TWI486498B - Pretreatment apparatus for textile material - Google Patents

Description

Pretreatment device for textile materials

The present invention relates to a pretreatment apparatus for a textile material having a liquid circulation configuration configured with a liquid supply device for conveying a liquid to a work area, a collection tray for unabsorbed liquid, and storage The container delivers liquid to the pumping configuration of the liquid supply.

The invention is described below on the basis of a pre-wet device embodiment, the textile material being presented in mutually parallel yarns is intended to prepare for the application of a sizing application.

When pre-wetting, the liquid used is generally water applied to the textile material. The textile material is guided through a work area formed, for example, by a plurality of cylinders or drums on which the textile material rests. In order to achieve complete wetting of the textile material, excess liquid is used, i.e., the textile material is unable to absorb all of the water so that some of the water will drip into the collection tray. However, this water will be contaminated because it will give off the loose parts of the textile material. Then, the loose portion (for example, fluff or the like) is also in the collection tray, which makes it difficult to reuse the liquid located therein. Usually relatively complicated cleaning or filtration is required here.

The object of the present invention is to be able to facilitate the easy use of excess liquid.

With regard to the initially mentioned pretreatment device, this goal is achieved in that the collection tray is connected via a drain to an overflow connected to the storage container. An overflow tube that is diverged from the collection tray at a predetermined distance below the frame above the collection tray.

This configuration assumes that the contaminants added to the liquid are composed of floating particles, that is, left on the surface of the liquid. However, the liquid under the surface is still clean and can be reused. Therefore, if the liquid under the surface is diverged from the collecting tray, the liquid can be reused because it does not float contaminating particles.

Preferably, the overflow tube has an overflow opening at the upper end that is the same height as the frame side of the collection tray. The overflow pipe forms a plurality of communication pipes with the collecting tray. In these communicating tubes, the liquid is always at the same height (relative to the direction of gravity). If the liquid is continuously supplied to the collection tray, the liquid will overflow sooner or later. When an overflow occurs, the floating contaminating particles are driven past the frame of the collection tray. As a result, an excessive amount of contaminating particles can be prevented from accumulating in the collecting tray. Conversely, the liquid flowing out of the overflow tube does not contaminate the particles because the liquid is taken out from the area under the surface of the collection tray liquid.

Preferably, the overflow tube has an adjustable height overflow edge. The overflow edge defines the height of the overflow opening relative to the direction of gravity. The overflow edge of the adjustable height makes it possible to change the position of the overflow opening, which is somewhat related to the level of the frame edge above the collection tray. In principle, the height of the overflow opening remains the same as the frame edge above the collection tray. However, by adjusting the overflow edge, the amount of liquid discharged across the frame edge of the collection tray can be controlled to some extent. If the overflow edge is set to be slightly higher than the upper frame edge of the collection tray, then the corresponding more liquid will be The collection tray is flowed out of the upper frame of the collection tray, and a corresponding proportion of contaminants are correspondingly flushed out. Conversely, if the overflow edge is set to be slightly lower, then correspondingly less liquid will flow over the rim of the collection tray and out of the collection tray, thus correspondingly flushing out less contaminants. However, it also "losses" less liquid. By adjusting the overflow edge, the liquid circulation configuration can be set for different types of textile materials. Some textile materials are more polluted than other textile materials. In the case of a large degree of pollution, the position of the overflow edge is higher than in the case where the textile material is less polluted.

Preferably, the overflow tube has a screwed-on bushing at its upper end. The level of the overflow edge can be adjusted by rotating the bushing on the overflow tube. This adjustment is very sensitive because the bushing is screwed onto the overflow tube.

The drain pan has a bottom and it is preferred to configure the drain at the bottom. With this configuration, it is virtually impossible for the floating contaminating particles to enter the overflow tube as long as the liquid is in the collecting tray. Since the liquid in the bottom region is always removed, a continuous circulation of the liquid in the collection tray can be achieved to some extent.

It is preferred that the overflow tube be disposed outside the collection tray. This makes it easier to collect the liquid flowing out of the overflow pipe to be supplied to the storage container.

Preferably, the collection tray has an overflow tray attached to a contaminant removal device. The spill tray receives liquid that is over the rim of the collection tray and thus is filled with particles. The contaminant removal device can extract these from the liquid Contaminated particles.

Preferably, the contaminant removal device has a filtration device coupled to the storage container. The filter device is a simple device for removing contaminating particles of the liquid. At the outlet of the filter device, the liquid can then be utilized as long as it has a degree of purification that can be re-supplied to the liquid supply device.

Preferably, the storage container has an inlet having a fill level controller and a first volume flow sensor. Therefore, it is possible to determine how much liquid is transferred to the first approximation of the textile material. The fill level controller ensures that the storage container is no longer filled with too much liquid, since the proportion of liquid supplied from the collection tray via the overflow tube can be considered. Therefore, the volumetric flow sensor can determine how much liquid to refill.

