KR20010049750A - Apparatus for detecting knotting state in creel - Google Patents

Abstract

PURPOSE: To determine whether yarn knotting is finished or not, reliably with a simple structure, when feed bobbins in creels are changed and the yarn and retained in the creels and the yarn leader of the new feed bobbin are knotted together before take-up motion is started. CONSTITUTION: A creel for accommodating a multitude of feed bobbins 12 includes a nip member 38 for holding the yarn leader of a newly placed feed bobbin 12, a tension disk for holding the yarn end of a feed bobbin 12 that had been in the creel in position downstream of the nip member 38, and a knotter for automatically knotting the two lines of yarn retained between the two holders. Tensioning means 34 apply prescribed tension to yarn 16 thus knotted between the two holders, by forcing a tensioning lever 18 on it. A detecting element 24 and a proximity sensor 32 detect the state of tension the tensioning means 34 apply to the yarn 16.

Description

Krill Sealing Device {APPARATUS FOR DETECTING KNOTTING STATE IN CREEL}

The present invention relates to a new thread supply bobbin thread and a previous thread supply bobbin after exchanging the thread supply bobbin in a krill, in which a thread supply bobbin is arranged on a frame of a plurality of matrices so as to wind a large amount of inclination to the beam, thereby allowing the thread to be simultaneously drawn out. It relates to a technique for detecting whether the yarn remaining on the krill is bound together.

Conventionally, krill is used for arranging a plurality of thread supply bobbins on a frame to draw out hundreds to thousands of threads and wind them in a sheet. In this krill, the thread of the thread supply bobbin is consumed by drawing out the thread from the thread supply bobbin, and the thread of the thread supply bobbin is cut in the state remaining on the krill after use for reasons such as replacement of the thread type. It is necessary to replace the old actual supply bobbin with the new one.

For example, in order to minimize the down time due to the exchange of the thread feed bobbins, a plurality of holders are provided on the front and rear surfaces of each of the frames extending in the vertical direction, so that the same number of thread feed bobbins can be arranged. A semi-magazine krill is used to rotate the frame 180 ° so that the new thread feed bobbin is simultaneously opposed to a predetermined position. Simultaneously withdraw the thread from the thread supply bobbin on the used side (rear side), and place a new thread supply bobbin to be used next in the holder on the standby side (front side) which is not currently used. At the time of thread replacement, the thread of the previous thread supply bobbin is cut at its vicinity, the frame facing the new thread supply bobbin disposed on the front side at the remaining thread end is reversed by 180 °, and then the new thread supply bobbin is Hand strap the front end of the yarn and the end of the residual chamber remaining in the krill, and then the winding device is activated to wind the thread onto the beam. When the strap is tied by hand, in addition to strapping by hand (knotter) or the like may be automatically strapping in sequence, such a strap is already known.

However, in the case of using the conventional automatic strapping device, since the failure of the thread binding depends on the holding state of the thread, if the holding state is poor, it is difficult to complete the perfect binding, and in reality, the state of the failure of the actual binding often occurs. In addition, even when the thread seems to be perfectly bound in appearance, it often occurs when the thread is pulled out during operation. In more detail, the front end of the new thread supply bobbin is located near the new thread supply bobbin as it is, while the remaining thread on the other krill is released from tension and contracted in a zigzag form. do. In particular, in the case of continuous yarn or the like, the yarns are entangled in contact with an adjacent thread or a thread passing through the lower end. Even if it is not entangled, it may be pulled out by a plurality of intermediate guides (eyelets) or tensioning mechanisms (disk tensioners) installed along the actual path downstream by the operation of the winding beam. For this reason, it requires a lot of labor and time to recalibrate, and especially when passing the thread through the tensioning device or intermediate guide in the high position, the ladder or the like is moved to each position, Each one must involve hard work of making corrections.

Moreover, in general, since the break detector is attached to the exit of the krill, it can be considered to operate it. However, since the operation of the winding beam performed after the yarn binding is performed at a low speed, the tension of the yarn is lowered than usual, and malfunctions are likely to occur. Therefore, even when the thread cutting detector is operated, the thread cutting cannot be detected unless the thread tip is pulled out from the tensioning device, and it is completely useless to prevent complicated correction work for the thread binding defect.

