JP3240353U - washing machine - Google Patents

Abstract

A washing liquid is sprayed into the liquid from an underwater spray nozzle at high speed, and the high-speed water jet accompanied by cavitation collides with the laundry in the liquid, whereby the washing power can be improved and the continuous washing process can be performed. To provide a washing machine having a washing device capable of A washing machine is provided with a spray nozzle for colliding a high-speed water jet accompanied by cavitation with the laundry in order to wash, circulate, and agitate the laundry, and the washing liquid emitted from the nozzle can pass through the laundry. and a device for circulating the washing liquid, and a laundry conveying device for carrying the laundry into the washing tank, carrying it out of the washing tank, and carrying it in and out of the next process. [Selection diagram] Fig. 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a domestic or commercial washing machine for washing clothes and fabrics.

Conventional washing machines include, for example, a spiral type, a stirring type, and a drum type in terms of washing methods. The spiral type uses a pulsator at the bottom of the washing tub to rotate the washing liquid and the clothes together. is a beat washing method in which the washing liquid and clothes are pulled up and dropped in a drum that rotates around a horizontal axis. In addition, Patent Document 1 proposes a conventional washing machine equipped with a foam generator that introduces compressed air with an air pump in order to improve washing performance while saving water. In these washing methods, the washing liquid and the laundry (clothing, cloth) are agitated or beaten to remove dirt chemically and physically, so the cloth is severely damaged due to the twisting of the laundry and the rubbing of the laundry. . Furthermore, there are problems such as pollution of the washing liquid after use and the durability of the rotating parts of the washing machine. Moreover, in the above washing method, there is also the problem that it is difficult to select the optimum selection condition by changing the condition for each piece of clothing depending on the type of clothing.

As a method to improve this problem, Patent Documents 2, 3, and 4 use as little detergent as possible and use ultrasonic waves without rotating blades, stirring blades, or rotating drums used to increase washing performance. A washing machine is also proposed. Furthermore, Patent Documents 5 and 10 disclose a washing machine that combines an ordinary washing machine and ultrasonic waves, and a washing machine that cleans laundry by injecting a cleaning liquid into the liquid at high speed to generate cavitation in the washing tub. is also proposed. Also. Japanese Laid-Open Patent Publication No. 2002-200000 proposes a method of continuously vibrating the washing liquid and the laundry by using a belt conveyor in order to wash the clothes continuously. Further, Patent Document 11 proposes a method of washing foods such as vegetables and root vegetables by spraying pressure water on a belt conveyor.

JP-A-2002-18189 Japanese Utility Model Application No. 04-089090 JP-A-62-292191 JP-A-08-089684 Japanese Patent Application Laid-Open No. 2000-061192 JP-A-60-168554 JP-A-06-047665 JP-A-08-257998 JP-A-2000-218246 Japanese Patent Application No. 2016-000496 JP-A-10-276749

Written by Hitoshi Soyama, "Explanation Cleaning with only water stronger than ultrasonic waves: Cavitation jet type cleaning equipment" Nihon Kogyo Shuppan 2001 Ultrasonic techno editorial department, Vol. 13, No. 11, pp. 66-71

The spiral type, agitation type, and drum type of the washing methods of the conventional washing machines are mostly dependent on detergents for the purpose of removing stains from the laundry, and the above methods are used for uniform and efficient washing. used. By the way, in today's world where the pollution caused by the discharge of washing liquid is called out, it is necessary to give the washing machine itself the ability to remove stains from the laundry and to create a washing machine that does not use detergent as much as possible. Furthermore, since the washing machine has a rotating part for agitating the laundry, the service life or failure of the washing machine is mostly caused by the service life or failure of the rotating part. In addition, since it is a batch processing method in which washing is performed collectively, it is not suitable for washing according to the properties of individual laundry items. Furthermore, in a washing machine using ultrasonic waves devised to solve the above problems of the washing machine, as described in Patent Document 3, etc., the washing liquid is not agitated and only the action of ultrasonic vibration is used. Washing tends to cause uneven washing, so it is necessary to provide a new agitating means for mixing the washing liquid in the washing tub and agitating the laundry. There was also the problem of requiring a noise filter to prevent interference.

