JP3972618B2 - Yarn winder with yarn splicing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a yarn winding machine including a winding unit that pulls up a yarn to be unwound from a yarn winding body and winds it on a winding winding body, and more specifically, a yarn winding machine including a yarn joining device. Related to the machine.
[0002]
[Prior art]
In a yarn winding machine provided with a plurality of winding units that continuously pulls up a yarn unwound from several to several tens of yarn winding bodies, winds them around a winding tube, and uses them as winding winding bodies In the winding, a defective portion such as a slab or a nep existing in the middle of the yarn is detected and removed. In such a case, after removing these defective portions, it is necessary to perform a yarn splicing operation to join the cut yarns. Therefore, in a normal yarn winding machine, a yarn splicing device that connects the yarn end on the yarn supply winding body side and the yarn end on the winding winding body side is provided.
[0003]
Such yarn splicing operation is performed by catching the yarn end on the take-up winding body side, and then pulling out the yarn end to guide the upper yarn catching guide means, and after catching the yarn end on the yarn supply winding body side, The yarn ends of the upper thread (winding and winding thread body side) and the lower thread (yarn feeding thread body side) are guided and connected to the yarn joining device by the lower thread catching and guiding means for pulling out and leading out. It is common.
[0004]
The yarn joining device includes a yarn joining nozzle that injects air acting on the yarn in the yarn joining device, and is guided into the yarn joining device by the upper yarn catching guide means and the lower yarn catching guide means. A yarn splicing device (air splicer) is often used in which both yarn ends are twisted and joined using a swirling air flow by a yarn splicing nozzle.
[0005]
In this yarn joining device, all the operations such as the clamping operation of the upper yarn end and the lower yarn end and the cutting operation of the tip portions of both yarn ends are usually performed as a series of operations by the rotation of the common yarn joining cam. Is called. And about the yarn splicing nozzle including the untwisting nozzle that twists each of the upper yarn end and the lower yarn end, and the twisting nozzle that twists the upper yarn end and the lower yarn end by generating a swirling air flow Also, the compressed air is injected / stopped by using the mechanical valve that is opened and closed by the rotation of the yarn joining cam.
[0006]
[Problems to be solved by the invention]
However, in the conventional yarn winding machine provided with the above-described yarn joining device, when it is not necessary to perform air injection at the yarn joining nozzle during the yarn joining operation, for example, the upper yarn catching guide means Even when the upper yarn has failed to be caught when the spout is performed and the spout has not been performed normally, the compressed air is jetted from the untwisting nozzle and the twisting nozzle. For this reason, when the spout operation fails, useless compressed air is consumed. Further, for example, when the yarn is drawn out in a state in which two yarn ends on the winding side are aligned, the two yarns are connected as they are to the lower yarn, and the joint may be mixed into the winding yarn body. .
[0007]
The present invention has been made in view of the above-described circumstances, and while suppressing wasteful consumption of compressed air, yarn splicing can be performed in an abnormal state and winding can be prevented from being started as it is. The purpose is to provide a yarn winder.
[0008]
[Means for Solving the Problems]
  In order to solve the above-mentioned problem, a yarn winding machine according to claim 1 is provided with a winding unit that includes a winding unit that pulls up the yarn unwound from the yarn winding body and winds it up to the winding body. The winding unit includes a yarn joining device that connects yarn ends drawn from the yarn winding body side and the winding winding body side, and a yarn on the winding winding body side during yarn joining operation. A winding-side outlet sensor for detecting whether or not the outlet operation for capturing and pulling the end is normally performed; a yarn joining nozzle for injecting a fluid acting on the yarn in the yarn joining device; and the yarn A solenoid valve that switches between injecting and stopping fluid by the relay nozzle;A yarn thickness detector for detecting whether or not the thickness of the yarn passing through the detection region is normal, disposed on a yarn path between the yarn supply winding body and the winding winding body; Zero point adjustment means for adjusting the zero point of the thread thickness detector;Detection result of the winding side outlet sensorAnd the zero point adjustment result of the thread thickness detectorAnd a control means for switching the electromagnetic valve based on the above.
[0009]
  According to this configuration, when the yarn end operation is performed in which the yarn end on the winding winding body side is caught by the upper yarn catching guide unit or the like and then pulled out and guided to the yarn joining device during the yarn joining operation, the dispensing operation is performed. A winding-side outlet sensor is provided for detecting whether the yarn is passing through the yarn path formed when successful. Then, by detecting the presence / absence and / or thickness of the yarn on the yarn path by the winding side outlet sensor, it is possible to grasp whether or not the outlet operation of the winding yarn side yarn end has been normally performed. Based on the detection result of the take-up side outlet sensor, the switching of the fluid (compressed air, etc.) injection / stop by the yarn joining nozzle of the yarn joining device is controlled. It is possible not to inject compressed air or the like. Therefore, a yarn winder that suppresses unnecessary consumption of compressed air or the like can be obtained.
