JPS6134235A - Production unit for spun yarn - Google Patents

Abstract

PURPOSE:To change easily yarn number count and to obtain yarn, slub yarn, etc. varying periodically, by driving back rollers and a front roller of a spinning machine by separated motors, controlling revolutions independently. CONSTITUTION:In a spinning machine (especially fine spinning frame), the spindle 2 is connected to the shaft 12 rotated and driven by the motor 4, and connected via the change gear 11 to either the front roller 5 or the back rollers 8 and 9 (the figure shows, to the front roller 5). The other roller (the figure shows, to the back rollers 8 and 9) is driven by another motor 7, which is rotated and controlled independent of the motor 4. Changing speed of the change speed gear 11 is carried out by the servomotor 20.

Description

[Detailed description of the invention] The main application is spinning manufacturing equipment! (hereinafter referred to as spinning machines).

When heating the braided yarn to spin yarn, the rotation of the back roller and the front roller are automatically increased or decreased by electric commands to control the feed rate of the braided yarn, thereby controlling the thickness of the yarn and the number of twists. In addition to freely changing the number of spun yarn by changing the yarn count, the above control operation is continuously repeated at a predetermined period to spin a stracture yarn, and the front roller is A method in which the rotation of the front roller is stopped momentarily to combine the slub with the straft yarn, or a method in which only the stopping operation of the front roller is repeated at a predetermined period to spin the slub yarn, and the present application is based on a single spinning machine. It is characterized by spinning a total of four types of yarns, including ordinary spinning yarns that can be freely changed in yarn count, as well as three types of special yarns, including strafture yarns, slub-combined yarns, and slub yarns. That is.

As is well known in conventional spinning machines, a long drive system consisting of gears, belts, etc. is purchased from a single main motor, and the spindle and draft part are rotated by this drive system, which makes it difficult to change the spinning count. In order to do this, the spinning machine must be stopped and the worker must change the gears to change the gear ratio, which not only results in a loss of time but also requires a lot of manpower. Furthermore, in the past, strafture yarns and slub yarns have been produced and sold as special yarns. However, the conventional production of special yarns has become extremely complicated because the control mechanism for special yarn spinning is incorporated into the above-mentioned complex drive system, and one of the purposes of this application is to form a slab on the straft yarn and synthesize the two. However, conventional special yarns are spun by mechanically controlling spinning machines.

It is only possible to spin a yarn with a fixed period in which the period of count variation (change in thickness of the yarn) of the straft yarn and the period of slab formation in the slub yarn are determined. By electrically controlling the spinning machine, it is possible not only to form a slab at any location on the strafture yarn, but also to change the period of first-number variation as appropriate. The present application will be described in detail below with reference to drawings showing examples.

The drawings show the embodiment of the present application, and both Fig. 1 and Fig. 2 are layout diagrams of the drive system 1 that controls the rotation of the spindle 2 and the draft part 3. There are nine main types of drive systems, and it goes without saying that the two drive motors rotate in synchronism with a start switch (not shown) to rotate the two drive systems. First, let's talk about drive system 1 shown in Figure 1. explain.

The drive system 1 shown in FIG. 1 includes a first drive system 6 that runs from a first drive motor 4 through a spindle 2 to the front roller 5 of the draft part 3, and a second drive motor 7 that runs the back roller 8 of the draft part 3. (as is clear from the drawing, the middle roller 9 rotates synchronously).
The drive motor 7 is a motor having a variable speed function, such as a servo motor, whose rotational speed can be appropriately changed in response to an electric command, which will be described later.

The above ff11g dynamic system 6 has a transmission i consisting of a differential gear.
ti is arranged, and the first drive system 6 is connected to the transmission mechanism 11.
consists of the following two drive systems. That is, a constant speed drive system 15 from the first drive motor 4 through the driving shaft 12 of the spindle 2 to a gear 14 that meshes with the input gear 13 of the transmission Ia4L1t, and a gear 17 that meshes with the output gear 16 of the transmission a4Wt1. , a variable speed drive system 19 that extends through a drive shaft 18 to the front roller 5.

