JP2004275488A - Drying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drying device capable of preventing drying irregularities of objects to be treated and efficiently drying the objects to be treated by making hot air pass almost uniformly over the axial direction of a drum. <P>SOLUTION: The drying device 1 is provided with a case body 2 having an object-to-be-treated feeding part 6, a drum 5 freely rotatably provided in a laterally-facing state inside a drying treatment chamber 4 formed inside the case body 2 and provided with air permeability for housing the object to be treated which is fed from the object-to-be-treated feeding part 6, a rotary drive mechanism 26 for rotating the drum 5, a heating unit 11 for heating introduced outdoor air, and an exhaust unit 12 for discharging the hot air to the outside. On the section wall 3 of the drying treatment chamber 4, a supply air entrance 13 communicating with the heating unit 11 and a discharge air exit 14 communicating with the exhaust unit 12 are opened. The opening shapes of the supply air entrance 13 and the discharge air exit 14 are formed such that the opening widths D and T of parts away from the heating unit 11 and the exhaust unit 12 are wider than the opening widths d and t of the parts near them. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a drying device for drying an object to be processed such as washed clothes.
[0002]
[Prior art]
When cleaning the object to be processed, such as clothing, as a business, after the dirt on the object to be processed is completely washed and removed, the object to be processed containing water is forcibly forced by hot air using a drying device without performing natural drying. Drying has been practiced.
[0003]
In a drying apparatus of this type, for example, a drying processing chamber is defined in a housing, and a drum having a ventilation hole is provided rotatably in a horizontal state in the processing chamber, and outside air is introduced from an upper inlet of the housing. To form a warm air passage through which the air passes through a drying processing chamber having a drum and is discharged from the lower exhaust port of the housing to the outside. A heating unit is arranged near the upper inlet of the warm air path, An exhaust unit is arranged near the lower exhaust port of the air passage, and a lint filter is arranged in front of the exhaust unit.
[0004]
In other words, this drying device stores the object to be processed in the drum, drives the fan of the exhaust unit, heats the outside air introduced from the upper inlet by the heater of the heating unit, generates hot air, and rotates the drum. The hot air is sucked into the drum through the air holes in the peripheral wall of the drum while heating, and the object in the drum is heated to evaporate the moisture, discharged through the lower exhaust port through the lint filter and discharged to the outside. Drying is going on.
[0005]
As a technique related to such a drying apparatus, Japanese Patent Application Laid-Open No. 2001-120896 (Patent Document 1) proposes an invention relating to a “drying apparatus and a drying method”. The present invention relates to a drying apparatus for drying a thick workpiece such as a futon or a blanket, and a partitioning member for partitioning a plurality of storage chambers in a drum is provided. This is to eliminate the bias and improve the drying efficiency.
[0006]
[Patent Document 1]
JP 2001-120896 A
[Problems to be solved by the invention]
By the way, in the conventional drying device, a hot air passage that passes through a drying processing chamber having a drum in the housing is formed. Into the drum through the air supply inlet formed in the upper partition wall of the drying processing chamber and the ventilation hole in the drum peripheral wall, and formed in the ventilation hole in the drum peripheral wall and the lower partition wall of the drying processing chamber. Through the lower exhaust port of the casing through the exhaust outlet, the air supply inlet formed in the upper partition wall of the drying chamber and the exhaust outlet formed in the lower partition wall of the drying chamber, The opening was long and rectangular in the axial direction of the drum.
[0008]
As described above, since the opening width of the supply air inlet and the exhaust air outlet is the same width in the axial direction of the drum, the warm air passes through a portion close to the heating unit and the exhaust unit, and is distant (for example, a front portion of the drum). Has a problem that the hot air is not sufficiently distributed and uneven drying occurs. That is, since the warm air easily passes through the back of the cylindrical drum, drying is quick, and a phenomenon that it is difficult to dry in the near side occurs, and drying is uneven.
[0009]
The present invention has been made in view of such circumstances, and allows hot air to pass almost uniformly in the axial direction of the drum to prevent uneven drying of the processing object and efficiently dry the processing object. It is an object of the present invention to provide a drying device capable of causing the drying device.
