to be able to wind and store a certain amount of the spun yarn 10 around its outer peripheral surface. The yarn accumulating roller 21 is rotationally driven by the electric motor 25. With this configuration, the spun yarn 10 wound around the outer periphery of the yarn accumulating roller 21 is wound so as to tighten the yarn accumulating roller 21 as the yarn accumulating roller 21 rotates, and is upstream of the yarn accumulating device 12. Pull the spun yarn 10. That is, by rotating the yarn storage roller 21 with the spun yarn 10 wound around the outer periphery at a predetermined rotation speed, a predetermined tension is applied to the spun yarn 10 and the spun yarn 9 is pulled out from the air spinning device 9 at a predetermined speed. It can be conveyed downstream at a speed.

  A predetermined contact area can be ensured between the yarn storage roller 21 and the spun yarn 10 by winding a predetermined amount of the spun yarn 10 around the outer periphery of the yarn storage roller 21. As a result, the yarn accumulating roller 21 can hold and pull the spun yarn 10 with a sufficient force, and the yarn accumulating device 12 can rotate the spun yarn 10 at a stable speed from the pneumatic spinning device 9 without causing a slip or the like. Can be pulled out.

  The yarn storage amount sensor 27 is configured to detect the storage amount of the spun yarn 10 stored on the yarn storage roller 21 in a non-contact manner and to transmit it to a unit controller (not shown).

  The upstream guide 23 is disposed slightly upstream of the yarn accumulating roller 21. The upstream guide 23 is a guide member that appropriately guides the spun yarn 10 with respect to the outer circumferential surface of the yarn accumulating roller 21, and the twist of the spun yarn 10 propagated from the pneumatic spinning device 9 is the upstream guide 23. It also serves as a twist-preventing member that prevents it from being transmitted downstream.

  A yarn clearer 52 is provided on the front side of the casing 6 of the spinning machine 1 and at a position between the pneumatic spinning device 9 and the yarn storage device 12. The spun yarn 10 spun by the pneumatic spinning device 9 passes through the yarn clearer 52 before being wound by the yarn accumulating device 12. The yarn clearer 52 is configured to monitor the thickness of the traveling spun yarn 10 and transmit a yarn defect detection signal to the unit controller when a yarn defect of the spun yarn 10 is detected.

  Upon receipt of the yarn defect detection signal, the unit controller immediately stops the ejection of compressed air from the swirling airflow generating nozzle of the pneumatic spinning device 9. As a result, the swirling airflow is stopped, the twisting of the fiber bundle 8 is stopped, and the introduction of the fiber bundle 8 into the pneumatic spinning device 9 is also stopped. And the continuous state of a fiber is parted in the air spinning device 9, and the spun yarn 10 is cut | disconnected. Thereafter, the unit controller further stops the draft device 7 and the like. Further, the unit controller sends a control signal to the yarn splicing carriage 3 so as to travel to the front of the spinning unit 2. Thereafter, the pneumatic spinning device 9 and the like are driven again to cause the yarn joining cart 3 to perform yarn joining and resume winding. At this time, the yarn accumulating device 12 sends the spun yarn 10 continuously sent from the air spinning device 9 to the yarn accumulating roller 21 until the winding is resumed after the air spinning device 9 resumes spinning. The slack of the spun yarn 10 is removed by allowing it to stay.

  As shown in FIGS. 1 and 2, the yarn joining cart 3 includes a splicer (yarn joining device) 43, a suction pipe 44, and a suction mouth 46. The yarn joining cart 3 is configured to travel to the spinning unit 2 along the upper rail 41a and the lower rail 41b and stop when a yarn break or yarn cut occurs in a spinning unit 2. The suction pipe 44 sucks and captures the yarn end fed from the pneumatic spinning device 9 and guides it to the splicer 43 while rotating in the vertical direction around the axis. The suction mouse 46 sucks the yarn end from the package 45 supported by the winding device 13 and guides it to the splicer 43 while rotating in the vertical direction about the axis. The splicer 43 performs splicing between the guided yarn ends.

  A waxing device 14 is provided downstream of the yarn storage device 12. The waxing device 14 is a device that applies wax to the spun yarn 10 that travels from the yarn storage device 12 toward the winding device 13.

  The winding device 13 includes a cradle arm 71 supported so as to be swingable around a support shaft 70. The cradle arm 71 can rotatably support a bobbin 48 for winding the spun yarn 10.

