JPH05269294A - Starch boiling and feeding device for washing machine - Google Patents

Abstract

PURPOSE:To obtain the simple constitution of the paste feeding device for washing machine. CONSTITUTION:In a steam feeding passage 17 arranged in a washing tank 9, the first valve 18, ejector 19, and the second valve 20 are arranged in this order from a steam feeding source. When steam is supplied into the washing tank 9, the paste liquid in a paste tank 24 is sucked and introduced into the washing tank 9 through a suction pipe 22 connected to the suction port 21 of the ejector 19. Further, when the second valve 20 is closed to feed the steam into the paste tank 24 from the suction pipe 22, starch boiling is enabled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paste cooker for a washing machine.

[0002]

2. Description of the Related Art Conventionally, the following types of paste cooking and paste liquid supply devices have been known. That is, Japanese Utility Model Publication No. 57-10310 discloses a device in which compressed air is inserted into a glue tank capable of cooking paste and the glue liquid is supplied to a washing tub by this air pressure.

In this conventional example, the glue tank has to have a closed structure in order to pump the glue liquid, and when the glue tank is pressurized, the glue scatters and adheres to the glue cooking control electrode in the tank,
It has a factor that causes malfunction when controlling the paste cooking.

[0004]

Therefore, the present invention has been made to solve the above problems, and simplifies the structure of the glue tank. The purpose of the present invention is to facilitate the cooking of the paste in the paste tank and the supply of the paste liquid to the washing tub.

[0005]

According to the present invention, there is provided a washing tub in which a washing drum is rotatably mounted, a steam supply path provided between the washing tub and a steam generating source, and a steam supply path. First, which is inserted in order from the steam generation source. A second valve and an ejector interposed in a steam supply path between the two valves
And a suction pipe connected to a suction port provided between an inlet and an outlet of the ejector, and a paste which is sucked through a lower opening of the suction pipe and is used to boil and supply a paste solution to the washing tub. When the second valve is closed, the steam from the steam generation source is supplied to the glue tank through the suction pipe, and when the second valve is opened, the glue liquid in the glue tank is washed by the ejector. The control is performed by switching so that it is introduced into the tank.

[0006]

Operation: That is, when the paste solution is supplied, the first. While opening the second both valves and supplying steam to the washing tub, the glue liquid is sucked up from the suction pipe connected to the suction port of the ejector interposed between the two valves and supplied to the washing tub.
When cooking the paste, the second valve is closed and the ejector. The glue is cooked by supplying steam to the glue tank via the suction pipe.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes an exterior frame, and a door 2 is pivotally supported by a hinge 3 on the front surface of the washing machine so that a door 2 can be opened and closed so that an article to be washed can be put in and taken out. Reference numeral 4 is a door lock, and 5 is an operating portion, which is provided with a start switch 6 and a select switch such as an operation program button 7. 8a is a switch for cooking the paste, 8b is a switch for supplying the paste, and 9 is a washing tub which is suspended from the frame 1 by a vibration-proof spring 10. A washing drum 11 is rotatably provided in the washing tub 9 by a bearing device 12, and is decelerated by a washing motor 13 via a pulley 14.15 and a belt 16.
Reference numeral 17 denotes a steam supply path provided between a steam supply source (not shown) and the washing tub 9. The steam supply path 17 includes a first valve 18, an ejector 19, and a second valve in order from the steam supply source side. 20 are arranged. 21 is the ejector
A suction port formed in 19 is connected to a suction pipe 22 having an opening 23 at the lower end. 24 is a glue tank made of an anticorrosive material with an open upper surface, and the lower end of the suction pipe 22 is inserted therein.

The details of the ejector 19 will be described.
Reference numeral 25 is an ejector main body, and the first valve 18 is connected to the ejector inlet 25A via a joint 27. Reference numeral 26 is a bag-type fixing nut for connecting the joint 27, 28 is a suction chamber formed in the ejector main body 25, and the suction chamber 28 is supplied with steam in the direction of a solid line arrow a. Reference numeral 29 denotes a first nozzle screwed into the ejector inlet 25A, which has an inner diameter smaller than the inner diameter of the opening of the joint 27, and the tip of which projects into the suction chamber 28 in the ejector 19. Reference numeral 30 denotes an outlet provided in the suction chamber 28, which is provided at a position facing the tip of the first nozzle 29. 31 is a second nozzle screwed to the outlet 30, 32
Is the second nozzle 3 to which steam or glue is supplied in the direction of the solid arrow b
1 is an ejector outlet formed in the direction of the tip of the washing tub 9
Is connected by a steam supply path 17 via the second valve 20. The base portion 31A of the second nozzle 31 attached to the outlet 30 of the suction chamber 28 is screwed so that the degree of protrusion can be adjusted from the surface of the outlet 30 toward the suction chamber 28 side. This adjustment is to adjust the close distance between the base portion 31A and the tip end portion of the first nozzle 29. This is the amount of the glue liquid suctioned from the suction pipe 22 inserted into the glue tank 24, and the paste liquid when the glue is cooked. The amount of steam supply is adjusted.