[0010]
[Means for Solving the Problems]
The present invention has been proposed in order to achieve the above object, and the invention according to claim 1 includes a housing having a workpiece input section on a front surface thereof,
A drying processing chamber partitioned and formed in the housing;
A drum that is rotatably provided in the processing chamber in a horizontal state, has air permeability, and stores a workpiece to be loaded from the workpiece loading section;
A rotation drive mechanism for rotating the drum,
A heating unit arranged on the back side of the housing and heating air,
An exhaust unit that is arranged on the back side of the housing and sucks warm air in the processing chamber and discharges the air to the outside;
A drying device comprising:
On the partition wall that partitions the processing chamber, an air supply inlet communicating with the heating unit side and an exhaust outlet communicating with the exhaust unit side are opened,
The opening shapes of the supply air inlet and the exhaust outlet are formed so that the opening width of the front side portion of the processing chamber is wider than the opening width of the back side portion.
[0011]
The drying device according to claim 1, wherein the opening width of the air supply inlet and the exhaust outlet gradually increases from the back side of the processing chamber toward the front side. It is.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic front view of an embodiment of the drying device of the present invention, and FIG. 2 is a schematic side view thereof.
[0013]
The illustrated drying device 1 is a commercial two-stage drying device installed in a coin laundry or the like, and is provided with drying devices 1a and 1b having the same structure on the upper and lower sides. In each of the drying devices 1a and 1b, a cylindrical shell (outer body) 3 is provided in a horizontal state inside a substantially rectangular parallelepiped casing 2 that can be sealed, and a drying processing chamber 4 is defined and formed. 4, a drum 5 is rotatably provided in a horizontal state.
[0014]
The housing 2 has a circular input port 6 having a diameter smaller than the inner diameter of the drum 5 and is provided on the front surface thereof as an input section of an object to be processed such as clothing (object input section of the present invention). A door 7 that opens and closes is provided. The door 7 in the present embodiment has a circular shape, and a round window 8 is provided at a central portion thereof. A seal member 9 for improving airtightness is provided on the housing 2 side of the door 7.
[0015]
The shell 3 has a substantially cylindrical shape with its axis centered sideways, and defines a drying processing chamber 4 as a columnar space together with a back plate 10. The drying processing chamber 4 is separated from the outer peripheral surface of the drum 5 by a gap. Is surrounded.
[0016]
A heating unit 11 for heating the introduced outside air is provided above each shell 3 on the rear side in the housing 2, and an exhaust unit 12 for discharging warm air to the outside is provided below each shell 3. . Further, on one side of the upper part of the shell 3 which is a partition wall dividing the processing chamber 4, an air supply inlet 13 is formed which communicates with the heating unit 11 side and allows hot air to flow into the drying processing chamber 4. An exhaust outlet 14 is formed in the lower center of the shell 3 and communicates with the exhaust unit 12 to allow hot air to flow out of the drying chamber 4. The specific structures such as the opening shapes of the air supply inlet 13 and the exhaust outlet 14 will be described later.
[0017]
The drum 5 has a cylindrical shape with its axis center turned sideways, has an opening 16 at the center of the ring-shaped end plate 15 on the front side, and projects the support shaft 18 outward at the center of the circular end plate 17 on the back side. The peripheral plate connecting both end plates 15 and 17 is provided with innumerable small ventilation holes (not shown) to provide air permeability, and the opening 16 communicates with the inlet 6 of the housing 2. It is like that. The support shaft 18 is supported by bearings 20 and 21 provided on the back plate 10 and a bracket 19 behind the back plate 10, and a pulley 22 provided on a tip of the support shaft 18 and a pulley 24 provided on an output shaft of a motor 23. The belt 25 is hung in between, and the drum 5 is rotated by the operation of the motor 23.
[0018]
The rotation driving mechanism 26 such as the motor 23 and the pulleys 22 and 24 is not limited to the above-described motor and belt, but may have any configuration as long as the drum 5 can be rotated.
[0019]
The heating unit 11 is provided at an upper portion in the housing 2, and a heating device 27 such as a burner is provided downstream of an intake unit (not shown) that sucks outside air. The heating unit 11 in the present embodiment drives the exhaust unit 12 to heat the outside air introduced from the air intake unit and supply warm air into the processing chamber 4. It may be equipped.
