JPS6189331A - Apparatus for producing particular yarn - Google Patents

Abstract

PURPOSE:To control the yarn count number of a spun yarn according to the preset pattern, by controlling the speed regulator of the driving system of a draft part according to the control data representing the pattern of the particular yarn to be produced. CONSTITUTION:The driving system of the draft part 2 is furnished with a speed regulator 18 to enable the variation of the relative rotational speed between the back roller 10 and the front roller 13. The yarn count number of a spun yarn can be varied in a manner corresponding to a preset pattern by controlling the speed regulator 18 according to the control data representing the pattern of the particular yarn to be produced. Desired variation in the yarn count number can be applied to single spun yarn by presetting the pattern of the particular yarn.

Description

Detailed Description of the Invention (Object 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 straft yarn) The present invention relates to manufacturing equipment.

2. Description of the Related Art Conventional equipment for producing special yarns of this type uses 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 for conventional spinning machines,
As disclosed in Japanese Patent No. 968, several control levers of continuously variable transmissions interposed in the drive system between the back roller, front roller, and spindle are connected in series and connected to the drive shaft of the servo motor. Relatedly, there is known a method in which the servo motor is controlled by a signal generator that follows a pattern cam to form knots in the spun yarn.

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. However, there was a problem in that it was difficult to manufacture a special yarn with a wide variety of variations.

(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 temporarily transforms the fiber bundle into a fiber bundle in the air jet nozzle. In a yarn manufacturing device that spins yarn while giving it a twist and winds the yarn with a winding device, the draft part drive system is designed to change the relative rotational speed of the back roller and front roller. furthermore, a length measuring means capable of measuring the spun length of the yarn, a pattern setting means for setting a pattern of count change regarding the length of the special yarn to be manufactured, and this pattern setting. storage means for storing control data representing a pattern set by the means; and controlling the transmission device based on the control data of the storage means in relation to the length measurement signal of the sub-length means, and setting the count of the spun yarn. It is characterized by comprising a control device that changes the pattern in accordance with the pattern. - Effect The effect of the above configuration is to set the pattern of count change regarding the length of the special yarn to be manufactured by the pattern setting means,
Control data representing the pattern set by the pattern setting means is stored 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 a length measuring means, and the dIl length signal of this length measuring means is used to control the storage means. Based on the data, the control device controls the gear ratio of the transmission, changes the relative rotational speed between the back roller and the front roller, and changes the spun yarn count to correspond to the set pattern. We manufacture special threads.

Embodiments The present application can be implemented by 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, the entire drive system is rotated by one drive motor, and this! The one with a transmission installed in the drive system, and the 11th
As shown in the figure, the drive system of the draft part is divided into two drive systems rotated by one drive motor,
A transmission is disposed at a predetermined position of a divided drive system, and each embodiment will be described in turn below.

In the embodiment shown in FIG. 1, the drive system X of the draft part 2 and the drive system Y of the winding device 5 are respectively driven by one drive motor l.

The winding device 5 includes a delivery roller 3 and a traversing roller 4.
It consists of Due to the rotation of the drive motor 1,
The sliver 6 is troughed in the draft part 2 to form a fiber bundle 6a, this fiber bundle 6a is supplied to a nozzle 7 and false twisted, and the spun yarn 8 pulled out by the delivery roller 3 is traversed. It is wound around a cheese 9 that is in pressure contact with a roller 4. The drive system X described above includes a drive motor 1 to a back roller 10 (second roller 11).
is divided into a first drive system 12 that rotates in synchronism with the back roller 10) and a second drive system 14 that rotates the front roller 13. The first drive system 12 includes a differential gear 16
A transmission device 18 consisting of a servo motor 17 and a servo motor 17 is provided,
This transmission 18 allows the first drive system 12 to connect the drive motor 1 to the input gear 2 fixed to the main shaft 19 of the differential gear 16.
A first transmission system 12a up to a gear 21 that connects 1v8 to 0;
A gear 23 meshing with the output gear 22 of the differential gear 16
and a second transmission system 12b extending from the rear roller 10 to the back roller 10. The wheel 17b fixed to the shaft 17a of the servo motor 17 is meshed with the worm wheel 24, and the gear 25 provided at the shaft end of the worm wheel 24 is meshed with the input gear 26 of the differential gear 16. The rotation is input to the input gear 26 of the differential gear 16.

