JPH1181054A - Multiplex twister - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of a failure in traversing and ribbon-like (or rope-like) winding from coming into being throughout a period of a shutdown process even in the case of driving both a traversing gear and a drum with a common drive by varying a traversing speed of the traversing gear with an infinitely variable gear so as to synchronize it with the revolution of the drum. SOLUTION: This multiplex twister 1 has a spindle 2 and a winder 3 in each working station. A drum-driving mechanism B and a traversing gear- driving mechanism C are driven by a drive motor 5 being an induction motor through a variable speed belt mechanism 12, a speed reducer 13 and an infinitely variable gear 14. A twisted yarn is wound into a package P while applying the disturbing function to the mechanism C. And when trying to stop the twister, the traversing speed of a traversing gear 11 is reduced under the maintenance of a predetermined relation with the revolution speed of the drum 9 to make both the traversing gear and the drum stop simultaneously.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multiple twisting machine for driving a drum for rotating a winding package and a traverse device for traversing the twisted yarn wound by the winding package by common driving means. About.

[0002]

2. Description of the Related Art Conventionally, a double twisting machine, which is a typical example of a multiple twisting machine, puts a yarn unwound from a yarn supply package into a spindle rotating at a high speed, and applies tension to the spindle by a tension device as needed. The twist is given while ballooning with the attached rotating disk, the twisted yarn is sent to the traverse device for traversing by the feed roller, and the traversing yarn is wound and wound on the bobbin that rolls on the rotating drum. Package.

The drive system of this double twisting machine is shown in FIG.
As shown in (1), the output of the first motor 81 driven by a command from the controller 80 is transmitted by a drive system including a plurality of pulleys, belts, and reduction gears to drive the spindle 82, the feed roller 83, and the drum 84. However, the traverse device 85 is driven by transmitting the output of the second motor 86 driven by a command from a separate controller 80 by a drive system including a plurality of pulleys, belts, and cam boxes. When an induction motor that rotates according to the output frequency from the inverter 87 is used as the second motor 86,
Since acceleration and deceleration can be freely performed, ribbon break is performed by a disturbance function in which the rotation speed of the induction motor is periodically switched between an upper limit value and a lower limit value, and the traverse device 85 is driven at a traverse speed that is periodically changed. be able to.

[0004]

However, in the conventional multiple twisting machine, the first motor 81 for driving the drum 84 is used.
And the second motor for driving the traverse device 85 is provided independently. If the outputs of the motors 81 and 82 are cut off at the same time when the multiple twisting machine is stopped, the drum device 85 is heavy and has a large inertia force. It stops before 84. As a result, if the drum 84 continues to be driven with respect to the stopped traverse device 85, there is a risk that the twisted yarn will come off from the traverse device 85 and that the yarn twisted in the winding package P will be rod-wound. .

According to the present invention, the traverse device and the drum are driven by a common driving means, and the traverse device is synchronized with the driving of the drum, thereby preventing the twisted yarn from falling and the rod from being wound at the time of stop. It is in.

[0006]

In order to solve the above problems, a multiple twisting machine according to the present invention is characterized in that, in claim 1, a spindle drive system of a spindle device for twisting a yarn, and a winding device for winding a twisted yarn. A traverse drive system of a traverse device for traversing the twisted yarn wound on the take-up package, wherein the drum drive system and the traverse drive system comprise a traverse device. Are connected via a continuously variable transmission means for performing a disturbance by making the traverse speed variable, and are driven by a common driving means. Thereby, when each system is stopped, the traverse speed of the traverse device can be changed so as to be synchronized with the rotation of the drum by the continuously variable transmission means. Further, by continuously varying the traverse speed of the traverse device between high and low speeds by the continuously variable transmission means, the twisted yarn can be wound into a winding package while disturbing.

