JPS6047364B2 - Equipment for removing dust from spinning raw materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for removing dust from spinning stock, particularly cotton, during processing prior to carding.

With the development of open-end spinning machines, the adoption of open-end spinning machines in the textile industry is increasing.

Although open-end spinning machines are highly productive, they are very sensitive to fine dust, which can accumulate in the rotating spinning chamber, resulting in poor yarn quality and even breakage. Studies have shown that fine dust accumulates first, and then larger impurities attach to the dust. Therefore, removing fine dust during open-end spinning has become a serious problem. Dust removal is even more important since the rotary spinner is very suitable for processing low quality cotton. Although high-power purifiers are commonly used to remove dust from the spinning stock, these purifiers cannot meet the thorough dust removal requirements of open-end spinning machines. It is also necessary to incorporate these purifiers into the process as independent units, which requires additional space. The object of the invention is to thoroughly remove dust from the spinning stock during its processing prior to carding for spinning machines, in particular open-end spinning machines, and to carry out additional cleaning with a simple device. It is.

According to the invention, during processing prior to carding, the fiber raw material is thoroughly separated into individual fibers, which are either separated from the fibers or attached to the fibers. Remove dust including fine dust with air.
Dust can be removed from a small amount of fibers at a time, resulting in a very high degree of dust removal and ensuring that even the finest dust is removed.

Furthermore, according to the present invention, a trough feeding machine for supplying the spinning raw material, a fiber opening roller for opening the spinning raw material,
A device for removing dust from the spinning material, which is provided between the feeder and the opening roller, and a rotating drum sieve, which is provided immediately after the opening roller in the feeding direction of the spinning material and is connected to a vacuum source. There is obtained a device for supplying spinning material to a card and removing dust from the spinning material, comprising:

This device can thoroughly remove dust and further clean the spinning raw material. In the relevant area provided in this equipment, dust is thoroughly removed from small amounts of fibers as the spinning stock is separated into individual fibers, and fine dust adhering to the rotating spinning chamber is thoroughly removed. As a result, the spinning machine can operate at maximum efficiency and the quality of the yarn is the highest. Complete removal of dust in the feeder in front of the card also means that no space is required for additional dust removal machinery. Therefore,
The costs required in the factory for the overall preparation of the spinning stock for the spinning machine are reduced. In conjunction with the high-speed opening rollers of the trough spinning feeder, at least one of a cleaning grid or an air guide plate or baffle is preferably used to effect dust removal. A chamber having an air inlet on the side of the trough spinning raw material feeder may be provided below the opening roller. The chamber wall opposite the air inlet continues into the nip between the opening roller and the drum sieve. This makes it possible to remove the opening roller to the maximum extent possible. The opening rollers are preferably serrated rollers, and at least one opening roller is preferably provided approximately in the center of the chamber near the opening rollers. The interior of the drum sieve is preferably fitted with still air baffles so that the fibers are rapidly sieved through the drum sieve.

Therefore, a scraper can be omitted. It is advantageous to provide a stationary baffle at least on the side facing the opening roller. This causes the fibers to follow a path from the opening rollers 5 around the drum sieve to the other side of the drum sieve. Cleaning and dust removal are carried out both by opening rollers and by drum sieves. A feed shaft with or without a shear wall can be provided after the drum sieve in the feed direction. This feed shaft continues up to the removal roller. Alternatively, intake rollers for carding machines or other machines can be combined directly with the drum screen. Hereinafter, the present invention will be described in detail with reference to the drawings.

A spinning material feeder for a carding machine has a supply container 2 for spinning material (for example cotton) 3, at the bottom of which there is a trough spinning material feeder 4.

The trough spinning raw material feeder 4 includes a trough 5 and a feed roller 6.
and a fiber opening roller 7. Rollers 6 and 7 rotate in the same direction, with opening roller 7 rotating faster than supply roller 6. A drum sieve 8 is provided next to the opening roller, and the interior of this drum sieve 8 is connected to a vacuum source. A chamber 9 is provided below the opening roller 7.

An air inlet 10 is provided as far as possible above this chamber 9 and below the trough spinning raw material feeder 4 . Guide or baffle plates 11 and 12 extend into the nip between the opening roller 7 and the drum screen 8 and allow the fibers to move around the drum screen 8 to the outlet 13. Between the baffle plate 12 and the drum screen 8 slots 14 can be provided for the intake of secondary air. Inside the drum sieve 8 is a still air baffle 1.
5 is provided. This air baffle 15 ensures that the fibers fall into the space 13. If necessary, a scraper can be provided to remove fibers from the drum sieve 8. A cleaning grid 16 located approximately in the center of the chamber 9 separates out relatively large impurities. Those impurities are collected at the bottom 9a of the chamber,
9a or these impurities can be taken out through a flap (not shown). The opening roller 7 is preferably a serrated roller as shown. A feed shaft 17 can be provided downstream of the drum sieve 8 as a direct feeder, as shown in the figure.

