JPH0663148B2 - Special yarn manufacturing equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spinning machine in which a traveler circulates around a spindle and ascends and descends to form a tube yarn, and the number (thickness) of spun yarn continuously changes. The present invention relates to an apparatus for producing a special yarn (generally referred to as a slab yarn, a structure yarn, or a slab-containing structure yarn).

2. Description of the Related Art A conventional device for changing the yarn count of a spun yarn within a predetermined range during spinning in this way is a traveler for a predetermined count (for example, 10's to 40's) approximately in the middle of the predetermined range. When changing the number in the range of, the traveler's for 20's) is used and the number of revolutions of the whole range is spun out by keeping the number of revolutions of the traveler constant. By the way, the spindle rotation speed (traveler rotation speed) when spinning another count (for example, 10's, 40's) with this predetermined count traveler (hereinafter referred to as the used traveler, here for 20's) ).
In general, when only 20's are spun out by a 20's traveler, the spindle speed is set to the optimum high value R20 (see Fig. 8) so that the production amount can be high. If a fine count (for example, 10's) is spun at 20's, the spinning tension applied to the yarn will be excessive and thread breakage will occur more easily. If a thick count (for example, 40's) is spun, ballooning becomes excessive and yarn breakage or yarn quality is adversely affected. Therefore, when spinning the other number with the traveler for the predetermined number (20's), the relationship between the spindle rotational speed and the spinning number can be experimentally determined in order to prevent these problems. As shown in FIG. 8 (a), in the above-mentioned special yarn manufacturing apparatus, the spindle speed is R40, that is, 4
It is a rotation speed for spinning 0's, and the peripheral speeds of the front roller and the back roller are changed with respect to this constant spindle rotation speed to obtain a change in count and a twist number corresponding thereto.

Problems to be Solved by the Invention According to the above-mentioned prior art, for 40's having the worst condition (that is, the lowest) with respect to the spinning number by the used traveler, the spindle rotational speed is changed with respect to the change in the number of the predetermined range. It is set to a constant rotation, and even if it is changed from 40's to another count during spinning, it is still rotating at 40's spindle speed,
The production amount of yarn decreased, and the operation was inefficient.

The present invention realizes an efficient operating state in a special yarn manufacturing apparatus in which the yarn count is changed during spinning, improves the production amount of spun yarn as compared with the conventional one, and provides a device having no trouble such as yarn breakage. With the goal.

Means for Solving the Problems The present invention, as shown in FIG. 1, includes a first variable speed motor capable of changing a spindle rotation speed and a second variable speed motor capable of changing a front roller peripheral speed with respect to the spindle rotation speed. A motor, a third variable speed motor capable of changing the back roller peripheral speed with respect to the front roller peripheral speed, a yarn pattern setting means, and a rotation speed pattern setting means for setting a pattern for spindle count change depending on a traveler used, Storage means for storing control data representing a pattern, a length measuring device for measuring a spinning length, and a spindle rotation speed and a twisting number based on the control data of the storage device in relation to a signal from the length measuring device. The first and second motor control means for controlling the first and second variable speed motors so that the spinning yarn is adapted to the yarn number, and the yarn number of the spun yarn corresponds to the set pattern. And a third motor control means for controlling the third variable speed motor so as to respond.

Operation According to the above configuration, the yarn count pattern of the spun yarn is set by the yarn pattern setting means, the spindle rotation pattern is set by the rotation number pattern setting means, and the control data representing these patterns is stored in the storage means. Then, the control data is read in relation to the signal relating to the spinning length from the length measuring device, and the signals are output from the first and second motor control means based on this data, and the first and second variable speed motors are output. Is controlled to adjust the spindle rotational speed and the twisting number to the yarn count, and at the same time, a signal is output from the third motor control means to control the third variable speed motor so that the yarn count corresponds to the yarn pattern.

Example Hereinafter, an example will be described. In this example, a case of spinning a special yarn having a number change from 10 to 40 using a traveler for 20 count will be described.

