JPH09327598A - Drying device for laundry - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an equipment cost and a labor cost required for transferring laundry by directly sucking dried laundry from a drier to an air conveyor at the time of discharging the dried laundry from the drier of a form for drying the laundry inside a rotary barrel. SOLUTION: This drying device is provided with the drier 1, an air tube 3, a receiver box 4, a discharge blower 5 and a controller. The receiver box 4 is provided with a freely openable and closable door 41 on a lower surface, one end 31 of the air tube 3 is connected to the case body 12 of the drier and opened to the end face of the rotary barrel 14 and the other end 32 is connected to the receiver box 4. The discharge blower 5 sucks and discharges air inside the receiver box 4 at the time of an operation. The controller rotates the rotary barrel 14 at the time of the operation of the discharge blower 5 by a rotation number different from the rotation number at the time of drying. Accompanying the rotation of the rotary barrel, the dried laundry is detached from the rotary barrel in an order and led to the air tube.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drying device characterized by means for discharging laundry from a dryer,
The present invention relates to a drying device having means for automatically discharging dried laundry from a dryer of a type in which laundry is put into a cylindrical or polygonal rotary drum and the rotary drum is rotated to dry the laundry. is there.

[0002]

2. Description of the Related Art A rotary-cylinder laundry dryer has a cylindrical or polygonal rotary cylinder that rotates around a horizontal axis in a housing, and a blower that generates an air flow passing through the rotary cylinder. , And a heater for heating the passing air. The case is equipped with a door that opens on the small surface (end face in the axial direction) of the rotating drum. Wet laundry is opened by opening this door, and dried laundry is opened by this door. Taken out.

In a laundry system for continuously processing a large amount of laundry, a belt conveyer is generally used to convey the laundry taken out from the dryer to a wrinkle spreading device such as a press or an ironer. In this case, the work of transferring the laundry from the dryer to the conveyor is often performed manually, but the washing means adopting a discharging means for inclining the rotating drum to drop the dried laundry on the conveyor. The device is known. Also, when it is necessary to convey laundry in a three-dimensional route, such as when drying on the first floor of the building and wrinkling on the second floor, the laundry is carried by an air conveyor, that is, the air flow in the air tube. Means for transporting are also adopted. When using such an air conveyor, the laundry taken out from the dryer is once placed on the belt conveyor, and then the laundry is sucked into the air conveyor.

[0004]

When the laundry is conveyed by the air conveyor, the laundry taken out from the dryer is first placed on the belt conveyor and then guided to the air conveyor. Even if you try to suck the items directly into the air conveyor and try to discharge them, the laundry may be caught in the suction port of the air conveyor, or a large amount of laundry may be sucked in at one time and the air tube may become clogged. This is because it cannot be performed reliably and stably.

Therefore, the present invention enables the dried laundry in the dryer to be directly sucked into the air tube of the air conveyor without clogging the tube, which is necessary for discharging the laundry from the dryer. The challenge is to reduce equipment costs and personnel costs.

[0006]

The laundry drying apparatus of the present invention comprises a dryer 1, an air tube 3, a receiver box 4, a discharge blower 5, and a controller 6.
The dryer 1 includes a rotary drum 14 that rotates around a horizontal axis in a housing 12 thereof, and a drive motor 1 that rotationally drives the rotary drum 14.
5 is provided. The receiver box 4 includes a door 41 that can be opened and closed on the lower surface. The air tube 3 has one end 3
1 is connected to the housing 12 of the dryer and opens at the small surface of the rotating drum 14, and the other end 32 is connected to the receiver box 4. The discharge blower 5 is connected to the receiver box 4 on the suction side and sucks and discharges the air inside the receiver box 4 during operation. The controller 6 causes the rotating drum 14 to rotate at a rotational speed different from the rotational speed during drying when the discharge blower 5 operates.

In the laundry drying apparatus of the second aspect, the control means 6 starts rotating the rotating drum 14 at a rotation speed higher than the rotation speed at the time of drying when the discharge blower 5 is operated, and then sequentially decreases the rotation speed. It is characterized by doing.
According to the third aspect of the present invention, the cover 22 that can be opened and closed is provided on a portion of the upper side surface of the housing 12 of the dryer facing the outer peripheral surface of the rotary drum 14.
The control means 6 is characterized in that when the discharge blower 5 operates, the control means 6 rotates the rotary drum 14 at a rotational speed lower than the rotational speed during drying and opens the cover 22.

