JP3317254B2 - Quadruple twisting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a quadruple twist while each of an inner rotating body and an outer rotating body makes one rotation until a yarn unwound from a yarn supply package reaches a center guide on an outlet side. The present invention relates to improvement of a quadruple twisting machine.

[0002]

2. Description of the Related Art Conventionally, a quadruple twisting machine is disclosed in
Some examples are described in Japanese Patent Application Laid-Open No. 37728 and Japanese Patent Application Laid-Open No. 10-245727. As shown in FIG. 6, the quadruple twisting machine 1 rotates a package support 2 that supports the yarn supply package P in a stationary state on a longitudinal center line and a yarn Y unwound from the yarn supply package P inside. An inner rotating body 3 having a bottom and no lid is provided, and an outer rotating body 4 having a bottom and no lid for rotating the yarn Y inside. The yarn Y unwound from the yarn supply package P is guided by the fryer 5 onto the inner surface of the rotating inner rotator 3, and rotates after passing over the inner surface of the inner rotator 3. The balloon B is formed on the inner surface of the outer rotator 4 after reaching the inner surface of the outer rotator 4 and guided to the center guide 6.

[0003]

SUMMARY OF THE INVENTION A quadruple twisting machine has a yarn Y
It is required to obtain a high-quality twisted yarn by reducing the tension and to reduce the power consumption of a motor for rotating the rotating body at a high speed to reduce the cost of twisted yarn production. The inventor has found out the following by repeating a number of experiments to respond to this request. That is, in order to reduce the tension of the yarn Y, it is necessary to reduce the fluctuation of the yarn tension on the upstream side of the balloon so that the balloon tension can be reduced.
In order to reduce the power consumption of the motor, it is necessary to reduce the surface area of the rotating body to reduce windage loss. Therefore,
The present invention can reduce the balloon tension as compared with the conventional quadruple twisting machine 1 in order to meet the above demand,
An object of the present invention is to provide a quadruple twisting machine in which the surface area of a rotating body is reduced.

[0004]

In order to reduce the balloon tension and reduce the surface area of the rotating body, the means adopted by the present invention according to the first aspect of the present invention is to stop the yarn supplying package on the vertical center line. A four-layered body including a package supporter for supporting the yarn unwound from the yarn supply package, an inner rotating body without a bottom that rotates the yarn unwound from the yarn supply package, and an outer rotating body without a bottom that rotates the yarn outward. In the heavy twisting machine,
The outer rotating body includes a truncated conical portion that is erected upward from a peripheral edge of a bottom portion of the outer rotating body to a height near the bottom portion of the inner rotating body, and the thread to be turned outward is cut. A quadruple twisting machine characterized in that it passes on the outer surface of a frustoconical portion.

According to the first aspect of the present invention, an outer rotating body that guides a yarn unwound from a yarn supply package to the inside of a rotating inner rotating body and rotates a yarn that passes through the inside of the inner rotating body. To the outer surface of the frusto-conical part of the outer rotating body, discharge the yarn passing through the outer surface of the frusto-conical part from the frusto-conical part, and discharge the released yarn to the center guide on the outlet side. Can be formed and guided. The outer thread of the outer rotating body moves while being wound around the outer peripheral surface of the short frustoconical portion from the lower small diameter portion to the upper large diameter portion so as to form an appropriate delay angle portion. Since it is discharged from the diameter portion, the fluctuation of the tension is small. As a result, according to the present invention, it is possible to reduce the balloon height and the balloon tension. Further, in the present invention, since the height of the frusto-conical portion of the outer rotating body is low, the windage of the outer rotating body can be reduced and the power consumption of the motor can be reduced.

In order to stabilize the stationary state of the package support, a means adopted by the present invention is to move the outer rotating body from a height position of a pair of magnetic couplings for stationary the package support. Claim 1 arranged below
It is a quadruple twisting machine as described. According to the present invention, the magnetic force does not decrease because the outer rotating body does not move through the portion where the magnetic force of the pair of magnetic couplings passes, and the package support can be stably stopped with a strong magnetic force.

[0007] The means adopted by the present invention according to the third aspect of the present invention is arranged so that the delay angle portion of the yarn formed on the outer peripheral surface of the truncated conical portion of the outer rotating body can be observed. 3. The quadruple twisting machine according to claim 1, wherein the yarn passing on the outer surface of the truncated conical portion is arranged so as to be observable from the outside. In the present invention, since the delay angle portion of the yarn formed on the outer rotating body can be observed, setting of the unwinding tension becomes easy.

In order to prevent the magnetic coupling from hindering the passage of the yarn, the means adopted by the present invention according to the present invention comprises a pair of magnetic couplings for transmitting a rotational driving force to the inner rotating body. 2. The device according to claim 1, wherein the outer rotating body is opposed to the outer rotating body via a bottom portion forming a radial yarn path.
4. The quadruple twisting machine according to 2 or 3. In the present invention,
Since the yarn passes through the yarn path at the bottom of the outer rotating body, there is no contact between the pair of magnet coupling and the yarn.

