JP3152540B2 - Rotary dehydrator for washing laundry - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary dewatering machine for washed laundry, and more particularly to a structure suitable for a commercial rotary dewatering machine (including a washing laundering dewatering machine) incorporated in a washing line. is there.

[0002]

2. Description of the Related Art Washing and washing lines for clothes, sheets, etc.
It is formed by connecting a washing machine and a dehydrator (or a washing dehydrator), a dryer and an ironer by a conveyor. As the dehydrator, a roller press type dehydrator (squeezing machine) or a rotary dehydrator is used, but the press type dehydrator has a drawback that the fasteners attached to the clothes are damaged. On the other hand, a rotary dewatering machine separates water from laundry by centrifugal force by storing laundry in a rotating body formed of a perforated plate or mesh plate and rotating it at high speed. There is a problem that the laundry sticks to the inner peripheral surface of the rotating drum and the laundry cannot be discharged smoothly from the dehydrator.

[0003] In order to separate the laundry from the rotating drum after dewatering, a shaker is attached to the dehydrator and the rotating drum is vibrated (usually together with the outer drum) so that the laundry is shaken off the rotating drum. A pressurized air chamber and an air damper are provided above the outer peripheral surface of the outer drum, and after the dewatering, the damper is suddenly opened, and air is blown from the outside to the outer peripheral surface of the rotary drum to stretch the outer drum. A dehydrator having a structure for removing the attached laundry has been proposed.

[0004] In addition, the sticking of the laundry to the rotating drum during dehydration is more likely to occur as the water content of the laundry is rapidly removed. A method for preventing the sticking of the laundry to the rotating drum by adhering to the main dehydration by rotating the rotating drum at a high speed and gradually separating the water from the laundry into a plurality of times has also been proposed. ing.

[0005]

As described above, various attempts have been made to prevent the laundry from sticking to the rotating drum of the rotary dehydrator and to automatically peel the laundry sticking to the rotating drum. However, with the conventional means, 100% of the dehydrated laundry cannot be reliably removed from the rotating drum.

[0006] In an automated washing line, it is necessary that the operation of each device be performed 100% reliably.
Even if the occurrence rate is low, if a malfunction or a malfunction appears to occur, automation is difficult to achieve. In the above-described method in which the laundry is peeled from the rotating body by the vibration or the air blow, by increasing the amount of vibration, the air blowing speed, and the blowing area, the peeling can be performed by nearly 100%. However, there are problems such as an increase in machine life, a reduction in machine life, and a deterioration in the working environment, and there are certain practical limits. The present invention provides technical means for solving the above-mentioned conventional problems at once with a very simple structure.

[0007]

SUMMARY OF THE INVENTION The present invention proposes a rotary dehydrator in which a Teflon coating 7 is applied to the inner peripheral surface of the rotary drum 1. The above object has been achieved by using stop or vibration together. Low-speed rotation of rotating body 1
It is more preferable to adopt a dehydration process including a preliminary dehydration and a main dehydration with rolling and stopping to reduce the sticking of the laundry 4 to the rotating drum 1.

That is, in the rotary dehydrator for washing laundry according to the present invention, the brake device 12 for suddenly stopping the rotation of the rotary drum 1
And a Teflon coating 7 on the inner peripheral surface of the rotating drum 1.
Have been subjected, peeling the laundry 4 suddenly stopping the after the rotation to perform dehydration of rotating cylinder 1 a high-speed rotation and the rotary laundry contained in drum and 4 from the inner peripheral surface of the rotating drum 1 It is characterized by doing.

Further, the rotary dewatering machine for washing laundry according to the present invention is provided with a vibrator 18 for exfoliating the laundry 4 stuck to the inner peripheral surface of the rotating drum 1 at the time of rotary dehydration. In the rotary dehydrator, the inner peripheral surface of the rotary drum 1 is coated with Teflon coating 7.

[0010]

In the above two inventions, the process controller 13 for controlling the rotation speed and start / stop of the rotary drum 1
The process controller performs a series of rotation operations including a rotation 15 for one or more pre-dehydration operations having a low rotation speed and a subsequent high-speed rotation 16 for the main dehydration operation. The dehydration step can be performed by instructing the motor 9.

[0012]

It is a well-known fact that the Teflon coating 7 prevents dirt and processing objects from adhering to the processing apparatus. However, the rotary drum 1 of the rotary dehydrator is formed of a stainless steel plate having a smooth finished surface. Since the laundry itself is not adhesive, the surface treatment of the inner peripheral surface of the rotary drum 1 was not expected to easily cause the laundry to peel off. Also, merely by coating the inner circumferential surface of the rotating drum 1 with the Teflon coating 7 does not necessarily achieve 100% certainty of the peeling of the laundry, but also uses mechanical means such as sudden stop of the rotating drum 1, vibration, and air blow. Only then can 100% reliable peeling be realized.

According to the present invention, the present invention is based on the expectation that the laundry 4 can be peeled off from the rotating drum 1 by suddenly stopping the rotating drum 1 after dehydration. Satisfactory results were not obtained only by sudden stop of rotation, and as one attempt to obtain better results, when the rotating drum 1 was coated with Teflon, it was much more than expected. The effect was obtained. And subsequent research confirmed that even with the conventional peeling method using vibration or air blow, the use of the Teflon coating 7 on the rotating drum 1 can achieve 100% reliable peeling of the laundry at a practical level. Was done.

Further, the method of separating the water content of the laundry 4 by preliminary dehydration by the low-speed rotation 15 of the rotary drum 1 and main dehydration by the high-speed rotation 16 weakens the adhesive force between the rotary drum 1 and the laundry 4. Combined use with the Teflon coating of No. 1 makes it possible to achieve 100% reliable peeling of the laundry more easily (downsizing of the brake for sudden stop, downsizing of the vibrator, reduction of the air amount of the air blower, etc.).