The present invention is to solve the above-mentioned problems, the binding of the thread front end of the newly arranged thread supply bobbin and the remaining thread end of the previous thread supply bobbin and then pull the thread at the same time to start the winding with a simple structure An object of the present invention is to provide a krill string detection device capable of reliably detecting whether or not this has been done completely.

1A is a front view showing a krill binding strap detecting device as a first embodiment of the present invention;

1B is a side cross-sectional view of FIG. 1A.

2 is a front view showing an operating state of the binding strap detecting apparatus according to the first embodiment of the present invention.

3 is a plan view of a creel in which the binding strap detecting apparatus according to the first embodiment of the present invention is disposed.

4 is a front view of a creel in which the binding strap detecting apparatus according to the first embodiment of the present invention is disposed.

5 is a plan view of the thread binding detection device and the thread supply bobbin according to the first embodiment of the present invention.

6 is a perspective view of the krill strap detection apparatus according to a second embodiment of the present invention.

7 is a front view for explaining an embodiment of a method for displaying a result of detecting a binding state according to the present invention;

The krill thread detection device according to the present invention comprises a strap device for binding a thread end derived from a new second bobbin to be mounted instead of the remaining thread end of the first bobbin to be replaced, and a thread holding end of the first bobbin. The first holder, the second holder for holding the thread end drawn from the second bobbin, and the tension imparting member are brought into contact with the strap yarn held by the first and second holder, respectively, to bring the tension of the predetermined size to the yarn. And tensioning means for imparting and detecting means for detecting a tension state imparted to the yarn by said tensioning means. As a preferable configuration, in the thread binding detecting device, the tensioning means imparts tension to the thread by imparting its own weight of the tensioning member to the bound thread. More preferably, the tensioning means and the detecting means are arranged for each thread supply bobbin in the thread strap detecting apparatus.

More preferably, in the thread binding device, the tensioning means has a rod which is slidably supported by the creel and moves in the longitudinal direction of the rod through a driving means, and a coupling part that can be engaged with the bound thread, And a tensioning member that is engageable with the rod, wherein the tensioning member is displaced in the seal engagement direction by the driving means while engaging with the rod, and the tensioning member is separated from the rod when engaging with the bound seal. Move relative to the driven rod.

Preferably, the detection means in the above-mentioned tight binding apparatus is configured to detect the tensioning state by detecting the relative movement and position of the tensioning member due to mechanical movement. More preferably, an indicator for displaying the detection result of the tensioning state is arranged near each of the actual supply bobbins. More preferably, the strap detection device is configured to operate after the thread is drawn out after the operation of the strap device.

In the krill thread detection apparatus according to the present invention, the tensioning members move to the thread held by the two retainers, respectively, to contact the thread. In this case, if the thread strap is complete, the bound thread bears the pressing force of the tensioning member. As a result, the tensioning member is kept in a state where tension is applied to the thread. However, if the thread is not strapped or the strap state is poor, the knot of the thread strap is released by the pressing force of the tensioning member. As a result, no tension is imparted because there is no thread to support the tension. Therefore, the tensioning member is not moved relative to the driving means but moves further out of a predetermined position. That is, as the tension is present, the detection means detects the integrity of the thread when the tension imparting member moves relatively.

In addition, in the present invention, it is possible to adjust the tension given by changing the weight when tension is applied by the weight of the tension imparting member. Further, as described above, since the tensioning member can move relative to the driven rod, there is no danger that a large tension exceeding the set tension is applied to the bound yarn held by the retainer. If the strap detection result obtained by the detection means can be displayed, the calibration (repair) operation can be efficiently performed. In addition, it is easy to detect the failure of the strap if the strap detection device is operated at least before the strap is pulled out at the same time. In addition, since the end of the thread is located near each holder, it is possible to easily repair the defective state of the strap without having to spend a lot of labor and time in the repair work to find the end of the wound and bind and correct together as in the prior art.

Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

A first embodiment of the present invention will be described with reference to FIGS. 1A-5. First, FIG. 3 and FIG. 4 show a winding device which simultaneously pulls out the yarn from the krill 13 and the krill 13 and winds it around the winding beam 48. In the krill 13, a plurality of racks 17 for arranging the plurality of rows of thread supply bobbins 12 are arranged in the longitudinal direction. The rack 17 is installed so as to be rotatable 180 ° through an axis extending in the vertical direction, and each frame 14 constituting the rack 17 has a holder for arranging the thread supply bobbins 12 at substantially equal intervals ( 19) are installed on each of the front and back sides, and as described above, so-called semi-magazine krill can be arranged in which the thread supply bobbins can be arranged on both the front and back sides.

