JPH021519B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention aims to provide a dry cleaner with low solvent loss.

Many of the solvents used in dry cleaners are harmful, so normally when the door is opened during washing, the blower turns and the exhaust valve is opened at the same time to exhaust the solvent vapor outside. However, during the washing process, a large amount of solvent is present in the washing drum, so if the solvent vapor is discharged outside as described above, a large amount of solvent in the drum will evaporate and be discharged outside, causing the solvent to evaporate. losses will increase.

The present invention is provided with a changeover switch, and when this switch is turned on, the blower motor is not rotated and the exhaust valve is also kept closed to reduce the loss of solvent, especially during washing operation. This is useful when adding another load of laundry to the machine.

The present invention will be explained below with reference to the drawings. 1 is a first tank that contains slightly dirty solvent that has been used once, 2 is a second tank that contains clean solvent after purification, and 3 is a washed tank. tank 4 is the first tank 1
Alternatively, there is a pump for sending the solvent in the second tank 2 into the washing tub 3, and 5 is a button trap for collecting buttons, lint, etc. that come off during washing. Furthermore, 6 is a drying ventilation passage in which a cooler 7, a heater 8, and a blower 9 are installed, and an intake valve 10 and an exhaust valve 11 are installed on the wall.
It is equipped with 12 is a soap inlet, 13 is a filter for filtering impurities in the solvent, and 14 is a distiller in which dirty solvent is distilled, and after condensing in a condenser 15, a water separator 16 is used to temporarily store water. Only the separated pure solvent is collected in the second tank 2.

FIG. 2 is a control block diagram when this dry cleaner is controlled using a microcomputer (hereinafter referred to as microcomputer).

In the figure, 17 is a CPU (central processing unit) that performs processing of the dry machine control system. 18 is an accumulator that temporarily stores the results of logical operations. A temporary register 19 temporarily stores the contents of the register array 20 during logical operations. 21 is an ALU (arithmetic logic unit) that performs arithmetic and logical operations on the contents of 18 and 19, and a flag 22 holds carries, borrows, etc. generated from these results. 23
is a control unit that outputs control and timing signals for the dry machine control system. 24 and 25 are address data buffers for transferring addresses and data between systems.

26 and 27 are ROM (Read
Only Memory (read-only memory).

28 and 29 are I/O devices, keyboard 3
0, an input port that reads data from switches 31 such as door switches and vibration switches, and lights up the LEDs (light emitting diodes) and fluorescent display tubes of the display units 32, 33, and 34, and turns on and off the external output 35. This is the output port for 36 is a RAM (Random) that reads and writes processing data.
Access Memory (write memory).

FIG. 3 is a detailed view of the keyboard 18 of FIG. After pressing the program 37 key, when the number key 38 is pressed, one block is extracted from the multiple fully automatic washing process data previously stored in the ROM-227, and the data is transferred to the RAM 3.
6 and press start 39 to run the fully automatic standard washing process.

When manual 40 is pressed, the time display device 34 shows 4:00.
is displayed, press function keys 41 to 50, and press start 39 to perform manual single operation.

If you want to set the set time to a time different from 4:00, press the function keys 41 to 50 and then press the number key 38 to change the set time. If you press the manual 40 key to switch to manual operation, the drying temperature is set to 55℃, so the drying temperature is 45℃.
If you press , the temperature will be controlled at 55℃. When changing the set temperature, after pressing the drying temperature 46, the temperature can be corrected to the desired temperature using the number key 38.

Function keys 41 to 50 are used to change the operating time of the process corresponding to each key in automatic operation. In particular, when the keys for tanks 1 to 49 and tanks 2 to 50 are pressed, the LEDs for tanks 1 to 51 and tanks 2 to 52 light up, as well as filter circulation 53, filter bypass 54, and batch (in this case, 53 and 54 are off). is displayed to show how to wash this step. After this, by pressing the filter circulation 55 or filter bypass 56 keys, the washing method for this process can be modified. In addition, function key 41~
If the process time is corrected using the number 38 key after pressing 50, if the total process time exceeds 100 minutes, a warning will be issued and the program will be returned to the standard process time. When switching to manual time, the function keys 41 to 50 are used to specify a single operation process and change the operation time.

The drying temperature key 46 is used to set the temperature of the drying process. Numerals 55 to 59 are keys for selecting special operations, and the filter circulation 55 key is used to set the cleaning process to filter circulation 55 washing.

The filter bypass 56 key is used when changing the cleaning process to filter bypass cleaning. This 5
Each time keys 5 and 56 are pressed, LED 53,
54 (Fig. 4) repeatedly turns on and off, and when the same key is pressed twice in succession, both LEDs 53 and 54 go out, and the washing process can be designated as batch washing.

