JPH0529698B2 - - Google Patents

Description

Detailed Description of the Invention (Objective of the Invention) Industrial Field of Application The present application supplies a fiber bundle drafted in a draft part to an air jet nozzle (hereinafter referred to as a nozzle), and in this nozzle, the fiber bundle is Special yarns in which the count (thickness) of the spun yarn changes continuously (for example, what is conventionally called structured yarn), which is related to a yarn manufacturing device that spins yarn by applying false twist to a bundle. The present invention relates to manufacturing equipment.

BACKGROUND TECHNOLOGY Conventional equipment for manufacturing this type of special yarn is all carried out using spinning machines, so when changing the count of spun yarn, it is necessary to change the number of twists in conjunction with the change in count. A device was needed to change the number of twists. In addition, as a special yarn manufacturing device in a conventional spinning machine, as disclosed in Japanese Patent Publication No. 38-15968, there are several devices interposed in a drive system between a back roller, a front roller, and a spindle. The operating rods of the continuously variable transmission are linked in series to the drive shaft of a servo motor, and the servo motor is controlled by a signal generator that follows a pattern cam to form knots in the spun yarn. What has been done is known.

Problems to be Solved by the Invention In the special yarn manufacturing device using the above-mentioned spinning machine, a device for changing the number of twists is required in addition to a device for changing the count, which increases the cost of the entire device. There was a problem. In addition, in the case of a device that uses a pattern cam, it takes a lot of time to change the pattern, making it difficult to manufacture special yarns with various patterns in a short time, and there are many restrictions on creating patterns for changing the count. As a result, there was a problem that it was difficult to manufacture a variety of special yarns.

(Structure of the Invention) Means for Solving the Problems In order to solve the above problems, the present invention supplies the fiber bundle drafted in the draft part to an air jet nozzle, and in the air jet nozzle, the fiber bundle is In a yarn manufacturing device that spins yarn while imparting a false twist to the yarn and winds the yarn with a winding device, the draft part drive system is equipped with a device that changes the relative rotational speed of the back roller and front roller. further comprising a length measuring means capable of measuring the spun length of the yarn; and a pattern setting means for setting a pattern of count change regarding the length of the special yarn to be manufactured; A storage means for storing control data representing the pattern set by the pattern setting means; and a storage means for controlling the transmission device based on the control data of the storage means in relation to the length measurement signal of the length measurement means, The invention is characterized by comprising a control device that changes the count of the machine to correspond to a set pattern.

Function: The function of the above structure is to set a pattern of count change regarding the length of the special yarn to be manufactured by the pattern setting means, and to store control data representing the pattern set by the pattern setting means in the storage means. . When spinning yarn by driving the drive system of the draft part and winding device, the length of the spun yarn is measured by the length measuring means, and the length measurement signal of the length measuring means and the storage means are stored. Based on the control data of Manufactures a rich variety of special yarns.

Embodiments The present application can be implemented with at least three embodiments as detailed below, and the embodiments are divided into the following two based on structural differences, one of which is shown in FIGS. 1 and 10. As shown in the figure, the entire drive system is rotated by one drive motor and a transmission is installed on this drive system, and as shown in Figure 11, the draft part drive system is rotated by two machines. The system is divided into two drive systems rotated by a drive motor, and a transmission is disposed at a predetermined position of the divided drive system.Each embodiment will be described below in order.

In the embodiment shown in FIG. 1, one drive motor 1 drives a drive system X of a draft part 2 and a drive system Y of a winding device 5, respectively.
The winding device 5 is composed of a delivery roller 3 and a traversing roller 4. Due to the rotation of the drive motor 1, the sliver 6 is drafted by the draft part 2 into a fiber bundle 6a, and this fiber bundle 6a
The spun yarn 8 is supplied to a nozzle 7 and false-twisted, and the spun yarn 8 is pulled out by a delivery roller 3 and is wound around a cheese 9 that is in pressure contact with a traversing roller 4. The above drive system X includes a drive motor 1 to a back roller 10 (second roller 1).
1 rotates synchronously with the back roller 10), and a second drive system 14 rotates the front roller 13. A transmission 18 consisting of a differential gear 16 and a servo motor 17 is disposed in the first drive system 12, and this transmission 18 allows the first drive system 12 to be fixed to the main shaft 19 of the differential gear 16 from the drive motor 1. The first transmission system 12a up to the gear 21 that meshes with the input gear 20, and the gear 2 that meshes with the output gear 22 of the differential gear 16.
3 to the back crawler 10
It is divided into. Axis 17 of servo motor 17
A wheel 17b fixed to the worm wheel 24 is meshed with the worm wheel 24, and a gear 25 provided at the shaft end of the worm wheel 24 is meshed with the input gear 26 of the differential gear 16, so that the rotation of the servo motor 17 is caused by the rotation of the differential gear 16. It is designed to be input to an input gear 26.