According to a second aspect of the present invention, in accordance with the first aspect, the continuously variable transmission means gradually increases the traverse speed of the traverse device in accordance with the winding amount of the winding package. The traversing speed is continuously varied between high and low speeds only in the time zone in which the traverse is performed. Thus, if the traverse speed of the traverse device is stepwise accelerated, it is possible to correct the traverse angle that changes according to the winding amount of the winding package, and to continuously increase the traverse speed between high and low speeds during a constant speed period. When it is changed, the twisted yarn can be wound into a winding package while disturbing.

According to a third aspect of the present invention, in the first or second aspect, the continuously variable transmission means is wound around a pair of pulleys connected to the driving means and the traverse drive system, respectively. Endless belt, each pulley has a tapered surface that follows the tapered surfaces formed on both sides of the endless belt, and is composed of two tapered bodies that can freely contact and separate from each other. It is provided with contact / separation means for forcibly contacting and separating the body. Thus, when the distance between the tapered bodies of one pulley is forcibly adjusted by the contact / separation means, the endless belt is changed to have a diameter corresponding to the distance, and the distance between the tapered bodies of the other pulley is changed so as to follow the distance. Since the diameter of the endless belt is changed, the traverse speed of the traverse device can be appropriately changed by the change in the diameter of the endless belt.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A multiple twisting machine according to an embodiment of the present invention will be described below with reference to FIGS.

In FIG. 1, a multiple twisting machine 1 includes a spindle device 2 and a winding device 3 located on the spindle device 2.
And a weight is formed, and the weights are arranged in the right and left back-to-back rows to form an overall weight of 80 to 304. The multiple twisting machine 1 includes a drive motor 5 (drive means), a spindle drive system A driven by the drive motor 5, and a drum similarly driven by the drive motor 5, in addition to the devices 2 and 3. A drive system B, a traverse drive system C, and a controller 6 are provided. The spindle device 2 includes a cover 7 on which the yarn supply package is placed, and a spindle 8 connected to the spindle drive system A. The winding device 4 includes a drum 9 and a feed roller 10 that are driven by a drum driving system B by pressing the winding package P, and a traverse device 11 that is traversed by a traverse driving system C.

The drive motor 5 is an induction motor,
Inverter (not shown) connected to controller 6
Is driven at a rotation speed determined by the output frequency from the motor, drives the spindle drive system A, and drives the drum drive system B and the traverse drive system C via the speed change belt device 12, the speed reducer 13, and the continuously variable transmission 14. .

The spindle drive system A includes a first pulley 15 provided on an output shaft of the drive motor 5 and a drive motor 5.
A belt 19 is wound around the second pulley 16 of the shaft 21 arranged in parallel with the third pulley 17 of the shaft 21 and the fourth pulley 16 of the shaft 21.
A tangential belt 20 is wound between the pulleys 18. The tangential belt 20 is in rolling contact with the spindle 8 of each spindle device 2, and transmits the drive of the driving motor 5 to each spindle 8 by each of the pulleys 15 to 18 and the belt 19 to rotate.

The drum drive system B includes a drive motor 5 and a first
Fifth pulley 22 provided on output shaft between pulleys 15
And a belt 28 wound around a sixth pulley 23 of a shaft 27 arranged in parallel with the shaft 21. The shaft 21 is connected to the seventh and eighth pulleys 24 of the transmission belt device 12 (the continuously variable transmission). , 2
5 is connected to the speed reducer 13 via a belt 29 wound around the speed reducer 13. The speed reducer 13 has a plurality of gears disposed therein. The speed reducer 13 receives a rotational force from an input shaft 30 provided with an eighth pulley 25 of the speed change belt device 12 and decelerates at a constant rate while simultaneously changing the rotational direction. Convert. Also, reducer 13
Has three output shafts 31a to 31c, has a single-axis input and a three-axis output, and has two output shafts 31a and 31 arranged side by side.
The ninth pulley 26 is fitted to each of the b, and the traverse drive system C is connected to the remaining output shaft 31c. Ninth
The tenth pulley 33 fitted to the pulley 26 and the support shaft 32 and the eleventh pulley 35 fitted to the support shaft 34 have a belt 3
6 is wound. The drum 9 is fitted on the support shaft 32 at a predetermined interval, and the feed roller 10 is fitted on the support shaft 34 at a predetermined interval. The output of the driving motor 5 is transmitted to the drum 9 and the support shafts 32 and 34 of the feed roller 10 via the belt 28, the speed change belt device 12, the speed reducer 13 and the belt 36, respectively. Rotate.

