JPH108373A - Drying apparatus for fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drying apparatus for fabric having a compact size and high drying efficiency, and capable of giving high rubbing effect to the fabric and also cooling the fabric while taking off the stiffness by rubbing after drying the fabric. SOLUTION: This apparatus is used for drying fabric 1 on an opened cloth and a treating means 16 is disposed in a drying casing 2, or more than two treating means 16 are arranged in parallel from an inlet side to an exit side of the drying casing 2 along a carrying direction of the fabric. The treating means 16 has sidewalls forming a treating path 13 capable of passing the fabric 1 in a state of an opened cloth while surrounding the fabric 1 at a narrow interval and a gas blowing-in means 10 formed by at least one piece on respective sidewalls positioned to each of obverse and reverse side of the fabric 1 passing through the treating path 3 and capable of blowing the gas into the treating path 3 from each of the obverse and the reverse side of the fabric 1 to whole breadth of the fabric 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an apparatus for drying fabric. The present invention particularly relates to an apparatus for continuously drying fiber fabrics in a spread form.

[0002]

2. Description of the Related Art Conventionally, cylinder dryers, net conveyor transport dryers, and the like have been used as devices for continuously drying textile fabrics after processing such as textile printing, dyeing, and washing with water. I have. In such a dryer,
In some cases, a cooling cylinder is provided at the outlet of the dryer in order to cool the fabric heated by drying.

Generally, in a cylinder dryer, tension is applied to the fabric during drying, so that the fabric is stretched in the length direction,
The product coming out of the dryer becomes flat and has a poor texture. For this reason, over-feeding is performed in the length direction by a tenter in a post-process to improve the flat appearance and texture, but the improvement is not sufficient.

On the other hand, in a net conveyor conveyor type dryer, a belt conveyor on which a mesh endless belt is stretched is arranged vertically, and the fabric is conveyed along a conveyance path formed by the upper and lower belt conveyors. The air ducts are arranged in a zigzag manner across the endless belt with the conveying path interposed therebetween, and hot air is jetted from the slit nozzles of the upper and lower air ducts onto the cloth conveyed on the conveying path, and the cloth is waved by the jet of the hot air. Drying while pouring.
In this way, the continuously fed fabric is made wavy by hot air in the transport path, and the fabric is dried while being transported and supplied from one side to the other by the fabric transport conveyor, so that the fabric is rubbed and dried. Thus, the shrinkage effect is obtained, and the texture is improved.

[0005] However, in the net conveyor transport type dryer, the net conveyor is arranged above and below the cloth,
Further, since the air duct is provided over the entire area of the conveyance path across the conveyance path over the endless belt, the presence of the net conveyor section and the air duct section makes the drying apparatus large and expensive. Further, the air ducts are arranged in a staggered manner, and the hot air is jetted from slit nozzles provided in the duct, but since the hot air hits only one side of the fabric in each slit nozzle portion, the fabric has a slit nozzle. Only the part becomes wavy and the kneading effect is given only, and the kneading effect is not sufficient.

When a cylinder is used as a cooling device, tension is applied to the cloth as it passes through the cylinder, so that the cloth stretches in the length direction, and even if it is dried while being rubbed and kneaded at the time of drying, the cloth is cooled. In, the fabric becomes flat and the texture becomes poor.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention relates to a fabric which is compact, has a high drying efficiency, can obtain a high kneading effect of the fabric, and can be cooled while kneading and loosening after drying the fabric. It is an object of the present invention to provide a drying apparatus.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is an apparatus for drying a cloth on a spread cloth, wherein one processing means is disposed in a drying casing. Alternatively, two or more processing means are arranged side by side from the inlet side to the outlet side of the drying processing casing along the transport direction of the cloth, and the processing means spreads the cloth while enclosing the cloth at a small interval. At least one side wall is formed on each side of the fabric passing through the processing passage, and the width of the fabric is measured from each side of the front and back of the fabric. And a gas blowing means capable of blowing gas into the processing passage throughout.