  Further, according to this configuration, in addition to the detection result of the winding side outlet sensor, the zero point adjustment result of the yarn thickness detector disposed on the yarn path between the yarn supply winding body and the winding winding body Based on the above, the injection / stop of fluid (compressed air or the like) by the yarn joining nozzle of the yarn joining device is controlled. Therefore, it is possible to obtain a yarn winder that suppresses wasteful consumption of compressed air and the like, and it is possible to prevent wasteful yarn cutting. That is, because the zero point adjustment has not been performed, the winding thickness is resumed while the zero point of the yarn thickness detection value is out of order, so that the yarn thickness detection value deviates from the actual thickness, A normal thickness portion is recognized as a yarn thickness defect, and the yarn can be reliably prevented from being cut.
[0010]
  A yarn winding machine according to claim 2 is the yarn winding machine according to claim 1, wherein the winding winder sensor detects whether the thickness of the yarn passing through the detection region is normal.SaidA thread thickness detector is used.
[0011]
According to this configuration, since the yarn thickness detector that detects the yarn thickness defect is used as the take-up side outlet sensor, not only whether the yarn end on the take-up side has been drawn out, but also on the drawn yarn. Whether the thickness is normal or not can also be detected. Thus, for example, when the yarn is drawn out in a state where two yarn ends on the winding side are aligned, the state can be detected as an abnormal yarn thickness, and two yarn ends on the winding side are aligned. It is possible to prevent the seam from being connected to the lower thread and being mixed into the winding thread body. Accordingly, it is possible to obtain a yarn winder that can suppress wasteful consumption of compressed air and prevent the yarn splicing from being started in an abnormal state and starting winding as it is.
[0012]
  According to a third aspect of the present invention, the yarn winding machine according to the first or second aspect of the invention detects whether or not the lead-out operation of capturing and pulling out the yarn end on the side of the yarn winding body is normally performed during the yarn joining operation. forSalaryA yarn-side outlet sensor, wherein the control means detects the winding-side outlet sensor and the yarn-feeding-side sensor.And the zero point adjustment result of the thread thickness detectorThe electromagnetic valve is switched based on the above.
[0013]
According to this configuration, not only the take-up side outlet sensor, but also the success or failure of the yarn-feeding side outlet operation of catching the yarn end on the yarn feeding bobbin body side by the lower yarn catching guide means and guiding it to the yarn joining device. Similarly to the winding side outlet sensor, a yarn feeding side outlet sensor that can be grasped by the presence and / or thickness of the yarn is also provided. Then, switching of injection / stop of fluid (compressed air or the like) by the yarn joining nozzle of the yarn joining device is controlled based on the detection results of the winding side outlet sensor and the yarn supply side outlet sensor. Therefore, it is possible not to perform the injection of compressed air or the like by the yarn joining nozzle not only when the take-out of the take-up yarn end is failed but also when the yarn supply-side yarn end is failed. A yarn winder that suppresses the wasteful consumption is obtained.
[0016]
The yarn splicing method according to the present invention is characterized in that, after performing a lead-out operation for capturing and pulling out the yarn ends of the take-up wound yarn body and the yarn-feeding yarn body, both the threaded yarn ends are fed to the yarn joining device. This is a yarn joining method in which the yarn joining is performed by using fluid injection by the yarn joining nozzle in the yarn joining device, and the yarn end operation on the winding side and / or the yarn end on the yarn feeding side is normally performed. When it is detected that the operation has been performed, fluid ejection is performed by the yarn joining nozzle at a predetermined timing, and when it is detected that the unwinding operation of the yarn end on the winding side and / or the yarn end on the yarn supply side has failed ( This means that the fluid ejection by the yarn splicing nozzle is prohibited when it is detected that the operation has not been performed normally. Thereby, it is possible to prevent wasteful fluid ejection at the time of unsuccessful mouthing and to prevent the yarn from being connected in the unsuccessful mouthing state.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a yarn winding machine 1 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram illustrating a control configuration of a yarn joining device or the like in the yarn winding machine 1, and FIG. 2 is a side view illustrating a device configuration of a winding unit in the yarn winding machine 1. 3 is a block diagram showing a control configuration of the yarn winding machine 1 as a whole. 4 and 5 are diagrams illustrating the yarn joining device of the yarn winding machine 1. FIG.
[0018]
First, the device configuration of the yarn winding device 1 will be described. A number of winding units 2 shown in FIG. 2 are arranged in parallel in the yarn winding machine 1, and the winding unit 2 is supplied from a large number of yarn winding bodies 5 (yarn feeding bobbins or yarn feeding packages). The yarn is wound in order while splicing the yarn to form a large wound winding body 6 (winding package) having a predetermined yarn amount. The yarn Y to be unwound from the yarn supply winding body 5 supported by the tray 11 is held by a cradle 12 (winding tube support means) and wound up on a winding winding body 6 that rotates around the traverse drum 13. .