  The winding device 13 includes a winding drum 72 and a traverse device 75. The winding drum 72 is configured to be able to be driven in contact with the outer peripheral surface of the package 45 formed by winding the bobbin 48 and the spun yarn 10 thereon. The traverse device 75 includes a traverse guide 76 that can be engaged with the spun yarn 10. With this configuration, 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), so that the package 45 in contact with the winding drum 72 is removed. The package 45 is wound up while rotating and traversing the spun yarn 10. The traverse guide 76 of the traverse device 75 is driven in common by the spinning units 2 by a shaft shared by the plurality of spinning units 2.

  The blower box 80 stores an air supply source (negative pressure source) that generates air to be supplied to each part of the spinning unit 2, the yarn splicing cart 3, and the like.

  Next, the details of the installation position of the yarn joining cart 3 will be described. FIG. 3 is a schematic view showing a longitudinal section of the spinning machine. As shown in FIG. 3, the casing 6 of the spinning machine 1 includes an upper frame (machine frame) 61, a front column (machine frame) 62, a back column (machine frame) 63, and a lower frame (machine frame). Frame) 64 and a base 65. In the height direction of the spinning machine 1, the upper frame 61 is disposed above the lower frame 64, and is supported by a front column 62 and a back column 63 that are erected on the lower frame 64. The upper frame 61 and the lower frame 64 extend in the arrangement direction of the spinning units 2. A plurality of front columns 62 and back columns 63 are provided at predetermined intervals in the direction in which the spinning units 2 are arranged. The back column 63 is provided at a position near the back side of the spinning machine 1. The front strut 62 is provided at a position closer to the front side (operator passage side) of the spinning machine 1 than the back strut 63. The base 65 is installed between the lower frame 64 and the ground G and supports the lower frame 64. A plurality of bases 65 are provided at predetermined intervals in the direction in which the spinning units 2 are arranged.

  The above-described draft device 7, pneumatic spinning device 9, yarn clearer 52, yarn storage device 12, and waxing device 14 are attached to the upper frame 61. An upper rail 41 a extending in the arrangement direction of the spinning units 2 is attached to the lower surface of the upper frame 61 at a position on the front side of the spinning machine 1 with respect to the front column 62. The upper rail 41a is formed by one surface portion that extends in the vertical direction among the U-shaped member 41 having a substantially U-shaped cross section that has an open portion disposed downward and extends in the arrangement direction of the spinning units 2. It is configured.

  The above-described winding device 13 is attached to the lower frame 64. A lower rail 41b extending in the arrangement direction of the spinning units 2 is attached to the upper surface of the lower frame 64 at a position closer to the front side (operator passage side) of the spinning machine 1 than the front side support column 62.

  The yarn joining cart 3 is placed on the lower rail 41b. The yarn joining cart 3 is provided with traveling wheels 42 that abut on the upper surface of the lower rail 41b in a state where the yarn joining cart 3 is placed on the lower rail 41b. The yarn joining cart 3 travels on the lower rail 41b by driving the traveling wheels 42 by a traveling drive wheel motor (not shown). Further, the yarn splicing carriage 3 is provided with a pair of lower guide rollers (guides, lower guides) 310 slidably in contact with the front surface of the spinning machine 1 and the rear surface of the lower rail 41b. It has been. The lower guide roller pair 310 is provided in the vicinity of both ends of the yarn joining cart 3 in a direction substantially parallel to the extending direction of the lower rail 41b (a direction substantially parallel to the moving direction of the yarn joining cart 3). (See FIG. 1).

  An upper guide roller pair (guide, upper guide) 350 is provided on the upper portion of the yarn splicing carriage 3 so as to be slidably in contact with the front surface of the spinning machine 1 and the rear surface of the upper rail 41a. ing. When the upper guide roller pair 350 sandwiches the surface on the near side of the spinning machine 1 and the surface on the far side of the upper rail 41a, the yarn splicing cart 3 may fall into the near side and the far side of the spinning machine 1. Is prevented. The upper guide roller pair 350 is provided in the vicinity of both ends of the yarn splicing carriage 3 in a direction substantially parallel to the extending direction of the upper rail 41a (a direction substantially parallel to the moving direction of the yarn splicing carriage 3). (See FIG. 1).