The differential gear 16 is mounted on bearings 27 and 28 as shown in FIG.
A main shaft 19 is rotatably supported by a main shaft 19, an input gear 20 and a sunwheel gear 32 are wedged to the main shaft 19, and a main shaft 19 is rotatably assembled to the main shaft 19 on both sides of the sunwheel gear 32. inner gear 3
3, an output gear 22, and a plurality of planetary gears 34 rotatably supported by a pin 35 on the side surface of the output gear 22 and meshed with the sun wheel gear 32 and the inner gear 32. . This differential gear 1
6, when the input gear 20 is rotated while the rotation of the inner gear 33 is stopped, the main shaft 19 and the sun wheel gear 32 are rotated integrally to rotate the planetary gear 34. - Since the gear 34 meshes with the inner gear 33 which is not rotating,
The output gear 22 is rotated at a reduced speed in the same direction as the input gear 20 by planetary motion on the inner circumference of the inner gear 33, and the inner gear 33 is rotated while the input gear 20 is being rotated. When the inner gear 33 is rotated in the same direction as the input gear 20, the rotation speed of the output gear 22 is increased, and when the inner gear 33 is rotated in the opposite direction to the input gear 20, the rotation speed of the output gear 22 is decreased. It has become.

Next, 36 is the number of rotations (rotational speed) of the front roller 13
A gear 37 fixed to a detection shaft 36a of the pulser is meshed with an input gear 20 of a differential gear 16. This pulser 36 also serves as length measuring means for determining the spinning length dI and transmitting a sub-length pulse as a sub-length signal. The length measurement pulse sent from this pulser 36 is used by the small freon roller 13 to adjust the spun yarn to a standard unit length in pattern setting, which will be described later.
cm) is sent out every time it is sent.

Note that the above-mentioned sub-head 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, the operation of the servo motor 17 is controlled so that, for example, the third
Electric control device 3 for manufacturing special thread 31 as shown in the figure
8 will be explained. This electrical control device 38 includes a first computer device 39 for setting the pattern of the special yarn 31 to be manufactured, and a pattern set by the first computer device 39, as shown in FIGS. A second computer device 40 stores control data representing the pattern and controls the operation of the servo motor 17 according to the control data of the stored pattern during spinning. The first computer device 39 is constructed of a hand-held computer device such as a commercially available pocket computer in order to reduce 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, the control data of the setting pattern can be transferred to the second computer device. The information can be input directly to the computer device 40. Note that the first computer device 39 may be configured with a desktop microcomputer, and a cassette tape may be used for transferring control data. The first computer device 39 constitutes a pattern setting means for setting a pattern of count change regarding the length of the special yarn 31 to be manufactured, and the microcomputer 4 comprises a central processing unit 41 and a storage device 42.
3. It is equipped with an input device 44 such as a keyboard, an output device 45, and a tape recorder 46.

A program of the flowchart shown in FIG. 6 is written in the ROM (read-only memory) of this storage device 42.The pattern of the special thread 31 is set based on this program as follows.

First, as shown in Fig. 7, the vertical axis represents the ratio A (percentage) of the change in count relative to the reference count, and the horizontal axis represents the spinning length L (
Prepare a graph that takes centimeters) and plot the pattern of the special yarn 31 that you wish to manufacture on this graph using a polygonal line 47.
Expressed as in this case.

The rate of change in count is based on the standard count of O, and when it is thicker, it is shown as a positive value, and when it is thinner, it is shown as a negative value.
Furthermore, the reference unit length La of the spinning length L is, for example, 1 cm, and the maximum length of the pattern setting length Ln is 70 m.

