JP6807199B2 - Laundry chemical charging device and charging method - Google Patents

Description

An embodiment of the present invention relates to a washing chemical liquid charging device and a charging method in a commercial washing machine.

In a commercial washing machine, a washing machine liquid injection device is attached to charge a chemical solution obtained by mixing chemicals such as detergent, bleach, and finishing agent with water and diluting it into the washing machine tub. Has been done.

For example, Patent Document 1 includes automatic charging including a plurality of chemical solution tanks each containing each washing chemical solution, and a plurality of tube-type pumps and pipes for sending each washing chemical solution from the chemical solution tank to the washing machine tank. The device is disclosed.

Further, in Patent Document 2, each chemical tank, water supply channel, and stirring tank are connected by pipes, a check valve, a flow meter, and a solenoid valve are provided in the middle of each pipe, and the stirring tank is further pressurized and depressurized. A device is provided to measure the chemical solution in each chemical solution tank and the water from the water supply channel using a flow meter, dilute and mix in the stirring tank, and spray the diluted chemical solution into the washing machine tub with pressurized air. It is disclosed that the pipe is put in.

JP-A-63-318997 Japanese Unexamined Patent Publication No. 2001-12888

When the washing chemicals are charged using a tube-type pump as in Patent Document 1, the tube, which is the liquid feeding part of the pump, tends to deteriorate, and if it deteriorates, the measurement becomes inaccurate, so that accurate charging becomes difficult. .. In addition, when using a fixed-quantity feed pump such as a tube-type pump to feed in a one-way pipe, the pipe from the pump to the washing machine tub cannot be completely filled with the washing chemicals, and after the chemicals are charged, the washing chemicals cannot be completely filled. Partial intrusion of air into the pipe makes it difficult to pump in a fixed quantity. In particular, in a commercial washing machine, since the chemical solution tank and the washing machine tank are generally located at separate positions, air easily enters the piping, which makes it more difficult to input a fixed amount.

The above-mentioned Patent Document 2 discloses that a chemical solution is supplied by using an electromagnetic valve and a flow meter, but the flow meter is used for weighing and charging into the stirring tank, and the flow meter is used. Neither the charging into the washing machine tub nor the charging while circulating the washing chemical solution is disclosed.

An object of the present invention is to provide a charging device and a charging method capable of accurately charging a washing chemical solution into a washing machine tub of a commercial washing machine.

The washing chemicals charging device according to the embodiment of the present invention is a device for charging the washing chemicals into the washing machine tub of a commercial washing machine in the linen supply industry or the cleaning industry, and is a chemical liquid tank for accommodating the washing chemicals. And the circulation pipe for sending the washing chemical liquid of the chemical liquid tank from the chemical liquid tank side to the washing machine tank side and returning it from the washing machine tank side to the chemical liquid tank side, and the circulation of the washing chemical liquid. A circulation pump that circulates through the circulation pipe, a charging pipe that is branched from the circulation pipe and is provided for charging the washing machine tub into the washing machine tub, and a valve that opens and closes the flow path of the charging pipe. And a flow meter for measuring the flow rate of the washing chemical liquid flowing through the charging pipe, the washing chemical liquid is constantly circulated in the circulation pipe by the circulation pump, and the valve of the charging pipe is provided. which is a shall be put the laundry chemical to the washing machine tub while measuring the flow rate in the flow meter open.

The method for charging the washing chemicals according to the embodiment of the present invention is a method of charging the washing chemicals into the washing machine tub of a commercial washing machine in the linen supply industry or the cleaning industry by using the charging device. Is a circulation pipe for storing the chemical solution for washing and circulating the chemical solution for washing in the chemical solution tank so as to be sent from the chemical solution tank side to the washing machine tank side and returned from the washing machine tank side to the chemical solution tank side. A circulation pump that circulates the washing chemical liquid through the circulation pipe, a charging pipe that is branched from the circulation pipe and is provided to feed the washing machine liquid into the washing machine tub, and the charging pipe. A valve and a flow meter provided in the pipe for washing are provided, and the chemical solution for washing is constantly circulated in the circulation pipe by the circulation pump, the valve of the input pipe is opened, and the flow rate is flowed by the flow meter. The washing chemical solution is put into the washing machine tub while measuring.

