JPH0761829B2 - Winding machine for spinning - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a spinning winder for winding a fragile yarn.

[Conventional technology]

The applicant of the present application previously supported flangeless bobbins on a pair of spindles arranged on the same axis and rotating in the same direction in synchronization with each other so that the end surfaces of the flangeless bobbins approach each other. After the fragile yarn pulled out by the pull-out roller is wound on the flangeless bobbin via the dancer roller, and after the fragile yarn is wound on the one flangeless bobbin, the traverse device is reciprocally driven. A winding machine has been proposed in which the yarn is transferred along a guide bar along the axial direction of the spindle, and the yarn is automatically rewound on the other flangeless bobbin to continuously wind the yarn (Japanese Patent Laid-Open No. 61-61). No. 211279).

[Problems to be solved by the invention]

In the above-mentioned conventional means, since the dancer roller is hooked up when the thread is hooked, in the case of a fragile thread, there is a drawback that the thread cannot be withstood and the thread is cut. In addition, the previously proposed one, when the thread is automatically switched from the full bobbin to the empty bobbin, that is, from the portion with a large winding diameter (the state in which it is wound around the package outer circumference of the full bobbin), the winding diameter is suddenly increased. Since it switches to a smaller part (a state in which it is wound around the outer circumference of an empty bobbin whose peripheral speed is smaller than that of the former), the dancer roll moves rapidly in the direction of acceleration of the spindle, and the spindle speed increases rapidly. Since the thread tension changes abruptly, there is a problem that thread breakage occurs.

It is an object of the present invention to provide a spinning winder that solves such a problem.

[Means for solving problems]

In order to achieve such an object, the present invention has a flangeless bobbin that winds a fragile thread drawn out by a drawing roller through a dancer roller onto a pair of spindles arranged on the same axis, and the end faces of the flangeless bobbin of each other. And a reciprocating drive means for moving a traversing device including at least a traverse cam roll and a yarn guide along a guide bar along the axial direction of the spindle. At
A ratio setter for setting the speed ratio between the peripheral speed of the pull-out roller and the peripheral speed of the bobbin of the winder, and a speed setter for adjusting both peripheral speeds while maintaining the set ratio set by the ratio setter. And a control means for detecting the fluctuation of the yarn tension due to the change of the substantial winding diameter of the bobbin by the shift of the dancer roller and correcting the spindle rotation speed so as to maintain the speed ratio, and the traverse device. , A taper end mechanism for winding the yarn on the taper end by reducing the swing width of the yarn guide to a fixed amount for each specified counter of the first preset counter that measures the number of rotations from the start of winding the spindle, and A second preset counter that counts the number of repetitions every time the preset counter counts up is provided, and the count-up signal of the second preset counter is used. And wherein the operating the reciprocating drive means for shifting the spindle side next performs the winding of the yarn traverse device.

[Work]

In the present invention, the dancer roller is fixed by setting the ratio of the rotation speed of the drawing roller driving servo motor to that of the spindle driving servo motor so that the peripheral speed of the drawing roller during bobbin threading and the peripheral speed of the bobbin become equal. It is kept in a position so that it does not operate, and the dancer roller does not work until it is accelerated to a certain winding speed. Speed up.

When the take-up speed is increased to a predetermined take-up speed, the traverse device is moved to the take-up spindle side by the signal of the manual push button, the take-up operation is performed, the take-up is performed, and the take-up diameter increases. On the other hand, the peripheral speed of the winding body increases, and accordingly the dancer roller gradually operates, and according to the instruction of the super analog sensor, the setting of the ratio setting device is automatically adjusted and the peripheral speed of the drawing roller and the winding speed are adjusted. The peripheral speed of the thread is always kept equal.

Once normal operation is started, the number of spindle rotations is counted by the first preset counter, for example, a pulse is issued every 1000 counts, the synchronous motor is driven, the builder cam is rotated to a fixed angle, and the groove cam is tilted. By reducing the traverse width of the yarn guide, both end faces of the wound yarn body are tapered.

This operation is repeated, for example, 48 times, and the number of repetitions is counted by the second preset counter for each count up of the first preset counter, and a pulse is issued at the same time as the count up of the second preset counter. The clutch brake is turned off, the traverse motion is stopped, and at the same time, the solenoid valve of the traverse head transfer device is switched, and the traverse device is transferred to the spindle side for the next winding, whereby continuous winding is performed. When the traverse device is moved from the position facing the full bobbin to the position facing the empty bobbin to change the yarn, the fragile yarn is not attached to the taper surface of the package wound on the full bobbin. As the thread is wound, the taper is wound around the outer circumference of the full-winding bobbin while gradually reducing the winding diameter according to the taper, and is wound around the end of an empty bobbin having the same diameter as it is.

At this time, the rotation speed of the spindle corresponds to the peripheral speed at the time of full winding and is slowed down. Therefore, when the traverse device shifts to the spindle for the next winding, it is necessary to increase the rotation speed of the spindle. However, since the winding body is tapered, the dancer roller gradually works while the traverse device slowly moves, and the spindle is accelerated without loosening the yarn.

〔Example〕

 Embodiments of the present invention will be described with reference to the drawings.

Spindles (3) are provided at the upper ends of a pair of support arms (2) (2 ') that are provided on the machine base (1) so as to rotatably support their roots.
(3 ') is supported horizontally, and both spindles (3) (3')
Were located on the same axis.

The supporting arms (2) and (2 ') are loosely fitted to the sleeve (5) fixed in the horizontal direction across the fixing members (4) and (4') provided on the machine base (1). It can be set up and down freely,
As shown by the solid line in the figure, the yarn a is attached to one of the bobbins (6) (6 ') attached to each spindle (3) (3') with the supporting arms (2) (2 ') standing upright. So that
If necessary, the support arms (2) and (2 ') are tilted horizontally so that the fully wound bobbin can be taken out as shown by the phantom line in FIG. In the upright state at the time of threading, the position is stabilized by the pressing spring (8) attached to the bracket (7).

The drive servomotor (9) installed on the machine base (1) drives the clutch brakes (12) and (13) via the timing belts (10) and (11), and the clutch brake (12) drives the timing belt (14). ) Is used to drive a pulley (16a) rotatably loosely fitted to one end of a shaft (15) inserted through the sleeve (5), and fixed from the other clutch brake (13) to the shaft (15). Link the pulley (16b) with the shaft (1
5) is driven to rotate the left spindle (3) in FIG. 2 from the loose fitting pulley (16a) via the belt (17) and the pulley (17a), and is also fixed to the other end of the shaft (15). The right spindle (3 ') is rotated from the pulley (18) via the belt (19) and the pulley (19a).

Spindle (3) arranged on the same axis as described above
A traversing device (20) for the supplied yarn a was provided on the machine base (1) at the side of (3 ').

As shown in FIG. 5, the traverse device (20) is a yarn a which repeats reciprocating motion along the direction in which the spindles (3) and (3 ') are arranged in association with the rotation of the traverse cam (21). Guide bar (64) and yarn guide (65), and the traverse device (20) is a guide bar provided in parallel with the arrangement direction of the spindles (3) and (3 ') as shown in FIG. (22) and a support base (23) that is movably installed along the ball spline shaft (25), and the air cylinder mechanism (2
By connecting to the operating piston rod (24a) of 4), press the push button (83) at a suitable time, for example, at the time when the waste winding is finished at the time of the first thread hooking, and drive the piston rod (24a) by the push button signal. The traverse device (20) can be moved along the arrangement direction of the spindles (3) and (3 ').

The guide bar (2) installed on the fixing members (26) (26 ')
2) Spline shaft (2) with support (23) loosely fitted parallel to
5) is rotatably installed, and a pulley (27) rotatably supported on one side of a support (23) is inserted through the spline shaft (25) for spline engagement. 28) to rotate the intermediate pulley (29), and to rotate the pulley (32) fixed to the shaft end of the traverse cam (21) from the pulley (30) at the other end of the shaft via the belt (31). Drive the traverse cam (21) by means of the driving servomotor (9) through the belt (33) to drive the clutch brake (34), and the clutch brake (34) to drive the belt (35). The pulley (36) provided at the end of the spline shaft (25) is driven via the spline shaft (25) to drive and rotate the traverse cam (21) at a set speed via the spline shaft (25).

