CS259692B1 - A device for separating fibers in an air stream - Google Patents

Abstract

The device for separating fibers from the air stream extracted from a textile machine comprises a separation chamber, the wall of which is formed by a screen filter in the shape of a part of a cylindrical surface placed in a housing which has an air stream inlet opening into the separation chamber and an air ground outlet, wherein in the separation chamber, provided with an outlet for the separated fibers, a wiper is rotatably mounted, attached to the inner wall of the screen filter. The wiper is formed by a radial blade, rotatably arranged between two opposite extreme positions, and resting in at least one extreme position from the inside of the housing on the rotatably mounted housing lid, so that it closes the housing when the lid is opened. The device is suitable for textile machines by extracting air from individual work stations of the machine, in particular a rotor spinning machine.

Description

Device for separating fibers in air stream

The apparatus for separating fibers from an air stream exhausted from a textile machine comprises a separation chamber, the wall of which is formed by a screen filter in the form of a portion of a cylindrical surface housed in a housing having an air flow inlet to the separation chamber and an air outlet, provided with an outlet for the separated fibers, a wiper mounted on the inner wall of the screen filter is rotatably mounted. The wiper is formed by a radial vane arranged rotatably between two opposite extreme positions and abutting at least one extreme position from the inside of the housing on the pivotally mounted housing lid so that it closes the housing when the lid is opened. The device is suitable for textile machines with air extraction from individual workstations of the machine, especially the rotor spinning machine.

259Ó92

BACKGROUND OF THE INVENTION The present invention relates to an apparatus for separating fibers from an air stream exhausted from a textile machine, comprising a separation chamber, the wall of which is formed by a sieve filter in the form of a cylindrical surface. the wiper is rotatably mounted in the chamber provided with the outlet for the separated fibers;

Some textile machinery workplaces exhaust air to remove various fine contaminants, especially fibers that are released when processed from fibrous material · Fibers are usually separated from the air stream by a screen filter of various configurations ·

According to LE-OS 33 20 208, a device for separating fibers from an air stream discharged from a textile machine is known, comprising a separation chamber with an air inlet in which a screen having a part of a circular surface is located in the front wall.

In the opposite wall of the chamber there is rotatably mounted a disk with radially arranged wiping arms fixed to the drive shaft. The screen area above the drive shaft is only part of the circular surface defined by the wiper arms.

In operation, the air stream sucked in by the fan enters the chamber and exits through the screen surface, the fibers trapped on the screens being wiped off by the scraper arms and discharged to the outlet port ·

DE-OS 28 U743 discloses an apparatus for separating fibers from a fiber. The wiper is formed by one or more of a rotating screw that wipes a portion of the cylindrical surface of dirt and fiber from the inner wall of the sieve filter and continuously discharges it to the chamber outlet.

However, these devices are relatively complex and space-intensive

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a simple, space-saving and operationally reliable apparatus for separating fibers from an air stream exhausted from a textile machine, comprising a separation chamber whose wall is formed by a sieve filter in the cylindrical surface. to the separation chamber, and an air flow outlet, wherein in the separation chamber provided with the outlet for the separated fibers, a wiper mounted on the inner wall of the screen filter is rotatably mounted.

According to the invention, the wiper is formed by a radial vane arranged rotatably between two opposite extreme positions and abutting at least one extreme position from the inside of the housing on the pivotally mounted housing lid so that it closes the housing when the lid is opened.

According to a preferred embodiment, the blade hinge and the lid hinge are provided on the housing cross member. For manual handling, the blade is a two-arm lever arm provided with a control arm located outside the housing.

An exemplary embodiment of the device according to the invention is shown schematically in the accompanying drawings, in which Fig. 1 shows the device in a front view, Fig. 2 in a side view, and Fig.

3, 4 versions of the device in front view. · Front view ·

The apparatus (FIGS. 1, 2) comprises a housing 11 provided on a frame 6 in which a separation chamber 6, whose side surface is predominantly formed by a screen filter 6, is disposed in the form of a part of the cylindrical surface 6.