According to the embodiment of the present invention, the washing chemical liquid is constantly circulated in the circulation pipe provided from the chemical liquid tank side to the washing machine tank side, and the flow meter is used from the charging pipe branched from the circulation pipe. It is possible to put the washing chemical solution into the washing machine tub while measuring the flow rate. Since it is constantly circulated in this way, it is possible to suppress the ingress of air into the pipe, and it is possible to reliably input a fixed amount using a flow meter.

It is a schematic block diagram of the throwing device which concerns on 1st Embodiment. It is a schematic block diagram of the throwing device which concerns on 2nd Embodiment. It is a schematic block diagram of the throwing device which concerns on 3rd Embodiment. It is a schematic block diagram of the throwing device which concerns on 4th Embodiment.

The washing chemicals charging device according to the embodiment of the present invention is an automatic charging device for charging the washing chemicals into the washing machine tub of a commercial washing machine. Examples of commercial washing machines include commercial washing machines in the linen supply industry and the cleaning industry. Generally, commercial laundry is performed through four steps: pre-washing, main washing, rinsing, and processing. In the commercial washing machine that performs these four steps, a batch type washing machine in which prewashing, main washing, rinsing and processing are performed in a single tank and a plurality of tanks for prewashing, main washing, rinsing and processing are arranged side by side. Therefore, there is a continuous washing machine that continuously performs washing while sequentially moving the object to be washed to each of these tubs, and it may be provided in any washing machine.

The washing chemical solution is a liquid chemical that is put into the washing machine, and is also called a cleaning agent solution. For example, agents such as detergents, bleaches, alkaline agents, acids, neutralizers, fabric softeners, sizing agents, and antibacterial agents are used as they are, or dissolved or diluted in water.

The charging device 10A according to the first embodiment shown in FIG. 1 is a detergent charging device for automatically charging a detergent solution obtained by dissolving powdered detergent in water as a washing chemical solution into a commercial washing machine.

The charging device 10A is a device for charging the detergent solution into two continuous washing machines 1 and 2, that is, the continuous washing machine 1 and the continuous washing machine 2, as a commercial washing machine. The continuous washing machine is not particularly limited, and examples thereof include those having each washing machine tub of a pre-washing tub, a main washing tub, a rinsing tub, and a processing tub as disclosed in Japanese Patent Application Laid-Open No. 2010-21402. Be done. In this example, as shown in FIG. 1, the charging device 10A includes a pre-washing tank 1A (that is, "pre-washing") of the continuous washing machine 1 and two main washing tanks 1B, 1C (that is, "main washing 1"). "Main wash 2"), and the pre-wash tank 2A (that is, "pre-wash") of the continuous washing machine 2 and the two main wash tanks 2B, 2C (that is, "main wash 1" and "main wash 2"). For each, it is configured so that a detergent solution can be added.

The charging device 10A includes a chemical tank 12, a circulation pipe 14, a circulation pump 16, a charging pipe 18, an electromagnetic valve 20, and a flow meter 22.

The chemical liquid tank 12 is a tank for storing a detergent solution as a washing chemical liquid, and is provided at a position away from the washing machine tanks 1A to C and 2A to C of the continuous washing machines 1 and 2. The chemical solution tank 12 is provided with a water supply device 24 for supplying water for dissolving and diluting the powder detergent into the chemical solution tank 12. The water supply device 24 is configured by providing a solenoid valve 28 and a flow meter 30 in the water supply pipe 26, and accurate dilution by the flow meter 30 is possible.

The chemical tank 12 is provided with a heating means 32 for facilitating the dissolution of the powder detergent in water, a stirring device 34 for stirring the detergent solution, and a temperature sensor 36 for detecting the temperature of the detergent solution. In this example, the heating means 32 is composed of a heating pipe using steam as a heating source, and is configured to control the temperature of the detergent solution within a predetermined range by opening and closing the valve 32A based on the detection result of the temperature sensor 36. ing.

The chemical liquid tank 12 is also provided with a liquid level sensor 38 that detects the amount of the detergent solution. The liquid level sensor 38 monitors the remaining amount of the detergent solution, and when the detergent solution is replenished, the required amount of water is automatically calculated from the detected remaining amount, and the amount of water is supplied from the water supply device 24. There is.

