JP2021025141A - Spinning machine - Google Patents

Abstract

To provide a structure capable of guiding a core yarn along an adequate path in a spinning machine having a winding device mounted above a spinning device.SOLUTION: A spinning machine 1 includes a spinning unit 2, a core yarn-supplying device 13, and a doffing truck 3. The core yarn-supplying device 13 supplies a core yarn 26 to the spinning unit 2. The doffing truck 3 runs on an upper part of or above the spinning unit 2 to work on the spinning unit 2. The spinning unit 2 includes a draft device 12, an air spinning device 14, and the winding device 18. The air spinning device 14 produces a spun yarn 23 with the core yarn 26 supplied from the core yarn-supplying device 13 and a fiber bundle 22. The winding device 18 is mounted above the air spinning device 14. The core yarn-supplying device 13 guides the core yarn 26 to make the core yarn 26 join the fiber bundle 22 on the same level as or in a lower position of a rotation center of a front-top roller 35a, whichever is mounted in a higher position among a front roller pair 35.SELECTED DRAWING: Figure 2

Description

The present invention mainly relates to a spinning machine provided with a core yarn supply device.

Patent Document 1 discloses an apparatus for supplying a continuous yarn used as a core yarn and winding fibers around the continuous yarn to produce a yarn. The continuous yarn is wound around the bobbin S. The continuous yarn is pulled out from the bobbin S, turned by a turning roller, and guided to the fiber guide passage through which the fibers pass.

Japanese Unexamined Patent Publication No. 2002-227052

However, Patent Document 1 does not disclose in detail the path for guiding the core yarn (continuous yarn).

A main object of the present invention is to provide a configuration capable of guiding a core yarn by an appropriate path in a spinning machine in which a winding device is arranged above the spinning device.

Means and effects to solve problems

From the viewpoint of the present invention, a spinning machine having the following configuration is provided. That is, this spinning machine includes a spinning unit, a core yarn supply device, and a traveling work machine. The core yarn supply device guides the core yarn and supplies the core yarn to the spinning unit. The traveling work machine travels on or above the spinning unit and works on the spinning unit. The spinning unit includes a draft device, a spinning device, and a winding device. The draft device includes a pair of front rollers, and drafts a sliver into a fiber bundle. The spinning device produces a spun yarn from the core yarn supplied from the core yarn supply device and the fiber bundle. The take-up device is arranged above the spinning device, and winds the spun yarn to form a package. The core yarn supply device guides the core yarn so that the core yarn joins the fiber bundle at the same height or lower position as the rotation center of the front top roller arranged at a higher position among the front roller pairs. To do.

As described above, in the layout in which the winding device is arranged above the spinning device and the traveling work machine travels above or above the spinning unit, the space for arranging the core yarn supply device is limited. However, by arranging the core thread supply device as described above, it becomes difficult for the core thread to wind around the front top roller. Therefore, it is possible to generate a spun yarn in which the fiber bundle and the core yarn are appropriately arranged.

The spinning machine preferably has the following configuration. That is, when viewed in the axial direction of the front roller pair, the angle formed by the traveling path of the fiber bundle conveyed by the draft device and the traveling path of the core thread conveyed by the core thread supply device. Is 20 ° or more and 80 ° or less.

As a result, it is possible to generate a spun yarn in which the core yarn is less likely to be wound around the front top roller and the fiber bundle and the core yarn are more easily arranged.

The spinning machine preferably has the following configuration. That is, the core yarn supply device includes a core yarn package holding portion, an unwinding fulcrum portion, and a support portion. The core thread package holding portion holds the core thread package. The unwinding fulcrum portion serves as an unwinding fulcrum of the core yarn unwound from the core yarn package. The support portion is supported on the floor or suspended from the ceiling at a position horizontally separated from the spinning unit, and supports the core yarn package holding portion and the unwinding fulcrum portion.

As a result, the support portion of the core yarn supply device and the like are arranged away from the spinning unit, so that a space can be formed around the spinning unit. Therefore, for example, a wide working space for the operator can be secured, and a large core yarn package can be arranged. Further, the core yarn supply device can be easily added to the spinning machine that does not have the core yarn supply device.

The spinning machine may be provided with a protective member that covers at least a part of the radial outer side of the core yarn in at least a part of the traveling path of the core yarn from the core yarn package holding portion to the spinning unit. preferable.

Thereby, the core yarn can be protected. As a result, it is possible to prevent the traveling work machine and / or the operator from interfering with the core yarn.

In the spinning machine, the protective member is preferably arranged below the lower end of the traveling work machine.

As a result, even if the traveling work machine travels, it does not come into contact with the protective member, so that the traveling work machine can be moved smoothly.

In the spinning machine, the protective member is preferably arranged so as to be inclined so that the side close to the core yarn package holding portion is high and the side close to the spinning unit is low.

As a result, a space can be secured around the core yarn supply device.

The spinning machine preferably has the following configuration. That is, the core yarn supply device includes a core yarn package holding portion, an unwinding fulcrum portion, and a support portion. The core thread package holding portion is provided so that the unwinding side of the core thread package faces upward and the end of the unwinding side of the core thread package is lower than the rotation center of the front top roller. Hold the core yarn package. The unwinding fulcrum portion serves as an unwinding fulcrum of the core yarn unwound from the core yarn package. The support portion supports the core yarn package holding portion and the unwinding fulcrum portion.

As a result, the core yarn package can be held by the core yarn package holding portion in a state in which the core yarn is oriented along the path of joining the fiber bundle.

