SU1390258A1 - Raw cotton gin - Google Patents

Abstract

The invention relates to a textile industry, namely to a raw cotton cleaner, and reduces its losses when a high cleaning effect is obtained for heavy impurities m. The Kolkovy auger 4 is located under the feed rollers 2 and below the serrate drum 5 throughout their length in such a way that one of its tored lies in the same plane with the ends of the feed rollers and the other with the end of the serrate drum. The screw length is longer than the feed roller length by three steps. Part of the feed roller enters the zone between the feed rollers and the screw. n drum surface -shchatogo screw equipped with pegs, 2 yl.

Description

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The invention relates to textiles-1 {1st: industrial and can be used on cotton ginning factories for the production of weed impurities, including heavy ones (stones and metal objects), from cotton raw.

The purpose of the invention is to increase the cleaning efficiency by removing heavy impurities and reducing the loss of raw cotton.

Fig 1 shows the scheme of raw cotton cleaner; on - view A on fig about 1 o

The cleaner contains a shaft 1 with feed rollers 2 and a working chamber 3 with a spiky roller installed in it in the form of a screw 4, serrata drum 5 and a puller 6 “The lower part of the chamber is designed as a groove 7 for the screw 4.

The cleaner works as follows.

The cotton from shaft 1 is fed by feed rollers 2 to chamber 3, where some of it is caught by the serrate drum 5, and the main mass falls on auger 4 and piles it on the lower part of the serrate drum 5, from which raw cotton is removed with a brush puller 6 and output from the camera.

Drum headset does not seize heavy impurities in a free state, and those heavy impurities that are associated with raw cotton are lumped out of them due to the effects of the auger shredders 4 and the teeth of the serrate drum 5, resulting in lumps of raw cotton loosened.

Heavy impurities by screw 4 are moved along chute 7 and out of the cleaner through the opening at the end of the chamber.

Installing the spindle screw with a feeder and below the sawed drum along their entire length ensures that the raw cotton transported by the auger is thrown onto the sawed drum in the upward direction. The heavy impurities in the raw cotton are transported along the bottom of the chamber and, as a rule, do not throw a blade auger upward due to their larger, compared with the buckets and lumps of raw cotton, weight and smooth surface with

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Exceptions are minor heavy impurities, which, due to their low weight and size, can be thrown up inside lumps of raw cotton. However, most of these small heavy impurities are removed from the raw cotton lumps when they are captured by the teeth of the sawtooth drum, since, as a result of a sudden change in the direction of movement, the lumps loosening and small heavy impurities are separated from the cotton raw particles and become free They are not captured by the serrate headset and under the action of inertial forces and weight or reflected from the serrate drum fall to the bottom of the chamber, where they fall under the impact of the auger blade. The length of the screw is set sufficiently so that practically all the raw cotton it transports for a certain number of revolutions of the screw is fed to the sawtooth barntail and then removed by the puller from the cleaner, and the heavy heavy impurities are unloaded by the screw.

Installing the screw so that its end in the lead-in part is in the same vertical plane with the end of the feeder, and the opposite end in the same plane with the end of the serrate drum, provided that the length of the screw is longer than the feeder, this part of the serrate drum is necessarily outside the zone feeding raw cotton feed rollers. In this area, the raw cotton is fed to the serrate drum only with a screw, thereby achieving a multiple injection of raw cotton particles to the serrate drum that was not caught in the area under the feed rollers.

The length of this part of the serrated drum should be no less than the pitch of the screw blade of the auger, which guarantees at least one of its impact on the cotton particles of the bottom of the bottom of the chamber and their supply to the serrate drum. However, as calculations and experiments show, in order to virtually eliminate losses of raw cotton with heavy impurities, it is necessary that the lengths per liter be more than the length of the feed rollers by the length of its three steps.

In the area between the pit tele and lOFteKOM comes part of the side surface

the serrated drum, due to which the pilchat headset snatches out separate lumps and particles from the barb of the raw cotton feed that feeds the rollers. In this case, there is a sharp change in the direction of their movement, as a result of which they loosen and release heavy impurities that cannot be caught by the serrate headset and fall down. Thus, part of the raw cotton, cleaned of heavy impurities, is removed from the chamber almost immediately after feeding by the feeding rolls, as a result of which the amount of raw cotton caught by the auger is reduced, which reduces the loss of raw cotton.

Claims (1)

Invention Formula Raw cotton cleaner containing a feeder installed in the working chamber, serrated drum with removable NIKOM and a kolkovish roller located under the feeder at the bottom of the working chamber for feeding raw cotton from below to the surface of the sawing drum installed rotatably in the same direction as the pointed roller, characterized in that, in order to increase the cleaning efficiency by removing heavy impurities and reduction of cotton losses, the spinner roller is made in the form of a screw with spikes on the surface of its screw blade and exceeds the feeder in length, and the serrate drum is installed between the feeder and the spinner roller with an offset With respect to the lead-in part of the roller in the direction of impurities from the chamber, the end of the roller in its lead-in part is located in the same vertical plane with the end of the feeder, and its opposite end. - in the same plane with the end of the serrate drum.