JP3630108B2 - Winder with fuzz control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a winder such as an automatic winder equipped with a spun yarn fluff control device using a plurality of disks.
[0002]
[Prior art]
A spinning bobbin (an example of a yarn feeding package) wound with a spun yarn produced by a ring spinning machine is conveyed to an automatic winder (an example of a winder). In this automatic winder, a spun yarn wound around a ring-spun bobbin is removed, and the spun yarns of a large number of spun bobbins are joined together to be wound around a corn or cheese-like winding package.
[0003]
The rewinding process by the automatic winder is a process in which tension is applied to the spun yarn unwound from the fine spinning bobbin, and the spun yarn is rewound through a number of yarn guides to form a package. Accordingly, the spun yarn formed by twisting the short fibers is rubbed every time it passes through the yarn guide and the fluff existing in the spun yarn of the fine spinning bobbin before rewinding tends to increase after rewinding.
[0004]
For this reason, in a rewinding process in a winder such as an automatic winder, a fluff control device is provided in the yarn traveling path to suppress the occurrence of fluff. This fluff control device is provided with a plurality of friction disks, and by spinning the plurality of disks, false spinning is performed on the spun yarn traveling at the working position, and the fluff protruding from the surface of the spun yarn constitutes the spun yarn. There is a multi-disk type that performs fluffing treatment by being wound around fibers.
[0005]
[Problems to be solved by the invention]
However, it has been found that in the winding machine using the multi-disk type fluff control device, the yarn is often wound around the disk after the splicing process, and the spinning yarn winding process is interrupted. It was.
[0006]
The present invention has been made in view of the above problems, and an object thereof is to provide a winder equipped with a fluff control device capable of suppressing the occurrence of winding of a spun yarn after a splicing process around a disk. To do.
[0007]
[Means for Solving the Problems]
A winding machine equipped with a fluff control device according to claim 1 of the present invention has a plurality of disks that rotate in contact with a spun yarn unwound from a yarn supply package and wound on the winding package. In a winding machine provided with a fluff control device that controls the fluff of the spun yarn by rotation of the yarn, and a yarn splicing device that connects the spun yarn of the yarn feeding package and the spun yarn of the winding package. A confirmation unit for confirming the success of the splicing process is provided, and a control unit is provided for starting rotation of the plurality of disks that have been stopped at the time of the splicing process after the confirmation unit confirms that the splicing process is successful. It is characterized by that.
Analyzing the phenomenon of the yarn wound around the disk, it was found that most of the yarn wound around the disk after the yarn splicing process that occurs when the yarn supply package is replaced or when the yarn breaks, etc. It was found that it sometimes occurs. In other words, during the splicing process that is performed when replacing the yarn supply package or when the spun yarn is forcibly cut by detecting a yarn defect in the slab catcher, the rotation of the disk is stopped for energy saving. It has been found that if the disc is rotated in a state where the splicing process is not successful, that is, in a state where the spun yarn is not connected, the spun yarn is wound around the rotating disc. At the beginning of development, the problem was not noticed, and the yarn was run after the splicing process, but for the purpose of suppressing fluff, the disc was rotated before running the yarn. This is because it was considered preferable to start the rotation. Therefore, after confirming the success of the splicing process, that is, after confirming that the spun yarn on the yarn supply package side and the spun yarn on the take-up package side are connected, the splicing process is started. It becomes possible to prevent the spun yarn from being wound around the disk later. Further, it is not necessary to operate the disk wastefully.
[0008]
A winding machine having a fluff control device according to a second aspect of the present invention is the winding machine according to the first aspect, further comprising a yarn pushing guide for pushing the spun yarn into operating positions of the plurality of discs, and the control unit includes the yarn pushing guide. The pushing operation according to is started after the confirmation of the success of the yarn splicing process by the confirmation means.
Thereby, it is not necessary to operate the thread pushing guide wastefully.
