JPH0667435B2 - Drying temperature display device for dry cleaner - Google Patents

Description

The present invention relates to a drying temperature display device for a dry cleaner capable of setting the temperature of drying air and displaying the temperature.

[Conventional technology]

FIG. 4 shows an outline of a conventional dry cleaner for washing clothes and the like using an organic solvent such as Perchlor ethylene. Generally, when the clothes 2 are put in through the door and the door 1 is closed and the operation is started, The process proceeds in the following order.

The solvent 4 is pumped up from the solvent tank 3 via the valve 5 by the pump 6, and the required amount of the solvent 4 is sent to the processing tank 10 through the path including the valve 7 and the filter 8 or the path including the valve 9.

The processing drum 11 is slowly rotated by the cleaning motor 44, and the solvent 4 is passed through the processing tank 10, the button trap 12, the valve 13, the pump 6, and the circuit including the valve 7 and the filter 8 (hereinafter referred to as a filter circuit) or the circuit including the valve 9. (Hereinafter referred to as a pump circuit) is circulated to wash the clothes 2.

The treatment tank 10, the button trap 12, the valve 13, the pump 6, the valve 14, the distiller 15 are used to drain the liquid, and then the treatment drum 1
1 is rotated at a high speed by the liquid removal motor 45 and the solvent 4 in the clothing 2
Centrifuge and drain similarly. With the above, the pre-washing in the first step is completed.

Next, it is the main washing of the second step, and the above steps are repeated.

The processing tank 10, the button trap 12, the valve 5, and the valve 13 are used to drain the solvent to the solvent tank 3, and then the processing drum 11 is rotated at a high speed by a draining motor 45 to centrifuge the solvent 4 of the clothing 2 to drain the liquid. To do. This completes the main wash.

Next, in the third step of drying, the processing drum 11 is slowly rotated again by the cleaning motor 44, and the fan 16 and the air cooler 1
7, Recovery air duct 19 consisting of air heater 18 and processing tank
Air is circulated between 10 in the direction of arrow 20 to dry the garment 2. The solvent gas evaporated from the clothes 2 is condensed by the air cooler 17, enters the water separator 22 through the recovery path 21, and enters the clean tank 24 through the solvent pipe 23.

When the drying is completed, the next step is deodorization in the final step, the dampers 25 and 26 open as shown by the broken line, fresh air is taken in from the damper 25, and the uncondensed solvent gas that cannot be collected by the air cooler 17 is exhausted from the damper 26, and the clothes are removed. Deodorize the solvent odor in 2.

The above is one example of the process from cleaning of the dry cleaner to drying / deodorization. A control block diagram for performing these controls is shown in FIG. 5, and an example of the operation panel is shown in FIG.

Reference numeral 31 is a dry cleaner for washing clothes, which has the structure described in the example of the above process. 32 is a dry cleaner 31
An operation panel for operating the, and a control device 33 for controlling the operation of the dry cleaner 31. The operation panel 32 includes, for example, a program selection switch 34 for selecting eight kinds of operation programs (explanation omitted), a step omitting switch group 35a to 35d used when omitting a step included in the operation program, and an operation time of the operation program. Time setter group 36a ~ 36d used when correcting, time table 37 for displaying the required operating time,
Number of times display 38 for displaying the number of times of washing, indicator lamps 39a to 39i for displaying the washing process and the operation method of each process, start switch 40 for operating the dry cleaner 31, clothing 2 in the drying process
A liquid expansion type thermometer 41 for determining the drying temperature of is attached.
The thermometer 41 is provided with a setting pointer 42 for setting the drying temperature, a display pointer 43 for displaying the drying temperature, and an electric contact 46 which is closed when the drying temperature exceeds a set value.

The control device 33 includes a central control device 47 composed of an electronic circuit which is the center of control of the dry cleaner 31, an electronic storage device 48 storing eight kinds of operation programs, and a dry process based on an instruction from the central control device 47. There is an output circuit 49 for operating a given device of the cleaner 31.

[Problems to be solved by the invention]

In the dry cleaner having the control device 33, the clothing 2 shown in FIG. 4 is inserted from the door 1 and the program number is selected by the program selection switch 34 of the operation panel 32, and the setting pointer of the thermometer 41 is set.
If you set the drying temperature with 42 and press the start switch 40,
The washing method is naturally decided, and the operation described in the example of the process is automatically performed.