In the spinning machine, the support portion is preferably attached to the spinning unit.

As a result, the size of the core yarn supply device including the support portion can be reduced.

In the spinning machine, the core yarn package holding portion is provided with a contact surface that contacts the lower end of the core yarn package, and the height from the floor to the contact surface is preferably 55 cm or more and 85 cm or less. ..

As a result, it is possible to have the operator perform the core thread package replacement work, confirmation work, and the like in a reasonable posture.

The spinning machine preferably has the following configuration. That is, the traveling work machine has a ball lifting device for lifting the package formed by the winding device, a yarn catching device for catching the spun yarn of the spinning unit, and a yarn of the spun yarn of the spinning unit. At least one of the thread splicing devices to be spliced is provided as a movable member. The core thread supply device is arranged at a position that does not interfere with the movable member of the traveling work machine and the operation locus of the movable member.

As a result, even if the traveling work machine performs the work, it does not come into contact with the core thread supply device, so that the traveling work machine can perform the work smoothly.

The spinning machine preferably has the following configuration. That is, a plurality of the spinning units are arranged side by side. The core yarn supply device includes a supply unit that supplies the core yarn to the spinning unit. The two spinning units arranged side by side include one openable and closable draft cradle. The supply unit can be moved to a position that does not interfere with the opening / closing locus of the draft cradle.

As a result, interference between the draft cradle and the core yarn supply device can be prevented.

The front view which shows the overall structure of the spinning machine which concerns on one Embodiment of this invention. Side view of multiple spinning machines arranged side by side. Side view of the spinning unit. Side view around the draft device. Front view around the draft device. A side view around the draft device of the first modification. The front view of the spinning machine of the 2nd modification.

Next, the spinning machine 1 according to the embodiment of the present invention will be described with reference to the drawings. The spinning machine 1 shown in FIG. 1 includes a plurality of spinning units 2 arranged side by side, a ball lifting carriage (traveling work machine) 3, a prime mover box 4, and a machine stand control device 5.

The spinning unit 2 generates the spun yarn 23 from the sliver 21 stored in the sliver storage unit 11. The spinning unit 2 winds the spun yarn 23 to form the package 24. The ball lifting trolley 3 can travel along the parallel direction of the spinning unit 2. The ball-lifting carriage 3 removes the package 24 formed by the spinning unit 2 from the spinning unit 2 and prepares for forming a new package 24 (supply of the take-up pipe 24a described later, etc.). In the prime mover box 4, a drive source common to each spinning unit 2 is arranged. The machine stand control device 5 is a device that centrally manages each configuration included in the spinning machine 1. The machine base control device 5 includes an input unit 5a and a display unit 5b. By the operator performing an appropriate operation using the input unit 5a, the specific spinning unit 2 or all the spinning units 2 can be set, or the setting and the state of the specific spinning unit 2 or all the spinning units 2 can be set. It can be displayed on the display unit 5b.

Further, for example, when the side on which the back roller pair 31 described later is provided is referred to as the front side of the apparatus, as shown in FIG. 2, the two spinning machines 1 are arranged close to each other so that the back side of the apparatus faces each other. Has been done. When this is referred to as one set of spinning machines 1, the two sets of spinning machines are arranged at intervals so that an operator passage 6 is formed between them. That is, the spinning machine 1 is arranged so that the front side of the device faces the operator passage 6 side. The operator moves along the operator passage 6 and confirms the state of the spinning unit 2 or the display of the display unit 5b.

As shown in FIGS. 2 and 3, each spinning unit 2 includes a sliver storage unit 11, a draft device 12, a core yarn supply device 13, an air spinning device 14, a thread monitoring device 15, and a thread storage device 16. , A thread joining device 17, and a winding device 18. In addition, in this specification, "upstream" and "downstream" mean upstream and downstream in the traveling direction of a sliver 21, a fiber bundle 22, a spun yarn 23, or a core yarn 26 at the time of spinning.

The draft device 12 is arranged below the center of the spinning unit 2 in the height direction, and is attached to the frame 10 of the spinning unit 2 via an attachment member (not shown). As shown in FIG. 3, the draft device 12 has four roller pairs, a back roller pair 31, a third roller pair 32, a middle roller pair 34 with an apron belt 33 mounted, and a front roller pair 35, in this order from the upstream side. I have. The draft device 12 is arranged so as to be inclined so as to approach the upper side and the back side of the device as it approaches the downstream side. The draft device 12 drafts the sliver 21 supplied from the sliver storage unit 11 until it reaches a predetermined thickness. Further, in the present embodiment, the fiber bundle passing through the draft device 12 and the fiber passing through the draft device 12 are referred to as a fiber bundle 22. The fiber bundle 22 that has passed through the draft device 12 is supplied to the air spinning device 14.

Further, in the following, among the front roller pairs 35, the roller arranged on the upper side is referred to as a front top roller 35a, and the roller arranged on the lower side is referred to as a front bottom roller 35b. Further, among a plurality of roller pairs, the rollers arranged on the upper side are collectively referred to as top rollers, and the rollers arranged on the lower side are collectively referred to as bottom rollers. As shown in FIGS. 4 and 5, the top roller is rotatably attached to the draft cradle 37. As shown in FIG. 1, the top rollers of two spinning units 2 arranged side by side are attached to one draft cradle 37. Further, as shown in FIG. 4, the draft cradle 37 is configured to be openable / closable (rotatable) with a straight line parallel to the rotation center of the front roller pair 35 as the rotation center. As a result, maintenance of the draft device 12 (for example, maintenance work by an operator) can be performed. Further, the bottom roller is rotatably attached to the draft base 38.

