JPH03174045A - Twisted yarn of glass bulky yarn, production thereof and apparatus for producing the same - Google Patents

Abstract

PURPOSE:To reduce the amount of glass bulky yarn used and obtain the subject twisted yarn having smoothness with hardly any fluffing, etc., by wrapping and plying wrapping yarn of twisted glass bulky yarn, etc., around core yarn composed of metallic fiber, carbon fiber, etc. CONSTITUTION:The objective twisted yarn obtained by passing core yarn 1 composed of metallic fiber, glass fiber, cellulosic fiber, aramid, carbon fiber or a combination thereof through a hole of a vertical shaft part 9 in a hollow spindle 11, lifting the core yarn in the ring of a vertically movable annular snail guide 14, composed of a rounded metal, etc., and having 30-50mmphi inside diameter above the hollow spindle 11, on the other hand, placing a bobbin 12 in which twisted glass bulky yarn in wound on a bobbin holder 10 secured to the shaft part 9 of the hollow spindle 11, pulling up the glass bulky yarn into the ring of the snail guide 14 with operation of a motor 13 and plying the glass bulky yarn with the core yarn. Furthermore, a granular substance such as active carbon is preferably included in the core yarn or wrapping yarn, etc., or water or a slimy substance is preferably contained therein.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a twisted yarn in which glass bulky yarn is wound around a core yarn and twisted together, and a method and apparatus for manufacturing the same.

(Prior art) Conventionally, covered yarn with a core-sheath structure was made of elastic yarn as a core yarn, with the aim of improving functions such as strength, texture, tension, elasticity, and moisture absorption.
There is a method of winding synthetic fiber processed thread around it, but it is also possible to use glass fiber as a core thread and wind a thin metal wire around it, or vice versa, to use a thin metal wire as a core and cover the glass fiber around it. Covered yarns, twisted yarns made of a single strand of yarn, and yarns made by adding synthetic fiber processed yarn to fine metal wires are known, and things that take advantage of their mutual strengths and compensate for their weaknesses are known.

For example, as a base material for friction materials in place of asbestos,
No. 3-28217 discloses a glass fiber string in which a metal wire is wound in the length direction of glass fiber and is impregnated with a synthetic resin, and Japanese Utility Model Application Publication No. 55-111978 discloses a glass fiber cord in which a metal wire is wound around the length of the glass fiber and impregnated with a synthetic resin. A bulky processed yarn such as glass fiber with loops or entanglements on the outer periphery is used as a manufacturing device, and a hollow spindle is used as a manufacturing device, and a wound yarn is wound around a core yarn passed through the hollow part of the hollow spindle. For example, Japanese Patent Application Laid-Open No. 63-303139 discloses an elastic covering yarn in which an elastic yarn is let out without being substantially stretched, and a non-elastic, non-stretchable yarn is wound around the yarn while being actively fed out. A manufacturing method, a mechanism for paying out an elastic thread at a constant speed without substantially stretching it, a hollow spindle through which the elastic thread passes, and an inelastic, non-elastic thread rotatably supported around the hollow spindle. A winding of elastic yarn, a drive mechanism for drawing out a non-elastic, non-stretchable yarn from the winding yarn and making it circulate around the elastic yarn that has passed through the spindle, , a mechanism that actively sends out the non-stretchable thread at a speed higher than the payout speed of the elastic thread; and a covering thread formed by winding the non-elastic thread and the non-stretchable thread around the elastic thread. For example, Japanese Patent Laid-Open No. 62-238830 discloses an elastic covering yarn manufacturing apparatus equipped with a mechanism for manufacturing a covered yarn using a hollow spindle, and a method for manufacturing a covered yarn using a hollow spindle and an apparatus therefor. In the method for manufacturing a covered yarn by winding a wound yarn around a core yarn passed through a hollow part of the rotating hollow spindle, the core yarn is wound around a single bobbin mounted on the rotating hollow spindle. Manufacturing a covered yarn by separating a plurality of wound yarns from each other and winding the plurality of wound yarns simultaneously and at the same intervals on the same cross section of the core yarn while performing ballooning. A rotating hollow spindle through which a core yarn passes, a bobbin holding a plurality of wound yarns mounted thereon, and separating the plurality of wound yarns from the bobbin at the same interval. An apparatus for producing v1 wrapped yarn is disclosed, which includes a rotating guide that rotates at the same time.