The thread from each thread supply bobbin 12 is arranged in a sheet form via a guide (eyelet) arranged on the krill 13, a disc tension 40 for imparting tension, and the like. It is wound around the winding beam 48 via the guide rolls 44, 45 and 46. In the carriage that runs on its own along the longitudinal direction of the krill 13, a knottter 42 serving as a thread binding device for binding the thread supply bobbin 12 and the remaining chamber on the krill side is a thread supply bobbin of each vertical row. Corresponding to each other.

5 shows the periphery of the thread supply bobbin in the krill 13, and shows the position of the thread restraint detection device 10 which is the main part of the present invention. A nipping member 38 is installed at the tip of the holder 19 installed in the rack 17, and the nipping member 38 is formed to protrude from the bobbin end when the thread supply bobbin is mounted, and the thread supply bobbin ( 12) is to be able to see the front end of the thread. In addition, the nipping member 38 is formed of, for example, two plate members, and the thread is sandwiched therebetween, and the pressure contact force, that is, the holding force, is obtained by thread extraction during the operation of the winding device to be performed later. It is set so that it can release easily as a tension rises.

A disc tensioner 40 is disposed at a position opposite to the thread supply bobbin 12, and the disc tensioner 40 serves to adjust the pull out of the thread so that the tension of the downstream thread reaches a predetermined value. In the disk tensioner 40, a thread continuous to the winding beam downstream from this is held. That is, the first retainer holding the thread front end of the new thread supply bobbin is the nipping member 38, and the second retainer holding the thread remaining on the krill corresponds to the disk tensioner 40. As shown in FIG. Between the first and second viewers, a seal strap detecting device 10 of the present invention, which is not shown, is disposed and at the same time, a notch 42 serving as a seal strap is accessible from the side.

The thread binding device 10 stands by at a predetermined position above so as not to interfere with the thread binding. And each holding | maintenance machine hold | maintains a thread in the state which left the length required for thread binding at the tip of a thread, and performs the thread binding of the thread hold | maintained by the advance | operation of the notch 42, and its effect | action. In addition, detailed descriptions are omitted in the operation of the notch, but the yarns from each holding machine are held to cross each other, and the yarns are bound by a known threading device such as a mechanical notifier or an air splier. Maintenance of the yarn by the first and second holders is continued.

1 and 2 show the binding strap detecting device 10 seen from the front direction of the thread supply bobbin 12. The seal strap detecting device 10 includes a tensioning lever 18 serving as a tensioning member, a rod 34 as a driving means for displacing it, a driving actuator 15, and a proximity sensor for detecting the tensioning lever 18 as a detecting means. (32). In the vertically extending frame 14 disposed on the krill 13 in correspondence with the thread supply bobbin, the tensioning member is positioned so as to intersect the nipper member 38 and the thread 16 held by the disk tensioner 40. A thin rod-shaped tensioning lever 18 is provided. The proximal end of the encouragement lever 18 has a wide attachment portion 20 formed therein, and the proximal end thereof is formed with a cylindrical bearing portion 22 extending in a direction orthogonal thereto. In addition, the bearing portion 22 has an indexing piece 24 extending in the opposite direction to the tensioning lever 18 and in the radial direction, and a coupling portion extending in the axial diameter and the axial direction at a position proximate to the detecting piece 24. (26) is integrally formed.

The engaging portion 26 is provided at a position separated by a predetermined angle counterclockwise with respect to the detection piece 24 with respect to the axis of the bearing 22 as shown in FIG. It is set appropriately in response to the operation. Further, the distal end of the engaging portion 26 is formed to be spaced apart from the bearing portion 22 by a predetermined interval and to extend in parallel in the axial direction thereof. The tensioning lever 18 is pivotally pivotally supported to insert the shaft 28 into the bearing portion 22 and to install the shaft 28 at a predetermined position of the frame 14.

