JPH0529697B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present application relates to a spinning manufacturing device (hereinafter referred to as a spinning machine), in which the rotation of back rollers and the rotation of front rollers are controlled by electrical control when twisting roving and spinning yarn. By controlling the feed rate of the coarse plate by increasing or decreasing it at a predetermined ratio and changing the thickness and number of twists of the spinning yarn, the number of yarn being spun can be freely changed without changing gears as in the past. . Moreover, this control operation is continuously repeated at a predetermined period to spin the structured yarn, and furthermore, during spinning, the rotation of the front roller is momentarily stopped and each of the normal spun yarn or the structured yarn to be spun is A total of four types of yarns are used to form slabs: ordinary yarns that can be freely changed in yarn count using a single spinning machine, three types of special yarns that are composed of structure yarns, slab yarns, and structure yarns with slabs. The aim is to spin the yarn.

In order to change the yarn count spun with a conventional spinning machine, it is well known that the rotation of the draft part is changed by replacing the gears arranged in the drive system from the main motor to the draft part and changing the gear ratio. Since this was done by increasing or decreasing the count, the spinning machine had to be stopped and workers had to do it manually to change the count. In addition, in order to spin special yarns such as structured yarn and slub yarn using conventional spinning machines, it is necessary to install a complicated control mechanism, and even with the installation of a complicated control mechanism, it is difficult to control the structure yarn that can be spun. The cycle of yarn count fluctuation (changes in the thinness and thickness of the yarn) or the cycle of spinning slabs can only be spun at a fixed period. It was impossible.

In view of the above, the present application attempts to freely spin the above four types of yarn by electrically controlling a spinning machine configured as detailed below. This will be explained in detail. FIG. 1 is a layout diagram showing the drive system 1 of the present application, and as is clear from the drawing, it is divided into two drive systems, drive system A and drive system B, by a first drive motor 2 and a second drive motor 3. , both drive motors 2 and 3 are adapted to rotate in synchronism by means of a starting switch (not shown). Drive system A is the first
The drive motor 2 passes through a transmission mechanism such as a transmission belt 4 and a drive shaft 5 to a spindle 6 and rotates it. A one-rotation detector 7 is provided. The next drive system B rotates the draft part 8 through a transmission mechanism such as gear transmission from the second drive motor 3.
The drive system B includes a first transmission mechanism 9 including a differential gear that controls the rotation of the draft part 8 as a whole, and a second transmission mechanism that controls the rotation of the cross roller 20 of the draft part 8. It is further divided into 10 as follows.

That is, it is attached to the first section 13 from the second drive motor 3 to the gear 12 that meshes with the input gear 11 of the first transmission mechanism 9, and then to the output gear 14 of the first transmission mechanism 9 and the main shaft 15 of the second transmission mechanism 10. A second section 17 consisting of two gears is disposed between the input gear 16 and a gear 19 that meshes with the output gear 18 of the second transmission mechanism 10. The second roller 21 is rotating synchronously).
2. Finally, there is a fourth section 25 extending from the gear 23 meshing with the output gear 14 of the first transmission mechanism 9 to the front roller 24.

A second rotation detector 26 is disposed on the input gear 16 of the second transmission mechanism 10, and indirectly detects the rotation speed of the second section 17 input to the second transmission mechanism 10, that is, the rotation speed of the front roller 24. Detected. Further, a first servo motor 27 and a second servo motor 28 are arranged in the first and second transmission mechanisms 9 and 10, respectively, arranged in the drive system B as described above, in the following manner. Ru. The first servo motor 27 has a gear 30 attached to the shaft end of a worm wheel 29 rotated by the first servo motor 27, and a chain between the gear 30 and an input gear 32 attached to the main shaft 31 of the first transmission mechanism 9. 33 is suspended so that the rotation of the first servo motor 27 is input to the first transmission mechanism 9. Next, the second servo motor 28
In this case, the gear 35 provided at the shaft end of the worm wheel 34 rotated by the second servo motor 28 is meshed with the input gear 52 of the second transmission mechanism 10, so that the rotation of the second servo motor 28 becomes the second The signal is inputted to a two-speed transmission mechanism 10. Finally, 37 is an electromagnetic clutch provided on the drive shaft 37 of the front roller 24 constituting the fourth section 25. By opening and closing this clutch, the front roller 24 rotates and stops rotating. The electromagnetic clutch 36, the above-mentioned first and second rotation detectors 7 and 26, and the first and second servo motors 2
7 and 28 are each connected to an electrical control means 38 such as a computer, and a program 39 as shown in FIG. 5 is input to the control means. FIG. 5 is a graphical representation of an example of a program, and this program 39 is a program that increases the standard thickness of yarn from the standard thickness of 0 to +5 and thins it to -5. A program for spinning a structured yarn 40 by continuously repeating the count change at a predetermined cycle, and a program for spinning a structured yarn 40 by continuously repeating the count change at a predetermined cycle.
There are four types of programs for the special yarn 39 to form the above-mentioned four types of yarns.