[0009]
The winding machine provided with the fluff control device according to claim 3 of the present invention is the winding machine according to claim 1 or 2, wherein the confirmation that the splicing process of the spun yarn by the confirmation unit has been successful is performed. The controller is configured to confirm that the spun yarn travels by rotating a drum that rotates the spun yarn, and after the travel of the spun yarn is confirmed by the confirmation unit, the control unit until the travel speed of the yarn reaches a set speed. During this period, the rotation of the plurality of disks is started.
Thereby, since the rotation of the disk is started at a low speed when the traveling speed of the yarn does not reach the set speed, that is, at a low speed where the generation of fluff is relatively small, while preventing the yarn from being wound around the disk at the start of the traveling of the yarn, Fluff generation can also be suppressed. In addition, confirmation that the yarn splicing process has been successful and yarn traveling confirmation can be performed simultaneously. In this case, it is preferable to increase the rotational speed of the disk to the set rotational speed before the yarn traveling speed reaches the set speed.
[0010]
According to a fourth aspect of the present invention, there is provided a winding machine provided with the fluff control device according to the first aspect, wherein a yarn pushing guide for pushing the spun yarn into the working position of the plurality of disks is provided, and the yarn splicing process by the confirmation means Is confirmed by confirming that the spun yarn travels by rotating a drum that rotates the winding package, and the control unit confirms that the spun yarn travels by the confirmation unit. The pushing operation by the yarn pushing guide is started until the running speed of the yarn reaches a set speed.
As a result, the spun yarn can be pushed into the operating position of the disk during low speed running, that is, when the yarn tension is relatively small, and the pushing force of the yarn pushing guide can be reduced.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
A winder equipped with a spun yarn fluff control device according to an embodiment of the present invention will be described with reference to FIGS.
[0012]
The fluff control device 1 shown in FIG. 1 is provided in an automatic winder (winding machine) 31A including a yarn joining device 33, and is unwound from a spinning bobbin (yarn supply package) B and wound on a winding tube Bf. A false twist is applied to the spun yarn Y wound as P, and the spun yarn Y is twisted into the fiber group constituting the spun yarn Y. Further, the fluff suppressing device 1 is adapted to apply a feeding force to the spun yarn Y at the same time.
[0013]
A winding machine 31A shown in FIG. 1 is arranged in the winding direction of the spun yarn Y of the yarn supplying package B in the tension applying device that also serves as the twisting device 4, the false twisting device 2, the yarn joining device 33, the slab catcher 36, and the drive drum D. Are arranged in order, and a control unit 40 for controlling these devices is further provided. The yarn joining device 33 performs a yarn joining process for joining the spun yarn on the separated yarn supplying package B side and the spun yarn on the take-up package P side. A lower yarn suction guide member that guides the spun yarn on the yarn package side to the yarn joining device main body, and an upper yarn suction guide member that guides the spun yarn on the winding package side to the yarn joining device main body. The driving drum D is configured as a traverse drum having a traverse groove, and rotates the winding package P in contact with the winding package P and traverses the spun yarn wound around the winding package P.
[0014]
The slab catcher 36 is, for example, a capacitance type or optical type yarn thickness detecting device, and detects a yarn defect such as a slab by processing a signal from the slab catcher 36 with an analyzer 39. When a yarn defect is detected, the spun yarn Y being wound up is cut by a cutter (not shown), the defective portion is removed during the yarn joining process by the yarn joining device 33, and then the yarn joining device B side of the yarn feeding package B is removed. The spun yarn and the spun yarn on the winding package P side are spliced together.
