JPS6023063B2 - How to thread the spindle winder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of threading a thread onto a spindle winder, and more particularly, to a method of threading a thread onto a spindle winder in which the winding tension is kept constant using a tension convenser arm.

Conventionally, while a spindle is rotated by a torque motor, the tension of the winding yarn is controlled by engaging the winding yarn with the free end of a tension convencator arm that controls the torque motor. When threading a spindle winder with
As described in Japanese Patent No. 27, there has been proposed a device for threading by supporting a tension convencator arm in a balanced position so that the spindle rotates at a speed commensurate with the length of the winding thread.

However, in such a device, if the yarn is made to meander between a large number of freely rotating rollers, and the yarn is taken up by a suction gun or the like and then threaded onto the spindle, the yarn is threaded between the rollers. The resistance is large and it is difficult to remove the yarn due to the suction odor, especially when the yarn is 2,000 skins/mi.
If the speed is higher than n, implementation is impossible. Mata Tokko Sho 4
As shown in Figure 3 of Publication No. 8-31178, when threading is carried out by moving the tension convencator arm to a position where the thread does not meander, there is little resistance, so even at high speeds, the thread cannot be threaded with a suction gun, etc. The thread can be easily guided to the spindle, but in this state, the spindle is either stopped or not at a constant speed that is synchronized with the thread speed of the winding thread, so the thread is threaded onto the spindle at the same time. It is impossible to thread it because it becomes loose or breaks.

The inventors of the present invention have made extensive studies in view of the above points, and have discovered that threading can be easily carried out by incorporating an initial speed setting device into the spindle winder in conjunction with the rotation of the tension convencator arm, and have arrived at the present invention. This is what I did.

That is, the present invention rotates the spindle from the outside of the torque motor, and uses a plurality of freely rotating rollers A provided on a tension convencator arm that controls the torque motor, and a plurality of freely rotating rollers A provided separately from the arm. The yarn is run in a meandering manner between a fixed freely rotating roller B,
When threading the yarn onto a spindle winder that controls the yarn tension by swinging the tension convencator arm, the yarn does not meander through the tension convencator arm between the rollers A and B. , the arm is rotated to the inoperative position, and an initial speed setting device built into the spindle winder, which operates in conjunction with the rotation of the tension convencator arm to the inoperative position, turns the spindle. rotate at a constant speed,
Threading is carried out, and then the tension convencator arm is rotated so that the yarn meanders between the rollers A and B and the arm is rotated to the operating position, and the initial speed setting device is activated. This is a method of threading a spindle winder, which is characterized by cutting the thread.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a front view of a spindle winder according to an embodiment of the present invention. FIG. 2 is a partial schematic view of FIG.
In the figure, 1 is a yarn, 2 is a tension convencator arm, 3 to 8 are freely rotating rollers A provided on arm 2, and 9 to 14 are rollers fixed between the yarn sending side and the spindle. Freely rotating roller B provided 15 is a sliding bale, 16 is a traverse, 87 is a spindle, 18 is a bobbin, 19 is a support shaft, 20' is a shaft, 211 is a bar, 2.2 is a limit switch, 23 is another Lever 24 is an automatic control device; 25 is an initial speed setting device.

Hereinafter, referring to FIG. 1, a plurality of freely rotating rollers 3, 4, 5, 6, 7 provided on the tension convencator arm 2 and a roller fixed separately from the arm are shown. A plurality of freely rotating rollers 9, 10,
11, 12, Tortoise 39 Meandering between Tortoise 4, sliding veil Tortoise 5 to Traverse Tortoise 6, and spindle 1
It is wound onto a bobbin q8 with a hole attached.

The speed of the spindle 17 is determined by detecting the change in position due to the swinging of the tension convenctor arm 2 as a voltage value from a differential transformer 241 via a lever 23 shown in FIG. 2, and increasing or decreasing the input voltage to the torque motor. controlled. A plurality of freely rotating rollers 3 to 4
As the yarn 1 is run in a meandering manner, the running tension of yarn 1 increases due to its resistance. It becomes difficult to hang.

