JPS6221901B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for automatic cleaning and changing dye liquid in a dyeing padder, and more specifically, to a method and an apparatus for automatically cleaning and changing the dye liquid in a dyeing padder. The present invention relates to an automatic washing method for a dyeing padder and a means for changing the dyeing liquid, which can be greatly shortened compared to conventional padders.

B. Prior Art Dyeing padders are used to dye continuously supplied fabrics. In the dyeing process using dyeing padders, it used to be the case that large lots of one color, as long as 10,000 meters, were dyed in large lots, but recently the dyeing process has been adapted to accommodate the production of a wide variety of products in small lots. Because of the dyeing lot
It is often set at around 500 to 1000 meters. The moving speed of the fabric in the dyeing padder is approximately 60 to 100 meters/minute, so if the dyeing lot is set to 600 meters per color, the dyeing time will be only 6 to 10 minutes. do not have. On the other hand, after finishing processing for one dyeing lot, the dye bath of the padder is cleaned,
It usually takes about 10 to 15 minutes to supply a new dye solution for a subsequent dyeing lot into a dye bath that has been cleaned. That is, the preparatory work time is nearly twice as long as the dyeing operation time, and therefore the productivity of the padding process is significantly impaired. However, some technical proposals have been made for the purpose of solving the problems associated with such conventional pads. For example, in the Sendai Keizai Shimbun published on January 1, 1981, the body of the padder and the inside of the dye bath are automatically cleaned during the approximately 3 minutes that the guiding cloth connecting between the fabrics passes through. A padder is described which is designed to carry out dyeing preparation operations such as supplying fresh dye liquor and cleaning the guide rollers of the dryer. This padder is composed of a two-stage reversible dye bath lifting device, a solenoid valve for switching between liquid supply and cleaning, and a microprocessor. Each is configured to occupy a different operating position. By attaching such an operating position exchange mechanism to the dye tank, the preparation time for the padder was considerably shortened compared to a conventional padder, but this padder did not require repeated use of a single dye tank. Because of the method adopted, it was impossible to overlap the washing time and the supply time of new dye solution, and it was virtually impossible to shorten the preparatory work time to 3 minutes or less.

B. Object of the Invention The main object of the present invention is to provide automatic cleaning and dye solution changing means for a dyeing padder, which greatly reduces the time required for dyeing preparation work.

Another main object of the present invention is to provide a novel dyeing padder equipped with a dye bath moving mechanism that alternately reciprocates between a dyeing position and a preparation liquid supply position in pairs.

C. Structure of the Invention The present invention provides a method for dyeing at a dyeing position D in a dyeing process of a patuding method in which a fabric 3 is continuously supplied to a dye tank 2 disposed in the main body of a patuder 1 and dyed. Dye liquid tanks 2 and 2' are arranged in pairs between the two preparation liquid supply positions P ₁ and P ₂ provided on both sides of the dyeing position D below the dyeing position D. After the pad dyeing of the fabric 3 with the dye liquor in the dye liquor tank 2 is completed, an operation liquid supply for supplying the dye liquor to the first dye liquor tank 2, the main body of the padder 1, and the first dye liquor tank 2. The inside of the pipe line 6 is first cleaned, and then the first dye bath 2 is moved to the first preparation liquid supply position _P1 , and at the same time, the second dye bath 2' is moved to the second preparation liquid supply position P1. liquid position
Move from P ₂ to dyeing position D, and transfer to the second dye tank 2'.
While the fabric 3 is being dyed with the dye liquor in the first dye liquor tank 2, the first dye liquor tank 2 located at the first preparatory liquor supply position is secondly cleaned, and then the first dye liquor tank 2 is washed. The first gist is a method for automatically cleaning the dyeing padder and replacing the dyeing solution by supplying a new dyeing solution to the dyeing padder and completing the preparation operation for returning to the dyeing position D.

