JPH0657546A - Spinning machine - Google Patents

Abstract

PURPOSE:To obtain a spinning machine capable of suppressing fluff of a spun yarn and preventing occurrence of a kinky yarn accompanied by decrease of yarn tension in joining of the spun yarn. CONSTITUTION:In the spinning machine, a fluff suppressing device 5 capable of suppressing fluff of a spun yarn is provided on the downstream side of an air spinning nozzle 3 and further, a feed means for feeding out a yarn while nipping is provided between the fluff suppressing device 5 and a slack tube 7 provided on the downstream side and capable of sucking and storing the spun yarn in joining of the yarn.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spinning machine equipped with a fluff suppressing device.

[0002]

2. Description of the Related Art Conventionally, in this type of spinning machine, a sliver is drafted by a drafting device, and then, in an air spinning device, a swirling air current is acted by compressed air jet in an air spinning nozzle to twist the spun yarn. Is delivered from the delivery roller and wound up on the winding device.

Since the spun yarn thus obtained is false twist spun by ballooning a drafted sliver in an air spinning nozzle, many spun yarn surfaces are formed on the surface of the spun yarn by the action of compressed air during ballooning. Fluff was formed, which had a considerable effect on the quality of the product.

Therefore, in order to reduce the fluff of the spun yarn, a touch roller provided on the downstream side of the delivery roller is brought into contact with a rolling element rotating in a direction inclined with respect to the yarn traveling direction to nip the spun yarn to form the spun yarn. A spinning machine equipped with a fluff suppressing device that rubs the fluff generated on the spun yarn surface around the yarn itself by giving a rubbing action has been developed.

However, since this fluff suppressing device also gives false twist to the spun yarn at the same time as the rubbing device, untwisting is performed on the downstream side of the fluff suppressing device, and the twist is slightly transmitted. ing. Therefore, if the operating speed of the fluff suppressing device is increased in order to enhance the fluff suppressing effect, the spun yarn is placed in the slack tube provided between the fluff suppressing device and the winding device to take up the slack of the spun yarn during yarn joining. When sucked, there is a problem that the twist of the spun yarn is caused by the above-mentioned twist and the warp is generated in the spun yarn.

[0006]

DISCLOSURE OF THE INVENTION In view of such a point of the conventional fluff suppressing technology, the present invention is capable of suppressing the fluff of spun yarn and reducing the tension of the yarn during yarn splicing. It is an object of the present invention to provide a spinning machine that can prevent the occurrence of

[0007]

Means for Solving the Problems A fluff suppressing device for suppressing fluff of spun yarn is provided on the downstream side of an air spinning nozzle, and the fluff suppressing device is provided on the downstream side for sucking the spun yarn at the time of yarn joining. A delivery means for delivering the yarn while nipping it between the slack tube and the slack tube is provided.

[0008]

The sliver drafted by the draft device is twisted by the air spinning nozzle and sent out from the delivery roller as spun yarn, and the fluff on the spun yarn surface is wound around the spun yarn itself and reduced by the rubbing action of the fluff suppressing device. It

Further, the twist transmission to the downstream side of the fluff suppressing device is prevented, and the twisting and the loop due to the decrease of the tension of the spun yarn do not occur during the splicing of the yarn, and the occurrence of the kink is prevented.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the embodiment will be described with reference to the drawings.

In the spinning machine of the present invention, as shown in FIG. 1, a sliver S introduced from a trumpet guide 1 is provided with a back roller pair 2a, a third roller pair 2b, a middle roller pair 2c mounted with an apron band, and a front roller. 2d
It is drafted by the drafting device 2 consisting of, and twisted by the air spinning nozzle 3 and sent out as spun yarn Y from the delivery roller 4 to which the nip roller 4a is rolling contacted.

Then, on the downstream side of the delivery roller 4,
A fluff suppressing device 5 is provided, and further, a second delivery roller 6 to which a nip roller 6a is rollingly contacted is provided on the downstream side of the fluff suppressing device 5 as a sending means, and a spun yarn Y is passed through a slack tube 7 and a yarn clearer 8. The winding device 9 winds the package P.

The fluff suppressing device 5 comprises a touch roller 5a whose surface is covered with rubber and a positively rotating cross belt 5b mounted between 1 and 2 rollers. The cross belt 5b is arranged in the yarn running direction. On the other hand, the spun yarn Y is nipped by contacting the touch roller 5a obliquely so as to form an alternate angle as appropriate. By setting the belt speed of the cross belt 5b so that the yarn traveling direction component of the belt speed becomes equal to the peripheral speed of the touch roller 5a, the spun yarn Y is fed and the spun yarn Y is laterally moved. The fluff formed on the surface of the spun yarn Y is wound around the spun yarn Y itself, and the fluff of the spun yarn Y is reduced.

It is possible to use a roller having a hyperboloidal peripheral surface instead of the cross belt 5b. However, since the contact with the touch roller 5a becomes a line contact, the cross belt 5b has a fluff suppressing effect. Does not reach

Between the yarn clearer 8 and the winding device 9, there is provided a yarn splicing carriage 10 which is movable on a common orbit provided over the respective machine frames of a large number of spinning machines installed side by side. At the time of yarn splicing, the yarn splicing carriage 10 is positioned on the weight to perform yarn splicing.

Next, the operation will be described based on an example of the embodiment.

Since the fluff suppressing device 5 provides a rubbing action in the lateral direction, the spun yarn Y is twisted at the same time when the fluff is controlled, and the spun yarn Y is untwisted on the downstream side of the fluff suppressing device 5. Although in the state, the second delivery roller 6 and the nip roller 6a provided on the downstream side of the fluff control device 5 send the spun yarn Y while nipping it, so that the twist by untwisting is not transmitted to the downstream side of the second delivery roller 6.

At the time of yarn splicing, the yarn slack generated in the spun yarn Y is sucked by the slack tube 7 connected to the suction duct 11 and stored as Y'in FIG. 1, but the twist by the fluff suppressing device 5 is as described above. As described above, it is stopped by the second delivery roller 6 and is not transmitted to the inside of the slack tube 7 located on the downstream side of the second delivery roller 6, so that the spun yarn Y ′ in the loosened state is twisted or looped. Therefore, when the winding by the winding device 9 is restarted and the yarn slack Y'stored in the slack tube 7 is pulled out and shifts to the regular winding state, the occurrence of slack in the spun yarn Y is prevented. It

[0019]

As described above, the spinning machine of the present invention is provided with the fluff suppressing device for suppressing the fluff of the spun yarn at the downstream side of the air spinning nozzle, and further, the fluff suppressing device and the yarn splicing device provided at the downstream side thereof. At the same time, when the spun yarn is sucked and stored, a sending means for sending the spun yarn while nipping the yarn is provided, so that the fluff of the spun yarn can be suppressed, and the fluff is suppressed during splicing. It is possible to prevent chattering.

[Brief description of drawings]

FIG. 1 is a perspective view of essential parts showing an outline of a spinning machine according to an embodiment.

[Explanation of symbols]

 2 Draft device 3 Pneumatic spinning nozzle 4 Delivery roller 5 Fluff suppressing device 5a Cross belt 5b Touch roller 6 Second delivery roller 7 Slack tube 9 Winding device 10 Yarn splicing machine S Sliver Y Spun yarn

Claims (1)

[Claims] 1. A fluff suppressing device for suppressing fluff of spun yarn is provided on the downstream side of the air spinning nozzle, and the fluff suppressing device is provided on the downstream side of the fluff suppressing device for sucking and storing the spun yarn during splicing. And a slack tube between which the yarn is nipped and a yarn feeding device for feeding the yarn.