The differential gear 16 has a bearing 2 as shown in FIG.
A main shaft 19 rotatably supported by the main shaft 19, an input gear 20 and a sunwheel gear 32 wedged on the main shaft 19, and a main shaft 19 rotatably supported by the main shaft 19 on both sides of the sunwheel gear 32. The assembled inner gear 33 and output gear 22, and a plurality of planetary gears 34 which are rotatably supported on the side surface of the output gear 22 by pins 35 and meshed with the sun wheel gear 32 and the inner gear 32. It is made up of. In this differential gear 16, when the input gear 20 is rotated while the rotation of the inner gear 33 is stopped, the main shaft 19 and the sunwheel gear 32 are rotated integrally, and the planetary gear 34 is rotated. Since this planetary gear 34 meshes with the inner gear 33 which is not rotating, the planetary gear 34 makes a planetary movement around the inner circumference of the inner gear 33 to decelerate and rotate the output gear 22 in the same direction as the input gear 20. Also, when the inner gear 33 is rotated in the same direction as the input gear 20 while the input gear 20 is being rotated, the output gear 2
When the rotational speed of the output gear 22 is increased and the inner gear 33 is rotated in the opposite direction to the input gear 20, the rotational speed of the output gear 22 is decreased.

Next, 36 is a pulser exemplified as a rotation detector that detects the number of rotations (rotational speed) of the front roller 13, and a gear 37 fixed to its detection shaft 36a is meshed with the input gear 20 of the differential gear 16. ing. This pulser 36 also serves as length measuring means for measuring the spinning length and transmitting a length measuring pulse as a length measuring signal. The length measurement pulse transmitted from the pulser 36 is transmitted every time the front roller 13 sends out the spun yarn by a reference unit length (for example, 1 cm) in pattern setting, which will be described later. Note that the length measuring means may be provided separately from the pulser 36. Further, the pulses emitted from the pulser 36 are emitted at intervals extremely shorter than the standard unit length of the spun yarn, and the pulses emitted from the pulser 36 are transmitted in the central processing unit of the second computer device, which will be described later. It is also possible to count and transmit a length measurement signal for each reference unit length.