However, since the thermometer 41 is a liquid expansion type thermometer, the response is extremely poor, and even if the drying temperature exceeds the set value of the setting pointer 42, the display pointer 43 is greatly overrun and an accurate temperature cannot be displayed. Above the processing drum 11 shown in FIG.
Spin at high speed to centrifuge the solvent 4 in the garment 2,
At the time of so-called liquid removal, the setting pointer 42 and the display pointer 43 may chatter due to mechanical vibration of the dry cleaner, and the thermometer 41 itself has a surface lacking reliability. Also, due to the recent diversification of clothing, there is a tendency to set the drying temperature delicately.Therefore, there is a point that the thermometer with poor responsiveness is insufficient in response, and accurate and reliable temperature control is demanded. It was

Therefore, it is an object of the present invention to provide a dry temperature display device for a dry cleaner, which enables fine temperature control, improves reliability, and makes it easy to understand the dry temperature state at a glance.

[Means for solving problems]

In order to achieve the above object, the present invention uses a microcomputer as a temperature controller for the drying temperature of a drying gas and the like, and uses a plurality of two-color light emitting diodes as a means for setting and measuring the temperature, and one of them is used. Are arranged in the shape of a bar graph, and the difference between the set temperature and the actually measured temperature and the actually measured temperature portion are displayed in correspondence with each color.

[Action]

Since it is configured as described above, not only fine temperature control can be performed, but also the state of the drying temperature can be easily understood at a glance.

〔Example〕

A dry temperature display device for a dry cleaner according to the present invention will be described below with reference to the drawings.

FIG. 1 shows only the block related to temperature control among the control blocks of the dry cleaner. FIG. 2 shows an example of the operation panel for temperature setting and temperature display of the dry cleaner operation panel. FIG. 3 shows an example of the lighting state of the light emitting diode for temperature setting and temperature display. 51 is a thermocouple,
A temperature detecting end composed of a thermistor or the like, and a thermistor is used here, which is attached to the portion B of the recovery air duct 19 shown in FIG. Reference numeral 53 denotes a resistance, which is a partial pressure with respect to the resistance value of the thermistor 51 and generates a voltage proportional to the temperature in the portion A. 54 is an A / D that converts the analog voltage proportional to the temperature generated in the A section to digital
It is a converter. 55 is a cleaning device including temperature control
It is a central processing unit (CPU) that controls 52. Reference numeral 56 denotes a ROM (read-only memory) that stores a washing program and a control sequence of the cleaning device 52 including temperature control. 57 temporarily stores the temperature setting value and data necessary for controlling the cleaning device 52.
RAM (write memory). This RAM57 is OF
Since the memory contents are erased when F (OFF) is set, the battery 58 is provided to back up this. 59 is a valve or motor of the cleaning device 52 (neither is shown)
Is an output circuit for operating the. Reference numeral 60 denotes a panel interface for exchanging signals with the CPU 55 and an operation panel 61 arranged on the front panel of the cleaning device 52, which includes temperature setting and display.

Reference numerals 62 and 63 are temperature setting up keys and down keys for changing the drying temperature setting, respectively.

64a to 64o are green color groups of color light emitting diodes that display the setting state of the drying temperature, and these are arranged on the operation panel 61 in a bar graph shape. Reference numerals 65a to 65o are red color groups of two-color light emitting diodes that display measured temperatures of the drying temperature, and these are arranged on the operation panel 61 in a bar graph shape.

The up key 62 and the down key 63 can both be set in units of 2 ° C, but not limited to this, if the number of light emitting diodes is increased, it can be set in units of 1 ° C or 0.5 ° C, and conversely 5 ° C.
The unit can be set arbitrarily.

Next, the operation of the dry temperature display device for a dry cleaner configured as described above will be described. Here the drying temperature
The case of drying at 60 ° C will be described. When you press the temperature setting up key 62, each time you press the green LED 64a
4b and 64c turn green in order, and when 64j turns on, stop pressing the temperature setting up key 62. With this, the green light emitting diodes 64a to 64j up to 60 ° C are turned on, and a kind of green bar graph is formed. When lowering the temperature setting, the temperature setting down key 63 may be pressed.

These key operations are performed via the panel interface 60.
It is transmitted to the CPU55, and the CPU55 outputs R based on the command from the ROM56.
Store the temperature setting status in AM57. At the same time, the temperature setting display green groups 64a to 64j are turned on from the CPU 55 via the panel interface 60.

Since the RAM 57 is held by the battery 58, the contents are stored even when the power is turned off, and the temperature setting display green color groups 64a to 64j up to 60 ° C. are turned on again when the power is turned on.

