JPS6128027A - Production device for spun yarn - Google Patents

Abstract

PURPOSE:To change both yarn number count of spun yarn and spinning pattern of structure yarn, by increasing and reducing speed of revolution of both a front and a back rollers depending upon detected values of revolution detectors of the front and the back rollers by electric control by variable speed mechanism. CONSTITUTION:The first revolution detector 33 is attached to the shaft of the gear 35, the second revolution detector 34 is engaged with the input gear 12 of the second variable speed machanism 5, and numbers of revolutions of the first drive system 10 and the second drive system 13 are detected by both the revolution detectors 33 and 34. The revolutions detectors 33 and 34 are and the servo motors 23 and 24 are connected to the electric control means 39, and a program of change in yarn number count and period of change in yarn number count of spun yarn is memorized in the control means 39.

Description

DETAILED DESCRIPTION OF THE INVENTION The present application relates to a spinning manufacturing device, and when spinning a yarn by heating one set of yarn, the rotation of the back roller and the front roller are increased/decreased at a predetermined ratio by electrical control. By controlling the feed amount of the yarn and changing the thickness and number of twists, it is possible to freely spin yarn of a desired count, and this control operation is continuously repeated at a predetermined period to create a straft. To spin a char yarn and freely change the spinning count without changing gears as in the conventional method, and also to spin special yarns such as straft yarn without installing a special control mechanism. It is something.

To change the number of yarn spun in a conventional spinning manufacturing device (hereinafter referred to as a spinning machine), as is well known, the gears installed in the drive system from the main motor to the draft part are replaced and the gear ratio is changed. As a result, the rotation of the draft part is increased or decreased, so in order to change the count, the spinning machine must be stopped and the worker must do it manually. In addition, in order to spin special yarns such as strafted yarns using conventional spinning machines, it is necessary to install a complicated control mechanism. The current situation is that it is only possible to produce changes with a fixed periodicity.

In view of the above, in this application, by controlling the spinning machine as detailed below, not only the normal spinning count change but also the cycle of count variation in the straft yarn is appropriately changed, and one spinning machine can control the spinning machine as detailed below. The present invention is intended to spin both ordinary yarn and special yarn, and the present invention will be explained in detail below with reference to drawings showing examples.

FIG. 1 is a layout diagram showing the drive system 1 of the present application. As is clear from the drawing, a first speed change mechanism consisting of a differential gear is included in the drive system 1 that connects the main motor 2 to the draft part 3 by gear transmission. 4 and a second "transmission mechanism 5" are arranged,
The drive system 1 is divided into the following four parts by the same speed mechanism 4.5.

A first drive system 10 starts from the main motor 2, rotates a spindle 6, passes through a driving shaft 7, and reaches a gear 9 that meshes with an input gear 8 of the first transmission mechanism 4. A second drive system 13 consisting of two gears disposed between the output gear 11 of the first transmission mechanism 4 and the input gear 12 of the second transmission mechanism 5; A third drive system 18 from the gear 15 meshing with the gear 14 to the second roller 17 via the back roller 16, and further from the gear 19 meshing with the output gear 11 of the first transmission 4 via the drive shaft 20 to the front roller 21. Fourth drive system 2 leading to
2, these four drive systems 10.13.18.22 are:
The rotation from the main motor 2 is transmitted to the draft part 3 through a large number of gears that make up each drive system, and the whole constitutes one large drive system 1. Under normal conditions, the rotation of the main motor 2 is kept at a predetermined ratio. It is the same as in the conventional method that the speed is reduced and the flow is transmitted to the draft part 3 to continuously spin yarn of a predetermined count.

