JPS626142Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a composite yarn manufacturing device, and more specifically, the present invention relates to a composite yarn manufacturing apparatus, and more specifically, a composite yarn made of a filament in the core and staple fibers in the sheath so that composite yarn does not generate composite unevenness in the longitudinal direction. The present invention relates to an apparatus for producing composite yarn.

Conventionally, as a manufacturing apparatus for this type of composite yarn, as shown in FIGS. 1 and 2, a ring spinning machine equipped with an accessory device for supplying filaments has been used. That is, the main parts of the apparatus consist of a drafting device, a twisting and winding device, and an attached device such as a filament supply filter.

Therefore, the roving 1 made of staple fibers is
The roving is fed through the traversing roving guide 2 to a drafting device having a front roller 3, an apron 4, a middle roller 5, and a cross roller 6, and a brake draft between the cross roller 6 and the middle roller 5 and a brake draft between the middle roller 5 and the front roller 3 are supplied. After being drafted to a predetermined magnification in the main draft between the two, it enters the twisting and winding device. On the other hand, the filament 7 passes through a filament guide 10 fixed to a tensor 8 and a top arm 9, and the roving 1 is drafted into a fleece-like form and combined with staple fibers. The combined structure has a filament overlapping a fleece-like staple fiber group, and has a structure in which the filament is easily covered by the staple fiber. The combined structure passes through the snail guide 11 and is twisted while ballooning while rotating the traveler 14 on the ring rail 13 by the rotation of the yarn tube 12, and the filament becomes a composite yarn covered with staple fibers. , is wound around the yarn tube 12. In addition, 15 is a cradle that supports the apron 4, and 16 is a roving guide bar to which the roving guide 2 is fixed, which traverses from side to side and periodically moves the roving 1 passing through the roving guide 2 from side to side. By doing so, the surface of each roller, especially the rubber-coated top roller, is prevented from being locally worn, and uniform drafting is always performed. In this way, in a composite yarn whose core is a filament and whose sheath is made of staple fibers, the filaments overlap on a fleece-like staple fiber group, and by twisting, the filaments are covered by the staple fibers. As shown in FIG. Due to the traverse of the guide bar 16, the position of the fleece-like staple fiber group supplied to the front roller 3 periodically fluctuates from side to side. Therefore, the position of the filament overlapping the staple fiber group is not stable over time. , the filament, which should be in the core, is exposed on the yarn surface in some parts along the longitudinal direction of the composite yarn, damaging the appearance of the composite yarn, causing uneven dyeing, and causing loss of product value. It has the disadvantage of being exposed.

The present invention eliminates the above-mentioned conventional drawbacks and provides an apparatus for producing composite yarn in which the composite state of staple fibers and filaments is uniform along the longitudinal direction of the composite yarn and does not cause unevenness. The purpose is to

In order to achieve the above object, the composite yarn manufacturing apparatus according to the present invention is provided by combining filaments with staple fibers drafted by the drafting device on the downstream side of a drafting device that drafts rovings of staple fibers, and then creating a composite yarn. In an apparatus for producing yarn, a roving guide that traverses while supplying roving is connected upstream of the drafting device, and a filament guide that supplies filament is connected downstream of the drafting device, and both guides are connected simultaneously. It is configured to traverse in the direction.

That is, the composite yarn manufacturing apparatus of the present invention has a third
As shown in the embodiment of the figure, the filament guide 1
0 is fixed to the roving guide bar 16 and the roving guide bar 1
Filament guide 1 in synchronization with the traverse of 6
0 in the same direction. Therefore, the flow of the staple fibers of the roving 1 drafted through the roving guide 2 can be matched with the supply position of the filaments from the filament guide 10, so that the filaments are always drafted into a fleece-like state. It can be located in the center of the staple fiber group. Moreover, since the staple fibers constituting the roving 1 flow at high speed in the high draft between the back roller 6 and the front roller 3, the roving guide 2 (usually
Traverse several times per minute, and 1 to 2 cm
The time it takes for the staple fibers to reach the front roller 3 after passing through the roving guide 2 (which has a traverse width of approximately There is almost no possibility that the feeding position of the filament to be fed will deviate from the center of the fleece-like staple fiber group. Therefore, the filament can be coated stably with the staple fibers evenly along the longitudinal direction of the composite yarn.

As described above, according to the present invention, the roving guide and the filament guide are connected to each other so that the filament guide makes a traverse motion in the same direction as the roving guide, so that the filament supplied from the filament guide is , can be overlapped at the center of a group of fleece-like staple fibers that are constantly drafted over time, and therefore, by twisting, the coating of the filament with staple fibers can be made uniform and stable along the longitudinal direction of the composite yarn. be able to. Furthermore, by simply interlocking the filament guide with the roving guide, it is possible to easily obtain a composite yarn with the desired uniform coverage, making it possible to carry out the process with a simple modification of an existing spinning machine, making it economical. It is true.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a conventional composite yarn manufacturing apparatus, FIG. 2 is a perspective view of a draft device thereof, and FIG. 3 is a perspective view of a draft device of the composite yarn manufacturing apparatus of the present invention. 1... roving, 2... roving guide, 3... front roller, 7... filament, 10... filament guide.

Claims (1)

[Scope of utility model registration request] In a device that produces a composite yarn by doubling filaments to the staple fibers drafted by the drafting device on the downstream side of a drafting device that drafts rovings of staple fibers, the rovings are supplied on the upstream side of the drafting device. A composite yarn manufacturing device in which a roving guide that traverses while traversing and a filament guide that supplies filament on the downstream side of a front packing draft device are connected, and both guides are configured to traverse in the same direction.