The present invention also provides a dyeing padder that continuously supplies the fabric 3 to a dye bath 2 disposed in the main body of the padder 1 to carry out dyeing processing, at a dyeing position D and below the dyeing position D. A pair of dye liquid tanks 2, 2' that alternately move back and forth between two preparation liquid supply positions P ₁ and P ₂ provided on both sides of D, and the lower part of the main body of the powderer 1. The dye tank 2, 2' provided in
horizontally moving means HT, and when the first dye liquor tank 2 is at the first preparation liquid supply position _P1 , it is moved up and down to the second dye liquor tank 2' between the dyeing position D and the horizontal moving means HT. movement, and when the second dye bath 2' is at the second preparation liquid supply position _P2 , the first dye bath 2 is moved up and down between the dyeing position D and the horizontal movement means HT. the washing liquid and washing water supply pipes 4 and 5 disposed at the two preparation liquid supply positions P ₁ and P ₂ , respectively, and the horizontal movement from the dyeing position D. A second means for spraying a shower of washing water into the main body of the said padder 1, which is provided with the dye baths 2, 2' lowered onto the means HT, and the fabric guide rolls 17;
The second gist provides an automatic cleaning and dye solution changing device in a dyeing padder, which is constituted by a washing water supply pipe 26 and an operating liquid supply pipe 6 disposed in the main body of the padder 1. That is.

D. Example FIG. 1 is a partially cutaway side view illustrating the overall structure of the dyeing padder according to the present invention, and FIGS. FIG. 2 is an explanatory diagram of the relative positions of two reciprocating dye baths.

In FIG. 1, the first dye tank 2 is moved to the dyeing position by engaging the support pin 7 provided on the side body of the dye tank with the lifting means E of the dye tank. It is suspended in D. On the other hand, Patsuda 1
At the bottom of the main body, there is a horizontal movement means HT for the dye bath, which is composed of a reciprocating piston mechanism 8 and a dye bath support plate 9 that is driven by the reciprocating piston mechanism and reciprocates horizontally on a support rail 9'. are provided, and a first preparation liquid supply position P ₁ and a second preparation liquid supply position P ₂ are formed at the ends of the movement path of the horizontal movement means HT, respectively. In the state shown in FIG. 1, the second dye bath 2' is located at the second preparation liquid supply position _P2 . The lifting means E of the dye bath is the padder 1.
a second reciprocating piston mechanism 11 swingably supported on the frame via a fixed bracket 10;
a pivot 12' fixed to the frame of the packer 1;
A locking metal fitting 12 of the support pin 7 is supported to be swingable about the pivot shaft 12', has one end rotatably fitted loosely into the tip of the piston rod of the second reciprocating piston mechanism 11, and has the other end a locking fitting 12 for the support pin 7. It is formed from an L-shaped lever 13 arranged with.

On the other hand, above the two preparation liquid supply positions P ₁ and P ₂ , a pair of dyeing supply pipes 4 and 4 covered with a canopy 14 and washing water supply pipes 5 and 5 are arranged respectively. A secondary washing mechanism is formed, and correspondingly, an operating liquid supply pipe 6 is provided on the upper side of the main body of the packer 1 for replenishing new washing liquid into the dyeing liquid tank 2 located at the dyeing position D. A receiving plate 25 is provided between the operating liquid supply pipe 6 and the dyeing position D as a guide member for the dye liquid. Also Patsuda 1
A pair of padding rolls 15 and 15' are provided above and rotatably supported. Above the padding rolls, the main body of the padder 1, especially the padding rolls, is cleaned when cleaning. A water supply pipe 16 is provided for supplying water. Furthermore, on the side of one of the tucking rolls 15, there is a guide roll 1 for guiding the fabric 3.
A washing water supply pipe 26 is provided for the purpose of washing the front part of the main body of the packer 1 including the powder body 7 . The cleaning water supply pipe 26 has a plurality of water fountains 18 opened at both ends of the padder 1 in the width direction, and the cleaning water sprayed from these openings dyes the guide roll 17 and one lot of fabric. A primary cleaning mechanism is formed to clean the inside of the dye bath 2 after finishing processing. On the other hand, in the padder 1, corresponding to the primary washing mechanism, there is an upper surface of the introduction path for the fabric 3 from diagonally below the washing water supply pipe 26 toward the inside of the dye bath 2 located at the dyeing position D. A cover plate 19 is attached which extends overly.