The first and second
A first servo motor 523 and a second servo motor 24 are arranged in the following manner in each of the transmission mechanisms 4.5. First, the first servo motor 23 is the first servo motor 2
Gear 2 is attached to the shaft end of the worm wheel 25 which is rotated at
6 is attached, and the gear 26 and the main shaft 27 of the first transmission mechanism 4 are connected to each other.
Suspend the chain 29 between the input gears 28 attached to the
The rotation of the first servo motor 23 is arranged so as to be input to the first transmission mechanism 4. 'Next, the second servo motor 24 meshes the gear 31 provided at the shaft end of the worm wheel 30 rotated by the second servo motor 24 with the input gear 32 of the second transmission mechanism 5, and as above, the second The rotation of the servo motor 24 is input to the second transverse transmission 5.

Next, 33.34 is the first transmission mechanism 4 and the second transmission mechanism 5.
The first rotation detector 33 is directly attached to the shaft of the gear 35 constituting the first drive system 10. The second rotation detector 34 has a gear 37 attached to the output shaft 36 meshing with the input gear 12 of the second transmission mechanism 5. Second
A first drive system 10 input to the transmission mechanisms 4-, , J, , 5
and the rotational speed of the second drive system l-3'. 1st, 2nd
Rotation detector 33, 34 and first and second servo motors 23
．． Each of 24 is an electrical control means 39 such as a computer.
The control means 39 contains a program for changing the spinning count when spinning normal yarn, a cycle for changing the spinning count when spinning the straft yarn 51,
That is, a program 50 for manufacturing the special thread 49 is stored.

As described above, during normal operation, the rotation of the main motor 2 is transmitted to the draft part 3 via the drive system 1, and the back, second, and front rollers 16, 17, and 21 rotate at a predetermined rotation ratio. However, at this time, the first
Each of the second transmission mechanisms 4.5 transmits the input rotation to other drive systems in the following manner. First, the first transmission mechanism 4
In this case, the rotation of the first drive system 10 input to the input gear 8 loosely fitted to the main shaft 27 is intended to rotate the inner gear 40 formed integrally with the input gear 8. and a planetary gear 42 meshing with both the Q% sun wheel gear 41 fixed to the main shaft 27.
is rotated by the inner gear 40 and rotates on the sun wheel gear 41 while performing a planetary motion, and the rotational force due to this planetary motion is connected to the planetary gear 42 by a pin 43 and outputs the output gear 11 loosely fitted to the main shaft 27. rotate it,
The input rotation of the first drive system 1o is directly transmitted to the second drive system 13 and the fourth drive system 22 to rotate the front roller 21 at a predetermined rotation speed, and at this time, the main shaft 27 and of course the sun boil The gear 41 and the input gear 28 at the end of the shaft do not rotate.

Next, the second transmission mechanism 5 is as follows. When the rotation of the second drive system 13 is input to the input gear 12 fixed to the main shaft 44, both the main shaft 44 and the sunwheel gear 45 fixed thereto rotate, and due to this rotation, the sunwheel gear 45, A planetary gear 47 meshing with an inner gear 46 formed on the inner peripheral surface of the input gear 32 rotates on the sun wheel gear 45 while performing a planetary motion, and the rotation due to this planetary motion is caused by the rotation of the main shaft. 44 and connected to the planetary gear 47 and the pin 48, the rotation input from the second drive system 13 is transmitted straight to the third drive system 18, and the back roller 16 and the second roller are rotated. 17 is rotated at a predetermined rotation ratio. At this time, the input gear 32 does not rotate due to the braking effect of the worm wheel 30 of the second servo motor 24.

In the drive system in which the rotation of the main motor 2 is transmitted to the draft part 3 as described in detail above, the spinning count is changed and the stracture yarn 51 is spun as follows. FIG. 5 is a graphical representation of an example of a program 50 for changing the spinning count and spinning the special yarn 4 in the present application, and it is assumed that this program 50 is stored in the electric control device 39. Therefore, the program 5o shown in FIG.
A program 50 for changing the yarn count from thick to -5 to -5 is set, and by this, the yarn count can be changed freely within the range from +5 to -5.6 Furthermore, this program 5
For 0, increase the thickness of the spun yarn that has been spun at the reference thickness indicated by 0 to the thickness indicated by +5, and after spinning it for a predetermined length with this thickness, -5 from the reference thickness of 0. A program 50 is set in which the thread is spun to a predetermined length by making it thinner by +5, and then the thread is changed to +5 again, and this pattern is continuously repeated to spin the special yarn 49, that is, the stracture yarn 51.