The frame 14 is provided with a proximity sensor 32 on the bending piece 30 extending in the upper direction of the shaft 28 in parallel with the axis, and is opposed to the detection piece 24 and the detection piece 24. The gap between the detection portions of the proximity sensor 32 is set in advance so as to be the interval required for detecting the detection piece 24. In addition, a rod 34 extending in the vertical direction is provided near the side surface of the frame 14. As shown in Fig. 2, the rod 34 is connected to a drive actuator 15 such as an air cylinder, which is a driving means, and the rod 34 is held to be movable in the vertical direction along the frame 14. The rod 34 is provided with a raised portion 36 which extends in the horizontal direction corresponding to the engaging portion 26 of the tensioning lever 18 and forms a projection capable of engaging the engaging portion 26. The engagement portion 26 can be reliably coupled to the riser 36 at the top and bottom of the 34, and the tensioning lever 18 can be rotated.

Next, a series of operations from the replacement of the actual supply bobbin to the operation of the actual binding detection device 10 will be described. First, when replacing the existing thread supply bobbin 12 with the new thread supply bobbin 12, the thread 16 of the existing thread supply bobbin 12 upstream of the disc detention 40 is once Cut. And the end of the thread 16 wound on the existing thread supply bobbin 12 is held by the disk tensioner 40, at this time, the end of the thread hangs to the front of the disk tensioner 40 by the length required for the thread binding. While the frame 17 holding the previous thread feeding bobbin 12 is rotated by 180 °, the previous thread feeding bobbin 12 is replaced with a new thread feeding bobbin 12. At this time, the thread front end of the new thread supply bobbin 12 is held by the nipper member 38. Moreover, the thread of the length required for subsequent thread binding is hanged in front of the nipper member 38. As shown in FIG. When the rod 34 is lowered to the actual strap detecting device 10, the rising portion 36 of the rod 34 is positioned at the dashed-dotted line in FIG. 1A, and the coupling portion 26 is pressed down. The tensioning lever 18 is in the standby position of A in the figure. Moreover, the standby position of A is a position higher than the thread 16 of the thread supply bobbin 12, and becomes a position which does not prevent the thread binding by the notifier 42. FIG.

The end of the previous thread supply bobbin held by the disk tensioner 40 and the end of the yarn held by the nipper member 38 are automatically bound by the notifier 42. As a result, the thread tie knot is in a state existing at the position between the nipper member 38 and the disk tensioner 40, and the bound yarn is held in the state of being held by the nipper member 38 and the disk tensioner 40, respectively.

Moreover, the method of that excepting the above can also be considered in the method of binding the thread end which remained on the said yarn supply bobbin and the krill. The above example is a method of binding the thread stretched to each of the nipper member 38 and the disk tensioner 40 by the notch 42, but the notch 42 directly sucks the front end of the thread from the thread supply bobbin 12, and the disk It is also possible to bind the thread held on the tensioner 40. In this case, the strapped thread is positioned between the nipper member 38 and the disk tensioner 40 by the knot 42 or a member of a separate configuration, and the strapped thread is the first nipper member. It is kept at 38. In this way, the thread front end of the newly arranged thread supply bobbin and the thread end remaining in the previous thread supply bobbin are bound by the strapping device, and the thread front end of the new thread supply bobbin 12 and the remaining thread end of the previous thread supply bobbin are attached. Each of the nippers 38 serving as the first retainer and the disk tensioner 40 serving as the second retainer can be held. After that, it is confirmed by the thread binding apparatus 10 that the thread is reliably bound.

The thread strap detection device 10 operates each device such as a drive actuator or a sensor through a controller (not shown) by a signal such as a thread strap completion signal from a thread strap device or a push button operation when confirming a thread strap. In addition, a series of strap detection operations for applying tension to the yarn is started. The rod 34 is lowered in advance by the drive actuator 15, the rod 34 is waited at the position indicated by the dashed-dotted line in the drawing, and the tensioning lever 18 is waited at the position A in the figure. Let's do it. The rod 34 is raised by driving the drive actuator 15, and the tensioning lever 18 rotates clockwise with its own gravity about the shaft 28, so that the nipper member 38 and the disk tensioner ( It contacts this thread, descending toward the thread 16 hold | maintained between 40). At this time, the force generated in the seal 16 by the gravity of the tensioning lever 18 itself is weaker than the holding force of the nipper member 38 and the disk tensioner 40, and is set in advance to a force suitable for the detection of a poor thread binding. do. When the tie knot 16a of the thread by the notch 42 is completed, the thread 16 bears the weight of the tensioning lever 18, and the tensioning lever 18 is coupled to the thread 16 to be engaged. The engagement of the 26 and the riser 36 becomes the position of FIG. B.

