WO2005053501A1

WO2005053501A1 - Automatic supply device for powder and granular detergent

Info

Publication number: WO2005053501A1
Application number: PCT/JP2004/009402
Authority: WO
Inventors: Hiroshi Furusato; Norihiko Shiroichi
Original assignee: Niitaka Co., Ltd.
Priority date: 2003-12-03
Filing date: 2004-06-25
Publication date: 2005-06-16
Also published as: JP4473220B2; JPWO2005053501A1

Abstract

An automatic supply device for powder and granular detergent, comprising a hopper, a feed screw horizontally installed in a casing positioned at the lower part of the hopper and having a feed port at the side end thereof, a mixer for mixing the powder and granular detergent fed in order from the feed port by the feed screw with feed water which is installed on the lower side of the feed screw, and a connection tube connected to the mixer. The end part of a rotating shaft including a part of the blade part of the feed screw is projected from the feed port of the casing.

Description

Automatic document feeder for granular detergents

The present invention relates to an apparatus for automatically supplying particulate detergent to a washing tank such as an automatic dishwashing apparatus. Background art

As an automatic feeder for the granular detergent to the washing tank, such as an automatic dishwashing device, water is dispersed on the lid surface of the cartridge container, and it is replaced with a device for feeding the contained granular detergent. There has been proposed an apparatus in which powder detergents are dropped freely and supplied to a mixer.

As an apparatus for automatically supplying a particulate detergent having such a hopper, there is one disclosed in Japanese Patent Application Laid-Open No. 2002-324. This apparatus is provided with a feed screw having a helical wing portion in a casing at the lower portion of the hopper, and the feed screw rotates the powdery granular detergent which falls freely from the inside of the hopper, while feeding the feed port of the casing. To the mixer sequentially. The detergent aqueous solution obtained by mixing the supplied granular detergent and the supply water separately supplied into the mixer provided at the lower position is supplied to the washing tank in the automatic dishwashing apparatus or the like. Ru.

However, the above-described conventional automatic feeder for powder detergent having the hopper has the following disadvantages. Hereinafter, description will be made with reference to FIGS. 11 to 20 which are explanatory diagrams of the conventional device.

First, in the hopper 2 in the conventional apparatus, the load of the powdery detergent 1A contained therein is concentrated on the feed screw 4 provided in the lower casing 3 thereof. For this reason, as shown in FIG. 11 and FIG. 12, the state 1 A is placed between the wing portions 4 b spirally provided on the screw shaft 4 a of the feed screw 4. It will be densely packed as a (a part surrounded by a two-dot chain line). At this time, feed screw An excessive load is applied to the rotary shaft 4a of 4 and causes deterioration of the drive motor. Also, when the supply detergent rotates while the granular detergent 1 A is tightly filled with the granular detergent between the wings 4 b, the outlet 2 a, which is the interface between the hopper 2 and the casing 3, The granular detergent 1A may bite into the feed screw 4 and the feed screw 4 may stop rotating.

Also, when the granular detergent 1A near the supply port 3a falls spontaneously due to the vibration applied to the casing 3, the movement of the granular detergent 1A to the generated gap occurs in a chain, and the movement is by the casing 3 It will reach Hopper 2 without stopping. In this way, when the granular detergent 1A falls like an avalanche, a large amount of granular detergent 1A will be deposited in the mixer, causing clogging in the mixer or the piping in the middle. In order to prevent the powder-like detergent 1 A from falling like an avalanche, even if a free fall occurs in the vicinity of the delivery opening 3 a, a chain of particles ^ to the void in the casing 3! It is necessary to ensure that the movement of the dog detergent does not reach hopper 2. For this purpose, it is necessary to widen the distance between the hopper outlet 2a and the casing 3 inlet 3a. In this case, the width dimension of the feeding device becomes larger, which results in the impediment of compacting the feeding device.

Second, in the conventional apparatus, as shown in FIG. 13 and FIG. 14, the particulate detergent which is covered with water vapor and retained in the portion of the supply port 3a of the casing 3 containing the supply screw 4 A adheres to the supply port 3a. When the sticking detergent 1 B is further accumulated and fixed to the supply port 3 a, the flow of the particulate detergent 1 A to be supplied thereafter is stopped, and the supply position is displaced above the supply port 3 a. And, the scope of supply of powder ^! Dog detergent 1 A unnecessarily expands.