In this case, the overflow tray has a second volume flow sensor as preferred. With this second volume flow sensor, it is possible to determine the proportion of liquid flowing out of the frame of the collection tray. This ratio is then subtracted from the volumetric flow determined via the inlet of the storage vessel. In principle, the difference is the amount of liquid that has been absorbed by the textile material.

The invention also relates to a liquid circulation configuration for a pretreatment apparatus as described above.

1‧‧‧Pre-wet device

2‧‧‧Textile materials

3‧‧‧First drum

4‧‧‧second drum

5,7‧‧‧ nip

6‧‧‧ Third drum

8‧‧‧First spray device

9‧‧‧Second spray device

10‧‧‧ pump

11‧‧‧Liquid

12‧‧‧ storage container

13,23,36‧‧‧pipe

14‧‧‧Filling water level controller

15‧‧‧Maximum Sensor

16‧‧‧minimum sensor

17‧‧‧Filling valve

18‧‧‧ Waterway

19, 37‧‧‧ volume flow sensor

20‧‧‧Collection tray

21,27‧‧‧Drainage pipe

25‧‧‧Upper side

26‧‧‧Overflow

28‧‧‧Drainage line

29‧‧‧Second volume flow sensor

30‧‧‧ overflow edge

31‧‧‧ Bushing

32‧‧‧Yarn

33‧‧‧Overflow

34‧‧‧dotted line

35‧‧‧Contaminant removal device

The invention is described below in terms of a preferred exemplary embodiment in conjunction with the accompanying drawings.

Figure 1 is a high-level schematic view of a pretreatment device for textile materials, and Fig. 2 is an enlarged detail view of Fig. 1.

Fig. 1 shows a pretreatment device in the form of a pre-wet device 1 for a textile material 2 supplied with yarns arranged side by side. Pre-wet is used here, for example, to prepare a sizing. In this case, the textile material 2 is supplied via the first drum 3. The first drum 3 and the second drum 4 form a nip 5 through which the textile material 2 is guided. Likewise, the second drum 4 and the third drum 6 form a nip 7 which likewise guides the passage of the textile material. A first spray device 8 is arranged at the inlet of the nip 5 and a second spray device 9 is arranged at the inlet of the second nip 7. Both of the spray devices 8, 9 supply the liquid 11 from the storage container 12 via the pump 10. For this purpose, the pump 10 is connected via a line 13 to the spray devices 8, 9.

The storage container 12 has a fill level controller 14 coupled to a maximum value sensor 15 and a minimum value sensor 16. The fill level controller 14 activates the fill valve 17 of the water path 18 such that the fill level of the liquid 11 in the storage container 12 is always at the upper limit specified by the maximum value sensor 15 and the lower limit specified by the minimum value sensor 16 Move between values.

The volumetric flow sensor 19 is located on or in the waterway 18. The volume flow sensor 19 determines the volume of liquid 11 supplied to the storage container 12.

A certain excess of liquid 11 is applied to the textile material 2. Therefore, the textile material 2 cannot absorb all the liquid. The excess liquid flows or drip down and concentrates on the collection tray 20.

The collection tray 20 has a drain 21 disposed at the bottom 22 of the collection tray 20. The drain pipe 21 is connected to the outside of the collecting tray 20 via a line 23 Overflow tube 24.

The collection tray 20 has an upper frame edge 25. The liquid flowing out of the collecting tray 20 over the upper frame edge 25 flows into a pan overflow 26 provided with at least one drain pipe 27 accordingly. The drain 27 is connected to a drain line 28. The second volume flow sensor 29 determines the volumetric flow rate through the discharge line 28 out of the overflow tray 26.

As seen in Figure 2, the overflow tube 24 has an overflow edge 30 that is configured to have the same height (in the direction of gravity) as the frame edge 25 above the collection tray 20. The "same height" should not be considered to have a mathematically precise meaning here because the overflow edge 30 of the overflow tube 24 is disposed on the bushing 31 screwed onto the upper end of the overflow tube 24. In this regard, the yarn 32 is shown in a schematic view. When the bushing 31 is rotated against the overflow tube 24, the level of the overflow edge 30 changes. The overflow edge 30 defines an overflow opening.

The liquid flowing over the overflow edge 30 is connected to the inflow overflow portion 33 of the storage container 12.

The collection tray 20 and the overflow tube 24 together form a communication tube system. In this system, the liquid 11 is present in such a way that it has the same height everywhere. Figure 2 illustrates this same height with dashed line 34.

The liquid that is not absorbed by the textile material 2 and flows into the collecting tray 20 can escape the collecting tray 20 again by two routes. Part of the liquid will flow over the upper frame edge 25 of the collection tray 20 and at the same time at least partially flood the contaminating particles over the upper frame edge 25 and into the overflow tray 26. The other portion is discharged through the overflow edge 30 of the overflow tube 24. This portion is derived from the bottom region of the collection tray 20. The liquid there is not floating particles and therefore heavy New use. Therefore, it is collected by the overflow portion 33 and returned to the storage container 12 and can be re-supplied to the spray devices 8, 9 by means of the pump 10.