In order to smoothly rotate the inner rotating body, the means adopted by the present invention according to the present invention is arranged such that the magnetic force of a pair of magnet couplings transmitting a rotational driving force to the inner rotating body passes through the outer rotating body. Part or all of the bottom part of the rotating body,
5. The quadruple twisting machine according to claim 4, wherein the machine is formed of a synthetic resin that does not attenuate magnetic force. In the present invention, since a part or the entirety of the portion through which the magnetic force of the pair of magnetic couplings passes is formed of a synthetic resin that does not attenuate the magnetic force, sufficient rotational driving to rotate the inner rotating body is performed. Force can be transmitted via a pair of magnetic couplings.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a quadruple twisting machine according to the present invention (hereinafter referred to as "the twisting machine of the present invention") will be described based on an embodiment shown in the drawings.

(First Embodiment) FIGS. 1 to 4 show a first embodiment of a twisting machine according to the present invention. FIG. 1 is a front view schematically showing the entire operation state. FIG. 2 is an enlarged front view of the lower half of the operating state, FIG. 3 is a front view of the upper half of the operating state enlarged, and FIG. 4 shows only the outer rotating body. FIG. 1A is a front view in section along the line aa in FIG. 1B, and FIG. 1B is a bottom view.

The twisting machine 11 according to the present invention, as shown in FIG.
A package support 12 that supports the yarn supply package P in a stationary state on the vertical center line L, a fryer 15 that guides the yarn Y unwound from the yarn supply package P, and a yarn Y guided by the fryer 15 is turned inside. A closed bottomed inner rotating body 13 to be rotated, a rotating shaft 17 formed with a yarn path Rb for guiding the yarn Y exiting from the inner rotating body 13, and a closed bottomed opener for rotating the yarn Y coming out of the rotating shaft 17 outside. It has an outer rotating body 14 and a center guide 16 that takes out the yarn Y that has formed the balloon B from the outer rotating body 14. The rotating shaft 17 is rotatably supported by a bearing portion 19 attached to a fixed portion 18 and has a driving pulley 20 attached near the lower end thereof. To be rotationally driven. The rotating shaft 17 rotatably supports the inner rotating body 13 at an upper position, and rotatably supports 25 a driving pulley 22 at an intermediate position.

The package support 12 includes the inner rotating body 1.
3 supported rotatably on a central shaft 31 erected at the center of the inside 2
3 has been done. The package support 12 has a flyer 15 rotatably supported at its upper end. The package supporting body 12 is provided with a bottomed, open-bottomed cylinder 34 (see FIG. 2) as required. A plurality of sets of a pair of magnetic couplings 27 for stopping the package support 12 are provided between the package support 12 and the outer fixing portion 18. Each set of magnetic couplings 27 is a magnet 2 attached to the outer peripheral edge of the bottom 12a of the package support 12.
7a and a fixed magnet 27b attached to the fixing portion 18, and the magnets 27a and 27b are attracted by the magnetic force generated between the magnets 27a and 27b.

The inner rotating body 13 is connected to a bearing portion 28 rotatably supported by a center rotating shaft 17 and a portion through which the magnetic force of the magnet coupling 27 does not attenuate the magnetic force. Molded with resin. The inner rotating body 13 houses the package support body 12 inside thereof and forms a package housing space S for housing the package P. Inner rotating body 1
A plurality of sets of a pair of magnet couplings 29 for transmitting a driving force to the inner rotating body 13 are provided between the third bearing portion 28 and the driving pulley 22. The magnetic coupling 29 is a magnet 29 attached to the bearing 28.
a, and a magnet 29b attached to the driving pulley 22. The driving force received from the belt 30 stretched over the driving pulley 22 is applied to the inner rotating body 13 by the magnetic force generated between the magnets 29a and 29b. To rotate the inner rotating body 13 in the direction of arrow D. Magnetic coupling 2
Reference numeral 9 designates both magnets 29a and 29b as the bottom plate 1 of the outer rotating body 14.
4a, they are arranged opposite to each other so as not to hinder the passage of the yarn Y.

The outer rotating body 14 is connected to a rotating shaft 17 and has a truncated upwardly open truncated upright extending from the periphery of the bottom portion 14a to a height near the bottom portion 13a of the inner rotating member 13. A conical portion 14b is formed so that the yarn Y turning outward passes on the outer surface 14c of the truncated conical portion 14b. The height position of the inner rotating body 13 in the vicinity of the bottom 13a is defined as a position below the bottom 13a and an upper position higher than the bottom 13a by about 5 to 20% of the height of the inner rotating body 13. Say the position between. As the shape of the outer side surface 14c in the meridian direction, an appropriate shape such as a curved shape or a straight shape (not shown) depressed inward is selected according to conditions such as the tension of the yarn Y. The outer rotating body 14 is the package support 12
Is arranged to be lower than the height position of the magnetic coupling 27 for stopping the magnetic coupling 27 so that the magnetic coupling 27 does not move in the portion where the magnetic force passes.