  The yarn joining cart 3 is configured such that the lower guide roller pair 310 is slidably contacted with the lower rail 41b, and the upper guide roller pair 350 is slidably contacted with the upper rail 41a. It moves along a direction substantially parallel to the extending direction of the rail 41b.

  Next, details of the mounting structure of the upper guide roller pair 350 will be described. FIG. 4 is a view of the periphery of the upper guide roller pair as viewed from the back side of the spinning machine. FIG. 5 is a view of the periphery of the upper guide roller pair as viewed from the moving direction side of the yarn splicing carriage. FIG. 6 is a view of the upper guide roller pair as viewed from above. As shown in FIGS. 4 to 6, the upper guide roller pair 350 is fixed to the housing (main body portion) 300 of the yarn splicing carriage 3 via a tiltable bracket (guide switching portion, sensor switching portion) 360. The upper guide roller pair 350 includes a guide roller 350a and a guide roller 350b. The tiltable bracket 360 includes a shaft support member 370 and a tiltable member 380.

  The shaft support member 370 includes a fixed portion 370a and shaft support portions 370b and 370c. The fixing portion 370a is fixed to the side surface of the casing 300 of the yarn splicing carriage 3 with a bolt or the like (not shown). The shaft support portion 370b extends in a direction substantially parallel to the arrangement direction of the spinning units 2 from an end portion on the front side of the spinning machine 1 in the fixed portion 370a. Similarly, the shaft support portion 370c extends from the end of the fixed portion 370a on the back side of the spinning machine 1 in a direction substantially parallel to the direction in which the spinning units 2 are arranged. The shaft support portion 370b and the shaft support portion 370c support both ends of the rotation shaft 371, respectively. That is, the direction of the axis of the rotation shaft 371 is a direction orthogonal to the extending direction of the upper rail 41a.

  The tiltable member 380 includes a roller mounting portion 380a, rotating portions 380b and 380c, and a reinforcing portion 380d. One end of each of the rotating portions 380b and 380c is rotatably supported by the rotating shaft 371. The other end sides of the rotating portions 380b and 380c are connected to the roller mounting portion 380a, respectively. One end sides of the rotating portions 380b and 380c are located between the shaft support portion 370b and the shaft support portion 370c, respectively. The reinforcement part 380d is provided between the rotation part 380b and the rotation part 380c. The reinforcing portion 380d is in a state where the rotation portion 380b and the rotation portion 380c are rotated about the rotation shaft 371 so that the roller mounting portion 380a is in the upper position (state shown in FIG. 4). The shaft support member 370 is provided at a position in contact with the fixed portion 370a. The reinforcing portion 380d is connected to the roller mounting portion 380a and the rotating portions 380b and 380c, respectively, and reinforces the collapsible member 380.

  On the upper surface of the roller mounting portion 380a in a state where the rotating portions 380b and 380c are rotated so that the roller mounting portion 380a is at the upper position (the state shown in FIG. 4), the upper guide roller pair 350 is respectively a guide spacer 381. Is attached through. The upper guide roller pair 350 sandwiches the upper rail 41 a from the near side and the far side of the spinning machine 1. The distance between the guide roller 350a and the guide roller 350b is substantially equal to the thickness of the upper rail 41a. The guide spacer 381 adjusts the height position when the upper guide roller pair 350 contacts the upper rail 41a. A sensor attachment that extends toward the upper rail 41a is attached to the rotation portion 380b and the rotation portion 380c in a state where the rotation portion 380b and the rotation portion 380c are rotated so that the roller attachment portion 380a is at the upper position. A portion 380bb and a sensor mounting portion 380cc are provided. The sensor mounting portion 380bb and the sensor mounting portion 380cc are for mounting a detection sensor for detecting a detection point (not shown) provided on the upper rail 41a. In the present embodiment, a detection sensor 385 that detects a detection point (not shown) provided on the upper rail 41a is attached to the sensor attachment portion 380cc. The detection sensor 385 is attached to the sensor attachment portion 380cc via a sensor spacer 386. The sensor spacer 386 adjusts the distance between the detection sensor 385 and the upper rail 41a.