[0020]
The exhaust unit 12 is provided with a sirocco fan-type blower 28 at the lower rear of each shell 3 on the rear side of the housing 2, and communicates an intake-side air passage 29 of the blower 28 with the exhaust outlet 14 of the processing chamber 4. A duct (not shown) is connected to the exhaust side port 30 of the blower 28 so that the air can be exhausted outdoors. Then, a drying processing chamber 4 is formed by being partitioned by the shell 3 in the housing 2, a drum 5 is disposed in the drying processing chamber 4, and a lint filter 31 is provided in the middle of the intake side ventilation path 29, and a lint filter 31 is provided. The outlet side of the filter 31 communicates with the intake port of the blower 28, and the duct is connected to the exhaust side port 30 opened on the upper surface of the blower 28.
[0021]
Therefore, when the blower 28 is operated, a negative pressure is generated on the intake port side (the intake side ventilation path 29), whereby the air in the drying processing chamber 4 provided with the drum 5 is formed in the lower center of the shell 3. The air is sucked out from the exhaust outlet 14 and flows into the intake side ventilation passage 29, and is filtered (removal of lint and cotton lint) by the lint filter 31 on the way, and the filtered air passes through the blower 28 and is discharged to the exhaust side. The air is exhausted outside through the duct through the port 30. Further, when the air in the drying processing chamber 4 is exhausted in this manner, the high-temperature hot air heated from the suction portion through the heating device 27 of the heating unit 11 is supplied to the air supply inlet 13 of the shell 3 and the drum. It is sucked into the inside of the drum 5 through the ventilation hole of the peripheral plate.
[0022]
A hat (not shown) is formed on the inner surface of the peripheral plate connecting the both end plates 15 and 17 of the drum 5 for hooking and raising an object to be processed such as clothing when the drum 5 rotates. The hat portion has a mountain shape such as an isosceles triangle when viewed from the front, and projects inward in the radial direction of the drum 5. Further, as described above, the peripheral plate of the drum 5 is provided with innumerable small through-holes to provide air permeability. The vent hole is formed in, for example, a circular shape, but may be formed as a through hole having another shape such as a through slit. In short, it suffices if hot air can be supplied into the drum 5.
[0023]
Next, the specific structure of the air supply inlet 13 and the exhaust outlet 14 will be described in detail. FIG. 3 is a schematic side view of the shell 3 showing the air supply inlet 13 formed in the partition wall of the drying processing chamber 4 in the drying apparatus 1 of the present embodiment. As shown in FIGS. 1 and 3, the shell 3 as a partition wall of the drying processing chamber 4 has a substantially cylindrical shape, and has one upper side (in this embodiment, the upper left side in front view). The air supply inlet 13 is opened. Since the heating unit 11 is located on the upper left side of the rear part in the housing 2, the air supply inlet 13 is opened on the upper left side of the shell 3 so as to communicate with the heating unit 11. The shape of the opening of the air supply inlet 13 is such that the opening width D of the portion far from the heating unit 11 (that is, the front side portion of the drying processing chamber 4) is close (that is, the drying process is performed) in the axial direction of the drum 5. It is formed so as to be wider than the opening width d of the processing chamber 4 (the back side part). In the present embodiment, the opening width of the air supply inlet 13 is formed so as to gradually increase from the portion 13a close to the heating unit 11 to the portion 13b far from the heating unit 11 in the axial direction of the drum 5, for example, , And have a trapezoidal shape.
[0024]
FIG. 4 is a schematic plan view showing an exhaust outlet 14 formed in a partition wall of the drying processing chamber 4 in the drying apparatus 1 of the present embodiment. As shown in FIGS. 1 and 4, an exhaust outlet 14 is formed in the lower center of the shell 3 having a substantially cylindrical shape. The exhaust outlet 14 is opened at the lower center of the shell 3 to allow hot air to pass through the center of the drum 5. The shape of the opening of the exhaust outlet 14 is such that the opening width T of the portion far from the exhaust unit 12 (that is, the front side portion of the drying chamber 4) is close (that is, the drying process) in the axial direction of the drum 5. It is formed so as to be wider than the opening width t of the rear part of the chamber 4). In the present embodiment, the opening width of the exhaust outlet 14 is formed so as to gradually increase from the portion 14a close to the exhaust unit 12 to the portion 14b far from the exhaust unit 12 in the axial direction of the drum 5, for example, It has a trapezoidal shape.