In the outer rotating body 14, a part or the whole of the bottom portion 14a through which the magnetic force of the magnetic coupling 29 passes is formed of a synthetic resin which does not attenuate the magnetic force. For example, as shown in FIG. 4, the outer rotating body 14 is formed by integrally connecting a boss portion 14a-1 of the bottom portion 14a and a frusto-conical portion 14b with a rib 14a-2 and using a metal material such as aluminum. In this case, the space 14a-3 having no rib 14a-2 is filled with the synthetic resin to reinforce the space. Although not shown, when connecting the boss portion 14a-1 of the bottom portion 14a and the truncated conical portion 14b with a separate disk, the outer rotary member 14 is formed of the above-mentioned synthetic resin. As described above, the outer rotator 14 is formed with a part or all of the magnetic coupling 29 through which the magnetic force passes by using the above-mentioned synthetic resin, so that the rotational driving force sufficient to rotate the inner rotator 13 is obtained. Can be transmitted through the magnetic coupling 29.

The outer rotating body 14 is, as shown in FIG.
By arranging the yarn Y passing on the outer surface 14c of the truncated conical portion 14b so as to be observable from the outside, the delay angle Ya of the yarn Y formed on the outer peripheral surface 14c of the truncated conical portion 14b can be reduced. It is made available for observation. The operator can easily set the unwinding tension by adjusting the not-shown tensor by observing the delay angle portion Ya of the yarn Y.

A thread path R for guiding the thread Y is formed in the inner rotating body 13, the rotating shaft 17, and the outer rotating body 14. As shown in FIG. 2, the yarn path Ra of the inner rotating body 13 includes a yarn path Ra-1 formed in the radial direction of the bottom portion 13 a and a yarn path Ra that is disposed at the lower end of the central shaft portion 31 and changes direction at a right angle.
-2. The yarn path Rb of the rotating shaft 17 is composed of a vertical yarn path Rb-1 drilled upward and a yarn path Rb-2 for changing the direction at a right angle. The yarn path Rc of the outer rotating body 14 is bored in the boss 14a-1 and the rib 14a-2 in the radial direction.

The rotary shaft 17 has an air passage 17a formed in the center of the lower half. The air passage 17a has a lower end connected to a rotary joint 33 for supplying compressed air, and an upper end opened to the yarn path Rc of the outer rotating body 14. The compressed air supplied through the rotary joint 33 blows out to the yarn path Rc to generate suction pressure on the upstream side of the yarn path R, and sucks the yarn end supplied to the bottom of the inner rotating body 13 into the yarn path R. At the same time, the yarn is discharged to the outside of the outer rotating body 14 so that the yarn is passed through the passage R automatically.

Next, the operation of the twisting machine 11 of the present invention will be described. As shown in FIG. 1, the yarn Y unwound from the yarn supply package P is guided on the inner surface of the inner rotating body 13 which is guided and rotated by the fryer 15, and is lowered on the inner surface of the inner rotating body 13. To the outer rotating body 1 after passing through the yarn path R.
4 reaches the lower end of the outer surface 14c. The yarn on the outer surface 14c of the outer rotating body 14 moves in a state of being wound from the small diameter portion below the outer surface 14c to the large diameter portion above so as to form an appropriate delay angle portion Ya, and has a peripheral speed. It is released from the large-diameter part that is fast. The yarn Y released from the outer side surface 14c of the outer rotating body 14 is drawn by the outlet side center guide 16 while forming the balloon B. In the twisting machine 11 of the present invention, the yarn Y on the outer surface 14c of the outer rotating body 14 moves while forming an appropriate delay angle portion Ya and is discharged from the large diameter portion.
Fluctuations in tension can be reduced. As a result, the twisting machine 11 of the present invention can reduce the height H of the balloon B to reduce the balloon tension. Furthermore, the twisting machine 11 of the present invention reduces the height of the frusto-conical portion 14b of the outer rotating body 14 to reduce the surface area, thereby reducing the windage of the outer rotating body 14 and driving the belt 21. Power consumption can be reduced.

(Second Embodiment) FIG. 5 shows a second embodiment of the twisting machine of the present invention, and is an enlarged front view showing a lower half of an operating state.

The twisting machine 41 according to the present embodiment differs greatly from the twisting machine 11 according to the first embodiment in the mounting position of the magnetic coupling 29 and the bearing portion 28. A frusto-conical part 28a extending from the drive pulley 22, a frusto-conical part 22a extending from the driving pulley 22, and magnets 29a, 29b of a magnet coupling 29 are attached. It passes through outside. The outer rotating body 14 has a magnet 29
Since the magnetic forces a and 29b do not pass, it is possible to form the whole with a metal material.