FIG. 2 shows a drive device 3 for a spindle 1 and a draft section 2 in a spinning machine, in which a traveler 9 goes up and down while orbiting around the spindle 1 to form a yarn. The drive device 3 includes a drive system A including a first variable speed motor 4 and a second drive system A.
It is divided into a drive system B including third variable speed motors 5 and 6. The spindle 1 is rotated from the first variable speed motor 4 via the transmission belt 7, the drive shaft 8, etc.
The rotation of the spindle 1 is changed by changing the rotation of the spindle.

The drive system B is a speed change mechanism 11 that controls the rotation of the back roller 10.
Allows the input gear of the speed change mechanism 11 from the second variable speed motor 5 to
From the section 15 reaching the front roller 14 as well as the gear 16 meshing with the output gear 12 of the speed change mechanism 11 to the back roller 14
It is divided into 10 and a section 18 extending to the second roller 17.

The speed change mechanism 11 is composed of a differential gear 19 whose speed is controlled by the third variable speed motor 6. This differential gear 19
As shown in FIG. 3, when the input gear 13 is rotated while the inner gear 20 is stopped, the main shaft 21 and the sun wheel gear 22 are integrally rotated to rotate the planetary gear 23, and this rotation causes the inner gear to rotate. The planetary gear 23 planetarily moves the inner periphery of 20 to rotate the output gear 12 in the same direction as the input gear 13 at a predetermined speed, and the inner gear 20 rotates the input gear 13 while the input gear 13 is rotating. When rotated in the same direction or in the opposite direction, the rotation speed of the output gear 12 is increased or decreased, respectively. A gear 24 is formed on the outer periphery of the inner gear 20, and the gear 24 meshes with a gear 26 fixed to the shaft end of a worm wheel 25 driven by the third variable speed motor 6, and the third variable speed motor 6
The number of revolutions of the output gear 12 of the differential gear 19 can be changed by the forward and reverse rotation of. The input gear 13 has a front roller 14
The pulsar 27, which emits a measuring pulse as a measuring signal corresponding to the spinning length of the spun yarn by measuring the number of revolutions of the pulsar 27, is engaged, and the measuring pulse transmitted from the pulsar 27 is generated by the front roller 14 Is sent every time the spun yarn is sent by a reference unit length (for example, 1 cm) in the pattern setting described later. Further, 28 is an electronic clutch interposed in the drive section of the front roller 14 in the section 15, and this electromagnetic clutch 28 is for forming a slab on the spun yarn, and is temporarily released to the front. Stop the rotation of the roller 14,
Alternatively, a slab is formed on the spun yarn by decelerating. The electromagnetic clutch 28 may be omitted if it is not necessary to form a slab.