The transmission mechanism 11 disposed in the first drive system 6 described above includes
Servo motor 20 that increases or decreases the gear ratio of the transmission mechanism 11
is installed as follows. Servo motor 2
A gear 2 is attached to the shaft end of the worm wheel 21 which is rotated at 0.
A chain 25 is suspended between the gear 22 and the input gear 24 to which the main shaft 23 of the transmission mechanism 11 is attached, and the rotation of the servo motor 20 is input to the transmission mechanism 11. .27 are first and second rotation detectors disposed in each of the constant speed drive system 15 and the variable speed drive system 19;
The first rotation detector 26 indirectly detects the rotation speed of the constant speed drive system 15 input to the transmission mechanism 11, that is, the rotation speed of the spindle 2, and the second r? The rotation detector 27 directly detects the rotation speed of the front roller 5. Furthermore, the second rotation detector 2
Similarly to the first detector 26, the detector 7 may be disposed at an appropriate location other than the one shown in the drawings to indirectly detect the rotation of the front roller 5.

After Q, 28 is an electromagnetic clutch provided on the drive shaft 18 of the front roller 5 constituting the variable speed drive system 19. By opening and closing this clutch 28, the front roller 5 rotates or stops rotating. Therefore, the electromagnetic clutch 2
8. The first and second rotation detectors 26, 27 and the second
The rm motor 7 and the servo motor 20 are each connected to an electric control device 29 such as a computer, and this control means 29 stores a program 30 for spinning the four types of yarn described above.

During normal operation in which yarn of a predetermined count is continuously spun, each of the first drive motor 4 and the second drive motor 7 rotates at a predetermined rotation ratio. It is transmitted to the front roller 5 and the pack roller 8 via the second drive system 6.7, and each roller 5.8 rotates at a predetermined rotation ratio to perform spinning, as in the conventional case. At this time, the 1st H
The transmission jiIJ11 disposed in the A dynamic system 6 operates as follows to transmit the rotation input from the constant speed drive system 15 to the variable speed drive system 19. The rotation of the constant speed drive system 15 input to the input gear 13 loosely fitted to the main shaft 23 of the transmission G11l rotates the inner gear 31 formed integrally with the input gear 13, so that the inner gear 31 and The planetary gear 33 meshing with both sides of the sunwheel gear 32 fixed to the main shaft 23 is rotated by the inner gear 31 and rotates on the sunwheel gear 32 while performing an idle motion, and the rotational force due to this planetary motion rotates the output gear 16 connected to the planetary gear 33 with a pin 34 and loosely fitted to the main shaft 23, and directly transmits the input rotation of the constant speed drive system 15 to the variable speed drive system 19 without increasing or decreasing. The front roller 5 is rotated at a predetermined rotational speed, and at this time, the main shaft 23 of the transmission mechanism 11, naturally the sun wheel gear key 32, and the input gear 24 at the end of the shaft do not rotate.

In the above explanation, only the speed change of the front roller 5 and the back roller 8 is mentioned, and the speed change of the rotation speed of the spindle 2 is not explained. The rotational speed is adjusted only when the number of rotations is changed, but since the adjustment is performed using the cone drum 35 or the like as in the conventional case, the details will be omitted.