Thirdly, in the conventional feeding apparatus, the powdery / granular agent 1A fed to the casing 3 bites the feeding screw 4 into the feeding screw 4 to eliminate the adverse effect that the shaft rotation of the feeding screw 4 is stopped. A gap 3 b of about l to 3 mm is provided between the wing 4 b end of the supply screw 4 and the inner wall of the casing 3. However, as shown in Fig.15 and Fig.16, in the vicinity of the supply port 3a of the casing 3, moisture is applied to the powdery detergent 1A remaining in the gap 3b, and as in the fixed detergent 1B, It adheres to the inner wall of the supply port 3a and 3b and becomes stuck. The operation to remove this fixed detergent 1 B is

One five one person

Have difficulty. Generally, it is necessary to remove the feed screw 4 from inside the casing 3 to remove the sticking detergent 1 B.

Fourth, as shown in Fig. 17 and Fig. 18, the wings 4b of the supply screw 4 are inclined at an angle close to 90 ° with respect to the rotation axis 4a. The rotation torque of 4 can be reduced, which is advantageous. However, if the entire wing 4 b is inclined at an angle close to 90 °, the tip 4 c of the feed screw 4 is present between the wings 4 b in the delivery process of the granular detergent 1 A The granular detergent 1A falls from a higher position, and the scattering range is expanded.

Fifth, as shown in FIG. 19 and FIG. 10, in the conventional apparatus, the mixer 5 is provided at the lower position of the casing 3 and the supply port 3a is provided immediately above the outlet 5a. There is. The mixer 5 has a connecting pipe 6 connected to the outlet 5a for discharging the aqueous detergent solution. In order to prevent splashing of the granular detergent 1A when it is supplied, reaction between the granular detergent and the feed water is carried out at the inside of the outlet 5a where the granular detergent 1A falls. It will be. However, since the connecting pipe 6 is formed of an L-shaped pipe, when the particulate detergent 1 A is deposited by free fall or the like in the bent portion of the L-shaped pipe, the water flow passage narrows or the connecting pipe Block the

Sixth, in the conventional apparatus, by supplying the particulate detergent 1A and the feed water into the mixer 5, a suitable aqueous solution of detergent can be obtained. In the storage tank of the washing machine to which this aqueous detergent solution is supplied, water vapor is generated because the temperature is raised to around 60 ° C. This water vapor extends over the supply channel of the granular detergent 1A described above to fix the granular detergent 1A remaining in the channel.

Therefore, in the present invention, in view of the above-mentioned points, the powdery particulate detergent supplied from the hopper is tightly packed between the wings of the supply screux, so that an excessive load is not applied to the supply screux. Also, since the particulate detergent stays in the vicinity of the supply port and adheres, the particulate detergent supplied later is dammed to prevent it from being scattered or fallen over a wide area, and the particulate detergent is also deposited. A compact device having a compact structure, which is never clogged in a connecting pipe connected to a mixer, does not have water vapor on the supply path of the particulate detergent, and can always keep the concentration of the aqueous detergent solution obtained constant. It aims at providing an automatic supply device of detergent. Disclosure of the invention

In order to achieve the above object, the apparatus for automatically feeding particulate detergent of the present invention comprises: a hopper for containing the particulate detergent; and a hopper located at the lower part of the hopper and having a feeding opening at a side end thereof. And a powdery detergent that has been sequentially fed out from the feeding port of the casing by means of a feed screw provided below the feed screw and provided on the lower side of the feed screw. A feeding device comprising a mixer for mixing with a separately supplied feed water, and a connecting pipe connected to the mixer for feeding a detergent aqueous solution obtained by the mixing, comprising: a wing portion of the feeding screw; An end of a rotary shaft including a part of the projection is provided so as to project from the supply port of the casing.

According to this configuration, the particulate detergent supplied to the end of the supply port is maintained in the moving state, so that the particulate detergent does not remain, stick and deposit.

In the above configuration, it is preferable that the wing portion at the feed screw end at the feed port at the end of the casing has an inclination angle in the range of 10 ° to 60 ° with respect to the screw axis. .

In this configuration, the pitch between the wings of the feed screw increases, and the volume of the wing pitch increases at that portion, so that the particulate detergent remaining in that portion is reliably from the bottom of the feed opening. It can be dropped.

Also, in the above configuration, a cone baffle is provided in the hopper along the rotation axis so as to cover the upper surface portion of the feed screw, and the cone baffle from the hopper to the granular detergent It may be configured to be supplied to the supply screen in a dispersed state.