The rotation centers of all the roller pairs included in the draft device 12 are in the same direction (parallel) as the parallel direction of the spinning unit 2. Therefore, the "view in the axial direction of the front roller vs. 35" corresponds to the side view.

The core thread supply device 13 includes a support column 41, a support portion 42, a core thread package holding portion 43, an unwinding fulcrum portion 44, a protective member 45, a supply portion 46, and an angle adjusting portion 47.

The column 41 is attached to the floor of the textile factory. The support column 41 is, for example, a metal rod. The support column 41 extends upward from the floor and supports each part of the core thread supply device 13 at a high position. In the present embodiment, one column 41 is shared by the spinning machines 1 arranged so that the front sides of the apparatus face each other. In other words, the support column 41 collectively supports each part of the two core thread supply devices 13. Further, the support column 41 is not limited to a structure that is attached to the floor, but is a structure that is attached to another structure or a structure that is suspended from the ceiling or a support member (metal rod or the like) suspended from the ceiling. There may be. The support column 41 is a member included in the core yarn supply device 13, but a structure provided in advance in the textile factory can be used instead. That is, the support column 41 can be omitted from the core thread supply device 13.

The support portion 42 is attached to the support column 41. The support portion 42 is supported on the floor via a support column 41 or another structure. The support portion 42 extends from the mounting position with the support column 41 so as to approach the spinning unit 2 side. The support portion 42 supports the core yarn package holding portion 43, the unwinding fulcrum portion 44, and the protective member 45. The support portion 42 is, for example, a metal rod.

The core thread package holding portion 43 holds the core thread package 25 around which the core thread 26 is wound. The raw material of the core thread 26 may be the same as or different from the raw material of the sliver 21. The core thread package holding portion 43 holds the end portion of the core thread package 25 on the undissolved side so that the axial direction of the core thread package 25 is closer to the horizontal direction than the vertical direction (in other words, the axial direction). Hold the core yarn package 25 (so that the horizontal angle is less than 45 °). Further, as shown in FIG. 2, the core yarn package holding portion 43 is arranged above or below the supporting portion 42. Specifically, two core yarn package holding portions 43 adjacent to each other in the parallel direction of the spinning unit 2 are arranged, one above the support portion 42 and the other below the support portion 42. As a result, it is possible to prevent interference between the core thread packages 25 and improve the workability of the replacement work of the core thread package 25. Since interference between the core thread packages 25 is prevented, the core thread package 25 having a large diameter can be held by the core thread package holding portion 43.

The unwinding fulcrum portion 44 is a member serving as an unwinding fulcrum of the core yarn 26 unwound from the core yarn package 25. The unwinding fulcrum is a position through which the core thread 26 always passes, regardless of the unwinding position of the core thread package 25 (the position where the core thread 26 is peeled off from the core thread package 25). The unwinding fulcrum portion 44 is, for example, a round hole or a tubular member formed in a plate-shaped member, and the unwinding fulcrum portion 44 is unwound by passing the core thread 26 inside the unwinding fulcrum portion 44. It becomes a fulcrum. The unwinding fulcrum portion 44 is arranged, for example, on an extension line of the shaft of the core yarn package 25.

The protective member 45 is arranged on the downstream side of the unwinding fulcrum portion 44. The protective member 45 has a tubular shape (thread pipe), and the core thread 26 passes through the inside. The protective member 45 is a member having a long shape in the axial direction, and is arranged so that the longitudinal direction and the traveling direction of the core thread 26 coincide with each other. By covering the core thread 26 with the protective member 45, the core thread 26 can be protected from contact with the outside. In the present embodiment, the protective member 45 covers the circumference of the core thread 26 in the radial direction by 360 °, but if the core thread 26 can be sufficiently protected, for example, only a part of the core thread 26 (for example, the lower side). 180 °) may be covered.

In the present embodiment, as shown in FIG. 3, since the unwinding fulcrum portion 44 is arranged at a position higher than the supply portion 46, the protective member 45 moves down to the spinning unit 2 and downward as it approaches the downstream side. It is tilted to approach. In other words, the protective member 45 is arranged so as to be inclined so that the side close to the core yarn package holding portion 43 is high and the side close to the spinning unit 2 is low. By inclining the protective member 45, the height of the traveling path of the core thread 26 can be gradually lowered. Therefore, since the core thread 26 does not have to be bent so much, the core thread 26 can be guided toward the supply unit 46 without difficulty. Further, the orientation of the protective member 45 in the longitudinal direction may be different from that of the present embodiment. The protective member 45 may be omitted if the unwinding fulcrum 44 and the supply 46 are located close to each other, or if the core thread 26 is unlikely or less likely to interfere with another member or operator.