[0015]
When the drive drum D rotates with the spun yarn Y connected between the yarn supply package B and the winding package P, the spun yarn of the yarn supply package B is wound around the winding package P, and the spun yarn Y is lowered. Drive up from the top. When the spun yarn Y travels, the yarn thickness variation is detected by the slab catcher 36. When this is detected, the slab catcher 36 outputs a yarn travel signal FW to the control unit 40. When the spun yarn Y is cut between the yarn supply package B and the winding package P, the spun yarn Y does not travel, so the yarn travel signal FW from the slab catcher 36 is not output. When the drive drum D is rotated, if the spun yarn Y is connected, the yarn traveling signal FW is output, so that the spun yarn of the yarn supply package B is exhausted and replaced with a new yarn supply package B. When the yarn defect is detected by the slab catcher 36 and the yarn is forcibly cut, the yarn joining process is performed by the yarn joining device 33. When the driving drum D is rotated after the yarn joining process, the yarn joining process is successful. When this occurs, the yarn traveling signal FW is output. Conversely, when the yarn splicing process fails, the yarn traveling signal FW is not output. Therefore, by confirming the output of the yarn traveling signal FW (confirming that the spun yarn Y travels by rotating the drive drum D), it can be confirmed that the yarn splicing process has been successful. The yarn traveling signal FW is confirmed by the control unit 40. As described above, the slab catcher 36 and the control unit 40 constitute confirmation means for confirming that the spliced yarn Y has been successfully spliced.
[0016]
The fluff control device 1 is disposed in the yarn traveling path between the drive drum D that rotates the winding package P and the yarn supplying package B, and below the yarn joining device 33 (upstream in the yarn traveling direction). The false twisting device 2, the yarn pushing guide 3 that also functions as a yarn holding guide, and the twisting prevention device 4.
[0017]
As shown in FIGS. 2 and 3, the false twisting device 2 includes a plurality of (six in the illustrated example) friction disks 5, three first to third shafts 6 to 8, and a block body 9. The support 10 is provided. A plurality of each disk 5 is provided on each of the first to third shafts 6 to 8 (two in the illustrated example). The first to third shafts 6 to 8 are pivotally supported between a block body 9 and a support body 10 arranged on the downstream side and the upstream side in the yarn traveling direction, and a drive motor (not shown) on the block body 9 side. , And simultaneously rotated by a belt. The first to third shafts 6 to 8 are respectively provided at the apexes a to c of the equilateral triangle as viewed from above so as to be parallel to the yarn path, and the discs 5 having different axes are partially separated in the radial direction. (See FIG. 2). The discs 5 of the first to third shafts 6 to 8 are axially arranged in the order of the third shaft 8, the second shaft 7, the first shaft 6, the third shaft 8, the second shaft 7, and the first shaft 6 from below. (See FIG. 3).
[0018]
The false twisting device 2 is passed through the central portion A between the disks 5 by rotating the first to third shafts 6 to 8 in the same direction, and zigzags in contact with the peripheral surface of each disk 5. The bent spun yarn Y is subjected to false twist of S twist or Z twist. Further, due to the shape in the yarn traveling direction of the peripheral surface of the disk 5 that the spun yarn Y contacts, a component component of the rotational force of the disk 5 is generated downstream of the spun yarn Y in the yarn traveling direction. . For this reason, the false twisting device 2 sends the spun yarn Y to the winding package P side simultaneously with the false twist. Here, the central portion A is an inner portion of the intersections d to f of the peripheral surfaces of the disks 5 of two different shafts that partially overlap in the radial direction of the first to third shafts 6 to 8 (three different shafts). (A common overlapping portion of the disc 5) (see FIG. 2). Reference numerals 11 and 12 denote thread guides provided on the block body 9 and the support body 10.
[0019]
As shown in FIGS. 2 and 3, the yarn pushing guide 3 is provided in the false twisting device 2 and includes three yarn pushing levers 13 to 15 and a support bracket 16. The three pushing levers 13 to 15 are supported by the support bracket 16 and are arranged at intervals in the axial direction of the first to third shafts 6 to 8 (see FIG. 3). A guide groove 18 that captures and holds the spun yarn Y is provided at the tip of each of the yarn pushing levers 13 to 15. The support bracket 16 is supported by the drive shaft 17, and the rotation of the drive shaft 17 causes the thread push-in levers 13 to 15 to move away from the disk 5 as indicated by a solid line in FIG. Advancing and retreating with respect to an operation position for holding the spun yarn Y at the center A between the disks 5 indicated by a chain line. The yarn pushing levers 13 to 15 capture the spun yarn Y located between the yarn pushing levers 13 to 15 and the false twisting device 2 while moving from the non-acting position to the acting position, and thereby the first shaft 6. And the second shaft 7 so as to get over the respective disks 5 and hold the spun yarn Y at the center A (operation position) between the disks 5.
