JPS5870719A - Yarn-spinning device - Google Patents

Abstract

PURPOSE:A yarn-spinning device in which the fleece that is fed down from the front roller is falst-twisted and the yarn to twine round the fleece is made to come down to the flase-twisting part in parallel with the fleece, thus making it possible to widen the space between the front roller and the yarn-entwining means. CONSTITUTION:The false-twisting means 39 is set so that the fleece 37 is false- twisted in a position a little lower than the middle point of the hollow part 38 in the cylinder 33 of the device for entwining a yarn round the fleece. The false twisting comes up to the nipping point of the front rollers 31 and 31'. The yarn 36 fed into the cylinder 33 is made to advance down in parallel with the fleece 37 and entwined spirally round the fleece by the false-twisting means 39. The operation for feeding the yarn and becomes simple.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a yarn using a fleece made of stable fibers with a desired total denier, which is obtained by drafting a fiber by the same draft mechanism as that of a spinning machine, for example, and by using its front roller. This relates to a spinning device for producing a non-twisted staple yarn as shown in FIG. 1, which is made by winding a thin presser yarn spirally around the outer periphery of the fleece (without inserting a core yarn into the fleece). In other words, in FIG. 2 is a staple fiber bundle of total denier, and 2 is one or several thin endless filaments spirally wound around the stable fibers, and is a non-twisted fiber bundle with a holding thread wound spirally. A part of the table thread 3 is shown.The fleece l is a natural fiber or chemical fiber staple with a length of 15fiW to 100m++, and the holding thread is usually one to several thin endless filaments of nylon or polyester, and the denier of the filament is is 10d to 50d, and the amount of filament is about several inches compared to the amount of fleece.

Such a non-twisted stable yarn has conventionally been produced using a spinning apparatus disclosed in Japanese Patent Publication No. 47-49776 shown in FIG. That is, the spinning apparatus shown in FIG.
A hollow guide tube 12 is provided by making the roller obliquely inclined, and a cylindrical body 13 of a pressing thread winding means is provided at the tip of the guide tube 12. The pressure thread winding means cylinder 13 is rotatably supported by a bracket +4 having a fixed hollow cylinder, and is rotated at high speed by an external force such as a belt. A presser light bobby/15 is fixedly provided on the outer periphery of the presser yarn winding means cylinder 13, and a friction ring 16 is provided on the top of the cylinder 13. A necessary length of the presser thread is taken out from the bobbin while being ballooned, and is supplied to the top surface of the friction ring 16. Similarly, fleece is also supplied to the top surface of the friction ring 160. The holding thread is wound helically around the fleece at the friction ring 16 position. A non-twisted staple yarn IT, on which the presser thread is spirally wound, is taken out from the lower part of the pressure thread winding means cylinder 13, and is sent out by a pair of delivery rollers 18, 18' below the cylinder body 13. The winding means 19 provided downstream of the winding means 19
It is rolled up to 0.

In this device, an air supply means is provided for blowing air into the guide tube 2 in order to safely guide the fleece from the discharge roller 11 for discharging the fleece to the friction ring 16 of the presser yarn winding means tube 13. ing.

Furthermore, as a spinning device for producing non-twisted stable yarn, a spinning device disclosed in Japanese Patent Publication No. 55-29174, shown in FIG. 3, has been disclosed.

The spinning device shown in FIG. 3 drafts the staple fibers to a desired total denier, transforms them into a fleece shape, discharges them from a pair of front rollers 21.21', and rotates them at high speed directly below the front rollers 21.21'. A presser thread winding means cylinder 22 is provided.
A presser light bobby/23 is fixedly attached to the cylinder body 22 on the outer periphery of the presser thread winding means. The fleece is wrapped in steps 2 and 4, and the top part 24 of the cylinder, which is the wrapping point, can be designed to be within the length of the fiber from the contact point of both front rollers 21 and 21', that is, the nip point of the fibers. It is a characteristic. In this way, the fleece in which the presser threads entered into the hollow portion 25 of the thread winding means cylinder 22 are spirally wound can be held extremely stably in shape by the presser threads. By providing a suction means 26 directly below the presser thread winding means cylinder 22, the non-twisted stable thread 2T in which fleece and presser threads are spirally wound is taken out while being suctioned, and is taken out by the lower delivery roller 28. .28' and rolled up into the shape of a pobbin 30 by the winding means 29. In this device, a Niuma Hill nozzle 21'' is provided in close proximity to the feed rollers 21, 21'.

The spinning devices shown in FIGS. 2 and 3 all have complicated structures, and in particular, even the front roller 61 has a narrow distance to the top of the cylinder of the yarn winding means. The disadvantage is that the fleece is difficult to handle when cut.

The spinning device of the present invention, which uses a non-twisted stable yarn in which the presser yarn is spirally wound around the outer periphery, has a simpler structure than the conventional one, and in particular, the distance between the float/troller and the top of the cylinder of the presser yarn winding means can be made smaller. The thread splicing and clasping make the work easier. The fleece that is discharged downward by the front roller is false-twisted at a position slightly below the mid-height of the hollow part of the thread winding means cylinder, and the false twist It is designed to trace upward to the nip point of the troller, and the presser yarn fed into the cylinder advances downward parallel to the fleece, and after descending to the position where the false twist is applied, It is characterized by being designed to be wrapped around the outer circumference in a spiral manner.