With this configuration, it is possible to prevent the load of the supplied granular detergent from being concentrated on the supply screw and being densely packed. Therefore, the occurrence of the above-mentioned drawbacks of the particulate detergent due to the occurrence of biting and collapse in the casing due to the particulate detergent being densely filled between the supply screws is prevented. Ru.

Further, in the above configuration, the supply port of the casing may be configured by a port-shaped portion made of a flexible material.

With this configuration, the wing end of the supply screw near the supply port is not Even if water vapor adheres to the particulate detergent staying in the gap with the inner wall of the shing, it is possible to easily release the adhered detergent part based on the softness of the soft material in the mouth part. It becomes possible.

In addition, in the above configuration, the hopper is provided with a vibration motor, and driving of the vibration motor eliminates the stagnation and accumulation of particulate washing in the hopper and casing. It may be configured to

In this configuration, the vibration action of the vibration motor is transmitted to the hopper including the lower casing, so that the particulate detergent does not stay in the supply path in the hopper or the like.

In the above configuration, the connecting pipe connected to the mixer may be curved in an L shape and the lower portion thereof may be inclined with respect to the horizontal surface.

In this configuration, since the lower portion of the connecting pipe is inclined, the particulate detergent does not concentrate on the bend in the connecting pipe. Also, even if the granular detergent is supplied in an avalanche-like manner due to falling down etc. and the granular detergent is deposited in the connecting pipe in the absence of water flow, the flow path of the supplied water along the slope of the connecting pipe. As it is secured, the connecting pipe will not be completely blocked by the particulate detergent.

Furthermore, in the above configuration, an irregular shaped cheese is connected to the steam removal and drain pipe provided in the mixer, and the irregular shape causes the overflow of the supplied water in the mixer and the washing machine or the particulate detergent on the way. It may be configured to prevent the water vapor generated in the supply path from flowing back to the supply path of the particulate detergent.

With this configuration, it is possible to prevent the overflow of the feed water in the mixer and the water vapor reaching the mixer from reaching the supply path of the particulate detergent. Therefore, it is possible to prevent the overflow of the feed water in the mixer and the sticking of the deposited particulate detergent by water vapor.

Further, in the above configuration, the mixer is provided with a water flow sensor for detecting a flowing water state of the supplied water in the mixer, and when the flowing water state is abnormal, the effect of the abnormality is detected from the water flow sensor. It may be configured to stop the shaft rotation of the supply screw in response to the detection signal of.

Furthermore, in the above configuration, the mixer may be provided with a water level in the mixer. If a water level sensor is installed to detect the status and the water level status is abnormal, the above water level sensor receives a detection signal indicating that the status is abnormal, and all the operations on the supply device are stopped It may be configured to

In such a configuration, the electric conductivity of the feed water and the aqueous detergent solution in the mixer is detected by the water flow sensor and the water level sensor provided in the mixer, and the drive of the supply screw is performed according to the detection signal. It is possible to stop the supply of the particulate detergent by the control unit or to stop all the operation of the supply unit. Brief description of the drawings

FIG. 1 is a longitudinal front view of a powdery particulate detergent supply apparatus according to a preferred embodiment of the present invention.

FIG. 2 is a cross-sectional and partial plan view of the particulate detergent supply apparatus according to the preferred embodiment of the present invention.

FIG. 3 is a partial longitudinal cross-sectional view for explaining the mounting state of the cone baffle of the powdery particulate detergent supply apparatus according to the preferred embodiment of the present invention.

FIG. 4 is a partial longitudinal cross-sectional front view for explaining the projecting state of the end portion of the supply screw with respect to the casing of the powder and particulate detergent supply device according to the preferred embodiment of the present invention. .

FIG. 5 is a partial vertical front view for explaining the function of the end of the casing of the powdery particulate detergent supply apparatus according to the preferred embodiment of the present invention.

FIG. 6 is a partial plan view for explaining the function of the mixer of the powdery particulate detergent feeder according to the preferred embodiment of the present invention.

FIG. 7 is a partial cross-sectional front view for explaining the function of the connecting pipe of the powdery particulate detergent supply apparatus according to the preferred embodiment of the present invention.

FIG. 8 is a partial cross-sectional front view for explaining the function of the 7-steam exhaust and drain pipe of the particulate detergent supply system according to the preferred embodiment of the present invention.

FIG. 9 is a bottom view illustrating the mounting form of the modified cheese with respect to the mixer of the powdery granular detergent feeder according to the preferred embodiment of the present invention.