The traverse drive system C has a continuously variable transmission 14 connected to a speed reducer 13, and the continuously variable transmission 14 is connected to a cam box 40. Cam box 40
Is connected to a transmission shaft 41 connected to the continuously variable transmission 14 by a gear 42.
And a grooved drum 44 connected by a gear 43 that meshes with the gear 42. A spiral cam groove 45 is formed in the grooved drum 44, and a cam shoe 46 is fitted in the cam groove 45. A reciprocating rod 47 is fixed to the cam shoe 46, and the reversing device 11 is fixed to the reciprocating rod 47 at a predetermined interval. The output of the drive motor 5 is transmitted from the continuously variable transmission 14 to the grooved drum 44 of the cam box 40 via the belt 28, the transmission belt device 12, and the speed reducer 13, and the cam shoe 46 is rotated by the rotation of the grooved drum 44. Move along the cam groove 45, the traverse device 11 is reciprocated and traverses.

In addition to the drive motor 5, the controller 6 includes an input board 60, a reversible motor 53 (contact / separation means) of the continuously variable transmission 14, a control motor 61 of the speed change belt device 12, and a proximity sensor for a drum. 62 and a proximity sensor 63 for traverse. The input board 60 inputs to the controller 6 data such as various conditions of the traverse 11 (twill angle θ, traverse speed v, disturbance width h), number of twists N, number of spindle rotations and number of drum rotations. The proximity sensor 62 is connected to the drum 6
Object 64 on shaft 32 to monitor the actual rotational speed of
And outputs it to the controller 6. The proximity sensor 63 detects the rotation of the detection target 65 of the grooved drum 44 and outputs the detected rotation to the controller 6 in order to monitor the traverse angle θ and the traverse speed v of the traverse 11. The controller 6 determines the driving motor 5 and the reversible motor 53 based on the data input from the input board 60 and the detection fed back from each of the proximity sensors 62 and 63.
And the drive of the control motor 61 is controlled.

Next, a specific configuration of the continuously variable transmission 14 will be described with reference to FIG.
3, an output pulley 51 provided on the transmission shaft 41 of the cam box 40, an endless belt 52 wound between the pulleys 50, 51, and a reversible. Motor (forward / reverse rotation motor) 5
3 is comprised. Each of the pulleys 50 and 51 includes outer and inner washers (tapered bodies) 54 and 55, and the inside of each washer 54 and 55 is formed in a tapered surface. A holder is fixed to the inner washer 55 of the input side pulley 50. Output shaft 56 of reversible motor 53
Is connected to the holder via the clutch 57, and the motor 5
3, the inner washer 55 of the input pulley 50
Is moved in the axial direction with respect to the outer washer 54 fixed to the output shaft 31c. Outer washer 5 of output side pulley 51
5 is provided with a spring box 58, in which an urging spring 59 for urging the outer washer 55 toward the inner washer 55 fixed to the transmission shaft 41 is arranged. Each pulley 50, 51 has a washer 5
An endless belt 52 having tapered surfaces on both sides that follow the tapered surfaces 4 and 55 is wound around.

