SU1481278A1 - Apparatus for blending fibrous material - Google Patents

Abstract

The invention relates to textile engineering, namely to devices for mixing fibrous material. The goal is to increase the productivity and mixing efficiency of the fibrous material. The device comprises a blended chamber, at the bottom of which there is a feed conveyor, the working branch of which is inclined towards the picker 4, a vertical pressure wall fixed to the fiber feed chamber, the drive of which is synchronized in direct motion with the feed conveyor drive and has accelerated return movement. In the ceiling part of the mixing chamber, there are symmetrically located, relative to its longitudinal axis, stops that limit the forward stroke of the feed chamber, the value of which is equal to twice the length of the chamber. 3 il.

Description

The invention relates to textile machinery, namely, devices for mixing fibrous material (e.g. cotton) selected from bales by automatic feeders.

The aim of the invention is to increase the productivity and mixing efficiency of the fibrous material.

FIG. 1 is a diagram of a device for mixing a fibrous material; on Fig 2 - the same, top view; in fig. 3 is a kinematic diagram of the drive elements of the device.

A device for mixing the fibrous material consists of a mixing chamber 1, a selector body 2,

leveling drum 3, shot-down drum 4, sealing conveyor 5, fiber feeding chamber 6, telescopic air ducts 7 and 8, fan 9 and elastic curtains 10 and 11, the feeding conveyor 12 is located at the bottom of the mixing chamber 1.

A vertical retaining wall 13 is attached to the fiber feeding chamber 6. Partitions 14 divide the feeding chamber 6 into compartments to form a labyrinth. On the end walls of the supply chamber 6, the inlet nozzles 15 are connected by piping to the supply air duct 8. The discharge nozzle 16 connects the supply chamber with the filter through the duct 7. The inlet nozzles 15 are spaced apart.

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camera 6 and are located symmetrically to the outlet 16 on both sides. The nozzle 16 has a pocket in which the grid 170 is inserted. The feed chamber 6 is provided with a drive 18 comprising two means, one of which is synchronized in forward movement with the drive 19 of the feeding conveyor 12, and the other is a means of accelerated return stroke. Camera 1 has stops 20, limiting the course of the camera 6.

The motor 19 (drive) informs the feed conveyor 12 and the chain transmission 21 one speed and one direction of rotation (the outer race 22 of the overrunning clutch 23 rotates in the direction shown by the arrow). The slider 24, interacting with the wings 25, moves the feed chamber 6 synchronously with the feed conveyor 12 until the sensor 26 enters into interaction with the stop 20. When they interact, the engine 27 of the accelerated reverse motion of the camera 6 turns on. The inner race 22 of the overrunning clutch 23 begins rotate with increased speed. Accordingly, the speed of movement of the transmission 21 increases, the slider 24 of which moves along the lower branch, interconnecting the fiber feed chamber 6 with the accelerated movement to the initial position until the sensor 28 comes into contact with the stop 29. The drive motor 27 turns off and the chain transmission 21 rotates again from the actuator 19. The slider 24 moves to the upper branch of the chain 21 and moves the fiber feeding chamber 6 synchronously with the upper branch of the feeding conveyor 12 at the same speed and in the same direction

The actuator 18 informs the feed chamber 6 a reciprocating motion between the stops in a section whose value is equal to twice the length (21) of the feed chamber 6 I0

The speed V, the direct movement of the feed chamber 6 in the direction towards the extraction body 2 is equal to the speed of the feeding conveyor 12, and the speed of the return movement V of the chamber 6 to its initial position is the maximum possible speed V (V2 V).

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The working branch of the feeding conveyor 12 has an inclined section to the selector body 2.

The mixing device operates as follows.

The fiber feed chamber 6 is located in the extreme position I (Fig. 1) „

The fiber from the automatic feeder AP-18 by the fan 9 through the duct 8 and the inlet nozzles 15 is fed into the fiber feeding chamber 6. The mixture of fiber and air passes the labyrinth formed by partitions 14 and rushes towards the outlet nozzle 16. Moving at a low speed along the corridors of the feed chamber 6, the fiber is led to the feed conveyor 12 by an even flow. The keys of the fiber fall out between the fiber previously formed in the blended chamber and the vertically installed retaining wall 13 attached to the fiber feed chamber 6, equal to layers are deposited in section 1 of the feeding conveyor 12, and the air through the mesh 17, exhaust pipe 16 and duct 7 are led to the filters.