Next, each bending point PO, P1 . P2,・
・・Value of spinning length at Pn LO1L1, L2, ・・
・Ratio of Ln and number change AO, A1. A2. ...An
seek. Thereafter, the program shown in FIG. 6 on the microcomputer 43 is started. When the ProGuerra 11 is started, first, in step ``input J'', a selection is made as to whether data will be input from the keyboard or from the tape recorder, and when a keyboard input signal is input, the process proceeds to the next ``initial input'' step ■. In this "initial input" step (2), the rate of change in number AO for the base 7 sobanpei at the start time is inputted from the input device 114. Note that the value of LO is set to zero by inputting AO. When this initial input is performed, the next “number data Ln
, An input'', and in this step C■, the spinning length Ll and the count change ratio AI at the first pressure contact point P1 of the pattern on the graph are input. Once Ll and AI have been inputted, the process proceeds to the next step ``completion determination'', and if there is no termination signal input in this step σ), the process returns to step ``rLn, An input'' again, and this time The spinning length L2 at the second bending point P2 and the count change ratio A2 are input. By repeating the above, the spinning length LO to L at all the refraction points P O = P n
When the input of n and the count change ratio AO-An is completed, an end signal is input in step (2) of "completion determination".

Each data input as above L O = L n
.

AO to An are stored in the RAM (data memory) in the storage device 42 of the microcomputer 13. By inputting the above end signal, proceed to the next [step ■ of work selection j]. In this "work selection" step ■,
You can select various tasks such as ``Data Transfer'', ``Data Confirmation'', ``Writing to Tape'', and ``Average Thickness Calculation''.

If, for example, the output device 45 is connected to the second computer device 40 and the "data transfer" item is selected in this "work selection" step (3), the microcomputer-4
The central processing unit 41 of No. 3 determines the unit length La (for example, Icm
), the value of the ratio is sequentially output from the output device 45 as control data and stored in the second computer device 40 in order. That is,
For example, if the pattern setting length Ln of the special thread 31 is 70 m, this 70 m special thread 31 is set to the standard unit length La.
Control data indicating the rate of change in count at 7001 points (7000 points in the case of continuous repetition) carved in 1 cm is output while being processed, and the control data regarding these 7001 changes in count is sent to the second computer device 40.
is memorized. 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. Note that if you wish to store and store the data LO to Ln and AO to An regarding the number change stored in the storage device 42 on a cassette tape, please follow the step ① of the above "work selection".
Select the "Write to tape" item. 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 in step ``Input'' of the program. Proceeding to step (2) of ``Reading data from cassette tape'', the data on this cassette tape can be stored in the storage device 42 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 patterns can be set easily and in a short time. By storing pattern-related 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, an input device 50, Output device・5
1. Operation panel 52, machine control device 53, servo motor 17
A motor control device 54 is provided to control the operation of the motor. The RAM of the storage device 48 constitutes a storage means for storing the control data of the pattern set by the first computer device 39.
Control data input from 9 is sequentially stored. Further, the main program shown in the flowchart shown in FIG. 8 and the spin proger 11 shown in the flowchart shown in FIG. 9 are written in the ROM of the storage device 48. 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 pulser 36 and writing it into the RAM of the storage device 48, and in the drawing, it is 0.
．． Interrupt processing is performed every two seconds, and the detected value CN at that time is input and updated in the RAM of the storage device 48.

Next, the operation of the drive systems X and Y based on the above main program will be explained. First, when the drive motor l is rotationally driven, the rotation of the drive pulley 1a of the drive motor l is transmitted to the front roller 13 of the draft part 2 by the drive system X, and the delivery of the winding device 5 is performed by the drive system Y. - It is transmitted to the roller 3 and the traverse roller 4, and the front roller 13, the delivery roller 3, and the traverse roller 4 are rotated in synchronization. Further, the rotation of the drive pulley la is transmitted to the back roller 10 and the middle roller 13 by the first transmission system 12a, the differential gear 16, and the second transmission system 12b, so that the back roller 10 and the middle roller 13 are rotated. In this case, the rotation ratio between the front roller 13 and the back roller 10 is t61 if &
It is set to give a predetermined draft to the bundle 6a and spin out a spun yarn of a reference count, and when the servo motor 17 is rotated forward or reverse (or increases or decreases), the front roller 13
The rotation ratio between the backrow 510 and the backrow 510 is changed to change the number (thickness) of the 7rh yarn. In addition, t5V? supplied to the nozzle 7? 11: Two swirl nozzle bodies (not shown) apply swirling force in opposite directions to give false twist to the fibers.