(Problems to be Solved by the Invention) In the conventional Utility Model Publication No. 63-28217, since the metal wire is spirally wound around the glass fiber in the length direction, the metal wire, the glass fiber string, and the The slack in the metal wire that occurs due to the difference in specific gravity occurs, for example, when the spiral metal wire is strained by the guide when it passes over a hook-shaped thread pulling guide that is often used for thread pulling in the clutch facing manufacturing process. The loose metal wire gets caught on the protrusions of the guide, causing the metal wire to break, or the loose protrusions retain their protruding shape during winding, leading to not only defective products but also damage to the equipment. -1
In the method disclosed in Japanese Patent No. 11978, the overturned bulky fibers are pulled out from the metal wire by the thread guide and form lump-shaped pools, and as a preventive measure, metal wires are mixed into the glass fiber threads. Even if a twisted yarn is used, there are problems such as requiring a lot of time and effort before the winding process to remove the residual twisting effect, and the method disclosed in JP-A-63-303139 is The sheath thread is limited to a thin metal wire, and since the wound thread passes through the thread guide or slent guide hole while being bent, it is stretched by a metal wire ladder and sometimes cut, and then this thread is used to create a secondary In processing, for example, processing of fabrics and wound threads for friction base materials, the bent metal thin wire has a drawback that causes cutting troubles such as coming into contact with parts of the processing machine and getting caught. Showa 62-238
What is shown in Publication No. 830 is such that when the glass fibers pass through contact points such as rotating guides and snell guides, the fibers are fluffed and squeezed to form a flattened coated yarn with little bulge. However, the disadvantage was that increasing the thickness required a large amount of glass fiber.

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned conventional problems. , Winding the heated glass bulky yarn 11 times! Twisted glass bulky yarn made by twisting or winding, and twisted glass bulky yarn containing particulates in the core yarn, wound yarn, or a combination thereof, containing moisture or slimy, and further inside a hollow spindle. A glass bulky yarn twist manufacturing method in which a winding yarn of a glass bulky yarn rotating around the hollow spindle is wound around a core yarn that ascends and passes through a snell guide disposed above the hollow spindle. directly penetrates the Snell guide, the rotation of the spindle is set at 1000 to 4000 rpm, the height position of the Snell guide is set according to the rotation speed, and the rotation trajectory of the wound yarn is made into a conical shape with less bulge. A method for producing a glass bulky yarn using a thermal system, and a method for producing a twisted glass bulky yarn in which a supply side drawer of the core yarn is held in tension; In a glass bulky yarn twisting manufacturing device that causes a winding yarn of a glass bulky yarn that rotates around the hollow spindle to be wound around a core yarn that ascends and passes through a guide, a bobbin holder is attached to the hollow spindle;
Provided is a glass bulky yarn twisting device that allows the height position of the Snell guide to be set and has an inner diameter of 30 to 50 Illlφ.

Fine metal wire refers to brass wire, aluminum wire, copper wire, etc., and granular materials include friction modifiers such as cachera dust, activated carbon, barium sulfate, calcium carbonate, diatomaceous earth, metal oxides, metal sulfides, etc. is a binder used in friction modifiers, and refers to so-called water-based sizing agents such as starch, polyvinyl alcohol, and water-soluble epoxy resins.

If the rotation speed of the hollow spindle is less than the limited value, uneven twisting will occur, if it is more than that, the glass bulky yarn will become fluffy, and if the inner diameter of the snel guide is less than the limited value, it will come into contact with the glass bulky yarn, causing fluffing, and In this case, the twisting position of the core yarn and the wound yarn is high, and the position of the winding device is also high, which increases the device volume and becomes uneconomical.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

Fig. 1 shows a schematic perspective view of the process of the present invention, Fig. 2 is a partial perspective view showing the main parts, and (A) shows how to free the core yarn.
3 shows the state in which the core yarn is stretched with a tension, and FIG.

In the figure, 1 is a core yarn, 2 is a wound yarn, and 3 is a glass bulky yarn heating system showing the finished product.

The supply source of the core yarn 1 is, for example, the glass roving 5 of the thread cone 4.4 and the metal reel 7 of the metal wire 6, and a guide roll 8.8 for feeding out the core yarn is provided.

