JP3338621B2 - washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a washing machine,
In particular, it relates to a washing machine when connected to hot water supply means such as a water heater.

[0002]

2. Description of the Related Art A dishwasher as a washing machine has a water storage tank in a washing room. Before the cleaning operation is performed, a predetermined amount of water is supplied to the water storage tank. Thereafter, the washing pump is operated, and the water in the water storage tank is spouted from the nozzle through the water passage circuit to wash the dishes. The spouted water, that is, the water after washing the dishes, collects again in the water storage tank. Therefore,
By repeating this operation, the tableware is continuously washed.

[0003] By the way, in general, a temperature of 60 ° C is lower than that of low-temperature water.
About the hot water has higher cleaning efficiency. This is because hot water of about 60 ° C. is most suitable as the activation temperature of the detergent. Therefore, a heater is provided in the water storage tank, and heating is performed by the heater in order to raise the hot water temperature of the water storage tank to 60 ° C. Recently, a water heater can be connected to the water supply side of the dishwasher. In this case, by using the hot water supplied through the heat exchanger of the water heater, the time required to raise the water in the water storage tank to a predetermined temperature is significantly larger than when the water is heated by the heater. There is an advantage that it can be shortened.

[0004] However, in this case, even if the water supply valve of the washer is opened to perform the cleaning and the water starts flowing through the heat exchanger of the water heater to start the combustion in the water heater, the heat exchange of the water heater is started. It takes some time for the vessel to reach a steady state. Further, residual water accumulated in a pipe connecting the washing machine and the water heater flows out to a water storage tank of the washing machine. Therefore, even if the hot water supply operation of the water heater is started, hot water of an appropriate temperature is not supplied from the beginning, but cold water is supplied for a while.

Therefore, even if a water heater is connected to the dishwasher, the temperature of the hot water in the water storage tank will be low. As a result, in order to raise the hot water supplied to the water storage tank to a predetermined temperature,
Again, heating by a heater is required. In order to solve such a problem, there is a cleaning machine using a cleaning method as shown in FIG.

Referring to FIG. 4, in step (denoted by S in the drawing) 101, a hot water supply operation of the water heater is performed (operation from opening operation to closing operation of the water solenoid valve), and the water is supplied to the water tank of the washing room. A predetermined amount of hot water is supplied. The hot water here is hot water in a state where the heat exchanger of the water heater is not in a steady state, as described above, and therefore is in a state close to cold water. Preliminary cleaning (for example, for one minute) is performed in step 102 using the low-temperature hot water. The preliminary cleaning is performed by causing hot water in a water storage tank to be spouted from a nozzle to tableware to be cleaned through a water passage circuit. With this preliminary cleaning,
Rough dirt on tableware is washed away.

Next, at step 103, the hot water used for the preliminary cleaning is drained. Drainage is performed by operating a drainage pump. Thereafter, in step 104, hot water is supplied again from the water heater. The hot water supply here is hot water supply after the heat exchanger of the water heater is in a steady state. Since the temperature of hot water to be supplied is a temperature set by a remote controller or the like of the water heater, it cannot be controlled by the dishwasher. Then, it is determined in step 105 whether the temperature of the hot water supplied and stored in the water storage tank is equal to or higher than 35 ° C. 3
The determination as to whether the temperature is 5 ° C. or more is performed by a temperature sensor such as a thermistor. The temperature measurement by the temperature sensor is performed immediately after hot water is supplied to the water storage tank.

If the temperature is 35 ° C. or higher, the routine proceeds to step 106, where the main cleaning is performed. If the temperature is lower than 35 ° C., the process proceeds to step 107, and the wastewater is treated.
The process proceeds to step 106 for re-hot water supply, and the main cleaning process is performed. Here, the reason why the temperature is set to 35 ° C. is that heating for raising the temperature up to 60 ° C. is performed by a heater. The time is set in comparison with the time required for drainage and re-supply of hot water as shown at 108 and for heating the heater as needed. That is, 35 ° C. is set as the upper limit value of the temperature at which the processing of drainage water and hot water supply becomes shorter.

Finally, after the main cleaning in step 106,
The drainage processing in step 109 and the drying processing in step 110 are performed, and all processing ends.