SUMMARY OF THE INVENTION The present invention is intended to solve such conventional problems and to improve detergency, thereby reducing the pollution caused by the washing liquid after use by using as little detergent as possible. . That is, cavitation is generated by spraying a high-speed washing liquid jet into the washing liquid, and the cavitation is sprayed to clean the laundry, and at the same time, it is agitated to prevent uneven washing and damage to the laundry. To provide a washing machine capable of continuously moving laundry using a configured conveyor or the like. In addition, in washing using a cavitation jet, it is also possible to continuously move the laundry using a conveyor or the like composed of a belt and change the conditions one by one to wash under the optimal selected conditions. In addition, the washing machine of the present invention is capable of continuous washing processing, is excellent in workability when washing a large amount of laundry, requires a small amount of water supply and waste water for washing, and is capable of continuous processing of washing and rinsing. To provide a washing machine excellent in durability.

The problem-solving means according to the present invention is to spray the washing liquid from a nozzle at high speed into the liquid in order to remove stains and agitate the laundry in the washing liquid containing the laundry in the washing tub. Equipped with one or more underwater injection nozzles for colliding high-speed water jets with cavitation on objects. The above nozzles can appropriately jet from one or both sides of the continuously moving laundry. With this configuration, the washing fluid resonated with the shock wave generated by the collapse of cavitation bubbles generated by the high-speed water jet jetted from the nozzle used for removing stains and agitating the laundry and attached to the laundry. Striking against the dirt separates it from the laundry. Furthermore, the angle and the number of nozzles for submersible injection are appropriately selected, and if necessary, the nozzles are installed on the rotating arm, and the laundry and the washing liquid are stirred by the optimum high-speed water jet, and the laundry is washed evenly. You can also choose the conditions under which Patent Documents 6, 7, and 8 propose nozzles with various structures that generate cavitation bubbles, and have been put to practical use in industrial fields such as cleaning, peeling, and excavation.

The washing tank has an inlet for supplying the washing liquid to the nozzle, and the washing liquid sent from the inlet is sprayed from the nozzle into the liquid at high speed, so that dirt mixed in the washing liquid is filtered. Equipped with a filter and a high-pressure pump.

The washing machine of the present invention comprises a washing tank, a laundry holding device for holding the laundry through which the washing liquid sprayed into the liquid at high speed from the nozzle, and one or both of the upper and lower sides of the laundry in the laundry holding device. and a laundry conveying device for carrying the laundry into and out of the washing tank and further carrying it into and out of the rinsing tank. Consist of composition. To provide a washing apparatus capable of continuous washing treatment, excellent in workability when washing a large amount of laundry, requiring a small amount of water supply and drainage required for washing, capable of continuous washing and rinsing treatment, and excellent in maintainability. be able to.

In the washing machine of the present invention, as the speed increases, the pressure decreases, and as a result, the pressure decreases to the saturated vapor pressure of the liquid, and as a result, the liquid becomes bubbles. To effectively remove dirt adhering to details of fibers of laundry put in a washing tub by a cavitation jet which generates cavitation around the jet of high-pressure water. In washing using a cavitation jet, it is also possible to continuously move the laundry using a belt conveyor or the like and change the conditions one by one to wash under the optimal selected conditions. In the cavitation jet, the cavitation generation area and impact force can be controlled by parameters such as nozzle position and injection pressure. Also
For the same power, the cavitation jet can generate several times more impact force than the ultrasonic transducer, and the cleaning ability of the cavitation jet is much stronger than that of conventional ultrasonic cleaning. has been reported.

Moreover, according to the washing machine of the present invention, the following advantageous effects can be obtained. (1) It is possible to continuously perform the washing process, the rinsing process, and the dewatering process, and to provide a washing apparatus that can be automated. (2) When the amount of cleaning liquid in the washing tank decreases, water is automatically supplied from the rinsing water storage tank, and when the water amount decreases, only the rinsing tank needs to be replenished with water, so water can be used effectively. A washable machine can be provided. (3) It is possible to provide a washing machine with a simplified water supply system and a compact washing device.

1 is a cross-sectional view of a main part of a washing machine according to one embodiment of the present invention; FIG. 1 is a side view of a washing machine according to one embodiment of the present invention; FIG. 1 is a front view of a washing machine according to one embodiment of the present invention; FIG. 1 is a rear view of a washing machine according to one embodiment of the present invention; FIG. 1 is a cross-sectional view of a main part of a washing machine according to an embodiment of the present invention taken along line A-A; FIG.