For the above-mentioned dye liquid supply pipe and washing water supply pipe, after switching the dye liquid flow path, cleaning and air purging of the inside of the dye liquid supply pipe, and washing water jetting have been completed. In order to perform air purging inside the washing water supply pipe later, switching valves 20 and 24 switch the flow paths between the dye solution and washing water, and between the washing water and air.
are included in each. In FIG. 1, reference numeral 21 indicates a liquid level control valve incorporated in the operating liquid supply pipe 6 for the purpose of controlling the level of washing liquid in the dye bath 2, and reference numeral 22 indicates a liquid level control valve. , shows a drain valve for discharging the used dye liquor and wash water from the dye liquor tank 2 or 2' during primary washing or secondary washing. In the illustrated embodiment, four dye liquid tanks 23 storing unused dye liquid are connected to the padder 1 via a plurality of dye liquid switching valves 27 and 28, and these dye liquid tanks The unused dye liquid stored in the dye liquid tank 23 is transferred to the dye liquid tank 2 and the dye liquid tank 2 at the dyeing position D and the preparation liquid supply positions P ₁ and P ₂ by switching the flow path by a control signal from an automatic control device (not shown). 2' are selectively supplied one type at a time.
The above-mentioned automatic control device includes an automatic control device such as a microprocessor as a means for regulating the timing of the switching of the switching valves 20, 24 and the dye liquor switching valves 27, 28, as well as the horizontal movement and vertical movement of the dye liquor tanks 2, 2'. In addition, in order to continuously apply pad dyeing to a plurality of dyeing lots according to a preset dyeing program, the automatic control device can be installed at the joint between the fabric 3 and the guide fabric. It is also possible to connect a seam detection sensor (not shown) to detect this.

Hereinafter, the method of the present invention will be explained in detail with reference to the attached FIGS. 2 to 5. First, in the state shown in FIG. 2, the fabric 3 introduced into the packer 1 is introduced into the dye bath 2 which is suspended and supported at the dyeing position D by guide rolls 17, After being immersed in the dye liquid injected into 2, the subsequent guide
Patsuding Roll 1 guided by Roll 17
5,15', excess dye liquid is removed, and the dye is being supplied to a subsequent process (not shown) such as a drying process. At this time, the second dye bath 2' located at the second preparation liquid supply position P ₂ below the dye bath 2 is secondarily cleaned by the wash water supplied from the wash water supply pipe 5. Thereafter, a dye liquor preselected in accordance with the dyeing program is being supplied into the dye liquor tank via the dye liquor supply pipe 4. Moreover, at this time, since the dye liquor tank 2 is absent at the first preparation liquid supply position P ₁ , the dye liquid supply pipe 4 provided at this preparation liquid supply position P ₁ is connected to the dye liquid tank 23 . is shut off by the switching valve 28. During this time, the interior of the dye liquor supply pipe 4 completes washing with washing water and air purging with a compressed air flow by switching the switching valves 20 and 24, and prepares for the next supply of new dye liquor. On the other hand, the dye liquid from the operating liquid supply pipe 6 flows into the first dye liquid tank 2 suspended at the dyeing position D via the receiving plate 25 and is controlled by the liquid level control valve 21. The fabric 3 is impregnated with the dye while maintaining a substantially constant height of the dye solution level. When pad dyeing for one dyeing lot is completed, the supply of dye liquor from the operating liquid supply pipe 6 is cut off by operating the switching valve 27 of the selected dye liquid tank 23, and the operation liquid supply pipe is switched off. 6
is communicated with the switching valves 20 and 24. In this state, the dye liquor tank 2 is lowered onto the dye liquor tank support plate 9 by activation of the lifting means E as shown in FIG. Primary cleaning is performed using cleaning water supplied from That is, the wash water switching valve 24 is selectively opened and the wash water is supplied to the areas contaminated with the dye liquid (front guide rolls, etc.) through the plurality of water fountains 18 branched from the wash water supply pipe 26. At the same time, cleaning water is also jetted from the operation liquid supply pipe 6 to clean the receiving plate 25, dye liquor tank 2, etc. After the cleaning is completed, the cleaning water switching valve 24 is closed, the corresponding switching valve 20 for compressed air flow is selectively opened, and the operating liquid supply pipe 6 and the cleaning water supply pipe 26 are purged with air. still,
In the above-mentioned primary washing, in order to speed up the discharge of the used dye liquor, the drain valve 23
It is preferable to open it. In addition, in order to reduce the washing time to the maximum, it is also possible to move the first dye bath 2 from the dyeing position D to the dye bath support plate 9 at the same time as the pad dyeing for one dye lot is completed.
It is desirable to start cleaning just before the descent begins. Furthermore, during the primary cleaning, it is preferable to repeat cleaning and air purging of the inside of the liquid supply pipe 6 intermittently multiple times to more completely clean the inside of the pipe. This repeated washing is carried out in order to prevent the next new dye liquor from becoming even slightly contaminated by residual dye liquor from the previous one. Further, in a preferred embodiment of the present invention, while the first dye bath 2 is being subjected to primary washing, the washing water supplied from the water supply pipe 16 is used to wash the padding rolls 15, 15'.
It is also possible to wipe off the dye adhering to the guide rolls, etc. in a subsequent process, for example, a drying process, by washing the guide rolls and feeding a wet guiding cloth at the same time.

