JPH0141113Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to an improvement of a continuous hot air drying device that can continuously and effectively dry continuously transported fabrics.

[Background of the idea]

For example, pre-treatment of industrially produced long fabrics,
After performing treatments such as dyeing, it is customary to wash the fabric. Since it is necessary to dry the fabric after this washing treatment, various continuous drying apparatuses have been developed that are capable of continuously drying these long fabrics. Continuous drying devices that have been developed in the past can be roughly divided into two types: one is for fabrics to be dried between a pair of net conveyors spaced up and down, and the fabric is continuously transferred as the net conveyors rotate. A long fabric is continuously passed through a drum that is dried by blowing dry hot air and rotates forward and reverse intermittently, and the fabric is oscillated and transported by the forward and reverse action of this drum. There is a method in which hot air supplied into the drum acts on the fabric to perform continuous drying, but the present invention is an improvement on the continuous drying device using the latter drum.

That is, as shown in Fig. 4, a conventional drying device using this drum has an air-permeable drum 2, which is open at both ends and made of punched metal or wire mesh, placed in a drying chamber 1, with its rotation axis horizontal. The drum 2 is arranged so as to be driven intermittently in the forward or reverse direction by a motor (not shown), and openings on both sides of the drum 2 are provided in the opposing left and right side walls of the drying chamber 1. A fabric inlet 3 and a fabric outlet 4 leading to the section are provided, and the fabric inlet 3
The long fabric 5 that is being supplied sequentially is guided into the drum 2, and while the fabric in the drum is oscillated by intermittent forward and reverse rotation of the drum 2, the dry hot air supplied from the hot air supply port 6 is passed through the drum 2. The cloth 5 was dried by passing through the cloth 5.

However, in the case of a drying apparatus having such a conventional structure, as shown in FIG. flows into the drum 2 through the ventilation holes of the drum 2, and
However, when the drum rotates, the drum's own body becomes a single plate, which reduces ventilation and makes it difficult for hot air to enter the drum. Due to the ventilation resistance of the drum 2, a temperature difference occurs between the outside and inside of the drum 2. For example, if the temperature of the hot air blown into the drying chamber 1 from the hot air supply port 6 is 150°C, The temperature of the hot air between the drum 2 and the outside is maintained at approximately 140°C, but the temperature inside the drum 2 is approximately 120°C.
Therefore, the high temperature hot air blown out from the hot air supply port 6 could not be applied to the fabric, and highly efficient drying could not be expected.

[Purpose of invention]

The present invention was devised to solve the problems in the conventional drying equipment, and allows the high temperature dry hot air blown from the hot air supply port to come into contact with the fabric to be dried without causing a temperature drop. It is an object of the present invention to provide a continuous hot air drying device for fabrics that can increase the drying efficiency of fabrics.

[Example of idea]

The present invention will be explained in detail below based on the embodiments shown in FIGS. 1 to 3.

Reference numeral 11 denotes a drying chamber constructed horizontally of insulating board material, and inside this drying chamber 11 is a rotating drum 12 formed of a breathable material such as punched metal or wire mesh, with its rotation axis lying horizontally. It is set up like this. That is, they are located on both left and right sides of both side openings 12' of this drum 12. Reference numeral 13 denotes a support roll that rotatably supports the drum 12. The drum 12 is rotated forward and reverse at a constant rotation angle by a drive motor (not shown) that rotates forward and reverse intermittently. Fabric 14 fed into drum 12
It is dried by shaking. A plurality of hot air supply ports 15 are provided at the bottom of the drying chamber 11, and these hot air supply ports 15 are communicated with a ventilation duct 16 connected to a hot air supply machine (not shown). Further, on the outer peripheral surface of the drum 12, a guide plate 17 having a V-shaped cross section is provided corresponding to each hot air supply port 15 to efficiently send hot air blown from the hot air supply port 15 into the drum 12. It is being Reference numeral 18 denotes an exhaust port located at the inner upper part of the drying chamber 11, and 19 and 20 designate a fabric inlet and a fabric outlet provided on both side walls of the drying chamber 11.

The above is an example of the apparatus according to this embodiment, but the gist of the present invention is that a plurality of hot air supply ports 15 are provided in the drying chamber 11, and the hot air supplied from the hot air supply ports 15 is Rotating drum 1
Since a hot air guide plate 17 for guiding the hot air into the rotary drum 12 is formed on the outer peripheral surface of the rotary drum 12, the hot air supply efficiency into the rotary drum 12 is increased, and the temperature of the hot air blown out from the hot air supply port 15 is increased. Since high-temperature hot air can be supplied into the rotating drum without reducing the temperature, the hot air drying efficiency of the fabric transferred within the rotating drum 12 is increased. It has its features.

[Summary of the idea]

As described above, the present invention installs an air-permeable rotating drum in the drying chamber, guides the fabric introduced into the rotating drum from the fabric inlet provided in the drying chamber, and the fabric is removed as the rotating drum rotates. In the continuous drying device, the fabric is dried by the swinging of the rotating drum and the dry hot air introduced into the rotating drum, the drying chamber is provided with a plurality of hot air supply ports along the axial direction of the rotating drum, and the drying chamber is provided with a plurality of hot air supply ports along the axial direction of the rotating drum. The continuous hot air drying device is characterized in that hot air guide plates are provided on the outer peripheral surface of the dryer in correspondence with each of the hot air supply ports to guide the hot air blown out from the hot air supply ports into the rotating drum. .

[Effect of idea]

Therefore, according to this device, the hot air blown out from the hot air supply port can be immediately supplied into the rotating drum by the hot air guide plate provided around the outer periphery of the rotating drum. Hot air can be supplied into the rotating drum, which has the effect of increasing drying efficiency.

[Brief explanation of the drawing]

FIG. 1 is a cutaway side view showing an embodiment of the continuous hot air drying device according to the present invention, FIG. 2 is a front view thereof,
FIG. 3 is an enlarged sectional view of the main part thereof, and FIG. 4 is a sectional view of the conventional example. 11...Drying room, 12...Rotating drum, 12'
... opening, 13 ... receiving roll, 14 ... fabric, 15 ... hot air supply port, 16 ... ventilation duct,
17... Guide plate, 18... Exhaust port, 19... Fabric inlet, 20... Fabric outlet.

Claims (1)

[Scope of utility model registration request] A breathable rotating drum is installed in the drying chamber, and the fabric introduced into the drying chamber is guided into the rotating drum, and as the rotating drum rotates, the fabric swings and is introduced into the rotating drum. In the continuous drying device for drying the fabric with dry hot air, the drying chamber is provided with a plurality of hot air supply ports along the axial direction of the rotating drum, and the outer peripheral surface of the rotating drum is provided with each of the hot air A continuous hot air drying device characterized in that hot air guide plates for guiding hot air blown from the supply ports into the rotating drum are provided corresponding to each of the hot air supply ports.