JP2000110037A - Composite yarn feeder twister - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite yarn feeder twister capable of doubling plural multifilament yarns delivered from plural packages with or without twisting each yarn and twisting the doubled yarn. SOLUTION: Plural subsidiary spindles 3 rotating on its own axis and revolving around a main spindle 1 are supported on a frame 4 supported by the main spindle 1. The yarn Y reeled from the outer circumference of the package 7 on each subsidiary spindle 3 is wound on plural rotary guide rolls 5d placed on a basket 5 covering the outer circumference of a package (a), turned with a traverse supporting roll 10 placed on the outer circumference of the basket 5 and directed in the axial direction of the basket 5. When the yarn is delivered through a turning roll 11 and a roll 15 in front of the subsidiary spindle 3, the yarns Y are doubled with a doubling roll 24 placed at the front end of the main spindle 1 with or without twisting each yarn and the doubled yarn is twisted with a delivery roll 27 supported by the machine frame 2 during the delivery through the delivery roll 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of twisting a filament yarn unwound by a wefting method from a plurality of yarn supply packages wound with a multifilament yarn for a fixed number of times.
In addition, the present invention relates to a composite twisting yarn feeder that twists a plurality of twisted yarns and further twists.

[0002]

2. Description of the Related Art As shown in FIG. 5, a multifilament yarn Y drawn from the outer periphery of a package a is rotated by a plurality of rotation guide rolls c provided in a basket b covering the outer periphery of the package a.
On the surface of the package a, the yarn Y is turned in the direction substantially equal to the twill angle of the package on the surface of the package a by being turned by the traverse fulcrum roll d and pulled out in the axial direction of the basket b. The yarn Y is prevented from being damaged due to skidding on the surface of the package a, and the yarn Y unwound from the package a is kept twisted by maintaining a constant ratio between the drawing speed of the yarn Y and the rotation speed of the basket b. The twisted yarn Y has a constant number of twists per unit length. Even if tension is applied to the yarn Y, the twist moves, that is, it does not roll over and exhibits extremely stable mechanical properties. Untwisting of the processed yarn when it is an intermediate process (return the twist of the yarn and return to the original state)
Is extremely easy, and the number of twists given to the yarn does not change depending on the diameter of the package a, and there is known a yarn twisting device for supplying a twisted yarn with an accurate twist. 63149).

[0003]

However, in this apparatus, a plurality of packages a and a number of baskets b corresponding to the number of the packages a are provided on a spindle e for supporting and rotating the baskets b. A plurality of yarns Y are combined while heading toward the roll f provided at the axial position of the roll d and the spindle e, and the portion drawn from the roll f can only be twisted in a so-called twist. Further, in the case of applying a composite twist, it is necessary to form a plurality of packages a which have been individually twisted once, set a plurality of packages a, and twist the packages a, which complicates the process. The present invention provides a composite twisted yarn feeder which can take out the plied yarn Y in a state of being twisted and can simultaneously lay a composite twist in which the twisted yarns Y are twisted. Make it an issue.

[0004]

According to a first aspect of the present invention, a main spindle is supported by a machine base and is supported by a frame supported by the main spindle to revolve around the main spindle. A plurality of sub-spindles that rotate while rotating are provided, a package is rotatably supported on each sub-spindle, and a cylindrical cage having a plurality of rotation guide rolls parallel to the axis on the periphery is formed so as to cover the outer periphery thereof. A brake is provided so as to rotate integrally with the spindle, a brake is provided between the basket and the package to control the relative rotation of the two, and the basket is pulled out of the package on the outer surface of the basket and wound around the rotation guide roll to surround the basket. A traverse fulcrum roll for guiding the yarn along the circumferential direction to the front of the basket by turning the yarn in the axial direction and further turning the guiding yarn forward along the axis of the spindle; Is provided on the front surface of the basket, and a combining thread roll for combining the yarns passing through the turning rollers of the basket is provided at the front end of the main spindle, and the combined yarn Y is led out to the front position of the combining thread roll. The take-out roll is provided to be supported by the machine base, and each of the sub-spindles is interlocked with a separate speed-change drive source so as to include a rotation region that does not rotate during rotation of the main spindle. By selecting the rotation speed of each sub-spindle and selecting a state in which each sub-spindle does not rotate during the rotation of the main spindle, the yarn drawn from each package will not be twisted, and will be twisted only after it has been twined by the twin yarn roll. Is applied. That is, it can be twisted. On the other hand, when the rotational speed of each speed change drive source is changed, and while the main spindle is rotating, each sub-spindle is rotated and the yarn is drawn from each package, the yarn drawn from each package is twisted,
The twisted yarn is further twisted after being twisted through a twinning roll, that is, a composite twist can be selectively applied.

