JPH04153331A - Pneumatic clearer equipment in spinning machine - Google Patents

Abstract

PURPOSE:To provide the title equipment intended to mitigate loads on workers, designed to automatically adjusting the suction force due to a pneumatic fan to a proper suction force set according to the delivery rotational speed of a spinning machine, thereby preventing fleece turbulence. CONSTITUTION:The suction force due to a pneumatic fan 28 to produce an suction airflow from a draft section 13 toward a pneumatic box 23 as indicated by arrows is made variable through an inverter 29, and a control means 40 controls the inverter 29 according to the respective delivery rotational speeds of drawframe and spinning machine, thereby automatically adjusting the above suction force to a proper level corresponding to such rotational speeds.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a pneumatic clearer device for suctioning and collecting fluff generated in a draft section.

Conventional technology In the pneumatic clearer device of conventional spinning machines, especially filament machines, the motor of the pneumatic fan in the pneumatic box is
The capacity is set to provide the required fluff suction power when the machine is operated at maximum spinning speed. In actual use, the opening area of the pneuma box's exhaust port is adjusted using a manual damper, and the suction power is adjusted to be able to remove even just a single piece of fluff and debris without disturbing the drafted fleece. .

Problems to be Solved by the Invention According to the above, since the suction force of the pneumatic clearer device is manually adjusted, the damper must be adjusted every time the spinning speed (rotation speed) of the filament machine is changed. There was a problem in that the opening degree had to be adjusted manually, making the work cumbersome. Furthermore, as disclosed in Japanese Patent Application Laid-Open No. 63-196469, in a can exchange device in which the can is moved by pushing it in a convex state, the can can be exchanged due to the positional relationship with the sliver cutting blade that comes and goes from outside the can transfer path into the transfer path. In order to position the continuous sliver between the coiler tube and the discharged full can at the appropriate position for sliver cutting, there is a method in which the coiler tube is stopped at an appropriate position after the can is full, and then the can is replaced. In such a filament machine that stops the coiler tube at the appropriate position, even if you try to stop the coiler disk at the appropriate position while the coiler disk is rotating at a high spinning speed, the stopping accuracy is poor and the coiler disk will not be fully stocked. After that, while spinning continues, the speed is reduced to a fairly low speed and the coiler tube is stopped at an appropriate position while slowly rotating the coiler disk. In such a filament machine, the suction force of the pneumatic clearer device is adjusted to a strong suction force according to high-speed spinning operation, that is, a state where a large amount of fluff is generated, and the spinning speed is adjusted to stop the coiler tube at an appropriate position. This strong suction force acts on the spun fleece even when the speed is low (it is difficult to change the damper opening during operation because it is manual). This will disturb the fleece. Furthermore, since a suction force greater than necessary is generated even though there is little fluff generation at low speeds, there is also a problem from the viewpoint of energy saving.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a pneumatic clearing machine for a spinning machine, in which fluff, etc. generated in the draft section is sucked into a 2-2-1 box by the suction force of a pneumatic fan. The apparatus includes a suction force adjustment means that makes the suction force of the pneumatic fan variable, and a control means that automatically adjusts the suction force adjustment means so that a preset suction force is obtained according to the spinning rotation speed of the spinning machine. It is characterized by having

According to the above description, the control means controls the suction adjustment means in accordance with the spinning speeds of the filament machine and the spinning machine, and automatically adjusts the suction force by the pneuma fan to an appropriate value corresponding to the spinning speed.

Embodiment No. 1 IJ shows the main parts of a high-speed wire forming machine. In the coiler head 1, a coiler disk 3 provided with a coiler tube 2 is rotatably supported. A detection piece 4 is fixed to a predetermined position on the outer circumference of the coiler disk 3, and a detection switch 5 for detecting this detection piece 4 is attached to the coiler head 1.
These constitute the proper position stopping device for the coiler tube 2 disclosed in the above-mentioned Japanese Patent Laid-Open No. 63-196469. The coiler disk 3 is rotated by a main motor 6, which is connected via an inverter 7 to a control means 40, which will be described later. A pair of calender rollers 11 and 12 are arranged above the coiler head 1, and a draft section 13 is further arranged diagonally rearward from above. A top draft roller 1 is installed in the upper part of the draft section 13.
Amen Scryara 15 for cleaning 4 is provided so as to be able to rotate around. Further, the outer peripheries of the bottom draft roller 16 and the calender rollers 11 and 12 are cleaned by rubber pallets 1-17. These calendar rollers 11, which are rotationally driven by the main motor 6,
12. The trough I part 13 etc. are separated from the outside by a cover 18, and a top suction head 20 is installed at the inside upper part of the cover 18 (above the Amen Skryara 15) and at the rear.
and the intake ports 20a, 21 of the bottom suction head 21
a is open, and air intake ports 18a and 18b are opened at the front surface of the cover 18 L1. 1. The bottom suction head 20 and the bottom suction head 21 are connected to the air intake port 23 of the pneumatic box 23 via the main duct 22.
It is connected to a. The pneuma box 23 is divided into a fluff collection chamber 25 and a pneuma fan installation chamber 26 by a filter 24, and the pneuma fan installation chamber 26 includes a pneuma motor 27 and a pneuma fan 28 integrally connected to its rotating shaft. It is set up. The pneumatic motor 27 is a commonly used AC motor, and a general-purpose inverter device 29 connected to the pneumatic motor 27 allows
A suction force adjustment means is configured to vary the rotational speed of the new mafan 28, that is, the suction force.