It is assumed that the start-up switch (not shown) is pressed, the cleaning device 52 is operated and the drying process is started in one example of the process. When entering the drying process, CPU55 is instructed by RAM56
Operates a predetermined circuit of the output circuit 59 to move the cleaning device 52 between the recovery air duct 19 composed of the fan 16, the air cooler 17, and the air heater 18 described in FIG. Circulate and dry Garment 2. The air heater 18 heats the circulating air, and may use steam or electricity as a heat source. The temperature of the air heated by the air heater 18 is detected by the thermistor 51 attached to the B portion of the recovery air duct 19, and the air heater 18 is controlled so as to have a constant temperature.

When the thermistor 51 detects the temperature, it has a resistance value proportional to the temperature, which is divided by the resistor 53 to generate an analog voltage, which is sent to the CPU 55 via the A / D converter 54. CPU55
The digital signal sent to the controller compares the temperature set value stored in the RAM 57 with the instruction of the ROM 56 and controls the air heater 18. At the same time, the red light emitting diode that displays the measured temperature of the drying temperature of the operation panel 61 is turned on via the panel interface 60. FIG. 3 shows that the drying temperature has risen to 54 ° C., the green light emitting diodes 64a to 64g whose temperature is set to 54 ° C. are turned off, and the red light emitting diodes 65a to 65g indicating the temperature are turned on. Therefore, an array group of two-color light emitting diodes 64a to 64o, 65a to 65 in the form of a bar graph is formed.
o lights red from 40 ° C to 54 ° C and green from 54 ° C to 60 ° C. Drying temperature rises steadily 60
When the temperature reaches red, the drying temperature has reached the set value, and the heat source of the air heater 18 is turned off via the output circuit 59 so that the drying temperature is maintained at the set value.

The control of the heat source of the air heater 18 can be any one of ON (ON) -OFF (OFF), time proportional, and PID (proportional integral derivative) control described in the ROM 56.

Further, the temperature setting can be changed up and down freely even during the drying process. A plurality of temperature display devices may be installed. Color coding of the light emitting diodes is possible other than the combination of green and red. Washers other than dry cleaners,
It is also applicable to a temperature display device for a drying gas such as a dryer.

According to the embodiment described above, the detected value at the temperature detecting end is A /
It is input to the CPU (Central Processing Unit) 55 via the D converter 54, and on the other hand, for temperature setting and temperature display, for example, a plurality of light emitting diodes having a two-color light emitting function of green and red are provided on the operation panel in the form of a bar graph. The temperature setting is illuminated in green and the temperature display is illuminated in red. Then, while the temperature is low, the temperature setting green is turned on, when the temperature rises and reaches the corresponding temperature, the green is turned off and the red is turned on, and the temperature setting is provided with up and down keys on the operation panel. By pressing, the green light emitting diodes can be turned on by the number of light emitting diodes corresponding to the corresponding temperature.

Therefore, the following effects can be obtained.

(1) Since temperature control is performed by the CPU (Central Processing Unit), fine temperature control is possible.

(2) For the temperature display, the two-color light emitting diodes are arranged in the shape of a bar graph, and the temperature display is lit in red and the part where the temperature has not been reached is lit in green, so the drying temperature state can be seen at a glance.

(3) The reliability of temperature control is improved.

〔The invention's effect〕

According to the present invention described above, a microcomputer is used as a temperature controller for the drying temperature of a drying gas and the like, and a plurality of two-color light emitting diodes are used as a means for setting and measuring temperature of the microcomputer. Since it is arranged in a bar graph and the difference between the set temperature and the measured temperature and the measured temperature part are displayed in correspondence with each color, fine temperature control is possible, reliability is improved, and drying is also possible. It is possible to provide a dry temperature display device for a dry cleaner in which the temperature state can be easily seen at a glance.

[Brief description of drawings]

FIG. 1 is a control block diagram showing the construction of an embodiment of a dry temperature display device for a dry cleaner according to the present invention, FIG. 2 is a view showing an example of an operation panel in FIG. 1, and FIG.
The figure which shows an example of the lighting state of the light emitting diode in a figure,
FIG. 4 is a schematic view of a dry cleaning device for explaining a conventional example, FIG. 5 is a control block diagram for explaining a conventional example, and FIG. 6 is an operation panel diagram for explaining a conventional example. 55 …… CPU, 61 …… Operation panel, 64a to 64o …… Light emitting diode (green), 65a to 65o …… Light emitting diode (red).

Claims (1)

[Claims] 1. A microcomputer is used as a temperature controller for controlling the drying temperature of a drying gas, and a plurality of two-color light emitting diodes are used as means for setting and measuring temperature of the drying gas, which are arranged in a bar graph. The dry temperature display device for a dry cleaner is characterized in that the difference between the set temperature and the actually measured temperature and the actually measured temperature portion are displayed in correspondence with each color.