JPS592135Y2 - Double twisting machine for spandex-filled core yarn - Google Patents

Description

[Detailed description of the invention] This invention modifies the conventional double twisting machine to draw out the gold thread made of spun yarn and spandex that has been stretched 2 to 5 times from the gold thread cheese while stretching it. The purpose is to double-twist the gold thread cheese by rotating it so as not to rub the surface of the gold thread with the gold thread, thereby producing high-quality spandex-containing core yarn at a high rate.

Conventional double-twisting machines are used to double-twist spun or synthetic filament yarns.

When using such a double twisting machine as is to produce core yarn by double twisting a doubled yarn consisting of spandex and spun yarn, the doubled yarn consisting of spandex and spun yarn that has been stretched 2 to 5 times is used. Since it is necessary to double-twist the yarn while stretching it, the gold thread pulled out from the gold thread cheese strongly rubs against the surface of the double-thread cheese, and due to its contraction force, the spandex passes through the shortest distance on the surface of the gold thread cheese, and the spun yarn is twisted. Separate from.

If there are parts where the spandex and spun yarn that make up the gold thread are twisted separately, there is a drawback that strong twist and weak twist parts occur, causing snarl to be mixed into the double-twisted thread. Ta.

This invention was made for the purpose of improving the above-mentioned conventional drawbacks, and is as follows.

That is, as shown in FIG. 1, in a double twisting machine, a bearing 3 is inserted into the lower part of the convex part 2 of the stationary pot 1, and a tube 4 screwed onto the convex part 2 and the upper part of the convex part 2 is inserted. The inserted gold thread cheese 5 is attached to the outer ring 3 of the bearing 3 mentioned above.
The stationary pot 1 is placed on an annular plate 6 fixed to the side plate 6, and a thread guide hole 8 is provided in the middle and upper part of the side plate 7 of the stationary pot 1, respectively.
.
This double-twisting machine for spandex-containing core yarn is characterized in that the gold thread cheese 5 is pulled out and double-twisted while being passively rotated.

Note that 14 is a guide, 15 is a take-up roller, 16 is a drive roller, 17 is a belt, and 18 and 18' are stationary pots 1.
The offshore spindle 11 is supported by a bearing installed inside the convex portion 2 of.

19 is a permanent magnet attached to the lower part of the side plate 7 of the stationary pot 1, and 20 is a permanent magnet attached to the frame, which is arranged close to the permanent magnet 19.

Since this invention is constructed as described above, it has the following functions and effects.

The doubling cheese 5 fitted into the protrusion 2 of the stationary pot 1 and the tube 4 is connected to the outer ring 3' of the bearing 3 inserted into the lower part of the protrusion 2.
Since it is placed on an annular plate 6 fixed to the
When the doubled yarn 9 made of spandex and spun yarn is pulled out from the doubling cheese 5 while being stretched, the doubled yarn 9 is pulled out from the yarn guide hole 8 in the middle part of the side plate 7, so that the doubled yarn cheese 5 is pulled out from the doubling cheese 5. Rotate extremely.

The yarn 9 pulled out from the thread guide hole 8 in the middle of the side plate 7 passes through the outside of this side plate 7 and passes through the thread guide hole 8 at the upper part of the side plate 7.
', and the tensor 1 inserted into the hollow part of the upper end of the convex part 2
0, passes through the hollow hole of this tube 4, the hollow hole of the hollow spindle 11, passes through the radial hole of the circular disk 12 attached to the lower part of this hollow spindle 11, and further passes through the circumferential groove of this circular disk 12. Thereafter, the yarn is double-twisted to form a balloon, passed through a Snell wire 14, and wound around the cheese 13 which is rotated by a winding roller 15.

The doubled yarn 9 made of spandex and spun yarn that has been stretched 2 to 5 times as described above is pulled out from the doubled yarn cheese 5 while being stretched, but the degree of elongation is maintained within a predetermined range. In order to rotate this gold thread cheese 5 passively, the viscosity of the oil and fat put into the bearing 3 is adjusted.