When the reversible motor 53 is rotated forward, the inner washer 55 of the input pulley 50 is moved toward the outer washer 54 so as to reduce the distance therebetween. The diameter of the winding is increased, and accordingly, the outer washer 54 of the output side pulley 51 is pressed against the inner washer 5 against the spring force of the biasing spring 59.
5, the diameter of the output side pulley 51 around the endless belt 52 is reduced. When the reversible motor 53 is rotated in the reverse direction, the inner washer 55 of the input side pulley 50 is moved so as to increase the distance from the outer washer 54, so that the winding diameter of the endless belt 52 of the input side pulley 50 becomes smaller. Accordingly, the outer washer 54 of the output side pulley 51 is moved by the spring force of the urging spring 59 so as to reduce the distance between the inner washer 55 and the endless belt 52 of the output side pulley 51. The diameter increases. As described above, the continuously variable transmission 14 outputs the output side pulley 51 to the cam box 40 by changing the winding diameter of the endless belt 52 around each of the pulleys 50 and 51 by the forward / reverse rotation of the reversible motor 53. By changing the rotation speed, the traverse speed of the traverse device 11 is varied via the cam boss 40.

The multiple twisting machine 1 of the present invention is configured as described above. Next, the operation of the multiple twisting machine 1 will be described.

The controller 6 receives from the input board 60 data such as the spindle rotation speed, the drum rotation speed, the traverse angle θ for the traverse device 11, the traverse speed v, the disturbance width h of the twisted yarn, and the like. The driving motor 5 is driven on the basis of this. When the drive motor 5 is driven, its output is transmitted to the spindle device 11 via the spindle drive system A, and the yarn unwound from the yarn supply package enters a tension device (not shown) and has a predetermined tension. The balloon reaches the balloon guide while being ballooned by the rotating disk of the spindle 8 which is provided and rotates at high speed. And
One twist starts from the tension device to the turntable, and another twist starts from the turntable to the balloon guide, and reaches the feed roller 10.

The output of the drive motor 5 is transmitted via a drum drive system B and a traverse drive system C, and rotates the feed roller 10 and the drum 9 so that the traverse device 1
Make 1 traverse. Thereby, the twisted yarn that has reached the feed roller 10 from the spindle device 2 is wound around the winding package P pressed against the drum 9 while being traversed by the traverse device 11.

For the winding of the twisted yarn, the traverse device 11 uses the traverse speed v and the disturb width h shown in FIG.
The yarn is wound around the package P at the twill angle θ shown in FIG. That is, the traverse condition of the traverse device 11 is performed by controlling the continuously variable transmission 14 based on information of the traverse angle θ and the traverse speed v by the proximity sensor 63 continuously fed back to the controller 6. Further, one cycle of the twill angle in FIG. 4 corresponds to one cycle of the disturb in FIG. 3, and disturbance is performed so that the twill angle swings with a width of 7%.

In this state, the pulleys 50 and 51 of the reversible motor 53 of the continuously variable transmission 14 are fixed, and as shown in FIG. The speed v is accelerated while maintaining a constant speed relationship with the drum 9. Then, at time t2, which is a constant speed, the reversible motor 5 of the continuously variable transmission 14
3 and the endless belt 52 of each pulley 50, 51.
By continuously changing the traverse speed v of the traverse device 11 within a certain range of high and low speeds, as shown in FIG. 3, the twisted yarn Y is wound while disturbing with a width h as shown in FIG. Wound on package P. in this way,
The time zone t2, t3, t4,... Where the traverse speed v of the traverse device 11 is accelerated stepwise, and is made constant after acceleration.
・ Disturb the yarn only. The disturbance is performed only in the constant speed time periods t2, t3, t4,... Other than the acceleration, because the continuously variable transmission 14 accelerates the traverse speed v in a step-by-step manner during the high and low speeds for the disturbance. This is because it is difficult to change the value. Thus, the fluctuating angle θ can be corrected to a set value in accordance with the winding amount of the twisted yarn wound on the winding package P, and the ribbon is wound on the winding package P by disturb. It can be prevented from occurring.