However, when the thread cannot be bound or is incompletely bound, the thread 16 is loosened only by the gravity of the tension applying lever 18. Thus, the tensioning lever 18 is lowered to the position of the dashed line C of FIG. 1A while the engaging portion 26 and the rising portion 36 remain coupled to each other. As described above, the rod 34 is driven to the thread 16 bound between the two holding members to contact the tension applying lever 38, which is a tensioning member, to apply a predetermined tension. By driving the drive actuator 15, the tensioning lever 18, which is a tensioning member, is displaced in the direction of engagement with the thread, and predetermined by engagement with the tensioning lever 18 and the thread bound between the two holding devices. And a relative motion occurs between the rod 34 and the tensioning member by the tensioning state.

When the tensioning lever 18 rotates to the position of C, the detection piece 24 opposite to the tensioning lever 18 is detected in proximity to the proximity sensor 32 provided in the frame 14, and the failure binding detection signal is detected. The winding device receives this signal and stops the operation. Then, the loose thread is bound again by the human hand or the notifier 42, thereby preventing problems due to correction and error such as a strap miss. In this way, the proximity sensor serving as the detection means can detect the tensioning state by detecting the relative motion of the tensioning member constituting the tensioning means.

In connection with this operation, for example, as shown in FIG. 2, the thread binding detection device 10 provided for each thread supply bobbin arranged up and down simultaneously detects the thread supply bobbin. In Fig. 2, the tensioning lever 18 in most of the actual strap detection devices 10 stays at the operating position B representing the perfect strap. However, as shown by the thread supply bobbin 12a, when the strap is incomplete, the tensioning lever 18a of the corresponding thread strap detecting device 10 falls to the operation position C indicating that the thread strap is incomplete. In addition, it is preferable to perform detection by the thread binding detector 10 immediately after the thread binding process by the notifier 42 is completed for each column of the thread supply bobbin 12. Each time the notch 42 moves to the next row, the failing point is known. As a result, the strapping operation of the notifier 42 is changed, so that the strapping process can be performed again only at the point of failure of the strapping.

The thread binding detecting apparatus 10 according to the present embodiment includes a tensioning means for driving the tensioning member and a detecting means for detecting the tension state, and makes contact with the thread bound between the two holding devices, and as a result, a tension of a predetermined size. Is given to the yarn, and the detection means detects the tension state applied to the yarn by the tensioning means. The strap knot, which is difficult to visually check for completeness, may be brought into contact with the tensioning lever 18 to detect the position of the tensioning lever and apply a predetermined amount of tension to the strap knot. Therefore, it is possible to easily and surely determine whether the tension is applied, that is, whether the strap is complete. The incomplete strapping state can be detected because an imperfectly bound thread is naturally loosened or worsened by applying an appropriate amount of tension to the strap knot. Therefore, the operation loss without starting to find the thread binding defect as in the prior art, the end of the thread reaches the downstream, and accordingly a loss of work such as requiring a large amount of labor to re-bind the thread end of the next thread supply bobbin 12 Can be prevented in advance.

Since the tension applied to the thread 16 is acted on by the gravity of the tensioning lever 18 itself, the tension can be easily set by adjusting the gravity of the tensioning lever 18. In addition, since the plurality of tensioning levers 18 are driven to one rod 34, the number of driving actuators can be reduced, and as a result, the configuration required for tensioning can be simplified. In addition, since the thread end in the state of poor thread binding is held by the nipper member 38 and the disk tensioner 40, the operator can easily calibrate without the trouble required to find the thread end. In addition, since it is possible to easily determine whether or not the thread binding is complete, the automatic thread binding system using a noter can be adopted. In addition, as described above, the drive actuator 15 as the driving means drives the tensioning lever 18 as the tensioning member and moves in the actual engagement direction, so that the relative movement of the rod 34 and the tensioning member is in the tensioning state. While the thread, which is generated and bound between the two holding elements, is engaged with the tensioning lever 18, a tension of a predetermined size is imparted to the yarn, and as a result, the overall structure can be simplified. In addition, since the tension given is not higher than the preset tension, the cutting of the thread does not occur due to excessive tension or the like. For this reason, it is possible to efficiently replace the old thread supply bobbin 12 with a new thread supply bobbin. As described above, after the detection of the strapping state, the drive actuator 15 drives the tensioning lever 18 again to return to the original position A. At this time, the tensioning lever 18 operates the winding device, that is, simultaneously. No actual draw operation is performed.