Further, the support portion 42, the core thread package holding portion 43, the unwinding fulcrum portion 44, and the protective member 45 are arranged at relatively high positions so as not to interfere with the operator passing through the operator passage 6. Specifically, these members are arranged at a position higher than the lower end of the draft device 12. Further, these members are preferably arranged at a height of, for example, 150 cm or more from the operator passage 6 so as not to interfere with the operator passing through the operator passage 6, and are placed above the operator's head passing through the operator passage 6. It is more preferable that the operator passage 6 is arranged at a height of, for example, 200 cm or more. However, if the positions of these members are set too high, the operator may have trouble replacing the core thread package 25, or the protective member 45 may interfere with the ball hoisting carriage 3. Therefore, it is preferable that these members are arranged at a position lower than the lower end of the ball-lifting carriage 3 (specifically, the ball-lifting carriage 3 in the running state). For example, a column 41 having a longer length than the configuration of FIG. 2 is adopted, and the core thread package holding portion 43, the unwinding fulcrum portion 44, and the protective member 45 are at higher positions (for example, these members are thread joints). It may be arranged at the same height as the device 17 or at a position higher than the thread splicing device 17.

As described above, the ball lifting device (movable member) included in the ball lifting cart 3 removes the package 24 from the winding device 18 and supplies a new winding pipe 24a to the winding device 18. While all of these operations are performed on the winding device 18, the core thread supply device 13 is arranged at a position lower than the lower end of the winding device 18. Therefore, the ball lifting device of the ball lifting carriage 3 and its operation locus do not interfere with the core thread supply device 13.

The supply unit 46 is arranged on the downstream side of the protective member 45. As shown in FIG. 4, the supply unit 46 is supported by the draft base 38 via the relay member 48. Further, the supply unit 46 is arranged at a position where it does not overlap with each roller pair of the draft device 12 and the draft cradle 37 in front view. With this configuration, the opening / closing locus of the draft cradle 37 and the supply unit 46 do not interfere with each other. The supply unit 46 supplies the core yarn 26 to the air spinning device 14 via the draft device 12. Specifically, the supply unit 46 includes a guide unit for guiding the core yarn 26 and a delivery unit for delivering the core yarn 26 by injecting compressed air or the like.

Although not shown, the supply unit 46 includes a tension applying device that applies tension to the core yarn 26, a detection device that detects the presence or absence of the core yarn 26, and a core yarn 26 before the core yarn 26 is delivered by the delivery unit. It may be provided with at least one of the slack giving portions that are temporarily slackened.

The angle adjusting portion 47 has a tapered shape in which the inner diameter becomes smaller as it approaches the downstream side. The core yarn 26 supplied by the supply unit 46 passes through the tubular angle adjustment unit 47 to adjust the traveling direction to a predetermined angle, and then the traveling path of the fiber bundle 22, specifically, the apron belt 33. It joins the position downstream from the front roller pair 35 and upstream from the front roller pair 35.

Hereinafter, the traveling path of the core yarn 26 that joins the traveling path of the fiber bundle 22 will be described in detail. The traveling path of the fiber bundle 22 refers to a path in which the fiber bundle 22 actually travels when the spinning machine 1 is operated. However, the traveling path of the fiber bundle 22 almost coincides with the straight line connecting the nip points (contact position or closest contact position between the top roller and the bottom roller) of each roller of the draft device 12. Therefore, the traveling path of the fiber bundle 22 can be calculated without operating the spinning machine 1. Further, the traveling path of the core yarn 26 refers to a route in which the core yarn 26 actually travels when the spinning machine 1 is operated. However, since the angle adjusting portion 47 is arranged in the vicinity of the front roller pair 35, the traveling path of the core thread 26 almost coincides with the axis line (and its extension line) of the angle adjusting portion 47. Therefore, the traveling path of the core yarn 26 can be calculated without operating the spinning machine 1.

Further, FIG. 4 shows a straight line L1 indicating the height of the center of rotation of the front top roller 35a. As is clear from FIG. 4, the confluence of the core yarn 26 and the fiber bundle 22 (intersection of the traveling path) is below the straight line L1. Furthermore, the core yarn 26 is located below the straight line L1 even in the vicinity of the confluence (for example, the upstream end of the angle adjusting portion 47). Therefore, the core thread 26 is less likely to wind around the front top roller 35a as compared with the path where the core thread 26 joins from above the straight line L1.

Further, as shown in FIG. 4, the angle formed by the traveling path of the fiber bundle 22 and the traveling path of the core yarn 26 at the confluence of the fiber bundle 22 and the core yarn 26 is defined as an angle a1. More specifically, the smaller angle (less than 180 °) of the angles formed by the two traveling paths extending upstream from the confluence is the angle a1. In order to more reliably prevent the above wrapping, the angle a1 is preferably, for example, 20 ° or more and 80 ° or less, and more preferably 40 ° or more and 60 ° or less. The traveling direction of the core thread 26 is closer to the horizontal direction than the vertical direction (in other words, the angle between the traveling direction and the horizontal direction of the core thread 26 is less than 45 °).

As shown in FIG. 5, in front view, a straight line drawn from the confluence of the fiber bundle 22 and the core yarn 26 so as to be parallel to the center of rotation of the front roller pair 35 is defined as a straight line L2. Further, the angle formed by the straight line L2 and the traveling path of the core thread 26 is referred to as an angle a2. More specifically, the smaller angle (180) of the traveling path of the core yarn 26 extending upstream from the confluence and the straight line L2 extending from the confluence to the side where the supply unit 46 is arranged. Less than °) is the angle a2. In order to properly supply the core yarn 26 while arranging the draft device 12 and the core yarn supply device 13 so as not to interfere with each other, the angle a2 is preferably, for example, 20 ° or more and 80 ° or less, and 40 ° or more and 60 °. The following is more preferable.