Next, an electric control device 30 for controlling the operations of the first to third variable speed motors 4, 5, 6 and the electromagnetic clutch 28 to manufacture the special yarn 29 as shown in FIG. 4 will be described.
This electric control device 30 is for setting the pattern of the special yarn 29 to be manufactured as shown in FIG. 7 and the spindle rotation speed pattern (FIG. 8 (a)) suitable for the number of travelers to be used. A first computer device (31) and control data representing a pattern set by the first computer device (31) are stored, and during spinning, the first to third variable speed motors (4-6) and the electromagnetic clutch are controlled by the control data of the stored pattern. And a second computer device 32 for controlling the operation of 28. The first computer device 31 is composed of a hand-held computer device such as a commercially available pocket computer to reduce the manufacturing cost. The first computer device 31 also serves as a plurality of first computer devices.
The control data of the setting pattern can be directly input to the second computer device 32 by carrying each of them to the vicinity of the second computer device 32 of each machine. The first computer device 31 is a desktop microcomputer,
A cassette tape may be used to transfer the control data. The first computer device 31 is a special yarn to be manufactured.
A yarn pattern setting means for setting a count change pattern and a slab formation pattern related to the length of 29, and a spindle rotation speed change pattern (that is, a traveler rotation speed pattern) corresponding to the count change, which is suitable for the traveler used. A microcomputer 3 comprising a central processing unit 33 and a storage unit 34, which constitutes a rotation speed pattern setting means.
5, an input device 36 such as a keyboard, an output device 37 and a tape recorder 38. The program of the flowchart shown in FIG. 6 is written in the ROM (read-only memory) of the storage device 34. The pattern of the special yarn 29 and the spindle rotation speed pattern based on this program are set as follows. First, as shown in FIG. 7, a graph was prepared in which the vertical axis represents the ratio A (percentage) of the number change to the standard number and the horizontal axis represents the spinning length L (centimeter), and the graph was prepared on this graph. The pattern of the special thread 29 for which is desired is expressed by the polygonal line 39. In this case, the rate of change in the number is 0, the thicker than this is a positive value, the smaller is a negative value, and the reference unit length La of the spinning length L is 1 cm, for example, and the pattern The maximum length of the set length Ln is 70m. Next, above line 3
Spinning length value L at each inflection point P0, P1, P2, ... Pn of 9
0, L1, L2, ... Ln and the rate change ratios A0, A1, A2 ,. In addition, the points indicating the slab formation points on the polygonal line 39.
Fill in SP1, SP2, ... SPn and these points SP1, SP2, ... SPn
The values SL1, SL2, ... SLn and the slab length (the length of time for stopping the rotation of the front roller 7) S1, S2,
… Ask for Sn. After that, the program shown in FIG. 6 of the microcomputer 35 is started. By the start of this program, the first step is "thread data"
Select whether or not to input, and if so, select "key input" or read from tape in step,
In the case of "key input", the ratio A0 (zero in FIG. 7) of the number change with respect to the reference number at the start is input from the input device 36 in step. Thus, when A0 is input, the spinning length L0 is set to zero. When this initial input is performed, the process proceeds to the next step of "count data Ln, An input", in which the spinning length L1 and the rate of count change at the first inflection point P1 of the pattern on the graph above. Enter A1. When the L1 and A1 are input, the process proceeds to the next "end judgment" step, and if there is no end signal input at this step, the process returns to the "Ln, An input" step again, this time the second refraction Enter the spinning length L2 at the point P2 and the ratio A2 of the number change. By repeating the above, all inflection points
Spinning length L1 to Ln in P1 to Pn and ratio of count change A1 to An
When the input of is completed, an end signal is input in the step of "end discrimination". This end signal advances to the next step of "slab data SLn, Sn input", and in this step, the spinning length SL1 and the slab length S1 at the first slab formation point SP1 of the pattern on the above graph are input. . When this SL1 and S1 are input, the next "end judgment"
If there is no end signal input in this step, the process returns to the step of "SLn, Sn input" again, this time the spinning length SL2 at the second slab formation point SP2,
Enter the slab length S2. When the input of the spinning lengths SL1 to SLn and the slab lengths S1 to Sn at all the slab formation points SP1 to SPn is completed by repeating the above, an end signal is input in the step of "end judgment". Each data L0-Ln, A0-An, SL1-SLn, S1-
Sn is stored in the RAM of the storage device 34. Then, the process proceeds to a "work selection" step in which various works such as "thread data transfer", "rotation speed data transfer", "data confirmation", "tape writing", "average thickness calculation", "input continuation" can be selected. Here, the "input continuation" step is selected for inputting the spindle rotation speed pattern, and the spindle rotation speed pattern is input in step, step, and step. This pattern is for the traveler to use (20th in this example)
When spinning other counts (10th to 40th in this case) using, it is experimental so as to avoid adverse effects on the yarn due to increased ballooning and inconvenience such as yarn breakage caused by the thinning of the count. For example, in the pattern shown in FIG. 8 (a), the spindle rotation speed is successively input to the count. A spindle rotation speed pattern corresponding to the number spun in this manner is input, this pattern is also stored in the RAM of the storage device 34, and the "work selection" step is reached again. Here, in the main program to be described later, the steps and the case where the “thread pattern” and the “rotation number pattern” are transferred from the first computer 31 to the second computer 32 will be described.
When the output device 37 is connected to the second computer device 32 and the "thread data transfer" is selected prior to the transfer, the central processing unit 33 of the microcomputer 35 stores the count change data L0 to Ln and the count change data stored in the storage device 34. An output device that calculates the rate of change in yarn count for each standard unit length La (eg, 1 cm) of spinning length based on A0 to An, and uses the value of that rate as control data.
The data is sequentially output from 37 and stored in the second computer 32 in order. That is, the pattern set length Ln of the special thread 29 is set to, for example,
If the length is 70 m, the 70 m special thread 29 is used as the standard unit length La (1c
The control data a0 to a7001 indicating the rate of change in count at 7001 points, which are marked in m), are output while being processed.
The control data relating to the 001 number change is stored in the second computer device 32. Further, the control data SL1 to SLn and S1 to Sn related to the slab formation stored in the storage device 34 are also output by the selection of the item of "data transfer", and the second data is output.
It is stored in the computer device 32. The data SL1 to SLn, S1 to Sn for forming the slab are used together with the count data a0 to a7001 for each of the reference unit lengths La, whether or not the slab is formed (ON, OFF.
Signal) and converted and stored. Further, when "rotational speed data transfer" is selected, the rotational speed pattern is directly transferred to the second computer 32. Thus, the pattern setting of the special yarn pattern to be manufactured and the spindle rotation speed pattern setting for the spinning yarn number range of the special yarn are completed. The thread pattern 29 and the rotation speed pattern input to the first computer 31 are written on the cassette tape by selecting "tape writing" in the step, and the same data is written at a later date using this cassette tape. It can be stored in the first computer 31. As described above, the special yarn pattern can be set easily and in a short time by inputting desired data from the input device 36, and various kinds of patterns can be easily set in a short time. By writing the change pattern on the cassette tape and storing it, the pattern of the special yarn to be manufactured can be changed in an extremely short time.