[0010]

However, in the cleaning method shown in FIG. 4, the temperature of the hot water is measured by the temperature sensor immediately after the hot water is supplied to the water storage tank from the water heater.
Therefore, if the measured temperature is equal to or higher than the predetermined temperature, the process immediately proceeds to the main cleaning step even if the temperature drops sharply from the predetermined temperature, or the temperature of the hot water stored in the water storage tank is increased by 60 After warming to ° C, the process proceeds to the main washing step.

That is, the state of the cleaning chamber including the water storage tank, the piping, etc. before the hot water is supplied is affected by the outside air and the like. Therefore, even if the temperature immediately after the hot water supply is higher than the predetermined temperature, if the temperature of the water storage tank or the piping is lowered due to the extremely low outside air, the hot water temperature should immediately fall below the predetermined temperature of 35 ° C. As a result, heating must be performed again by the heater to raise the temperature of the hot water to 60 ° C. again, and there is a problem that the cleaning time and the cleaning efficiency such as an increase in the heating time are reduced.

Therefore, an object of the present invention is to provide a cleaning machine that also takes into account the temperature change of the cleaning liquid caused by the temperature of the water tank and the entire cleaning chamber.

Further, the invention according to claim 3 is the invention according to claim 1.
Another object of the present invention is to provide a washing machine capable of performing excretion and re-supply when the temperature of the supplied washing liquid is low. Still another object of the present invention is to provide a washing machine capable of applying heat to the supplied washing liquid, in addition to the object of the present invention.

It is still another object of the present invention to provide a washing machine capable of presetting a reference value for determining whether to drain and resupply.

[0015]

In order to solve the above-mentioned problems, the present invention measures the temperature of a cleaning liquid after a predetermined period has passed since it was supplied to a water storage tank, and supplied the cleaning liquid based on the measured temperature. It is determined whether or not the object is to be cleaned using the cleaning liquid.

Here, the predetermined period refers to a period during which the temperature of the cleaning liquid is stabilized and a measured temperature sufficient to determine whether or not the cleaning should be performed is obtained. The invention according to claim 1 is
A washing machine connectable to a hot water supply unit that supplies a washing liquid heated to wash a target object stored in a washing room to a water storage tank, the washing machine including a measurement unit, a washing unit, and a control unit. ing. As the supply means, for example, a water heater is used. The measuring unit measures the temperature of the cleaning liquid in the water storage tank after a predetermined period has elapsed since the supply of the cleaning liquid to the water storage tank. Examples of the measuring means include a temperature sensor, and more specifically, a thermistor. The cleaning means circulates the cleaning liquid supplied in the cleaning chamber and jets the cleaning liquid toward the object to perform cleaning. Examples of the cleaning means include a nozzle, a circulation pipe, and a cleaning (circulation) pump. The control means forcibly activates the cleaning means for a predetermined period after the cleaning liquid is supplied to the water storage tank, and activates the cleaning means only when the measured temperature of the measurement means is equal to or higher than the predetermined value after the predetermined time has elapsed. Is controlled to continue. The control unit includes a control unit.

The predetermined period here also means a period during which the temperature of the cleaning liquid is stable and a measured temperature at which it is possible to accurately determine whether or not to perform cleaning is obtained. According to such an invention, after the temperature of the cleaning liquid supplied to the water storage tank is affected by the temperature of the water storage tank, the cleaning liquid is ejected toward the object during a predetermined period, and the cleaning liquid diffuses into the cleaning chamber. Therefore, the measurement can be performed in consideration of the temperature change of the cleaning liquid due to the temperature of the entire cleaning chamber. Then, when the measured value is equal to or more than the predetermined value, cleaning is performed using the cleaning liquid.

According to a second aspect of the present invention, the cleaning means as the first aspect of the present invention includes a nozzle, a pipe, and a circulation pump. The nozzle has a spout directed toward an object. The pipeline connects the nozzle and the water storage tank. The circulation pump circulates the cleaning liquid in the water storage tank to the nozzle side through a pipe.