[0019]
A solution for assisting the unwinding of the yarn from the yarn supply winding body 5 in order from the bottom to the top (from the upstream side to the downstream side) in the yarn path from the yarn supply winding body 5 to the winding winding body 6舒 Auxiliary device 15, lower yarn detection sensor 14 (yarn supply side outlet sensor) for detecting success / failure of yarn feeding side extraction (operation to capture and pull out the yarn end on the yarn winding body side), and a predetermined tension on the yarn Y A tension applying device 16 to be applied, a yarn joining device 20, a yarn thickness detector 19 (yarn clearer) for detecting a yarn thickness defect such as a slab, a waxing device 17 for applying wax to the yarn Y, traversing The winding unit 2 is configured by disposing the drum 13.
[0020]
Here, the yarn thickness detection device 19 constantly measures the yarn thickness during winding, and outputs a yarn thickness detection signal corresponding to the thickness of the yarn in the detection area. Based on this thread thickness detection signal, a thread thickness defect is detected by the clearer controller 50 described later. As a detection method of the thread thickness detector 19, a capacitance type or an optical type is used. In either method, the detected thread thickness is converted into a voltage and grasped.
[0021]
When the yarn thickness detector 19 detects a yarn thickness defect below the yarn thickness detector 19, or when the full tube (the wound winding body is sufficiently wound with the yarn into a full package) ) And doffing (unwinding the wound winding thread body from the winding tube support means, setting (attaching) a new winding tube to the winding tube support means, When attaching (yarning) the yarn end of the yarn supply winding body to a new winding tube), a yarn defect detection signal or a full tube signal is used between the yarn supply winding body 5 and the winding yarn body 6. A cutter 19a (yarn cutting device) for cutting the connected yarn Y is provided.
[0022]
The tension applying device 16 is a contact type that applies tension by friction with the yarn, for example, a gate type that engages a pair of comb blades or a disc type that applies tension by sandwiching a yarn between a pair of discs. . The tension applying device 16 can adjust the applying tension by an electric signal.
[0023]
As will be described later, the yarn joining device 20 injects compressed air that acts on the yarn in the yarn joining device, and causes the swirling air flow to act on the overlapping portion of the two yarn ends in the yarn joining device. A yarn joining device (air splicer), an untwisting nozzle 33 for twisting back each of the upper yarn end and the lower yarn end, and a twist for twisting the upper yarn end and the lower yarn end by generating a swirling air flow A hooking nozzle 34, a clamp device 31 that holds the upper yarn end and the lower yarn end, respectively, and a yarn cutting device 32 that cuts the tip portions of both yarn ends are described later. .
[0024]
A suction pipe 21 (upper yarn catching and guiding means) that sucks and captures the yarn (upper yarn) from the winding winding body 6 and guides it by moving in the yarn joining device 20 by a turning operation above the yarn joining device 20. Is provided below, and the yarn (lower yarn) on the side of the yarn winding body connected to the yarn feeding body 5 is sucked and captured, and moved and guided into the yarn joining device 20 by a turning operation. A relay pipe 22 (lower thread catching and guiding means) is provided.
[0025]
At the end of the relay pipe 22, a lower thread catching port 22a (suction port) for sucking and catching the lower thread, and switching the lower thread catching port 22a to a closed state or an open state, and gripping the lower thread in the closed state Clamping means 22b is provided. As will be described later, the relay pipe 22 is turned up and down by a motor 49 that can be positioned at an arbitrary rotational position. Under the control of the motor 49, the lower end position (yarn end catching position) a, At least a standby position b that is in a downward state below the device 20 and an introduction position (upper end position) c to the yarn joining device 20 can be taken. The clamping means 22b hits the fixed stopper at the yarn end catching position a or the introduction position c to switch from the closed state to the open state, and sucks the lower yarn from the lower yarn catching port 22a or releases the gripped yarn end. To suck from the lower thread catching port 22a. The clamp means 22b is maintained in a closed state at positions other than the yarn end capturing position a and the introducing position c, and the captured lower thread is continuously gripped.
[0026]
The suction pipe 21 is driven in linkage with the yarn joining device 20 via a drive motor 46 (yarn joining motor) and a cam mechanism 45, which will be described later, and the upper yarn catching port 21a (suction port) is positioned below the yarn joining device 20. And the upward catching position e where the upper thread catching port 21a is located in the vicinity of the contact position between the winding yarn body 6 and the traverse drum 13.
[0027]
When the bobbin is changed to change the yarn feeding bobbin body 5, the yarn end of the yarn feeding bobbin body 5 is blown up, and this yarn end reaches the yarn guide 23 via the unwinding assisting device 15 and reaches the yarn end catching position a. A certain relay pipe 22 is sucked and caught by the lower thread catching port 22a. At the time of yarn splicing, the relay pipe 22 pivots from the standby position b to the yarn end catching position a, the clamp means 22b is opened, and the yarn feeding spool held by the tension applying device 16 by suction from the lower yarn catching port 22a. The yarn end on the body 5 side is sucked and captured.
[0028]
Further, the suction pipe 21 is swung upward from the solid line position shown in the figure to the upward yarn catching position e along the arrow, and is wound back by the rotation in the direction opposite to the winding direction of the traverse drum 13. The yarn end of the wound yarn body 6 is sucked and captured. When the suction pipe 21 pivots downward toward the illustrated solid line position (downward standby position d) and the relay pipe 22 pivots to the introduction position c, both the lower thread and the upper thread are threaded together. The lower yarn and the upper yarn are spliced by the yarn splicing device 20 as will be described later.
[0029]
The traverse drum 13 can be rotated by the drive motor 25 in the winding direction or in the opposite direction. A traverse groove is formed on the surface of the traverse drum 13, and the yarn Y wound up along the traverse groove performs a traverse operation. Instead of the traverse drum 13, a simple drive drum may be used and a separate traverse device may be provided.
[0030]
The winding winding body 6 that rotates with the traverse drum 13 is held by the cradle 12. The cradle 12 can be opened and closed in the direction of the thickness of the paper surface of FIG. 2 by operating the arm 12a. The fully wound winding body 6 can be discharged (support release) or a new winding tube can be mounted. It has become. The cradle 12 that holds the wound winding body 6 can be lifted from the traverse drum 13 by a cradle lifter 26 by a predetermined distance. Further, a package brake 27 is provided at the tip of the cradle 12 for preventing rotation of the wound winding body 6 that has floated and becomes free.
[0031]
The wound winding body 6 released from the cradle 12 is discharged to a conveying device 29 such as a belt conveyor through a package guide 28. The conveying device 29 is provided behind the winding unit 2 along the direction in which the winding units 2 are arranged. The package guide 28 is connected to the cradle 12 so as to be able to be linked. When the cradle 12 is raised, the package guide 28 is inclined in the discharge direction. In addition, a winding tube storage device (not shown) is disposed above the cradle 12 of each winding unit 2, and a doffing device (not shown) (a winding winding body that has become full) The take-up tube received from the take-up tube storage device is attached to the cradle 12 by a device for attaching a simple take-up tube and threading the take-up tube.
[0032]
FIG. 3 is a block diagram showing a control configuration of the entire yarn winding machine 1, and each winding unit 2 has a unit controller 41, and a number of unit controllers 41 are connected to a machine controller via a communication network. 43. The machine controller 43 is located at the end (not shown) of the machine, and controls the entire machine. The machine controller 43 can transmit various setting values to the unit controller 41. Although not shown in FIG. 3, the machine controller 43 may be connected to a doffing controller that operates each device of the doffing device via a communication network.
[0033]
In FIG. 3, a unit controller 41 controls each operation of the winding unit 2. The unit controller 41 includes a motor 49 that rotates the relay pipe 22, members of the yarn joining device 20, and A drive motor 46 (yarn joining motor) that rotationally drives the cam of the cam mechanism 45 that operates the suction pipe 21 in a predetermined order and a drive motor 47 that rotationally drives the traverse drum 13 are connected. Each operation of the winding unit 2 controlled by the unit controller 41 includes a yarn splicing operation including driving of the relay pipe 22, driving of the suction pipe 21, and driving of each member of the yarn splicing device 20. . The motor 49 can be positioned at an arbitrary rotational position. For example, a stepping motor or a pulse motor can be used.
[0034]
As will be described later, the unit controller 41 is connected to a clearer controller 50 having a zero point adjustment function of the thread thickness detector 19 so as to be communicable. 27 on / off control is performed. The unit controllers 41 are provided so as to correspond to the respective winding units 2, but one unit controller 41 can be associated with a plurality of winding units 2.
[0035]
Here, the yarn joining device 20 will be described in detail. FIG. 4 is an external perspective view of the yarn joining device 20, and FIG. 5 is a diagram illustrating a flow of yarn joining operation by the yarn joining device 20. First, in FIG. 4, the yarn joining device 20 includes a yarn joining nozzle that is operated during yarn joining. This yarn splicing nozzle has a twisting air flow acting on the untwisting nozzle 33 that performs untwisting of the upper yarn end and the lower yarn end respectively, and the overlapping portion of the upper yarn end and the lower yarn end. And a twisting nozzle 34 for twisting. The pair of untwisting nozzles 33 are arranged on both sides of the twisting nozzle 34. That is, the untwisting nozzle 33 for the upper yarn end is disposed below the twisting nozzle 34, and the untwisting nozzle 33 for the lower yarn end is disposed above the twisting nozzle 34. In FIG. 4, a cross section including an untwisting nozzle pipe 33 a communicating with the untwisting nozzle 33 is illustrated.
[0036]
A yarn cutting device 32 (yarn end cutter) is provided above and below the untwisting nozzle 33 to cut the tip portions of the upper yarn end and the lower yarn end, respectively. A yarn shifting lever 36 that adjusts the position of the overlapping portion (joint portion) of the ends is provided, and a clamp device 31 that holds the upper yarn end and the lower yarn end is provided above and below the lever.
[0037]
The outline of the operation flow of the yarn joining device 20 having the above configuration is shown in FIGS. Both show schematic cross-sectional views of the untwisting nozzle 33 and the twisting nozzle 34. First, as described above, after cutting and removing a defective portion such as a slab, the upper yarn end and the lower yarn end are respectively formed in the yarn joining device 20 by the suction pipe 21 and the relay pipe 22 in order to connect both yarn ends. Guided (see FIG. 2). Then, the upper yarn end y1 and the lower yarn end y2 are positioned so as to overlap in the twisting space 38 in the twisting nozzle 34 of the yarn joining device 20 (see FIGS. 4 and 5A). At this time, the upper yarn end y1 and the lower yarn end y2 are guided to the twisting space 38 along the slanted wall portion 38a of the twisting nozzle 34.
[0038]
From this state, as shown in FIG. 5A, the upper thread end y1 and the lower thread end y2 are pushed in the direction of the arrow A in the figure by the thread shifting lever 36, and both the thread ends y1, Hold y2. And the front-end | tip part of both the thread ends y1 and y2 is cut with the thread | yarn cutting device 32 (thread end cutter). The cut end portions are sucked by the suction pipe 21 and the relay pipe 22, respectively.
[0039]
Next, in FIG.5 (b), the compressed air for producing a swirl air flow in the untwisting nozzle pipe 33a of the untwisting nozzle 33 is injected. In addition, although mentioned later, this compressed air is injected only when the solenoid valve 35b mentioned later is open. The injection passage 33c is inclined and connected so that the compressed air flows in a direction toward the back of the twisted nozzle pipe 33a. For this reason, since compressed air flows toward the opposite side (downstream side) of the opening 33b of the untwisting nozzle pipe 33a and the vicinity of the opening 33b of the untwisting nozzle pipe 33a becomes negative pressure, the yarn end cutter 32 The ends of both yarn ends y1 and y2 after being cut by are sucked into the untwisting nozzle pipe 33a. As described above, two untwisting nozzle pipes 33a are provided to suck the upper yarn end y1 and the lower yarn end y2, respectively. At this time, the upper and lower yarn shifting levers 36 return slightly (in the direction of arrow B in the figure), and the yarn end having a predetermined length is sucked into the untwisting nozzle pipe 33a. The yarn ends y1 and y2 sucked into the untwisting nozzle pipe 33a are twisted back by the swirling air flow in the pipe and loosened.
[0040]
The jet of compressed air at the untwisting nozzle 33 is stopped at the timing when the untwisting of the tip portions of both yarn ends y1 and y2 is completed. Then, as shown in FIG. 5 (c), the upper and lower yarn shifting levers 36 again push the yarn ends y1 and y2, respectively, and pull out the yarn ends sucked into the untwisting nozzle pipe 33a to a predetermined length. Further, the yarn presser lever 37 (see FIG. 4) moves in the direction of arrow C in the drawing to press the yarn, and at the same time, the compressed air is injected from the twisting nozzle 34 into the twisting space 38. As a result of the jet of compressed air, a swirling air flow is generated in the twisting space 38 as indicated by an arrow, and the overlapping portions of the two yarn ends that have been loosened are entangled and twisted together. The compressed air is injected from the twisting nozzle 34 only when an electromagnetic valve 35a described later is open.
[0041]
With the above operation, the yarn splicing between the upper yarn end y1 and the lower yarn end y2 is completed, and the upper and lower clamping devices 36 release the holding of the yarn ends, so that the winding can be resumed. The driving of each member in the series of yarn joining operations described above is performed in conjunction with the rotation of the cam mechanism 45 using the drive motor 46 as a drive source.
[0042]
Next, control configurations of the yarn splicing device 20 and the yarn thickness detector 19 will be described with reference to FIG. First, as described above, the unit controller 41 is connected to the yarn joining motor 46 (drive motor), and further connected to the cam mechanism 45 that is rotationally driven by the yarn joining motor 46. The cam mechanism 45 is connected to the members (the yarn cutting device 32, the clamp device 31, the suction pipe 21, etc.) that perform the series of yarn joining operations described above, and these members are driven by the rotation of the cam mechanism 45. . With this configuration, the drive motor 46 rotates based on the yarn joining operation start command issued from the unit controller 41, and a series of yarn joining operations is performed.
[0043]
The unit controller 41 includes solenoid valves 35a and 35b for switching injection / stop of compressed air by the yarn joining nozzles (the untwisting nozzle 33 and the twisting nozzle 34), a clearer controller 50, and a lower thread detection sensor 14. Are connected so as to be able to transmit or receive signals to be described later.
[0044]
The electromagnetic valve 35a is provided in the middle of a supply path for supplying compressed air to the twisting nozzle 34 of the yarn joining nozzle, and switches supply / interruption of compressed air in the twisting nozzle 34 by an opening / closing operation. The solenoid valve 35b is provided in the middle of a supply path for supplying compressed air to the untwisting nozzles 33 (two) of the yarn joining nozzles, and switches supply / interruption of compressed air in the untwisting nozzles 33 by an opening / closing operation. . That is, by opening and closing the electromagnetic valves 35a and 35b, the jetting / stopping of compressed air at the twisting nozzle 34 or the untwisting nozzle 33 is switched. The opening / closing commands for the electromagnetic valves 35a and 35b are transmitted from the unit controller 41. If the signal from the unit controller 41 is on the “open” side, compressed air is injected from the twisting nozzle 34 or the untwisting nozzle 33, and “ On the “closed” side, the injection of compressed air is stopped.
[0045]
Further, the clearer controller 50 communicatively connected to the unit controller 41 includes a zero point adjusting means 51 for adjusting a zero point with respect to a detection value of the thread thickness detector 19 (yarn clearer), and a thread thickness detector 19. A yarn thickness defect detecting means 52 for detecting a yarn thickness defect such as a slab based on the detected value (thread thickness signal), and receiving a yarn thickness detection signal from the yarn thickness detector 19; The yarn cutting device 19a (cutter) is connected so as to be able to transmit a yarn cutting signal.
[0046]
That is, the clearer controller 50 receives the yarn thickness detection signal that is always detected by the yarn thickness detector 19 during winding of the yarn, and the yarn thickness defect detection means 52 based on the received yarn thickness detection signal, It is determined whether the yarn thickness is within a predetermined range (a state where the yarn thickness is not a defect). If the yarn thickness exceeds this range, a yarn cutting signal is transmitted to the yarn cutting device 19a and the unit controller 41 is also notified. A yarn defect detection signal is transmitted. The yarn cutting device 19a cuts the running yarn Y based on the yarn cutting signal. After the yarn is cut, the yarn joining using the yarn joining device 20 is performed as described above. In this yarn splicing operation, the yarn defect portion wound around the winding winding body 6 is removed.
[0047]
In the zero point adjusting means 51 provided in the clearer controller 50, the zero point correction signal (zero point adjustment command signal) transmitted from the unit controller 41 is received in a state where there is no thread in the thread thickness detector 19. At this time, the zero point adjustment (zero point correction) is performed by adjusting the circuit constant on the substrate and adjusting the output signal to zero.
[0048]
The fact that there is no yarn in the yarn thickness detector 19 is recognized by the unit controller 41 by transmission of a yarn presence / absence signal from the clearer controller 50. Further, the unit controller 41 can grasp that an abnormality in the thickness of the yarn has occurred based on the yarn defect detection signal from the clearer controller 50. When the yarn is cut by the yarn cutting device 19a, there is no yarn in the detection area of the yarn thickness detector 19. At this time, the clearer controller 50 detects the absence of yarn based on the yarn thickness detection signal from the yarn thickness detector 19. Then, a yarn presence / absence signal (yarn absence signal) for notifying that there is no yarn is transmitted to the unit controller 41.
[0049]
The unit controller 41 recognizes that the yarn thickness detector 19 is in a yarn-free state by receiving this yarn-free signal, and transmits a zero point correction signal to the clearer controller 50. When the zero point correction signal is received, the clearer controller 50 adjusts the zero point with respect to the value detected by the thread thickness detector 19. When the zero point adjustment of the thread thickness detector 19 is completed, the clearer controller 50 transmits a zero point adjustment completion signal to the unit controller 41.
[0050]
Thus, the clearer controller 50 detects whether or not the yarn thickness is normal and also detects the presence or absence of the yarn in the detector 19. Therefore, the yarn thickness detector 19 detects whether or not the winding side outlet operation has been normally performed by capturing and pulling out the yarn end on the winding winding body 6 side by the suction pipe 21 during the yarn joining operation. Can be used as the take-out side outlet sensor 19. That is, when the upper thread is being delivered by the suction pipe 21, if there is a thread in the thread thickness detector 19 (winding side outlet sensor) and the thread thickness is normal, the upper thread exit ( Winding-side outlet) If the operation is successful and there is no yarn or there is a yarn but the thickness is abnormal, it is detected that the outlet has failed.