Next, the second computer device 32 is composed of computer devices installed corresponding to the machine base, and as shown in FIG. 5, a microcomputer 42 comprising a central processing unit 40 and a storage device 41, an input device 43, an output Device 44, operation panel 45, machine base controller 46, first motor controller (inverter in this embodiment) 47 for controlling first variable speed motor 4, second motor controller for controlling second variable speed motor 5 (Inverter in this embodiment) 48, a third motor control device 49 for controlling the third variable speed motor (servo motor) 6, and a clutch control device 50 are provided. The RAM of the storage device 41 constitutes a storage means for storing the control data of the pattern set by the first computer device 31, and sequentially stores the control data input from the first computer device 31. ing. Further, the main program of the flowchart shown in FIG. 9 is written in the ROM of the storage device 41. This main program is started by turning on the start switch of the operation panel 45 after starting the spinning operation of the spinning machine.

Next, the operation of the drive device 3 based on the main program will be described. The main program is started by a start command from the operation panel 45, and "initial setting value input" is performed in step. Here, the standard number Ae (20th number in this embodiment) of the spun yarn, the standard draft D, and the twist coefficient K are input. Here, the reference number Ae and the reference draft D are set by changing the change gear between the front roller 14 and the back roller 10 without operating the third variable speed motor 6, and the twist coefficient K is set to the reference number Ae. It is set to a predetermined size in consideration of. Next, in steps and, if it is desired to load the special thread pattern and the spindle rotation speed change pattern stored in the first computer 31, the load signal is input from the operation panel 45 and the steps are performed as described above. Connect the output device 37 to the input device 43 and perform "data transfer". If not (when each pattern has already been input), go to the standard number Ae in step.
The spindle speed at the time of using the optimum traveler corresponding to is read by referring to the change pattern of the spindle speed, and the rotation speed Ne1 of the first variable speed motor 4 is obtained so that the spindle speed becomes R20. The second variable speed motor outputs to the motor control device 47, and based on the spindle rotation speed R20 and the twist coefficient K, the twist coefficient K is realized by the ratio of the peripheral speed of the front roller 14 to the spindle rotation speed. The rotational speed Ne2 of 5 is obtained and output to the second motor control device 48 to drive the first and second variable speed motors 4 and 5, and the reference number Ae,
A yarn having a twist coefficient K is spun on. Next, if a spinning signal of a special yarn is input from the operation panel 45 in step, the process proceeds to step. The case where the ratio of the change from the standard count to the count is a1 will be described below. When the length measuring pulse is transmitted from the pulsar 27 (length measuring device) in the step, the following “slab data set, first to third variable speed motor rotation speeds N1, N2, N3
Calculation ”step. This length measurement pulse is transmitted every time the spun yarn is spun by the reference unit length La (1 cm in this embodiment). In this step, the presence or absence (ON or OFF) of slab formation data at the spinning length position measured by transmitting the measurement pulse is set in the central processing unit 40, and
-Calculate the rotation speeds N1 to N3 of the third variable speed motors 4 to 6.
First, the control data a1 for the change in the number at the spinning length position is read, and the number B1 (a number slightly larger than the number 20) corresponding to this control data a1 is calculated, and the spindle rotation speed changes pattern line of the spindle rotation speed. In the figure, the number of revolutions N1 of the first variable speed motor 4 is calculated to such a degree that the value R1 corresponding to the number B1 is controlled. Further, the rotation speed N2 of the second variable speed motor 5 corresponds to the count B1 and the spindle rotation speed R1 and twist coefficient K read from the change pattern diagram.
Based on the above, the peripheral speed of the front roller 14 is calculated to be a value that is controlled to a value that realizes the twist coefficient K. Further, the rotation speed N3 of the third variable speed motor 6 is based on the peripheral speed of the front roller 14 calculated from the rotation speed N2 of the second variable speed motor 5 and the control data a1 relating to the change in the number, and the back roller 10
And the spinning speed of the second roller 17 is controlled by the spinning yarn control data a1.
The size is calculated to control so as to become the number corresponding to. Next, at step, control values corresponding to the rotation speeds N1 to N3 of the first to third variable speed motors 4 to 6 are output to the first to third motor control devices 47 to 49. 1st by this output
The motor control device 47 controls the rotation of the first variable speed motor 4 to set the rotation speed of the spindle 1 to a value corresponding to the spinning speed B1, and the second motor control device 48 controls the second variable speed motor 5
Is controlled to control the rotation speed of the front roller 14 so that the twist number of the spun yarn becomes a value corresponding to the twist coefficient K. Further, the third motor control device 49 controls the third variable speed motor 6 to rotate. The rotation is controlled to control the number of rotations of the back roller 10 so that the yarn count of the spun yarn has a size corresponding to the control data a1.

