JPS63120118A - Production apparatus for composite spun yarn - Google Patents

Abstract

PURPOSE:To obtain a composite spun yarn containing a core fiber at the center, by using a production apparatus to wind a covering fiber around a core fiber under twisting, wherein the position of at least one of a core fiber guide and a covering fiber guide of the apparatus is made to be adjustable. CONSTITUTION:The objective spinning apparatus is furnished with a roving drawing mechanism 1, a suction twisting drum 7 and a yarn takeout roll 8 in the order. In the above apparatus, a joining guide 2 for a core fiber 4 and a roving 5 is placed just before a front roller 3 of a drawing mechanism, a guide 2b for core fiber is attached near the guide and a roving guide 2a is attached to a drawing mechanism 1. The position of at least one of the core fiber guide 2b and the roving guide 2a is made to be adjustable along the direction perpendicular to the running direction of the yarn.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a composite spun yarn in which covering fibers are wound around a core fiber while being twisted/JO, particularly a composite yarn in which a strong fiber such as metal fiber or glass fiber is used as a core fiber. The present invention relates to an apparatus for producing a composite spun yarn that has excellent coating effects in the production of the strong composite spun yarn used in the present invention.

(Prior art) Various chemical fibers and synthetic fibers have been used along with natural fibers in fields that take advantage of their respective characteristics.Furthermore, a wide variety of chemical fibers and synthetic fibers have been used to make use of the strengths and compensate for the shortcomings of each type of fiber. Composite yarns are manufactured.

For example, as shown in Japanese Patent Publication No. 40-8748, there is a core yarn in which a long fiber filament is used as a core fiber and this is covered with a short fiber for spinning.

Regarding the production of these, it has been usual to use a ring traveler method, etc., but there is a limit to its spinning ability. However, if the yarn to be spun is a strong spun yarn using metal fibers etc. for the core, it is impossible to spin it, or even if it is possible to do so, it is extremely difficult. It is accompanied by all kinds of problems in spinning. Various proposals have been made regarding composite yarns using gold MI fibers, glass fibers, etc. as core threads, as disclosed in Japanese Patent Publication No. 48-19578 and Japanese Patent Application Laid-Open No. 59-48184. , these core yarns have smooth surfaces and poor iJ spinnability, and their coverage is severe [M
Therefore, there was a problem that bare parts remained without being covered.

The inventors of the present invention have conducted extensive research on devices that enable the spinning of the above-mentioned strong composite spun yarn, and as a result, the IJ RE
We found that method F is appropriate.

The general structure of this device will be briefly explained based on the description in Japanese Patent Application Laid-Open No. 56-58218. As shown in FIG. 7, it has two drawing Ja grooves (1), @, a yarn drawing roll (8), and two suction drums (7) that are closely juxtaposed with each other and rotate in the same direction. The stretched and separated coated fibers (goods) are supplied to the roving (5) drawn by the machine M (1) via the drawing mechanism @ and the opening roller α, and the two suction drums (7) are rotated. It has a structure in which winding is performed by. That is, with this apparatus, it is possible to produce a wide variety of composite spun yarns.

(Problems to be Solved by the Invention) The above-mentioned yarn manufacturing apparatus t certainly has an unprecedented and remarkable effect in manufacturing all composite spun yarns, but
Manufacture of the strong spun yarn desired to be achieved by the present invention (this involved various problems. Namely, the core fiber and the covering fiber are passed through their respective supply paths to a pair of suction drums that are the yarn forming section). When supplied, if a deviation occurs in the overlapping state as shown in FIG. 5, it becomes impossible to achieve sufficient coverage, and as a result, it is inevitable that the resulting product will be a composite system with many bare parts.

The present invention aims to provide an apparatus that makes it possible to easily spin a composite spun yarn having a strong fiber with poor spinnability, such as metal fiber, as a core, and that can coat the yarn extremely reliably and uniformly. This is the purpose.

(Means for Solving the Problems) In order to achieve the above object, the yarn manufacturing apparatus of the present invention has the following configuration. That is, in a yarn manufacturing apparatus in which eight components are sequentially arranged in the yarn running direction: a stretching mechanism, two parallel suction drums that rotate in the same direction in close contact with each other, and a yarn drawing roll, the stretching A guide for merging the core fibers and rovings is provided immediately before the front roller of the mechanism, and a guide for the core fibers is provided immediately before the merging guide, and the guide for the core fibers and the roving stretching mechanism t. The gist is that at least one of the provided roving guides can be positioned (ftg*σ) in a direction perpendicular to the thread running direction.

In other words, core a! The core fiber that has reached the front roller of the drawing mechanism via the Ikue route and the coating supplied from the drawing mechanism for braiding threads? By placing the core fibers at the center of the covering fibers when they are overlapped by the merging guide disposed just before the front roller, the covering fibers are prevented from falling off and reliable coverage is achieved. This is an extremely superior composite spun yarn manufacturing device that enables.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

(Example) In FIG. 1, FIG. 2, and FIG. 3, (1) has a circumferential speed that increases toward the thread running direction. This is a roving drawing mechanism composed of a pair of rolls. The stretching mechanism (1)
For multiple roll pairs, each has a guide (2>1
(2a) is provided, which is a roving guide (
2a), and the front roller (3) of the stretching mechanism (1).
) The core fiber (4) and the covering fiber (roving) are arranged in a straight line of 14M.
(5) Merging guide (2
). That is, a fiber bundle such as a sliver pulled out from the can (C) is drawn while passing through the drawing mechanism (1) and the roving guide (2a), and then passed through the merging guide (2a) just before the front roller (3). ), and on the other hand, core fibers (4) such as metal fibers are also supplied to the merging guide (2) via the core fiber supply path (6).