[0009]

According to the apparatus of the present invention as described above, the cloth is passed through the processing passage formed by the side wall surrounding the cloth at a small interval in the processing means. It is vibrated and rubbed by a large amount of airflow blown from gas blowing means arranged on each side. At this time, most of the airflow blown into the processing passage flows in the direction of transport of the fabric and exits from the outlet of the processing passage, but part of the air flow exits from the entrance of the processing passage. Therefore, the airflow flows through the entire processing passage, so that the fabric vibrates over the entire processing passage and is loosened.

In the present invention, the air flow blown from the gas blowing means is hot air or cold air (hereinafter referred to as hot air or the like). That is, the fabric is dried or cooled (hereinafter, referred to as drying or the like) by blowing hot air during drying and blowing cool air during cooling. Hot air or the like is blown from the gas blowing nozzle of the gas blowing means over the entire width of the cloth moving in the spread path in the processing passage. At this time, the moisture adhering to the cloth is blown off by the blowing pressure of the airflow or the vibration of the cloth as described above, so that the drying of the cloth by hot air or the like is efficiently performed, and at the same time, a sufficient kneading effect is given. Thereby, the texture can be improved.

In the drying apparatus according to the present invention, the gas blowing means provided on the side wall of the processing means is provided at least one pair on each of the front and back sides of the fabric, and the air flow blown from each pair of blowing means is provided. Are preferably opposed to each other so as to act at the same position in the longitudinal direction of the fabric on each side of the fabric. Further, the processing means includes:
The airflow blown into the processing passage is blown onto the fabric at a desired angle with respect to the direction of transport of the fabric, and the blown airflow causes the fabric to be pulled in the transport direction of the fabric and transferred. It is preferable that it is comprised as follows.

Further, in order to impart sufficient vibration and kneading effect to the cloth, the narrow interval between the processing passages in the processing means is preferably 50 mm or less, particularly preferably 15 mm or less. Further, in order to achieve sufficient vibration of the cloth in the processing passage, the blowing speed of the gas stream from the gas blowing nozzle of the gas blowing means is preferably 20 m / sec or more, and if desired, about 200 m / sec. It may be fast. Of course, this speed is not particularly limited, and can be appropriately selected according to the purpose of the processing.

The gas blowing nozzle of the gas blowing means may be a slit having a continuous opening or a punching having small openings arranged in a line so as to cover the entire width of the fabric. The air flow tends to flow in the direction of low resistance, and therefore, in the processing passage of the processing means, a portion located outside both ends of the cloth, that is, the cloth does not pass through, and accordingly, the other parts correspondingly. Attempts to flow to a part with a wider space. For this reason, even when the cloth is partially folded or enters the processing path in one direction, the airflow blown to the cloth has no cloth and therefore flows toward the processing path with less resistance. Therefore, the cloth is forcibly and positively spread according to the airflow and is centered. Therefore, in the drying processing apparatus of the present invention, the cloth is transferred without meandering in the processing path due to the spreading effect and the centering effect due to the airflow blown from the gas blowing nozzle of the gas blowing means.

[0014]

Embodiments of the present invention will be further described below with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing one embodiment of the drying device according to the present invention. The cloth 1 enters the drying processing casing 2 via the inlet driving roll 5, is conveyed to the processing path 3 of the processing means 16, and moves in this path. At this time, the gas circulation path 7
The hot air or the like that has passed through is blown onto the fabric 1 from the gas blowing nozzle 4 of the gas blowing means 10, so that the fabric 1 vibrates and is loosened, and then exits the drying casing 2 from the fabric outlet 15. In this manner, the fabric 1 is dried or the like between the fabric inlet 14 and the fabric outlet 15 of the drying casing 2.

On the other hand, most of the gas in the drying casing 2 is drawn out from the gas suction port 6, compressed by the blower 8 in the gas circulation path 7, heated by the heat exchanger 9, and then supplied to the gas blowing means. The gas is blown from the gas blowing nozzle into the processing passage 3. During this time, the drying casing 2
A part of the airflow inside is discharged from the exhaust port 11 to the outside by the exhaust fan 12.

FIGS. 2 and 3 are schematic sectional views showing other embodiments of the drying apparatus according to the present invention. In the apparatus shown in FIG. 2, in the drying processing casing 2, three processing means 16 are arranged side by side from the entrance to the exit of the drying processing casing 2 along the cloth conveying path. In each of the means, the fabric is dried by hot air blown into the processing passage.

In the apparatus shown in FIG. 3, drying and cooling are performed by three processing means 16 provided in the drying processing casing 2. That is, the hot air that has passed through the heat exchanger 9 in the first two processing means is blown onto the cloth 1 and dried in the processing passage 3. Next, the cloth 1 heated to a high temperature by the drying treatment is cooled by blowing cold air in the air sent by the blower 8 'in the last treatment means. Thereby, a good quality dried fabric can be sent to the next step stably.

FIG. 4 is a schematic sectional view showing details of the processing means 16 in the drying processing apparatus shown in FIGS. 1 to 3, and FIG. 5 is a sectional view taken along the line AA 'of FIG. Processing device 16
The processing passage 3 is formed so as to surround the fabric 1 with a narrow space of 50 mm or less by the side wall 13.
Is provided with a gas blowing means 10 having a gas blowing nozzle 4 for blowing gas into the processing passage 3 from both sides.

The fabric 1 is guided to the entrance of the processing passage 3,
Then, while passing through the processing passage 3, vibration, kneading effect, spreading effect, centering effect and conveying force are given by the action of the airflow blown into the processing passage 3 from the gas blowing nozzle 4, and It is sent out from the exit. The airflow blowing nozzle 4 extends in the transverse direction of the processing passage so that the airflow blown therefrom acts on the cloth 1 in the width direction, and is preferably constituted by slits or rows of openings.

[0020]

According to the drying apparatus of the present invention, a belt conveyor or the like as in a net conveyor transport type dryer is not required, and the interval between the processing passages for performing actual drying and the like is narrow, and the side wall of the processing passage is provided. Since at least one gas blowing means is provided on each side of the fabric on both sides, it is only necessary to provide a blowing duct only at that portion. Therefore, the blowing duct extends over the entire transport path like a net conveyor transport type dryer. There is no need to provide a dryer, and the dryer becomes compact as a whole. Further, the cloth sent into the processing passage is dried while passing through the processing passage by hot air or the like injected from the gas blowing means, and is transferred while being given a vibration, a kneading effect and the like, The swelling due to the shrinkage of the fabric structure is obtained, and the texture is improved. Furthermore, since there is no need to use a cylinder as a cooling device after drying, a stable and good-quality dried fabric can be stably sent to the next step.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing an example of a drying apparatus according to the present invention.

FIG. 2 is a schematic sectional view showing another example of the drying treatment apparatus according to the present invention.

FIG. 3 is a schematic sectional view showing another example of the drying treatment apparatus according to the present invention.

FIG. 4 is a schematic cross-sectional view showing processing means useful for the drying processing apparatus of the present invention.

FIG. 5 is a sectional view taken along the line AA ′ of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Cloth 2 ... Drying casing 3 ... Processing passage 4 ... Gas blowing nozzle 5 ... Inlet drive roll 5 '... Outlet drive roll 6 ... Gas suction port 7 ... Gas circulation path 8 ... Blower 8' ... Blower 9 ... Heat exchanger 10 ... gas blowing means 11 ... exhaust port 12 ... exhaust fan 13 ... side wall 14 ... cloth inlet 15 ... cloth outlet 16 ... processing means

Claims (3)

[Claims] An apparatus for drying a cloth on a spread cloth, wherein one processing means is disposed in a drying processing casing, or two or more processing means are arranged along a transport direction of the cloth. Side walls are arranged side by side from the inlet side to the outlet side of the drying processing casing, and the processing means, while surrounding the cloth at a small interval, forming a processing passage capable of passing in a spread form, A gas blower provided on at least one of the side walls located on each of the front and back sides of the fabric passing through the processing passage, and capable of blowing gas into the processing passage from the front and back sides of the fabric over the entire width of the fabric; And a drying treatment apparatus for fabric. 2. The apparatus according to claim 1, wherein a narrow interval between the processing passages is 50 mm or less. 3. The gas blowing means is provided in at least one pair on each of the front and back sides of the fabric, and the gas blown from each pair of blowing means is provided in the longitudinal direction of the fabric on each of the front and back sides of the fabric. 3. Apparatus according to claim 1 or 2, wherein the apparatus is arranged opposite to act in the same position.