In the apparatus of the present application configured as described above, the spinning count change and the spinning of the strafted yarn 51 are performed as follows. First, the spinning of the strafted yarn 51 will be explained.

The minute drive system 1 rotates at a speed to spin yarn with a thickness of the reference value indicated by 0 above, and the first and second rotation detectors 33
．． Each of the 34 is the 1st at this time. The first transmission input to the second transmission mechanism 4.5. The rotational speed of the second drive system 10.13 is detected and a detection signal is sent to the electric control device 39.

In this state, the electric control device 39 reads a command to increase the spinning thickness to +5 shown in the program 50 and performs the next operation. As is well known, when changing the spinning yarn count to a thicker yarn, the rotational speed of the back roller 16 is increased (naturally, the speed of the second roller 17 is also increased at the same rate) to increase the amount of braided yarn supplied, and This is done by increasing the rotation speed of the front roller 21 to increase the spinning length per unit time and reducing the number of twists per unit length. This is done by slowing down roller I6.21.

Therefore, when the electric control device 39 reads the command to make the spinning yarn thicker by +5 than the reference value as described above, the first rotation detector 3
The detection value sent from 3 and the shortfall in the number of rotations to increase the speed of the front roller 21 by a predetermined number of rotations are calculated, and a rotation command is issued to the first servo motor 23 to correct this shortfall. 23 starts rotating, and this rotation is input to the input gear 28 of the transmission mechanism 4. This input rotates the main shaft 27 and the sunwheel gear 41 fixed thereto, and the rotation of the sunwheel gear 41 is added to the planetary gear 42 which is rotating at the reference rotational speed as described above, and the planetary gear 42 is rotated. The speed is increased by the addition of the rotation speed of the first servo motor 23 to the reference rotation speed, and the increased rotation speed is transmitted from the output gear 11 to the second drive system 13, the fourth gear, and the drive system 22. As a result, the speed of the front roller 21 connected to the fourth drive system 22 is increased by a desired number of revolutions.

As the first transmission mechanism 4 performs the speed change operation as described above, the increased rotation speed is output to the second drive system 13 as described above, and this rotation speed is detected by the second rotation detector 34. Then, the electric control device 39 calculates the detection value and the shortfall in the number of revolutions of the bank roller 16 necessary to increase the spinning thickness to +5, issues a rotation command to the second servo motor 24, and controls the rotation of the second servo motor 24. The rotation is input to the second transmission mechanism 5 through the input gear 32. 2nd servo motor 2
When the input gear 32 is rotated by the rotation of 4, the input gear 32 meshes with the inner gear 46 of the gear, and rotates by the sun wheel gear 45 at a rotation speed equal to the reference rotation speed plus the speed increased by the first transmission mechanism 4. planetary gear 4
7 is further increased in speed by the amount of input from the second servo motor 24 to a rotational speed suitable for thickening the spinning yarn by +5, and this rotational speed is transferred from the output gear 14 to the third drive system 18.
The back roller 16 rotates at a predetermined increased speed, and naturally the second roller 17 rotates at an increased speed at a constant rotation ratio with the back roller 16.The above two operations cause the back roller 16 to rotate at a predetermined speed. Freon I-Both rollers 16.2
1 performs increased speed rotation, increases the amount of yarn supplied to the back roller 16, speeds up the amount of yarn to be spun, and spins yarn that is +5 thicker than the reference value shown in the program.

