SU1296636A1 - Device for feeding fibrous material to textile machine - Google Patents

Abstract

The invention relates to the textile industry, is intended to feed machines with fibrous material and improves the uniformity of the material feed by eliminating the tears of its layer. The walls of the fiber separator 1 and the hopper 4 are provided with two zones of perforation 5 and are enclosed in a duct, which together with the walls form ducts from which suck, fluff and light weed impurities are sucked out, through the air pressure transported by the fibrous material through the holes of the fiber. 2 hp f-ly, .2 ill. from 5 Ka.1

Description

The invention relates to the textile industry, mainly to spinning production, where bunker feeders are used to provide continuous and automatic fiber feeding of various machines.

The purpose of the invention is to improve the uniformity of the material supply by eliminating tears in its layer.

1. shows the proposed device; figure 2 - section aa in figure 1,

The device includes a fiber separator 1 with inlet and outlet nozzles 2 and 3, a loading hopper 4 with double walls and perforation 5 on the inner walls, discharge perforated cylinders 6, air ducts 7, nozzles 8, nozzles 9, common suction channel 10, seals 11 on the wall between air ducts 7 and perforated cylinders 6 and a photoelectric sensor 12 that maintains a constant level of fiber in the fiber separator 1.

The device works as follows.

The air-fiber flow is supplied to the upper nozzle 2 of the fiber separator 1. As the fiber-air flow moves in the fiber separator, the movement and expansion of the movement speed occur with a simultaneous change in the direction of movement of the fibrous materials. As a result, the fibrous material is separated from the flow and fills the hopper 4, from where it is fed to the fed machine via withdrawal cylinders 6. The remainder of the airborne flux through the outlet 3 and connecting ducts (not shown) is fed to subsequent similar devices installed on other machines in order to supply these machines with fiber materials.

Part of the transported fibrous material transported in air, along with weed impurities, leaves through the upper perforation 5 in the bunker walls, and the other part of the dusty air through the lower perforation. Cleaning the fibrous layer from dust, fluff and weed impurities is provided mainly in the upper zone perforation 5, which is closer to a constant fiber level, where it has a low density

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therefore, there is an intense release of dust, lint, and trash through the openings 5 into the duct 7 under the action of a positive pressure drop created by the fan. The fiber level in the bunker 4 is maintained by the photoelectric sensor 12. Air coming out of the perforations through the air ducts passes through the surface of the lead-through perforated cylinders 6 to the nozzles 8. Separate straight fibers are retained from the surface of the perforated cylinders, and the dusty air along with the small weed impurities and down are taken in by the nozzle 8. The spuned fiber retained on the surface of the perforated cylinder is returned by rotating perforated cylinders to the canvas. oknistogo material fed to the machine on. The nozzle 9, located inside the perforated cylinder, sucks the dusty air remaining in the canvas of the fibrous material along with small trash and fuzz. The exhausts entering through the nozzle 8 and removed by the nozzles 9, through the common channel 10, are diverted to the dedusting system of fed machines or to a separate filter system.

The location of the upper perforation zone at a depth of (0.1–0.3) N from the upper level of the fiber, depending on the grade and quality of the fiber, ensures an intensive release of dust, fluff and

weed impurities. The presence of two perforation zones on the walls of the bunker ensures, along with maximum cleaning of the layer, its uniform distribution with the same density across the width of the shaft. Placing the second zone below 0.6N reduces the cleaning of the fibrous canvas and excessively increases its density. The optimal linear dimensions of the openings of the upper zone are within (O, 5-0.8) d, and the lower zone (0.8-0.9) d, where d is the length of the smallest straight fiber fed to the fed machine. These restrictions on the size of the holes are aimed at eliminating the diversion of curved and sinuous straight fibers to the waste and to reduce the cost of producing mines.

The presence of a perforated zone near the upper level of the fiber provides an abundant yield of lint, dust, and chalk.

impurities in the duct under the action of positive pressure drop. Deep perforation ensures uniform compaction of the fibrous layer by discharge rolls and its additional dedusting.

The installation inside the perforated groundless cylinders of the nozzles ensures that the air is drawn from the production airways and the return of the straight fibers to the bunker, which virtually eliminates the ingress of dusty air into the environment, and also significantly reduces energy costs. Installing nozzles provides additional cleaning of the fibrous layer.

Claims (2)

1. A device for feeding fibrous material to a textile machine, containing a hopper with double side walls, the inner ones of which have through holes arranged along the height of each 25 walls in two groups with a continuous section of them, a pair of spin rollers and a suction air pump - a different system O five 0 five By the fact that, in order to increase the uniformity of the material supply by eliminating the misalignment of its layer, the distance from the upper level of the bunker to the lower boundary of the upper group of holes in its wall is 0.1-0.3 of the height of the bunker, and the distance from the same The level to the upper boundary of the lower group of holes is 0.4-0.6 the height of the bunker, and the pitch of the holes corresponds to 1.5-2.5 of their diameter. 2. The device in accordance with claim 1, 1, and 3) is that it has tubes connected to the suction pneumatic system, each of which is installed inside the discharge roller and faces the corresponding cavity between the side walls of the bunker, at the same time, the discharge rollers are punched out perforated. 3, The device according to Claims 1 and 2 .0 t is characterized in that it has suction nozzles, each of which is installed inside a respective discharge roll, and the inlets of the nozzles are facing one another. . " x5 7 Editor I.Rybchenko Compiled by M.Voronin Tehred M.Hodanich Order 723/31 Circulation 428 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5 Production and printing company, Uzhgorod, st. Project, 4 Corrector S.Cherni