According to this invention, the cleaning liquid passes through the pipeline for a predetermined period after the cleaning liquid is supplied to the water storage tank, so that the temperature can be measured in consideration of the temperature change of the cleaning liquid due to the temperature of the pipeline. It becomes possible. Therefore, cleaning based on such measured values becomes possible. The invention according to claim 3 further includes an excretory means in addition to the matters specifying the invention according to claim 1 or 2. The excretion means excretes the supplied cleaning liquid from the water tank. Further, the control means activates the excretion means in response to the measured temperature after a predetermined period of time has elapsed after the cleaning liquid is supplied to the water tank, and activates the excretion means, and after the excretion, the hot water supply means rises to the water tank. After supplying the warmed cleaning liquid again, the cleaning means is activated.

According to the invention, the cleaning liquid is supplied again after the water tank and the like in the cleaning chamber are warmed by the cleaning liquid supplied first time. The invention set forth in claim 4 has the following features in addition to the matters specifying the invention of claim 3:
Further, a heating means is provided. The heating means applies heat to the cleaning liquid supplied to the water storage tank. The control unit activates the heating unit during the cleaning operation of the cleaning unit after a predetermined period has elapsed since the supply of the cleaning liquid to the water tank.

According to a fifth aspect of the present invention, the predetermined value to be compared with the measured temperature of the fourth aspect of the present invention is such that the excretion time and hot water in which the excretion means excretes the washing liquid for a predetermined period after the supply means supplies the cleaning liquid. A resupply time in which the supply means resupplies the cleaning liquid,
In addition, it is set in advance based on the heating time according to the heating capacity of the heating means. According to such an invention, a predetermined value is set in consideration of shortening the entire time.

[0022]

As described above, according to the first aspect of the present invention, the temperature is measured after a lapse of a predetermined period from the supply of the cleaning liquid to the water tank, and the supplied cleaning liquid is measured based on the measured temperature. Since it is determined whether or not the cleaning is performed using the cleaning liquid, if there is a change in the temperature of the cleaning liquid during a predetermined period, for example, a cleaning operation such as a cleaning operation in which the temperature is rapidly lowered from a temperature suitable for cleaning. Cleaning with reduced efficiency can be prevented.

The temperature of the cleaning liquid is measured after a predetermined period of time while being circulated in the cleaning chamber after being supplied to the water tank, and the cleaning is performed when the measured temperature is equal to or higher than a predetermined value. When the temperature of the cleaning liquid drops rapidly due to the low indoor temperature, it is possible to prevent the cleaning liquid from being used for cleaning. According to the second aspect of the present invention, it is possible to measure the temperature of the cleaning liquid, which is lowered due to, for example, a low pipe temperature.

According to a third aspect of the present invention, in addition to the effects of the first or second aspect, when the measured temperature is lower than a predetermined value, the supplied cleaning liquid is discharged and the hot water is re-supplied. A decrease in the temperature of the cleaning liquid that is warmed and resupplied is prevented, and the cleaning efficiency such as the cleaning time can be further improved. According to the fourth aspect of the present invention, since heat is applied to the cleaning liquid in a state where the temperature of the cleaning liquid is unlikely to decrease, the amount of heat to be added can be reduced by that amount, the heating time can be shortened, and energy saving can be achieved. Can be planned.

According to the fifth aspect of the invention, in addition to the effect of the fourth aspect, not only the heating time but also the overall time can be reduced.

[0026]

FIG. 1 is a sectional view of a dishwasher according to an embodiment of the present invention, and FIG. 2 is a partially enlarged view of FIG. The dishwasher 10 as a washing machine is surrounded by a caging 11. Inside the caging 11, a washing room 12 is provided, a tableware 13a-g is stored in a rack 15a in the washing room 12, and a tableware 1
4a to 4g are stored.

The nozzle arm 16 faces the rack 15a.
a is provided, and the nozzle arm 1 is opposed to the rack 15b.
6b are provided. The nozzle 17 is attached to the nozzle arm 16a.
a to f are formed with their spouts directed toward the dishes 13a to 13g, and nozzles 18a to 18f are formed in the nozzle arm 16b with the spouts directed to the dishes 14a to 14g.
The front surface of the cleaning chamber 12 is configured to be closed by a door 19. Ceiling wall 22 and caging 11 of cleaning room 12
An exhaust passage 20 and an air supply passage 23 are provided between the top plate 21 and the top plate 21. The exhaust passage 20 is for discharging wet air from the washing chamber 12 to the outside when the dishes are dried after the washing operation. The air supply passage 23 is provided in the washing room 12 when the dishes are dried.
Provided with a drying fan 24 for supplying dry air to the air conditioner.

