JP2001159037A - Suction apparatus for spinning frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce technical trouble and installation space by improving a suction apparatus provided with a primary filter. SOLUTION: One or more secondary filters 21, 41 are placed in a secondary filter chamber 42a at the outlet side of a primary filter. Filtered air can be supplied from the secondary filter chamber 42a through a suction pipe 03 to a low-pressure source 43. The flow direction at the secondary filters 21, 41 can be reversed under a counter flow to discharge the removed substance attached to the secondary filter from the secondary filter chamber 42a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction device for a spinning machine, which is provided with a primary filter through which most of the air sucked out of the spinning machine passes through the suction chamber. And also of the type guided towards a low pressure source. Furthermore, the present invention
The invention relates to a method for operating a suction device for a spinning machine with a primary filter.

[0002]

2. Description of the Related Art In a suction device for a spinning machine of this type, air mainly containing fiber material is guided through a primary filter from the region of the spinning machine toward a low-pressure source. In this case, the air leaving the spinning machine mostly flows through the primary filter. In this case, however, a partial stream of the entire outlet air, which still contains the fiber material, is supplied to the low pressure source in a separate path. In a practical embodiment, a ventilator is usually used for this partial flow. The ventilator draws off the partial stream and cleans it separately.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to improve a suction device with a primary filter so as to reduce the technical effort and required space.

[0004]

According to the present invention, at least one secondary filter is disposed in the secondary filter chamber at the outlet side of the primary filter. The filtered air can be supplied to the low pressure source via the suction conduit, and the flow direction in the secondary filter, under counterflow, remove substances adhering to the secondary filter from the secondary filter chamber Switchable to be derived.

In order to further solve the above-mentioned problems, according to the method of the present invention, a partial flow of the derived air flowing out of the primary filter without being filtered is guided to a filter chamber provided with at least one secondary filter. If the pressure rise in the filter chamber is excessive, opening and closing the flap reverses the flow direction through the secondary filter, thereby allowing the removal material in the secondary filter to pass through the open flap and removing material from the primary filter. Together with the collection chamber.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an embodiment of the present invention.

The air originating from the spinning machine is first supplied to the primary filter 33 in a first filter chamber, preferably to a conical filter, from the right. In this case, the air flows upward and downward through the conical filter into the suction chamber 42. In this case, the filtered material first remains in this first filter. About 10% of incoming air
Emerges from the primary filter and moves to the left in the filter chamber 4
It reaches 2a. From here, the partial air amount is supplied to the filter casing 11 through another filter 21,
Through the filter 41 and the second filter casing 31, through the transfer conduit 02 or the suction conduit 03, and is supplied to the low pressure source 43. The low pressure source is illustrated in FIG. 1 as a ventilator wheel 43. On the one hand, the low-pressure source receives, on the one hand, the air (90% of the total air amount) flowing radially out of the conical filter 33 and the partial air amount guided through the suction conduit 03. Low pressure source 43
May be the suction equipment in the center of the spinning mill, which is also connected to the lower shaft of the flap 51 or the collecting chamber 62 for the filter cake.

In the steady state operation of the device, the removal material or waste is deposited on the one hand in a conical filter 33. This continues to be transported further in the direction of the filter chamber 42a to the area below. In addition, substances from the partial air volume accumulate on another filter 21 and on the third filter 41. Filter chamber 42a or filter casing 11
Alternatively, the generation of pressure in or around the filter chamber 42a is monitored by the sensor 22 which can be attached to the side of the flap 51. If the pressure exceeds a predetermined value, this indicates that the removal material collected in the filter chamber 42a has exceeded the tolerance and should be discarded.

When the measured value of the sensor 22 reaches a predetermined value, the flap 51 is opened via the actuating drive 61 by a central control device, which is simply shown as a conduit or distribution device 63, and the first flap 26 The actuation drive 36 with the second flap 16 and the actuation drive is switched.