In a spinning machine having the drive system 1 as described in detail above, the drive system 1 is electrically controlled as detailed below to change the count of normal spinning and spin the three types of special yarns 36 described above. However, this will be explained in order below. Assume now that a program having a pattern as shown in FIG. 5 is stored in the electric control device 129. That is, the program 30 shown in FIG. 5 is a program for changing the yarn count (thickness count) of yarn spun with a standard thickness indicated by 0 to +5 or -5; SaO
After increasing the thickness of the spun yarn to +5 and spinning it to a predetermined length, make it thinner by −5 than the standard thickness, and after spinning the yarn to a predetermined length, the thickness is increased to +5 again. By continuously repeating this, a program is created to spin the straft yarn 37, and a command is also given to each of the normal spinning yarn and the straft yarn 37 spun as described above to form slabs 38 at predetermined intervals. This is a program that has a command point 39 to issue, and uses the program 30 such as 29 as appropriate to spin the threads of the above-mentioned Tori@i type. The spinning of the fried yarn 37 will be explained. Now, the drive system 1 rotates at a speed to spin yarn with a thickness of the reference value indicated by 0, and the first
The rotation detector 26 detects the rotation speed of the constant speed drive system 15, that is, the spindle 2, and the second rotation detector 27 detects the rotation speed of the front roller 5.
detects the rotational speed of the
! It is sent to 29. In this state, the electric control device issues a command to increase the spinning thickness to +5 as shown in program 30!
29 performs the following control operation. When changing the spinning count to thicker as in R, the rotation speed of the back roller 8 is increased (of course, the second roller 9, which rotates synchronously, is also rotated at the same rate). At the same time, the rotation speed of the front roller 5 is also increased at a constant rate to increase the spinning length per unit time and reduce the number of twists per unit length. To make it thinner, it is done by decelerating both the back and front rollers 8.5, contrary to the above. Hence the electric control device! 29 reads the command to make the spinning yarn thicker by +5 than the standard value as described above, and from the detected value sent from the first rotation detector 26, it determines the insufficient number of rotations to increase the speed of the front roller 5 to reach the predetermined rotation speed. is calculated, a rotation command is issued to the servo motor 20 to correct this loss, the servo motor 20 starts rotating, and this rotation is the speed change fi.
It is input to the input gear 24 of 4'W11. This input causes the main shaft 23 and the sun wheel gear 32 fixed thereto to
is rotated, and the rotation of the sunwheel gear 32 is added to the planetary gear 33 rotating at the reference rotation speed as described above, and the planetary gear 33 is rotated by the rotation speed of the servo motor 20 added to the reference rotation speed. The increased rotational speed is transmitted from the output gear 16 to the variable speed drive system 19, thereby causing the front roller 5 to rotate at the desired slightly increased speed. When the rotation speed of the roller 5 is increased, the second rotation detector 27 detects the increased rotation speed of the front roller 5 and sends the signal i1 to the electric control device il!29.

As a result, the electric control device 29 controls the front roller 5
The shortfall in the number of rotations of the back roller 8 required to increase the thickness of the spinning yarn to +5 with respect to the number of rotations of the front roller 5 is calculated, and the second drive motor 7 is caused to rotate at a slow speed back at a predetermined ratio to the number of rotations of the front roller 5. A speed increase command is issued to increase the speed of the roller 8, and the second drive motor 7 rotates at an increased speed to increase the speed of the back roller 8 to a predetermined rotational speed, increasing the amount of roving supplied by 1 or more, and spinning. The spinning length is increased, and a yarn that is thicker by +5 than the reference value 0 shown in the program 30 is spun.

The control operation is carried out as shown in the figure, and a thicker yarn is spun by a predetermined length, and the electric control device 29 makes the thicker yarn less than the reference value.
If you read the command to thin it by 5 from the program 30,
The spinning is made thinner by the opposite effect to the above case. That is, from the detection value detected by the first rotation detector 26, a deceleration rotation speed is calculated to decelerate the front roller 5 to a predetermined rotation speed, and a deceleration command is issued to the servo motor 20 to cause the deceleration rotation, thereby causing the deceleration rotation. The second rotation detector 27 detects the rotation of the front roller 5 and transmits it to the electric control device 29. 29 calculates the deceleration rotation speed of the back roller 8 and issues a deceleration command to the second drive motor 7, so that the back roller rotates and a thin yarn corresponding to -5 is spun. In this way, by continuously repeating the increase/decrease operation of the rotational speed of the draft part 3 according to the electric command, the strafted yarn 37 is spun according to the program input to the electric control device 1129.