Next, an electric control device 38 for controlling the operation of the servo motor 17 to produce, for example, a special yarn 31 as shown in FIG. 3 will be explained. This electric control device 38 is a first control device for setting the pattern of the special yarn 31 to be manufactured, as shown in FIGS. 4 and 5.
A computer device 39 and a first computer device 39 for storing control data representing a pattern set by the first computer device 39 and for controlling the operation of the servo motor 17 according to the control data of the stored pattern during spinning. 2 computer device 40. The first computer device 39 is a hand-held computer device such as a commercially available pocket computer, thereby reducing manufacturing costs. Further, this first computer device 39 is also used as a first computer device for a plurality of machines, and by carrying this first computer device 39 close to the second computer device 40 of each machine, control data of a setting pattern can be transmitted. The information can be input directly to the second computer device 40. Note that the first computer device 39
The system may be configured with a desktop microcomputer, and a cassette tape may be used to transfer control data. The first computer device 39 is the special yarn 3 to be manufactured.
It constitutes a pattern setting means for setting a pattern of count change regarding the length of 1, and includes a microcomputer 43 consisting of a central processing unit 41 and a storage device 42, an input device 44 such as a keyboard, an output device 45, and a tape recorder 46. We are prepared. ROM (read-only memory) of this storage device 42
A program of the flowchart shown in FIG. 6 is written in the . The pattern of the special thread 31 is set based on this program as follows.
First, as shown in Figure 7, a graph is prepared in which the vertical axis is the ratio A (percentage) of the change in count relative to the reference count, and the horizontal axis is the spinning length L (centimeter), and the manufacturing process is plotted on this graph. Special thread 3
Pattern 1 is expressed by a polygonal line 47. In this case, the rate of change in the number is based on the reference number 0, and the thicker case is shown as a positive value, and the case thinner than this is shown as a negative value, and the standard unit length of the spinning length L is
Let La be 1 cm, for example, and the maximum length of the pattern setting length Ln be 70 m. Next, the spinning length values L0, L1, L2, . . . Ln and the count change ratios A0, A1, A2, . . . An at each bending point P0, P1, P2, . after that,
The program shown in FIG. 6 on the microcomputer 43 is started. When this program is started, the user first selects whether to enter data from the keyboard or from the tape recorder at the ``input'' step, and when the keyboard input signal is input, the program advances to the next ``initial input'' step. In this "initial input" step, the rate of change in the number A0 with respect to the reference number at the start time is inputted from the input device 44. Note that the value of L0 is set to zero by inputting A0. When this initial input is performed, the process proceeds to the next step of "inputting count data Ln, An", and in this step, the spinning length L1 and the rate of count change at the first inflection point P1 of the pattern on the graph are Enter A1. When L1 and A1 are input, the process advances to the next step of ``completion determination'', and if no termination signal is input in this step, the process returns to the ``Ln, An input'' step, and this time the second refraction Spinning length L2 and count change ratio A at point P2
Enter 2. When the input of the spinning lengths L0 to Ln and the count change ratios A0 to An at all the bending points P0 to Pn is completed by repeating the above steps, an end signal is input at the step of "completion determination".
Each data L0 to Ln input as above,
A0 to An are stored in RAM (data memory) in the storage device 42 of the microcomputer 43. Upon input of the end signal, the process advances to the next step of "work selection". This ``work selection'' step includes ``data transfer,'' ``data confirmation,'' ``writing to tape,'' and ``average thickness calculation.''
It is now possible to select from a variety of tasks. In this "work selection" step, for example, the output device 4
5 is connected to the second computer device 40 and the "Data Transfer" item is selected, the central processing unit 41 of the microcomputer 43 transfers the count change data L0 to L0 stored in the storage device 42.
Based on Ln and A0 to An, the ratio of change in count for each standard unit length La (for example, 1 cm) of the spinning length is calculated, and the value of the ratio is sequentially output from the output device 45 as control data. computer device 4
0 in order. That is, if the pattern setting length Ln of the special thread 31 is, for example, 70 m, this 70 m
The special thread 31 was cut into standard unit length La (1 cm).
Control data indicating the rate of change in count at 7001 locations (7000 locations in the case of continuous repetition) is output while being processed, and control data regarding the 7001 changes in count is stored in the second computer device 40. Note that the arithmetic processing of the control data may be performed by the second computer device 40.
With the above steps, the pattern setting of the special yarn to be manufactured is completed. If you wish to store the data L0 to Ln and A0 to An related to number changes stored in the storage device 42 on a cassette tape,
Select the "Write to tape" item in the "Work selection" step above. By selecting this item, each data stored in the storage device 42 is written to the cassette tape of the tape recorder 46. If you need the data written on the cassette tape in this way at a later date, set the cassette tape in the tape recorder 46 and input the tape recorder input signal at the "Imput" step of the program. Proceed to the step ``Reading data from a cassette tape'' and transfer the data from this cassette tape to the storage device 4.
2 can be stored again. As mentioned above, the pattern of the special thread 31 can be set easily and in a short time by inputting desired data from the input device 44, and various different patterns can be set easily and in a short time. By storing relevant data on a cassette tape (or a disk), the pattern of the special yarn to be manufactured can be changed in an extremely short time.