The circulation pipe 14 is a pipe that sends the detergent solution of the chemical solution tank 12 from the chemical solution tank 12 side to the washing machine tanks 1A to C and 2A to C side and circulates the detergent solution from the washing machine tank side to the chemical solution tank side. is there. Specifically, the circulation pipe 14 is pulled out from the bottom of the chemical liquid tank 12 in order to send the detergent solution of the chemical liquid tank 12 to the vicinity of the washing machine tanks 1A to C and 2A to C, and the washing machine tanks 1A to C, It is provided with a feed pipe 14A extending to the installation location of 2A to C, and a return pipe 14B extending from the installation location to the chemical liquid tank 12 in order to return the detergent solution sent to the vicinity of the washing machine tub to the chemical liquid tank 12.

The circulation pump 16 is a pump for circulating the detergent solution in the circulation pipe 14, and is provided in the circulation pipe 14 (more specifically, the upstream portion in the feed pipe 14A near the chemical liquid tank 12). The circulation pump 16 sucks the detergent solution from the chemical liquid tank 12, flows it through the feed pipe 14A of the circulation pipe 14, and further circulates it so as to return it to the chemical liquid tank 12 through the return pipe 14B. As the circulation pipe 16, a general-purpose non-quantitative feed pump such as a pump having an impeller can be used, and a stainless steel pump that does not easily deteriorate is preferably used. A strainer (not shown) may be provided upstream of the circulation pump 16.

The charging pipe 18 is a pipe for charging the detergent solution into the washing machine tanks 1A to C and 2A to C, and is provided as a branch from the circulation pipe 14. In this example, the charging pipe 18 is branched from the circulation pipe 14 so that the detergent solution is charged into the plurality of washing machine tanks 1A to C and 2A to C of the continuous washing machines 1 and 2, respectively. That is, each washing machine tub 1A to C and 2A to C are branched and provided. More specifically, the charging pipe 18 branches downward from the feed pipe 14A passing above the washing tubs 1A to C and 2A to C, extends downward, and is drawn into the washing tubs 1A to C and 2A to C. ing.

The solenoid valve 20 is a valve that opens and closes the flow path of the charging pipe 18 for charging the detergent solution into the washing machine tanks 1A to C and 2A to C, and is provided in the charging pipe 18. The solenoid valve 20 is provided in each of the plurality of input pipes 18.

The flow meter 22 is a measuring instrument for measuring the flow rate of the detergent solution flowing through the charging pipe 18, and in the charging pipe 18, the branch portion from the solenoid valve 20, that is, the branch portion from the circulation pipe 14, and the solenoid valve 20 It is provided between. The flow meter 22 is provided in each of the plurality of input pipes 18. As the flow meter 22, for example, a non-contact flow meter such as an ultrasonic flow meter or an electromagnetic flow meter is preferably used, and in this example, an ultrasonic flow meter is used.

The circulation pipe 14 is provided with a pressure sensor 40 that constantly monitors the pressure of the detergent solution flowing in the pipe. The pressure sensor 40 detects the pressure of the detergent solution flowing in the return pipe 14B in the return pipe 14B on the downstream side of the branch portion with the charging pipe 18.

When the detergent solution is charged using the charging device 10A of the first embodiment, first, the detergent is charged into the chemical liquid tank 12, and a predetermined amount of water is automatically charged using the water supply device 24 to automatically charge the heating means 32. To prepare a detergent solution by dissolving the detergent in water by stirring with the stirring device 34 while heating with the above. Then, the circulation pump 16 is used to circulate the detergent solution through the circulation pipe 14. In this way, while constantly circulating the detergent solution in the circulation pipe 14, the solenoid valve 20 of the input pipe 18 is opened and the flow rate is measured by the flow meter 22, and the detergent solution is mixed in the washing machine tanks 1A to C, 2A. Put it in ~ C. Specifically, the washing machine tubs 1A to C and 2A to C to which the detergent solution should be charged correspond to the washing machine tubs 1A to C and 2A to C based on a signal from a control unit (not shown). The solenoid valve 20 of the charging pipe 18 is opened. As a result, the detergent solution flowing through the circulation pipe 14A flows from the branch portion to the charging pipe 18, and the detergent solution is charged into the corresponding washing machine tubs 1A to C and 2A to C. While measuring the flow rate of the detergent solution flowing through the charging pipe 18 with the flow meter 22, the solenoid valve 20 is closed when the flow rate reaches a designated value. As a result, a predetermined amount of detergent solution is put into the washing machine tubs 1A to C and 2A to C.