The air spinning device 14 produces the spun yarn 23 by spinning with the core yarn 26 supplied from the core yarn supply device 13 as the core side and the fibers of the fiber bundle 22 supplied from the draft device 12 as the sheath side. Specifically, the air spinning apparatus 14 generates a spun yarn 23 by causing a swirling air flow to act on the fiber bundle 22 and twisting the fibers of the fiber bundle 22 while winding them around the core yarn 26. To do.

The yarn monitoring device 15 monitors the thickness of the spun yarn 23 produced by the air spinning device 14 by an optical sensor (not shown). When the yarn monitoring device 15 detects a yarn defect of the spun yarn 23 (a portion having an abnormality in the thickness of the spun yarn 23 or the like), the yarn monitoring device 15 transmits a yarn defect detection signal to the unit controller (not shown). The yarn monitoring device 15 is not limited to the optical sensor, and may be configured to monitor the thickness of the spun yarn 23 with, for example, a capacitance type sensor. Further, the yarn monitoring device 15 may detect foreign matter contained in the spun yarn 23 as a yarn defect. When the yarn monitoring device 15 detects that the spinning yarn 23 does not meet the standard, the spinning unit 2 cuts the spinning yarn 23 by operating the cutter shown in the figure, stopping the air spinning device 14, or the like. To do. The thread monitoring device 15 may be arranged on the downstream side of the thread storage device 16 in place of or in addition to the upstream side of the thread storage device 16.

The yarn storage device 16 is a roller that can be rotated by a motor. A certain amount of spun yarn 23 can be wound around the yarn storage device 16 and temporarily stored. By rotating the yarn storage device 16 at a predetermined rotation speed with the spun yarn 23 wound around the yarn storage device 16, the spun yarn 23 can be pulled out from the air spinning device 14 at a predetermined speed and conveyed to the downstream side. it can. Further, since the spun yarn 23 can be temporarily stored in the yarn storage device 16, the yarn storage device 16 functions as a kind of buffer. This eliminates the problem that the spinning speed in the air spinning apparatus 14 and the winding speed (the speed of the spinning yarn 23 wound around the package 24) do not match for some reason (for example, slackening of the spinning yarn 23). Can be done.

In the yarn splicing device 17, when the spun yarn 23 between the air spinning device 14 and the package 24 is in a split state, the spun yarn 23 (first yarn) from the air spinning device 14 and the spinning from the package 24 are spun. The thread 23 (second thread) and the thread are spliced together. In the present embodiment, the yarn splicing device 17 is a splicer device that twists yarn ends with each other by a swirling air flow generated by compressed air. The thread splicing device 17 is not limited to the splicer device, and for example, a mechanical notter or the like can be adopted.

The spinning unit 2 includes a guide device that guides the spun yarn 23 to the yarn splicing device 17. The guide device includes a first guide device 61 that guides the first thread to the thread splicing device 17, and a second guide device 62 that guides the second thread to the thread splicing device 17.

The first guide device 61 can rotate in the vertical direction with the root portion as the center of rotation. The first guide device 61 is formed in a hollow shape and is connected to a blower (not shown) so that a suction air flow can be generated. When performing yarn splicing, the first guide device 61 rotates downward to capture the yarn end of the first yarn. After capturing the first thread, the first guide device 61 guides the first thread to the thread joining device 17 by rotating upward.

The second guide device 62 can rotate in the vertical direction with the root portion as the center of rotation. The second guide device 62 is also configured in a hollow shape and is connected to a blower (not shown) to generate a suction air flow. When performing yarn splicing, the second guide device 62 rotates upward to capture the yarn end of the second yarn. After catching the second thread, the second guide device 62 guides the second thread to the thread joint device 17 by rotating downward.

By driving the yarn splicing device 17 in a state where the first yarn and the second yarn are guided by the yarn splicing device 17, the first yarn and the second yarn are spliced, and the air spinning device 14 and the package 24 are combined. The spun yarn 23 is in a continuous state between them. As a result, the winding of the spun yarn 23 into the package 24 can be resumed.

The take-up device 18 is arranged at a position higher than the upper end of the draft device 12 and higher than the upper end of the air spinning device 14. The take-up device 18 includes a cradle arm 51 and a take-up drum 52.

The cradle arm 51 can rotatably support the take-up pipe 24a for winding the spun yarn 23. The cradle arm 51 is rotatable around its root portion. As a result, even if the spun yarn 23 is wound around the take-up pipe 24a and the diameter of the package 24 is increased, the winding of the spun yarn 23 can be continued appropriately.

The take-up drum 52 rotates in contact with the take-up pipe 24a or the outer peripheral surface of the package 24 by transmitting the driving force of the take-up drum drive motor (not shown). A twill groove shown in FIG. 1 is formed on the outer peripheral surface of the take-up drum 52, and the spun yarn 23 can be traversed with a predetermined width by the twill groove. As a result, the winding device 18 can form the package 24 by winding the spun yarn 23 around the winding pipe 24a while traversing it. Instead of traversing in the twill groove of the take-up drum 52, the spun yarn 23 may be traversed by a twill shake device provided separately from the take-up drum 52.

As described above, the take-up device 18 is arranged above the air spinning device 14, and the hoisting carriage 3 is located above the spinning unit 2 (higher than the center of the spinning unit 2) or above the spinning unit 2. The package 24 can be formed by arranging the core yarn supply device 13 at an appropriate position even in the layout of traveling.

Next, a first modification of the above embodiment will be described with reference to FIG. FIG. 6 is a side view of the periphery of the draft device 12 of the first modification. In the description of the first modification and the second modification described later, the same reference numerals may be given to the same or similar members as those in the above-described embodiment, and the description may be omitted.