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. 1 to 3 show a first embodiment of the present invention. The rotating drum 1 of the rotary dewatering machine is fixed in a cantilevered state to one end of a rotating shaft 3 horizontally supported by bearings provided on an outer drum 2, and an end face of the rotating drum 1 on the side opposite to the rotating shaft is:
An opening for charging and discharging the laundry 4 is provided. As shown in FIG. 2, the peripheral surface of the rotary drum 1 is made of a meshed stainless steel plate 6 by forming a large number of rectangular drain holes 5, and a Teflon coating 7 is provided on its inner peripheral surface by a conventional method. Have been. A pulley 8 is fixed to the rotating shaft 3 that fixes the rotating body 1, and is drivingly connected to a motor 9 by a belt 10. A brake 12 is provided on a rotating shaft 11 of the motor 9, and the process controller 13 controls the motor 9 and the brake 12.

The process controller 13 controls the motor 9 as shown in FIG. The vertical axis in FIG. 3 is the rotation speed of the motor 9, and the horizontal axis is time. When the laundry 4 is put into the rotating drum 1 and the dehydration process is started, the process controller 1
3 performs the preliminary dehydration twice, in which the motor 9 is rotated at a low speed 15 for a predetermined time and then stopped. Then, the motor 9 is rotated 16 at a high speed to perform the main dehydration, and after a predetermined time has elapsed, the power of the motor 9 is turned off and the brake 12 is operated to quickly stop the motor 9. Next, the motor 9 and the brake 12 are alternately operated, and the rotation and the sudden stop of the motor 9 are performed a plurality of times, whereby the laundry 4 attached to the rotating drum 1 is peeled off and dropped. By repeating the rotation of the motor 9 and the sudden stop of the laundry 4 for 3 to 4 times, the laundry 4 attached to the rotating drum 1 can be completely removed 100%.

FIG. 4 shows a second embodiment of the present invention, in which a vibration exciter (vibrator) 1 for peeling laundry is provided on an outer shell 2.
8 shows a rotary dewatering machine provided with 8. A Teflon coating 7 is applied to the inner peripheral surface of the rotating drum 1 in the same manner as in the first embodiment. FIG. 5 shows a third embodiment of the present invention, in which a pressurized air chamber (air damper) is provided at both shoulders of the outer shell 2, and the air damper 19 allows the rotary drum 1 to rotate. Air outlet 2 provided toward the peripheral surface
0 is provided with a shutter 21. Also in the third embodiment, the inner peripheral surface of the rotary drum 1 is coated with Teflon.

In such a structure, the rotating drum 1 is rotated at a high speed, and after the spinning of the laundry 4 in the rotating drum 1 is completed, the vibrator 18 is operated while the rotating drum 1 is slowly rotated, or the shutter is rotated. The laundry 4 stuck to the inner peripheral surface of the rotating drum 1 is peeled off by opening the air damper 19 and blowing the air in the air damper 19 toward the peripheral surface of the rotating drum 1. According to an experiment conducted by the applicant, in the case of the structure of FIG. 4, the vibrator 18 is operated for about 30 seconds, and in the case of the structure of FIG. It was possible to peel 100% of the laundry stuck to the surface.

[0019]

According to the present invention described above, the laundry stuck to the inner peripheral surface of the rotating drum during the spinning and dewatering can be reliably peeled off after the spinning is completed. It is easy to automatically discharge the laundry on the inner surface of the rotating drum onto the conveyor, and the dehydrated laundry does not remain in the dewatering machine in a state of being stuck to the rotating drum. Automation and labor saving can be realized. In addition, the structure is extremely simple, which increases the cost of the dehydrator and eliminates the need for a robot for discharging the laundry, so that the washing line can be more easily automated and the operation reliability can be increased. .

[Brief description of the drawings]

FIG. 1 is a schematic front view showing a rotary dewatering machine according to a first embodiment.

FIG. 2 is a partially enlarged perspective view of a rotating drum.

FIG. 3 is a time chart showing a dehydration process.

FIG. 4 is a schematic front view showing a rotary dewatering machine according to a second embodiment.

FIG. 5 is a schematic front view showing a rotary dewatering machine according to a third embodiment.

[Explanation of symbols]

 1 Rotary body 4 Laundry 7 Teflon coating 9 Motor 12 Brake 13 Process controller 15 Low speed rotation 16 High speed rotation 18 Vibration rod 19 Air damper

Claims (3)

(57) [Claims] A rotating device (1) is provided with a brake device (12) for suddenly stopping the rotation of the rotating drum (1), and a Teflon coating (7) is applied to an inner peripheral surface of the rotating drum (1). ) was dehydrated in a high speed rotation to laundry contained in the rotating drum (4) Oh
A rotating dewatering machine for washing laundry , wherein the rotation is suddenly stopped and the laundry (4) is peeled off from the inner peripheral surface of the rotating drum (1). 2. A laundry rotary dewatering machine provided with a vibrator (18) for peeling off a laundry (4) stuck to an inner peripheral surface of the rotary drum (1) at the time of rotary dewatering. (1) is characterized in that the inner peripheral surface is Teflon coated (7),
Rotary dehydrator for washing laundry. 3. A process controller (13) for controlling the rotation speed and start / stop of the rotating drum (1), the process controller comprising a rotation stop (15) for one or more times of preliminary dehydration at a low rotation speed. ), Followed by a high-speed rotation for the main dehydration (16), and performing a dehydration step by instructing the drive motor (9) of the rotary drum (1) a series of rotation operations including the rotation operation, A rotary dewatering machine for washing laundry according to claim 1 or 2 .