On the other hand, in the traverse operating mechanism, as shown in FIG. 4, a long groove (39) in the traverse direction provided in the groove cam piece (38) for controlling the traverse width by tilting is provided at one end of the swing piece (40) in the long groove (39) in the traverse direction. One of the pins (41) (42) (41) is loosely fitted so as to move along the long groove (39), and the other end of the pin (41) is
The other pin is loosely engaged with a groove (44) perpendicular to the traverse direction provided in a slide piece (82) that moves in the traverse direction along the guide shaft (43) in association with the rotation of the traverse cam (21). The (42) is rotatably loosely engaged with a regulating slide piece (45) that moves along the guide shaft (43), and a pin (46) provided on the other end of the swing piece (40) is further attached. The guide holder (64), which moves in the traverse direction along the guide shaft (47), is loosely engaged with a groove (63) provided at a right angle to the traverse direction, and the yarn guide (65) is attached to the guide holder (64). When the traverse cam (21) is driven, the slide piece (82) reciprocates a predetermined amount on the guide shaft (43) and swings through a pin (41) which is loosely engaged with the longitudinal groove (44). With the moving piece (40) in the same direction, the pin (46) and the groove (63) above the swinging piece (40).
The guide holder (64) engaged with the guide guide (65) is moved along the guide shaft (47) to traverse the yarn guide (65). At this time, the regulating slide piece (45) engaged with the pin (42) is also included. The yarn is wound while moving on the guide shaft (43) together with the slide piece (82). The groove cam piece is rotated by rotating the actuating lever (49) engaged with the groove (39) at the end of the long groove (39) of the groove cam piece (38) as the winding diameter of the wound thread increases. The (38) is tilted about a support shaft (50) having an intermediate portion thereof as an axis to change the traverse width of the thread guide (65) so as to reduce the traverse width, thereby forming the wound body and both end surfaces into tapered surfaces. I did it.

Further, as described above, the groove cam piece (38) forming the taper end surface of the winding body is tilted according to the increase of the winding diameter by the operating lever (49) engaged with the long groove (39), The rotation of the operating lever (49) detects a pulse from the detector (37) which is generated by detecting the rotational speed of the input shaft from the servomotor (9) for driving the spindle shaft (3) and the traverse cam (21). It is arranged such that it is rotated and counted, and for example, a synchronous motor (51) that rotates every count value 1000 is operated as a drive source. That is, the synchronous motor (51) is provided in the lower device casing of the traverse device (20) as shown in FIG.
One end of a lever (57 ″) that rotates about (57 ′) as a fulcrum on the circumferential surface of a cam (55) on a shaft (54) that rotates from the drive shaft (58) through gears (52) (53). An operating lever (49) that contacts the trochanter (57) provided on the upper end of the lever (57 ″) and rotates the upper end of the operating rod (56) about the above (49 ′) as a fulcrum.
Connected to one end of. The synchronous motor (51) has a cam disk (59) having a notch (60) on its peripheral surface fixed to its output shaft (58), and an opening / closing actuating piece (62) of a limit switch (61). 60), and when the operating piece (62) rushes into the notch (60), the circuit of the synchronous motor (51) is opened and stopped, and the pulse division count value is set as described above. When it reaches the value, the synchronous motor (51) starts to rotate, and the cam disc (5
When the 9) makes one revolution, the operating piece (62) is inserted into the notch (60) so that the motor (51) automatically stops, and the cam (55) on the shaft (54) is kept constant every rotation. The traverse width of the thread guide (65) is reduced by rotating the rod to an angle to lower the operating rod (56) that is in contact with its peripheral surface and tilting the groove cam piece (38) via the operating lever (49). I was allowed to.

The winding thread a is wound around the bobbins (6) and (6 ') via the independent drawing roller (66) and the dancer roller (67).

FIG. 6 is a block diagram of the controller of the winder of FIG. The speed setting voltage supplied to the amplifier (71) by the speed setting device (70) is divided by the ratio setting device (69) and supplied to the amplifier (72) via the dancer roller analog sensor (68) for rotation. The speed ratio can be adjusted, and the dancer roller analog sensor (68) has a ratio setting device (6) when the dancer roller (67) is located above.
The voltage divided by 9) is supplied to the amplifier (72), and when the dancer roller (67) is pulled down by the thread, the voltage divided by the ratio setting device (69) is further divided by the dancer roller (67). ) Is modulated in proportion to the amount of movement, and a speed setting voltage corresponding to the position is supplied to the amplifier (72).

The peripheral speeds of the draw-out roller (66) and bobbin (6) during threading are
Set the ratio of each rotational speed to 1: 1 with the ratio setting device (69) and start it, then use the dial of the speed setting device (70) to set the ratio of each peripheral speed described above until the specified speed is reached. If you keep it, gradually increase the speed. Push button (8
3) Operation of the traverse head transfer device solenoid valve (8
1) is switched, and then the traverse device (20) is moved to the spindle side for winding. The traversing device was set to start traversing as soon as the transfer was completed.