[0020]
The tensioning device 4 serving as a tension applying device is a gate type device that is arranged between the false twisting device 2 and the yarn feeding package B, and in which movable comb teeth 42 are alternately arranged with respect to fixed comb teeth 41. is there. The twist prevention device 4 restricts the propagation of twist to the yarn feeding package B side by the false twist device 2, and zigzags the spun yarn Y passed between the fixed comb teeth 41 and the movable comb teeth 42. It acts to apply a predetermined tension to the spun yarn by the urging force applied to the movable comb teeth 42 so as to be bent. Note that members for fixing the comb teeth 41 and means for supporting and biasing the comb teeth 42 are omitted in the drawing.
[0021]
The control unit 40 performs drive control of the drive drum D, drive control of the fluff control device 1 (rotation control of the disk 5, drive control of the yarn pushing guide 3), and drive control of the yarn joining device 33. As shown in FIG. 4, when the driving drum D is rotated after the yarn splicing and the yarn traveling signal is transmitted from the slab catcher 36, the rotation of the friction disk 5 of the fluff control device 1 is started immediately and the yarn is pushed in. The guides 13 to 15 are operated. That is, the control unit 40 confirms whether or not the splicing process of the spun yarn is successful, and after confirming that the splicing process is successful, controls the rotation of the disks 5 so as to start the rotation of the plurality of disks 5. To do. Further, the control unit 40 drives and controls the yarn pushing guide 3 so as to start the pushing operation of the spun yarn between the plurality of discs 5 by the yarn pushing guides 13 to 15 almost simultaneously with the start of the rotation of the plurality of discs 5.
[0022]
Next, the operation of the fluff control device 1 will be described with reference to FIG.
FIG. 1 shows a state in which the spun yarn Y is wound up, that is, a state in which the spun yarn Y is connected between the yarn supply package B and the take-up package P. Will be described after the yarn supply package B is replaced, that is, after forced cutting of the spun yarn Y by detecting a yarn defect of the slab catcher or after natural yarn breakage due to high tension or the like. At this time, the rotation of the disk 5 is stopped and the thread pushing guide 3 is in the non-operating position.
[0023]
After replacement of the yarn supply package B or after forced cutting of the spun yarn Y by detecting a yarn defect of the slab catcher or after natural yarn breakage due to high tension or the like, the spliced yarn Y is spliced by the splicing device 33. In order to detect whether the splicing process of the spun yarn Y is successful, that is, whether the spun yarn Y is connected, the drive drum D is rotated. Further, until it is confirmed that the splicing process is successful and the spun yarn Y is connected, the rotation of each disk 5 is not started, and the yarn pushing guide 3 is maintained in a non-operating state (see FIG. 2: solid line) (see FIG. 2). # 1 in 4). Therefore, in a state where the spun yarn Y is not connected, the rotation of each disk 5 is not started.
[0024]
Here, whether or not the spun yarn Y is connected is confirmed by rotating the drive drum D while the spun yarn Y is connected, while the spun yarn Y runs, but when the spun yarn Y is not connected, the drive drum The fact that the spun yarn Y does not travel even when D is rotated is performed based on the yarn travel signal corresponding to the electrical signal detected by the slab catcher 36. When the spun yarn Y travels, that is, when a yarn travel signal is input from the slab catcher 36 to the control unit 40, it is determined that the spun yarn Y is connected, and when the spun yarn Y does not travel, that is, the yarn When the running signal is not input, it is determined that the spun yarn Y is not connected. Thus, since it is determined whether or not the spun yarn is connected according to the traveling state of the spun yarn Y, it can be reliably determined whether or not the spun yarn is connected by the yarn splicing process.