In order to achieve this object, the washing machine according to claim 1 of the present invention comprises a washing tank containing washing liquid, and a washing machine for removing stains and agitating the laundry in the washing liquid in the washing tank. It has an underwater injection nozzle that injects the liquid at high speed from the nozzle into the liquid and collides with the laundry in the liquid with a high-speed water jet accompanied by cavitation, and the washing liquid emitted from the nozzle can pass through the laundry. It is equipped with a laundry holding device for holding and a device for circulating the washing liquid, and is provided with a laundry conveying device for carrying the laundry into the washing tank, carrying it out from the washing tank, and carrying it in and out of the next process. This configuration provides the following effects. (1) The washing tank is filled with the washing liquid at least to such an extent that the submerged spray nozzle is completely immersed. Further, the laundry is washed while being held by the laundry holding device by jetting the washing liquid appropriately from one side or both of the upper and lower sides of the laundry to which the nozzle moves continuously. (2) When the nozzle sprays the washing liquid from one side or both of the top and bottom of the continuously moving laundry, the washing liquid sprays one side or both of the top and bottom of the laundry while being held by the laundry holding device. The washing liquid which passes through and resonates with shock waves generated by the collapse of cavitation bubbles generated by the high-speed water jet jetted from the nozzle violently collides with the laundry and the dirt adhering to it, and the dirt is separated from the laundry. . (3) Since the laundry is exposed to the water flow of the washing liquid, the renewed washing liquid is physically constantly supplied to the surface of the laundry. effectively removes dirt.

As the laundry holding device, a conveyor or the like configured by a mesh-like, grid-like, or perforated belt is used. As the washing liquid, a liquid washing liquid such as water, alkaline water, or an aqueous detergent solution is used. Furthermore, the angle of the nozzles and the number of nozzles can be appropriately selected to agitate the laundry and the washing liquid by the optimum high-speed water jet, and to select the conditions under which the laundry is evenly washed.

In particular, the laundry holding device includes an endless mesh-shaped or grid-shaped lower belt that holds the laundry and has a large number of gaps, and an endless mesh that holds the laundry carried by the lower belt from above. and an upper belt having a number of gaps, such as a shape or a grid shape, and this configuration provides the following effects. (1) The laundry is sandwiched between the lower belt and the upper belt, the lower belt and the upper belt are moved to transport the laundry between the nozzles, and the laundry is washed. After washing, the lower belt and the upper belt and carry out the laundry. (2) It becomes possible to automate the washing process. (3) By forming the lower belt and the upper belt as annular belt conveyors, washing can be performed continuously, and the workability in washing the laundry is improved. (4) Since the laundry is sandwiched between the belts, the laundry does not escape even with a strong water stream from the nozzle, and the washing liquid is strongly agitated to prevent uneven washing, and the washing can be performed under various conditions. is also possible.

It is preferable that washing, rinsing, and dehydration are performed continuously in a washing machine in order to improve the efficiency of washing and to save time and effort. Washing is performed by a washing tank in which washing liquid is stored and which is equipped with an underwater jet nozzle that impinges a high-speed water jet with cavitation on the laundry submerged in the liquid, and the rinsing water discharged from the nozzle at a low pressure, such as that of tap water, in the air. A tank for receiving the washing liquid contained in the laundry, and the laundry is carried into the washing tank and carried out from the washing tank and further carried into the tank for receiving the washing liquid contained in the laundry with the rinsing water. It is characterized by comprising a laundry conveying device for carrying out the washing liquid contained in the laundry with the rinsing water from the washing tank. After washing, the laundry transporting device carries the laundry into a tank that receives the washing liquid contained in the laundry with the rinsing water, and the laundry is rinsed, and the washing process and the rinsing process are continuously performed. becomes possible.

Here, the endless belt as the laundry conveying means is composed of an attached endless conveying belt. When an endless belt is used, the laundry is conveyed into and out of the washing tank or the rinsing liquid receiving tank while being sandwiched between the lower belt and the upper belt. At this time, it is preferable that the laundry is dehydrated by a pressing roller, an air blow, or the like when or after the laundry is carried out from the washing tank and/or the rinsing liquid receiving tank. This is because excess cleaning liquid or rinsing water is squeezed out, the cleaning liquid or rinsing water permeates the laundry, and it is suppressed that the cleaning liquid or rinsing water is transported to the next step together with the laundry. In addition, the washing process, rinsing process, and dehydration process can be performed continuously, and automation is also possible. Further, in order to continuously circulate the washing liquid and the rinsing liquid, an intermediate tank is provided between the washing tank and/or the tank receiving the rinsing liquid to prevent the mixing of the washing liquid and the rinsing liquid in the washing tank. It is preferable to provide Further, when the laundry needs to be subjected to a softening process or the like, a plurality of dewatering processes can be provided, and the softening process or the like can be performed between the processes.

The washing tank, the rinsing tank, and the dehydrating layer are configured so that the laundry is conveyed while being sandwiched between one upper belt and one lower belt. It is preferable that the belt is integrated with the lower belt so that the object to be cleaned is conveyed while being sandwiched between one upper belt and one lower belt from the washing tank to the rinsing tank and further to the dewatering layer. This is because the laundry can be continuously transported between the washing process, the rinsing process, and the spin-drying process, and the transport mechanism can be easily constructed.

An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a cross-sectional side view of a main part of a washing machine according to an embodiment of the present invention. In FIG. 1, 1 is a washing machine, 2 is a washing tank made of metal such as stainless steel or made of synthetic resin such as FRP for storing washing liquid such as water, detergent aqueous solution, liquid detergent, 3 is an intermediate tank, 4 is a dewatering layer, 5a is a drain pipe opened at the bottom of the washing tank 2, 5b is a drain pipe opened at the bottom of the intermediate tank 3, 5c is a drain pipe opened at the bottom of the dewatering layer 4, 24, 24 ' and 24'' are gate valves for sealing the drain pipes 5a, 5b and 5c, 6 and 7 are side walls on the carry-in side of the cleaning tank 2 and side walls between the carry-out side and the intermediate tank 3, and 8 is the side wall 6 on the carry-in side. 9 is a carry-out roller 9' which is rotatably supported inside the side wall 7' between the carry-out side of the cleaning tank 2 on the carry-out side and the intermediate tank 3; is a carry-out roller rotatably supported inside the side wall 7' between the carry-out side of the intermediate tank 3 on the carry-out side and the dewatering tank 4; A loading side submerged roller 11 is rotatably supported and is disposed so that at least the lower part is submerged in the cleaning liquid stored in the cleaning tank 2. A carrying-out side submerging roller 12 is rotatably supported on a support shaft fixed to a frame parallel to the carrying-in side submerging roller 10, and 12 is fixed to the frame above the carrying-in roller 8 in parallel with the carrying-in roller 8. end rollers that are rotatably supported on a support shaft that is mounted on the support shaft.

Reference numeral 13 is formed of an endless mesh or metal wire extending from the end roller 12 to the upper part of the carry-in roller 8, the lower part of the carry-in side submerged roller 10 and the carry-out side submerged roller 11, and the upper part of the carry-out roller 9. It is a conveyor belt consisting of a grid belt. The conveying belt 13 is stretched over rollers of support shafts provided on a frame along a route from the carry-out roller 9 to the end rollers 12 by detouring under the cleaning tank 2 . Reference numeral 14 denotes a pressure belt feed roller rotatably supported on a support shaft provided on a frame above the carry-in roller 8; The roller support shafts are rotatably supported in contact with the carry-out rollers 9, 9' and 9'' by the support shafts provided swingably or fixedly on the pedestal, and the roller support shafts are urged toward the carry-out roller 9 side. The dewatering rollers 15a, 15b, 15c are arranged in a pressing spring chamber fixed to the frame, and press the supporting shafts of the dewatering rollers 15, 15', 15'' toward the supporting shafts of the carry-out rollers 9a, 9b, 9c. It is a pressure spring that biases. Reference numeral 16 denotes a conveying belt 13 which is stretched from the pressing belt operation roller 14 to the lower portions of the carry-in side submerged roller 10 and the carry-out side submerged roller 11, and the upper portions of the carry-out rollers 9, 9' and 9'' in the same manner as the conveying belt 13. The pressing belt is an endless belt made of the same material as the . The pressure belt 16 is suspended along a path that goes around above the carry-out rollers 15, 15', 15'' and reaches the pressure belt introduction roller 14. As shown in FIG. Reference numeral 17 denotes laundry that is placed on the upper surface of the conveying belt 13 and conveyed while being sandwiched between the conveying belt 13 and the pressing belt 16 by the rotation of the conveying belt 13 and the pressing belt 16 .

