JPH0236690B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a manufacturing apparatus for manufacturing variable yarns such as slub yarns and multi-count yarns by controlling the spinning conditions by a program.

(Prior Art) Examples of conventional technologies include Japanese Patent Laid-Open No. 119228/1982 and Japanese Patent Laid-Open No. 46127/1982.

(Problems to be Solved by the Invention) Conventional manufacturing equipment of this type only controls the spinning conditions of the slab portion.
There was a problem in that the operations for setting the manufacturing conditions of the entire yarn, ie, the spindle rotation speed, number of twists, draft ratio, etc., to desired conditions were complicated.

An object of the present invention is to provide a variable yarn manufacturing apparatus that can easily and accurately set the manufacturing conditions for spun yarn and easily spin variable yarns of various types.

(Means for Solving the Problems) The present invention provides a main motor whose rotation is controlled to rotationally drive a spindle based on a set spindle rotation speed inputted into a program controller, and a set twist number and speed inputted into a program controller. A front motor whose rotation is controlled to rotate the front roller under rotation conditions calculated based on spindle rotational speed data detected by a detector, a set draft ratio input into the program controller, and a front roller detected by a speed detector. In order to rotate the back crawler under rotation conditions calculated based on rotation speed data, the back motor is installed so that it can rotate synchronously with the back motor, which is controlled to rotate, and in the front roller drive system, the rotation of the front motor is transmitted to the front roller. The operation of the first yarn is controlled based on variable yarn characteristic conditions input to the program controller in order to temporarily stop the rotation transmission.
A variable yarn manufacturing device comprising a clutch and a second clutch whose operation is controlled based on the variable yarn characteristic conditions in order to decelerate the rotation of the front motor and transmit it to the front roller, or to stop the rotation transmission. The main points are as follows.

(Function) The device of the present invention is equipped with three control motors to individually control the rotation of the spindle, front roller, and back roller, and the program controller is used to set spinning conditions such as spindle rotation speed, number of twists, and draft ratio. Input the characteristic conditions of the variable yarn, set the main motor for driving the spindle, control the rotation based on the spindle rotation speed, set the front motor for driving the front roller, and set the number of twists.
The rotation of the spindle is controlled based on the detected spindle rotation speed data, and the rotation of the back motor for driving the back crawler is controlled based on the set draft ratio and the front roller rotation speed data that is detected. Furthermore, the operation of the first clutch and the second clutch provided in the drive system of the front roller is controlled based on the variable yarn characteristic conditions, so that variable yarns of various types can be spun.

(Example) Next, an example of the present invention will be described with reference to the drawings.

A synchronous motor type main motor 1 is installed to control the rotation of a spindle 3 via a main shaft 2, and an output signal is transmitted to the main inverter MI based on the set spindle rotation speed R input to the program controller PC. The inverter MI converts the output signal into a frequency for rotating the main motor 1 at a rotation speed corresponding to the set spindle rotation speed R, and sends the output signal to the main motor 1.
The main motor 1 is driven to rotate at a rotational speed corresponding to the input set spindle rotational speed R.

The rotation of the main motor 1 is transmitted via the main shaft 2 to a first speed detector 4 installed to detect the rotation speed K1 of the spindle 3, and the spindle rotation speed data K1 detected by the first speed detector 4 is transmitted. is fed back to the program controller PC.

Synchronous motor type front motor 5
is installed to rotate synchronously with the main motor 1 in order to rotationally drive the front roller 6, and a first electromagnetic clutch 9 is fitted in the drive system of the front motor 5, and meshes with a gear 10 fitted to the motor shaft. A first front shaft 7 to which the rotation of the front motor 5 is transmitted via a one-way clutch gear 11.
The second front shaft 15 is fitted with the second electromagnetic clutch 16, and the idler gear 13 meshed with the gear 20 of the first front shaft 7 and the operating gear 16a of the second electromagnetic clutch 16 is loosely fitted and the second front shaft 15 is fitted with the second electromagnetic clutch 16. A third front shaft 19 is arranged in parallel with the third front shaft 19, which rotates at a reduced speed from the first front shaft 7 by transmitting the rotation of the front shaft 15 through chain gears 17 and 18. and,
The rotation of the gear 20 fitted to the first front shaft 7 is normally caused by the intermediate gears 22, 22 and the gear 21 fitted to the front roller shaft 6a so that the intermediate gear 22 can engage and disengage. (normally, when spinning yarn, the front roller shaft 6a and the extension shaft 6b are connected by a coupling ring 6c), and furthermore, the operating gear 9a of the first electromagnetic clutch 9 is fitted. A gear 23 is fitted to the transmission shaft 8 which is rotated and butts against the first front shaft 7, and the rotation of this gear 23 is controlled by the intermediate gears 24, 2.
4 and the front roller shaft 6a via the gear 25.
transmitted to. Further, a second speed detector 12 for detecting the rotational speed of the front roller 8 includes a first
The rotation of the front shaft 7 is transmitted through a gear group,
Front roller 6 detected by second speed detector 12
The rotation speed data K2 is the program controller.
Feedback is sent to the PC.