A water solenoid valve 26 and a water amount counter 27 are provided at predetermined positions inside the casing 11 outside the washing chamber 12. The water solenoid valve 26 is connected to a water supply pipe 28, and the water supply pipe 28 is connected to a water heater 29. The water heater 29 is a well-known one, and when a water flow switch 29b provided in a water supply passage 29a detects a flow of water, a burner 29c starts burning and heats water passing through a heat exchanger 29d. It is. That is, the water solenoid valve 26
When the valve is opened, water flows and combustion of the burner 29c starts. The water counter 27 measures the amount of supplied hot water. Hot water supplied via the water solenoid valve 26 is stored in a water storage tank 30 formed at a lower portion of the cleaning chamber 12. The water amount counter 27 measures the amount of water to be stored in the water tank 30.

Inside the water storage tank 30, a heater 31 for increasing the cleaning power by increasing the temperature of the cleaning water stored in the water storage tank 30 to a predetermined temperature is provided. A thermistor 32 for measuring the temperature of the cleaning liquid stored in the water storage tank 30 is attached to the back surface of the bottom wall of the water storage tank 30. Water tank 3
The lower part of 0 is connected to a washing (circulation) pump 34 and a drainage pump 35 via a garbage filter 33. The cleaning pump 34 is further connected to the nozzle arms 16a and 16b by a circulation pipe 37, and sucks hot water in the water storage tank 30 through the garbage filter 33 and sends the hot water to the circulation pipe 37. The drain pump 35 is further connected to a drain pipe 38 and drains hot water stored in the water storage tank 30 to the outside of the washing machine 10. The drain pipe 38
Are in communication with the cleaning chamber 12 through the air holes 39.
The air hole 39 is formed to release the inside of the drain pipe 38 to the atmosphere when the operation of the drain pump 35 is completed, and to eliminate the sunphone phenomenon.

The water tank 30 is connected to a pressure sensor 41 via a large pipe 36 and a small pipe 40 in addition to the washing pump 34 and the drain pump 35. Pressure sensor 4
1 is that the hot water supplied to the water storage tank 30 accumulates, so that the hot water also flows into the large pipe 36, and the large pipe 36 and the small pipe 40
Then, the pressure of the air pressurized during the period is detected, and the water level of the water storage tank 30 is measured based on the detected pressure. This is to double consider the safety against water leakage by providing both with the water amount counter 27.

The controller 42 receives signals from the thermistor 32, the water counter 27, the pressure sensor 41, and the like, and outputs signals to the cleaning pump 34, the drain pump 35, and the like. In addition, on the upper part of the inner surface of the door 19, a detergent for increasing a cleaning effect and a detergent for pouring a rinse into the water storage tank are provided.
A rinse input device 43 is provided. Next, description will be made with reference to FIG.

First, tableware 13a is placed in racks 15a and 15b.
When the operation switch (not shown) is operated after each of the tableware-g and the tableware 14a-g are stored, the water solenoid valve 26 is opened and the hot water supply operation is performed (step 201). Here, in the water heater 29, the flow of water causes the burner 29c to start burning, and the water supplied to the dishwasher 10 is heated. The hot water supplied from the water heater 29 takes a long time until the heat exchanger reaches a steady state, and water in the connection pipe between the water heater 29 and the dishwasher 10 flows out.
It is almost in the same state as tap water has been supplied for a while. The low-temperature hot water such as tap water is supplied from the water solenoid valve 26 into the cleaning chamber 12 via the water supply pipe 28. The supplied hot water is stored in the water storage tank 30 as it is.

After a predetermined amount of water is supplied through the water counter 27, the water solenoid valve 26 is closed, the washing pump 34 is operated for one minute, and the water in the water storage tank is discharged through the circulation pipe 37. It is sent to the nozzle arms 16a and 16b, and is ejected from the nozzles 17a to 18f and the nozzles 18a to 18f. The spouted water contains tableware 13a-g and tableware 14a.
G, removes rough stains on the dishes, and then collects again in the water storage tank 30 while diffusing toward the inner wall in the washing room 12. Thus, the preliminary cleaning in step 202 is performed (for example, for one minute). By performing the pre-cleaning in this manner, cold water in the connection pipe between the water heater 29 and the dishwasher 10 can be replaced with hot water.