[0025]
Substantially simultaneously when the yarn traveling signal is inputted, that is, when it is confirmed that the spun yarn Y is connected and the spun yarn Y has started traveling (# 2 in FIG. 4), each disk 5 is moved in the same direction. While starting to rotate, the yarn pushing guide 3 pushes the spun yarn Y between the disks 5, that is, by turning the yarn pushing levers 13 to 15 of the yarn pushing guide 3, to rotate the spun yarn Y in each guide groove 18. Is started, and the operation of pushing and holding the spun yarn Y into the central portion A between the disks 5 of the first to third shafts 6 to 8 is started.
[0026]
Here, when the disc 5 is not rotating, the contact resistance between the spun yarn Y and the disc 5 is large, and if the spun yarn Y is pushed between the discs 5 by the yarn pushing guide 3, the spun yarn Y may be stretched out. For this reason, the spun yarn Y is pushed between the disks 5 while rotating the disks 5 at a low speed. In the present embodiment, the timing for starting the rotation of the disc 5 and the timing for starting the pushing operation of the spun yarn Y between the discs 5 by the yarn pushing guide 3 are made simultaneously, but the spun yarn Y is put between the discs 5. It takes time to turn each of the yarn pushing levers 13 to 15 until it is pushed in. For this reason, even when the respective timings are simultaneously performed, when the spun yarn Y is pushed between the discs 5, the respective discs 5 are already at low speed. As a result, the spun yarn Y can be prevented from being broken. By simultaneously performing the above timings, the control at the start of pushing the spun yarn Y between the disks 5 by the yarn pushing guide 3 becomes easy.
[0027]
The controller 40 increases the rotational speed of the drive drum D with a linear gradient until the rotational speed of the drive drum D reaches the rotational speed C1 corresponding to the set yarn traveling speed (set winding speed), and the rotational speed of the disk 5. Increases the rotational speed of the disk 5 with a linear gradient until it reaches the set rotational speed C2 (# 3 in FIG. 4).
[0028]
In the present embodiment, in order to obtain a sufficient fluffing effect when the rotational speed of the drive drum D reaches the set speed C1, the disk is rotated before the rotational speed of the drive drum D becomes C1. The rotational speed of 5 is set to C2.
[0029]
After the rotational speeds of the drive drum D and the disk 5 become C1 and C2, respectively, the respective rotational speeds are kept constant, and the spun yarn Y is wound around the winding package P (# 4 in FIG. 4). After the running of the spun yarn Y is stabilized, the yarn pushing levers 13 to 15 of the yarn pushing guide 3 are turned away from the disk 5 and moved to the non-operating position, and the spun yarn Y is released from the yarn pushing guide 3. (Refer to # 5 in FIG. 4, see FIG. 2: solid line).
[0030]
When the yarn traveling signal is not input due to yarn breakage or the like, that is, when the spun yarn Y does not travel, the control unit 40 controls the driving drum D and the disc 5 so that the driving drum D and the disc 5 are stopped. (# 6 in FIG. 4).
[0031]
As described above, according to the winder 31A according to the embodiment of the present invention, whether or not the yarn splicing process is successful (spun yarn Y has traveled) is confirmed by the yarn traveling signal, and the yarn splicing process is successful. The disk 5 is not rotated until it is confirmed that the spun yarn Y has traveled, and after the spun yarn Y has been confirmed that the splicing process has succeeded (the spun yarn Y has traveled) has traveled. Since the rotation is started, it is possible to suppress winding of the spun yarn Y around the disk 5 that occurs when the splicing process fails. Further, the disk 5 is not unnecessarily rotated.
[0032]
Furthermore, since it is confirmed that the splicing process is successful (the spun yarn Y has traveled), the spun yarn Y is pushed between the disks 5 by the yarn push guide 3, so that the yarn push guide 3 becomes unnecessary. It is prevented from operating. In addition, since the disk 5 is rotated immediately after confirming the success of the yarn splicing process and the yarn pushing-in operation is performed by the yarn pushing guide 3, the fluffing is performed early after the spun yarn Y runs, that is, when the yarn running speed is low. Processing will be started. When the yarn traveling speed (winding speed) is low, the generation of fluff due to the rewinding of the spun yarn Y is relatively difficult to occur. it can. The yarn pushing guide 3 can be omitted by changing the structure of the false twisting device 2. For example, by making the second shaft 7 openable and closable with respect to the other shafts 6 and 8, the spun yarn Y can be easily introduced into the central portion A between the disks 5 during the splicing process.