The spinning apparatus of the present invention will be explained with reference to FIGS. 4, 5, and 5 showing embodiments thereof.

The spinning apparatus according to the present invention shown in FIG. 4 is provided with a pair of front rollers 31, 31' for drafting a group of stable fibers, such as rovings, to a desired total denier and discharging them in the form of a fleece. The fleece is discharged downwardly from a pair of front rollers 31, 31'. IC7 frame 3 directly below the front roller 31.31'
A cylindrical body 33 for holding and thread winding means is provided rotatably supported by 2. The holding thread winding means cylinder 33 is rotated at high speed by a driving means 34. A bobbin 35 for holding yarn is fixedly attached to the outer circumference of the cylindrical body 33.

The presser thread 36 is ballooned out from the bobby/35 to a required length, and the presser thread winding means cylinder 3
At the top 3T of 3, the fleece enters the hollow part 38 parallel to the fleece descending from above and descends. Both frond rollers 31
．． The distance between the 3+' contact point, that is, the nip point of the fibers, and the top 31 of the holding means winding means cylinder is about 120 mm, which is longer than the fiber length of the fleece. The length of the holding thread winding means cylinder 33 is approximately 320πm. Generally, a false twist is applied at a position slightly below the intermediate height of the cylinder 33 by rotation of the dense fleece body passing through the cylinder. Twisting can be effectively imparted to the fleece by flattening or narrowing the cross-sectional shape of the hollow portion 38 at the position 39 where this false twist is applied, or by providing a slight obstruction there.

This twist is transmitted upward along the fleece, that is, the twist rises upward to near the nip point of the front rollers 31, and the fleece can be lowered while being held in shape by the twist. Further, the presser yarn descends together with the fleece in the hollow portion 38, and is generally wound spirally around the fleece near the y false twisting position 39. Once the circumference of the fleece is spirally wound with the presser yarn, the fiber bundle is The untwisted stable filament 40 in which the pressure thread is wound in a spiral is taken out from the lower part of the pressure thread winding means cylindrical body 33, and a pair of delivery rollers provided below it. 41 and 41', and the winding means 42 provided below the sending roller 41
It is rolled up in the shape of. Although the surface speed of the feed roller 31 and the surface speed of the delivery roller 41 differ depending on the properties of the stable fibers, the latter is designed to be about 5 to 15% faster.

Note that this device is provided with a neutral nozzle 44 near the front roller 31.

Furthermore, a Niumahiru nozzle 45 is provided between the feed roller 41 and the winding means 42, but this Niumahiru nozzle 45 is provided with a cock 46, and the cock 46 opens only when the illegal system is being sent out from the feeding roller. When the system is suctioned and the correct yarn is sent out from the sending roller 41 and is wound up by the winding means 42, the cock 46 is closed to prevent the action of the needle.

The spinning apparatus according to the present invention shown in FIG.
It is set up. In this case, the false twisting position of the hollow part 38 is the installation position of the false twisting means, and there is no need to make a part of the hollow part particularly flat. It is wrapped around the fleece in a certain position.

The spinning device of the present invention, which uses a non-twisted stable yarn in which the 8-spring yarn is spirally wound, has a much simpler structure than the conventional one, and in particular, there is no space between the front roller and the crotch of the 8-segment winding hand. is wide, so the opening is extremely easy to work with.

As a result of the experiment, it was not observed that the spinning performance deteriorated even if the apparatus was simplified. Also, the power of Niuma Hill will decrease.

[Brief explanation of the drawing]

FIG. 1 is a perspective view illustrating a portion of a non-twisted staple yarn in which a presser yarn produced by the spinning apparatus of the present invention is wound in a spiral manner. FIG. 2 is a side sectional view of a spinning device conventionally used to spin the filament shown in FIG. FIG. 3 is a side sectional view of a spinning device disclosed in a recent publication for spinning the filament shown in FIG. 4 and 5 are side sectional views of the spinning device according to the present invention. 31 is a feed roller, 32 is a frame, 33 is a cylindrical body of a means for twisting the presser yarn, 34 is a drive belt, 35 is a bobbin for a presser light, 36 is a presser yarn, 3γ is the top of the cylindrical body of a means for twisting a presser yarn, 38 is a Hollow part, 39 is the false twisting position, 40
4 is a delivery roll, 42 is a winding means, 43 is a pobbin, 44.45 is a niumahil, 46 is a cock, and 4T is a false twisting means. Figure 1 Figure 8Z ・ 1 Figure 3

Claims (1)

[Claims] A pair of feed rollers 31.31' were provided for drafting the stable fiber group to a desired total denier and discharging it in the form of fleece, and the fleece discharged from the feed rollers 31.31' was disposed below the pair of feed rollers 31.31'. The pressure thread winding means cylinder 33 is supplied to the hollow part 38 of the pressure thread winding means cylinder 33, and the pressure thread winding means cylinder 33 is supported by the frame 32 and rotated at high speed, and is fixed to the cylinder body 33. A bobby/35 for a holding thread is provided, and a holding thread 36 is attached to the cylinder body 33.
A false twisting means 39 is provided at an appropriate position in the hollow part 38, and the top part 3T of the cylinder 33 is supplied to the hollow part 38.
A presser system is provided with a feed-out roller 41.4 for feeding out a non-twisted stable thread 40 on which a presser yarn is spirally wound, and a winding means 42 is provided below the feed-out roller 41. A spinning device that produces non-twisted staple yarn.