After the normal operation, the peripheral speed of the winding body (85) increases as the winding diameter of the winding body (85) increases, but the tension of the thread is detected by the dancer roller (67). , The ratio is adjusted by the ratio setting device (69) through the dancer roller analog sensor (68), the peripheral speed of the winding body (85) is kept constant, while the spindle rotation is controlled by the first preset counter (76).
And pulse is generated every 1000 counts, for example, to rotate the builder cam (55) and tilt the groove cam piece (38) to shorten the traverse width, and at the same time the second preset counter (77).
When the second presett counter that counts the number of repetitions is counted up, a pulse is emitted, the electromagnetic clutch (34) of the traverse device is cut, the traverse operation is stopped, and the solenoid valve (81) of the traverse head transfer device is switched. At the same time when the shaking device is moved to the spindle side for the next winding,
The last pulse of the preset counter causes the builder cam (55) to rotate exactly once, the trochanter (57) at one end of the lever (57 ″) falls to the bottom of the builder cam, and the operating rod (56) moves upward. Then, the groove cam piece (38) was tilted so that the traverse width was widened to the starting state.

〔The invention's effect〕

According to the present invention, a ratio setting device for setting the speed ratio of the peripheral speed of the drawing roller and the peripheral speed of the bobbin of the winder,
A speed setting device for adjusting both circumferential speeds while maintaining the set ratio set by the ratio setting device is provided, and the fluctuation of the yarn tension due to the change of the actual winding diameter of the bobbin is detected by the rearrangement of the dancer roller. Since the control means for compensating the spindle speed to maintain the speed ratio is provided, the peripheral speed of the draw-out roller and the peripheral speed of the bobbin can be made the same, and the dancer roller can be fixed at the first threading time. It is possible to maintain the position, eliminate the hunting phenomenon of the dancer roller, and eliminate the breakage of the fragile yarn due to tension fluctuation. Moreover, when the traverse device is moved from the position facing the full bobbin to the position facing the empty bobbin by the reciprocating driving means to change the yarn, the fragile yarn is packaged on the full bobbin. While the thread is wound on the tapered surface of the bobbin, the taper is wound around the outer circumference of the full bobbin while gradually reducing the winding diameter in accordance with the taper, and is wound on the end of the empty bobbin having the same diameter. At times, the change in thread tension becomes extremely small, and the abrupt fluctuation of the dancer roller that accompanies this is alleviated, resulting in elimination of fragile thread cutting.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a spinning winder of the present invention,
FIG. 2 is a front view of the same, FIG. 3 is a plan view of a traverse transfer device, and FIG.
FIG. 5 is a front view of the traverse device, FIG. 5 is a side view of the traverse device, and FIG. 6 is a block diagram of the controller of the winder. a: thread, 6 ... bobbin 3 ... spindle, 20 ... traverse device 66 ... draw-out roller, 67 ... dancer roller 69 ... peripheral speed ratio setting device, 70 ... speed setting device 76 ... 1st preset counter 77 …… 2nd preset counter 83 …… Push button, 84 …… Builder device

Claims (2)

[Claims] 1. A flangeless bobbin for winding a fragile thread drawn out by a drawing roller through a dancer roller so that the end surfaces of the flangeless bobbins approach each other on a pair of spindles arranged on the same axis. In the spinning winder, the traverse device, which is held and includes at least a traverse cam roll and a yarn guide, is moved along a guide bar along the axial direction of the spindle. A ratio setter that sets the speed ratio between the peripheral speed of the roller and the peripheral speed of the bobbin of the winder, and a speed setter that adjusts both peripheral speeds while maintaining the set ratio set by the ratio setter With
A control means is provided for detecting the fluctuation of the yarn tension due to the change of the actual winding diameter of the bobbin by the shift of the dancer roller and correcting the spindle rotational speed so as to maintain the speed ratio, and the traverse device is provided with a spindle winding device. A taper end mechanism is provided for winding the yarn around the taper end by reducing the swing width of the yarn guide to a fixed amount for each prescribed counter of the first preset counter that measures the number of rotations from the start of take-up, and
A second preset counter that counts the number of repetitions each time the preset counter is counted up is provided.
A spinning winder, wherein the reciprocating drive means for moving the traverse device to a spindle side for winding the yarn next is operated by a count-up signal of a preset counter. 2. The winding machine for spinning according to claim 1, wherein the reciprocating driving means for moving the traverse device to the spindle side for winding the yarn next is operated by a push button signal.