The low liquid level key 57 is used when it is desired to finish the liquid supply for cleaning at the low liquid level of the drum. The washing strength key 58 is the washing motor (right) in the external output 35,
(Left) Reversal period: 20 seconds ON - 30 seconds OFF and 2 seconds
Used to switch between ON and 20 seconds OFF. The soap input key 59 is used to specify on/off of the automatic soap output in the external output 35.

FIG. 4, FIG. 5, and FIG. 6 show the FIG. 2 display section 32,
33 and 34 in detail. 60 fluorescent display tubes display the operating time of each process during operation, and 61
The segments .about.70 display program numbers of multiple fully automatic cycles. A fluorescent display tube 71 displays the temperature measured inside the dry machine. The temperature measured at the outlet of the cooler 7 is displayed in the two digits on the right. This cooler outlet temperature is always measured and displayed after the power is turned on. The two digits on the left side display the measured temperature at the inlet of the washing tub 3, which is measured and displayed after the start of operation.

51 to 54 and 72 to 77 are LED groups that display the operating processes. In a fully automatic cycle, the LEDs for all operating processes are lit before the start, and when the start key 39 is pressed to start operation, the LEDs for each process are lit.
Only the LED lights up. When the manual cycle is switched to by pressing the manual 40 key, only the LEDs corresponding to function keys 41 to 50 are lit.

Hereinafter, typical operations of the drying machine will be explained based on FIG.

When the power is turned on, the 6th fluorescent display tube segment
2 lights up, indicating that program [2] is set. Also, LED groups 51 to 54, 72
~77 is “from tank 1” 51 “from tank 2”
52, "To distiller" 72, "To tank 1" 73, "Deliquing" 74, "Drying" 76, and "Deodorizing" 77 are lit.

Also, at this time, the intake and exhaust valves 10 and 11 are open, and the odor inside the cylinder is discharged.

When you press the start 39 key, the operation time for each process is already determined, but after pressing the stop 78 key to stop the operation, press the 49 keys from tank 1, and press the number key 38 to start input. The value obtained becomes the operating time of the "washing and steaming process" from the new "tank" 1.

The operation cycle after pressing the start 39 key is as follows: ◎(R1) Supply liquid from tank 1, cleaning Tank 1 valve 79 opens and the cleaning motor rotates clockwise. The solvent in the tank 11 is pumped up by the pump 4, passes through the valve 80, and is supplied into the washing tub 3 through the valve 81. When the liquid level switch trips, valve 79 closes and the cleaning motor reverses from side to side. The reversal period is displayed by turning on and off the wash 83. During liquid supply, the soap input valve 86 is also opened, and the operating time is subtracted by 1 second elapsed.
The value is displayed by a fluorescent display tube 60.

◎(R2) Drainage to the distiller Valve 87 opens and the pump 4 drains the solvent in the washing tub 3, and the valve 88 drains the solvent into the distiller 14.
Drain for 15 seconds.

◎(R3) Deliquing into the distiller After rotating the cleaning motor clockwise for 10 seconds, switch to the deliquing motor and perform deliquing. At this time, if the vibration switch is activated, the dehydrating motor is stopped, and the cleaning motor is returned to the cleaning motor, which is operated from low speed to high speed as described above. When the machine is running at high speed, pressing the stop 78 key stops the dehydrating motor, rotates the cleaning motor for a predetermined period of time, and then applies the brake. During dewatering operation, when the door is opened, the washing motor also applies the brake.

◎(R4) Liquid supply from Kunku 2, cleaning Open tank 2 valve 89 and pour the solvent into valve 8.
1 to the washing tub 3. Other operations are _R1
It is similar to

◎(R5) Drain to tank 1 Open valve 87 to drain the solvent in the washing tub, and drain the solvent to tank 1 through valve 79.
This process time is 20 seconds, and the pump 4 does not operate.

◎(R6) Deliquid to tank 1 The solvent route is the same as R5. The operating time of this process can be modified using the number key 38 by pressing the deliquification 44 key.

◎(R7) Drying The operating time can be adjusted using the drying key 45. The washing motor rotates in reverse to loosen the cloth, and the hot air from the steam is applied to the clothes to dry them. When the drying temperature reaches the temperature set with the 46 key, the steam valve is stopped.
When the temperature drops 1°C below the set temperature, the steam valve is opened to control the temperature so that it always stays within a certain range.