According to a second aspect of the present invention, there is provided a drive side in which a main spindle is interlocked with one speed change drive source via a timing belt, and a sub spindle group is rotatably supported on a main spindle shaft. A timing belt is stretched between the toothed pulley and the driven-side toothed pulley provided on each sub spindle, and the driving-side toothed pulley is interlocked with the other transmission drive source via the timing belt, so that By selecting the number of rotations of the driving source, each sub-spindle rotates in the same direction as the main spindle at a rotation speed that matches the rotation ratio between the driving-side toothed pulley and the driven-side toothed pulley during one rotation of the main spindle. By providing a region for rotation, only by selecting the number of rotations of both speed change drive sources, a state where the yarn pulled out from each package described above and untwisted before being twisted is drawn without twisting, And easy to select and to be pulled by applying twists to the yarn prior to doubling withdrawn from the cage, can hang and twist complexed with said iodine twist.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the attached drawings. In the drawing, reference numeral 1 denotes a bearing 2a provided at the front end of the machine frame 2 and two bearings 2 provided at the rear end of the machine frame 2.
The main spindle 3, which is rotatably provided with both ends supported by b and 2b, is supported by a support frame 4 provided at an intermediate position of the main spindle 1 so as to rotate integrally therewith, and the main spindle 2 is supported. 2 shows a plurality of sub-spindles revolving around the center while rotating.

A plate-like holding holder plate 8 for holding a package 7 is provided on the outer periphery of each sub spindle 3 via a bearing case 6 for holding a ball bearing 6a.
And a basket 5 surrounding the outer periphery of the package 7 supported by the holding holder plate 8.
Are integrally supported on each sub spindle 3.

The basket 5 includes a flange 5a and a flange 5a.
a circular side plate 5b provided concentrically with a and integrally therewith;
An annular body 5c concentrically opposed thereto with a space therebetween
And a spoke 5d connected to a plurality of peripheral portions of the side plate 5b and the annular body 5c to form a hollow, an opening of the annular body 5c serves as an entrance of the package 7, and further, the side plate 5b and the annular body 5c. Are arranged at equal intervals in the circumferential direction, and the traverse fulcrum roll 10 is axially mounted on one of the spokes 5d, and the rotation guide roll 5e is provided on the outer end of the annular body 5c. Corresponding to the traverse fulcrum roll 10, a guide roll 11 for guiding the yarn Y passing through the traverse fulcrum roll 10 forward in the axial direction of the basket 5 is provided.

In order to control the free rotation of the holding holder plate 8, the rear end of the bearing case 6 which rotates integrally with the holding holder plate 8 described above,
It was inserted into the flange 5a, and the brake piece 12 provided on the flange 5a was pressed against the outer peripheral surface of the rear end portion of the bearing case 6 by the coil spring 13.

At the tip of the sub-spindle 3, a protruding rod 14 protruding forward from the holding holder plate 8 is attached so as to rotate together with the sub-spindle 3.
A roll 15 having a guide surface of the yarn Y coinciding with the center axis of the sub spindle 3 is provided at the tip of the sub spindle 3, and further, is screwed to the outer periphery of a sleeve 16 rotatably fitted to the protruding rod 14 to form a cone shape Of the sleeve 1
6, the pad 17 is pressed against the tapered surface 8a at the end of the holding holder plate 8, and the peripheral surface of the holding holder plate 8 is pressed against the inner peripheral surface of the bobbin 7a of the package 7. By doing so, the package 7 was mounted on the sub spindle 3 in a stable state.

The main spindle 1 and the sub spindle 3
Are driven by separate variable speed drive sources 18 and 19, respectively. More specifically, the main spindle 1 is linked via a timing belt 20 to a speed change motor as one of the speed change driving sources 18, and the sub spindle 3 is rotatably supported on the main spindle shaft 1. A timing belt 23 is stretched between the toothed pulley 21 and each driven-side toothed pulley 22, and the driving-side toothed pulley 2 is
1 is linked to a speed change motor as the other speed change drive source 19 via a timing belt 23 ′.
By selecting the rotation speeds of 8, 19, each sub spindle 3
Thus, a rotation region that does not rotate during rotation of the main spindle 1 can be obtained.