Associated kinematically with the drive of the feeding conveyor 12, the drive 18 of the fiber feed chamber 6 informs it to move in the direction of the selector body 2 at a speed equal to the speed of the feeding conveyor 120

The simultaneous movement of the fiber feeding chamber 6 and the feeding conveyor 12 allows the fiber to be laid on the feeding conveyor in the space 1 between the fiber previously formed into a bale and a vertically installed pressure wall 13 and the layer is removed in the order in which it was removed from the bales, which eliminates over braid layers in a blended bed. Vertical pressure wall 13 prevents the collapse of the formed layers as they are moved by the conveyor 12.

A passage (21) equal to twice the length of the feed chamber 6, the latter forms a mixed bed on the falling conveyor 12, the horizontal layers of which contain all the components of the working sort, stacked one above the other in the same sequence as they were taken from the bales. In position II, when the next section of the mixed bed is formed and the automatic feeder

stops, the drive 19, synchronized in forward motion with the movement of the feed conveyor 12, is turned off and the motor 27 comes into operation for accelerated reversal, it tells the camera 6 to move in the direction to the starting point (FIG. 1, position I) an increased speed allowing the fiber feed chamber 6 to reach its initial position in a period of time equal to the stopping time of the AL-18 feeder before its return stroke. This completes the cycle of forming the bed area.

The formed areas of the mixed bed due to the inclined section of the working branch of the feeding conveyor 1 2 have an inclination towards the selector body 2, which prevents them from collapsing when moving to the selecting body when the gland wall 13 returns to its original position. The space (1), equal to the length of the feed chamber 6, in this case is freed up to form the next section of the blended bed.

Simultaneously with the formation

Measures and excess fiber leads to the upper branch of the conveyor 5. The upper branch of the conveyor 5 moves them to the zone of formation of the blended bed in section 21 and promotes active mixing of the fiber.

The main part of the fiber remains on the needles of the selector organ 2, is removed by whipping the drum 4 and sent for subsequent processing.

Such a design and operation of the device for mixing the fibrous material allows to form a 5 multi-layer mixed bed, which in its vertical section in front of the selection bodies contains all the components of the working sort, distributed in layers one above the other. This creates favorable prerequisites for their highly efficient mixing, taking into account the difference in fiber properties in single-grade bales.

Claims (1)

5 claims A device for mixing the fibrous material comprising a blended chamber, in the bottom of which there is 35 the mixed bed in section 1 is taken away by a 30-belt conveyor; the feeder body 2 continuously selects fibers from previously formed sections that are sealed by the conveyor 5 in front of the interaction zone with the selector body 2. The sealing conveyor 5 helps the feeding conveyor 12 to bring the areas of the mixed bed to the selector body 2, protects them from collapse, ensures the supply of layers of the mixed bed perpendicular to the selector body 2. The selector body 2 picks up the shreds from all layers of the blended bed at the same time and effectively mixes them. As a result, all components of the work sorting are present in a unit volume of the resulting mixture. the material being developed to the selection body with a screed drum and installed in the ceiling part of the fiber feed chamber with the drive of its reciprocating movement, the gland wall mounted for movement along the mixing chamber, characterized in that .Q increasing the productivity and mixing efficiency of the fibrous material, the pressure wall is fixed on the fiber feed chamber, the drive of the latter being synchronized 45 in forward movement with a feed conveyor drive and has a means for accelerated return movement, with stops in the ceiling part of the blender chamber, limited, however, some shreds that select a forward stroke of the feed chamber, the selection body 2 from the mixed bed may have increased size and weight. Leveling drum 3 straightens the scraps to the desired size of which is equal to twice the length of the latter, and the working branch of the feeding conveyor is made inclined towards the picker belt conveyor the material being developed to the selection body with a screed drum and installed in the ceiling part of the fiber feed chamber with the drive of its reciprocating movement, the gland wall mounted for movement along the mixing chamber, characterized in that increasing the productivity and mixing efficiency of the fibrous material, the pressure wall is attached to the fiber feed chamber, the drive of which is synchronized in direct motion with a feed conveyor drive and has a means for accelerated return movement, with stops in the ceiling part of the mixing chamber located limiting the forward passage of the feed chamber, the value of which is equal to twice the length of the latter, and the working branch of the feeding conveyor is inclined towards the selector organ. 9i  9 8 fit 2 / BUT SI it91 01 8Ш8П yy 25 25 2tf fig.Z