When the primary washing is completed, as shown in FIG. 4, the horizontal moving means HT is activated to lower the first dye tank 2 supported on the dye tank support plate 9 below the dyeing position D. First preparatory supply position from position P ₃
P ₁ , and at the same time move the second dye bath 2', into which new dye liquid is being injected, to the second preparation liquid supply position.
It is horizontally moved from P ₂ to a raised position below the staining position D (same position as the lowered position P ₃ ). The second dye bath 2', which has been moved to the raised position _P3 in this way, is then lifted to the dyeing position D using the raising stroke of the lifting means E, as shown in FIG. Then, the fabric 3 is introduced inside the dyeing process, and the dyeing process is restarted according to the same procedure as described above.

While pad dyeing according to a new dyeing program is in progress with the dye liquor in the second dye liquor tank 2', the first dye is transferred to the first preparatory liquor supply position _P1 . In the liquid tank 2, secondary washing and new dye liquid are injected in the same way as in the second preparatory liquid supply position _P2 . That is, secondary cleaning of the dye bath 2 with wash water supplied from the wash water supply pipe 5 provided at the first preparation liquid supply position _P1 , and air purging in the pipe with a compressed air flow. After this is completed, a new dye solution is supplied into the dye solution tank 2 from the dye solution supply pipe 4, and the preparation operation for returning to the dyeing position D is completed. On the other hand, during this period, the dye liquor supply pipe 4, which has finished supplying the dye liquor at the second preparatory liquor supply position _P2 , is transferred to the preparatory liquor supply position _P1 while the dye liquor tank 2' is absent. Cleaning and air purging are carried out in the same manner as when cleaning the dye, in preparation for the next dyeing program.

As can be understood from the above explanation, the two dye baths 2, 2' are moved to the dyeing position D and the first and second preparation liquid supply positions _P1 , P using the elevating means E and the horizontal moving means HT. ₂ , while the fabric 3 is being dyed with the dye liquor in one dye liquor tank (for example, dye liquor tank 2), the other dye liquor in the preparation liquor supply position is dyed. The tank (for example, the dye tank 2') can be subjected to secondary cleaning and injection of new dye solution.