In the present embodiment, a plurality of underwater jet nozzles 18 for colliding high-speed water jets accompanied by cavitation with the laundry 17 in the liquid are arranged at right angles to the advancing direction of the conveying belt 13 and the pressing belt 16 and conveyed. Although the laundry 17 between the belt 13 and the pressing belt 16 is sprayed from both above and below to be washed, only one of them may be used depending on the contents of the laundry.

Filters 21 → 62, 62', 62" for filtering dirt mixed in water tanks 55, 56', 56 are provided with filters capable of collecting dirt having a particle size larger than the hole diameter of the nozzle 18. Although the capacity of the circulation pump 61 varies depending on the type and size of the washing machine 1 and the diameter and number of the nozzles 18, usually the discharge pressure under the condition that the cavitation jet is generated is several Mp to ten minutes. It is preferable to have a flow rate of 0.5 liters/minute to 400 liters/minute at several Mp.The diameter of the ejection hole of the nozzle 18 is 0.3 to 2.0 mm depending on the number and shape of the nozzles to be used. The rinsing water circulation pump 61' has a flow rate of 0.5 liters/minute to 400 liters/minute driven by the circulation pump 61, and the water pressure is as low as tap water, 0.1 to 0.5 Mp. Anything you can do is preferred.

In addition, the water tank 55 is provided with a water supply port 58 having a float-type water level gauge or the like so that the water tank 55, 56', 56 maintains a predetermined water level with the liquid surface of the washing tank 2. In order to keep the water levels of 55, 56' and 56 the same, check valves 59 and 59' are provided.

The water tank 56 is used as washing water, and there are cases where only cold water or hot water is used, and there are cases where alkaline agents and detergents are used, and there are various conditions. When it is desired to cleanly remove dirt from the laundry 17, or when it is desired to finish washing quickly, the output of the circulation pump 61a interlocked with the motor 61 can be increased to adjust the discharge pressure and flow rate. The water storage liquid 56 is equipped with a heater 25 to heat it. The water tank 55 is used as rinsing water, and usually cold water or warm water stored in tap water is used. The water storage liquid 56' is used to store the mixed liquid of washing water and rinsing water that flowed out from the drain pipe 5b of the intermediate tank 2 and was mixed during the dehydration or rinsing process. Further, each step is appropriately omitted or repeated depending on the degree of dirtiness of the laundry 17, and the control panel 63 and the operation panel 40 are provided with such functions.

A case where the washing machine 1 according to the present invention is used for laundry 17 such as clothes will be described below. 2 is a front view of the washing machine 1 of the embodiment, FIG. 3 is a rear view of the washing machine 1 of the embodiment, and FIG. 4 is a side view of the washing machine 1 of the embodiment. 2 to 4, 1 is a washing machine, 32 is a housing of the washing machine 1, 33 is a plurality of viewing windows provided on the side of the housing 32 for observing the inside from the outside of the housing 32, and 35 is a washing machine. A counter 36 is placed on the front of the upper surface of the housing 32 to count the number of laundry items fed into the washing machine 1, and 36 is a washing machine for placing the items to be washed and feeding them into the housing 32. 37 is an inlet opening at the bottom of the vertical wall surface on the front end side of the upper surface of the feeding table 36 at the front of the housing 32; 38 is the rear end of the washing machine 1; 39 is a laundry basket installed below the delivery port 38 at the rear end of the housing 32; 40 is the rear of the housing 32 for the user to operate the washing machine 1; It is a control panel arranged on the end side. The conveyor belt 13 is suspended from the upper surface of the feed table 36 to the feed port 38 via the lower surface of the feed port 37 and the inside of the housing 32 . The object to be cleaned placed on the conveying belt 13 on the upper surface of the feeding table 36 was fed into the housing 32 through the feeding port 37 by the circulation of the conveying belt 13, where it was washed, rinsed, and dehydrated. After that, it is delivered out of the housing 32 through the delivery port 38 . The laundry delivered from the delivery port 38 drops from the delivery port 38 into the laundry basket 39 .

1, 2 is a washing tank for washing, 2' is an intermediate tank, 41 is a dewatering tank, 5a, 5b, 5c are drainage pipes, 6, 7, 7' are side walls, 8 is a carrying roller, 9 , 9′ is a carry-out roller, 10 is a submerged roller on the carry-in side, 11 is a submerged roller on the carry-out side, 12 is an end roller, 13 is a conveying belt, 14 is a pressure belt operation roller, and 15, 15′ and 15″ are dehydrator. Rollers 15a, 15a', 15'' are pressure springs, 16 is a pressure belt, 32 is a housing, 35 is a counting counter, 36 is a feed table, 36a is a vertical wall surface, 37 is a feed port, and 38 is a delivery port. , 39 is a basket for receiving laundry, and 13 is a conveyor belt. In this embodiment, the pressure belt introduction roller 14 and the carry-in roller 8 are arranged above and below the feed port 37 , and the end roller 12 is arranged below the upper surface of the feed table 36 . Inside the housing 32, the washing tank 2, the intermediate tank 3 for the mixture of the washing liquid and the rinsing liquid, and the dewatering tank 4 for receiving the rinsing liquid and the dehydrating liquid are arranged horizontally from the inlet 37 to the outlet 38 in this order. The washing tank 2, the intermediate tank 3 for receiving the mixed liquid of the washing liquid and the rinsing liquid, and the dewatering tank 4 for receiving the rinsing liquid and the dewatering liquid are separated by side walls 7 and 7'. Further, in the cleaning tank 2, the water level switch 19, which is operated by detecting the water level of the cleaning liquid connected to the water supply pipe 60, always reaches a water level at which the underwater injection nozzle 18, which impinges a high-speed water jet, is immersed in the water. , and excess washing liquid is stored in a water tank 56. - 特許庁In the intermediate tank 3, a mixture of washing liquid and rinsing water squeezed out by dehydration serves as a receiving tray, and in the dehydration tank 4, rinsing water squeezed out by dehydration serves as a receiving tray, and finally, each is a storage tank 56'. 55 is stored. Outlet rollers 42 and 43 are rotatably supported on the lower and upper portions of the delivery port 38 and driven by a motor. A freely pivoted lower roller. The conveying belt 13 passes from the end roller 12 to the upper part of the carry-in roller 8, the lower part of the carry-in side submerged roller 10, the lower part of the carry-out side submerged roller 11, and the upper part of the carry-out roller 9, and is turned back at the exit roller 42, and the lower roller 44 , the upper portion of the lower roller 45, and the lower portion of the lower roller 46, and are suspended over the end roller 12. The exit roller 43 is spaced above the exit roller 42 and guides the pressure belt 16 upward with a gradient away from the conveying belt 13 . 47, 48, 49 and 50 are located in the washing tank 2 above the exit roller 43, above the dewatering roller 15'', above the dewatering roller 15', above the dewatering roller 15 and above the pressure belt entry roller 14, respectively. The pressure belt 16 extends from the pressure belt introduction roller 14 to the lower part of the submerged roller 10 on the carry-in side, the lower part of the submerged roller 11 on the carry-out side, and the upper part of the carry-out roller 9. It is folded back at the exit roller 43 via an exit roller 43 and suspended over the pressure belt drive roller 14 via the upper part of the upper roller 47, the upper part of the upper roller 48, the upper part of the upper roller 49, and the upper part of the upper roller 50.53 , 54 are transmission belts, 51 and 52 are motors for rotating the pulleys of the transmission belts 53 and 54, and 56, 56' and 55 are disposed below the washing tank 2, the intermediate tank 3 and the dewatering tank 4, respectively. A water tank for receiving and storing the liquid from the tank 2, the intermediate tank 2', and the dewatering tank 2'', 57 a separating plate for separating the water tank 55 and the water tank 56', and 57' the water tank 56 and the water tank 56. 58 is a water supply port provided with a water level gauge such as a float type for supplying makeup water to the water tank 55; 59, 59' are provided in the water tank 56 Check valves 60 and 60' for supplying make-up water from the water tanks 55 and 56' to the water tank 56 when the water level of water drops below the water level of the water tanks 55 and 56', and 60 and 60' are respectively the water tank 56 and the nozzle for underwater injection. 18, water supply pipes 61, 61' are arranged in water supply pipes 60, 60', respectively, and are arranged in communication with the water tank 55 and the rinsing nozzles 22, 22' to supply water, and water is injected from the water tanks 55, 56 Water supply motors with circulating pumps 61a, 61a' for supplying makeup water to the washing nozzle 18 and rinsing nozzles 22, 22', and water supply motors 62, 62', 62'' are installed in the middle of the drain pipes 5a, 5b, 5c, respectively. A filter 63 provided is a control panel for controlling the operation of the washing machine 1 . The cleaning liquid in the cleaning tank 2 can be returned to the water tank 56 through the drain pipe 5a, and the cleaning water returned to the water tank 56 can be reused. Similarly, the rinse water in the dewatering layer 4 can be returned to the water tank 55 through the drain pipe 5c, and the rinse water returned to the water tank 55 can be reused. Further, the mixed liquid of the washing liquid squeezed out by dehydration and the rinsing water in the intermediate tank 3 can be returned to the water tank 56' by the drain pipe 5b. It can be reused for adjusting the water level of the tank 56 . Further, one or more of the lower rollers 44, 45, 46 and the upper rollers 47, 48, 49, 50 are adjusted in tension by elastic members such as springs.