Next, the control means 40 utilizes a well-known microcomputer and includes an arithmetic processing section 41 and a storage section 42. In a predetermined memory area in the storage unit 42, as shown in FIG.
is remembered as. Trial spinning was carried out at each of the plurality of rotational speeds of the pneumatic motor 27, and at each rotational speed, the spun fleece was not disturbed in the roller part chamber 35, and the fluff, etc. generated in the roller part chamber 35 was reliably removed. The rotation speed is set to provide sufficient suction power. Control means 4
0, an input means 44 is connected to input the rotational speed and pneumatic motor rotational speed into the table 43, and a high speed spinning speed is selected from among the plurality of spinning rotational speeds stored in the table 43. Output rotation speed (e.g. V 1
) is connected to a speed selection means 45 for selecting a low spinning rotation speed (for example, V2) suitable for stopping the coiler tube 2 at an appropriate position. Furthermore, a control program 46 for the main motor 6 and the pneumatic motor 27 is stored in another memory area within the storage unit 42.

This control program 46 outputs a high-speed rotation command to the main motor 6 so as to achieve the high-speed spinning rotation speed V□ selected by the speed selection means 45 at the same time as the machine is started, and also corresponds to this spinning rotation speed v1. pneumatic motor rotation speed R
, is read from the table 43 and output to the inverter device 29 of the pneumatic motor 27, and when a full can signal is input from an auto counter (not shown) during spinning, the main motor 6 is outputted to the main motor 6 so that the spinning rotation speed is low (2). In addition to outputting a low-speed rotation command, the pneumatic motor rotation speed R7 corresponding to this spinning rotation speed V2 is read out, and a command is output to the inverter device 29 to achieve this rotation. When the detection switch 5 of the suitable position stop device detects the detection piece 4 in this low speed rotation state, the machine is stopped.

According to this configuration, when the filament machine is started, the control means 40 first sends a high-speed spinning rotation command to the main motor 6 to operate the machine at the spinning rotation speed V, and the part of the trough 1 is
In step 3, the fleece is troughed, collected by the fleece guide 47, and stored in the can 50 via the coiler tube 2. At the same time, the control means 40 outputs a high-speed rotation command to the inverter device 29 so that the pneumatic motor rotation speed R4 corresponds to the spinning rotation speed V. The air intake port 18 of the cover is
The air taken in from a and 18b passes through the upper and lower intake ports 20
a, flows to 21a. By this airflow, the cleaner debris cleaned by the Amen cleaner 15 and the rubber pad 17 is sucked from the top suction head 20 and the suction head 21 to the bowl 1, respectively. In addition, fluff generated around the fleece guide 47 is also cleaned by the airflow flowing from the air intake port 18a to the bottom suction head 21. The fluff, etc. sucked in this way adheres to the filter 24 of the pneuma box 23.

When the can is full, an auto counter (not shown) outputs a full can signal, which issues a low-speed rotation command to the main motor 6, and the spinning rotation speed V, which is high, is decelerated to the rotation speed V2, which is low.

At the same time, the control means 40 reads out the pneumatic motor rotational speed R7 corresponding to the spinning rotational speed v2 from the table 43 and outputs it to the inverter device 29, and the rotational speed of the pneumatic motor 27 is changed. As a result, the pneumatic fan 28 is rotated at a low speed corresponding to the low speed spinning rotation speed v2 for stopping the coiler tube 2 at an appropriate position, and the pneumatic fan 28 is rotated at a low speed corresponding to the low speed spinning rotation speed v2 for stopping the coiler tube 2 at an appropriate position, and the pneumatic fan 28 is rotated with a weak suction force suitable for a low-speed spinning state in which there is little occurrence of fluff. etc. are sucked in, so they do not disturb the fleece and also save energy.

When changing the high-speed spinning rotation speed of the machine to another speed (for example, ■3) by changing the spinning conditions, the above-mentioned speed selection means 45 may select this spinning rotation speed v1,
When the machine is operated at the spinning rotation speed ■, the pneumatic motor 27 is automatically adjusted to the rotation speed R3 corresponding to this speed, thereby removing fluff, etc. with the appropriate suction force for the spinning rotation speed ■3. It gets sucked in.