Moreover, the side plate 7 facing the middle of the height of this gold thread cheese 5
Since the yarn guide JL8 is provided at the position, the doubling yarn 9 drawn out while being stretched from the doubling cheese 5 passes through the aforementioned yarn guiding hole 8 while rotating the doubling cheese 5, and passes through the side plate 7. The yarn guide hole 8 is pulled out to the outer surface of the side plate 7 and
', and is drawn downward through a hollow hole in a tensor 11 made of a hollow tube.

Therefore, the doubling yarn 9 made of spandex and spun yarn does not rub the surface of the doubling cheese 5.

When double-twisting the gold thread made of spandex and spun yarn in a conventional double-twisting machine, two steps are required.
~The gold thread cheese made of spandex and spun yarn stretched five times is pulled out from the gold thread cheese without rotating, passes between the double thread cheese and the side plate, passes through the thread guide attached to the tensor, and then passes through the hollow hole of the tenser. As it is pulled out downward, this doubling thread is pulled out while rubbing the surface of the gold thread cheese very strongly.

When this gold thread is strongly rubbed against the surface of the gold thread cheese in this way, the spandex passes through the shortest distance on the surface of the gold thread cheese due to the tension, but since the spun thread is not stretched, the spandex and the spun thread are The gold thread cheese 5 is separated while its surface is rubbed.

Therefore, due to the change in tension when the separated spandex rubs against the surface of the doubling cheese 5, strong twist portions and weak twist portions are generated, resulting in the disadvantage that snarls occur partially in the produced double-twisted yarn. .

In order to produce a core yarn that is filled with spandex, when forming a double yarn cheese consisting of a spun yarn of spandex and spun yarn, the spun yarn is stretched 2 to 5 times while the spandex is stretched, but the spun yarn is not stretched, and the spun yarn is made into gold thread cheese. to form.

When producing spandex-containing core yarn by pulling out the doubling yarn from the doubling cheese formed in this way and double-twisting it, the double-twisting yarn is stretched approximately equal to the elongation rate of the gold thread when forming the gold thread cheese. do.

Therefore, when the spandex is stretched almost to the same extent as when the double cheese is formed, the spun yarn is double-twisted while being double-twisted with the spandex without loosening, so that a spandex-containing core yarn that is evenly heated is produced.

This invention is based on the above-mentioned theory and is capable of double-twisting, and has the remarkable effect of producing a core yarn with good quality spandex.

In addition, in the conventional double twisting machine, the doubled yarn 9 is passed through the hollow hole of the tenser through the thread guides attached to the tips of the arms at both ends of the tenser, which is inserted into the upper end of the hollow part at the upper end of the convex part 2. Therefore, due to the friction of this thread guide part, the twist density of the spun yarn heated around the outer periphery of the spandex fluctuates, which causes large and small fluctuations in the coil radius of the cotton yarn that forms the outer periphery of the double-twisted spandex. However, since the tensor 10 of this invention removes the thread guides at both ends of the conventional tensor and becomes a simple hollow tube 1, it has the advantage that the above-mentioned drawbacks do not occur.

[Brief explanation of drawings]

FIG. 1 is a side view showing an outline of this invention, with a portion showing a longitudinal section. -1... Stationary pot, 2... Protrusion,
3... Bearing, 3'... Outer ring of bearing, 4... Tube, 5... Doubling bobbin, 6... Circle Annular plate, 7... Side plate, 8, 8'... Yarn guide hole, 9... Doubling yarn, 10... Tenser, 11...・Hollow spin

Claims (1)

[Scope of utility model registration request] In the double twisting machine, a bearing 3 is inserted into the lower part of the convex part 2 of the stationary pot 1, and the gold thread cheese 5 is inserted between the convex part 2 and the tube 4 screwed onto the upper part of the convex part 2. It is placed on an annular plate 6 fixed to the outer ring 3' of the bearing 3, and thread guide holes 8, 8' are provided in the middle and upper part of the side plate 7 of the stationary pot 1, respectively. The tensor 10 made of A double twisting machine for spandex-containing core yarn, which is characterized by double drawer twisting.