Next, the second computer device 40 is composed of a computer device installed corresponding to the machine base, and as shown in FIG. 7, a microcomputer 49 consisting of a central processing unit 47 and a storage device 48;
It includes an input device 50, an output device 51, an operation panel 52, a machine control device 53, and a motor control device 54 that controls the operation of the servo motor 17. The RAM of the storage device 48 is connected to the first computer device 3.
9 constitutes a storage means for storing control data of a pattern set by the first computer device 39, and is adapted to sequentially store control data inputted from the first computer device 39. In addition, the storage device 48
The main program of the flowchart shown in FIG. 8 and the spin program of the flowchart shown in FIG. 9 are written in the ROM. The main program and the spin program are started by turning on the start switch on the operation panel 52 after starting the spinning operation of the machine. This spin program is for inputting the detection value CN of the pulsar 36 and writing it into the RAM of the storage device 48. In the drawing, interrupt processing is performed every 0.2 seconds, and the detection value CN at that point is input and written to the storage device 48. 4
The memory is updated to 8 RAM.

Next, the drive system X used in the main program above,
The operation of Y will be explained. First, drive motor 1
When the drive pulley 1a of the drive motor 1 is rotated, the rotation of the drive pulley 1a of the drive motor 1 is transmitted to the front roller 13 of the draft part 2 by the drive system X.
It is transmitted to the delivery roller 3 and traverse roller 4 of the winding device 5 by the drive system Y, and the front roller 1
3. The delivery roller 3 and the traverse roller 4 are rotated in synchronization. Further, the rotation of the driving pulley 1a is controlled by the first transmission system 12a, the differential gear 16 and the second transmission system 1.
By 2b, the cross roller 10 and the middle roller 1
3, and the back roller 10 and middle roller 13 are rotated. In this case, the rotation ratio between the front roller 13 and the back roller 10 is determined by applying a predetermined draft to the fiber bundle 6a when the servo motor 17 stops rotating (or rotates in one direction at a predetermined speed). It is set to spin a spun yarn of a certain number, and when the servo motor 17 is rotated forward or reverse (or increases or decreases), the rotation ratio between the front roller 13 and the back roller 10 changes to change the count of the spun yarn. (thickness) can be changed. In addition, in the nozzle 7, two vortex nozzle bodies (not shown) apply swirling force to the supplied fibers in mutually opposite directions to give the fibers a false twist and turn them into burnt yarn with remaining actual twist. Spun. Note that a conveyor band or a collector device may be disposed between the front roller 13 and the nozzle 7, and the nozzle 7 may be constituted by one vortex nozzle body. When the main program starts with the drive motor 1 being driven to spin out the spun yarn as described above, the program first proceeds to the step of "initial setting value input", and in this step, the standard count of the spun yarn is input. Input Ae and standard draft D, respectively. The values of the reference number Ae and the reference draft D are set by the gears of the drive system X, etc. When the above values of Ae and D are input, the process advances to the next "Pattern Load" step. If there is a putter load signal input, the process advances to the "Pattern Load" step, and if there is no pattern load signal input, the process advances directly to the "Pattern Load" step. Proceed to the next step of "machine operation determination", and if the machine is in operation, proceed to the next step of "length measurement pulse determination". In this step, when a length measurement pulse is transmitted from the pulser 36 (length measurement device), the process advances to the next step of "servo motor rotation speed calculation". This length measurement pulse is used when the spun yarn has a reference unit length La (for example, 1
cm) Sent every time a minute is spun. In the above step, the number of rotations N of the servo motor 17 is calculated for controlling the change in the count of the spun yarn at the spun length position whose length is measured by transmitting the length measurement pulse. The number of revolutions N of the servo motor 17 is determined by control data A0 to A0 regarding number changes stored in the storage device 48.
Based on the first data A0 of An and the detected value of the pulser 36 (representing the rotational speed of the front roller 13) stored by the interrupt processing, the rotational speed of the back roller 10 and the second roller 11 is determined by the spun yarn. The size is calculated to control the number corresponding to the data A0. When these calculations are completed, the process advances to the next step of ``determining change in count.'' In this step, the count change request signal is input in advance. (Turn on the snap switch.) Then proceed to the next "N output" step, and apply the control value N calculated in the above step to the motor control device 54 as a control device.
Output to. As a result, the motor control device 54 controls the rotation of the servo motor 17 to control the rotation speed of the back roller 10 so that the count of the spun yarn corresponds to the control data A0. As a result, the back roller 10 is rotated at such a speed that the yarn count spun from the nozzle 7 corresponds to the control data A0, and drafts the fiber bundle 6a between it and the front roller 13. The fiber bundle 6a drafted in this way is supplied to the nozzle 7 and twisted, and is pulled out by the delivery roller 3 as a twisted yarn consisting of false twist and actual twist, and is then turned into a twisted yarn by the traversing drum 4. It is wound up at 9. Next, the process returns to the "machine operation determination" step, and the above operation is repeated every time a length measurement pulse is transmitted. Therefore, the count size of the spun yarn is controlled for each reference unit length La, and is formed into a special yarn with a pattern preset by the pattern setting means. The request signal in the step of "number change determination" above is sent to the operation panel 7.
It is designed to be selected by a selection switch attached to 7. The above pattern is repeated by continuous spinning to produce a specific length of yarn.