When the flap 51 is opened, the substance to be removed present on the flap 51 is collected by the lower collecting chamber 62.
To reach. By opening the flap 51, the central suction device or low pressure source 4 in the shaft below the flap 51
3 is also connected to the suction side, in particular to the ventilator wheel. On the other hand, the simultaneous operation of the actuation drive member 36 closes the suction line 03 by the flap 26 and at the same time opens the air supply line 06 of FIG. in this case,
As the flap 16 pivots downward, the penetration to the air supply conduit 06 is opened. Both flaps 16, 26
Is located on a pivot lever supported in the middle.
On the other hand, an actuating drive 36 acts on this pivoting lever. By changing the control of the actuation drive 36,
The flow direction is reversed by the filters 21 and 41. As a result, the removal substances adhering to the filters 21 and 41 on the side of the filter chamber 42a are pushed out of the filters and fall downward or pass through the opened flap 51 into the collection chamber 62 or are sucked. During the removal phase of the removal material, which lasts only a short time, the air sucked from the spinning machine passes through the conical filter 33 and into the collection chamber 42.
Flows in The rubber flap 42b closes the conical filter 33 with respect to the filter chamber 42a. When the sensor 22 or another sensor detects a relatively large pressure drop in the filter chamber 42a or an adjacent chamber, the actuating drives 61 and 36 are loaded in the opposite direction via the control 63. As a result, the flap 51 is closed again, the flap 26 releases the flow-through to the suction line 03 again, and the flap 16 closes the air supply line 06. As a result, the operation mode is switched back to the normal operation mode.

If the low pressure source 43 is provided on the spinning machine as a ventilator wheel, this is preferably
At a position adjacent to the suction chamber 42.

The control device 63 and the secondary filters 21 and 4
1 allows the suction device to operate mainly automatically.

[Brief description of the drawings]

FIG. 1 is a diagram showing an outline of a suction device of the present invention.

FIG. 2 is a side view of a view showing an outline of FIG. 1;

[Explanation of symbols]

02 transfer conduit, 03 suction conduit, 04
Chamber, 06 air supply conduit, 11 filter casing, 16 flaps, 21 filters, 22 sensors, 26 flaps, 31 filter casing, 33 primary filter, 36 actuation drive,
41 third filter, 42 suction chamber, 4
2a filter chamber, 42b rubber flap, 43
Low pressure source, 51 flap, 61 actuation drive,
62 collection chamber, 63 control device

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Andreas Rieche Switzerland Winterthur Langgasse 90A

Claims (9)

[Claims] 1. A suction device for a spinning machine, comprising a primary filter (33) through which most of the air sucked out of the spinning machine passes through the suction chamber. (42) and further to the low pressure source (43), wherein at least one secondary filter (21, 41) is provided in the secondary filter chamber (42a) at the outlet side of the primary filter. From the secondary filter chamber (42a), filtered air is passed through a suction conduit (03) through a low pressure source (4).
3) can be supplied to the secondary filter (21, 41)
The suction direction for the spinning machine characterized in that the flow direction can be switched under countercurrent so that the removal material adhering to the secondary filter is led out of the secondary filter chamber (42a). apparatus. 2. The substance removed from the primary filter chamber in the primary filter (33) is transferred to the secondary filter chamber (43a).
The suction device according to claim 1, which is derivable. 3. Suction according to claim 1, wherein substances removed from the primary filter (33) and the secondary filter chamber (42a) can be led to the collection chamber (62) when the flap (51) is opened. apparatus. 4. The low pressure source (4) includes a secondary filter chamber (42a).
3) has a first flap (51) and another flap (2)
6), wherein the two flaps are alternately switchable between an open position and a closed position. 5. The secondary filter chamber (42a) is connected to the air supply line (06) by opening the third flap (16) during operation of the actuating drive (36) connected to the control device (63). 5. The low pressure source (43), which can be connected and at the same time can close a low pressure source (43), in particular a suction conduit (03) leading to a central suction device, preferably a ventilator wheel.
The suction device according to any one of the preceding claims. 6. Suction according to claim 1, wherein a ventilator wheel (43) is arranged adjacent to the suction chamber (42) in a chamber (04) for the ventilator. apparatus. 7. The filter according to claim 1, wherein the first-order filter is formed as a conical filter.
The suction device according to the item. 8. The control device (6), wherein the pressure characteristic of the device can be monitored by at least one sensor (22).
The suction device according to claim 1, wherein the actuating drive for the flap is operable by means of 3). 9. A method for operating a suction device for a spinning machine with a primary filter (33), comprising the step of removing a partial stream of the outlet air leaving the primary filter (33) without being filtered. The secondary filter (21,
When the pressure rise in the secondary filter chamber (42a) is excessive, the secondary filter (2) is opened and closed by opening and closing the flaps (51, 26).
1) to reverse the flow direction through which the flap (5
1), and is led to the collection chamber (62) together with the substance removed from the primary filter (33).
A method for operating a suction device for a spinning machine.