In order to confirm that the twisting machine yarn of the present invention can reduce the fluctuation of the yarn tension and reduce the balloon tension and the power consumption of the motor, the present inventor has shown in FIG. The twisting machine yarn 11 of the present invention according to one embodiment and the conventional quadruple twisting machine 1 shown in FIG.
Was performed, and the following results were obtained. (Test conditions) The following conditions were the same for the twister yarn 11 of the present invention and the conventional quadruple twister 1. The rotating speed of the inner rotating body is 3500 rpm. The rotating speed of the outer rotating body is 6500 rpm. The yarn is cotton Ne30x3. The twist is 1000 Twist / m. (Result of the test) The fluctuation of the balloon tension of the yarn (the tension at the upper part of the center guide 16 or 6) Range: 101-107 g of the twisting machine yarn 11 of the present invention-78-111 g of the conventional quadruple twisting machine 1 Motor power consumption-96 W of the inner rotating body and 170 W of the outer rotating body of the twisting machine yarn 11 of the present invention are total. The conventional quadruple twisting machine 1 has an inner rotating body of 150 W, an outer rotating body of 318 W, and a total of 468 W.

[0024]

According to the first aspect of the present invention, since the outer rotating body is provided with a short frustoconical portion, the balloon tension can be reduced, and the power consumption of the motor for driving the outer rotating body is reduced. By reducing the number of threads, it becomes possible to meet the demands required for a quadruple twisting machine. In the twisting machine according to the second aspect of the present invention, the package support can be stably stopped with a strong magnetic force, so that a smooth operation can be ensured.

According to the third aspect of the present invention, the unwinding tension can be easily set by observing the delay angle of the yarn formed on the outer rotating body so that a high-quality twisted yarn can be obtained. Become. In the twisting machine according to the fourth aspect of the present invention, a pair of magnet couplings for transmitting the rotational driving force to the inner rotating body do not hinder the passage of the yarn, so that a stable operation can be secured. In the twisting machine according to the fifth aspect of the present invention, a rotational driving force sufficient to rotate the inner rotating body can be transmitted through the pair of magnet couplings, so that stable operation can be ensured. .

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the twisting machine of the present invention, and FIG. 1 is a front view schematically showing an entire operation state;

FIG. 2 is an enlarged front view showing a lower half of an operating state in the embodiment.

FIG. 3 is a front view showing a cross section of an upper half portion of the operating state in the embodiment.

FIGS. 4A and 4B show only the outer rotating body in the embodiment, and FIG. 4A is a front view taken along the line aa of FIG. 4B, and FIG. is there.

FIG. 5 shows a second embodiment of the twisting machine of the present invention, and is an enlarged front view showing a lower half portion of an operating state in an enlarged cross section.

FIG. 6 is a front view showing a cross section of a conventional quadruple twisting machine.

[Explanation of symbols]

12 ... Package support, 13 ... Inner rotating body, 13a ... Bottom part, 14 ... Outer rotating body, 14a ... Bottom part, 14b ... Frustoconical part, 14c ... Outside surface, 27 ... Magnet coupling, 29 ... Magnetic coupling, L ... vertical center line,
P: Yarn supply package, Y: Yarn

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) D01H 7/86

Claims (5)

(57) [Claims] 1. A package support for supporting a yarn supply package in a stationary state on a longitudinal center line, an inner rotating body without a bottom that rotates a yarn unwound from the yarn supply package inward, and an outer rotation of the yarn. In the quadruple twisting machine provided with a bottomed open-ended outer rotating body that is swiveled, the outer rotating body extends upward from a peripheral edge of the bottom plate portion to a height position near a bottom plate portion of the inner rotating body. A quadruple twisting machine comprising an open frusto-conical portion, wherein the outwardly turning yarn passes over the outer surface of the frusto-conical portion. 2. The quadruple twisting machine according to claim 1, wherein the outer rotating body is disposed below a height of a pair of magnetic couplings for stopping the package support. 3. The quadruple twisting machine according to claim 1, wherein the outer rotating body is arranged so that a yarn passing on an outer surface of the frustoconical portion can be observed from outside. 4. A pair of magnetic couplings for transmitting a rotational driving force to said inner rotating body are arranged to face each other via a bottom portion forming a radial yarn path of said outer rotating body. Or the quadruple twisting machine according to 3. 5. A part or the whole of a bottom portion of said outer rotating body through which a magnetic force of a pair of magnet couplings for transmitting a rotational driving force to said inner rotating body is formed of a synthetic resin which does not attenuate magnetic force. The quadruple twisting machine according to claim 4.