Next, proceed to the step, and if the slab request signal (whether to insert a slab) is input from the operation panel 45, proceed to the "slab data output" step and set the slab data (ON or OFF) set in the previous step. ) Is output and the slab data is ON, the clutch control device 50 temporarily disengages the electromagnetic clutch 28 to stop or decelerate the rotation of the front roller 14 to form a slab on the spun yarn. Since there is no slab formation data at the time of pulse transmission, the electromagnetic clutch 28 is not disengaged. In addition, the slab formation data
When ON, the length measurement pulse transmitted from the pulsar 27 is not used as the length measurement signal for transmitting the count change signal, but is used as the length measurement signal for controlling the size of the slab. ing. Then proceed to the step,
It is determined whether or not the predetermined length (full length) has ended, and if so, the process ends, and if not, the process returns to step again, and the above operation is repeated. Therefore, in the spun yarn, the count, the number of twists, the number of spindle revolutions with respect to the change in the count due to the traveler used, and the presence or absence of slab formation are controlled for each reference unit length La, and a special yarn having a pattern preset by the pattern setting means is used. It is spun and is wound at the optimum winding speed for the count depending on the traveler used.

In the above-described embodiment, the thread pattern and rotation speed pattern setting means is configured by the first computer device 31, but the storage capacity of the second computer device 32 is increased to provide these pattern setting means in the second computer device. May be. Further, the transmission 11 may be another mechanism that does not use a differential gear as illustrated. Further, in addition to the pattern in which the spindle rotation speed pattern is maximized at the count corresponding to the traveler used as described above, for example, as shown in FIG. What kind of pattern can be set as long as it is a pattern that improves the production efficiency as compared to the one that has been constant rotation under the worst condition in the past, such as the pattern that the spindle rotation speed corresponds to that count? I don't mind.

Further, a plurality of rotation speed patterns may be set for some used travelers, and an appropriate rotation speed pattern may be selected by setting the number when the initial value is input in the main program.

The drive system for driving the draft part and the spindle is not limited to that of the embodiment of the present application, and as shown in FIG. 10, the speed change mechanism 111 is provided with the second variable speed motor 5 in the drive system for connecting the spindle 1 and the front roller 14. Having a back roller 1
0 is independently driven by the third variable speed motor 6, the first
As shown in FIG. 1, the spindle 1, the front roller 14, and the back roller 10 are independent of each other, and the first to third variable speed motors 4 to 6 are provided.
Driven by the first variable speed motor 4 as shown in FIG.
Drive the whole machine with the spindle 1 to the front roller 14
And those equipped with speed change mechanisms 111 and 112 having second and third variable speed motors 5 and 6, respectively, in respective drive systems from the front roller 14 to the back roller 10, and as shown in FIG. Has a speed change mechanism 112 equipped with a third variable speed motor 6 while the spindle 1 and the back roller 10 are being driven by the first variable speed motor 4, and the front roller 14 is driven by an independent second variable speed motor 5. It may be such a thing.