In the above embodiment, the core yarn package 25 is arranged at a position horizontally separated from the spinning unit 2. On the other hand, in the first modification, the core yarn package 25 is arranged in the vicinity of the spinning unit 2. Specifically, the support portion 42 of the first modification is attached to the draft base 38 of the draft device 12. The support portion 42 includes a portion extending downward so that the core yarn package holding portion 43 is located below the lower end of the draft device 12 (the lower end of the back roller pair 31). As a result, the core thread package 25 can be held so that the end portion of the core thread package 25 on the unwinding side is lower than the height of the rotation center of the front top roller 35a (straight line L1). By arranging the core thread package holding portion 43 at a low position, the core thread package 25 can be arranged so that the unwinding side of the core thread package 25 faces upward (including substantially upward). Therefore, the horizontal size of the spinning machine 1 can be reduced.

Further, the core thread package holding portion 43 of this modified example is arranged at a height that makes it easy for the operator to replace the core thread package 25. Specifically, as shown in FIG. 6, the surface of the core thread package holding portion 43 that the lower surface of the core thread package 25 contacts is referred to as a contact surface 43a. The height from the contact surface 43a to the floor surface is referred to as height H. The height H is preferably 55 cm or more and 85 cm or less.

Similar to the above embodiment, the unwinding fulcrum portion 44 is supported by the support portion 42, and is arranged on an extension line in the axial direction of the core yarn package 25. The configuration, position, and support structure of the supply unit 46 are the same as those in the above embodiment. Further, the support portion 42, the core thread package holding portion 43, and the unwinding fulcrum portion 44 are positioned so as not to overlap each roller pair and the draft cradle 37 of the draft device 12 in the front view, similarly to the supply portion 46 of the above embodiment. It is located in. With this configuration, the opening / closing locus of the draft cradle 37 and each part of the core thread supply device 13 do not interfere with each other.

In the first modification, the support portion 42 is attached to and supported by the draft device 12, but may be attached and supported by another portion (for example, the frame 10) of the spinning unit 2.

Next, a second modification of the above embodiment will be described with reference to FIG. 7. FIG. 7 is a front view of the spinning machine 1 of the second modified example.

As described above, in the above embodiment, the supply unit 46 is arranged at a position where it does not overlap with each roller pair of the draft device 12 and the draft cradle 37 in front view. In other words, the supply unit 46 is arranged in the direction away from the draft cradle 37.

On the other hand, in this modification, all the supply units 46 are located on the same side (left side in FIG. 7) in the parallel direction with respect to the spinning unit 2. Therefore, a part of the supply unit 46 (the supply unit 46 on the right side of the set) is arranged at a position where it overlaps with at least one of each roller pair of the draft device 12 and the draft cradle 37 in front view. As a result, the position of the supply unit 46 with respect to the traveling path of the fiber bundle 22 can be made common to all the spinning units 2.

However, in the configuration of this modification, the draft cradle 37 interferes with a part of the supply unit 46, so that the draft cradle 37 cannot be opened and closed. Therefore, in this modification, a rail 49 for moving the supply unit 46 along the parallel direction of the spinning unit 2 is provided. As a result, the supply unit 46 can move from the spinning position that interferes with the opening / closing locus of the draft cradle 37 to the evacuation position that does not interfere with the opening / closing locus of the draft cradle 37. Therefore, the operator can perform equal maintenance of each roller of the draft device 12 by opening the draft cradle 37 after moving the supply unit 46 to the retracted position along the rail 49.

The features of the above-described embodiment, the first modification, and the second modification can be appropriately combined. For example, the feature of the above-described embodiment in which the core yarn package holding portion 43 and the like are arranged at a high position and the feature of the second modification in which the supply portion 46 can be moved may be combined. Further, the feature of the first modification in which the support portion 42 is supported by the spinning unit 2 and the feature of the second modification in which the supply portion 46 can be moved may be combined.

As described above, the spinning machine 1 of the above embodiment includes a spinning unit 2, a core yarn supply device 13, and a ball hoisting carriage 3. The core yarn supply device 13 guides the core yarn 26 and supplies the core yarn 26 to the spinning unit 2. The ball lifting trolley 3 travels above or above the spinning unit 2 and works on the spinning unit 2. The spinning unit 2 includes a draft device 12, an air spinning device 14, and a winding device 18. The draft device 12 includes a front roller pair 35, and drafts the sliver 21 to form a fiber bundle 22. The air spinning device 14 generates the spun yarn 23 from the core yarn 26 and the fiber bundle 22 supplied from the core yarn supply device 13. The winding device 18 is arranged above the air spinning device 14, and winds the spun yarn 23 to form the package 24. The core yarn supply device 13 is provided with the core yarn 26 so that the core yarn 26 joins the fiber bundle 22 at the same height or lower position as the rotation center of the front top roller 35a arranged at a higher position of the front roller pair 35. To guide you.

As described above, in the layout in which the take-up device 18 is arranged above the air spinning device 14 and the ball lifting carriage 3 runs above or above the spinning unit 2, the core yarn supply device 13 is arranged. Space is limited. However, by arranging the core thread supply device 13 as described above, the core thread 26 is less likely to wind around the front top roller 35a. Therefore, it is possible to generate the spun yarn 23 in which the fiber bundle 22 and the core yarn 26 are appropriately arranged.

