washing machine

Abstract

To efficiently separate washing water and garbage for efficiently collecting garbage.SOLUTION: A washing machine (A) comprises: a washing part (100) for injecting washing water to tableware to which garbage is adhered for washing the tableware; a garbage processing part (300) for separating the washing water and the garbage which are fallen after washing for collecting them; and a washing water feeding part (200) for storing the collected washing water and receiving feeding of new washing water for feeding the new washing water to the washing part for injection. The garbage processing part comprises a first processing mechanism (310) and a second processing mechanism (320). The first processing mechanism has: a sieve inclination plate (321) for receiving fallen washing water and garbage (D), and separating the washing water so that a part (W12) of the received washing water is returned to the washing water feeding part (200) and residual washing water (W11) transports the garbage to the second processing mechanism. The second processing mechanism comprises a garbage cage (321) for receiving the garbage and the residual washing water transported from the first processing mechanism, collecting the garbage and returning the residual washing water to the washing water feeding part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a washing machine for washing dishes, and in particular to a pre-wash wash. [Background technology]

[0002] In the kitchens of restaurants, employee cafeterias, etc., used dishes are lined up on racks designated for each type of dish and then placed in a dishwasher. Such dishwashers are already in practical use, and examples include those shown in Patent Document 1.

[0003] This dishwasher washes dishes stored in the wash chamber with wash water sprayed from the wash nozzle, and then rinses them with rinse water sprayed from the rinse nozzle. The wash water is maintained at a temperature of around 65°C to remove dirt from the dishes. The rinse water is maintained at a temperature of around 80-90°C to rinse and sterilize the dishes after washing, while also enhancing the drying effect. The wash water is stored in the wash tank and is appropriately sucked in by a pump and directed to the wash nozzle. The rinse water is stored in the rinse tank and is appropriately sucked in by a pump and directed to the rinse nozzle.

[0004] However, if used dishes are washed as they are, the dirt from the dishes, such as sauces and oily leftovers, will be carried into the washing machine, causing the following problems: 1) (Deterioration of cleaning solution) Due to oil and other contaminants, the cleaning solution deteriorates and its surface activity and emulsification functions stop working in a short time. 2) (Clogging) When using circulating cleaning water, food residue can adhere to the suction part of the circulation pump, causing clogging and preventing the circulation pump from functioning. To prevent these problems, pre-washing is necessary. For example, the current practice is to prepare a tank filled with hot water and soak the dishes in it to liquefy any leftover food, or to manually wash away sauce, oil, and leftover food from the dishes with a hand shower before putting them into the dishwasher. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-155667 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in recent years, due to the worsening labor shortage caused by the declining birthrate and other factors, it has become desirable to reduce manual work and mechanize it as much as possible, and if possible, automate it. For this reason, there has been a demand for a washing machine that can perform rough cleaning instead of this pre-treatment. The main issue with rough washing is the disposal of leftover food. It is necessary to efficiently separate the washing water from the leftover food and collect the leftover food efficiently. What is also desired is a system that has as simple a structure as possible, is easy to use, compact, and low cost.

[0007] The present invention has been made in consideration of such new demands, and aims to provide a washer that can efficiently perform rough washing by utilizing the flow of circulating washing water and the weight of leftover food to effectively discharge leftover food without using mechanical force. [Means for solving the problem]

[0008] To solve this problem, the machine is equipped with a mechanism that effectively separates leftover food and also provides a leftover food basket for removing leftover food and discharging it outside the machine. When used as a pre-cleaner, a water inlet is provided at the bottom of the cleaning tank so that the drainage water from this cleaning machine can be used, and an overflow pipe is used to maintain a constant water head, so that the drainage outlet can be located at any position in the cleaning tank. The following will explain each step in turn.

[0009] (Claim 1) The washing machine of the present invention is a washing machine comprising a washing section that sprays washing water onto dishes with food residue attached to wash them, a food residue processing section that separates the washing water that falls after washing and the food residue and collects them separately, and a washing water supply section that collects the collected washing water and receives a supply of new washing water and sends it to the washing section for spraying.The food residue processing section comprises a first processing mechanism and a second processing mechanism, and the first processing mechanism receives the falling washing water and food residue, and has an inclined strainer plate that returns some of the received washing water to the washing water supply section and separates the washing water so that the remaining washing water can be carried to the second processing mechanism, and the second processing mechanism comprises a food residue basket that receives the food residue and the remaining washing water carried from the first processing mechanism, and processes the remaining washing water by collecting the food residue and returning the remaining washing water to the washing water supply section.