In the above embodiment, the first computer device 39 constitutes the pattern setting means, but the second computer device 39 constitutes the pattern setting means.
By increasing the storage capacity of the storage device 48 in the computer device 40, the second computer device 40 may constitute the pattern setting means, and the first computer device 39 may be omitted. Furthermore, a single computer device may control a plurality of manufacturing devices. Alternatively, only the winding device may be driven by a separate motor.

Next, a different embodiment shown in FIG. 10 will be described. The biggest difference between the embodiment shown in FIG. 10 and the embodiment shown in FIG. 1 above is that the embodiment shown in FIG. However, in this embodiment, the purpose is achieved by changing the rotation speed of the front roller 13e and the winding device 5e, and is constructed as follows.

As is clear from the drawings, the drive systems Xe and Ye of this embodiment are constructed in the same manner as the drive systems X and Y shown in FIG. A transmission 18e consisting of a servo motor 17e and a servo motor 17e is provided. In the differential gear 16e of this embodiment, the output gear 22 of the above embodiment is used as the input gear 22e, and the rotation of the drive motor 1e is inputted.
The input gear 20 in the illustrated embodiment is the output gear 20e.
is used as. Further, a rotation detector 36e is attached to the drive system Xe to detect the rotation speed of the bag crawler 10e.

In this embodiment configured as described above, when the drive motor 1e is rotated, as is clear from the drawing, the rotation of the drive motor 1e is directly transmitted to the second rollers 10e and 11e to rotate them. On the other hand, as the input gear 22e rotates, the planetary gear 34e, which meshes with both the inner gear 33e and the sun foil gear 32e fixed to the main shaft 19e and is pivotally supported by the input gear 22e, rotates the sun foil while performing planetary motion. The gear 32e is rotated to output the rotation of the drive motor 1e to the output gear 20e fixed to the main shaft 19e, and the front roller 13e is rotated to spin yarn of a standard thickness. In addition, servo motor 1
The operation of 7e is performed in substantially the same manner as in the embodiment shown in FIG. 1, and redundant explanation will be omitted here. In addition, the same or equivalent components as those in the above embodiment are given the same reference numerals as the corresponding parts with an alphanumeric letter "e" to omit redundant explanation, and the alphabetic letter "f" is also given in the example shown in FIG. to omit redundant explanations.

The embodiment shown in FIG. 11 is based on draft part 2.
The drive system Xf that controls the rotation of
Depending on the cross roller 10f (second roller 1
1f is a second drive system 14f that rotates the synchronized rotation)
The second drive motor 101 is provided with a speed change function, such as a servo motor, and the second drive motor 101 is used as a speed change device, and the first drive system 12f has a rotation detection device that detects the rotation speed of the front roller 13f A total of 36 f are installed.

As is clear from the above configuration, this embodiment uses the detection value of the rotation detector 36f to control the second drive motor 1.
01 is electrically controlled to change the speed of the first
As in the embodiment shown in the figure, the number is changed by changing the speed of the bag crawler 10f. In addition, in the above embodiment, the first
The drive motor 1f is provided with a speed change function, and the tenth
It is possible to implement this by changing the speed of the front roller 13f and the winding device 5f as in the embodiment shown in the figure.
In this case, the rotation detector 36f is naturally arranged in the second drive system 14f.