A hollow spindle 11 has a hollow shaft portion 9 vertically disposed above the guide roll 8, and a bobbin holder 10 is attached to the shaft portion.
is arranged, and the bobbin holder 10 of the hollow spindle is
A bobbin 12 formed by heating and winding a glass bulky yarn that will become the wound yarn 2 is placed on the bobbin 12, and the bobbin 12 is held on the shaft portion 9 by a chuck (not shown). The hollow spindle 11 is rotated by the operation of the adjacent motor 13, and at the same time, the bobbin 12 is also rotated together with the hollow spindle, and the rotation speed is 1000 to 4000 r.
In the pn+ range, when using 300 tex glass roving, the standard speed is 3000 rpm, and in the case of 1500 tex, 1500 rpm.

A snell guide 14 having an annular shape is provided above the hollow spindle 11, and guide rolls 15 and 15 are provided above the snell guide to guide the twisted yarn 3 that will become the product, and are rotated by a rotating motor 16. The indirect winding roll 17 and the twisted yarn 3 rotating in contact with the indirect winding roll 17
A winding bobbin 18 is provided for winding up.

The Snell guide 14 is configured to be vertically movable and settable in height, and has an inner diameter of 30 to 501IIlφ.
It is preferable to use a hard material made of rounded metal or ceramic that will not rust.

A guide roll 8 provided on the supply side of the core yarn 1 is used when changing the direction of the core yarn running as shown in FIG. 1, or when it is free as shown in FIG. As shown in FIG. 2(b), a plurality of rolls 8'', 8'', 8'' may be provided which run in a zigzag motion to provide resistance.

In addition, as shown in FIG. 2 (A), a bobbin 4'' with a glass roving 5'' wound on the core yarn side is mounted on a rotating turntable 20, and the glass roving is placed above the bobbin 4''. The core yarn 1 passes through the provided snell guide 14゛ and is free.
It is inserted into the shaft portion 9 of the hollow spindle 11 and raised.

The operation of the present invention and its effect will be explained below.

The glass roving 5.5 and the core yarn 1, which is a bundle of the glass roving 5.5 and the thin metal wire 6, which are unwound from the thread cone 4.4 and the metal reel 7, run along the guide roll 8.8 while changing direction.
Furthermore, it passes through the vertical shaft part 9 hole of the hollow spindle 11 which is rotated by the drive of the motor 13, and rises through the ring of the Snell guide 14 disposed above the hollow spindle.

On the other hand, a bobbin 12 wound with a heated glass bulky yarn, which will become the winding yarn 2, is placed on a bobbin holder 10 fixed to the shaft 9 of the hollow spindle. The twisted yarn 3 is pulled up inward, intersects with the core yarn 1, and is combusted and raised by the operation described below.The twisted yarn 3 travels along the guide roll 15. The film is wound onto a winding bobbin 18 via an indirect winding roll 17.

The winding yarn 2 that goes directly from the bobbin 12 to the snell guide 14 is moved to the snell guide 14 by the rotation of the bobbin holder 10.
4, but since the supply side guide roll 8 of the core yarn is a roll whose purpose is simply to change the direction,
The core yarn 1 rising between the nine holes of the shaft is in a free state without applying any tension, and follows the ballooning of the wound yarn 2 caused by the rotation of the bobbin holder IO, that is, the trajectory of the wound yarn 2 due to centrifugal action. At the same time, the core yarn 1 also rotates and is twisted into the shape shown in FIG. 3(d) above the snell guide 14.

If the guide rolls 8', 8', and 8' are arranged as shown in FIG. 1 rises vertically without any tension acting due to the resistance during running, the rotation speed of the hollow spindle 11, the winding speed of the twisted yarn 3,
If the thickness of the wound yarn 2 is taken into account, the yarn will be covered as shown in Fig. 3 (e), and if a core yarn l containing particulate matter, for example cashew dust 19, is used, it will be covered and the particulate matter will be covered. Do not expose the twisted yarn.

In any of the above-mentioned cases, if the bobbin 12 is made of the wound yarn 2 that has been heated to Zl, and the hollow spindle IJ is rotated to S+=ri, the wound yarn 2 will be freed and restored to its bulky state. do.

As shown in FIG. 2(a), the plain glass roving 5' drawn out from the bobbin 4' and passing through the snell guide 14' is rotated by rotating the rotary table 20, for example, the Z-twisted core yarn 1 is supplied to the shaft part 9, and on the other hand, by rotating the hollow spindle 5 lfi around the Z-stripped wound yarn 2, if the l-wound yarn is twisted together with the core yarn 1, both the core yarn 1 and the wound yarn 2 are twisted. A new combination that does not have the tendency to untwist and twist (suddenly,
The number of processing steps is also reduced to 2/3 compared to conventional methods.