Next, in step 203, after the pre-washed hot water is drained by operating the drain pump 38, the water solenoid valve 26 is opened again, and the hot water supply operation for the main cleaning is performed in step 204.
It is performed in. Thereafter, in step 205, the cleaning pump 34 operates for one minute. As a result, the hot water supplied is
Circulation pipe 37, nozzles 17a-f, nozzles 18a-f
After that, circulation in the washing chamber 12 and diffusion back to the water storage tank 30 is performed. By this circulation, the water tank 30, the circulation pipe 37, and the inner wall of the cleaning chamber 12 are warmed, and the temperature of the circulating water is reduced. Then, in step 206, the thermistor 32 measures the temperature of the hot water in the water storage tank 30.
Then, it is determined whether the temperature of the hot water in the water storage tank 30 is 60 ° C. or higher. On the other hand, when the temperature is lower than 35 ° C., the drainage operation is performed in step 208, and the hot water supply operation at a predetermined flow rate is performed again in step 209. Then, step 20
Go to 7. In step 207, it is determined whether the temperature of the hot water in the water storage tank 30 is 60 ° C. or higher. If the temperature is lower than 60 ° C., the heater 31 is energized (step 210) and heated by the heater to 60 ° C. or higher. Or heater 3
If the temperature is 60 ° C. or more before the start of energization in step 1, the process proceeds to step 211, where the main cleaning is performed.

The main cleaning is started when the cleaning pump 34 is operated and the detergent is supplied from the detergent / rinse input device 43 into the cleaning chamber 12. The cleaning liquid jetted from the nozzles 17a to 17f and the nozzles 18a to 18f by the pressurization of the cleaning pump 34 is filtered by the garbage filter 33, returned to the cleaning pump 34, and cleaned with hot water. During this main cleaning, the thermistor 32 operates so that the temperature of the cleaning liquid is maintained at about 60 ° C., which is a temperature suitable for cleaning.
Is turned on / off by the control unit 42 in response to the detection output of Since the nozzle arms 16a and 16b rotate, a rotational force acts on the cleaning liquid to be sprayed, and the cleaning power increases.

As described above, in the embodiment of the present invention, in the step 205 after hot water supply, the cleaning pump is operated for one minute, and thereafter, the temperature of the hot water is measured. Therefore, even if the temperature of the water storage tank 30, the circulation pipe 37, and the inner wall of the cleaning chamber 12 is low due to the low temperature of the outside air, the temperature change of the cleaning liquid is taken into consideration, and the temperature is accurately measured to measure the temperature after stabilization. be able to. Therefore, even if the temperature decreases, the cleaning liquid is used when the measured temperature is higher than a certain temperature, and when the temperature becomes lower than the certain temperature, drainage and re-water supply operations are performed, so that the cleaning liquid is reduced to 60 ° C. The time required for raising is shortened (for example, 3 to 5 minutes), and the cleaning efficiency is improved.

Next, after the main washing in step 211 is completed, the drain pump 35 is operated, and step 212 drain operation is performed. Then, in step 213, the dry air supplied from the drying fan 24 is supplied into the washing chamber 12, and the humid air, such as the tableware 13 a, which has absorbed moisture is discharged into the exhaust passage 20.
Through the device. Thereby, a drying operation is performed. Then, all operations end.

In the embodiment of the present invention, the temperature suitable for cleaning is set at 60 ° C., but the present invention is not limited to this. The value may be determined according to the ejection power ejected from the nozzle or the type of detergent or the like.

Further, the predetermined period is set to one minute, and it is determined whether the main cleaning is performed or the drainage and the re-water supply are performed depending on the temperature of the hot water is 35 ° C. or more. However, the present invention is not limited to this. This 1 minute and 35 ° C. should also be changed depending on the temperature of the outside air, the capacity of the heater, the material of the water storage tank, and the size of the water storage tank. It should be determined comprehensively in consideration of the time from when the hot water is supplied again to when the temperature is raised to 60 ° C. by the heater.