In this way, a thick spun yarn is spun by a predetermined length, and when the electric control device 39 reads from the program that this thick spun yarn is to be made thinner by -5 than the reference value, the yarn is spun by an action opposite to that for making the thick yarn thicker. Make it thinner. That is, a deceleration rotation speed is calculated from the rotation speed detected by the first rotation detector 23, a rotation command is issued to the first servo motor 23 to cause the motor to rotate at a deceleration rate, and this rotation is input to the first transmission mechanism 4. Second,
The fourth drive system 13.22 is decelerated, and the second rotation detector 34
detects the decelerated rotation of the second drive system 13, operates the second servo motor 24 and second transmission mechanism 5 in the same manner as above to decelerate the third drive system 18, and spins -5 thin yarn. By continuously repeating the unloading and unloading operations, the strafted yarn 51 is spun according to the program input to the electric control device 39. It goes without saying that the pattern of the program 50 for spinning the strutured yarn 51 is not limited to the above, and any program pattern can be set.

Next, the change in spinning count will be described as follows. When a command to make the spinning yarn thicker or thinner than the standard value O is issued from the electric control device 39 to the spinning machine that is spinning yarn with the thickness of the standard value O, the first rotation detector 23 is activated in the same manner as above.
calculates the excess or deficiency of the number of revolutions of the front roller 21 necessary to change the spinning count to the commanded thickness from the detected value, and issues a command to the first servo motor 23 to operate it; The first transmission mechanism 4 changes the rotation speed of the front roller 21 to a predetermined rotation speed.

On the other hand, the second rotation detector 34 detects the rotation speed of the second drive system 13 that has been changed in speed as described above, and based on this detected value, the electric control device 39 calculates whether the rotation speed of the back roller ]6 is excessive or insufficient. However, by operating the second servo motor 24 and changing the rotational speed of the back roller 16 to a predetermined rotational speed, the spinning count can be changed very easily. It goes without saying that the range of number change is not limited to the range shown in FIG.

In carrying out the present application, the electric control device may be any device, such as a microcomputer, as long as it can control the transmission mechanism as described above based on the detected value of the rotation detector, and furthermore, as shown in the drawings, Although the draft part is a three-line format, it goes without saying that there is no problem in applying the present application even if the draft part is a four-line five-line format.

As described in detail above, the present application includes a rotation detector that detects the rotational speed of the front roller and back roller in the drive system from the main motor to the draft bar;
A speed change mechanism is installed that increases or decreases the rotational speed of both rollers by electrical control based on the detected value of this rotation detector, and this speed change mechanism is controlled electrically, which was previously considered impossible. Not only can automatic count changes and special yarns such as strauted yarns be obtained extremely easily, but by changing the program, not only can the spinning counts be changed, but also the spinning pattern of structured yarns can be arbitrarily changed. This is an extremely useful invention.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, in which Fig. 1 is an explanatory diagram of the arrangement of the drive system of the present application, Fig. 2 is a sectional view of the first transmission mechanism, and Fig. 3 is a cross-sectional view of the second transmission mechanism.
FIG. 4 is an enlarged view of the special yarn spun in the present invention, and FIG. 5 is an explanatory diagram of the program input to the electric control device. 1... Drive system, 3... Draft part, 4
...first transmission mechanism, 5...second transmission mechanism,
lO...first drive system, 13...second drive system,
16... Back roller, 18... Third drive system, 22... Fourth drive system, 23... First servo motor, 24... Second servo motor, 33...
・First rotation detector, 34...Second rotation detector, 3
9...Electric control device. 49...Special yarn, 51...Struffure yarn.

Claims (1)

[Claims] 1. In the drive system from the main motor to the draft part by gear transmission, etc., there is a first transmission mechanism consisting of a differential gear etc. that controls the rotation of the entire draft part, and a second transmission mechanism that controls the rotation of the back roller. and the above first
, disposing first and second servo motors in each of the second transmission mechanisms to change the gear ratio of the transmission mechanisms, and detecting the rotational speed of the drive system input to each of the first and second transmission mechanisms. A spinning manufacturing apparatus is provided with first and second detectors, and the rotation of the first and second servo motors is automatically controlled by electric commands.