The operation of the washing machine 1 of this embodiment configured as described above will be described below. The user first places the laundry 17 such as clothes on the conveyor belt 13 on the top surface of the feed table 36 . In this state, the operation panel 40 or the control panel 63 is operated to rotate the conveying belt 13 and the pressing belt 16, and the laundry 17 between the conveying belt 13 and the pressing belt 16 is submerged on the carry-in side. It is conveyed between the roller and the submerged roller on the carry-out side. Next, the circulation pump 61a connected to the motor 61 is started, and the submersible injection nozzle 18, which is installed between the submerged rollers on the carry-in side and the submerged rollers on the carry-out side and causes high-speed water jets with cavitation to collide, presses the conveying belt 13. The laundry 17 placed between the belts 16 is jetted from both above and below to wash the laundry 17 conveyed while being sandwiched by the belts. While rotating the conveying belt 13 and the pressing belt 16 at a constant speed, the object 17 to be washed is continuously moved, and the entire laundry 17 is washed in the same manner. After the washing process is completed, the laundry 17 is conveyed to the rinsing process by being pressed by the dehydrating roller 15 and the discharge roller 9 while being sandwiched between the conveying belt 13 and the pressing belt 16 to dehydrate the washing water. Cold or warm tap water is usually used as rinsing water. Next, while rotating the conveying belt 13 and the pressing belt 16 at a constant speed, the object 17 to be cleaned is continuously moved, and the circulation pump 61'a connected to the motor 61' is activated to rinse the object 17 to be cleaned. and dewatered by being pressed by the dewatering rollers 15' and 15'' and the carry-out rollers 9' and 9''. In the above operation, a batch process was described in which the conveying belt 13 and the pressing belt 16 are temporarily stopped in the washing process and the rinsing process. Of course, it is also possible to perform a continuous treatment in which washing, rinsing and dehydration are performed. In the washing process, the washing liquid in the washing tank 2 increases or decreases with the object 17 to be washed. 2, and the cleaning liquid in the cleaning tank 2 can be returned to the water storage tank 56 through the drain pipe 5a.

1 washing machine 2 washing tank 3 intermediate tank 4 dewatering tank 5a, 5b, 5c drain pipe 6, 7, 7' side wall 8 carry-in roller 9, 9', 9" carry-out roller 10 carry-in side submerged roller 11 carry-out side submerged roller 12 end Part roller 13 Conveyor belt 14 Pressure belt operation rollers 15, 15', 15'' Dewatering rollers 15a, 15a', 15a'' Pressure spring 16 Pressure belt 17 Laundry 18 Underwater injection nozzle 19 Water level switch 20 Drain port 21, 21' , 21 "drain valves 22, 22' gate valves 23, 23' rinsing nozzles 24, 24', 24" gate valves
25 heater 26 support base 31 sluice valve 32 housing 33 viewing window 35 counting counter 36 feed table 36a standing wall surface 37 feed port 38 feed port 39 laundry basket 40 operation panel 41, 41' check valves 42, 43 outlet roller 44, 45, 46 lower rollers 48, 49, 50 upper rollers 51, 52 motor
53, 54 transmission belt
55, 56, 56' Water tank 57, 57' Separation plate 58 Water supply port 59, 59' Check valve 60, 60' Water supply pipe 61, 61' Water supply motor 61a, 61a' Circulation pump 62, 62', 62" Filter 63 control panel

Claims (1)

The present invention consists of a washing tub containing washing liquid, and a washing liquid in the washing tub, in order to remove stains and agitate the laundry, the washing liquid is sprayed at high speed from a nozzle into the washing liquid. A laundry holding device for holding the laundry through which the cleaning liquid emitted from the nozzle can pass through, and a device for circulating the cleaning liquid. A washing machine comprising a laundry conveying device for carrying articles into a washing tub, carrying articles out of the washing vessel, and further carrying them into and out of the next process.

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