As described above, according to the present embodiment, the circulation pipe 14 extending from the chemical solution tank 12 to the washing machine tanks 1A to C and 2A to C is provided to constantly circulate the detergent solution, so that the chemical solution tank 12 and the washing machine tank 1A are constantly circulated. Even if the distances from ~ C and 2A to C are long, it is possible to suppress the intrusion of air into the pipe, and it is possible to facilitate the injection in a fixed amount. In addition, by constantly circulating the detergent solution, it is possible to avoid a mistake in adding the detergent solution due to the closing of the pump or the pipe.

Further, by providing the flow meter 22, even if the viscosity of the detergent solution changes due to a change in air temperature, it is possible to add a fixed amount.

Further, by providing the flow meter 22 in the one that constantly circulates, even if the solenoid valves 20 of the plurality of charging pipes 18 are opened at the same time, the flow rate is actually measured, so that the charging can be performed in a quantitative manner. It is possible. Therefore, it is not necessary to use a high-output circulation pump for quantitative input, and the output of the circulation pump 16 can be reduced. That is, when the circulation pump 16 has a high output, even when a plurality of solenoid valves 20 are opened, a certain amount of detergent solution can be charged by opening and closing the solenoid valves 20 for a certain period of time, but the circulation pump 16 is low. In the case of output, there is a large variation in the amount of detergent solution added when opening and closing the solenoid valve 20 in a time-controlled manner. On the other hand, by providing the flow meter 22 capable of charging a fixed amount, a fixed amount can be charged into a plurality of washing machine tubs 1A to C and 2A to C regardless of the output of the circulation pump 16. Therefore, the low output circulation pump 16 can be used.

Further, since the flow meter 22 is a non-contact flow meter, clogging and corrosion of the flow meter 22 can be suppressed.

Further, by providing the pressure sensor 40 in the return pipe 14B of the circulation pipe 14, the pressure of the circulation pipe 14 can be monitored, and a defect in the circulation pump 16 or the strainer can be detected and an advance warning can be given. it can. The pressure sensor 40 can also detect a defect of the solenoid valve 20 by observing the pressure at the stage when the plurality of solenoid valves 20 are all closed. Therefore, it is preferable that the pressure sensor 40 is provided in the return pipe 14B on the downstream side of the branch portion of the input pipe 18.

FIG. 2 is a diagram showing a loading device 10B according to the second embodiment. The charging device 10B is a bleach charging device for automatically charging a bleach solution obtained by diluting a bleaching agent with water as a washing chemical solution into a commercial washing machine. Since the bleaching agent is a liquid, the charging device 10B is not provided with a heating means, a temperature sensor, and a stirring device, and is different from the charging device 10A of the first embodiment in that respect.

Further, the charging device 10B of the second embodiment includes the main washing tub 1B of the continuous washing machine 1 (that is, "main washing 1") among the washing machine tubs of the two continuous washing machines 1 and 2. The bleaching agent solution is charged into the main washing tank 2B (that is, "main washing 1") of the continuous washing machine 2, and this point is also different from the charging device 10A of the first embodiment.

Further, in the charging device 10B of the second embodiment, an electromagnetic flow meter 22A, which is a non-contact flow meter, is used as the flow meter provided in each charging pipe 18. By using the electromagnetic flow meter 22A, the flow rate can be stably measured even with a corrosive liquid bleach solution.

Regarding the second embodiment, other configurations and effects are the same as those of the first embodiment, the corresponding elements are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 3 is a diagram showing a loading device 10C according to the third embodiment. The charging device 10C is a washing auxiliary agent charging device for automatically charging a washing auxiliary agent solution obtained by diluting a washing auxiliary agent such as a liquid detergent with water as a washing chemical solution into a commercial washing machine. The charging device 10C is not provided with a heating means, a temperature sensor, and a stirring device, and is different from the charging device 10A of the first embodiment in that respect. Regarding the third embodiment, other configurations and effects are the same as those of the first embodiment, the corresponding elements are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 4 is a diagram showing a loading device 10D according to the fourth embodiment. This charging device 10D is a process for automatically charging a processing aid solution obtained by diluting a processing aid such as a softener, a neutralizing agent, a paste, and an antibacterial agent with water as a washing chemical solution into a commercial washing machine. It is an auxiliary agent injection device. The charging device 10D is not provided with a heating means, a temperature sensor, and a stirring device, and is different from the charging device 10A of the first embodiment in that respect.