◎(R8) Deodorization The time can be adjusted using the deodorization key 41. The suction and exhaust valves 10 and 11 are opened while the cleaning motor is reversed, and odor is removed by the high-speed blower motor.
In this process, even if the operation is stopped by pressing the stop key 78, the suction and exhaust valves 10 and 11 are opened to remove odors.

When all steps are completed, a buzzer will sound for 10 seconds to notify the completion. If the start 39 key is pressed in this state, the same fully automatic cycle will be repeated.

The above is an example of typical fully automatic cycle operation. When the start key 39 is pressed during operation, the fluorescent display tube 60, which displays the operating time of the current process, displays the remaining time until the fully automatic operation ends during the period in which the key is pressed.

Also, if you press the program 37 key, 51 to 54,
The display indicating all steps of the fully automatic cycle that was displayed before the start lights up on the LED group 72 to 77.

However, in conventional dry cleaners, when the door is opened in the middle of the process, solvent odor comes out from the door at the front of the machine.To prevent this, when the door is opened, the exhaust valve 11 is usually opened and the blower 9 is turned. Air is taken in through the door and exhausted through the exhaust valve 11. This is called door deodorization.

However, during the washing, draining, dehydrating, and drying steps, clothing contains a large amount of solvent, so opening the door during these steps will release the solvent contained in the clothing.
and the solvent that is filling the machine is forcibly discharged to the outside of the machine. Therefore, the amount of solvent consumed increases.

If it becomes necessary to add the following items during the cleaning process, do not immediately deodorize the door by opening the exhaust valve 11 and turning the blower 9 even after opening the door.
If the door is deodorized after a predetermined period of time, the amount of solvent consumed can be reduced. If you want to focus on safety, even if you sacrifice some solvent loss, press the door deodorization switch 90 key on the keyboard in Figure 3 to deodorize the door at the same time as you open the door. This embodiment is shown in the flowchart (FIG. 7).

While the operation continues after pressing the start key 39, the ALU 21 constantly checks the status of the door switch for loading clothes and the status of the door deodorization switch 90 key, and if the door is closed and the door switch is on, the ALU 21 turns on the blower 9. At the same time, the exhaust valve 11 is closed to perform cleaning. When the door is open and the door deodorization switch 90 key is pressed, the blower 9 rotates and the exhaust valve 11 opens simultaneously to deodorize the door. Also, if the door is open and the door switch is off, but the door deodorization switch 90 key is not pressed, it is possible to check if the cleaning process is currently in progress, or if the draining process is in progress.
Check whether the ALU21 is in the dewatering process or drying process.
If the door is not in any of these steps, that is, if it is in the deodorizing step, the blower 9 is rotated and the exhaust valve 11 is simultaneously opened to deodorize the door. In addition, when any one of the cleaning, draining, deliquing, and drying steps is being performed, the ALU 21 calculates how many minutes have passed since the door was opened, and the ALU 21 calculates the number of minutes that have passed since the door was opened, and the ALU 21 calculates the number of minutes that have passed since the door was opened. sounds the buzzer to issue an alarm. This predetermined time is longer than the time required to add additional clothing. When a predetermined period of time has elapsed, the blower 9 rotates and the exhaust valve 11 opens to deodorize the door and prevent solvent vapor from flowing out into the workplace from the clothes input port.

As described above, the present invention performs door deodorization in which when the clothes loading door is opened during operation, the blower 9 is operated and the exhaust valve 11 is simultaneously opened to exhaust the solvent vapor in the washing tub 3 to the outside. With the door deodorization switch key 90, you can select whether to deodorize the door or not. There is no loss of solvent when the door is open, and since an alarm is issued while the door is open, there is no need to forget to close the door. Furthermore, since the door is deodorized after a predetermined period of time has elapsed after the door is opened, solvent vapor will not leak into the workplace from the door.

[Brief explanation of drawings]

Fig. 1 is a solvent circuit diagram of the dry cleaner of the present invention, Fig. 2 is a diagram of information transmission paths inside and outside the microcomputer, Fig. 3 is a front view of the keyboard, Fig. 4 is a process display section, and Fig. 5 is a time display section. , FIG. 6 is a temperature display section, and FIG. 7 is a flow chart. 26, 27...ROM, 36...RAM, 21...
ALU, 90...Door deodorization switching key.

Claims (1)

[Claims] 1. A read-only memory (ROM) that stores the cleaning process, a write memory (RAM) that reads and stores the necessary cleaning process from the ROM, and an arithmetic logic unit (ALU), In response to signals from the door switch and deodorization switch key, the device either immediately performs door deodorization by rotating the blower motor and exhausting solvent vapor from the exhaust valve, or
A dry cleaner that determines whether to deodorize the door after issuing an alarm for a certain period of time.