During normal operation, the first and second drive motors 2 and 3
The rotation is transmitted to the spindle 6 and draft part 8 through each drive system A, B, which rotates the spindle 6 and rotates the back, second, and front rollers 20, 21, and 24 at a predetermined rotation ratio. At this time, the first and second transmission mechanisms 9,
Each of 10 transmits the input rotation to other sections in the following manner. First, the first transmission mechanism 9 is
The rotation of the first section 13 input to the input gear 11 loosely fitted to the main shaft 31 rotates the inner gear 45 formed integrally with the input gear 11. The planetary gear 47 meshing with both sides of the wheel gear 46 is rotated by the inner gear 45 and rotates on the sun wheel gear 46 while performing planetary motion, and the planetary gear 47 receives rotational force due to this planetary motion. Rotating the output gear 50 connected to the pin 48 and loosely fitted to the main shaft 31,
The input rotation of the first section 13 is directly transmitted to the second section 17 and the fourth section 25 to rotate the front roller 24 at a predetermined rotation speed, and at this time, the main shaft 31 and of course the sunwheel gear 4
The input gear 32 at the end of the six-pronged shaft does not rotate. next,
The second transmission mechanism 10 is as follows. When the rotation of the second section 17 is input to the input gear 16 fixed to the main shaft 15, the main shaft 15 and the sun foil gear 51 fixed thereto rotate together, and due to this rotation, the sun foil gear 51 and the input gear 5
The planetary gear 54 meshes with the inner gear 53 carved on the inner peripheral surface of the
It rotates on the sun wheel gear 51 while performing a planetary motion, and the rotation due to this planetary motion is inputted from the second section by turning the output gear 18 that is loosely fitted to the main shaft 15 and connected to the planetary gear 54 and the pin 55. The rotation is transmitted straight to the third section 17, and the bag roller 20 and second roller 21 are rotated at a predetermined rotation ratio. At this time, input gear 5
2 is the worm wheel 3 of the second servo motor 28
Rotation is not performed due to the braking effect of 4.

In the apparatus of the present invention configured as described above, the spinning count change and the spinning of the special yarn 39 are performed as follows. First, the structure yarn 4 is
The spinning of 0 will be explained.

Now, the drive systems A and B rotate at a speed to spin yarn with a thickness of the reference value indicated by 0 above, and the first rotation detector 7 indirectly detects the rotation of the spindle 6.
Further, the second rotation detector 26 indirectly detects the rotation speed of the second section 17 input to the second transmission mechanism 10, that is, the rotation speed of the front roller 24, and sends a detection signal to the electric control device 38. ing. In this state, when the electric control device 38 reads a command to increase the spinning thickness to +5 as shown in the program 39, the following operation is performed. As is well known, when changing the spinning count to a thicker yarn, the rotational speed of the cross roller 20 is increased (naturally, the speed of the center roller 21 is also increased at the same rate) to increase the amount of roving supplied. This is done by increasing the rotation speed of the front roller 24 to increase the spinning length per unit time and reducing the number of twists per unit length. This is done by slowing down both rollers 20, 24. Therefore, when the electric control device 38 reads the command to make the spinning yarn thicker by +5 than the reference value as described above,
Based on the detected value sent from the first rotation detector 7, the deficit in the number of revolutions required to increase the speed of the front roller 24 to a predetermined number of revolutions is calculated, and a rotation command is given to the first servo motor to correct this deficit. The first servo motor 27 starts rotating, and this rotation
The signal is input to the input gear 11 of the transmission mechanism 9. This input rotates the main shaft 31 and the sunwheel gear 51 fixed thereto, and the sunwheel gear 51
rotation is added to the planetary gear 54 rotating at the reference rotation speed as described above, and the planetary gear 54 speeds up by the amount that the rotation speed of the first servo motor 27 is added to the reference rotation speed. The increased rotational speed is transmitted from the output gear 54 to the second section 17 and the fourth section 25, whereby the fourth section 2
The speed of the front roller 24 connected to No. 5 is increased to a desired rotation speed.