The wound yarn 2, which balloons between the bobbin 12 and the snell guide 14 due to centrifugal force, has an inner diameter of 30 to 30 b. If there is a large amount of space between the hollow spindle 11 and the snell guide 14, the space between the hollow spindle 11 and the snell guide 14 is widened, and when there is a small amount of space, the space between the hollow spindle 11 and the snell guide 14 is made wide, and when there is a small amount of space, the space between the hollow spindle 11 and the snell guide 14 is made narrower. , the wound yarn 2 that rotates in a conical manner is connected to the Snell guide 1.
4, the winding yarn 2 of the glass bulky yarn maintains its bulge, while the core yarn 1 runs without being strained, and twists and twists while untwisting. Since it is combined and twisted without passing through the yarn, glass bulky yarn can be twisted without stretching or tightening.

Although a cover may be provided around the outer periphery of the pobbin 12 to prevent ballooning, it is desirable to combine it with the above-described structure.

In addition, since there is little contact friction for both core yarn 1 and 11-wound yarn 2, not only is there less fluff during the twisting process, but even when the fibers of core yarn 1 or 11-wound yarn 2 are used with particulate matter included in them, for example, It is also possible to use a glass bulky yarn that does not easily shed the granules and contains a large amount of moisture or slimy.
It dehydrates water by centrifugal force, and If
Since the tension is extremely low when processing the i-yam, it can be twisted and twisted while maintaining its bulge without elongation.

By applying tension to the core yarn 1 rising inside the shaft 9 hole of the hollow spindle 11, the core yarn 1 and the wound yarn 2 can be easily used for combination twisting and winding.

(Effects of the Invention) The present invention untwists the heated glass bulky yarn without elongating the core yarn, and twists it without straining, resulting in a twisted yarn that has smoothness and maintains roundness and bulge without fluffing. The amount of glass bulky yarn used can be reduced, and its range of applications is wide, including those containing granular materials.If this twisted yarn is used, it can be woven into a low-density, elastic, and bulky insulating cloth, which can be processed easily. There are few problems caused by the core yarn, and it has many effects.

[Brief explanation of the drawing]

FIG. 1 shows a schematic process perspective view of the present invention, and FIG. 2 is a partial perspective view showing the main parts, where (A) shows the core yarn in a free state and (B) shows a state in which tension is applied to the core yarn. (c) in Figure 3,
(d) and (e) show schematic diagrams of the appearance of the twisted yarn. l... Core thread 2... Winding thread 3... Twisted thread 10... Bobbin holder 11... Hollow spindle 14.14"
...Snell guide figure 3 (c) (d) (e)

Claims (5)

[Claims] (1) It is characterized by a core yarn made of fine metal wire, glass fiber, cellulose fiber, aramid or carbon fiber, or a combination thereof, with a wound yarn of heated glass bulky yarn wound and twisted, or wound and twisted. Twisted glass bulky yarn. (2) The twisted glass bulky yarn according to claim 1, wherein the fibers of the core yarn, the wound yarn, or a combination thereof contain particulate matter, and contain moisture or slimy. (3) A glass bulky yarn twist manufacturing method in which a winding yarn of glass bulky yarn rotating around the hollow spindle is wound around the core yarn rising and passing through a hollow spindle and a snell guide disposed above the hollow spindle. In this step, the wound yarn is directly passed through the Snell guide, the rotation of the spindle is set at 1000 to 4000 rpm, the height position of the Snell guide is set according to the rotation speed, and the rotation trajectory of the wound yarn is set. A method for producing twisted glass bulky yarn, characterized in that the yarn is twisted into a conical shape with little bulge. (4) The method for producing twisted glass bulky yarn according to claim 3, wherein the supply side drawer of the core yarn is maintained in a tensioned state. (5) A glass bulky yarn twist manufacturing device that winds a glass bulky yarn winding yarn that rotates around the hollow spindle around the core yarn that ascends and passes through a hollow spindle and a snell guide disposed above the hollow spindle. A bobbin holder is attached to the hollow spindle, the height position of the Snell guide can be set, and the inner diameter is set to 30 to 50 m.
A glass bulky yarn twisting device characterized in that the yarn has a diameter of mφ.