FIG. 10 shows the mixing of the powdery granular detergent supply apparatus according to the best mode of the invention. It is a longitudinal cross-section front view explaining the form of a container.

FIG. 11 is a partial longitudinal front view for explaining the supply state of the granular detergent in the hopper in the conventional granular detergent supply device.

FIG. 12 is a cross-sectional partial plan view for explaining the state of supply of the particulate detergent in the hopper in the conventional supply of the particulate detergent.

FIG. 13 is a longitudinal partial front view for explaining the supply state of the granular detergent from the supply port of the casing in the conventional granular detergent supply device.

FIG. 14 is a partial side view for explaining the supply state of the granular detergent from the supply port of the casing in the conventional granular detergent supply device.

FIG. 15 is a partial vertical front view for explaining the supply state of the granular detergent from the feeding port of the casing in the conventional granular detergent supply device.

FIG. 16 is a partial side view for explaining the supply state of the granular detergent from the feeding port of the casing in the conventional granular detergent supply device.

FIG. 17 is a vertical partial front view for explaining the supply state of the granular detergent from the feed opening of the casing in the conventional granular detergent supply device.

FIG. 18 is a partial side view for explaining the state of supply of the particulate detergent from the feeding junction of the casing in the conventional feeder for the particulate detergent.

FIG. 19 is a partial plan view for illustrating the supply state of the particulate detergent supplied into the mixer from the yarn connection of the casing in the conventional supply of the particulate detergent. FIG. 20 is a vertical partial front view for explaining the supply state of the particulate detergent supplied into the mixer from the supply port of the casing in the conventional supply of the particulate detergent.

BEST MODE FOR CARRYING OUT THE INVENTION

The best mode for carrying out the apparatus for automatically supplying a particulate detergent according to the present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal front view of an automatic powder feeder automatic feeder 10. The automatic supply system 10 for powdery granular detergents comprises a hopper 1 1, a casing 1 2 provided at the lower part of the hopper 1 1, a supply screw 1 3 housed in a casing 1 2, and a casing A mixer 16 receiving the particulate detergent supplied from the supply port 12a at the left end of the casing 12 and a connecting pipe 16 connected to the mixer 16 are provided at the lower position of the 12 And concatenated cheese 2 1. The respective parts such as the hopper 11 are housed in an outer case, and the outer case is supported by a support shelf 10 a.

A predetermined amount of particulate detergent is accommodated in the hopper 11. Based on the load of the particulate detergent, the particulate detergent is sequentially dropped from the discharge port 11a at the lower part of the hopper 11 and discharged downstream, and a predetermined amount of particulate detergent is sequentially supplied to the inside of the casing 12.

The side wall of the hopper 11 is provided with an electrically operated vibration motor 1 l b. The vibration action of vibration vibration 1 1 b is transmitted to the hopper 1 1 and casing 1 2, and the particulate detergent supplied in the casing 1 2 or the like is prevented from remaining in the form of a bridge. .

Inside the hopper 11, as shown in FIG. 2 and FIG. 3, a cone baffle 14 is provided so as to cover the upper surface portion of the feed screw 13. The cone baffle 14 has a chevron shape at the central portion 14 a and a projecting end 14 b at which both ends are in contact with the inner wall of the hopper 11, and a distance from the side edge of the inner wall of the hopper 11 It is arranged in the state of having. Therefore, at the discharge port 11a of the hopper 11, the granular detergent is supplied to the rim portion thereof in a state of being evenly dispersed at the side rim portion of the cone baffle 14. Therefore, the load of the particulate detergent does not cause the particulate detergent to be densely packed between the specific wings 13 b of the supplied screw 13. As a result, the powder detergent is densely packed between the wings 13 and the supplied scribble 13 bites into the powder detergent and is also supplied to the avalanche 4 dog due to the fall of a large amount of the powder detergent. There is nothing to do.

By providing the cone baffle 14 inside the hopper 11, the width of the casing 12 can be narrowed, so that the overall size of the feeding device 10 can be made compact.

The feed screw 13 is formed by a rotating shaft 13 a and a wing 13 b spirally provided along the rotating shaft 13 a. In addition, a driving motor 15 is connected to the shaft end of the rotary shaft 13 a and rotates the feed screw 13.

The feed screw 13 is horizontally accommodated inside the casing 12. did Therefore, when the rotary shaft 13a is rotationally driven, a constant amount of the particulate detergent 1A is sequentially transferred from the hot spring 11 to the supply port 12a by the wing 13b.