[0025]
As described above, the opening shapes of the supply inlet 13 and the exhaust outlet 14 have a trapezoidal shape, and the opening widths D and T of the portions far from the heating unit 11 and the exhaust unit 12 are close to each other in the axial direction of the drum 5. The opening widths d and t are larger than the opening widths d and t. However, the opening widths of the supply air inlet 13 and the exhaust outlet 14 are reduced at the portions 13 b and 14 b far from the heating unit 11 and the exhaust unit 12. In addition, the amount of hot air flowing through the air supply inlet 13 and the exhaust outlet 14 near the heating unit 11 and the exhaust unit 12 near the heating unit 11 and the exhaust unit 12 is reduced, so that the amount of hot air flowing through the drum as a whole is made uniform. That's why. In other words, by increasing the width of the mouth and increasing the cross-sectional area of the slower part while increasing the width of the mouth to increase the sectional area, the airflow volume can be increased at any part in the front-rear direction of the mouth. Are arranged.
[0026]
In the present embodiment, the opening shapes of the air supply inlet 13 and the exhaust outlet 14 are set to trapezoidal shapes. However, the present invention is not limited to this. If it is possible to equalize the hot air flow rate of the entire drum, a triangular shape is used. Another shape such as a fan shape or a fan shape may be used.
[0027]
In FIG. 1, reference numeral 32 denotes a control box, which is a microcomputer or timer for controlling driving of the motor 23 of the rotary drive mechanism 26, operation of the blower 29 of the exhaust unit 12, operation of the heating device 27 of the heating unit 11, and the like. Etc. are incorporated. In this embodiment, since the drying device 1 is a two-stage type, the control box 32 is provided on the upper right side of the lower drying device 1a, and the control box 32 is provided on the lower right side of the upper drying device 1b. We share.
[0028]
Next, the operation of the drying devices 1a and 1b having the above configuration will be described.
First, the door 7 is opened, and the input port 6 is opened. Then, when a processed product such as clothing is stored in the drum 5 and the start switch of the control box 32 is turned on after the door 7 is closed, the drying process is started as follows.
[0029]
As described above, when the blower 28 of the exhaust unit 12 is operated, a negative pressure is generated on the intake port side (the intake side ventilation path 29), and the air in the drying processing chamber 4 provided with the drum 5 3 is sucked out from an exhaust outlet 14 formed in the lower center of the lower part 3 and flows into an intake side ventilation passage 29, and is filtered (removal of lint and cotton lint) by a lint filter 31 on the way. The air is exhausted to the outside through the exhaust port 30 through the duct and through the duct.
[0030]
Then, when the air in the drying processing chamber 4 is exhausted in this manner, high-temperature hot air heated by passing through the heating device 27 of the heating unit 11 from the suction portion is formed on the upper left side of the shell 3. The air is sucked into the drum 5 through the air supply inlet 13 and the ventilation hole of the drum peripheral plate. That is, the high-temperature hot air heated by passing through the heating device 27 passes through the air supply inlet 13 formed on the upper left side of the shell 3, blows out toward the outer peripheral surface of the drum 5, and passes through the drum peripheral plate. It will be introduced into the drum 5 through the pores.
[0031]
The drum 5 rotates by driving the motor 23 of the rotary drive mechanism 26, and when warm air is directly introduced into the drum 5, the drying process is started. In the drying process, the drum 5 is rotated, and the object to be processed is agitated while being raised by being hooked by a hat portion provided on the inner peripheral surface of the drum 5 and exposed to the warm air introduced into the drum. The object to be processed is dried.
[0032]
By driving the blower 28 of the exhaust unit 12, the warm air introduced into the inside of the drum 5 dries the object to be processed while passing from the inside to the outside of the drum 5, and countless ventilation holes in the drum peripheral plate. To the outside of the drum 5, flows into the intake side ventilation passage 30 through the exhaust outlet 14 formed in the lower center of the shell 3, and is filtered by the lint filter 32 in the middle of the intake side ventilation passage 30 ( The lint is removed and the cotton lint is removed), and is discharged from the exhaust port 30 of the blower 28 to the outside via a duct.
[0033]
In this embodiment, the drying process is performed. In the present embodiment, the air supply inlet 13 communicating with the heating unit 11 is opened on the upper left side of the Shul 3 and the exhaust unit 12 is formed at the lower center of the Shul 3. An exhaust outlet 14 communicating with the heating unit 11 and the exhaust unit 12 is formed along the axial direction of the drum 5 with respect to the opening width D, Since the trapezoidal shape is formed so as to be wider than the opening widths d and t of the portion where T is close, the temperature of the air supply inlet 13 and the exhaust outlet 14 at the portions 13b and 14b far from the heating unit 11 and the exhaust unit 12 is increased. As the amount of ventilation increases, the air supply inlet 13 and the exhaust outlet 14 are connected to portions 13a and 14a near the heating unit 11 and the exhaust unit 12, respectively. There ventilation of warm air is reduced, it is possible to pass substantially uniformly warm air over the axial direction of the drum 5. Therefore, in combination with the stirring by the rotation of the drum 5, the amount of warm air flow is made uniform throughout the drum, thereby preventing uneven drying of the object and efficiently drying the object.