  The retractable member 380 has a fixing bolt (fixing member) 390 through a hole 380e provided in the roller mounting portion 380a in a state where the reinforcing portion 380d of the tiltable member 380 and the fixing portion 370a of the shaft support member 370 are in contact with each other. The fixing portion 370d and the fixing portion 370a can be joined by screwing the fixing portion 370a and the housing 300 side. By this fixing bolt 390, the rotation of the tiltable member 380 is restricted, and the state in which the tiltable member 380 is rotated so that the roller mounting portion 380a is at the upper position is maintained. Note that the position of the upper guide roller pair 350 in a state where the retractable member 380 is rotated so that the roller mounting portion 380a is in the upper position is referred to as a contact position where the upper guide roller pair 350 contacts the upper rail 41a. .

  Next, how the upper guide roller pair 350 rotates will be described. FIG. 7 is a diagram illustrating a state in which the retractable member is rotated to switch the upper guide roller pair to the separated position. As shown in FIG. 4, when the fixing bolt 390 is removed from the state in which the retractable member 380 is fixed at the contact position by the fixing bolt 390, as shown in FIG. 7, the retractable member 380 moves the rotation shaft 371. It rotates as a rotation axis. At this time, the collapsible member 380 rotates so that the upper guide roller pair 350 moves along a direction substantially parallel to the extending direction of the upper rail 41a. In this way, by rotating the retractable member 380 to the position where the upper guide roller pair 350 is separated from the upper rail 41a, the upper part of the yarn splicing carriage 3 is not guided by the upper rail 41a. The position of the upper guide roller pair 350 in a state where the upper guide roller pair 350 is separated from the upper rail 41a is referred to as a separated position. In this way, the position of the upper guide roller pair 350 can be switched between the contact position and the separation position by the rotation of the retractable member 380.

  On the other hand, as shown in FIG. 7, the upper guide roller pair 350 is turned from the upper rail 41a as shown in FIG. 4 by rotating the retractable member 380 from the state where the upper guide roller pair 350 is separated from the upper rail 41a. Will be sandwiched. In this state, using the fixing bolt 390, the rotation of the retractable member 380 is restricted by fixing both the reinforcing portion 380d and the fixing portion 370a so as to contact each other.

  Next, a procedure for removing the yarn joining cart 3 from the upper rail 41a and the lower rail 41b will be described. FIG. 8 is a schematic view of the yarn joining cart viewed from the back side of the spinning machine. FIG. 9 is a diagram illustrating a state in which the yarn splicing carriage is lifted using the attachment / detachment device. As shown in FIGS. 8 and 9, in the spinning machine 1, a member such as a pipe through which air flows is not provided at the back side of the spinning machine 1 in the yarn splicing carriage 3, and the upper frame 61, the front side. An opening R surrounded by the side column 62, the back column 63, and the lower frame 64 is formed. On the other hand, at the position on the front side of the spinning machine 1 in the yarn splicing carriage 3, a winding device 13 and a yarn path for the spun yarn 10 between the yarn storage device 12 and the winding device are provided. That is, the spinning machine 1 is configured such that the yarn joining cart 3 can be removed and attached via the opening R that opens to the back side of the spinning machine 1.

  Further, as shown in FIG. 8, a lower frame 301 is provided at the lower part of the casing 300 of the yarn joining cart 3. On the lower surface of the lower frame 301, the above-described traveling wheel 42, the lower guide roller pair 310, and the like are attached. A predetermined gap is provided between the lower frame 301 and the lower rail 41b. This gap serves as the insertion port 302 of the support arm 101 that supports the yarn joining cart 3 when the yarn joining cart 3 is lifted by the attachment / detachment device 100.

  When removing the yarn joining cart 3 from the upper rail 41a and the lower rail 41b, first, the yarn joining cart 3 is lifted and moved behind the yarn joining cart 3 (the back side of the spinning machine 1 in the yarn joining cart 3). The detachable device 100 is arranged. And the support arm 101 extended in the horizontal direction from the main-body part 102 of the attachment or detachment apparatus 100 is inserted in the insertion port 302 between the lower frame 301 and the lower rail 41b. At this time, the yarn joining cart 3 is supported by the support mechanism 103 provided on the support arm 101 so as not to fall down.

  Then, the fixing bolt 390 that restricts the rotation of the retractable member 380 is removed. Thereafter, the retractable member 380 is rotated to separate the upper guide roller pair 350 from the upper rail 41a. Then, the support arm 101 is raised by a lift mechanism (not shown) provided in the attachment / detachment device 100 to lift the yarn joining cart 3. At this time, the height at which the yarn splicing cart 3 is lifted is a height until the lower guide roller pair 310 provided at the lower portion of the yarn splicing cart 3 is detached from the lower rail 41b.