(Effects of the Invention) As described above, in the present invention, the drive system of the draft part is provided with a transmission device capable of changing the relative rotational speed of the back crawler and the front roller, and this transmission device is set in advance. Since the count of the spun yarn can be changed to correspond to the set pattern by controlling based on the control data representing the pattern of the special yarn, it is possible to change the count of the spun yarn in accordance with the set pattern by setting the desired special yarn pattern in advance. A desired change in count can be applied to the actual spun yarn, thereby making it possible to produce a practical special yarn with a unique texture that can be freely changed in count. It also includes a pattern setting means for setting a pattern of count change regarding the length of the special yarn to be manufactured, and a storage means for storing control data representing the set pattern. Since the above-mentioned speed change device is controlled, by setting various special yarn patterns and storing them in the storage means, special yarns with patterns rich in various variations can be manufactured. The yarn pattern can be changed easily and in an extremely short time, which is very effective for this type of device that requires high-mix, low-volume production. In addition, since it was implemented in a device that spins yarn while imparting false twist using an air jet nozzle, it is possible to produce special yarn with a wide variety of counts by changing the draft amount in the draft part, making it suitable for spinning machines. It has the effect of significantly reducing costs compared to the implementation method.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, in which Fig. 1 is a perspective view showing the drive system, Fig. 2 is a sectional view of the transmission,
Fig. 3 is an enlarged view showing an example of special thread, Fig. 4 is a block diagram of the invention, Fig. 5 is a block diagram showing an electric control device, Fig. 6 is a flowchart for pattern setting, Fig. 7 is an explanatory diagram showing an example of a setting pattern for special threads, Fig. 8 is a flowchart for manufacturing special threads, Fig. 9 is a flowchart showing interrupt processing, and Figs. 10 and 11 are for different drive systems. It is a perspective view showing an example. X... Drive system, 2... Draft part, 5...
Winding device, 7... Air jet nozzle, 10...
...Xx roller, 13...Front roller, 36
...Pulser (length measuring means), 39...First computer device (pattern setting means), 48...Storage device (storage means), 54...Motor control device (control device).

Claims (1)

[Scope of Claims] 1. A fiber bundle drafted in a draft part is supplied to an air jet nozzle, a yarn is spun while imparting a false twist to the fiber bundle within the air jet nozzle, and the yarn is taken up by a winding device. In a yarn manufacturing device that winds the yarn by a spinner, an irregular device is installed in the drive system of the draft part to change the relative rotational speed of the back roller and front roller, and the length of the yarn being spun is measured. furthermore, a pattern setting means for setting a pattern of count change regarding the length of the special yarn to be manufactured; and a storage means for storing control data representing the pattern set by the pattern setting means. and,
and a control device that controls the transmission device based on the control data of the storage means in relation to the length measurement signal of the side length means, and changes the count of the spun yarn so as to correspond to the set pattern. Special yarn manufacturing equipment featuring: 2. The cross crawler and the front roller are configured to be driven by one drive motor, a transmission is interposed in the drive system between the cross crawler and the front roller, and the transmission is connected to a differential gear and the differential gear. 2. The special yarn manufacturing apparatus according to claim 1, further comprising a servo motor that performs variable speed control. 3. The drive system of the draft part is a first drive system that rotates a front roller using a first drive motor;
The special yarn according to claim 1, wherein the special yarn is divided into a second drive system in which the cross roller is rotated by a second drive motor, and the second drive motor is provided with a speed change function to form a speed change device. manufacturing equipment. 4. Data input means for inputting length data representing the spinning length at each count variation position of the special yarn to be manufactured and count data indicating the ratio of count variation with respect to the reference count, and a memory for storing the input data. and an arithmetic means for arithmetic processing of control data representing the ratio of the count variation for each reference unit length to the reference count based on the stored data, as a pattern setting means. A manufacturing device for special yarn according to scope 1.