Next, when stopping the multiple twisting machine 1, the traverse speed v of the traverse device 11 is synchronized with the rotation of the drum 11. That is, the controller 6 controls the continuously variable transmission 14 in the same procedure as shown in FIG. 3 based on the actual rotation speed of the drum 9 fed back from the proximity sensor 62.
4 by rotating the reversible motor 53 forward and backward to increase or decrease the diameter of the endless belt 52 with respect to each of the pulleys 50 and 51, thereby reducing the traverse speed of the traverse device 11 while maintaining a constant speed relationship with the rotation of the drum 9. To synchronize. Thereby, the traverse device 11 and the drum 9 can be stopped at the same time, and it is possible to prevent the traverse drop and the rod winding when stopping.

[0024]

According to the multiple twisting machine of the present invention, the drum driving system of the drum for rotating the winding package and the traverse driving system of the traverse device for traversing the twisted yarn wound on the winding package are provided. If it is configured to be connected via a step transmission and driven by a common drive means, when each system is stopped, the traverse speed of the traverse device can be changed by the continuously variable transmission means so as to be synchronized with the rotation of the drum, The traverse device and the drum can be stopped at the same time, and it is possible to prevent traversing and sticking when stopping.

In addition, the traverse speed of the traverse device is stepwise accelerated by the continuously variable transmission means in accordance with the winding amount of the winding package, and the traverse speed is increased only in a time period constant after the acceleration. By continuously changing between high and low speeds, it is possible to correct the traverse angle that fluctuates depending on the winding amount of the twisted yarn by the winding package, and since the twisted yarn can be wound while disturbing, it is twisted. It is possible to prevent the occurrence of a ribbon in the winding package on which the yarn is wound, and to obtain a high-quality winding package.

Further, the stepless speed changing means comprises an endless belt, a pair of pulleys comprising two tapered bodies which can be freely moved toward and away from each other, and a contact / separation for forcibly moving each tapered body of one of the pulleys. When the distance between the tapered bodies of one pulley is forcibly adjusted by the contacting / separating means, the endless belt is varied to a diameter corresponding to the distance, and each tapered body of the other pulley is adjusted to follow the distance. Since the diameter of the endless belt is changed by changing the interval, the traverse speed of the traverse device can be appropriately changed by the change in the diameter of the endless belt. Further, since the tapered surfaces of the pulley can be brought into contact with the tapered surfaces on both sides of the endless belt, even if the tension of the endless belt is weak, the slip is small, the life of the endless belt is prolonged, and the power transmission accuracy is increased.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a multiple twisting machine.

FIG. 2 is an enlarged view showing a configuration of a continuously variable transmission used in a multiple twisting machine.

FIG. 3 is a graph showing a traversing operation of the traverse device of the multiple twisting machine.

FIG. 4 is a graph showing the relationship between traverse angle and time of a traverse device of a multiple twisting machine.

FIG. 5 is a schematic view showing a conventional multiple twisting machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Multiple twisting machine 2 Spindle device 3 Winding device 5 Driving motor (drive means) 9 Drum 11 Traverse device 14 Continuously variable transmission

Claims (3)

[Claims] 1. A spindle drive system of a spindle device for twisting a yarn, a drum drive system of a drum for rotating a winding package for winding the twisted yarn, and a twisted yarn wound on the winding package. A traverse drive system of a traverse device for traversing, and the drum drive system and the traverse drive system are connected via a continuously variable transmission unit that varies the traverse speed of the traverse device and performs disturbance, and is connected by a common drive unit. Driven multiple twisting machine. 2. The stepless speed change means gradually increases the traverse speed of the traverse device according to the winding amount of the winding package, and increases the traverse speed only during a time period in which the traverse speed is constant after the acceleration. 2. The multiple twisting machine according to claim 1, wherein the speed is continuously varied between low speeds. 3. The continuously variable transmission means includes a pair of pulleys connected to the drive means side and the traverse drive system, respectively, and an endless belt wound around each pulley. It has two tapered bodies that can be freely contacted and separated from each other and has a tapered surface that follows the tapered surface formed in the above. One pulley is provided with contact / separation means for forcibly contacting / separating each tapered body. The multiple twisting machine according to claim 1.