In the spinning machine 1 of the above embodiment, when viewed in the axial direction of the front roller pair 35, the traveling path of the fiber bundle 22 conveyed by the draft device 12 and the core yarn 26 conveyed by the core yarn supply device 13. The angle a1 formed by the traveling path is 20 ° or more and 80 ° or less.

As a result, it is possible to generate a spun yarn 23 in which the core yarn 26 is less likely to be wound around the front top roller 35a and the fiber bundle 22 and the core yarn 26 are more easily arranged.

In the spinning machine 1 of the above embodiment, the core yarn supply device 13 includes a core yarn package holding portion 43, an unwinding fulcrum portion 44, and a support portion 42. The core thread package holding portion 43 holds the core thread package 25. The unwinding fulcrum portion 44 serves as an unwinding fulcrum of the core thread 26 unwound from the core thread package 25. The support portion 42 is supported by the floor or suspended from the ceiling at a position horizontally separated from the spinning unit 2, and supports the core yarn package holding portion 43 and the unwinding fulcrum portion 44.

As a result, the support portion 42 and the like of the core yarn supply device 13 are arranged apart from the spinning unit 2, so that a space can be formed around the spinning unit 2. Therefore, for example, a wide working space for the operator (for example, the operator passage 6) can be secured, and a large core thread package 25 can be arranged. Further, the core yarn supply device 13 can be easily added to the spinning machine 1 that does not have the core yarn supply device 13.

In the spinning machine 1 of the above embodiment, at least a part of the traveling path of the core yarn 26 from the core yarn package 25 (core yarn package holding portion 43) to the spinning unit 2 is at least outside the radial direction of the core yarn 26. A protective member 45 that covers a part thereof is provided.

Thereby, the core thread 26 can be protected. As a result, it is possible to prevent the trolley 3 and / or the operator from interfering with the core thread 26.

In the spinning machine 1 of the above embodiment, the protective member 45 is arranged below the lower end of the ball lifting carriage 3.

As a result, even if the trolley 3 travels, it does not come into contact with the protective member 45, so that the trolley 3 can be moved smoothly.

In the spinning machine 1 of the above embodiment, the protective member 45 is arranged so as to be inclined so that the side close to the core yarn package holding portion 43 is high and the side close to the spinning unit 2 is low.

As a result, a space can be secured around the core yarn supply device 13.

In the spinning machine 1 of the first modification, the core yarn supply device 13 includes a core yarn package holding portion 43, an unwinding fulcrum portion 44, and a support portion 42. The core thread package holding portion 43 is arranged so that the unwinding side of the core thread package 25 faces upward and the end portion of the core thread package 25 on the unwinding side is lower than the rotation center of the front top roller 35a. Holds the core yarn package 25 in. The unwinding fulcrum portion 44 serves as an unwinding fulcrum of the core thread 26 unwound from the core thread package 25. The support portion 42 supports the core yarn package holding portion 43 and the unwinding fulcrum portion 44.

As a result, the core yarn package 25 can be held by the core yarn package holding portion 43 in a state in which the core yarn 26 is oriented along the path of joining the fiber bundle 22.

In the spinning machine 1 of the first modification, the support portion 42 is attached to the spinning unit 2.

As a result, the size of the core yarn supply device 13 including the support portion 42 can be reduced.

In the spinning machine 1 of the first modification, the core yarn package holding portion 43 includes a contact surface 43a that contacts the lower end of the core yarn package 25, and the height from the floor to the contact surface 43a is 55 cm or more and 85 cm or less. is there.

As a result, the operator can be made to perform the replacement work, the confirmation work, and the like of the core thread package 25 in a reasonable posture.

In the spinning machine 1 of the above embodiment, the ball lifting cart 3 includes a ball lifting device for lifting a package formed by a winding unit. The core thread supply device 13 is arranged at a position that does not interfere with the ball lifting device (movable member) of the ball lifting carriage 3 and the operation locus of the ball lifting device.

As a result, even if the trolley 3 performs the work, it does not come into contact with the core thread supply device 13, so that the trolley 3 can smoothly perform the work.

In the spinning machine 1 of the second modification, a plurality of spinning units 2 are arranged side by side. The core yarn supply device 13 includes a supply unit 46 that supplies the core yarn 26 to the spinning unit 2. The two spinning units 2 arranged side by side include one openable and closable draft cradle 37. The supply unit 46 can move to a position that does not interfere with the opening / closing locus of the draft cradle 37.

As a result, interference between the draft cradle 37 and the core yarn supply device 13 can be prevented.

Although preferred embodiments and modifications of the present invention have been described above, the above configuration can be changed as follows, for example.

In the above embodiment, as the traveling work machine, the ball lifting trolley 3 provided with the ball lifting device for performing the ball lifting work has been described as an example, but the traveling work machine is used as a movable member in place of or in addition to the ball lifting device. It may be configured to include at least one of a thread catching device and a thread splicing device. The thread catching device is a device corresponding to the above-mentioned guide device. The thread splicing device is a device corresponding to the thread splicing device 17 described above. Further, when the traveling work machine is provided with the yarn catching device, the guide device can be omitted from the spinning unit 2. When the traveling work machine is provided with a yarn splicing device, the yarn splicing device 17 can be omitted from the spinning unit 2. Even when this type of movable member is provided, it is preferable that the movable member and the operation locus do not interfere with the core thread supply device 13.