Next, a second embodiment of the present invention will be described with reference to FIG. Here, the same parts as in the previous embodiment will be denoted by the same reference numerals and description thereof will be omitted. In the seal strap detecting device 50 shown here as an example, the tension applying member 61 and the detection means are disposed on the rod 34 extending in the vertical direction.

The rod 34 driven up and down is disposed with an arm 52 extending horizontally corresponding to the actual supply bobbin. The arm 52 is formed with an insertion portion 68 which is a hole for inserting and holding the tension applying member 61. Base end portions 54 and 56 are disposed at positions opposite to the insertion portion 68, and photoelectric sensors for outputting signals according to the movement of the tension applying member 61 are disposed at the base end portions. The insertion portion 68 and the base ends 54 and 56 are integrally formed with the rod 34. Further, the light emitter 58 and the light receiver 60 constituted by the photoelectric sensor as the detection means are arranged at the base ends 54 and 56 in a state of facing each other. The light projector 58 and the light receiver 60 together form an optical axis.

The tension imparting member 61 includes a light blocking member 62, a coupling portion 66 opened downward like a reverse V-shape, a light blocking member 62, and a support portion 64 connecting the coupling portion 66. Coupling portion 66 and support portion 64 are formed integrally with each other. The light blocking member 62 and the support part 64 are detachably attached to each other by a connection method such as a screw. Therefore, the tensioning member 61 can be inserted into the insertion portion 68 of the arm 52. After the support 64 is inserted into the insertion portion 68 of the arm 52, the end of the support 64 is attached to the light blocking member 62. A cylindrical light blocking member 62 or the like is disposed between the light projector 58 and the light receiver 60. The thread 16 drawn out from the thread supply bobbin 12 is arranged to intersect the engaging portion 66 below the center of the engaging portion 66. In addition, the inner diameter of the insertion portion 68 is formed larger than the outer diameter of the support portion 64 can move up and down in the state in which the tension imparting member is engaged with the thread. A plurality of light blocking members 62 having substantially different weights may be provided to freely set the tension given by combining various light blocking members 62 according to the type of yarn.

Next, the operation of the actual binding detecting device 50 will be described. First, the rod 34 is driven upward for the operation of the notch 42, and the coupling portion 66 is set to the upper standby position, and as a result, an element that is obstructive to the operation of the notch 42 can be removed. Further, in this driving operation, the bottom surface of the light blocking member 62 contacts the arm 52 so that the rod 34 and the tension applying member 61 move integrally without relatively moving. The yarn held by the two holding devices (not shown) is then bound by the operation of the notifier 42.

After the operation of the notifier 42, the rod 34 moves downward to check the binding state of the seal 16. At this time, the rod 34 is further moved to a predetermined position determined in consideration of the movement range of the tension applying member 61, that is, the moving distance of the support 64, so that the coupling portion 66 is out of the predetermined actual contact position. Move. The rod 34 is then stopped at a predetermined position. In this case, when the strapping state of the notch 42 is good, the coupling part 66 contacts with the downward movement of the rod 34 to support the weight of the tensioning member 61. Therefore, the tension imparting member 61 is in a state of staying. Then, the tensioning member 61 moves relatively through the insertion portion 68 of the rod 34 and is located between the light emitter 58 and the light receiver 60, so that the light from the light emitter 58 Block it. Accordingly, the light receiver 60 can detect that the strapped state 16 is good.

However, when the strap is not made or becomes poor, the thread 16 is released by the weight of the tensioning member 61. The light blocking member 62 then moves downward with the arm 52 and is supported by the arm 52. In this case, the light blocking member 62 does not move relative to the arm 52 and does not block the optical axis between the light projector 58 and the light receiver 60. Therefore, the light receiver 60 continuously receives the light from the light emitter 58 to detect that the strapping state is poor. The receiver 60 displays the strap state failure information based on the strap detection signal. Receiving this information, the take-up device stops working. The actual binding detection apparatus 50 according to the present embodiment has the same effect as the actual binding detection apparatus according to the first embodiment. In other words, it is possible to reliably determine whether or not the good binding state is difficult to be judged by appearance.