Another Embodiment In the wire forming machine shown in FIG. 3, the spinning rotation speed of the machine frame is changed by replacing the drive pulley 51 of the main motor 6. A drive system 52 including this drive pulley 51 drives the calender rollers 11, 12, draft section 13, etc., and a speed detector 1'1 (tacho generator) is installed at the roller 16 of the poly-A trough 1 to detect the spinning rotation speed. etc.)5
5 is connected.

In this embodiment, the suction force adjustment means 29A includes a damper 61 that adjusts the opening degree of the exhaust port 23b of the 221-mass box 23;
It consists of a cylinder device 62 connected to a damper 61. The cylinder device 62 transmits the rotation of the electric motor 63 to the feed screw shaft 65 via the gear train 64.
One end of the damper 61 is connected to the tip of a piston rod 67 that is integral with the screw 1-66.

The roller part chamber 35 is provided with a pressure sensor 70 that measures the static pressure in the chamber, and the measured value from the pressure sensor 70 and the spinning rotation speed of the bottom draft roller 1G from the speed detector 55 are input to the control means 40A. It is intended to be done.

The control means 40A has an arithmetic processing section 41 and a storage section 42 as in the previous embodiment, but the storage section 42 includes a table/13A.
As shown in FIG. 4, a target static pressure value is stored as an amount indicating the spinning rotation speed of the bottom draft roller 16 and an appropriate suction force therefor. Further, the control program 46A for the electric cylinder device 62 is stored, and the target static pressure value corresponding to the spinning rotation speed from the speed detector 55 when the pulley is replaced is read out from the table 43A, and the roller bart control program 46A is stored. The actual static pressure value in the chamber 35 is compared with the standard static pressure value, and when they do not match, the damper 61 is moved in the correcting direction to automatically adjust the opening degree of the exhaust port 23b. . Since the pneumatic fan 28 rotates at a constant rate, widening the opening of the exhaust 1-I+ 23b increases the air volume, increases the static pressure, and strengthens the suction force, which corresponds to a high spinning rotation speed.

The opposite case corresponds to a low spinning rotation speed.

In this embodiment, even if the filter 24 is somewhat clogged with fluff, the opening degree of the exhaust port 23b is controlled so that the actual static pressure value in the roller part chamber 35 becomes "1 standard static pressure value." Therefore, the suction force can be controlled more reliably than in the first embodiment.Furthermore, in this embodiment, the rotation of the main motor 6 is constant and the spinning rotation speed is changed by replacing the pulley. In such a configuration, when stopping the coiler tube at a proper position as in the first embodiment, for example, the low-speed drive motor is connected to the drive system 52 via a clutch, and the main motor and pulley are connected to each other. If a clutch is inserted between the cans and the machine is configured to rotate at a low speed using a low-speed drive motor when the can is full, the opening of the damper can be automatically adjusted according to the spinning rotation speed of the bottom draft roller. Can be adjusted.

Further, in the first embodiment, the spinning rotation speed of the bottom trough 1 to the rollers is detected, and the pneumatic fan is adjusted to an appropriate rotation based on this, or the pneumatic fan is turned in by the control means in the second embodiment. The present invention also includes providing a damper so as to adjust the opening degree of the intake port of the 221 Ma box.

Effects of the Invention As described above, according to the device of the invention, the suction force by the pneuma fan is automatically adjusted to an appropriate suction force preset according to the spinning rotation speed of the spinning machine. Even if the spinning speed is changed due to a change in conditions, the suction force can be adjusted to an appropriate value without manual intervention, reducing the burden on the operator. In addition, when the spinning rotation speed is changed during operation, for example, when decelerating from a high spinning rotation speed to a low spinning rotation speed in order to stop the coiler tube at an appropriate position in a filament machine, this The suction force can be automatically adjusted from strong suction force to weak suction force according to the speed, and the spun fleece is not disturbed at low speeds, and the suction force is adjusted according to the amount of fluff generated, so the power of the pneumatic motor is reduced. This is a useful invention that also saves money.

[Brief explanation of drawings]

Figure 1 shows the main parts of the high-speed filament machine, Figure 2 shows the spinning machine, a table showing the correspondence between lJ5 rotational speed and pneumatic motor rotational speed, and Figure 3
The figure shows another example, and FIG. 4 shows another example of the table. 13 ・Draft section, 23... Pneuma box, 2
7... New Mamotor, 28... New Ma Juan,
29... Inverter device (suction force adjustment means), 40...
・Control means

Claims (1)

[Claims] 1. In a pneumatic clearer device for a spinning machine, which sucks fluff, etc. generated in a draft section into a pneumatic box using the suction force of a pneumatic fan, a suction force adjustment means for varying the suction force of the pneumatic fan, and a spinning machine. A pneumatic clearer device for a spinning machine, comprising: a control means for automatically adjusting the suction force adjusting means so that a preset suction force is achieved according to a spinning rotation speed of the spinning machine.