Further, the charging device 10D of the fourth embodiment includes the processing tub 1D (that is, "processing") of the continuous washing machine 1 and the continuous washing machine among the washing machine tubs of the two continuous washing machines 1 and 2. The processing aid solution is charged into the processing tank 2D (that is, “processing”) of No. 2, which is also different from the charging device 10A of the first embodiment. Regarding the fourth embodiment, other configurations and effects are the same as those of the first embodiment, the corresponding elements are designated by the same reference numerals, and the description thereof will be omitted.

Any one of the loading devices 10A, 10B, 10C, and 10D of the first to fourth embodiments may be attached to the commercial washing machine, or two or more of them may be applied in combination. , All of these four loading devices may be applied in combination. That is, for example, all of these four charging devices 10A, 10B, 10C, and 10D may be attached to the two continuous washing machines 1 and 2, and a stable fixed amount of various washing chemicals can be charged. It becomes.

Further, in the charging devices 10A, 10B, 10C, and 10D of the above-described embodiment, the washing chemicals are charged into two commercial washing machines, but even those that are charged into one commercial washing machine. Often, it may be put into three or more commercial washing machines.

Although some embodiments have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention.

10A, 10B, 10C, 10D ... Input device, 12 ... Chemical tank, 14 ... Circulation pipe, 14A ... Feed pipe, 14B ... Return pipe, 16 ... Circulation pump, 18 ... Input pipe, 20 ... Solenoid valve, 22 ... Flow meter, 22A ... Electromagnetic flow meter, 40 ... Pressure sensor

Claims (5)

A device that puts a washing chemical into the washing machine tub of a commercial washing machine in the linen supply industry or the cleaning industry .
A chemical tank for storing laundry chemicals and
A circulation pipe for sending the washing chemical solution of the chemical solution tank from the chemical solution tank side to the washing machine tub side and returning it from the washing machine tub side to the chemical solution tank side.
A circulation pump that circulates the washing chemical solution through the circulation pipe,
A charging pipe that is branched from the circulation pipe and for charging the washing chemical solution into the washing machine tub,
A valve that opens and closes the flow path of the input pipe,
A flow meter that measures the flow rate of the washing chemical solution flowing through the charging pipe, and
Equipped with a,
The washing chemical solution is constantly circulated in the circulation pipe by the circulation pump, the valve of the charging pipe is opened, and the washing chemical solution is charged into the washing machine tub while measuring the flow rate with the flow meter. A device for adding laundry chemicals. The input device according to claim 1, wherein the flow meter is a non-contact flow meter. Claim 1 or claim 1, wherein a pressure sensor for detecting the pressure of the washing chemical liquid flowing in the return pipe is provided in the return pipe on the downstream side of the branch portion of the circulation pipe with the input pipe. 2. The input device according to 2. The charging pipe is provided as a plurality of branches from the circulation pipe so that the washing chemical solution is charged into the plurality of washing machine tubs, and the valve and the flow rate are provided in each of the plurality of charging pipes. The loading device according to any one of claims 1 to 3, wherein a meter is provided. It is a method of charging a washing chemical solution into the washing machine tub of a commercial washing machine in the linen supply industry or the cleaning industry using a charging device.
The charging device circulates a chemical solution tank for accommodating the chemical solution for washing and a chemical solution for washing in the chemical solution tank so as to be sent from the chemical solution tank side to the washing machine tank side and returned from the washing machine tank side to the chemical solution tank side. A circulation pipe, a circulation pump that circulates the washing chemicals through the circulation pipe, and a charging pipe that is branched from the circulation pipe and is provided to feed the washing machine tub into the washing machine tub. , A valve and a flow meter provided in the input pipe,
The washing chemical solution is constantly circulated in the circulation pipe by the circulation pump.
A method for charging a washing chemical solution by opening the valve of the charging pipe and charging the washing chemical solution into the washing machine tub while measuring the flow rate with the flow meter.

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