In the first embodiment, the second rotation detector 27 is
The second rotation detector 2 is installed in the variable speed drive system 19 of the first drive system 6 and detects the rotation speed of the front derailleur 5.
7 is disposed in the second drive system 10 to detect the rotation of the back roller 8, and even if the drive system 1 is controlled in the following manner, the spinning of the strufture yarn 37 is performed. In this case, when a command to increase the thickness of the spinning yarn is issued, the shortfall in the number of rotations of the back roller 8 is calculated based on the signal sent from the second rotation detector 27, and a command is issued to the second drive motor 7. The speed of the back roller 8 is increased.
The second rotation detector 27 detects the rotation of the electric control device 2.
9, and calculates the shortfall in the number of rotations of the front roller 5 based on this detection signal and the signal of the first rotation detector 26, and issues an instruction to the servo motor 20 to slow down the front roller 5 and make it thinner. The draft part 3 is decelerated by performing the operation opposite to the above, and by continuously performing this operation, it is possible to spin out the same strafted yarn 37 as described above.

Next, two jets of the special yarn 36 in which the slab 38 is synthesized with the straft yarn 37 spun as described above will be explained. Spinning of the slab 38 is conventionally carried out by momentarily stopping the rotation of the front roller 5 and allowing the sent roving to stay on the front roller 5, but in this application, as shown in FIG. A slab spinning command point 39 is input to a predetermined part of the program 30 input to the electric control device 29, and when the electric control device 29 reads this, the variable speed drive system 19 of the first drive system 6 is activated. A command is issued to the disposed electromagnetic clutch 28 to momentarily open it, and the front roller 5 is stopped to retain the fed braided yarn, and the strafted yarn 37 is spun as described above. Slab 38 is synthesized. Needless to say, by simply opening and closing the electromagnetic clutch 28 without performing the control operations necessary for spinning the three strands of straft yarn described above, a slab yarn in which only the slab 38 is spun can be obtained in normal spinning.

Finally, 1. As is clear from the above explanation, when changing the count in normal spinning, the control operations necessary for spinning straft yarn and slab yarn are performed, and the constant speed and draft part commanded by the program 30 are performed. By speeding up or decelerating 3, the number can be freely changed within the range of +5 to -5.

When carrying out the present application, the electrical control device may include, for example,
Any device, such as a microcomputer, may be used as long as it can control the drive system as described above based on the detected value of the rotation detector, and the speed change mechanism may be any device that can freely change the speed ratio based on electrical commands. Furthermore, although the draft part shown in the drawing is a three-wire system, it goes without saying that there is no problem with the application of the present application even if the draft part is a four-wire, five-wire system. As is clear from the above, an electromagnetic clutch is not required when only spinning a strafted yarn or when only changing the yarn count in normal spinning.

Next, a second embodiment shown in FIG. 2 will be described. In the embodiment shown in FIG. 2, the drive system l of the spinning machine is connected to a first rgA motor 06 that runs from the first drive motor 4 through the spindle 2 to the back roller 8 by gear transmission, and from the second drive motor 107. It is divided into a second drive system 110 that reaches the front roller 5 by gear transmission, etc., and the first drive system I as described above.
○ A transmission mechanism 11 consisting of a differential gear is disposed in 6 to constitute a constant speed drive system 115 and a variable speed drive system 119, and the transmission mechanism 1
Similarly, a servo monitor 20 is disposed at 1.

Further, the constant speed drive system 115 and the second drive system 110 include first and second
In addition to providing rotation detectors 26 and 27, the second drive system 1
10, an electromagnetic clutch 28 is attached to the Q moving shaft 18.