Reference numeral 24 denotes a number of twine rolls corresponding to each package 7 provided at the tip of the main spindle 1, and 25 denotes a guide roll 11 at the tip of an arm 26 provided on the main spindle 1.
And a guide roll 27 provided such that the yarn guide surface coincides with the axial direction of the basket 5.
And a yarn Y having passed through the guide roll 11 and the roll 15 is twisted between the twining roll 24 and the discharge roll 27. It is wound on a winding roll (not shown) at a constant speed.

The arm 26 becomes an obstacle when the package 7 is replaced. Therefore, as shown in the figure, in the case where two packages 7 are attached, the arm 26 is attached so as to be able to rotate 90 ° with respect to the main spindle 1, and in use, the arm 26 is attached to the arm 26 by a lock pin (not shown). When the provided guide roll 25 is fixed so as to match the front surface of the twine roll 24 and the package 7 is mounted, the fixing by the lock pin is released and the arm 26 is rotated 90 ° with respect to the main spindle 1. The arm 26 is moved away from the position facing the front surface of the package 7. 1 and 3, when the yarn rolls 24 are provided on the main spindle 1 back and forth, it is preferable that the yarns are not overloaded, but as shown in FIG. It can also be provided. By increasing the number of sub spindles 3, twisting can be performed while pulling out the yarn Y from three or four packages 7.

Next, the twisting operation by the present apparatus will be described. a. When only twisting is applied to the combined yarn The main spindle 1 and the sub-spindle 3 are made to match the rotation ratio of the driven side toothed pulley 22 and the driving side toothed pulley 21 by the two speed change motors 18 and 19. At the same speed. For example, the number of teeth of the driven-side toothed pulley 22 is 50T, and the number of teeth of the driving-side toothed pulley 21 is 80T.
, The sub spindle 3 is rotated by 8/5 with respect to the number of revolutions of the main spindle 1. In this case, the sub-spindle 3 does not substantially rotate, and the yarn Y drawn from the package 7 is not twisted at all over the entire length. To explain this, the speed change motor 18 that drives the sub spindle 3 is in an inoperative state (the driven toothed pulley 22 is fixed),
When the main spindle 1 is rotated one turn in the counterclockwise direction by the transmission motor 17 that drives the main spindle 1,
Revolves once around the main spindle 1 and the sub spindle 3 moves clockwise (in the opposite direction to the main spindle 1).
8/5 rotation. Therefore, the sub spindle 3 is moved counterclockwise by the transmission motor 19, that is, the main spindle 1
In the same direction as above, at a speed corresponding to the rotation ratio of the driven-side toothed pulley 22 and the driving-side toothed pulley 21,
The sub spindle 3 does not substantially rotate. Therefore, the yarn Y pulled out from each package 7 at a constant speed is not twisted, and the yarn Y pulled out from each package 7 is pulled out to the lead-out roll 27 in a state where the yarn Y is simply wrapped by the plying roll 24, A certain twist is applied between the twining roll 24 and the lead-out roll 27 for the first time.

B. In the case of applying a composite twist, each of the sub spindles 3
Is rotated in the same direction at a speed higher than the rotation speed of the driven-side toothed pulley 22 and the driving-side toothed pulley 21 with respect to the rotation speed of the main spindle 1. When hiding,
The yarn Y drawn from each package 7 by the rotation of the sub-spindle 3 is twisted by the roll 15 and twisted by the rotation of the main spindle 1 to the yarn Y ′ twisted by the twining roll 24. The twist is further applied between the twining roll 24 and the lead-out roll 27.
For example, if the main spindle 1 and the sub-spindle 3 are both rotated counterclockwise under the above conditions, each of the yarns Y drawn from each package 7 is S-twisted and combined by the twinning roll 24. The twisted yarn Y 'is also S-twisted, and the main spindle 1 and the sub spindle 3
If both are rotated clockwise, Z twist is applied to both the yarn Y drawn from each package 7 and the combined yarn Y '. In addition, the two spindle motors 18 and 19 move the sub spindle 3 in the opposite direction to the rotational speed 1 of the main spindle 1 or smaller than the reciprocal of the ratio of the driven side toothed pulley 22 to the driving side toothed pulley 21. When rotated in the same direction as the main spindle 1 at the speed, the rotation of the sub spindle 3 is in the opposite direction to the rotation of the main spindle 1. That is, the main spindle 1
Is rotated in the counterclockwise direction, and the sub spindle 3 is driven in the opposite direction to the main spindle 1 or with respect to the number of rotations 1 of the main spindle 1, the driven toothed pulley 22 and the driving side toothed pulley 2
If the yarn is rotated in the same direction at a speed smaller than the reciprocal of the ratio of 1, the yarn Y drawn from each package 7 and the combined yarn Y 'are twisted in the opposite direction.