On the extension line of the stretching mechanism (1), two parallel suction drums (7) that are closely spaced and rotate in the same direction are arranged side by side.
The core fibers (4) and rovings (5) supplied to the above-mentioned merging guide (2) are sucked by the suction drum (7) immediately after leaving the nip point of the front roller (3), and The core is heated while the suction drum (7) rotates.
*Fiber (4) (fleece of roving (5) is wound around it, and the yarn thus formed is pulled out parallel to the axis of the suction drum (7) by a yarn drawing roll (8). It will be done.

However, in the composite spun yarn manufacturing apparatus of the present invention, a core fiber guide (2b) is disposed immediately before the core fiber supply path (6) reaches the merging guide (2), The core fiber guide (2b) has a thread path (21f) for passing the core fiber.
) is provided.

Furthermore, in this device, the position of at least one of the core fiber guide (2b) and the roving guide (2a) can be adjusted in a direction perpendicular to the yarn running direction. . As shown in Fig. 6, this is to center the core fiber (4) supplied to the merging guide (21, .) just before the front roller (3) to the center of the roving (5). In this form, (A) the core fiber guide (2b) is fixed and the roving guide (2a) is made into a node a, so that the merging guide (
2) Supplying the roving (5) to the merging guide (2) according to the position of the core fiber (4) supplied above, and CB)
By fixing the roving guide (2a) and adjusting the core fiber guide (2b), the position of the core fiber (4) on the merging guide (2) can be adjusted to the position of the supplied roving (5). Adjust the core fiber guide (2b) and roving guide (2a) according to the position.
By adjusting both, the position of the core fiber (4) on the merging guide (2) and the roving yarn (
5) The supply position can be appropriately selected from among eight options, including 91 positions.

When we actually compared the 8 above, we found that the shape? m(B) is [phantom, that is, the core fiber supplied to the joint diversion guide (2)
Depending on the position of 4), feed position 1d of roving (5)! fl
By adjusting the position of the yarn guide (2a), it was easy to adjust the yarn to M4 and overlap it with the core fiber (4). A more subtle 14-order arrangement is naturally made possible by the form (0). Therefore, by making both the core fiber guide (2b) and the roving guide (2a) possible, all forms can be implemented, and the best form can be selected depending on the situation. It is suitable.

Various known techniques can be used as a mechanism for providing the guides (2a) + (2b) in a position adjustable in a direction perpendicular to the thread running direction. For example, in Figure 4 (
Using bolts and nuts as shown in A) and (B), that is, guides (2a) and (2b) are attached to the machine base (9) by providing a pole 1-QI in the hole and attaching it to the nut αυ.
By appropriately tightening the guide (2a
) + (2b) can be adjusted in position in a direction perpendicular to the thread running direction, that is, in the direction of the arrow.

In addition, the 4th LJ (A) has a roving guide (2a), (B)
are enlarged views of the core fiber guide (2b).

The roving guides (2a) are provided in multiple locations in the drawing mechanism (1) area, eight locations in this example, but all of them are arranged in the position [1st adjustment] as described above. It is not necessary to use the Jiff fil function, and a sufficient effect can be obtained by setting only the one immediately in front of the merging guide (2) to the position adjustment i7 function.

A composite spun yarn using stainless steel wire as the core fiber (4) is produced by the apparatus of the present invention using the above-mentioned mechanism and having the roving guide (2a) and the core fiber guide (2b) in position. When the yarn was spun, a suitable yarn supply as shown in FIG. 6 was easily achieved, and the coating was visibly excellent with almost no bare parts.

(Effects of the Invention) As described above, the composite spun yarn manufacturing apparatus of the present invention makes it possible to easily position the core fiber at the center of the four fibers to be covered in the coating preparation stage, and brings about a remarkable soaking effect. It is particularly effective as an apparatus for producing strong composite spun yarns using core fibers such as metal fibers with smooth surfaces and poor spinnability.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the apparatus for producing composite spun yarn of the present invention;
Figures 4 and 8 are explanatory diagrams showing the main parts of the device, Figures 4 (4) and (B) are enlarged views showing the arrangement of the roving guide and core fiber guide, and Figure 5 6L is an explanatory view showing the condition of the yarn on the front roller passing surface, and FIG. 7 is a side view of the conventional device which is the basis of the present invention. (IL d...Stretching mechanism, (2)...Merge guide, (2a)...Roving guide, (2b)...Core fiber guide, (2f), (2b') ... Thread path, (3
)...Front roller, (4)...Core fiber, (5
)...Roving, (6)...Core fiber supply path, (7)
... Suction drum, (8) ... Yarn pull-out roll, (9
)... Machine base, α0... Bolt, (6)
... Nut, (to) ... Covered fiber, (14) ...
Opening roller, 4...drive lt! lIl! F machine,
αQ...Transmission belt, tc)...Can Fig. 4 ←-------←Fig. 5 Fig. 6 Fig. 7

Claims (2)

[Claims] (1) In a yarn manufacturing device, three components are sequentially arranged in the yarn running direction: a roving stretching mechanism, two parallel suction drums that rotate in the same direction in close contact with each other, and a yarn pull-out roll. A guide for merging the core fibers and the rovings is provided immediately before the front roller of the drawing mechanism, and a guide for the core fibers is provided immediately before the merging guide, and a guide for the core fibers and the rovings are provided immediately before the merging guide. 1. An apparatus for manufacturing composite spun yarn, characterized in that the position of at least one of the roving guides disposed in the roving drawing mechanism can be adjusted in a direction perpendicular to the yarn running direction. (2) The composite spun yarn manufacturing apparatus according to claim 1, wherein both the core fiber guide and the roving guide are adjustable in position in a direction perpendicular to the yarn running direction.