Next, the form which displays the actual binding detection result detected by this invention is demonstrated with reference to FIG. Here, the same parts as in the above embodiment are denoted by the same reference numerals and description thereof will be omitted. In each frame 14 extending vertically, the indicator 70 which displays the strap detection result of the thread strap detection apparatus is arrange | positioned in the vicinity of the thread supply bobbin 12. As shown in FIG. Each indicator 70 is provided with a reset defective display lamp 72 and a reset button for extinguishing the defective bond display lamp 72.

Next, the operation of the indicator will be described. First, when a strap failure is detected by the yarn strap detection device after the operation of the notifier 42, the corresponding yarn strap failure display lamp 72 near the thread supply bobbin 12 lights up, and this operation process is performed as follows. . That is, the strap failure signal is stored in the flip-flop (not shown), and the display lamp corresponding to the actual supply bobbin 12 in the defective binding state is turned on at the output of the flip-flop. This will, for example, retry strapping by hand. When the strapping operation is completed, the reset button 74 is pressed to reset the flip flop to extinguish the strap failure display lamp 72. Then, the strapping operation is again checked by the thread binding device or the thread 16 is pulled out again.

In this way, according to the thread binding detection apparatus having the indicator 70, it is possible to visually detect the thread supply bobbin 12 that is not thread bound. In addition, corrective maintenance can be performed in an efficient order in consideration of the occurrence position of the actual binding defect. In addition, it is possible to reliably prevent the maintenance work from being skipped by manipulating the display of the actual supply bobbin after the maintenance work is terminated. In particular, by arranging the indicator 70 in correspondence with the actual supply bobbin 12, the operator can efficiently perform the maintenance work in order in consideration of the occurrence position of the defective binding defect.

Incidentally, the apparatus for detecting a solid binding state in krill according to the present invention is not limited to the above embodiment. The tensioning member can be in any shape as long as the tensioning member can impart a predetermined amount of tension to the yarn. Therefore, it is also possible to press a flexible tensioning lever, such as a leaf spring, to the seal to detect a portion of the deformed leaf spring with a proximity sensor. In this case, by applying a tension corresponding to the tensioning lever (the driving amount of the rod), the detection device may determine the tensioning state in a predetermined deflection state. There is also a method of detecting, by a proximity sensor, a coupling member approaching while the coil spring deforms by pressing on a thread held by the coil spring.

In addition, a self-propelled robot is attached to the krill, and a pair of thread binding detectors or a plurality of thread binding detectors are disposed on the robot to detect the state of the thread binding, and each time the strapping state of the thread supply bobbin is completed. The self-propelled robot can be moved continuously to the actual supply bobbin. One of the tensioning means and the detecting means may be arranged on the krill to correspond to each thread supply bobbin, and the other of the tensioning means and the detecting means may be arranged singularly or plurally in the self-propelled robot attached to the krill. have. In this case, the self-propelled robot detects the strapping condition while moving continuously. Moreover, the detection apparatus can also be a type which detects the presence of a yarn.

The detection means of the detection device may be either an electrical device or a mechanical device. Examples of the electrical detection means include contact sensors such as a distortion sensor, limit switch, and the like, and noncontact sensors such as a proximity switch and a photoelectric sensor. The detection means can be attached anywhere, such as a rod or a frame of a krill.

Regardless of the control method after detection or the display method of the display means, collective display (graphical display) can be performed by one display device, or can be displayed by display devices provided near the actual supply bobbins, respectively. The display method of the display means may be any one of a mechanical display for raising the display flag and the like, and an electrical display such as turning on an indicator light. The configuration from the detection of the tension applied state by the detection means to the display of the indicator can be any. In addition, the detection signal transmission method may be any of wired, wireless, and optical methods.

The tension applied to the thread can be simply changed by adjusting the weight of the tensioning member. If the tensioning member is coupled to the thread and the thread tensioning member is detected to reduce the self-gravity of the tension-bearing member on the thread, a tension greater than its own gravity is not applied to the thread, for example, a drive It is possible to prevent an accident in which the thread is cut due to an excessive tension applied to the thread due to an error or the like.

Further, the rod drive actuators may be integrally installed for each individual rod or collectively for several rods. In addition, one rod driving force may be transmitted to the tensioning member through a separate direction of motion conversion member. The direction in which the tensioning member is applied to the yarn may be in the vertical direction or in the horizontal direction.

The krill thread strap detecting device of the present invention is provided with a tensioning means for contacting a tensioning member to a strapped thread held in a state held by two holding devices after the thread binding, and applying a predetermined tension to the thread by the tensioning means. Since the detecting means for detecting the tensioning state is provided, the tensioning state of the bound yarn can be detected. When the thread strap is completed, the bound thread is brought into a tensioning state which is subjected to a pressing force from the tensioning member. In addition, if the thread bond is not or poor, the thread is released by the pressing force of the tension imparting member, so that the tension is not imparted to the thread, and as a result, there is no thread to which the tension is applied. Therefore, it is possible to reliably detect the strapping state, which is difficult to visually determine whether the tension is imparted when the tensioning member detects the tensioning state while the tensioning member is in contact with the thread while providing a tension of a predetermined size to the thread. have.

When the tension is applied by the self-gravity of the tension imparting member, the weight of the member can be changed to appropriately adjust the imparted tension. Further, as described above, if the tensioning member can be moved relative to the driven rod, there is no risk that a tension greater than the set value will be applied to the strap chamber held by the retainer. In addition, if the detection result of the detection means is displayed, the calibration maintenance work can be efficiently performed. In addition, it is possible to easily detect a strap failure by operating the thread strap detecting device before the winding device is operated to simultaneously pull out the strap room. Therefore, as in the prior art, it is possible to easily repair the strap failure without spending a lot of labor and time for corrective repair work, that is, to find the end of the already wound thread and bind the thread.

Claims (9)

As the binding strap detection apparatus 10, 50 which detects the binding strap state of the krill 13, A strap device 42 for binding the end of the remaining thread 16 of the first bobbin to be replaced with the end of the thread 16 derived from the new second bobbin to be mounted thereon; A first holder (40) holding the thread end of the first bobbin (12), A second retainer 38 for holding a thread end derived from the second bobbin 12, Tensioning means for imparting a tension of a predetermined size to the thread by bringing the tensioning member into contact with the strap thread 16 held by the first and second retainers 40 and 38, respectively; Detecting means (24, 32, 58, 60, 62) for detecting the tension state imparted to the yarn by said tension imparting means; Creel strap detection device characterized in that it comprises. The method of claim 1, And said tensioning means imparts tension to the thread (16) by imparting the weight of said tensioning member to the bound thread. The method of claim 2, The tension imparting means is A rod 34 slidably supported by the krill 13 and moving in the longitudinal direction of the rod 34 through a driving means 15, The tensioning members (18, 64) that can be coupled to the rod (34) while having a coupling portion (66) capable of engaging with the bound thread (16) Equipped, The tension imparting members 18, 64 are displaced in the actual engagement direction by the driving means while engaging with the rod 34, When the tension imparting members (18) and (64) are engaged with the threaded seal (16), they are separated from the rod (34) to move relative to the driven rod (34). . The method of claim 3, When the tensioning members 18 and 64 are engaged with the bound yarn 16, the tensioning members 18 and 64 reduce the action force on the rod 34, and impart a predetermined magnitude of tension to the bound yarn 16 so that the rod ( A krill binding strap detection device, characterized in that it is relatively moved relative to (34). The method of claim 1, And said tension imparting means and said detecting means (24, 32, 58, 60, 62) are disposed on said first bobbin and said second bobbin (12), respectively. The method of claim 1, And the detecting means (24, 32, 58, 60, 62) detects the tensioning state by detecting the movement of the tensioning member (18, 64). The method of claim 6, The detecting means includes a detecting piece 24 attached to the tensioning member 18 and a sensor 32 attached to the rod 34 to detect the position of the detecting piece 24. Seal detection device of krill to make. The method of claim 6, The detecting means includes a light shield 62 attached to the tensioning member 18 and a light emitter 58 and a light receiver 60 attached to the rod 34 with the light shield interposed therebetween. Seal detection device of krill to make. The method of claim 1, The yarn strap detection device (10, 50) is the krill strap detection device, characterized in that the operation after the operation of the strap device 42 before drawing out the thread 16 at the same time.