When the electric control device 29 reads the input program 30 as described above, it calculates whether the number of rotations of the back roller 8 is excessive or insufficient from the detected value of the first rotation detector 26,
Issue a command to the servo motor 20 to speed up or slow down the rotation to control the back roller 8 to a predetermined rotation speed,
Further, the detected value of the second rotation detector 27 is used to calculate whether the number of rotations of the front roller 5 is excessive or insufficient, and a command is issued to the second drive motor 107 to change the speed of the second drive motor 107 to control the number of rotations of the front roller 5 to a predetermined number of rotations. do. By continuously repeating this operation, the straft yarn is spun as in the first embodiment, and the slab is spun by opening and closing the electromagnetic clutch. Also, as in the first embodiment, four types of spinning can be performed freely.

The present invention provides four types of spinning machines in one spinning machine by controlling the drive system as detailed above.

In particular, it is not only possible to spin special yarns by combining slabs with structure yarn, which was considered impossible with conventional spinning machines, but also because it is electrically controlled, the pattern of special yarns can be freely changed by changing the program. It is an extremely useful invention, as it can be changed to another type, and the configuration is simple, making maintenance management easy.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present application. Figures 1 and 2 are both explanatory drawings of the arrangement of the drive system of the present invention, Figure 3 is a cross-sectional view of the transmission mechanism, and Figure 4 is a composite of slabs with strufture yarn. The enlarged view of the special thread shown in FIG. 5 is an explanatory diagram of the input program. l... Drive system, 3... Draft part, 4.
...First drive motor, 5...Front roller, 6゜106...First drive system, 7,107...
・Second drive motor, 8...back roller,
10.110...Second drive system, 11...Transmission mechanism, 20...Servo motor, 26...
・First rotation detector, 27... second rotation detector,
28... Electromagnetic clutch, 29... Electric control device

Claims (1)

[Claims] 1. In the drive system of the spinning production device, the drive system that controls the rotation of the spindle, the front roller, and the back roller is: (A1) The drive system that rotates the spindle and the front roller by a first drive motor; A2) A drive system that rotates the back roller by a second drive motor. Or, it is divided into two drive systems: (B1) a drive system in which the first drive motor rotates the spindle and the back roller; (B2) a drive system in which the second drive motor rotates the front roller; A1 in the system,
The drive system shown in A2 includes (1) a transmission mechanism consisting of a differential gear etc. that controls the rotation of the front roller, (2) a servo motor that increases or decreases the gear ratio of the transmission mechanism, (3) the rotation speed of the spindle. (4) A second rotation detector that detects the number of rotations of the front roller or back roller; A transmission mechanism consisting of a differential gear etc. that controls the rotation (2) A servo motor that increases or decreases the gear ratio of the transmission mechanism, (3) A first rotation detector that detects the rotation speed of the spindle, (4) Front roller or back roller. A spinning manufacturing device, which is equipped with a second rotation detector for detecting the number of rotations of a roller, and automatically controls the rotation of a second drive motor and a servo motor by electric commands. 2. In the drive system of the spinning production device, the drive system that controls the rotation of the spindle, front roller, and back roller is as follows: (A1) A drive system that rotates the spindle and front roller by a first drive motor, (A2) A second drive motor (B1) A drive system that rotates the spindle and the back roller using a first drive motor; (B2) A drive system that rotates the front roller using a second drive motor. The system is divided into two drive systems, A1,
The drive system shown in A2 includes (1) a transmission mechanism consisting of a differential gear etc. that controls the rotation of the front roller, (2) a servo motor that increases or decreases the gear ratio of the transmission mechanism, (3) the rotation speed of the spindle. (4) A second rotation detector that detects the number of rotations of the front roller or back roller; (5) An electromagnetic clutch that turns on and off the rotation of the front roller; or B1, B2 The drive system shown in (1) a transmission mechanism consisting of a differential gear etc. that controls the rotation of the back roller, (2) a servo motor that increases or decreases the gear ratio of the transmission mechanism, (3) the rotation speed of the spindle. (4) a second rotation detector that detects the rotation speed of the front roller or back roller; (5) an electromagnetic clutch that turns on and off the rotation of the front roller; A spinning manufacturing device in which the rotation of a second drive motor, a servo motor, and the opening and closing of an electromagnetic clutch are automatically controlled by electric commands.