[0034]
The rotation of the drum 5 in the drying process may be continued in the normal rotation, or may be alternately and repeatedly performed at predetermined time intervals. When such forward and reverse rotations are repeatedly performed, it is possible to disentangle the object to be processed and prevent partial drying failure.
In addition, the moisture evaporated by drying is discharged outdoors by forced exhaustion by the blower 28.
[0035]
This drying process is continued for a predetermined time set in the timer of the electric control device. When the predetermined time has elapsed, the rotation of the drum 5 is stopped and the operation of the blower 28 is stopped. Then, when the rotation of the drum 5 stops, the door 7 can be opened, and the user can take out the object to be processed dried in the drum 5 from the inlet 6.
[0036]
In the present embodiment, a thin object to be processed such as clothing is described as an example. However, the present invention can be applied to a drying process for a thick object to be processed such as a futon or a blanket. Further, in the present embodiment, a two-stage drying apparatus having only a drying processing function has been described as an example. However, it is needless to say that the present invention can be applied to a single drying apparatus, and that cleaning is performed in addition to the drying processing function. The present invention can also be applied to a washing, dehydrating and drying apparatus having a processing and dehydrating function.
[0037]
【The invention's effect】
As described above, according to the present invention, the following excellent effects can be obtained.
According to the first aspect of the present invention, the air supply inlet communicating with the heating unit and the exhaust outlet communicating with the exhaust unit are opened on the partition wall of the drying processing chamber, and the openings of the air supply inlet and the exhaust outlet are opened. The shape is formed such that the opening width of the front side portion of the processing chamber is wider than the opening width of the back side portion, so that uniform warm air can be achieved in the axial direction of the drum. The drying unevenness of the processed material can be prevented, and the processed material can be efficiently dried.
[0038]
According to the second aspect of the present invention, since the opening width of the air supply inlet and the exhaust outlet gradually increases from the back side to the front side of the processing chamber, the warm air flow rate is made uniform throughout the drum. Can be further promoted, uneven drying of the object can be prevented, and the object can be efficiently dried.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a drying apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic side view of the drying device shown in FIG.
FIG. 3 is a schematic front view showing an air supply inlet formed in a partition wall of a drying processing chamber in the drying apparatus of the present embodiment.
FIG. 4 is a schematic plan view showing an exhaust outlet formed in a partition wall of a drying processing chamber in the drying apparatus of the present embodiment.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 drying device 2 housing 3 shell 4 drying processing chamber 5 drum 6 input port 7 door 8 window 9 sealing material 10 back plate 11 heating unit 12 exhaust unit 13 air supply inlet 14 exhaust outlet 15 ring-shaped end plate 16 opening 17 circular End plate 18 Support shaft 19 Bracket 20, 21 Bearing 22, 24 Pulley 23 Motor 25 Belt 26 Rotary drive mechanism 27 Heating device 28 Blower 29 Intake side ventilation path 30 Exhaust side port 31 Lint filter 32 Control box

Claims (2)

A housing having a workpiece input section on the front side,
A drying processing chamber partitioned and formed in the housing;
A drum that is rotatably provided in the processing chamber in a horizontal state, has air permeability, and stores a workpiece to be loaded from the workpiece loading section;
A rotation drive mechanism for rotating the drum,
A heating unit arranged on the back side of the housing and heating air,
An exhaust unit that is arranged on the back side of the housing and sucks warm air in the processing chamber and discharges the air to the outside;
A drying device comprising:
On the partition wall that partitions the processing chamber, an air supply inlet communicating with the heating unit side and an exhaust outlet communicating with the exhaust unit side are opened,
A drying apparatus, wherein the opening shapes of the supply air inlet and the exhaust outlet are formed such that the opening width of the front side portion of the processing chamber is larger than the opening width of the back side portion. The drying device according to claim 1, wherein the opening widths of the air supply inlet and the exhaust outlet gradually increase from the back side to the front side of the processing chamber.

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