In the exemplary embodiment, the part of the cylindrical surface% is almost half of the cylindrical surface shell defined by an axial section.

In the front wall 6 of the housing 1, which is also the wall of the separation chamber 3, an inlet 2 is provided, to which the collecting tube 8 is connected for extracting air from individual workplaces of the machine, for example a rotor spinning machine. The manifold 8 is connected to the inlet 2 via a fan 12 driven by an electric motor 10.

In the bottom 11 of the housing 1 there are provided two outlets 12 to which the discharge pipes 13 are connected.

The top wall of the housing 1 and the separation chamber 2 are formed by two lids 14 _t whose adjacent hinges 15 are provided on a crossbar 16 which connects the front walls of the housing 1. two opposing end positions I, II, defined by lids 14 which abut against the supports 20 of the housing 1. *

In operation, the air stream as the fiber carrier medium enters the separation chamber 2 divided by the blade 12 located in the initial vertical position III (Fig. 1), in two parts, the material components of the air stream trapping on the screen filter surface 6, medium passes through and passes through a sieve filter 13 ·

If necessary, the operator rotates the control arm 22 in the direction of the arrow 23. wherein the blade 19 summarizes and concurrently compresses the material component of the air stream into the layer 24o After moving the blade 19 to the dashed position i, at the height of the pads 20 and closes the separation chamber 2, the operator tilts the lid 14 in the direction of arrow 25 to the dashed position, removes the layer 24. moving the blade 19 again to the starting position III and lowering the lid 14o

Likewise, the control arm 22 can be rotated in the direction of the arrow 23. The blade 19 is in its extreme position I and II outside the area of the screen filter 6 so that it does not interfere with the flow of air through the cabinets.

The lid 14 can optionally be secured to the housing 1 by a suitable lock, which is openable by the blade 19 in the extreme position I, II.

The sieve filter 1 is, for example, formed by a perforated sheet surface provided with a dense bronze or brass sieve on the inside, from which it is possible to easily wipe off the deposited material components having a filtering capacity in a certain layer.

The device shown in FIG. 3 has a wiper 18 arranged to wipe off the material components from the sieve filter 6 as it moves between the extreme positions I, II, which are also its starting positions.

The vane 19 passes from both sides by a rounding 26 into lateral abrasion edges 27, which may optionally be toothed.

Referring to FIG. 4, the screen filter 6 has the shape of a quarter of a cylindrical surface 2 to which the abutments 20 adjoin. The separation chamber J can be closed with only one lid 14 ' 17 of the wiper 28, in the form of a radial vane 12, which passes by a rounding 26 into a single inner wiper edge 27. The vane 19 is displaceable by the partially illustrated control arm 22 by the positions I and II. From the current position I, which is the current starting position, the blade 19 is moved by the control arm 22 to the dashed position II, to the position of the support 20, whereby the formed mass airflow layer 24 is removed after tilting the lid 14 into the dashed position.

The material components accidentally deposited on the other side of the blade 19 'can be removed while the machine is at rest. The interval of removal of the material components from the apparatus is determined by the operating conditions.

If necessary, the control arm can be controlled by a suitable programmable mechanism.

Claims (3)

Apparatus for separating fibers from an air stream exhausted from a textile machine, comprising a separation chamber whose wall is formed by a screen filter in the form of a portion of a cylindrical surface housed in a housing having an air flow inlet opening into the separation chamber; a wiper attached to the inner wall of the screen filter is rotatably mounted in the separation chamber provided with the outlet for the separated yarns, characterized in that the wiper (18) is formed by a radial vane (19) arranged aggressively between two opposite extreme positions (I, II) ) and resting in at least one extreme position from the inside of the housing (1) on the rotatably mounted cover (14) of the housing (1) so that it closes the housing (1) when the lid (14) is opened. 2c Device according to claim 1, characterized in that the hinge (17) of the vane (19) and the hinge (15) of the lid (14) are provided on a ‘partition (16) of the housing (1) o Device according to claim 1, characterized in that the vane (19) is formed by one arm of the two-arm lever (21), the other actuating arm (22) being located at the housing (1) o