Further, the heater is controlled by the control unit so as to raise and maintain a constant temperature which is a temperature suitable for cleaning. However, the heater may be operated when the cleaning pump of step 205 is operated for one minute. Good, but not working in this embodiment. This is because the possibility of drainage in step 209 was considered. Further, when the cleaning pump is operated for one minute in step 205, it is not necessary to supply a detergent or the like. This is because there is a possibility that the water is drained in step 209. However, it does not necessarily hinder the introduction of the detergent or the like.

Further, in the present embodiment, the main cleaning is performed after the temperature of the hot water in the water storage tank 30 is heated to 60 ° C. However, even when the temperature is lower than 60 ° C., the cleaning operation is performed simultaneously with energizing the heater. It may be performed. In this case, the cleaning performance is reduced because the temperature does not reach 60 ° C. as the activation temperature of the detergent. However, by performing the cleaning operation until the temperature reaches 60 ° C., the time for the main cleaning can be shortened. As a result, the time from the start of cleaning to the end of cleaning can be shortened.

Further, the object to be cleaned is not limited to tableware, but may be clothing or the like. In this case, a washing machine of a coin laundry may be used as the washing machine. further,
The water storage tank does not need to be provided integrally with the lower part of the cleaning room, but may be provided anywhere in the cleaning room or as a separate body.

[Brief description of the drawings]

FIG. 1 is a sectional view of a dishwasher according to an embodiment of the present invention.

FIG. 2 is a partially enlarged view of FIG.

FIG. 3 is a flowchart illustrating the operation of the dishwasher of FIG. 1;

FIG. 4 is a flowchart for explaining the operation of the conventional dishwasher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Cleaning machine 12 ... Cleaning room 13a-g, 14a-g ... Tableware 17a-f, 18a-f ... Nozzle 28 ... Water supply pipe 29 ... Water heater 30 ...・ Water tank 31 ・ ・ ・ Heater 32 ・ ・ ・ Thermistor 34 ・ ・ ・ Cleaning (circulation) pump 35 ・ ・ ・ Drainage pump 37 ・ ・ ・ Circulation pipe 42 ・ ・ ・ Control unit

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-261056 (JP, A) JP-A-8-140919 (JP, A) JP-A-60-168428 (JP, A) JP-A-8- 24202 (JP, A) JP-A-5-211975 (JP, A) JP-A-59-162868 (JP, U) JP-A-3-99549 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B08B 1/00-7/04 A47L 15/00-15/48

Claims (5)

(57) [Claims] 1. A cleaning machine connectable to a hot water supply means for supplying a heated cleaning liquid to a water storage tank for cleaning an object stored in a cleaning chamber, wherein the cleaning liquid is supplied to the water storage tank. After a lapse of a predetermined period of time, measuring means for measuring the temperature of the cleaning liquid in the water storage tank, and cleaning means for circulating the supplied cleaning liquid in the cleaning chamber and jetting it toward the object for cleaning, During the predetermined period, the cleaning unit is forcibly activated, and after the predetermined period, the cleaning unit is activated using the supplied cleaning liquid only when the measured temperature of the measurement unit is equal to or higher than a predetermined value. And a control means for controlling the cleaning. 2. The cleaning means includes: a nozzle having an ejection port directed to the object; a pipe connecting the nozzle and the water storage tank; and a nozzle for supplying a cleaning liquid of the water storage tank through the pipe. The washing machine according to claim 1, further comprising a circulation pump circulating to a side. 3. An excretion means for excreting the supplied cleaning liquid from the water storage tank, wherein the control means activates the excretion means in response to a measured temperature of the measuring means being lower than a predetermined value. The washing machine according to claim 1 or 2, wherein the washing means is activated after the warm water supply means supplies the heated washing liquid to the water storage tank again after excretion. 4. A cleaning device, comprising: heating means for applying heat to the cleaning liquid supplied to the water storage tank, wherein the control means performs a cleaning operation of the cleaning means after a lapse of a predetermined period from the supply of the cleaning liquid to the water storage tank. 4. The washing machine according to claim 3, wherein said heating means is activated. 5. The method according to claim 1, wherein the predetermined value to be compared with the measured temperature is an excretion time during which the excretion means excretes the cleaning liquid during the predetermined period from the supply by the supply means, and the hot water supply means supplies the cleaning liquid again. The cleaning machine according to claim 4, wherein the cleaning machine is preset based on a re-supply time and a heating time according to a heating capacity of the heating means.