JPS6243263Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a fabric drying device for drying a long fabric such as a knitted fabric or a textured yarn fabric with hot air in a tension-free state.

(Prior art) A fabric drying device was developed in 1975 as a fabric drying device that gives a shrinking effect to the fabric and obtains an excellent texture by drying a long fabric with hot air under no tension.
Publication No. 22477 discloses that endless net conveyors are installed horizontally in two levels, upper and lower, in a box-shaped drying chamber, and fabric is introduced in a waveform into a fabric passage formed between the two levels of net conveyors and transferred. However, a method is disclosed in which hot air is blown onto the fabric from hot air blowing nozzles of wind cylinders provided inside the upper and lower net conveyors, respectively.

(Problems to be solved by the invention) Since the conventional fabric drying device described above has a pair of upper and lower net conveyors arranged horizontally, a large installation area is required to extend the net conveyor. In addition, since the fabric bent in a waveform only makes light contact with the upper and lower net conveyors at its top or trough, the fabric may meander across the width of the net conveyor, causing folds or wrinkles, and further damage to the net. When endless chains were attached to both sides of the conveyor and driven by sprockets, there were drawbacks such as the fabric coming into contact with the chain as it meandered as described above and becoming soiled.

This invention provides a fabric drying device that does not require an expansion of the installation area when extending the net conveyor, prevents the fabric from meandering in the width direction, and can dry the fabric with hot air with almost no tension. It is something to do.

(Means for solving the problem) An endless central net conveyor 2 is installed vertically in the center of a box-shaped drying chamber, and a U-shaped fabric passage 6 is provided outside the central net conveyor 2 and surrounding it.
An endless outer net conveyor 5 is provided in a U-shape with double inner and outer sides, and a large number of fabrics partitioning the fabric passage 6 into either one of the central net conveyor 2 and the outer net conveyor 5. Guide plates 3 are provided protrudingly at regular intervals, and a central wind cylinder 7 and an outer wind cylinder 8 are provided inside the central net conveyor 2 and outer net conveyor 5, respectively, and these central wind cylinder 7 and outer wind cylinder 8 A large number of hot air blowing nozzles 7a and 8a are disposed on opposing surfaces of.

(Function) The central net conveyor 2 and the outer net conveyor 5 are rotated so that the inner U-shaped portion of the outer net conveyor 5 facing the outer surface of the central net conveyor 2 moves in the same direction and at the same speed as the central net conveyor 2. , the fabric F is placed at the entrance of the fabric passage 6 from above.
When the fabric F is fed at a speed faster than the moving speed of the net conveyors 2 and 5, the fabric F falls onto the fabric guide plate 3 and is bent into a wave shape, and is filled into the space between the adjacent fabric guide plates 3, 3. Approximately equal lengths are accommodated in a tension-free state and transferred regularly, while the hot air blowing nozzles 7 of the central wind barrel 7 and the outer wind barrel 8
It is dried and shrunk while fluttering by the hot air blown out from a and 8a. At this time, both the central net conveyor 2 and the outer net conveyor 5 move at the same speed, and the fabric path 6 is partitioned by the fabric draft guide plate 3, so floating and widthwise movement of the fabric F is suppressed. The fabric F is regularly transferred as described above without falling to the lower end of the fabric path 6 due to its own weight, thereby preventing uneven drying and meandering in the width direction. And the fabric passage 6
The above-mentioned fabric F is taken out upwards on the exit side of the .

(Example) A pair of left and right center sprockets 1 (the direction perpendicular to the plane of the paper is taken as the left and right direction) is provided at the upper center of the inside of a box-shaped drying chamber (not shown). Endless chains attached to both sides of the central net conveyor 2 are suspended downward, and the lower ends are attached to a pair of left and right U-shaped chain guides (not shown) provided below. I will guide you. In addition,
On the surface of the central net conveyor 2, a large number of fabric guide plates 3 are vertically protruded at regular intervals.

A pair of left and right outer sprockets 4, 4 are provided in front and rear of the central sprocket 1, respectively, and an endless outer net conveyor 5 is hung around the front and rear outer sprockets 4, 4 in a hanging manner. This outer net conveyor 5 has an endless chain attached to both side ears like the above-mentioned central net conveyor 2, and this outer net conveyor 5 is designed so that its center section passes below the above-mentioned central net conveyor 2. The inner and outer U-shaped parts are suspended from the fabric guide plate 3.
A U-shaped fabric path 6 is formed between the center net conveyor 2 and the center net conveyor 2 by maintaining a slight distance from the leading end of the fabric.

A vertical central wind cylinder 7 is provided inside the central net conveyor 2, and a U-shaped outer wind cylinder 8 is provided between the inner U-shaped portion and the outer U-shaped portion of the outer net conveyor 5. The central wind barrel 7 and the outer wind barrel 8 are provided with a large number of hot air blowing nozzles 7a and 8a arranged in a staggered manner on their opposing surfaces, respectively, so as to blow hot air into the fabric passage 6.

In the above structure, when the fabric F is fed in the direction of arrow P and the center sprocket 1 and the outer sprockets 4 and 4 are rotated in the directions of arrows Q and R, respectively, the fabric F is fed into the fabric path 6 in a wave shape and It is transferred as the net conveyor 2 and the outer net conveyor 5 rotate, and is dried by hot air blown from the hot air blowing nozzle 7a of the central wind cylinder 7 and the hot air blowing nozzle 8a of the outer wind cylinder 8 during that time. In this embodiment, the hot air blowing nozzles 7a of the central wind cylinder 7 and the hot air blowing nozzles 8a of the outer wind cylinders 8 are arranged in a staggered manner, so that the hot air blowing nozzles 7a and 8a are provided oppositely. The flapping of the fabric F is further increased compared to the case where there is no drying and shrinkage, and drying and shrinkage are performed evenly. Further, since endless chains are attached to both side edges of the net conveyors 2 and 5 and driven by sprockets, meandering of the net conveyors 2 and 5 does not occur.

In the above embodiment, the fabric guide plate 3 can be formed of a perforated plate or a wire mesh. Further, the fabric guide plate 3 described above may be provided on the outer net conveyor 5. However, in this case, the required number of fabric guide plates is greater than in the embodiment. In addition, the outer wind fuselage 8
The U-shaped bottom may be omitted, and the omitted portion may be provided with a short straight wind barrel.

(Effects of the invention) This invention has an outer net conveyor arranged in a U-shape outside the vertical central net conveyor, and a U-shaped fabric path is formed between both net conveyors. Both sides of the conveyor, that is, the descending section (outward stroke) and the ascending section (return stroke) of the central net conveyor, are used for drying the fabric.
Therefore, the length of the net conveyor can be shortened compared to the conventional horizontal type that uses only one side, and when extending the net conveyor to increase processing capacity, it can be extended upward, reducing the installation area. There is no need to increase, and with normal processing capacity,
The installation area can be smaller than the conventional horizontal type. In addition, since the fabric path is partitioned by the fabric guide plate, the floating and widthwise movement of the fabric is suppressed by the fabric guide plate, thereby preventing the fabric from meandering, thereby preventing the fabric from protruding from the side edge of the net conveyor. It won't get dirty, folded or wrinkled.

[Brief explanation of the drawing]

The drawing is a vertical cutaway side view of an embodiment of the invention. 2: Central net conveyor, 3: Fabric guide board,
5: outer net conveyor, 6: fabric passage, 7: central wind barrel, 8: outer wind barrel, 7a, 8a: hot air blowing nozzle.

Claims (1)

[Scope of Claim for Utility Model Registration] [1] An endless central net conveyor is vertically provided in the center of a box-shaped drying chamber, and a U-shaped fabric path is formed outside of this central net conveyor surrounding it. An endless outer net conveyor is provided in a U-shape with double inner and outer sides, and a large number of fabric guide plates that partition the fabric passage are placed at regular intervals on either one of the central net conveyor and the outer net conveyor. A central wind cylinder and an outer wind cylinder are provided inside the central net conveyor and outer net conveyor, respectively, and a large number of hot air blowing nozzles are arranged on the opposing surfaces of these central wind cylinder and outer wind cylinder. A fabric drying device characterized by: [2] The fabric drying device according to claim 1, wherein the hot air blowing nozzles of the central wind cylinder and the hot air blowing nozzles of the outer wind cylinders are arranged in a staggered manner. [3] The fabric drying device according to claim 1 or 2, wherein the outer wind barrel is formed in a U-shape.