Then, the remaining real twist is heated and 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 while the drive motor 1 is being driven to spin out the spun yarn as described above, the process first proceeds to the "initial setting value input" step (■), and in this step (■) the spinning begins. Standard thread count A
e.

Input the base q traft D, respectively. The values of this reference number 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 proceeds to the next "pattern load" step ■, and if the pattern load signal is input, the process proceeds to the "pattern load" step ■, and when the pattern load signal is input. If not, proceed to step [phase] of "machine operation determination" in the direct method, and if the machine is in operation, proceed to the next □ "length measurement pulse determination" step @. When a sub-length pulse is transmitted from the pulser 36 (length measuring device) in this step (2), the process proceeds to the next step @ of "servo motor rotation speed calculation". This length measurement pulse is transmitted every time the spun yarn is spun by a basic unit length La (for example, 1 cm). 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 measured by the transmission of the length measurement pulse. The rotation speed N of this servo motor 17 is stored in the storage device 48.
The back roller 10 is controlled based on the first data AO of the control data AO to rl related to the count change stored in Then, the rotation speed of the second roller 11 is calculated to a value that controls the spun yarn to have a count corresponding to the data AO.

When these calculations are completed, the process proceeds to the next step ◎, which is "determination of count change," and since the count change request signal has been input in advance in step 0 (when manufacturing straft yarn, the count change is determined during machine operation). ), turn on the snap switch for change discrimination), step [phase] of the next "N output"
Then, the control value N calculated in step (2) above is output to the motor control device 54 as a control device. 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 AO. 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 AO, and the fiber bundle 6a is trafted between the fiber bundle 6a and the front roller 13. The fiber bundle 6 drafted in this way
The fiber a is supplied to a nozzle 7 and heated, and is pulled out by a delivery roller 3 as a heated yarn consisting of false twist and real twist, and then wound around a cheese 9 by a traversing drum 4.

Next, return to step (2) of ``R machine operation determination'' and repeat the above operation every time the JI long pulse is transmitted. Therefore, the count size of the spun yarn is controlled for each reference unit length La, and the spun yarn is formed into a special yarn with a pattern preset by the pattern setting means. Above “number change size 531b J
The request signal in step ◎ is selected by a selection switch attached to the operation panel 77. 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 a pattern setting means of 4M, but by enlarging the storage capacity of the storage device 48 in the second computer device 40, the pattern setting device can be set by the second computer device 40. constitute means.

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 speed of the rotation of the front roller 13e and the winding device 5e, and is configured as follows. .

As is clear from the drawings, the drive systems Xe and Yc of this embodiment are constructed in the same manner as the drive systems X and Y shown in FIG. 2, a transmission 11'l consisting of a differential gear 16e and a servo motor +70;
e is arranged. On the other hand, in the differential gear +6c 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 le is inputted, and the input gear of the embodiment of FIG. -20 is used as output gear -20C. The drive system Xe also includes a rotation detector 3 that detects the rotation speed of the back roller 10e.
68 is installed.

In this embodiment configured as described above, when the drive motor 1e is rotated, as is clear from the first drawing, the rotation of the drive motor 1e changes to both the back and second rollers 10e,
On the other hand, the rotation of the input gear 22e engages both the inner gear 33e and the sunwheel gear 32e fixed to the main shaft 19e, and the planetary gear is pivotally supported by the input gear 22e. - The gear 34e rotates the sun wheel gear 32e while performing planetary motion, outputs the rotation of the drive motor 1e to the output gear 20e fixed to the main shaft 19e, rotates the front roller 13e, and spins yarn of standard thickness. spin out. Incidentally, the operation of the servo motor 17e is performed in substantially the same manner as in the embodiment shown in FIG. 1, and a 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 alpha bent letter "e" to omit redundant explanations. is added to omit duplicate explanation.