Then, the set twist number T input into the program controller PC and the first speed detector 12 are
The rotation speed K2 of the front roller 8 is determined as T= based on the spindle rotation speed data K1 detected by
It is calculated from K1/K2 and the calculation result is transmitted to the front inverter FI, and the front inverter FI sets the frequency for rotating the front motor 5 so that the front roller 6 rotates at the rotation speed K2 corresponding to the set twist number T. The output signal is transmitted to the front motor 5, and the front roller 6 is driven to rotate under a rotation condition corresponding to the input twist number condition.

Synchronous motor type back motor 26
is installed to be able to rotate synchronously with the main motor 1 and the front motor 5 in order to rotationally control the back roller 27 and middle roller 28, and the rotation of the back motor 26 is controlled by the first motor through a one-way clutch gear 28 fitted to the motor shaft. The rotation of the second back shaft 30 is transmitted to the back roller shaft 27a and the middle roller shaft 28a through two gear trains.

Then, the set draft ratio D input into the program controller PC and the second speed detector 1
Based on the front roller rotation speed data K2 detected in step 2, the rotation speed K3 of the back roller 27 is D=
The calculation results are calculated from K2/K3 and transmitted to the back inverter BI, which converts it into a frequency for rotationally driving the back motor 26 so that the back crawler 27 rotates at the rotation speed K3 corresponding to the set draft ratio D. Then, the output signal is transmitted to the back motor 27, and the back roller 27 and middle roller 28 are driven to rotate under rotation conditions corresponding to the input draft condition D.

Further, variable yarn characteristic conditions S such as the yarn length of the ground yarn section Y, the type of the count variable section, and the yarn length of the count variable section are input to the program controller PC, and based on the variable yarn characteristic conditions S, the first electromagnetic Clutch 9
One or both of the second electromagnetic clutches 16 are controlled ON and OFF, and the yarn length data obtained by counting the number of revolutions K2 of the front roller 6 detected by the second speed detector 12 is sent to the program controller PC.
When the random number pitch (set yarn length of ground yarn section Y + random number) input and stored in the machine is reached, both electromagnetic clutches 9 and 16 are activated to set the variable yarn characteristic condition S.
A variable yarn corresponding to this is spun.

That is, when manufacturing multi-count yarn, when both the first and second electromagnetic clutches 9 and 16 are turned on, the gear 2 is transferred from the first front shaft 7.
0, the rotational speed is transmitted to the second front shaft 15 via the idler gear 13 and the operating gear 16a of the second electromagnetic clutch 16, and further transmitted to the third front shaft 19. Since the rotational speed is reduced compared to the rotation speed transmitted to the one-way clutch gear 14 via the operating gear 9a of the clutch 9, the one-way clutch gear 14 idles and the speed change shaft 8 is at the same speed as the first front shaft 7. The rotation of the first front shaft 7 is transmitted to the front roller 6 via gears 23, 24, and 25. Therefore, if one or both of the front motor 5 and the back motor 26 is controlled to change speed in this state, the front roller 6 and the back roller 2
It is possible to spin a different count portion H1 in which the draft ratio between 7 and 7 is decreased and the spinning count is varied, and the spindle rotational speed K1 is reduced in this different count portion H1.

In addition, when manufacturing short slub yarn, the first electromagnetic clutch 9 and the second electromagnetic clutch 1
6 are momentarily turned OFF, the rotation of the third front shaft 19 and the rotation of the speed change shaft 8 are stopped, so the rotation speed K2 of the front roller 6 temporarily becomes 0, and the thickness of the slab portion decreases. It is possible to spin out a short slab portion H2 that is relatively thick compared to the thickness of the ground yarn and has a relatively short slab length.

Furthermore, when manufacturing long slabs, the first
When the electromagnetic clutch 9 is turned OFF and the second electromagnetic clutch 16 is turned ON, the second front shaft 1 is transferred from the first front shaft 7 through the gear 20, the idler gear 13, and the operating gear 16a of the second electromagnetic clutch 16.
5 and further transmitted to the third front shaft 19 is transmitted to the operating gear 9a of the first electromagnetic clutch 9 via the one-way clutch gear 14, and the speed change shaft 8 is rotated at a reduced speed. 6 is decelerated, the draft ratio between the front roller 6 and the back roller 27 is temporarily reduced, and a long slab portion H3 having a relatively thin slab portion and a relatively long slab length is spun. be able to.