For this reason, it is not common practice to cause the yarn to meander between a large number of freely rotating rollers; usually one or two freely rotating rollers are used.

However, for example, in a turret type spindle winding machine having two spindles 7 and 7', the full bobbin 18 and the empty bobbin 8' are exchanged at high speed, and the yarn fleas are transferred from the full bobbin 18 to the empty bobbin. In order to absorb the slack in the yarn 1 that occurs when it is transferred to the hook 8', it is essential to run it in a meandering manner between a large number of freely rotating rollers as described above. This problem is particularly problematic in the evening-leaf type winder, in which the yarn is wound in a meandering manner between a number of freely rotating rollers. In order to solve the above-mentioned problems, the present invention moves the compensator arm 2 from the normal swing control position C to a fixed free-rotating roller as indicated by the arrow and dotted line D. 98 10, 18, 1 public 13, Shift the wing 4 to the upper side and hold it in that position with the support 9. This will cause the shaft 20 of the fulcrum of the compensator arm 2 to move as shown in FIG.
Rotate the provided lever 21 in the direction of the arrow to activate the IJ limit switch 22. At the same time, the control of the automatic control device 24 that controls the speed of the torque motor is cut off in conjunction with the swinging of the arm 2. The initial speed setting device 25 shown in FIG. 1, which is provided separately, is operated by a switch 22 to timely set the spindle rotational speed according to the yarn speed and rotate it to thread the yarn.

In this way, the yarn 1 can be guided to the spindle 17 or 17' with a suction gun or the like without being caused to meander through the freely rotating rollers, and the spindle 17 or turtle T' can be controlled at a constant speed according to the yarn distance by the initial speed setting device 25. Since it is rotating at a high speed, leave arm 2 in position D and move spindle 17 or 17.
You can thread the thread without it slackening or breaking.

Thereafter, by lowering the arm 2 and turning off the limit switch 22 in conjunction with this, the automatic control device 24 controls the torque motor from the initial speed setting device 25 in conjunction with the swinging of the arm 2. Switch to and enter steady operation.

By providing two control devices 24 and 25 in this manner and using them selectively in conjunction with the movement of the compensator arm, stable threading at high speeds has become possible for the first time. As for the plurality of freely rotating rollers provided in the compensator arm used in the present invention, it is preferable that there be at least 6 or more preferably 8 or more rollers for winding from above to absorb the slack of the yarn during turret operation at high speed. The higher the speed, the greater the number of free rotating rollers.

There are various methods for the initial speed setting device 25, but one example is a method in which the output of a tachogenerator built in a torque motor is rectified and then fed back, and the output is adjusted by a variable resistor to adjust the amount of feedback to obtain a desired rotation speed. Good too.

As described above, according to the present invention, it becomes extremely easy to thread thread onto a spindle winder, which greatly contributes to improving workability and productivity.

[Brief explanation of drawings]

FIG. 1 is a front view of a spindle winder according to an embodiment of the present invention, and FIG. 2 is a partial schematic diagram of FIG. 1. 2: Tension convencator arm, 3-8: Free-rotating roller, 9-14: Fixed free-rotating roller, 17
, 17': Spindle, 25: Initial speed setting device. Outer drawing box

Claims (1)

[Claims] 1. A plurality of free rotation rollers A provided on a tension compensator arm that rotates the spindle by a torque motor and controls the torque motor, and a plurality of fixed free rotation rollers provided separately from the arm. When threading the yarn onto the spindle winder, which runs the yarn in a meandering manner between the tension compensator arm and the tension compensator arm, the tension of the yarn is controlled by swinging the tension compensator arm. The roller A and the roller B do not run in a meandering manner, and the arm is rotated to a non-operating position, and (b) the tension compensator arm is operated in conjunction with the rotation of the tension compensator arm to the non-operating position. The initial speed setting device built into the spindle winder rotates the spindle at a constant rotational speed to thread the yarn, and (c) the tension compensator arm is then moved so that the yarn meanderes between the rollers A and B. A method for threading a thread on a spindle winder, which comprises moving the arm, rotating the arm to an operating position, and cutting off the operation of an initial speed setting device.