RU1768678C - Feed device for textile machine - Google Patents

Abstract

The invention relates to the textile industry and is intended to equip carding machines with hopper feeders with a low fluctuation in the linear density of the material being produced. The hopper has a cylindrical shell with two tangential nozzles for loading and withdrawing pulp. The rotor rotating inside the shell, with the blades attached to it, ensures stable maintenance of the linear density of the fibrous material at the exit. The rotor speed varies depending on the readings of the sensors located at the output of the hopper. 2 ill. fe

Description

The invention relates to the mechanical technology of fibrous materials, mainly to the bunker feeding of carding machines with natural or chemical fibers and their mixtures.

A bunker is known, which is a box of rectangular cross section at the output of which output shafts are located. The material entering the hopper is compacted by its own weight and air pressure. The layer level in the hopper varies, the degree of loosening of the shreds on the left and right in the hopper is uneven, therefore, the compaction of the fibers and the width and height of the hopper is uneven.

A bunker is known in the form of a shaft of rectangular cross section, in which a briquette of fibrous material is formed by means of a rake moving reciprocally in a vertical plane.

Obtaining uniform fibrous flooring in such a hopper is difficult due to

heterogeneous and numerous processing phases:

-the changing rake pressure on the fiber during briquette formation, as simultaneously with the formation, the flooring is selected with sealing shafts;

- the rake compacts the material with waves;

- the fiber will hang on the working elements of the rake;

-column lock clamps the briquette only along the contour and bends it;

- the presence of adhesions of formed briquettes also contributes to unevenness.

The prototype was adopted by the automatic feeder APS-120 Ш fiber material containing a cylindrical body with tangentially located loading and unloading nozzles and a blade drum.

However, during the rotation of the blade drum, part of the fibrous material rotates with the drum for several cycles, which contributes to the curing of the XI Os 00 About XJ 00

local and affects feed uniformity. In addition, this design does not form a fiber layer uniform in bulk density, which negatively affects the power of textile machines.

The aim of the invention is to increase the uniformity of the supply of fibrous material by producing a layer with the same density in width.

This goal is achieved by the fact that in a device for feeding a textile machine containing a cylindrical body with tangentially located loading and unloading nozzles, a blade drum mounted in the housing with the possibility of contact of its blades with the walls of the housing, it is additionally equipped with a rotary shutter pivotally mounted on the inner wall housing adjacent to the discharge pipe, and output rollers mounted on the end of the discharge pipe.

Figure 1 shows a General view of the device; figure 2 is a section along a - a in figure 1.

The device consists of a cylindrical shell 1 with tangential nozzles - loading 2 and unloading 3. Inside the shell mounted drum 4, closed from the ends. The pins of the drum 5 are installed in the supports 6. Two blades 7 are placed on the drum, the height of which is equal to the width of the annular channel. A spring-loaded damper 8 is pivotally mounted inside the shell, the rotation force of which can be adjusted. A pair of output shafts 9, a sealing and conveying material, are coupled to a discharge nozzle 3. The blades 7 may have a radial movement. The housing is sealed by seals 10.

The operation of the hopper is as follows.

The fiber is fed from the pneumatic system to the shell 1 through its loading pipe 2.

Rotating, the blade 7 advances the fiber along the annular channel, simultaneously compressing it to the desired value. This is achieved by setting the resistance force of the shutter 8 to rotate in its hinge and the rotation speed of the output rollers. When the material reaches the fork, it enters the discharge pipe 3 and is removed from the hopper by the shafts 9. The blade 1 reaches the contact with the shutter 8,

turns it, goes longer through the annular channel. At this time, a second diametrically located blade 7 begins to move and compact the fiber. It picks up a new dose of fiber entering the hopper, promotes and compacts it. The cycle repeats.

Claims (1)

SUMMARY OF THE INVENTION Textile feeding device machine, comprising a cylindrical body with tangentially located loading and unloading nozzles, a blade drum mounted in the housing with the possibility of contact of its blades with the walls of the housing, characterized in that, in order to increase the uniformity of supply of fibrous material by obtaining a layer with the same density in width, it is additionally equipped with a rotary damper pivotally mounted on the inner wall of the housing adjacent to the discharge pipe, and output rollers installed at the end of the discharge pipe. / 4 8