  Predetermined gaps are provided between the upper surface of the housing 300 of the yarn splicing carriage 3 and the upper rail 41 a and between the housing 300 and the lower surface of the upper frame 61. Thereby, the yarn joining cart 3 can be lifted. Further, in order to allow the yarn joining cart 3 to be lifted, the shape of the tiltable bracket 360 is set so that the lower end portion of the upper rail 41 a does not hit the tiltable bracket 360.

  After the yarn joining cart 3 is lifted, the yarn joining cart 3 can be taken out of the spinning machine 1 by moving the attachment / detachment device 100 toward the back side of the spinning machine 1.

  Similarly, when the yarn joining cart 3 is installed on the lower rail 41 b, the yarn joining cart 3 is carried into the spinning machine 1 from the back side of the spinning machine 1 by the attaching / detaching device 100. Then, the support arm 101 is arranged such that the traveling wheel 42 rides on the upper surface of the lower rail 41b, and the lower guide roller pair 310 abuts the front surface and the rear surface of the spinning machine 1 in the lower rail 41b. And the yarn joining cart 3 is placed on the lower rail 41b.

  Then, the tiltable member 380 is rotated to sandwich the upper rail 41a by the upper guide roller pair 350. Thereafter, the rotation of the tiltable member 380 is restricted by the fixing bolt 390.

  Then, the support mechanism 103 is released from the support of the yarn splicing carriage 3, and the attachment / detachment apparatus 100 is moved to the back side of the spinning machine 1, whereby the support arm 101 is pulled out from the insertion port 302.

  Thus, the yarn joining cart 3 can be attached to and detached from the upper rail 41a and the lower rail 41b from the back side of the spinning machine 1.

  As described above, in the yarn splicing carriage 3 according to the present embodiment, the upper guide roller pair 350 that is slidably contacted with the upper rail 41a is in contact with the upper rail 41a and is separated from the upper rail 41a. And can be switched. Since the upper guide roller pair 350 is separated from the upper rail 41a by switching the upper guide roller pair 350 to the separation position, the yarn joining cart 3 can be easily detached from the upper rail 41a and the lower rail 41b. Further, by installing the yarn splicing carriage 3 on the lower rail 41b in a state where the upper guide roller pair 350 is in the separated position, and rotating the retractable member 380 to switch the upper guide roller pair 350 to the contact position, Attachment to the upper rail 41a and the lower rail 41b of the yarn splicing carriage 3 is facilitated. Since the yarn joining cart 3 can be attached / detached at any location on the upper rail 41a and the lower rail 41b, a space for attaching / detaching the yarn joining cart 3 is provided at the end positions of the upper rail 41a and the lower rail 41b. The space can be used effectively.

  By simply tilting the tiltable member 380, the upper guide roller pair 350 can be switched between the contact position and the separation position, and the position of the upper guide roller pair 350 can be easily switched.

  By rotating the upper guide roller pair 350 along a direction substantially parallel to the extending direction of the upper rail 41a, the upper guide roller pair 350 interferes with the upper rail 41a and the position of the upper guide roller pair 350 is switched. The position of the upper guide roller pair 350 can be easily switched without being hindered.

  The upper guide roller pair 350 can be fixed at the contact position by the fixing bolt 390. Accordingly, the position of the upper guide roller pair 350 can be easily fixed at the contact position by the fixing bolt 390.

  By rotating the tiltable member 380, the position of the detection sensor 385 is switched between a detection position for detecting a detection point (not shown) provided on the upper rail 41a and a separation position separated from the upper rail 41a. Can do. Since the position of the detection sensor 385 can be switched together with the upper guide roller pair 350 by rotating the retractable member 380 as described above, the detection sensor 385 interferes with the upper rail 41a during the attaching / detaching operation of the yarn joining cart 3. It is possible to prevent the yarn splicing cart 3 from being attached and detached easily.

  The position of the upper guide roller pair 350 provided at the upper position of the yarn splicing carriage 3 is switched by the tiltable bracket 360. Accordingly, the yarn joining cart 3 can be easily removed from the upper rail 41a and the lower rail 41b by rotating the retractable member 380 to switch the upper guide roller pair 350 to the separated position and lifting the yarn joining cart 3. it can.

  By using the upper guide roller pair 350 that sandwiches the upper rail 41a as the guide that slidably contacts the upper rail 41a, the yarn joining cart 3 can be moved along the upper rail 41a without rattling. Similarly, by using the lower guide roller pair 310 that sandwiches the lower rail 41b as a guide that slidably contacts the lower rail 41b, the yarn joining cart 3 can be moved along the lower rail 41b without rattling. Can do.

  Even a spinning machine 1 including a plurality of spinning units 2 and a yarn splicing carriage 3 that moves between the plurality of spinning units 2 moves along an upper rail 41a and a lower rail 41b provided in the spinning machine 1. The yarn splicing cart 3 can be easily attached and detached.

  The yarn splicing carriage 3 for splicing the spun yarn 10 generated by the spinning unit 2 can be easily attached to and detached from the upper rail 41a and the lower rail 41b.

  The yarn splicing carriage 3 for splicing the spun yarn 10 spun by the pneumatic spinning device 9 can be easily attached to and detached from the upper rail 41a and the lower rail 41b.

  The yarn joining carriage 3 can be attached and detached from the opening R on the opposite side of the spun yarn 10 between the pneumatic spinning device 9 and the winding device 13, that is, on the back side of the spinning machine 1. As a result, the yarn splicing carriage 3 can be moved to the upper rail 41a and the lower rail 41b without interfering with the winding device 13 provided on the front side of the spinning machine 1 or the yarn path of the spun yarn 10. It can be easily detached from the opening R on the back side.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and may be modified without changing the gist described in each claim.

  In the yarn splicing cart 3 of the embodiment, the position of the upper guide roller pair 350 that is slidably contacted with the upper rail 41a is switched by the tiltable bracket 360, but the same configuration as that of the tiltable bracket 360 is the lower guide. The present invention may be applied to the roller pair 310 so that the position of the lower guide roller pair 310 is switched instead of the upper guide roller pair 350. Even in this case, by switching the position of the lower guide roller pair 310 between a contact position that contacts the lower rail 41b and a replacement position that is separated from the lower rail 41b, the yarn joining carriage 3 is moved to the upper rail 41a. And can be easily attached to and detached from the lower rail 41b.

  Further, a configuration similar to that of the retractable bracket 360 may be applied to the lower guide roller pair 310 to switch the positions of both the upper guide roller pair 350 and the lower guide roller pair 310. In this case, by moving the upper guide roller pair 350 and the lower guide roller pair 310 to the separated positions, the lower frame 301 does not interfere with the lower rail 41b, and the yarn joining cart 3 is lifted slightly. The yarn joining cart 3 can be detached from the upper rail 41a and the lower rail 41b.

  In the yarn joining cart 3 of the embodiment, the rotation of the tiltable member 380 is restricted by the fixing bolt 390. However, the rotation of the tiltable member 380 is performed by a member other than the fixing bolt 390 (for example, a lock mechanism). It can also be regulated.

  In the yarn splicing cart 3 of the embodiment, the detection sensor 385 is attached to the retractable member 380 of the tiltable bracket 360. However, the detection sensor 385 is attached to a tiltable bracket other than the tiltable bracket 360, and the upper guide roller pair 350 is attached. Independently, the position of the detection sensor 385 can be switched between the detection position and the separation position.

  In the spinning machine 1 and the spinning unit 2 according to the embodiment, the spun yarn 10 is pulled out from the air spinning device 9 by the yarn accumulating roller 21 that winds and stores the spun yarn 10 by a certain amount, but the present invention includes a delivery roller and a nip roller. The present invention may be applied to a spinning machine and a spinning unit that draws a spun yarn from an air spinning device.

  In the spinning machine 1 and the spinning unit 2 of the embodiment, the yarn path is set so that the spun yarn 10 travels downward from the upper draft device 7 toward the lower winding device 13. The present invention may be applied to a spinning machine or a spinning unit in which a yarn path is set so that the spun yarn travels from the bottom to the top in the machine base height direction.

  In the spinning machine 1 and the spinning unit 2 of the embodiment, the pneumatic spinning device 9 may include a needle that is held by the fiber guide portion and arranged to protrude into the spinning chamber. The needle prevents the twist of the fiber bundle 8 from propagating upstream of the air spinning device 9. The air spinning device 9 may prevent twist propagation of the fiber bundle 8 by using the downstream end portion of the fiber guide portion instead of the needle. The air spinning device 9 may include a pair of air jet nozzles that twist in opposite directions.

  In the spinning machine 1 and the spinning unit 2 of the embodiment, at least some of the plurality of bottom rollers of the draft device 7 and the traverse guide 76 of the traverse device 75 are driven in common to each spinning unit 2. The invention may be applied to a spinning machine and a spinning unit in which each part of the spinning unit (for example, a drafting device, a pneumatic spinning device, a yarn winding device, etc.) is independently driven by each spinning unit 2.

  In the above embodiment, the case where the present invention is applied to the yarn splicing cart 3 that performs the yarn splicing operation of the spinning machine 1 is described as an example. The present invention can be applied to a doffing cart that is removed from the winding device 13 and moved to a predetermined location.

  The yarn clearer 52 according to the embodiment detects the yarn defect of the spun yarn 10 by monitoring the thickness of the spun yarn 10. However, the yarn clearer 52 monitors the presence or absence of the foreign material contained in the spun yarn 10 and contains the foreign material. It can also be detected as a yarn defect.

  DESCRIPTION OF SYMBOLS 1 ... Spinning machine, 2 ... Spinning unit (processing unit), 3 ... Yarn splicing cart (working cart), 6 ... Housing (machine frame), 7 ... Draft device, 9 ... Pneumatic spinning device, 13 ... Winding device 41a ... upper rail (rail), 41b ... lower rail (rail), 61 ... upper frame (machine base frame), 62 ... front side support (machine base frame), 63 ... back side support (machine base frame), 64 ... Lower frame (machine frame), 310 ... Lower guide roller pair (guide, lower guide), 350 ... Upper guide roller pair (guide, upper guide), 360 ... Retractable bracket (switching unit), 385 ... Detection sensor 390 ... Fixing bolt (fixing member), R ... Opening.

Claims (13)

A work cart that is movable along a rail between a plurality of processing units,
A guide that contacts the rail;
A guide switching unit that switches the guide to a contact position that contacts the rail, and a separation position that separates from the rail;
The main body part to which the guide switching part is attached and moves along the rail;
A work carriage characterized by comprising:   The work carriage according to claim 1, wherein the guide switching unit switches the guide between the contact position and the separation position by tilting the guide.   The work carriage according to claim 2, wherein the guide switching unit rotates the guide along a direction substantially parallel to a moving direction of the main body.   The work cart according to claim 3, further comprising a fixing member that fixes the guide switching unit at the contact position. A detection sensor for detecting a detected point provided on the rail;
A sensor switching unit that switches the detection sensor to a detection position for detecting the detected point and a separation position separated from the rail;
The work cart according to any one of claims 1 to 4, further comprising: A detection sensor for detecting a detected point provided on the rail;
The guide switching unit switches the detection sensor to a detection position for detecting the detected point and a separation position separated from the rail, together with switching of the position of the guide. The work trolley as described in any one.   The said guide contact | abuts either the said rail provided above the said main-body part, or the said rail provided below the said main-body part, The any one of Claims 1-6 characterized by the above-mentioned. Work cart as described in the section.   The guide is composed of an upper guide that contacts the rail provided above the main body and a lower guide that contacts the rail provided below the main body. The work trolley | bogie as described in any one of Claims 1-6.   The work carriage according to claim 1, wherein the guide is a pair of rollers that sandwich the rail. Multiple processing units;
The work cart according to any one of claims 1 to 9, which is movable along the rail between the plurality of processing units and capable of performing work on the plurality of processing units.
A spinning machine characterized by comprising: Each of the plurality of processing units includes a yarn feeding device that supplies spun yarn, and a winding device that winds the spun yarn supplied by the yarn feeding device to form a package,
The working carriage includes a yarn splicing device that joins the spun yarn supplied from the yarn feeding device and the spun yarn of the package when the continuous state of the spun yarn is divided in at least one of the processing units. It is a yarn splicing cart,
The spinning machine according to claim 10, wherein: The yarn feeding device includes:
A draft device that drafts a sliver into a fiber bundle;
An air spinning device for producing a spun yarn by spinning a fiber bundle drafted by the draft device with a swirling airflow;
The spinning machine according to claim 11, comprising:   By switching the guide to the contact position and the separation position from the side opposite to the yarn path side of the spun yarn between the yarn feeding device and the winding device with respect to the main body portion, the work carriage is changed. The spinning machine according to claim 11 or 12, further comprising a machine base frame in which an opening that can be attached to and detached from the rail is formed.

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