The operation of the above-described paste cooking and paste liquid supply will be described. Generally, when the washing operation is completed and the laundry needs to be glued, a glue solution according to the amount of the laundry is put into the washing tub, and the washing drum 11 is rotated to perform the glueing. At that time, water or hot water for gluing is applied to the washing tub 9 so that the liquid level is 1
To 2 degrees (the radius of the washing drum is divided into 10 equal parts and divided into liquid levels of 1 degree (low level) to 10 degrees (high level)), and the glue liquid supplied is diluted and used. It is common to use starch of grain as this paste solution, and it is said that the cleaning finish is not good because the paste solution does not reboil or is left for too long, and the cleaning finish is not good. It is good to boil the liquid volume each time.

First, when the paste solution is boiled and cooked, a predetermined amount of starch and a predetermined amount of water are put in the paste tank 24 and stirred with a whisk. Next, when the paste cooking switch 8a of the operation unit 5 is operated to open the first valve 18, the steam is supplied to the steam supply path 17,
It is supplied to the glue tank 24 from the opening 23 of the suction pipe 22 via the first nozzle 29 of the ejector 19, the suction chamber 28, and the suction port 21. The inside of the glue tank 24 is boiled with steam while stirring with a whisk to make a glue solution. This paste solution is prepared by boiling for about 30 minutes, and it is usually recommended to make the paste solution with a concentration of about 7 to 10%.

When the glue liquid is supplied to the washing tub 9, the glue cooking switch 8a and the glue supply switch 8b of the operation unit 5 are operated to perform the first. When the second both valves 18 and 20 are opened, steam is supplied to the washing tub 9 through the steam supply passage 17, the first nozzle 29 and the second nozzle 31 of the ejector 19. When steam is supplied to the washing tub 9 as described above, a suction force is generated toward the ejector-outlet 32 in the gap between the tip of the first nozzle 29 of the ejector 19 and the base 31A of the second nozzle 31. Then, the glue liquid in the glue tank 24 passes through the opening 23, the suction pipe 22, and the suction port 21, and then the suction chamber 2
8 and is sucked in the direction of the dotted arrow, mixed with steam and introduced into the washing tub 9.

As an example of dilution at the time of gluing, a press finish is good when it is diluted to a concentration of, for example, 2% for a shirt, 1.2-1.4% for a yukata, and 0.8% for a sheet.

[0014]

According to the present invention, the suction pipe can be used as both the supply pipe for supplying steam when cooking the paste and for supplying the paste to the washing tub.
Then, the glue liquid having a simplified structure can be automatically supplied to the washing tub. In addition, it is possible to provide a washing machine equipped with a paste cooking supply device at low cost.

[Brief description of drawings]

FIG. 1 is a side cross section of a washing machine embodying the present invention.

FIG. 2 is a cross-sectional view of a main part of an ejector that sucks glue liquid.

FIG. 3 is a schematic front view of a washing machine embodying the present invention.

[Explanation of symbols]

 9 Washing tub 11 Washing drum 17 Steam supply path 18 First valve 19 Ejector 20 Second valve 21 Suction port 22 Suction pipe 23 Open hole 24 Glue tank

Claims (1)

[Claims] 1. A washing tub in which a washing drum is rotatably installed, and a steam supply path provided between the washing tub and a steam generating source.
The first steam generator is provided in the steam supply path in order from the steam source.
A second valve, an ejector interposed in a steam supply path between the two valves, a suction pipe connected to a suction port provided between an inlet and an outlet of the ejector, and a lower opening of the suction pipe. It consists of a glue tank that is sucked through the holes and used to boil and supply the glue solution to the washing tub, and when the second valve is closed,
Washing characterized in that the steam from the steam generating source is supplied to the glue tank through the suction pipe, and when the second valve is opened, the glue liquid in the glue tank is introduced into the washing tub by the ejector. Paste cooker for machine.