As described above, in the present invention, the first variable speed motor capable of changing the spindle rotation speed, the second variable speed motor capable of changing the peripheral speed of the front roller with respect to the spindle rotation speed, A third variable speed motor capable of changing the peripheral speed of the back roller with respect to the peripheral speed of the front roller, the first variable speed motor being a spindle suitable for a preset special thread pattern and a traveler to be used, which is suitable for changing the count. The spindle rotation speed is controlled so as to correspond to the rotation speed pattern by controlling based on the control data representing the change pattern of the rotation speed, and the second variable speed motor is controlled based on the control data. The number of twists is changed to suit the count, and the third variable speed motor is controlled based on the control data to correspond the spun yarn count to the special yarn pattern. Since the spun yarn can be changed in a desired count by presetting a desired special yarn pattern, the spun yarn has a desired twist coefficient of a desired value. The number of twists can be changed as the count changes so that a practical special yarn can be spun out, and the spindle speed decreases and the feel of the yarn decreases as the count changes. It is possible to control the rotation speed to an appropriate value without yarn breakage, and to achieve high operating efficiency with less winding problems. Further, there are provided a yarn pattern setting means for setting a pattern of change in count, a rotation speed pattern setting means for setting a change pattern of the spindle rotation speed, and a storage means for storing control data representing these patterns. Since the first to third variable speed motors are controlled by the control data, the special yarn patterns having various various patterns can be stored by setting different special yarn patterns and storing them in the storage means. Can be manufactured, the pattern of the special yarn can be easily changed in a very short time, and it is very effective as this kind of apparatus which requires high-mix low-volume production.

[Brief description of drawings]

1 is a functional block diagram showing the configuration of the present invention, FIG. 2 is a perspective view showing a drive device, FIG. 3 is a sectional view of a transmission device, FIG. 4 is an enlarged view of an example of a special yarn, and FIG. FIG. 6 is a block diagram showing an electric control device, FIG. 6 is a flow chart for pattern setting, FIG. 7 is an explanatory view showing an example of a special yarn setting pattern, and FIG. 8 is an example of a spindle rotation speed change pattern. Figures and 9 are flow charts for special yarn manufacturing,
10 to 13 show another embodiment of the drive system. 1 ... Spindle, 4, 5, 6 ... First, second, third variable speed motor, 10 ... Back roller, 14 ... Front roller, 27 ... Pulsar, 31 ... First computer device, 32
...... Second computer device, 41 …… Storage device, 47, 48,
49 ...... first, second, and third motor control devices

Claims (1)

[Claims] 1. In a spinning machine in which a traveler goes up and down while rotating around a spindle to form a yarn, a first variable speed motor capable of changing the rotation speed of the spindle and a peripheral speed of a front roller with respect to the rotation speed of the spindle. A second variable speed motor that can be changed, a third variable speed motor that can change the peripheral speed of the back roller with respect to the peripheral speed of the front roller, and a yarn that sets a count change pattern related to the length of the special yarn to be spun. A pattern setting means and a rotation speed pattern setting means for setting a pattern of a spindle rotation speed change with respect to a change in count, which is suitable for a traveler, a storage means for storing control data representing a pattern by these pattern setting means, and a spinning length. Of the length measuring device and the spindle rotation speed based on the control data of the storage means related to the signal from the length measuring device. A first motor control device for controlling the first variable speed motor so as to correspond to the hand, and a twist number of the spun yarn adapted to the count based on the data of the storage means related to the signal from the length measuring device. A second motor control device for controlling the second variable speed motor, and a third variable speed control device so that the number of the spun yarn corresponds to the set pattern based on the data of the storage means in relation to the signal from the length measuring device. Third to control the motor
A special yarn manufacturing apparatus comprising a motor control device.