As shown in FIG. 4, the feed screw 13 is provided such that the left end portion 13c of the rotary shaft 13a including the part of the wing portion 13b projects from the feed port 11a. There is. Due to this structure, the powder granular detergent 1 A is supplied according to the wing portion 1 3 b 1 supply port for 2! It will be transported to _ 2 a, and the retention of the granular detergent 1 A at the feed port 12 a will be dissolved.

Furthermore, as shown in FIG. 4, the supply port 12a of the casing 12 is formed by a port-shaped portion 12b made of a flexible material fitted to the end 12c of the tube. . According to this structure, even if the particulate detergent 1A which is staying may stick to the mouth portion 1 1 b by water vapor, it can be easily removed by deforming the mouth portion 1 2 b.

The angle of inclination of the wing 13 b with respect to the axis of rotation 13 a is 60 ° or more. On the other hand, as shown in FIG. 5, the end portion 13 d may be configured to have an inclination angle a of 10 ° to 60 ° with respect to the axis of the rotation axis 13 a.

If the end portion 13 d is formed at a larger angle of inclination angle α of 10 ° to 60 °, the pitch between the wings 13 b in the end portion 13 d suddenly widens. As a result, when the feed screw 13 is rotated, the particulate detergent 1 A is reliably dropped from the lower side of the feed port 12 a and is fed into the mixer 16 from the feed port 12 a. At this time, the particulate detergent 1 A is supplied to the inside of the water port 16 a in the mixer 16. The particulate detergent 1A is supplied to the water outlet 16a in order to prevent the mixed aqueous solution from splattering around the mixer 16 when it is mixed with the feed water.

As shown in FIG. 6, in accordance with the supply of the granular detergent 1A, in the mixer 16, the feed water is supplied into the mixer 16 from the water pipes 17 of each side wall. Also, as shown in Figure 1, the water conduit 17 is provided with a solenoid valve 18 for the water conduit 17.

The feed water supplied from the water pipe 17 flows along the inclined plate surface 16 b in the mixer 16 toward the lower outlet 16 a. The flow of the feed water on the plate surface 16 b mixes the particulate detergent and the feed water inside the outlet 16 a. This detergent aqueous solution will flow from the outlet 16a through the connecting pipe 19 into the reservoir of the washing machine. As shown in Fig. 7, the lower part 19a of the L-shaped pipe is inclined to the horizontal plane as shown in Fig.7. When the granular detergent 1A is supplied into the mixer 16 due to the drop, the granular detergent 1A is deposited on the lower portion 19a. However, if the falling amount of the particulate detergent 1 A is less than 30 g, a gap 19 b will be formed at the upper part in the connecting pipe 19 to form a water flow channel. There is no blockage inside. When the granular detergent 1A is supplied in an avalanche manner due to collapse or the like, as shown in FIG. 8, the outlet 19a is closed and the water level in the mixer 16 rises. Since the water flow path through the steam removal and drain pipe 20 functions, the powder-like detergent 1 A is clogged in the connecting pipe 19 due to the water pressure extrusion effect of the feed water staying in the mixer 16. There is no.

As shown in FIG. 7, the mixer 16 is provided with a water vapor removal and drain pipe 20 whose upper opening end is open. The upper end of the steam removal and drain pipe 20 is provided at a position lower than the peripheral wall of the countersink 16 b in preparation for the overflow of the feed water in the mixer 16.

As shown in FIG. 7 and FIG. 9, the deformed cheese 21 is connected to the steam removal and drain pipe 20. Furthermore, in order to supply the supplied aqueous solution to the washing machine of the washing machine via the deformed cheese 21, the deformed cheese 21 is connected to the connecting pipe. Since the aqueous detergent solution in the storage tank is maintained at a temperature of about 60 ° C., water vapor is generated from the aqueous detergent solution and is accumulated in the supply path of the granular detergent before the modified cheese 2 1. In the steam removal / drain pipe 20, this water vapor is released to the outside through the connected deformed cheese 21.

As shown in FIG. 10, the mixer 16 is provided with two water flow sensors 12 and 22 on the plate surface 16 b and a water level sensor 23 on the peripheral wall. If the feed water flow is stopped for some reason, the electrical conductivity between the two water flow sensors 22 will be almost zero, and it will be detected that the feed water is not flowing. Furthermore, if the feed water is retained due to clogging of the granular detergent 1A with the connection pipe 19 and so on, and the water level in the mixer 16 is rising, the flow sensor 2 2 and the water level sensor 1 2 3 The electric conductivity in between is also measured to detect the water level condition.