Next, the operation and effects of the embodiment having the above configuration will be explained.

In this example, the main motor 1, which is rotationally controlled to rotate the spindle 3 based on the set spindle rotation speed R input to the program controller PC, and the program controller
The set twist number T input into the PC and the spindle rotation speed data K1 detected by the first speed detector 4
The front motor 5 is rotationally controlled to rotationally drive the front roller 6 at a rotational speed K2 calculated based on the set draft ratio D input into the program controller PC and the front roller detected by the second speed detector 12. Rotation speed data
A back motor 26 which is rotationally controlled to rotate the back crawler 27 at a rotational speed K3 calculated based on K2 is provided so as to be able to rotate synchronously, and in the drive system of the front roller 6, there is a First and second electromagnetic clutches 9, 16 are provided whose operation is controlled based on variable yarn characteristic conditions S input into the program controller PC in order to temporarily change the draft ratio of the yarn.

Therefore, by inputting the set spindle rotation speed R, set twist number T, set draft ratio D, and variable yarn characteristic condition S into the program controller PC, for example, according to the flowchart shown in Fig. 4, the desired form can be obtained. Various types of variable yarns can be manufactured accurately under spinning conditions suitable for each type of yarn, and the spinning conditions for the ground yarn section Y and count variable section of the variable yarn can be easily set, simplifying the design process for variable yarns. It has a soothing effect.

In addition, since the spindle 3, front roller 6, and back roller 27 are each configured to be rotationally controlled by a control motor, design changes to spinning conditions can be simplified, and the combination of the form of the count variation section can be changed easily. Accordingly, it is possible to easily manufacture variable yarns in which the form of the count variable portion is varied in various ways.

In addition, the spindle rotation speed and front roller rotation speed are each detected, and the detected data is fed back to set the rotation conditions of the front roller and back roller, so the variable yarn can be spun according to the set conditions. The quality of the spun yarn can be stabilized.

(Effects of the Invention) That is, the present invention includes a main motor whose rotation is controlled to rotate the spindle based on a set spindle rotation speed inputted into a program controller, and a set twist number and speed detector inputted into the program controller. The rotation of the front motor is controlled to rotate the front roller under rotation conditions calculated based on the detected spindle rotation speed data, the draft ratio input into the program controller, and the front roller rotation speed data detected by the speed detector. In order to rotationally drive the back roller under the rotation conditions calculated based on the rotation conditions, a back motor whose rotation is controlled to rotate synchronously with the front roller is installed, and in the drive system of the front roller, the rotation of the front motor is transmitted to the front roller. A first clutch whose operation is controlled based on variable yarn characteristic conditions input to the program controller to temporarily stop the rotation transmission, and a first clutch that decelerates the rotation of the front motor and transmits it to the front roller, or By providing a second clutch whose operation is controlled based on the variable yarn characteristic conditions in order to stop the variable yarn, it is possible to diversify the forms of the variable yarn and easily spin variable yarns of various types. This has the effect of simplifying the number of steps required to design the spun yarn and design changes to the spinning conditions.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and Fig. 1 is a gearing diagram of the manufacturing device, Fig. 2 is a flowchart, Fig. 3 is a flowchart of a program, and Fig. 4 is a flowchart of variable yarn and spindle rotation. FIG. 4 is an explanatory diagram showing the correspondence between the number of rotations, the number of rotations of the front roller, and the number of rotations of the back roller. 1...Main motor, 3...Spindle, 5...
...Front motor, 6...Front roller, 4,
12... Speed detector, 6, 19... Electromagnetic clutch, 26... Back motor, 27... Back crawler, PC... Program controller, R... Set spindle rotation speed, T... Set number of twists, D... Setting Draft ratio, S...Fluctuating yarn characteristic conditions, K1...
Spindle rotation speed, K2...front roller rotation speed, K3...back roller rotation speed.

Claims (1)

[Claims] 1. A main motor whose rotation is controlled to rotationally drive a spindle based on a set spindle rotation speed input into a program controller;
A front motor whose rotation is controlled to rotate the front roller under rotation conditions calculated based on the set number of twists input into the program controller and spindle rotation speed data detected by a speed detector, and the setting draft input into the program controller. In order to rotationally drive the back roller under the rotation conditions calculated based on the front roller rotation speed data detected by the ratio and speed detector, a back motor that is rotationally controlled is installed so that it can rotate synchronously, and a motor is installed in the front roller drive system. The clutch includes a first clutch whose operation is controlled based on variable yarn characteristic conditions input to a program controller in order to transmit the rotation of the front motor to the front roller or to temporarily stop the rotation transmission; and a second clutch whose operation is controlled based on the variable yarn characteristic conditions in order to reduce the speed and transmit the rotation to the front roller, or to stop the transmission of the rotation.