[0008]

In the device of the present invention, one end 3 of the air tube 3 is
When 1 is connected to the casing 12 of the dryer and opened on the small side of the rotating drum 14 and the discharge blower 5 is operated to suck the laundry into the air tube 3, the rotation of the rotating drum 14 should be changed. The laundry in the rotary cylinder 14
By gradually separating from at a slow interval,
This prevents the laundry from being caught at the inlet of the air tube 3 and from clogging the air tube 3 due to a large amount of laundry being sucked into the air tube 3 in the primary order.

According to the second aspect of the present invention, the rotary drum 14 is once rotated at a high speed so that the dried laundry is attached to the peripheral surface of the rotary drum 14 by centrifugal force, and then the rotation speed of the rotary drum 14 is sequentially reduced. Rotating cylinder 1
It is separated from 4 and is sucked into the air tube 3. According to the invention of claim 3, when the discharge blower 5 is operated to suck the laundry in the dryer 1 into the air tube 3, the air is sucked from a position above the outer peripheral surface of the rotating drum having air permeability. As a result, the laundry attached to the rotary cylinder is sequentially released by this air and guided to the air tube 3. Since the rotating cylinder 14 is rotating slowly, the laundry is sequentially separated according to the rotation.

When operating the discharge blower 5, the door 41 of the receiver box is closed and the air tube 3 is closed.
The laundry that has passed through is temporarily stored in the receiver box 4. After the laundry in the dryer is discharged and the discharge blower 5 is stopped, the door 41 of the receiver box is opened,
The dried laundry in the receiver box 4 is dropped and discharged to a desired position.

[0011]

1 to 3 are views showing an embodiment of the present invention. 1 and 2, the dryer 1 is
A housing 12 supported by legs 11 and a horizontal shaft 13 on the housing 12.
The rotary cylinder 14 is rotatably supported around the rotary cylinder 14 and a motor 15 for rotating the rotary cylinder. Rotating body 1
4 is driven by the motor 15 and rotates in the direction indicated by arrow A in FIG.

An opening 2 is provided in an upper part of a side surface of the housing 12 on a side where the rotary drum 14 moves upward, and an opening 2 is provided so as to face an outer peripheral surface of the rotary drum 14, and a spring hinge 21 provided on a lower side of the opening 2 is provided in this opening.
The cover 22 biased in the closing direction is attached. A solenoid 25 is mounted between brackets 23 and 24 provided upright on the outside of the cover 22 and the outside of the housing 12.
When the solenoid 25 is energized, the operating rod of the solenoid 25 retracts and the cover 22 is opened.

One end 31 of the air tube 3 of the air conveyor that forms the conveyance path of the dried laundry is connected to the casing 12 of the dryer, and is opened at the small surface of the rotary drum 14.
The opening position of the air tube is most preferably provided slightly below the center position of the forehead surface of the rotary drum (see the phantom line in FIG. 2). The other end 32 of the air tube is connected to the side surface of the receiver box 4 and opens inside the receiver box 4. At one place of the air tube 3, the pressure sensor 3
1 is provided, and the passage of the laundry in the air tube is detected by the pressure fluctuation when the laundry passes through the air tube 3.

The receiver box 4 is a box provided with a door 41 that can be opened and closed on the lower surface, and is provided above the end point of conveyance of dried laundry. To the receiver box 4, an exhaust blower 5 that sucks and exhausts the air in the box is connected. A strainer is attached to an inlet opening of the discharge blower on the side of the receiver box so that the laundry is not sucked into the discharge blower 5.

FIG. 3 is a block diagram showing a control system of the laundry drying apparatus shown in FIGS. The controller 6 sets a timer 61 for setting the drying time, a rotating speed setting device 62 for setting the rotating speed of the rotating rotating drum, and a rotating speed of the rotating drum for discharging the laundry from the dryer. It includes an in-discharge rotational speed setting device 63 and an arithmetic and control unit 64. In the discharging rotation speed setting device 63, a rotation speed different from that in the drying rotation speed setting device 62 is set. An inverter 65 is provided in the power supply circuit of the motor 15 for driving the rotary drum, and the rotation speed setting device 6
The motor 15 rotates at a rotation speed corresponding to the rotation speed set at 2 or 63. The detection signal of the pressure sensor 33 provided on the air tube is given to the controller 64.
An interface circuit 66 and a drive circuit 67 are provided between the controller 64 and the detector, inverter, solenoid, etc.