[0033]
【The invention's effect】
The winding machine provided with the fluff control device according to claim 1 is provided with a confirmation means for confirming the success of the yarn joining process by the yarn joining device, and after confirming that the yarn joining process is successful by the confirmation means, Since a control unit is provided to start the rotation of multiple disks that were stopped during processing, the spun yarn can be prevented from being wound around the disk after the splicing process, and the disk is wasted. There is an effect that it is not necessary to operate.
[0034]
In the winding machine equipped with the fluff control device according to claim 2, the control unit starts the pushing operation by the yarn pushing guide after the confirmation of the success of the yarn splicing process by the checking means. There is an effect that it is not necessary to operate.
[0035]
In the winding machine equipped with the fluff control device according to claim 3, the control unit starts rotating a plurality of disks after the confirmation of the traveling of the spun yarn by the confirmation means until the yarn traveling speed reaches the set speed. Therefore, when the running speed of the yarn does not reach the set speed, the rotation of the disk is started at a low speed with relatively little occurrence of fluff, and at the start of running the yarn, while preventing the yarn from being wound around the disk, Fluff generation can be suppressed, and it is possible to confirm that the yarn splicing process has been successful and to confirm the yarn running at the same time.
[0036]
The winding machine provided with the fluff control device according to claim 4, wherein the controller pushes in the pushing-in by the yarn pushing-in guide after the running check of the spun yarn by the checking means until the yarn running speed reaches the set speed. Since the operation is started, the spun yarn can be pushed into the operating position of the disk during low speed running with a relatively low yarn tension, and the pushing force of the yarn pushing guide can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a winder equipped with a fluff control device of the present invention.
FIG. 2 is a view taken in the direction of arrows EE in FIG.
3 is a view taken along the line FF in FIG. 1. FIG.
FIG. 4 is a time chart for explaining the operation of the winder equipped with the fluff control device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fluff control device 2 False twisting device 3 Yarn push-in guide 4 Twist prevention device 5 Disk 6 1st shaft 7 2nd shaft 8 3rd shafts 13-15 Yarn push-in lever Y Spinning yarn

Claims (4)

A fluff control device that has a plurality of disks that come into contact with and rotate with the spun yarn that is unwound from the yarn supply package and wound into the take-up package, and controls the fluff of the spun yarn by the rotation of the plurality of disks, and the yarn supply package In the winding machine provided with a yarn splicing device for connecting the spun yarn of this winding and the spun yarn of the winding package, a confirmation means for confirming the success of the yarn splicing process by the yarn splicing device is provided, and this confirmation means A winder equipped with a fluff control device, comprising: a controller that starts rotation of the plurality of disks that have been stopped during the yarn splicing process after confirming that the process has succeeded. A yarn pushing guide for pushing the spun yarn into the operation positions of the plurality of disks is provided, and the control unit starts the pushing operation by the yarn pushing guide after the confirmation of the success of the yarn splicing process by the confirmation unit. A winder comprising the fluff control device according to claim 1. Confirming that the splicing process of the spun yarn by the confirmation means has been successful is performed by confirming that the spun yarn travels by rotating a drum that rotates the winding package, 3. The fluff control device according to claim 1, wherein the fluff control device starts rotation of the plurality of discs after the running check of the spun yarn by the checking means until the running speed of the yarn reaches a set speed. Winding machine. The spun yarn is provided with a yarn pushing guide for pushing the spun yarn into the operating positions of the plurality of discs, and the spinning means rotates the drum for rotating the winding package to confirm that the yarn splicing process is successful by the confirmation means. The controller is configured to check the traveling of the spun yarn by the confirmation means and before the traveling speed of the yarn reaches a set speed. 2. A winder equipped with a fluff control device according to claim 1, wherein a pushing operation is started.

Images