As the first transmission mechanism 9 performs the speed change operation as described above, the second section 17 and the third section 22 are outputted with increased rotation speeds as described above, and the back crawler 20 has an increased rotation speed than the reference speed. However, the second rotation detector 26 detects this increased rotation speed, and the electric control device 38 uses this detected value to determine the necessary speed when increasing the spinning speed to +5 even if the speed is increased as described above. The deficit in the number of rotations of the back crawler 20 is calculated and a rotation command is issued to the second servo motor 28, and the rotation of the second servo motor 28 is input to the second transmission mechanism 10 from the input gear 54. Second
The input gear 54 is rotated by the rotation of the servo motor 28.
When the gear is rotated, the inner gear 53 of the gear is engaged, and the planet is rotated by the sun wheel gear 51 at a rotation speed equal to the reference rotation speed plus the speed increased by the first transmission mechanism 9. Regia 54
is further increased in speed by the input amount from the second servo motor 28 to a rotational speed suitable for thickening the yarn by +5, and this rotational speed is output from the output gear 18 to the third section 22, and the back crawler 20 The second roller 21 is rotated at an increased speed at a predetermined speed, and naturally the second roller 21 is rotated at an increased speed at a constant rotation ratio with respect to the back roller. Through the above two operations, both the back and front rollers 20 and 24 rotate at an increased speed, increasing the amount of roving supplied to the back roller 20 and increasing the spinning speed to the standard value shown in the program. Spins a yarn that is +5 thicker than the original.

In this way, a thick spun yarn is spun by a predetermined length, and when the electric control device 38 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, the deceleration rotation speed is calculated from the rotation speed detected by the first rotation detector 7, and the first servo motor 2
A deceleration command is issued to the motor 7 to cause the motor to rotate at a deceleration rate, and this rotation is input to the first transmission mechanism 9 and the second transmission mechanism
The fourth section 17 is decelerated, the second rotation detector 26 detects the decelerated rotation of the second section, and the second servo motor 28 and the second transmission mechanism 10 are operated in the same manner as described above. By slowing down the speed, spinning out a -5 fine yarn, and repeating this operation continuously, a structured yarn 40 is spun as programmed into the electric control device 38.

Note that the program pattern for spinning the structure yarn 40 is not limited to the above,
Needless to say, any pattern of program can be set.

Next, the change in spinning count will be described as follows. When a command to make the yarn thicker or thinner than the standard value 0 is issued from the electric control device 38 to the spinning machine that is spinning the yarn at the standard value 0, the first rotation detector 7 detects the same as described above. Based on the detected value of increases or decreases the rotation speed to a predetermined number. On the other hand, the second rotation detector 26 detects the rotation speed of the second section 17 shifted as described above, and based on this detected value, the electric control device 38 calculates whether the rotation speed of the back crawler 20 is excessive or insufficient. Second
By operating the servo motor 28 and changing the rotational speed of the bag roller 20 to a predetermined rotational speed, the spinning count can be changed very easily.
Also, it goes without saying that the range of number change is not limited to the range shown in FIG.

Finally, the normal spinning performed as described above and the operation of synthesizing the slab 41 with each of the structure yarns 40 will be explained. slab 4
1 is spun using the front roller 24 as before.
This is done by momentarily stopping the rotation of the roving and retaining the sent roving on the front roller 24. In this application, as shown in FIG. 5, the program 3 input to the electric control device 38
A slab spinning command point 42 is shown at a predetermined location of 9, and when the electric control device 38 reads this,
By issuing a command to the electromagnetic clutch 37 provided in the fourth section 25 and momentarily opening it to stop the front roller 24 and retaining the sent roving, the spinning process is performed as described above. Slabs 41 are synthesized on each of the conventional spinning and structure yarns 40. It should be noted that the interval cycle for spinning the slab 41 is not limited to that of the program 39 shown in FIG. 5, and can be changed as necessary, as in the case of the structure yarn described above. be.

In carrying out the present application, the electric control device 38 may be any device, such as a microcomputer, as long as it can control the speed change mechanism as described above based on the detected value of the rotation detector and open and close the electromagnetic clutch in a predetermined manner. Also, the transmission mechanism is not limited to a differential gear as long as it can change the speed of the draft part as described above in response to commands from the electric control device. Furthermore, although the draft part shown in the drawing is a three-wire system, it goes without saying that there is no problem in applying the present application to a four-wire or five-wire system. Finally, the speed change of the spindle 6 will be described as follows. When making a large change in the spinning yarn count,
It is well known to adjust the rotational speed of the spindle 6 accordingly. The drawings illustrating the embodiments of the present application show conventional adjustment means using a cone drum 56. Instead, the first drive motor 2 is provided with a speed change function, and as the draft part 8 changes speed, the first drive motor 2
The rotation speed of the spindle may be adjusted by changing the speed of the spindle.

As described in detail above, the present application divides the drive system that controls the rotation of the spindle and draft part in the drive system of a spinning machine into two drive systems, and includes first and second rotation detectors in the divided drive system. There are first and second speed change mechanisms that operate based on the detected value of this rotation detector and change the speed along the rotational speed of the draft part, and an electromagnetic clutch that instantly stops the front roller. Not only is it possible to spin four types of yarn with one spinning machine, especially special yarns that combine structure yarns and slabs, which was considered impossible with conventional spinning machines, but also Since it is electrically controlled, the pattern of the special thread can be changed arbitrarily by changing the program, and since the structure is simple, maintenance is easy, making it an extremely useful invention.

[Brief explanation of the drawing]

The drawings show one example of the implementation of the present application, and Fig. 1 is an explanatory diagram of the layout of the drive system of the present invention, Figs. 2 and 3 are both cross-sectional views of the transmission mechanism, and Fig. 4 is a special construction in which a slab is combined with the structure yarn. An enlarged view of the thread and FIG. 5 are explanatory diagrams of the program. 1... Drive system, 2... First drive motor, 3...
...Second drive motor, 6...Spindle, 7...
First rotation detector, 8...Draft part, 9...
First transmission mechanism, 10... Second transmission mechanism, 20...
Cross crawler, 24...Front roller, 2
6... Second rotation detector, 27... First servo motor, 28... Second servo motor, 29... Electric control mechanism, A... Drive system, B... Drive system.

Claims (1)

[Scope of Claims] 1. In a spinning manufacturing device that twists roving sent out while drafting in a draft part and spins a spun yarn, the drive system that controls the rotation of the spindle and the draft part is connected to a first drive motor. The drive system A is divided into a drive system A that drives the spindle through an appropriate transmission mechanism such as a belt transmission, and a drive system B that drives the draft part from a second drive motor through an appropriate transmission mechanism such as a gear transmission. 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 bat crawler are disposed in the drive system A and B, respectively. A spinning manufacturing device that is equipped with a two-rotation detector and automatically controls the number of rotations output from the first and second transmission mechanisms using an electric command. 2. In a spinning manufacturing device that twists roving sent out while drafting in a draft part to spin yarn, the drive system that controls the rotation of the spindle and draft part is connected to an appropriate transmission system such as a belt transmission from a first drive motor. It is divided into a drive system A that drives the spindle using a mechanism, and a drive system B that drives the draft part from a second drive motor using an appropriate transmission mechanism such as gear transmission. A first transmission mechanism consisting of a differential gear etc. that controls the rotation and a second transmission mechanism that controls the rotation of the back crawler are provided, and first and second rotation detectors are installed in each of the drive systems A and B. Furthermore, an electromagnetic clutch was installed in the drive system of the front roller, and the rotational speed output from the first and second transmission mechanisms and the opening and closing of the electromagnetic clutch were automatically controlled by electric commands. Spinning manufacturing equipment.