[0051]
Further, as described above, the unit controller 41 detects whether or not the yarn feeding side lead-out operation is normally performed by capturing and drawing out the yarn end on the yarn feeding side by the relay pipe 22 during the yarn joining operation. The detection result of the yarn feeding side outlet sensor 14 can also be input. The yarn feeding side outlet sensor 14 does not need to detect an abnormality in the thickness of the yarn, and only needs to detect the presence or absence of the yarn. For example, when the relay pipe 22 pivots from the yarn end catching position a to the introduction position c, a sensor for detecting the passage of the yarn caught by the relay pipe 22 can be used. In this case, it is preferable to use a photoelectric sensor. If the yarn is in the lower yarn detection sensor 14 (yarn supply side outlet sensor) during the lower yarn outlet operation by the relay pipe 22, the lower yarn outlet (yarn supply side outlet) operation is successful. If there is no state, it is detected that the mouth has failed.
[0052]
Therefore, the unit controller 41 has the communication configuration as described above, so that the detection result (yarn presence / absence signal) of the winding side outlet sensor 19 (yarn thickness detector) and the yarn supply side outlet sensor 14 (lower thread) Based on the detection result of the detection sensor) and the zero point adjustment result of the yarn thickness detector 19 (zero point adjustment completion signal transmitted from the clearer controller 50), the open / close state of the solenoid valves 35a and 35b is switched to The injection / stop of compressed air from the nozzles for twisting (twisting nozzle 34, untwisting nozzle 33) can be switched. That is, the unit controller 41 includes control means for switching the electromagnetic valves 35a and 35b based on the detection results of the outlet sensors 19 and 14 and the zero point adjustment result.
[0053]
With the above control configuration, it is detected that the yarn is present in the winding side outlet sensor 19 and the thickness of the yarn is normal during the yarn splicing operation (condition (1): successful winding side outlet), and the yarn supply side There are three conditions (condition {circle around (1)}) that the yarn feed sensor 14 detects the presence of the yarn (condition {circle around (2)}: successful yarn feeding side lead out), and the zero point adjustment of the yarn thickness detector 19 is completed (condition {circle around (3)}). The electromagnetic valves 35a and 35b can be controlled so as to inject compressed air from the twisting nozzle 34 and the untwisting nozzle 33 only when (3) to (3)) are prepared.
[0054]
Therefore, when the spout operation fails, even if a series of yarn splicing operations are performed by the rotation of the cam mechanism 45, compressed air is not injected from the yarn splicing nozzle 30 (twisting nozzle 34, untwisting nozzle 33). The wasteful consumption of compressed air can be suppressed, and the yarn can be prevented from being wound and wound in an abnormal state. If the yarn is not ejected by the twisting nozzle 34, the yarn will not be connected. Therefore, from the viewpoint of preventing the yarn connected in an abnormal state from being mixed into the take-up wound yarn body 6, the spout failure ( In the case of (abnormal), at least the injection by the twisting nozzle 34 may be stopped.
[0055]
Further, when the zero point adjustment of the yarn thickness detector 19 is not performed, it is possible to reliably prevent winding from being resumed while the zero point of the yarn thickness detection value is out of order. It is also possible to prevent a situation in which the value deviates from the actual thread thickness, the normal thickness portion is erroneously recognized as a thread thickness defect, and wasteful thread cutting is performed. In other words, the yarn joining can be performed with the zero point of the yarn thickness detector always accurate.
[0056]
Although the above is description of the yarn winding machine 1, embodiment is not limited above, For example, you may implement as deform | transforming as follows.
[0057]
(1) In this embodiment, the yarn thickness detector is used in combination as a winding side outlet sensor, but a winding side outlet sensor may be provided in the suction pipe 21 separately.
[0058]
(2) In this embodiment, during the yarn splicing operation, the winding side outlet success (condition (1)), the yarn feeding side outlet success (condition (2)), and the zero point adjustment completion (condition (3)) are referred to. Only when the three conditions are met, the compressed air is controlled to be injected from the twisting nozzle 34 and the untwisting nozzle 33. However, only the condition (1), or only the conditions (1) and (2) The control may be performed so that the compressed air is ejected when the above is established. Even in this case, useless injection of compressed air can be suppressed, and, for example, it can be prevented that two yarns are connected together.
[0059]
【The invention's effect】
  As described above, according to the first aspect of the present invention, at the time of yarn joining operation, the yarn end on the winding winding body side is caught by the upper yarn catching guide means and then pulled out and guided to the yarn joining device. When performing this, a take-up side outlet sensor is provided for detecting whether or not the yarn is passing through a yarn path formed in a normal state when such an outlet operation is successful. The winding side outlet sensor can be used to determine whether or not the winding end of the winding yarn body side yarn end has been normally performed. Based on the detection result of the winding side outlet sensor, Since the switching of the fluid injection / stop by the yarn joining nozzle of the joining device is controlled, it is possible to prevent the ejection by the yarn joining nozzle when the ejection fails. Therefore, a yarn winder that suppresses unnecessary consumption of compressed air or the like can be obtained.