Next, the operation of the apparatus shown in FIG. 3 will be described. During the drying time, the heater 16 and the blower 17 of the dryer are simultaneously operated while the rotating drum 14 is rotationally driven at the rotation speed set by the during-drying rotation speed setting device 62, and the laundry is dried. . When the drying time set in the drying time setting timer 61 has elapsed, the power supply circuit for the discharge blower 5 and the solenoid 25 for opening and closing the cover is turned on, and at the same time, the rotation speed of the rotary cylinder drive motor 15 is set to the discharging rotation speed setting device 63. Is converted to a value corresponding to the rotation set in.

According to the third aspect of the invention, the rotation speed setting means 63 during discharge is set to a rotation speed lower than that during drying, and by the above operation, it passes through the inside of the rotary drum 14 from the opening 2 of the casing of the dryer. An airflow is generated through the air tube 3 to the receiver box 4, and the rotating drum 14 slowly rotates in the direction of arrow A in FIG.

In this state, the laundry stuck to the rotating cylinder 14 is peeled off from the rotating cylinder 14 in sequence as the rotating cylinder 14 slowly rotates and falls, and is sucked into the air tube 3. Then, it is conveyed into the receiver box 4.

According to the second aspect of the present invention, a plurality of rotation speeds (for example, eight kinds) higher than that during drying are set in the discharging rotation speed setting means 63, and the setting values are sequentially lowered by the operation of the interval timer or the like. And move. By this operation, the rotary cylinder 14 first rotates at high speed, and the dried laundry is attached to the peripheral surface of the rotary cylinder 14 by centrifugal force. Next, as the rotation of the rotary drum 14 is gradually changed to the low speed side, centrifugal force is gradually reduced, and the laundry in a state where it is easily peeled off is sequentially removed, and is conveyed to the receiver box 4 through the air tube 3. . In the case of the second aspect, it is not necessary to open the cover 22 of the opening 2, and the opening 2 may not be provided.

When the detection signal of the pressure sensor 33 does not change for a certain period of time, it is judged that all the laundry has been discharged, the power of the discharge blower 5 is cut off, the discharge blower 5 is stopped, and at the same time, the rotary cylinder drive motor. Stop 15. After that, the door 41 of the receiver box is opened to drop the dried laundry at a desired final conveyance position.

[Brief description of drawings]

FIG. 1 is a schematic view of the entire apparatus showing a dryer in a side view.

FIG. 2 is a schematic front view of a dryer.

FIG. 3 is a block diagram showing a control system.

[Explanation of symbols]

 1 Dryer 3 Air Tube 4 Receiver Box 5 Discharge Blower 6 Controller 12 Housing 14 Rotating Body 15 Motor 22 Cover 31 One End 32 The Other End 41 Door

Claims (3)

[Claims] 1. A dryer (1) equipped with a rotating drum (14) which rotates around a horizontal axis in a casing (12) and a drive motor (15) for rotationally driving the drum (1), and a door which can be opened and closed on a lower surface. A receiver box (4) provided with (41), one end (31) of which is connected to the casing (12) of the dryer and which is open to the small face of the rotary drum (14) and the other end (32) of which is the receiver described above. Air tube (3) connected to box (4)
The exhaust blower (5) that sucks and discharges the air inside the receiver box (4), and the rotary cylinder (1) when the exhaust blower (5) is operating.
A drying device for laundry, comprising: a control means (6) for changing the rotation speed of 4). 2. The control means (6) starts rotating the rotating drum (14) at a rotational speed higher than that during drying when the discharge blower (5) operates, and then sequentially reduces the rotational speed. The laundry drying apparatus according to claim 1, wherein the laundry drying apparatus is provided. 3. A rotary drum (1) on the upper side of the casing (12) of the dryer.
An opening (2) having a cover (22) that can be opened and closed is provided in a portion facing the outer peripheral surface of (4), and the control means (6) controls the rotation of the rotating drum (14) during the operation of the discharge blower (5) during drying. The laundry drying device according to claim 1, wherein the cover (22) is opened while rotating at a rotational speed lower than a predetermined value.