The core thread supply device 13 may be provided so that the core thread package 25 is arranged between the position shown in FIG. 3 and the position shown in FIG. Further, for example, in the first modification, the core thread package holding portion 43 is configured to hold the core thread package 25 so that the axial direction of the core thread package 25 is not perpendicular to the floor surface but is inclined. It may have been done.

In the above embodiment, the top roller of the draft device 12 of the two spinning units 2 arranged side by side is attached to one draft cradle 37. Instead of this, a draft cradle 37 may be provided for each spinning unit 2, and the top roller may be independent for each spinning unit 2.

The spinning device is not limited to the air spinning device 14. Therefore, the spinning machine 1 can be changed to a spinning machine (for example, a ring spinning machine, an open-end spinning machine) provided with another type of spinning machine.

The spinning machine 1 is not provided with the yarn splicing device 17, and the spun yarn 23 of the package 24 is run backward into the air spinning device 14, and the draft operation by the draft device 12 and the spinning operation by the air spinning device 14 are restarted. It may be configured to resume the winding of 24. That is, the spinning machine 1 may put the spun yarn 23 that has been divided into a continuous state by piecing.

The spinning unit 2 may include a delivery roller and a nip roller in place of the yarn storage device 16 or in addition to the yarn storage device 16, and may be configured to draw the spun yarn 23 from the air spinning device 14 by the roller pair. ..

In the above embodiment, the ball hoisting carriage 3 is configured to carry out the work of hoisting the fully wound package 24 from the winding device 18 and the work of supplying the empty winding pipe 24a to the winding device 18. Has been done. The traveling work machine may be configured to perform only one of the operations.

1 Spinning machine 2 Spinning unit 3 Ball trolley (running work machine)
12 Draft device 13 Core yarn supply device 14 Air spinning device (spinning device)
18 Winding device 42 Support part 43 Core thread package holding part 44 Unwinding fulcrum part 45 Protective member 46 Supply part

Claims (11)

With the spinning unit
A core yarn supply device that guides the core yarn and supplies the core yarn to the spinning unit,
A traveling work machine that travels on or above the spinning unit and performs work on the spinning unit.
With
The spinning unit
A draft device that includes a pair of front rollers to draft a sliver into a fiber bundle,
A spinning device that produces spun yarn from the core yarn supplied from the core yarn supply device and the fiber bundle, and
A winding device that is arranged above the spinning device and that winds the spun yarn to form a package.
With
The core yarn supply device guides the core yarn so that the core yarn joins the fiber bundle at the same height or lower position as the rotation center of the front top roller arranged at a higher position among the front roller pairs. A spinning machine characterized by The spinning machine according to claim 1.
When viewed in the axial direction of the front roller pair, the angle formed by the traveling path of the fiber bundle conveyed by the draft device and the traveling path of the core yarn conveyed by the core yarn supply device is 20. A spinning machine characterized by having a temperature of ° or more and 80 ° or less. The spinning machine according to claim 1 or 2.
The core yarn supply device is
The core thread package holding part that holds the core thread package and
An unwinding fulcrum portion that serves as an unwinding fulcrum of the core yarn unwound from the core yarn package,
A support portion that is supported by the floor or suspended from the ceiling at a position horizontally separated from the spinning unit and supports the core yarn package holding portion and the unwinding fulcrum portion.
A spinning machine characterized by being equipped with. The spinning machine according to claim 3.
A spinning machine characterized in that at least a part of the traveling path of the core yarn from the core yarn package holding portion to the spinning unit is provided with a protective member that covers at least a part of the outer side in the radial direction of the core yarn. The spinning machine according to claim 4.
The spinning machine is characterized in that the protective member is arranged below the lower end of the traveling work machine. The spinning machine according to claim 5.
The spinning machine is characterized in that the protective member is arranged so as to be inclined so that the side close to the core yarn package holding portion is high and the side close to the spinning unit is low. The spinning machine according to claim 1 or 2.
The core yarn supply device is
A core that holds the core thread package so that the unwinding side of the core thread package faces upward and the end of the unwinding side of the core thread package is lower than the rotation center of the front top roller. Thread package holder and
An unwinding fulcrum portion that serves as an unwinding fulcrum of the core yarn unwound from the core yarn package,
A support portion that supports the core yarn package holding portion and the unwinding fulcrum portion, and a support portion.
A spinning machine characterized by being equipped with. The spinning machine according to claim 7.
The supporting portion is a spinning machine characterized in that it is attached to the spinning unit. The spinning machine according to claim 7 or 8.
The spinning machine is characterized in that the core yarn package holding portion includes a contact surface that contacts the lower end of the core yarn package, and the height from the floor to the contact surface is 55 cm or more and 85 cm or less. The spinning machine according to any one of claims 1 to 9.
The traveling work machine joins a ball lifting device for lifting the package formed by the winding device, a thread catching device for catching the spun yarn of the spinning unit, and the spun yarn of the spinning unit. At least one of the thread splicing devices is provided as a movable member,
The spinning machine is characterized in that the core yarn supply device is arranged at a position that does not interfere with the movable member of the traveling work machine and the operation locus of the movable member. The spinning machine according to any one of claims 1 to 10.
A plurality of the spinning units are arranged side by side, and the spinning units are arranged side by side.
The core yarn supply device includes a supply unit that supplies the core yarn to the spinning unit.
The two spinning units placed side by side have one draft cradle that can be opened and closed.
The spinning machine is characterized in that the supply unit can be moved to a position that does not interfere with the opening / closing locus of the draft cradle.

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