In implementing the present invention, the cover plate 19
This prevents the dye solution from foaming at the introduction of the fabric into the dye baths 2 and 2', and also prevents droplets scattered on the fabric 3 before being dyed to fall and cause dyeing spots. The canopy 14 functions as a fabric protection member to prevent the dyeing from occurring, and the canopy 14 also serves as a fabric protection member to prevent washing water or the previous dyeing lot from being stored in the dye bath 2 or 2' at the preparation liquid supply position _P1 or _P2 . It functions as a dye liquid protection member that prevents the dye liquid from dripping and contaminating the new dye liquid.

E. Effects of the Invention As is clear from the above explanation, according to the method of the present invention, part of the cleaning time of the dye bath and the injection time of new dye solution can be made to overlap with the fabric dyeing operation time. The working time can be reduced to about 1 to 2 minutes per lot.
Along with this, by connecting the fabrics to be redyed and the fabrics with a guide cloth of an appropriate length,
The fabric can be run continuously without stopping the entire process. Moreover, the length of the guide cloth required in this case is sufficient for running for 1 to 2 minutes, so that the loss of the guide cloth can be reduced. Therefore, the productivity of the padding process can be maintained at a good level even in the recent dyeing process of small lots of various products.

Furthermore, since the device of the present invention has a simple structure in which a means for raising and lowering the dye bath and a means for horizontally moving are attached to the main body of the padder, there is no risk of a significant increase in the manufacturing cost of the padder. Operating efficiency can also be maintained at an extremely high level.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view illustrating the overall structure of the dyeing padder according to the present invention, and FIGS. 2 to 5 show the dyeing padder which alternately reciprocates between the dyeing position and two preparation liquid supply positions. It is an explanatory view of the relative position of two dye liquid tanks. 1...Padder, 2,2'...Dye tank, 3...Fabric,
D...Dyeing position, _P1 , _P2 ...Preparation liquid supply position, 6...Operation liquid supply pipe, 4...Dye liquid supply pipe, 5...Washing water supply pipe, E...Dye liquid tank lifting means, HT ...Means for horizontal movement of the dye bath.

Claims (1)

[Scope of Claims] 1. In the pad dyeing process, on both sides of the dyeing position so as to form a reciprocating path between the dyeing position and two preparation liquid supply positions provided below the dyeing position. The dye baths are arranged in pairs, and after pad dyeing of the fabric with the dye in the first dye bath is completed, the first dye bath, the main body of the padder, and the first dye bath are The inside of the operational liquid supply pipe that supplies the dye liquor to the inside is first cleaned, and then the first dye liquor tank is moved to the first preparation liquid supply position, and at the same time, the second dye liquor tank is moved to the first liquid supply pipe. the first dye solution in the first preparation solution supply position while the fabric is being dyed with the dye solution in the second dye solution tank; Automatic cleaning of a dye padder, characterized in that the tank is secondarily cleaned, and then a new dye solution is supplied into the first dye solution tank to complete the preparation operation for returning to the dyeing position. and how to change the dye solution. 2. In the dyeing padder, the dyeing position is alternately reciprocated between the dyeing position and two preparation liquid supply positions provided below the dyeing position on both sides of the dyeing position.
When the first dye tank is at the first preparatory liquid supply position, the first dye tank is located at the first preparatory liquid supply position. A vertical movement is applied to the second dye liquor tank between the horizontal moving means, and when the second dye liquor tank is at the second preparation liquid supply position, a second dye liquor tank is moved between the dyeing position and the horizontal moving means. Lifting means for raising and lowering the dye liquor tank, which gives rise and fall movement to the first dye liquor tank; pipes for supplying the dye liquor and washing water respectively disposed at the two preparation liquid supply positions; The dye vat that descended to
Also, automatic cleaning is carried out by a second washing water supply pipe that sprays a shower of washing water into the main body of the packer, which is equipped with a fabric guide roll, and an operating liquid supply pipe arranged in the main body of the packer. and a dyeing padder that constitutes a dye solution changing device.