By adjusting the overflow edge 30 it is now possible to set the ratio of the liquid passing over the frame edge 25 of the collection tray 20 to the portion of the overflow edge 24 over the overflow tube 24.

For example, if the overflow edge 30 is positioned such that it is higher in the direction of gravity than the upper frame edge 25 of the collection tray 20, such as 1 millimeter or 2 millimeters, then a greater portion of the liquid will pass over the upper frame edge 25 of the collection tray 20. Flow out. Conversely, if the overflow edge 30 is positioned such that it is lower than the upper frame edge 25 of the collection tray 20, i.e., the height is lower, a larger portion of the liquid will flow over the overflow edge 30.

In various cases, this setting can be made in accordance with the textile material 2. In the case of a textile material 2 having a relatively high degree of contamination or a textile material 2 in which the contaminated particles are relatively easy to fall off, the overflow edge 30 can be set to a higher height than the textile material 2 having a less polluted degree or less contaminated particles.

With these two volume flow sensors 19, 29, it is possible to determine relatively accurately how much liquid has been transferred to the textile material 2. What is needed for this purpose is to form a difference in volumetric flow through the water passage 18 and through the discharge conduit 28.

It is also possible to process at least part of the liquid flowing out through the discharge line 28 so that it can be reused. For this purpose, the discharge line 28 is connected to a contaminant removal device 35, for example, which may have a filtering device. Contaminant removal device 35 is then connected to storage vessel 12 via line 36. The volumetric flow sensor 37 is configured in or on the line 36. In order to judge with liquid For the weight of the textile material 2 of 11, the volumetric flow rate determined by the volumetric flow sensor 37 is necessary to increase the difference explained above. However, this is very likely.

It is of course also possible to use the illustrated liquid circulation with the storage container 12, the pump 10, the spray device 8, 9 (or other liquid supply device), the collection tray 20 and the overflow tube 24 to be arranged in a liquid which is intended to be cyclically filled with floating contaminating particles. Or other tasks for some other liquids. In any case, the uncontaminated liquid in the lower area of the collection tray 20 is removed here. This portion of the liquid can then be supplied back to the storage container 12.

Since this configuration only extracts floating particles, there may still be other contents in the liquid. For example, if the textile material 2 is formed of a spun yarn having lignin or pigment, the lignin or pigment is re-supplied when the textile material 2 is washed out by the liquid 11.

1‧‧‧Pre-wet device

2‧‧‧Textile materials

3‧‧‧First drum

4‧‧‧second drum

5,7‧‧‧ nip

6‧‧‧ Third drum

8‧‧‧First spray device

9‧‧‧Second spray device

10‧‧‧ pump

11‧‧‧Liquid

12‧‧‧ storage container

13,23,36‧‧‧pipe

14‧‧‧Filling water level controller

15‧‧‧Maximum Sensor

16‧‧‧minimum sensor

17‧‧‧Filling valve

18‧‧‧ Waterway

19, 37‧‧‧ volume flow sensor

20‧‧‧Collection tray

21,27‧‧‧Drainage pipe

22‧‧‧ bottom

24‧‧‧Overflow tube

25‧‧‧Upper side

26‧‧‧Overflow

28‧‧‧Drainage line

29‧‧‧Second volume flow sensor

33‧‧‧Overflow

35‧‧‧Contaminant removal device

Claims (11)

A pretreatment apparatus for a textile material having a liquid circulation arrangement configured to transport a liquid to a liquid supply device in a work area, a collection tray for unabsorbed liquid, and a a pumping arrangement for transporting liquid to the liquid supply device, wherein the collection tray is connected via a drain to an overflow tube having an overflow connected to one of the storage containers, the drain being in the collection tray One of the predetermined distances below the upper frame is forked by the collection tray. The pretreatment apparatus of claim 1, wherein the overflow pipe has an overflow opening at an upper end thereof that is configured to have the same height as the upper frame edge of the collection tray. The pretreatment apparatus of claim 2, wherein the overflow tube has an adjustable height overflow edge. A pretreatment apparatus according to claim 3, wherein the overflow pipe has a screwed-on bushing at an upper end thereof. The pretreatment apparatus according to any one of claims 1 to 4, wherein the discharge tray has a bottom, and the drain line is disposed in the bottom. The pretreatment apparatus according to any one of claims 1 to 4, wherein the overflow tube is disposed outside the collection tray. The pretreatment apparatus of any one of claims 1 to 4, wherein the collection tray has an overflow tray connected to a contaminant removal device. The pretreatment device of claim 7, wherein the contaminant removal device has a filtration device coupled to the storage container. The pretreatment apparatus of any one of claims 1 to 4, wherein the storage container has an inlet having a fill level controller and a first volume flow sensor. The pretreatment apparatus of claim 9, wherein the overflow tray has a second volume flow sensor. A liquid circulation configuration device for use in a pretreatment apparatus according to any one of claims 1 to 4.