  Furthermore, in addition to the detection result of the winding side outlet sensor, based on the zero point adjustment result of the yarn thickness detector disposed on the yarn path between the yarn supply winding body and the winding winding body, The injection / stop of fluid (compressed air or the like) by the yarn joining nozzle of the yarn joining device is controlled. Therefore, it is possible to obtain a yarn winder that suppresses wasteful consumption of compressed air and the like, and it is possible to prevent wasteful yarn cutting. That is, because the zero point adjustment has not been performed, the winding thickness is resumed while the zero point of the yarn thickness detection value is out of order, so that the yarn thickness detection value deviates from the actual thickness, A normal thickness portion is recognized as a yarn thickness defect, and the yarn can be reliably prevented from being cut.
[0060]
According to the invention of claim 2, since the yarn thickness detector for detecting the yarn thickness defect is used as the take-up side outlet sensor, not only whether or not the yarn end on the take-up side has been drawn out, but also withdrawn. It is also possible to detect whether the thickness of the thread is normal. Thus, for example, when the yarn is drawn out in a state where two yarn ends on the winding side are aligned, the state can be detected as an abnormal yarn thickness, and two yarn ends on the winding side are aligned. It is possible to prevent the seam from being connected to the lower thread and being mixed into the winding thread body. Accordingly, it is possible to obtain a yarn winder that can suppress wasteful consumption of compressed air and prevent the yarn splicing from being started in an abnormal state and starting winding as it is.
[0061]
According to the invention of claim 3, not only the take-up-side outlet sensor but also the yarn-feeding-side outlet operation in which the yarn end on the yarn-feeding bobbin body side is caught by the lower yarn catching guide means and then pulled out and guided to the yarn joining device. Similarly to the winding-side outlet sensor, a yarn-feeding-side outlet sensor that can grasp the success or failure of the yarn from the presence / absence and / or thickness of the yarn is also provided. Then, the switching of the fluid ejection / stop by the yarn joining nozzle of the yarn joining device is controlled based on the detection results of the winding side outlet sensor and the yarn supply side outlet sensor. Therefore, it is possible not to perform the injection by the yarn joining nozzle not only when the take-out side yarn end is unsuccessful but also when the yarn supply side yarn end is unsuccessful, and wasteful consumption of compressed air, etc. A yarn winder can be obtained.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a control configuration of a yarn joining device and the like in a yarn winding machine according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a device configuration of a winding unit in the yarn winding machine according to the embodiment.
FIG. 3 is a block diagram illustrating a control configuration of the yarn winding machine according to the present embodiment.
FIG. 4 is an external perspective view of a yarn joining device in the yarn winding machine according to the embodiment.
FIG. 5 is a diagram illustrating a flow of a yarn joining operation by a yarn joining device in the yarn winding machine according to the embodiment.
[Explanation of symbols]
1 Yarn winding machine
2 Winding unit
5 Yarn supply body
6 Winding winding body
14 Lower thread detection means
19 Thread thickness detector
20 Yarn splicer
30 Yarn splicing nozzle
33 Untwisting nozzle
34 Twisting nozzle
35a, 35b Solenoid valve
41 Unit controller
60 Clearer Controller

Claims (3)

A yarn winding machine including a winding unit that pulls up a yarn to be unwound from a yarn supply winding body and winds the yarn to a winding winding body,
The winding unit includes a yarn joining device that connects the yarn ends drawn from the yarn feeding winding body side and the winding winding yarn side, and an outlet that captures and pulls out the yarn end on the winding winding yarn side during yarn joining operation. Winding side outlet sensor for detecting whether or not the operation is normally performed, a yarn joining nozzle for ejecting a fluid acting on the yarn in the yarn joining device, and fluid ejection by the yarn joining nozzle For detecting whether or not the thickness of the thread passing through the detection region is normal, disposed on the yarn path between the solenoid valve for switching between / stop and the yarn feeding winding body and the winding winding body Based on a yarn thickness detector, a zero point adjusting means for adjusting the zero point of the yarn thickness detector, a detection result of the winding side outlet sensor, and a zero point adjustment result of the yarn thickness detector And a control means for switching the electromagnetic valve. The yarn winding device according to claim 1, wherein the yarn thickness detector for detecting whether or not the thickness of the yarn passing through the detection region is normal is used as the winding-side outlet sensor. Machine. A yarn feed side feed sensor for detecting whether or not a feed operation for capturing and pulling out the yarn end on the yarn supply winding body side during a yarn joining operation has been performed normally; and the control means includes the winding side feed sensor 3. The yarn winding according to claim 1, wherein the electromagnetic valve is switched based on a detection result of the sensor and the yarn feeding side outlet sensor and a zero point adjustment result of the yarn thickness detector. Machine.

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