In the embodiment shown in FIG. 11, a drive system Xf that controls the rotation of the draft part 2f is replaced by a first drive system 12 that rotates a front roller 13f by a first drive motor 1f.
f and the back roller 10 by the second drive motor 101.
(The second roller 11f rotates synchronously) into a second drive system 14f, and 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. 1 The drive system 12f includes a rotation detector 36 that detects the rotation speed of the front roller 13f.
f is arranged.

As is clear from the above configuration, this embodiment has a rotation detector 3.
The speed of the second drive motor 1O1 is electrically controlled based on the detected value of 6f, and the speed of the back roller 10f is changed as in the embodiment shown in FIG. 1 to change the number. Furthermore, in the second embodiment, it is also possible to provide the first drive motor 1f with a speed change function and to change the speeds of the front roller 13f and the winding device 5f as in the embodiment shown in FIG.

In the second case, the rotation detector 36 [is the second drive system 14].
f.

(Effects of the Invention) As described above, in the present invention, a transmission device capable of changing the relative rotational speed of the back roller and the front roller is provided in the drive system of the driver 71-par 1-, and this transmission device is controlled based on control data representing a preset special yarn pattern, and the count of the spun yarn can be changed to correspond to the set pattern, so a desired special yarn pattern can be set in advance. By doing this, it is possible to impart a desired count change to a single spun yarn, thereby making it possible to produce a practical special yarn with a unique texture and a freely variable count change. 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. This has the effect of significantly reducing the amount of varnish compared to the previous method.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is a perspective view showing a drive system, and FIG. 2 is a sectional view of a transmission. Fig. 3 is an enlarged view showing an example of special thread, Fig. 4 is a configuration diagram of the invention, Fig. 5 is a block diagram showing an electric control device, and Fig. 6 is a block diagram showing an electric control device.
The figure is a flowchart for pattern setting, Figure 7 is an explanatory diagram showing an example of a setting pattern for special yarn, Figure 8 is a flowchart for manufacturing special yarn, Figure 9 is a flowchart for interrupt processing, and 11 are perspective views showing different embodiments of the drive system. X... Drive system, 2... Draft part, 5
... Winding device, 7... Air jet nozzle,
10... Back roller, 13... Front roller, 36... Pulsar (length measuring means), 39.
...first computer device (pattern setting means),
48...Storage device (storage means), 54...Motor control device (control device) Patent applicant Howa Kogyo Co., Ltd. No.-Boseki Co., Ltd. @Figure 6gFigure PJ8

Claims (1)

[Scope of Claims] 1. The fiber bundle drafted in the drafting part is supplied to an air jet nozzle, a yarn is spun while imparting false twist to the fiber bundle within the air jet nozzle, and the yarn is spun by a winding device. In a yarn manufacturing device that is designed to be wound, a transmission device is provided in the drive system of the draft part to change the relative rotational speed of the back roller and the front roller, and the spinning length of the yarn can also be measured. further comprising a length measuring means, 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 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 length measurement means, and changes the count of the spun yarn so as to correspond to the set pattern. Special yarn manufacturing equipment featuring: 2. The back roller and the front roller are configured to be driven by one drive motor, a transmission is interposed in the drive system between the back roller and the front roller, and the transmission is connected to a differential gear and the differential gear. and a servo motor for speed change control.
The special yarn manufacturing device described in Section 1. 3. The drive system of the draft part is divided into a first drive system in which the first drive motor rotates the front roller and a second drive system in which the second drive motor rotates the back roller, and the speed of the second drive motor is changed. The special yarn manufacturing apparatus according to claim 1, characterized in that the special yarn manufacturing apparatus is provided with a function as a transmission device. 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 to the reference count;
The pattern setting means is constituted by a storage means for storing the input data, and an arithmetic means for calculating control data representing the ratio of the count variation for each reference unit length to the reference count based on the stored data. An apparatus for manufacturing special yarn according to claim 1, characterized in that: