JP3359153B2 - Cloth speed control method and device in airflow treatment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for controlling a cloth speed in an airflow treatment machine for textile products such as scouring, dyeing and texture processing, in which a rope-shaped cloth is made endless and circulated and rotated.

[0002]

2. Description of the Related Art Conventionally, a cloth speed control method in an airflow dyeing machine has determined the cloth speed by controlling the rotation speed of a drive reel, controlling the jet pressure or flow rate of an airflow jetting unit, or both.

[0003]

In the above-described method of controlling the cloth speed in the airflow treating machine for textile products, even if the conditions are set in the initial stage, the pressure changes with the temperature change as the process proceeds.

[0004] The jetting force from the airflow jetting unit changes depending on the temperature and pressure of the gas to be jetted, that is, the air, and the cloth speed also greatly changes. Therefore, constant cloth speed control is necessary.
Conventionally, the cloth speed is controlled by controlling the number of revolutions of the circulation blower, which is the control of the injection amount of the airflow injection unit, the flow rate control using a valve on the discharge side, or the rotation control of the drive reel. There's a problem.

[0005]

An annular treated fabric transfer passage is formed in a closed tank by a transfer pipe for transferring a fiber product (hereinafter, referred to as a fabric) in a straight state and a storage section for transferring the fiber product in a meandering state. In a method in which an endless fabric is erected in the passage and circulated and rotated mainly by the jet force of the airflow to perform processing, a predetermined fabric speed is set in advance, and when the actual fabric speed is lower than the set fabric speed, It is a cloth speed control method in an airflow treatment device, wherein the cloth speed is controlled only by controlling the pressure in the processing tank, by increasing the pressure in the tank, and conversely, when the pressure is high, reducing the pressure in the tank. In order to carry out this, an annular treated fabric transfer passage is formed in a closed tank by a transfer pipe for transferring a fiber product (hereinafter, referred to as a fabric) in a straight state and a retaining portion for transferring the fiber product in a meandering state. Endless treated fabric is installed on the In a device that performs processing by circulating and rotating mainly by an injection force, a cloth speed setting device and a cloth speed detector are provided, and when the actual cloth speed calculated by the cloth speed detector is lower than the set cloth speed, the tank pressure is reduced. The cloth speed control device in the airflow treatment device is provided with a pressure adjusting device for lowering the pressure in the tank when the pressure is higher.

[0006]

According to the cloth speed control of the present invention, the cloth speed is set in the cloth speed setting device, and as the processing proceeds, the pressure changes with the temperature change. Then, the cloth speed changes due to the change in the injection force, so the required time for each circulation is measured using a cloth speed detector, and if the cloth speed becomes faster than the set value, the pressure in the tank is reduced and conversely If the pressure is slower than the set value, the pressure in the tank is controlled so as to increase the pressure in the tank, and the cloth speed is maintained at the set value only by this pressure control.

[0007]

An embodiment will be described with reference to the drawings. FIG. 1 shows an embodiment of the present invention, in which reference numeral 1 denotes a treatment cloth joined endlessly, 2 denotes a treatment tank, and 1A denotes a magnet sewn to a connection portion of the cloth 1. The processing liquid circulating pump 4 is connected to the bottom of the cloth storage section 2A of the processing tank 2 by a suction pipe 5, and is connected to an air flow discharge pipe 12 from a discharge pipe 7 through a heat exchanger 6 to a fluid injection section 14. ing. The gas circulation blower 9 is connected to the upper portion of the cloth storage section 2A of the processing tank 2 by a suction pipe 10, connected to a fluid ejection section 14 by a discharge pipe 12 via a heat exchanger 11, and connected to the fluid ejection section 14.
From 4, a mixed fluid in a state in which the processing liquid is atomized into gaseous air is injected.

The cloth 1 is pulled up by the jetting force of the fluid jetting nozzle 14A from the pulling-up portion 2B of the stagnation portion 2A, which moves in a meandering state, is pressure-fed to the cloth transfer pipe 15, and is sent to the inlet-side inclined portion 2C of the processing tank. It is open from the cloth transfer tube 15.

Reference numeral 3 denotes a magnet detector, which detects passage of a magnet attached to a connection portion of the circulating rotating cloth 1, sends a detection signal to the controller 16, and provides information as a circulation time for each time. are doing.

Reference numeral 17b denotes a temperature detector for the circulating gas, 17a
Is a circulating liquid temperature detector. 19 is an automatic valve for pressurizing the compressed air to the processing tank, and 20 is an automatic valve for degassing the processing tank pressure, which is a component of the pressure adjusting unit operated by the controller 16.

The controller 16 has a setting device for setting the cloth speed. The cloth speed set value is compared with the circulation time and the actual cloth speed calculated from the cloth feeding length to control the following tank pressure. I have. Reference numeral 21 designates a dye, a chemical, or the like prepared in the addition tank, which is added to the processing tank 2 by an addition pump 22 through an addition valve 23.

The post-addition treatment tank is closed and pressurized to a predetermined pressure through a pressure valve 19, and the circulating fluid is supplied to the heat exchanger 6,
The temperature is raised at 11. As the temperature raising process proceeds, the temperature and pressure of the circulating fluid increase, the density of air increases, the jetting force injected from the airflow jetting unit increases, and the cloth speed increases. Control in the direction.

At the time of cooling, the temperature and pressure of the circulating fluid decrease, so that the density of the circulating gas, ie, the air, decreases, so that the jetting force decreases.

The pressure in the tank is controlled to decrease when the temperature is raised, and is controlled to increase when cooling. The pressure in the tank is controlled by using the saturated steam pressure at that temperature as the lower limit of the pressure in the tank. FIG. 2 shows another embodiment of the present invention.

The fabric 1 is pulled up by the drive reel 24 from the pulling-up portion 2B of the stagnant portion 2A which moves in a meandering state, is pressure-fed in the cloth transfer pipe 15 by the jetting force of the fluid jetting portion 14, and is fed to the inlet side of the processing tank. It is opened at the inclined portion 2C, moves along the inclination, and is sent to the accumulation portion 2A.

[0016]

Since the cloth speed control device of the present invention is constructed as described above, the cloth speed is controlled by controlling the pressure in the processing tank, that is, by increasing the temperature and pressure of the circulating fluid. As the density increases, the jetting force from the airflow jetting unit increases, and the cloth speed increases, the pressure in the tank is controlled to decrease.When cooling, the temperature and pressure of the circulating fluid decrease, and the fluid circulates. Since the density of the air, which is the gas, decreases, the jetting force decreases and the cloth speed decreases, the pressure in the tank is increased, and the circulation time (cloth speed) of any treated cloth is controlled only by controlling the pressure in the tank. it can.

[Brief description of the drawings]

FIG. 1 is a system sectional view showing an embodiment of the apparatus of the present invention.

FIG. 2 is a system sectional view showing another embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Fabric 1A ... Magnet 2 ... Airflow treatment machine
2A: Reservoir tank 2B: Lifting part 2C: Inclined part 3: Detector
4 Circulating pump 5 Suction pipe 6 Heat exchanger 7 Discharge pipe
9: Circulating blower 10: Suction pipe 11: Heat exchanger 12: Discharge pipe 14: Air flow injection unit 14A: Air flow injection nozzle 1
5 Cloth transfer pipe 16 Controller 17 Temperature detector 18 Pressure detector 19 Pressure valve 20 Degassing valve 22 Addition pump 21 Addition tank 22 Addition pump 23 Addition valve 24 Drive reel

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) D06B 3/36

Claims (2)

(57) [Claims] An annular processing cloth transfer passage is formed in a closed tank by a transfer pipe for transferring a fiber product (hereinafter referred to as a cloth) in a straight state and a storage section for transferring the fiber product in a meandering state. In a method of processing by laying an endless cloth and circulating and rotating mainly by the jet force of the air flow, a predetermined cloth speed is set in advance, and when the actual cloth speed is lower than the set cloth speed, the pressure in the tank is reduced. A cloth speed control method for an airflow processing device, wherein the cloth speed is controlled only by controlling the pressure in the processing tank by increasing the pressure, and conversely, when the pressure is high, the pressure in the tank is reduced. 2. An annular treated fabric transfer passage is formed in a closed tank by a transfer pipe for transferring a fiber product (hereinafter referred to as a fabric) in a straight state and a storage portion for transferring the product in a meandering state. In an apparatus in which an endless processing cloth is laid, and processing is performed by circulating and rotating mainly using the jetting force of an airflow, an actual cloth speed calculated by a cloth speed detector is provided with a cloth speed setting device and a cloth speed detector. A pressure adjusting device for increasing the pressure in the tank when the pressure is lower than the set cloth speed and decreasing the pressure in the tank when the pressure is higher than the set cloth speed.