The detection signal of the flowing water state and the presence or absence of the water level state in the mixer 16 is The electric circuit provided in the dynamic supply device 10 causes the supply device 10 to operate or stop in accordance with the following program. :

That is, the concentration of the cleaning agent in the cleaning tank of the cleaning machine is measured by the electrical conductivity, and when the difference between the set concentration and the actual concentration is large, the supply screw 13 is intermittent or nearly continuous. Drive to When the difference is moderate, the drive of supply screw 13 is intermittently driven, and when the difference is small, the drive state of supply screw 13 is driven in an intermittent state close to stopping. Powdered particles ^ (Detergent detergent supply is performed automatically. At this time, whether the water flow of the feed water in the mixer 16 is secured or the water level in the mixer 16 abnormally rises If normal, supply of the powder detergent is continued as it is, and if it is abnormal, alarm display is performed, and the supply operation is interrupted partially or entirely, and the abnormality is canceled. It is an automatic recovery system.

The present invention can be practiced in various other forms without departing from the spirit or main features thereof. Therefore, the above-described embodiments are merely illustrative in all respects and should not be construed as limiting. The scope of the present invention is shown by the claims, and is not bound by the description. Furthermore, all variations and modifications that fall within the scope of the claims fall within the scope of the present invention.

This application is an application based on Japanese Patent Application No. 2 0 0 3 0 4 5 5 7 filed in Japan, the contents of which are incorporated into the present application by reference thereto. Further, the documents cited in the present specification are all specifically incorporated by reference thereto. Industrial applicability

The present invention is applicable to an apparatus for automatically supplying a particulate detergent to a washing tank such as an automatic dishwashing apparatus and an apparatus having such a function.

Claims

The scope of the claims

1. A hopper for containing the particulate detergent, a feed screw located in the lower part of the hopper and having a feed opening at the side end along the horizontal direction, and provided under the feed screw, the shaft A mixer for receiving the particulate detergent which has been sequentially delivered from the casing feed port by means of a rotating feed screw, and for mixing it with a feed water which has been separately delivered separately from the particulate detergent. According to the present invention, there is provided a feeding device comprising a connecting pipe connected to the mixer for feeding a detergent aqueous solution, wherein an end of a rotary shaft including a part of a wing portion of the feeding screw is provided to project from a feeding port of the casing. An automatic feeder for a granular detergent characterized by being

2. The blade portion of the feed screw end at the feed port at the end of the casing has an inclination angle in the range of 10 ° to 60 ° with respect to the screw axis. An apparatus for automatically supplying a particulate detergent as described in Item 1.

3. A co-baffle is provided in the flange along the rotational axis so as to cover the upper surface portion of the feed screw, and the co-baffle disperses the particulate detergent from the hopper. The powder and granular detergent as claimed in claim 1 or 2, which is supplied to the supply screw in a state.

4. The automatic feeder for the powdery particulate detergent as set forth in any one of claims 1 to 3, characterized in that the supply port of the casing is constituted by a mouth portion made of a flexible material. .

5. The hopper is provided with a vibration motor, and by driving the vibration motor, the particulate and granular washing is prevented from staying and accumulating in the hopper and the casing. An automatic feeder for a granular detergent as claimed in any of the claims 1 to 4.

6. The connecting pipe connected to the mixer is bent in an L-shape and the lower part is inclined with respect to the water plane. Automatic supply device of powdery granular detergent described in.

7. A modified cheese is connected to a steam removal and drain pipe provided in the mixer, and the excess cheese from the mixed cheese causes the flow of the feed water in the mixer and the supply of the washing powder or the powdery granular detergent in the middle. 7. The apparatus for automatically feeding powdery detergents according to any one of claims 1 to 6, wherein water vapor generated in the paths is prevented from flowing backward to the feed path of the granular detergents.

8. The mixer is provided with a water flow sensor for detecting the flowing water condition in the mixer, and when the flowing water condition is abnormal, a detection signal indicating the abnormality from the water flow sensor 8. The apparatus for automatically feeding powdery detergents according to any one of claims 1 to 7, wherein the shaft rotation of the feed screw is stopped upon receipt of the signal.

9. The mixer is provided with a water level sensor for detecting the water level condition of the feed water in the mixer, and when the water level condition is abnormal, the water level sensor 1 indicates that the water condition is abnormal. The automatic supply device for the powdery detergent according to any one of claims 1 to 8, wherein all operations in the supply device are stopped upon receiving a detection signal.