[0010] With this configuration, the amount of used washing water flowing along the inclined plate surface in the first processing mechanism can be adjusted, and the leftover food can be effectively collected and transported to the second processing mechanism using the weight of the leftover food and the adjusted flow of washing water, and the second processing mechanism can effectively collect the leftover food and easily discharge it outside the machine. In this way, by giving the first processing mechanism the function of collecting and transporting leftover food and the second processing mechanism the function of recovering leftover food and combining these in sequence, a washer that can efficiently recover leftover food can be provided.

[0011] (Claim 2) In the washing machine, the washing section comprises a washing chamber and washing nozzles that spray washing water from multiple directions onto dishes stored in the washing chamber, the strainer inclined plate is a removable plate surface that is arranged at an incline at the bottom of the washing chamber and has multiple through holes for adjusting the amount of washing water that is carried to the food waste basket along with the received washing water, the food waste basket is connected to the lowest position of the inclined strainer plate and has a draining section on its bottom surface made of a mesh grid to collect food waste and allow the washing water to pass through, and the washing water supply section preferably comprises a washing water tank that is arranged at the bottom of the strainer inclined plate and collects the washing water that falls through the plate surface and the washing water that falls through the draining section, a washing water pump that sends the washing water stored in the washing water tank to the washing nozzles for spraying, a supply port for replenishing new washing water, and a drain port for draining the washing water stored in the washing water tank.

[0012] This configuration provides a dishwasher that performs a rough wash that is easy to use and efficiently collects leftovers. If a washing device that performs a main wash is used in the subsequent process, the drained wash water from that device can be received through the refill port. In this case, the washing water from the washing device that performs the main wash, which already contains detergent, can be used, eliminating the need to add detergent. Furthermore, the heat from the drained water can be utilized, reducing the load on reheating. Furthermore, since the temperature of washed dishes is expected to rise, the heating load on the washing device that performs the main wash in the subsequent process can be reduced.

[0013] (Claim 3) It is preferable that the washing machine further comprises a dish rack transport mechanism for transporting dish racks for carrying dishes into and out of the washing chamber, an inlet for transporting the dish racks and an outlet for transporting the dish racks, and a washing water shielding mechanism for preventing washing water from splashing out of the inlet and the outlet.

[0014] This configuration provides a pre-washing machine that can load dishes onto the dish rack and create a washing system that automates loading and unloading. The advantages of being able to receive drained wash water from the refill port of this washing machine are as described above.

[0015] (Claim 4) The present invention is a washing system in which the above-mentioned washing machine is used as a first washing machine to perform a preliminary wash and another washing machine is used as a second washing machine to perform a main wash, and the first washing machine receives drainage water from the second washing machine as washing water through the refill port.

[0016] This configuration allows the drainage water from the second washer, which performs the main wash, to be received through the refill port, so the wash water from the second washer can be used and there is no need to add new detergent. Furthermore, the heat from the drainage water from the second washer can be used, which eliminates the need for heating. This is expected to raise the temperature of the dishes washed in the first washer, reducing the load of heating the wash water in the second washer, and thus saving energy.

[0017] (Claim 5) In this case, it is preferable to further provide a feed table in front of the first cleaning machine, a feed table between the first cleaning machine and the second cleaning machine, and a clean table behind the second cleaning machine. This configuration makes it possible to automatically transport dish racks containing dishes.

[0018] (Claim 6) In this case, it is preferable to further provide a soiled table in front of the feed table.

[0019] This configuration enables automatic transport and automatic washing of dish racks from loading to unloading, which in turn allows the system to be fully automated by kitchen staff, eliminating the need for dedicated dishwashing staff.

[0020] (Claim 7) The cleaning system is preferably a cleaning system in which the first cleaning machine and the second cleaning machine are integrated together.

[0021] This configuration allows for a more compact cleaning system. [Effects of the Invention]

[0022] According to the present invention, a cleaning machine capable of efficiently performing rough cleaning can be provided. In addition, a cleaning system for automatic transport and automatic cleaning can be provided in combination with another cleaning machine that performs main cleaning. [Brief explanation of the drawings]

[0023] [Figure 1] 2 is an explanatory diagram illustrating each part inside the cleaning machine A according to the embodiment of the present invention. FIG. [Figure 2] FIG. 1 is a perspective explanatory view showing an embodiment of the present example. [Figure 3] FIG. 1 is an explanatory diagram of a washing system in which the present example is used as a pre-washing machine. DETAILED DESCRIPTION OF THE INVENTION

[0024] The embodiment of this example will be described below with reference to the drawings. (1) Overview As shown in Figure 1, the washer A in this example is equipped with a washing section 100 that sprays washing water onto dishes with food residue on them to wash them, a food residue processing section 300 that separates the washing water that falls after washing from the food residue and collects them separately, and a washing water supply section 200 that stores the collected washing water and receives a supply of new washing water and sends it to the washing section for spraying. Its features include a food waste processing unit 300 equipped with a first processing mechanism 310 and a second processing mechanism 320, the first processing mechanism 310 receiving the falling washing water and food waste D, and a strainer inclined plate 311 which divides the washing water so that a portion W12 of the received washing water is returned to the washing water supply unit 200 while the remaining washing water W11 is carried to the second processing mechanism 320, and the second processing mechanism 320 receiving the food waste D and the remaining washing water W11 carried from the first processing mechanism, recovering the food waste D and returning the remaining washing water W11 to the washing water supply unit 200.

[0025] (2)Each part (Housing) 1 and 2, the washer A of this embodiment is housed in a metal housing 10 supported by legs 11, and includes a washing section 100, a food residue disposal section 300 that separates and collects the washing water W and food residue D that fall after washing, and a washing water supply section 200 that stores the collected washing water and receives a supply of new washing water and sends it to the washing section for spraying. These sections are preferably made of stainless steel.

[0026] (Transport mechanism) In this example, dish rack 21 containing dishes P can be pulled by feed claws 22 and slid along conveyor rails 23. As shown in Figure 2, washing section 100 is provided with inlet 14 and outlet 15 for conveying dish rack 21, and is also provided with conveyor mechanism 20 for conveying dish rack 21. These are preferably made of stainless steel. The transport mechanism 20 is equipped with transport rails 23 on the front and rear sides of the housing 10, and a feed frame 25 that moves at a predetermined stroke in the direction of travel of the dish rack 21 to feed the rack claws 22. The feed claws 22 are provided at predetermined intervals on the feed frame 25, and as the feed frame 25 moves, the feed claws 22 hook onto the underside of the rack 21, transporting the dish rack 21 on the transport rail 23 one transport stroke at a time. The feed claws 22 have a rotation mechanism that locks and does not rotate when transporting the dish rack 21, and rotates and moves away even if they come into contact with the dish rack 21 when returning in the opposite direction to the transport direction. The feed frame 25 is connected to the feed lever 24, and moves in accordance with the forward and backward movement of the feed lever 24.

[0027] (Washing water shielding mechanism) In addition, the carry-in entrance 14 and the carry-out exit 15 are provided with a wash water shielding mechanism 30. The wash water shielding mechanism 30 is a strip-shaped drainer curtain 30 made of soft resin, and during washing, the strips hang down together to shield the carry-in entrance 14 and the carry-out exit 15 so that the wash water W does not splash outside the machine, and when the dish rack 21 is carried in or out, the strips break and flex where the dish rack 21 comes into contact, allowing the dish rack 21 to pass through.

[0028] (Cleaning section) The washing unit 100 is disposed at the top of the housing 10 and is equipped with a washing chamber 110 and multiple washing nozzles 111, 112. An upper washing nozzle 111 is disposed at the top of the washing chamber 110, and a lower washing nozzle 112 is disposed at the bottom. When washing, a dish rack 21 containing dishes P is placed inside the washing chamber 110, and washing water is sprayed onto the dishes P from multiple directions. These are preferably made of stainless steel.

[0029] Straightening plates 111a and 112a are provided near the washing nozzles 111 and 112, respectively. After being sprayed, the washing water W hits the straightening plates and is diffused over a wide angle. This is to minimize blind spots where the washing water W does not hit the dishes P. Cleaning water W is pressure-fed from a cleaning water supply unit 200 to each of the cleaning nozzles 111 and 112 via a cleaning water delivery pipe 212 .

[0030] (Operation panel) An operation panel 12 is disposed on the front side of the housing 10. The operation panel 12 serves as a user interface for the washer A of this example, including a power button, a wash start button, a wash water temperature display, and an alarm display. As shown in FIG. 2, an emergency stop switch 13 is provided on the right side of the operation panel 12.

[0031] (Waste food processing section) The food waste processing unit 300 is disposed below the washing chamber 110 and includes a first processing mechanism 310 and a second processing mechanism 320.

[0032] (First processing mechanism) The first processing mechanism 310 is detachably provided with a strainer inclined plate 311 which is a plate surface that receives the washing water used for washing in the washing chamber 110 and that drops down, and the leftover food D separated from the tableware P by the washing water. In this example, the strainer inclined plate 311 is a punched metal plate having a plurality of through holes 311a, and is preferably made of stainless steel. The strainer inclined plate 311 is detachably disposed at the bottom of the washing chamber 110. The through-holes 311a are used to adjust the amount of washing water W11 that is received and carried to the food residue basket together with the food residue, and serve to return a portion W12 of the washing water received on the plate surface to the washing water supply section 200 described below through the through-holes 311a, and also serve to carry the food residue D received on the plate surface together with the remaining washing water W11 to the second processing mechanism 320 described below.

[0033] The strainer inclined plate 311 is installed facing the second processing mechanism 320 (described later) at an inclination of approximately 5 degrees from the horizontal. The inclination angle is not limited to 5 degrees, and is preferably between 2 and 20 degrees. It can also be made even larger. The greater the inclination, the easier it is for food scraps D to move on the strainer inclined plate 311 under their own weight, but on the other hand, a larger inclination increases the vertical dimension of the washer, resulting in reduced space-saving capabilities.

[0034] In this example, dish rack 21 can be slid using conveying mechanism 20, so the height of the conveying line is the same as that of the surrounding installed equipment. Since dish rack 21 is slid along the conveying line, it is almost on the underside of dish rack 21, but since leftover food D flows along strainer inclined plate 311 under its own weight together with the used washing water that has fallen into it, a larger inclination angle makes it more slippery. However, due to the constraint that strainer inclined plate 311 must be located below the conveying line, there is a demand for an inclination angle that is as small as possible.

[0035] In this case, it is advisable to adjust the angle of inclination by adjusting the density and diameter of the aforementioned through-holes. The density and diameter of the through-holes through which the washing water passes can be adjusted depending on the angle of inclination, provided that food scraps can be collected. In this example, the inclination is set to 5 degrees, and approximately half of the washing water passes through the first processing mechanism. If the angle of inclination is increased, less washing water may pass through, and if the angle of inclination is decreased, more washing water may pass through.

[0036] 2, the strainer tilt plate 311 is not fixed but is placed on a support 312 provided on the housing 10, so that it can be freely attached and detached. In this example, a handle 313 is provided on the strainer tilt plate 311 to allow for easy replacement.

[0037] (Second processing mechanism) The second processing mechanism 320 is disposed at the lowest end of the inclined strainer plate 311 of the first processing mechanism 310. This is to effectively collect leftover food D. The second processing mechanism 320 is equipped with a food waste basket 321 that receives the food waste D and the remaining washing water W11 carried from the first processing mechanism 310, and a box 322 with a lid 323 that contains the food waste basket 321. The box 322 is connected to the lowest end of the strainer inclined plate 311 via a notch in the housing 10 and is arranged outside the housing 10. This is to make it easier to dispose of the food waste D.

[0038] The food residue basket 321 is a metal basket-shaped filtering device that collects food residue D and returns the remaining washing water W11 to the washing water supply unit 200, and has a draining section 321a on its bottom made of punched metal with multiple through holes. The draining section 321a has the role of trapping food residue D that flows in with the washing water W11 and allowing the washing water to pass through and return it to the washing water tank 210. Since the food waste basket 321 is stored in the box 322 outside the housing 10 in this manner, the food waste D collected in the food waste basket 321 can be easily removed and discarded. Furthermore, the washing water W11 carried together with the leftover food D passes from a water outlet 322a provided on the bottom surface of the box 322 through a recovered water conduit 330 and is recovered in the washing water supply unit 200, which will be described later.

[0039] (Cleaning water supply unit) In order to circulate and reuse the washing water W, the washing water supply section 200 collects and stores the used washing water separated in the food waste treatment section 300, sends the stored washing water W to the washing section 100, and receives a supply of new washing water. For this purpose, the washing water supply section 200 is equipped with a washing water tank 210, a washing water pump 220, a washing water recovery port 242, a supply port 241, and a drain port 243. The cleaning water tank 210 is arranged below the strainer inclined plate 311 and collects the cleaning water W12 that falls through the plate surface and the cleaning water W22 that falls through the draining section 321a of the food waste basket 321, and the cleaning water pump 220 sends the cleaning water W stored in this cleaning water tank 210 to the cleaning nozzles 111 and 112 for spraying.

[0040] (cleaning water tank) The washing water tank 210 is a metal container that stores washing water W, and is disposed below the strainer inclined plate 311, and is disposed at the lowest part of the housing 10. The washing water tank 210 collects washing water W12 that has passed through the strainer inclined plate 311, and also collects washing water W22 that has passed through the food waste basket 320. (Replenishing cleaning water) Washer A of this example circulates wash water, replenishing new wash water and draining wash water little by little from overflow pipe 245. New wash water is refilled through refill port 241 of wash water refill pipe 211. Refill port 241 is provided on the bottom surface of wash water tank 210. When refilling using drainage water from another washer, it is sufficient to refill washer A of this example from a position higher than the upper limit height S of the liquid level in wash water tank 210 of washer A of this example. In this way, even if the liquid level of wash water is at any position in wash water tank 210, it is possible to refill wash water to wash water tank 210 without backflow. The cleaning water tank 210 may be provided with a heater (not shown) that heats the cleaning water to maintain the temperature of the cleaning water at an appropriate level in order to improve the cleaning effect.

[0041] (Overflow pipe: drainage) To ensure a constant amount of flush water W and to prevent flush water tank 210 from overflowing, overflow pipe 245 is provided. Overflow pipe 245 is a tubular drain pipe that is open at both ends, with its lower end connected to the bottom of flush water tank 210 and its upper end set so that it is equal to the upper limit height S of the tank's liquid level. When the tank's liquid level exceeds drain outlet 245a, which is the opening at the upper end, the excess flush water passes through the inside of overflow pipe 245 and is discharged outside the tank from the lower end. For this reason, overflow pipe 245 determines the upper limit height S of the liquid level in flush water tank 210. A drain outlet 243 is provided on the bottom of the cleaning tank 210 to drain cleaning water stored in the cleaning water tank 210 for maintenance purposes, and the stored cleaning water can be discharged outside the tank via a discharge valve V. In this example, the drain is combined with the drainage from the overflow pipe 245 and discharged.

[0042] (Cleaning water supply pipe: water supply) Flush water tank 210 has water supply port 215a for supplying flush water when it is empty, and this water supply port 215a is designed to supply water from a position sufficiently higher than the upper limit height S of the liquid level in tank 210. Therefore, even if the flush water level is at any position in flush water tank 210, flush water can be supplied to flush water tank 210 without backflow. (Recovered water pipe: Recovered water) The wash water W22 that has passed through the leftover food basket 320 passes through a recovered water conduit 330 and is returned to the wash water tank 210 from a recovered water supply port 242 provided at the bottom of the wash water tank 210.

[0043] (Water supply: pump) When washing tableware P, the washing water W stored in the washing water tank 210 is pressure-fed to the washing nozzles 111, 112 provided in the washing chamber 110 via the washing water delivery pipe 212 using the washing water pump 220, which is a washing water delivery means. Wash water W sucked in through intake port 213 of strainer 214 provided on the bottom surface of wash water tank 210 is sent out to wash water delivery pipe 212 by pump 220. Wash water delivery pipe 212 extends further into washing chamber 110 and is connected to upper nozzle 111 and lower nozzle 112 inside washing chamber 110. Wash water W pressure-fed by pump 220 is sprayed from these nozzles towards tableware P contained in washing chamber 110, thereby washing the tableware. The inlet 213 of the strainer 214 is made of punched metal to prevent large food scraps from flowing in. Inside the strainer 214, a strainer (not shown) made of finer punched metal or mesh is provided, which has the function of filtering to prevent the washing water delivery pipe 212 and washing nozzles 111, 112 from clogging with food scraps.

[0044] (3) Usage example The washer A of this example can wash the tableware P stored in the washing chamber 110 by supplying washing water W and operating the pump 220. The washer A of this example is preferably used as a pre-washing washer for rough washing before the main washing, but can also be used alone. In either case, when first used, water is supplied until it reaches a predetermined water level (for example, full water). Then, dishes P are placed in the washing chamber 110. At this time, a dish rack 21 is used, and the dish rack 21 with the dishes P arranged thereon is placed in the washing chamber 110. Next, the pump 220 is operated to spray washing water W to wash the dishes P in the washing chamber 110. When the predetermined washing is completed (for example, after a certain period of time has passed), the pump 220 is stopped, the dish rack 21 is removed from the washer A, and the washed dishes P are collected.

[0045] (4) Cleaning system The washer A of this example can also automatically perform the procedures described in the above-mentioned usage example. For example, by providing a soiled table or clean table with a sink before and after the washer A of this example, the dish rack 21 can be transported and washed by the conveying mechanism of the washer A of this example.

[0046] Furthermore, as a further development, the washer A of this example and a main washer that subsequently performs the main washing can be arranged in series to form a washing system that performs preliminary washing and main washing. 3 shows the case where the cleaning machine A of this example is used in such a cleaning system SJ2. This cleaning system SJ2 includes as its elements a soiled table T1, a feed table T2, the cleaning machine A of this example, an outgoing table T3, a main cleaning machine B, and a clean table T4.

[0047] (Soiled table) The soiled table T1 is the first table installed on the entry side of this washing system SJ2, and is a table on which the washing rack 21s containing the dishes Ps before washing is temporarily placed. This table may also have a sink. The main material is stainless steel, taking into consideration sanitary requirements for the purpose of dishwashing. A user (not shown) stores dishes Ps to be washed in a washing rack 21s and places them on the soiled table 21. The dishes Ps may be collected completely unwashed, but this does not preclude light washing or discarding only large leftovers. The user moves the dish rack 21s placed on the soiled table T1 to the feed table T2, which will be described later. In this washing system SJ2, the height of the conveying line for the dish rack 21s is uniform in all elements, so the dish rack 21s can be conveyed essentially by moving it horizontally, preventing the entire system from becoming complicated, making it compact, and improving convenience.

[0048] (feed table) The feed table T2 is a transport table for feeding the dish racks 21s into the washer A of the washer system SJ2. The dish racks 21s are transported by the feed claws 22 of the transport device 20 contacting the dish racks 21 and moving a predetermined distance. The user sets the dish rack 21s so that the conveying device 20s can begin conveying. The conveying device 20s may be coupled to the conveying device 20 of the dish washer A so that they move in tandem. In this way, when the dish washer A finishes washing and the dish rack 21s containing the washed dishes is conveyed out, the dish rack 21s can be conveyed in tandem, enabling automatic conveyance by the system SJ2.

[0049] (Pre-wash) The washer A used in this system SJ2 is placed in front of the main washer B and performs a pre-wash of the dishes Ps. In other words, it is positioned as the first washer that performs a pre-wash to remove food residue from the dishes Ps so that the second washer, the main washer B, can wash the dishes efficiently. The dish rack 21s is carried into the dish washer A from the entrance side and transported to a predetermined position suitable for washing. The dishes Ps are then washed by the dish washer A, and the leftover dishes D are washed away. The leftover dishes D are then collected from the leftover dish basket 321a of the second processing mechanism 321.

[0050] In this case, the wash water for washer A can be supplied using wastewater from main washer B. As will be described later, main washer B uses hot water at about 75°C to enhance the cleaning effect, so using this hot water in washer A not only improves the cleaning effect of the pre-wash, but also contributes to energy conservation. When this pre-washing is completed, the dish rack 21s containing the dishes Ps is carried out from the outlet side of the dish washer A to the delivery table T3. The dish rack 21s may be transported in conjunction with the delivery table T3 by connecting it to the delivery table T3 with a push rod or the like. This allows the dish racks 21s to be transported in conjunction with the delivery table T3, and enables automatic transport and automatic pre-washing by the system SJ2.

[0051] (Outgoing table) The delivery table T3 of this system is placed between the washer A and the main washer B, and its purpose is to carry the dish racks 21s carried out from the washer A into the main washer B. In addition, in order to increase the flexibility of the kitchen layout of this system SJ2 and improve usability, the conveying line is bent 90 degrees in a fan shape. The dish rack transport mechanism 20 provided in the dish washer A may be disposed in any element.

[0052] (Main wash) The main washer B of this system SJ2 serves as a second washer to perform finishing washing of the dishes Ps. The dish racks 21s sent from the delivery table T3 are carried into the main washer B from its entry side. The main washer has two washing chambers arranged in series, and after a first wash is performed in the first washing chamber, the dish racks are transported to the second washing chamber for a second wash. In both washing chambers, rotary washing nozzles rotate to spray washing water from above and below the dish racks 21s to wash evenly. The washing water may also be heated by a heater, preferably to about 75 degrees Celsius before use. Rinse nozzles are provided on the exit side of the second washing chamber, and rinsing water is sprayed from above and below the dishes Ps to rinse them.

[0053] (clean table) The main washing machine B may be equipped with a transport mechanism for the dish racks 21s similar to that of the washing machine A. The dish racks 21s containing the rinsed dishes P are carried out to the clean table T4 by the transport mechanism provided in the main washing machine B. The clean table T4 is an exit table of this washing system SJ2, and is a table on which the washing rack 21s containing the dishes Ps for which washing has been completed is temporarily placed. The dish rack 21s may be transported in conjunction with the main washer B so that it moves in tandem. This allows the loading, washing, and unloading of the main washer B to be linked, enabling automatic transport and automatic main washing in the system SJ2. In addition, when combined with the automatic transport of the pre-washing, the entire system SJ2 can automatically transport and wash the dish rack 21s from loading to unloading.

[0054] In addition to removing leftover food in the pre-wash, by performing this main wash twice and then rinsing at the end, it is possible to wash dishes that have been soaked by hand, for example, when cleaning dishes with cooked rice stuck to them or dishes with oily stains that do not flow well. In addition, if the dish racks 21s are automatically transported from loading to unloading and automatically washed, the system can be fully automated by kitchen staff, eliminating the need for staff dedicated to dish washing. [Industrial Applicability]

[0055] In addition to washing dishes, if any solid dirt occurs during washing, the washing machine can be used as a suitable washing machine when it can remove the dirt and circulate the washing water. [Explanation of symbols]

[0056] A washing machine 10 housing, 11 legs, 12 operation panel (user interface), 13 emergency stop button, 14 loading entrance, 15 loading exit, 20, 20s Dish rack transport mechanism, 21 Dish rack, 22 Feed claw, 23 Transport rail, 24 Feed lever, 25 Feed frame 30 Cleaning water shielding mechanism 50 Emergency stop button 100 Cleaning section 110 Cleaning Room 111 upper cleaning nozzle (cleaning nozzle), 111a straightening plate 112 lower cleaning nozzle (cleaning nozzle), 112a straightening plate 200 Cleaning water supply unit 210 cleaning water tank, 211 cleaning water supply pipe, 212 cleaning water delivery pipe, 213 intake port, 214 strainer, 215 cleaning water supply pipe, 215a water supply port 220 Cleaning water pump 241 Supply port 242 recovered water supply port, 243 drain port, 245 overflow pipe, 245a drain 300 Food waste processing unit 310 first processing mechanism, 311 plate surface, strainer inclined plate, 311a through hole, 312 support, 313 handle 320 second processing mechanism, 321 leftover basket, 321a draining section, 322 box, 322a water inlet 330 Reclaimed water conduit B Main washing machine (other washing machines) D Leftovers P, Ps tableware S Maximum height V Exhaust valve W Cleaning water W11 Washing water that falls into the first processing mechanism and is carried to the second processing mechanism together with food residue W12 Wash water recovered by the first treatment mechanism W22 Wash water recovered by the second treatment mechanism

Claims

1. A washing machine (A) includes a washing unit (100) that sprays washing water onto dishes with food residue to wash them, a food residue treatment unit (300) that separates the washing water that falls after washing and the food residue and collects them, and a washing water supply unit (200) that stores the collected washing water and receives a supply of new washing water and sends it to the washing unit for spraying, all of which are housed in a housing (10). The food waste processing unit (300) includes a first processing mechanism (310) and a second processing mechanism (320), The first processing mechanism (310) receives the falling washing water and food residue (D), and includes a strainer inclined plate (311) that divides the washing water so that a part (W12) of the received washing water is returned to the washing water supply unit (200) and the remaining washing water (W11) carries the food residue to the second processing mechanism (320). The second processing mechanism (320) is provided with a leftover food basket (321) that receives the leftover food (D) and the remaining washing water (W11) carried from the first processing mechanism, recovers the leftover food (D), and returns the remaining washing water (W11) to the washing water supply unit (200), The washing unit (100) includes a washing chamber (110) and washing nozzles (111, 112) for spraying washing water from multiple directions onto tableware (B) accommodated in the washing chamber. The strainer inclined plate (311) is a removable plate surface arranged at a lower part of the washing chamber (110) at an incline with respect to the horizontal, and has a plurality of through holes (311a) for adjusting the amount of washing water (W11) that is received and carried to the food waste basket together with the food waste, The food waste basket (321) is disposed below the end of the strainer inclined plate (311) at the lowest position of the inclination, and has a draining section (321a) on its bottom surface for collecting the food waste and passing the washing water (W11), The wash water supply unit (200) comprises a wash water tank (210) disposed below the strainer inclined plate (311) for collecting wash water that passes through the plate surface and falls and wash water that passes through the draining unit (321a), a wash water pump (220) for sending the wash water (W) stored in the wash water tank (210) to be sprayed to the wash nozzle, a water supply port (215a) for supplying wash water when the wash water tank is empty, and a drain port (243) for draining the wash water stored in the wash water tank (210), The washing machine (A) further has a supply port (241) for supplying new washing water with wastewater from another washing machine.

2. A cleaning system (SJ2) in which the cleaning machine (A) described in claim 1 is used as a first cleaning machine to perform preliminary cleaning, and another cleaning machine is used as a second cleaning machine to perform main cleaning, wherein the first cleaning machine receives water from the supply port (241) that is wastewater from the second cleaning machine as new cleaning water, and an emergency stop switch is provided on the front side of the housing (10).

3. A cleaning system as described in claim 2, wherein the first cleaning machine and the second cleaning machine are integrated into one cleaning system (SJ2).

4. In a washing system (SJ2) in which a washing machine (A) as described in claim 1 is used as a first washing machine to perform a preliminary wash and another washing machine is used as a second washing machine to perform the main wash, the first washing machine further comprises a dish rack transport mechanism (20) for transporting a dish rack (21) for carrying dishes (P) into and out of a washing room (110), an inlet (14) for transporting the dish rack and an outlet (15) for transporting the dish rack, and a washing water shielding mechanism (30) for preventing washing water from splashing from the inlet and the outlet.

5. 5. The cleaning system (SJ2) of claim 4, comprising a feed table (T2) in front of the first cleaning machine, a discharge table (T3) between the first cleaning machine and the second cleaning machine, and a clean table (T4) after the second cleaning machine.

6. Furthermore, a soiled table (T1) is provided in front of the feed table (T2), 6. A cleaning system (SJ2) according to claim 5, wherein the delivery table (T3) is laid out so that the transfer line thereof is bent at an angle of 90 degrees.

7. 10. A washing system in which the washing machine according to claim 1 is used as a first washing machine to perform a preliminary washing, and another washing machine is used as a second washing machine to perform a main washing, The second washer has at least two washing chambers arranged in series, each of which is provided with a rotary washing nozzle that rotates and sprays washing water to perform washing, and the second washing chamber is further provided with a rinse nozzle that sprays rinsing water to perform rinsing, thereby forming a washing system.

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