This supply shaft 17 is provided with a vibrating wall 18 . This vibrating wall 18 is vibrated by a vibrating mechanism 19. This vibrator 19 has a cam 20 and a follower arm 21 that contacts the cam. The follower arm 21 is connected to the vibrating wall 18 . A level adjuster is indicated by reference numeral 22. Take-out rollers 23 and 24 are provided at the lower end of the supply shaft 17. The fibers taken out by these rollers are discharged onto a chute 25. The fibers leaving the trough spinning feeder 4 in a more or less separated state are blown with air in a chamber 9 to remove dust and impurities and are sent to the drum sieve 8 .

This drum sieve 8 also removes dust. The trough 5 can be adjusted relative to the feed roller 6 so that a fine opening of the fibers takes place.

Due to the interaction between the drum sieve 8, the trough spinning raw material feeder 4, and the opening roller 7, a dust removal operation is performed at the point where a relatively small amount of fibers passes, thereby almost sufficient dust removal is performed. . FIG. 2 shows several feed devices 1 connected in cascade.

A common vacuum line 26 is preferably provided as shown to remove dust from the drum sieve. However, the device for separating the spinning stock into individual fibers and removing fine dust by means of an air stream can also be an independently operable unit that is combined as an individual paulownia machine in the cleaning or preparation process.

Of course, other devices and other combinations are also possible.
In summary, this supply device is a dust removal unit,
In this unit, a device for thoroughly separating the spinning material into individual fibers is combined with an air suction device for removing dust, including fine dust.

[Brief explanation of the drawing]

1 is a sectional view of the dust removal device according to the invention integrated with the feed device of a direct feed device for carding machines configured as a feed shaft; FIG. 2 is the cascade shown in FIG. 1; FIG. 2 is a perspective view of the device. 4... Trough spinning raw material feeder, 5...
Trough, 6... Supply roller, 7...
Opening roller, 8...Drum sieve, 9...
...Chamber, 11, 12...Baffle plate, 16
... Cleaning grid, 17 ... Supply shaft, 18 ...
... Vibration wall, 19... Vibration mechanism, 23, 24.
...Take-out roller.

Claims (1)

[Scope of Claims] 1. A device for supplying spinning raw materials to a card, which comprises a trough spinning feeder for supplying the spinning raw materials, a fiber opening roller for opening the fibers, and a device provided immediately after the fiber opening roller. a rotating drum sieve connected to a vacuum source; and a dust collection chamber provided below the opening roller, the airflow being directed to the bottom of the opening roller after it hits the opening roller. and an air inlet on the side of the trough spinning feeder to reach the rotating drum sieve, and an air inlet on the side opposite the air inlet extending into the nip between the opening roller and the rotating drum sieve. a chamber having a chamber wall; a still air baffle disposed at the bottom of the rotary drum sieve; An apparatus for removing dust from a spinning material, comprising a feed shaft for collecting the spinning material falling from the rotating drum sieve and a take-off roller for taking out the spinning material from the lower part of the feeding shaft. 2. The device for removing dust from a spinning raw material according to claim 1, wherein the supply shaft is provided with a vibrating wall that is vibrated by a vibrating mechanism. 3 A device for supplying spinning raw materials to the card, which includes a trough spinning feeder for supplying the spinning raw materials, a fiber opening roller for opening the fibers, and a device provided immediately after the opening roller and connected to a vacuum source. A rotating drum sieve is provided, and a chamber for collecting dust is provided below the opening roller, and the airflow, after hitting the opening roller, passes under the opening roller and passes through the rotating drum sieve. a chamber having an air inlet on the side of the trough spinning feeder and a chamber wall on the opposite side of the air inlet extending into the nip between the opening roller and the rotating drum sieve; a stationary air baffle for preventing air from flowing into the inner side of the rotating drum sieve facing the opening roller and from a lower surface of the rotating drum sieve; A plurality of devices are installed in parallel, each consisting of a supply shaft that collects the spinning material that falls from the shaft and a take-out roller that takes out the spinning material from the bottom of the supply shaft. A device for removing dust from a spinning material, characterized in that the device is connected to a spinning source. 4. The device for removing dust from the spinning raw material according to claim 3, wherein the supply shaft is provided with a vibrating wall that is vibrated by a vibrating mechanism.