As described above, this composite twisted yarn feeder can prevent damage to the yarn such as a singleton breakage due to skidding on the surface of the package 7, and can also determine the yarn Y unwinding from the package 7 and the basket speed. By keeping the ratio with the rotation speed of 5 constant, the number of twists per unit length of the twisted yarn Y becomes constant, and even if tension is applied to the yarn Y, the movement of the twist, that is, It exhibits extremely stable mechanical properties without generation, and when it is used as an intermediate step in the yarn processing process, it is extremely easy to untwist the yarn after processing, and the yarn can be formed into a yarn depending on the size of the package. There is no change in the number of twists to be given, and a stable twisted yarn can be obtained in which an accurate twist is given over the entire length. In addition, if there is a variation in the number of twists, an incorrect yarn called “cavity twist” occurs in the composite twisted yarn, but according to this composite twisting yarn feeder,
Since the number of twists of the yarns drawn from each package can be made equal, shrinkage due to twisting is uniform, and the characteristics of the yarns subjected to composite twisting are improved.

[0017]

According to the first aspect of the present invention, it is easy to apply a single twist to a yarn pulled out of a package and to apply a composite twist to a yarn that has been twisted with a single device. Can be selected and taken out, and the use efficiency of the device can be increased, and since the number of twists of the yarns drawn from each package is equal, the shrinkage due to twisting is uniform, and the characteristics of the yarns subjected to composite twisting Will be better.

According to the invention as set forth in claim 2 of the present application, with a simple configuration, a state in which only a twist is applied to the yarn drawn out of the package and a composite twist in which each of the twisted yarns are twisted are provided. You can choose the state to be hung.

[Brief description of the drawings]

FIG. 1 is a cutaway side view of a composite twisting yarn feeder.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is an enlarged cut-away side view of the main part.

FIG. 4 is an enlarged sectional side view showing a modification of FIG. 3;

FIG. 5 is a cutaway side view of a conventional device.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 main spindle 2 machine frame 3 sub spindle 4 support frame 5 basket 6 bearing case 7 package 8 holding holder plate 10 traverse fulcrum roll 11 guide roll 18 speed change drive source 19 speed change drive source

Claims (2)

[Claims] A main spindle supported by a machine base; and a plurality of sub spindles supported by a frame supported by the main spindle and revolving around the main spindle while rotating around the main spindle. The package is rotatably supported on the upper side, and a cylindrical basket having a plurality of rotation guide rolls parallel to the axis is provided on the outer periphery thereof so as to rotate integrally with the sub spindle. A brake for controlling the relative rotation between the two is provided, and the yarn drawn out of the package on the outer surface of the basket, wound around the rotation guide roll and along the outer circumferential direction of the basket is turned in the axial direction. A traverse roll for guiding the front of the basket to the front of the basket, and a turning roll for turning the guided yarn forward along the axis of the spindle on the front of the basket; At the front end of the main spindle, and at the front position of the twine roll,
A take-out roll for drawing out the combined yarn Y is provided to be supported by the machine base, and each of the sub spindles is interlocked with a separate speed change drive source so as to include a rotation region that does not rotate during rotation of the main spindle. A composite twisting yarn feeder characterized by having been made. 2. A main spindle is interlocked with one speed change drive source via a timing belt, and a sub-spindle group is provided on a drive-side toothed pulley rotatably supported on a main spindle shaft and on each sub-spindle. A timing belt is stretched between the provided driven toothed pulley and the driven toothed pulley is interlocked with the other transmission drive source via the timing belt, and by selecting the rotational speed of both transmission drive sources, That each sub-spindle has an area that rotates in the same direction as the main spindle at a rotation speed that matches the rotation ratio between the driving-side toothed pulley and the driven-side toothed pulley during one rotation of the main spindle. The composite twisted yarn feeder according to claim 1, wherein: