CN113786143B

CN113786143B - Rinsing device and method for dish-washing machine

Info

Publication number: CN113786143B
Application number: CN202111200224.3A
Authority: CN
Inventors: 张远宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2023-08-22
Anticipated expiration: 2041-10-14
Also published as: CN113786143A; WO2023060971A1

Abstract

The invention relates to the field of kitchen appliances, in particular to a rinsing device of a dish washer. The rinsing device of the dish-washing machine comprises a dish-washing machine nozzle reversing rotating device (1), a water circulating system (2) and a control box (3); the spray head reversing rotating device (1) of the dish washer comprises a synchronous belt linear guide rail (4), a connecting seat (5), a water spraying system (6) and a plastic drag chain (7); the water circulation system (4) comprises a water return tank (33), an A sealing cylinder (34), a B sealing cylinder (35), an A water tank (36), a B water tank (37) and a booster pump (38). The invention has the advantages of simple operation, high rinsing efficiency, short time, good rinsing effect and water saving, and is manually controlled to rinse.

Description

Rinsing device and method for dish-washing machine

Technical Field

The invention relates to the field of kitchen appliances, in particular to a rinsing device and a rinsing method of a dish washer.

Background

In the places of hotel, canteen and hotel tableware cleaning, dish washer is a very commonly used cleaning tool, and it is mainly used for cleaning, stoving tableware such as bowl dish, simultaneously reduces the manual intervention to a certain extent and improves the efficiency of washing dishes, but the in-process of rinsing behind the washing of dish washer tableware with the liquid detergent water at present, the position of jet pipe is designed to be fixed, and dishes etc. are put on the conveyer belt and are sent jet pipe department one by one and accept to spray, so, because of the position of jet pipe is motionless, can not carry out the omnidirectional injection to bowl dish, bowl dish rinsing is not clean.

Disclosure of Invention

The invention aims to provide a dishwasher rinsing device and method which are simple to operate, manually control rinsing, high in rinsing efficiency, short in time, good in rinsing effect and water-saving, and effectively solve the problem of omnibearing rapid rinsing.

The aim of the invention is achieved by the following technical scheme:

the rinsing device of the dish-washing machine comprises a dish-washing machine nozzle reversing rotating device, a water circulating system and a control box;

the spray head reversing rotating device of the dish washer comprises a synchronous belt linear guide rail, a connecting seat, a water spraying system and a plastic drag chain;

the synchronous belt linear guide rail comprises a linear guide rail, a synchronous wheel, a synchronous belt, a synchronous motor and a sliding block; the linear guide rail is fixedly arranged on the fixed pipe through a connecting seat, synchronous wheels are arranged at two ends of the linear guide rail, the synchronous belt is arranged on the synchronous wheels, the synchronous wheels are driven by a synchronous motor, and the sliding block is arranged on the synchronous belt;

the water spraying system comprises a left side pipe, a right side pipe, an upper rotating pipe, a middle rotating pipe, a lower rotating pipe, a semicircular spray head, a short shifting piece, a long shifting piece, an upper double-rod cylinder, a middle double-rod cylinder and a lower double-rod cylinder; the left side pipe is a vertical rectangular pipe, the right side of the middle part is provided with an L-shaped bend, the L-shaped bend is matched with the sliding block, and the right sides of the upper part, the middle part and the lower part of the left side pipe are provided with interfaces; the right side pipe is a vertical rectangular pipe, the left side of the middle part is provided with an L-shaped bend, the L-shaped bend is matched with the sliding block, the left side of the lower part is provided with an L-shaped bend, the L-shaped bend water pipe is provided with a water inlet, and the left sides of the upper part, the middle part and the lower part of the right side pipe are provided with interfaces; the upper rotary pipe is a rectangular pipe, two ends of the upper rotary pipe are provided with connectors, the left end of the upper rotary pipe is provided with a poking plate with a groove, and the lower side of the upper rotary pipe is provided with two nozzle connecting ports; the middle rotary pipe is a rectangular pipe, two ends of the middle rotary pipe are provided with connectors, the left end of the middle rotary pipe is provided with a poking plate with a groove, and the upper side and the lower side of the middle rotary pipe are respectively provided with two nozzle connecting ports; the lower rotary pipe is a rectangular pipe, two ends of the lower rotary pipe are provided with connectors, the left end of the lower rotary pipe is provided with a poking plate with a groove, and the upper side of the lower rotary pipe is provided with two nozzle connecting ports; the lower part of the semicircular spray head is a flange interface, the upper part of the semicircular spray head is a semicircular head, and the semicircular head is provided with a linear spray orifice; the short dialing piece is a square main body, and one side of the short dialing piece is provided with a dialing rod; the long shifting piece is a square main body, one side of the long shifting piece is connected with one end of the folding rod, and the other end of the folding rod is connected with the shifting rod;

the L-shaped bends of the left side pipe and the right side pipe are fixed on the sliding block, semicircular spray heads connected by anchor clamps are arranged on the spray head connecting ports, and the straight line direction of the spray orifice of each semicircular spray head is consistent with the long side direction of the upper rotating pipe, the middle rotating pipe and the lower rotating pipe; the upper rotating pipe, the middle rotating pipe and the lower rotating pipe are connected with the left side pipe and the right side pipe through rotating joints; an upper double-rod cylinder, a middle double-rod cylinder and a lower double-rod cylinder are arranged on one side of the left side pipe; a baffle of the upper double-rod air cylinder is provided with a short shifting piece, and a shifting rod of the short shifting piece is inserted into a groove of a groove shifting plate of the upper rotary pipe; a long shifting piece is arranged on a baffle plate of the middle double-rod cylinder, and a shifting rod of the long shifting piece is inserted into a groove of a groove shifting plate of the middle rotary pipe; a baffle of the lower double-rod air cylinder is provided with a short shifting piece, and a shifting rod of the short shifting piece is inserted into a groove of a groove shifting plate of the lower rotary pipe; the air nozzles of the upper double-rod air cylinder, the middle double-rod air cylinder and the lower double-rod air cylinder are connected with the A, B air nozzle of the spray head reversing valve through air pipes, and the P air nozzle of the spray head reversing valve is connected with the air storage tank through air pipes;

the water inlet of the right pipe is connected with one end of a hose which is arranged in the plastic drag chain;

the water circulation system comprises a water return tank, an A sealing cylinder, a B sealing cylinder, an A water tank, a B water tank and a booster pump;

a water return tank is arranged below the reversing rotating device of the dishwasher spray head, an A water return hole and a B water return hole are arranged at the lower part of one end of the water return tank, and an A water tank is arranged below the A water return hole; the sealing cylinder A is arranged above the water return hole A, and the front end of the telescopic rod of the sealing cylinder A is provided with a sealing plate; the air tap of the A sealing air cylinder is connected with the A, B air tap of the A sealing reversing valve through an air pipe, and the P air tap of the A sealing reversing valve is connected with the air storage tank through an air pipe; the sealing cylinder B is arranged above the water return hole B, and the front end of the telescopic rod of the sealing cylinder B is provided with a sealing plate; the air tap of the B sealing air cylinder is connected with the A, B air tap of the B sealing reversing valve through an air pipe, and the P air tap of the B sealing reversing valve is connected with the air storage tank through an air pipe; the diameter of the sealing plate is larger than that of the water return hole A and the water return hole B;

the water tank A is provided with a water inlet pipe A and a water exchange pipe A, the water inlet pipe A is provided with a water inlet valve A, and the water exchange pipe A is provided with a water exchange valve; the bottom of the water tank A is provided with a water return pipe A and a drain pipe, the water return pipe A is provided with a water return valve A, the drain pipe is provided with a drain valve, and the water tank A is internally provided with an electric heater A, a liquid level sensor A and a temperature sensor A; a B water inlet pipe is arranged on the B water tank, and a B water inlet valve is arranged on the B water inlet pipe; the bottom of the water tank B is provided with a water return pipe B, the water return pipe B is provided with a water return valve B, and the water tank B is internally provided with an electric heater B, a liquid level sensor B and a temperature sensor B; the water inlet pipe A and the water inlet pipe B are connected with a total water inlet pipe, and the total water inlet pipe is provided with a total water inlet valve;

the A return pipe and the B return pipe are connected with a main return pipe, and the main return pipe is connected with a liquid inlet of the booster pump; the liquid outlet of the booster pump is connected with a water exchange pipe and a spray pipe through a total water outlet pipe, the spray pipe penetrates through the water return tank to be connected with the other end of the hose, and a spray valve is arranged on the spray pipe;

the control box comprises a preparation button, a first rinsing button, a second rinsing button, a water draining button, a water changing button, a water supplementing button and a controller;

the liquid level sensor A, the temperature sensor A, the liquid level sensor B, the temperature sensor B, the preparation button, the first rinsing button, the second rinsing button, the water discharging button, the water changing button and the water supplementing button are connected with the controller through signal wires, and the controller is connected with the synchronous motor, the spray head reversing valve, the booster pump, the sealed reversing valve A, the sealed reversing valve B, the water inlet valve A, the water changing valve A, the water returning valve A, the water draining valve, the electric heater A, the water inlet valve B, the water returning valve B, the electric heater B, the total water inlet valve and the spray valve through control wires.

The spray head reversing valve, the A sealing reversing valve and the B sealing reversing valve are two-position four-way electromagnetic reversing valves.

The A seal reversing valve, the B seal reversing valve, the A water inlet valve, the water exchange valve, the A water return valve, the drain valve, the B water inlet valve, the B water return valve and the total water inlet valve are electromagnetic valves.

The controller is a DCS host, and the signal line and the control line are shielding lines.

The rinsing work comprises the following steps:

A. the preparation stage: the staff presses a preparation button, the preparation button transmits signals to a controller through a signal wire, the controller controls a total water inlet valve, an A water inlet valve and a B water inlet valve to be opened through control wires, tap water is put into the A water tank and the B water tank, when the water level in the A water tank reaches a set position, an A liquid level sensor transmits signals to the controller through the signal wire, the controller controls the A water inlet valve to be closed and an A electric heater to heat through the control wires, and when the water temperature in the A water tank is heated to a set temperature range value, the A temperature sensor transmits signals to the controller through the signal wire, and the controller controls the A electric heater to stop heating through the control wires; the water inlet valve B and the electric heater B act in the same way under the same condition;

B. a first rinsing stage: the staff presses a first rinsing button, the first rinsing button transmits signals to a controller through a signal wire, and the controller controls the booster pump to operate, the A water return valve to open, the synchronous motor to rotate forward, and the A sealing reversing valve to conduct power-on actions through the control wire; the air inlet P of the sealing reversing valve A is communicated with the air outlet A, the air pushes the telescopic rod to retract, and the sealing plate opens the water return hole A; hot water in the water tank A enters a water spraying system from the water return pipe A through a spray valve, a synchronous motor drives a sliding block to move at a constant speed from the front end to the rear end of a linear guide rail according to a set moving speed, the water spraying system on the sliding block moves simultaneously, and the water is sprayed out from a semicircular spray head to form a uniform inclined water curtain; the water for spray washing tableware falls back to the water tank, and the hot water returns to the water tank A through the water return hole A; after a period of time, when the sliding block reaches a set moving distance, the controller controls the synchronous motor to reversely rotate and the spray head reversing valve to conduct power-on action through the control line, the air inlet P of the spray head reversing valve is communicated with the air outlet B, the air pushes the baffle to operate, and the short shifting piece and the long shifting piece rotate the upper rotating pipe, the middle rotating pipe and the lower rotating pipe by a certain angle, so that the inclined water curtain is changed into another angle which is symmetrical to the original angle along the vertical plane; the synchronous motor drives the water spraying system to move at a constant speed from the rear end to the front end of the linear guide rail according to a set moving speed; after a period of time, when the sliding block returns to the original position at the front end, the controller controls the spray head reversing valve to conduct power-on action through the control line, the air inlet P of the spray head reversing valve is communicated with the air outlet A, the air pushes the baffle to operate, and the short shifting piece and the long shifting piece rotate the upper rotating pipe, the middle rotating pipe and the lower rotating pipe back to the original positions, so that the repeated operation of the water spraying system is completed once; repeating the operation for 3 times; the controller controls the booster pump to stop running and the water return valve A to be closed through a control line;

C. a second rinsing stage: after water on the tableware is drained at intervals, an employee presses a second rinsing button, the second rinsing button transmits signals to a controller through a signal wire, and the controller controls the booster pump to operate, the water return valve B is opened, the synchronous motor rotates positively, and the sealing reversing valve A and the sealing reversing valve B are electrified through control wires; the air inlet P of the sealing reversing valve A is communicated with the air outlet B, the air pushes the telescopic rod to extend out, and the sealing plate seals the water return hole A; the air inlet P of the sealing reversing valve B is communicated with the air outlet A, the air pushes the telescopic rod to retract, and the sealing plate opens the water return hole B; hot water in the water tank B enters a water spraying system from a water return pipe B through a spray valve, a synchronous motor drives a sliding block to move at a constant speed from the front end to the rear end of a linear guide rail according to a set moving speed, the water spraying system on the sliding block moves simultaneously, and the water is sprayed out from a semicircular spray head to form a uniform inclined water curtain; the water for spray washing tableware falls back to the water tank, and the hot water returns to the water tank B through the water return hole B; after a period of time, when the sliding block reaches a set moving distance, the controller controls the synchronous motor to reversely rotate and the spray head reversing valve to conduct power-on action through the control line, the air inlet P of the spray head reversing valve is communicated with the air outlet B, the air pushes the baffle to operate, and the short shifting piece and the long shifting piece rotate the upper rotating pipe, the middle rotating pipe and the lower rotating pipe by a certain angle, so that the inclined water curtain is changed into another angle which is symmetrical to the original angle along the vertical plane; the synchronous motor drives the water spraying system to move at a constant speed from the rear end to the front end of the linear guide rail according to a set moving speed; after a period of time, when the sliding block returns to the original position at the front end, the controller controls the spray head reversing valve to conduct power-on action through the control line, the air inlet P of the spray head reversing valve is communicated with the air outlet A, the air pushes the baffle to operate, and the short shifting piece and the long shifting piece rotate the upper rotating pipe, the middle rotating pipe and the lower rotating pipe back to the original positions, so that the repeated operation of the water spraying system is completed once; repeating the operation for 2 times; the controller controls the booster pump to stop running and the water return valve B to be closed through a control line; after the water on the tableware is drained at intervals, the controller controls the total water inlet valve and the spray valve to be closed through control lines, and the sealing reversing valve B is electrified; the air inlet P of the sealing reversing valve B is communicated with the air outlet B, the air pushes the telescopic rod to extend out, and the sealing plate seals the water return hole B; finishing one-time rinsing work; and after finishing two to three times of automatic cleaning work, carrying out water changing work.

The set temperature range value is 70-80 ℃, the power of the synchronous motor is 750W, the power of the electric heater A is 3KW, the power of the electric heater B is 3KW, and the total water storage capacity is 80Kg.

The set moving distance is 1780mm, and the set moving speed is 130-150mm/s.

The water changing work comprises the following steps:

A. and (3) a drainage stage: the staff presses the drainage button, the drainage button transmits signals to the controller through the signal wire, and the controller controls the drainage valve to be opened through the control wire;

B. and (3) water exchange stage: after a certain time is elapsed and the sewage in the water tank A is emptied, an employee presses a water changing button, the water changing button transmits signals to a controller through a signal wire, the controller controls a drain valve to be closed, a booster pump to operate, a water changing valve and a water returning valve to be opened through control wires, and water in the water tank B is put into the water tank A;

C. and (3) water supplementing stage: after a certain time, when water in the water tank B is emptied, an employee presses a water supplementing button, the water supplementing button transmits signals to the controller through a signal wire, the controller controls the water exchanging valve and the water returning valve B to be closed through a control wire, the total water inlet valve and the water inlet valve B to be opened, tap water is put into the water tank B, when the water level in the water tank B reaches a set position, the liquid level sensor B transmits signals to the controller through the signal wire, and the controller controls the total water inlet valve and the water inlet valve B to be closed through the control wire, so that water exchanging work is completed.

Advantageous effects

1. The invention has the advantages of simple operation, high rinsing efficiency, short time, good rinsing effect and water saving, and can meet the requirements of a large amount of fast rinsing tableware.

2. The invention adopts the reversing rotating device of the dishwasher spray head, the formed water curtain is free from gaps, the water curtain automatically moves and rotates, the rinsing time is ensured to be short, and the rinsing effect is good.

3. The invention adopts a water circulation system, so that water can be saved.

4. The spray head reversing rotating device of the cabinet dish washer has no electrical elements, and ensures the normal rinsing operation.

5. The invention adopts water in different water tanks for rinsing for multiple times, thereby ensuring the rinsing quality.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of a reversing rotation device of a dishwasher spray head according to the present invention.

Fig. 3 is an enlarged partial view of section i of fig. 4.

Fig. 4 is a schematic perspective view of a water spray system according to the present invention.

Fig. 5 is a partial enlarged view of the portion ii of fig. 4.

Fig. 6 is an enlarged partial view of the iii portion of fig. 4.

Fig. 7 is a partial enlarged view of the portion iv of fig. 4.

Fig. 8 is a partial enlarged view of the v portion of fig. 4.

Fig. 9 is a schematic perspective view of a semicircular spray head according to the present invention.

Fig. 10 is a schematic perspective view of the water circulation system without the water return tank according to the present invention.

FIG. 11 is a schematic perspective view of the water return tank according to the present invention.

FIG. 12 is a schematic diagram of the connection of the present invention.

1-dishwasher spray head reversing rotating device, 2-water circulation system, 3-control box, 4-synchronous belt linear guide rail, 5-connecting seat, 6-water spraying system, 7-plastic drag chain, 8-linear guide rail, 9-synchronous wheel, 10-synchronous belt, 11-synchronous motor, 12-slider, 13-fixed pipe, 14-left side pipe, 15-right side pipe, 16-upper rotating pipe, 17-middle rotating pipe, 18-lower rotating pipe, 19-semicircular spray head, 20-short shifting piece, 21-long shifting piece, 22-upper double-rod cylinder, 23-middle double-rod cylinder, 24-lower double-rod cylinder, 25-water inlet, 26-grooved shifting plate, 27-spray head opening, 28-flange interface 29-semicircle head, 30-injection port, 31-rotary joint, 32-nozzle reversing valve, 33-water return tank, 34-A sealed cylinder, 35-B sealed cylinder, 36-A water tank, 37-B water tank, 38-booster pump, 39-A water return hole, 40-B water return hole, 41-sealing plate, 42-A sealed reversing valve, 43-B sealed reversing valve, 44-A water inlet pipe, 45-water exchange pipe, 46-A water inlet valve, 47-water exchange valve, 48-A water return pipe, 49-drain pipe, 50-A water return valve, 51-drain valve, 52-A electric heater, 53-A liquid level sensor, 54-A temperature sensor, 55-B water inlet pipe, 56-B water inlet valve, 57-B water return pipe, 58-B water return valve, 59-B electric heater, 60-B liquid level sensor, 61-B temperature sensor, 62-total water inlet pipe, 63-total water inlet valve, 64-total water return pipe, 65-total water outlet pipe, 66-spray pipe, 67-spray valve, 68-ready button, 69-first rinsing button, 70-second rinsing button, 71-draining button, 72-water changing button, 73-water supplementing button, 74-controller.

Description of the embodiments

Examples

As shown in fig. 1 to 12, the dishwasher rinsing device comprises a dishwasher spray head reversing rotation device 1, a water circulation system 2 and a control box 3;

the spray head reversing rotating device 1 of the dish washer comprises a synchronous belt linear guide rail 4, a connecting seat 5, a water spraying system 6 and a plastic drag chain 7;

the synchronous belt linear guide rail 4 comprises a linear guide rail 8, a synchronous wheel 9, a synchronous belt 10, a synchronous motor 11 and a sliding block 12; the linear guide rail 8 is fixedly arranged on the fixed pipe 13 through the connecting seat 5, the two ends of the linear guide rail 8 are provided with synchronous wheels 9, the synchronous belt 10 is arranged on the synchronous wheels 9, the synchronous wheels 9 are driven by the synchronous motor 11, and the sliding block 12 is arranged on the synchronous belt 10;

the water spraying system 6 comprises a left side pipe 14, a right side pipe 15, an upper rotating pipe 16, a middle rotating pipe 17, a lower rotating pipe 18, a semicircular spray head 19, a short poking part 20, a long poking part 21, an upper double-rod air cylinder 22, a middle double-rod air cylinder 23 and a lower double-rod air cylinder 24; the left side pipe 14 is a vertical rectangular pipe, the right side of the middle part is provided with an L-shaped bend, the L-shaped bend is matched with the sliding block 12, and the right sides of the upper part, the middle part and the lower part of the left side pipe 14 are provided with interfaces; the right side pipe 15 is a vertical rectangular pipe, the left side of the middle part is provided with an L-shaped bend, the L-shaped bend is matched with the sliding block 12, the left side of the lower part is provided with an L-shaped bend, the L-shaped bend water pipe is provided with a water inlet 25, and the left sides of the upper part, the middle part and the lower part of the right side pipe 15 are provided with interfaces; the upper rotary pipe 16 is a rectangular pipe, two ends of the upper rotary pipe are provided with connectors, the left end of the upper rotary pipe is provided with a poking plate 26 with a groove, and the lower side of the upper rotary pipe is provided with two nozzle connecting ports 27; the middle rotary pipe 17 is a rectangular pipe, two ends of the middle rotary pipe are provided with connectors, the left end of the middle rotary pipe is provided with a poking plate 26 with a groove, and the upper side and the lower side of the middle rotary pipe are respectively provided with two nozzle connecting ports 27; the lower rotary pipe 18 is a rectangular pipe, two ends of the lower rotary pipe are provided with connectors, the left end of the lower rotary pipe is provided with a poking plate 26 with a groove, and the upper side of the lower rotary pipe is provided with two nozzle connecting ports 27; the lower part of the semicircular spray head 19 is provided with a flange interface 28, the upper part is provided with a semicircular head 29, and the semicircular head 29 is provided with a linear spray orifice 30; the short dialing piece 20 is a square main body, and one side is provided with a dialing rod; the long shifting piece 21 is a square main body, one side of the long shifting piece is connected with one end of a folding rod, and the other end of the folding rod is connected with a shifting rod;

the L-shaped bends of the left side pipe 14 and the right side pipe 15 are fixed on the sliding block 12, semicircular spray heads 19 connected by hoops are arranged on the spray head connecting ports 27, and the straight line direction of the spray ports 30 of the semicircular spray heads 19 is consistent with the long side direction of the upper rotating pipe 16, the middle rotating pipe 17 and the lower rotating pipe 18; the upper rotary pipe 16, the middle rotary pipe 17 and the lower rotary pipe 18 are connected with the left side pipe 14 and the right side pipe 15 through rotary joints 31; an upper double-rod cylinder 22, a middle double-rod cylinder 23 and a lower double-rod cylinder 24 are arranged on one side of the left side pipe 14; the baffle of the upper double-rod air cylinder 22 is provided with a short poking piece 20, and a poking rod of the short poking piece 20 is inserted into a groove of a groove poking plate 26 of the upper rotary pipe 16; a long shifting piece 21 is arranged on a baffle plate of the middle double-rod air cylinder 23, and a shifting rod of the long shifting piece 21 is inserted into a groove of a groove shifting plate 26 of the middle rotary pipe 17; the baffle of the lower double-rod air cylinder 24 is provided with a short poking piece 20, and a poking rod of the short poking piece 20 is inserted into a groove of a groove poking plate 26 of the lower rotary pipe 18; the air nozzles of the upper double-rod air cylinder 22, the middle double-rod air cylinder 23 and the lower double-rod air cylinder 24 are connected with the A, B air nozzle of the spray head reversing valve 32 through air pipes, and the P air nozzle of the spray head reversing valve 32 is connected with an air storage tank through air pipes;

the water inlet 25 of the right pipe 15 is connected with one end of a hose which is arranged in the plastic drag chain 7;

the water circulation system 4 comprises a water return tank 33, an A sealing cylinder 34, a B sealing cylinder 35, an A water tank 36, a B water tank 37 and a booster pump 38;

a water return tank 33 is arranged below the dishwasher nozzle reversing rotating device 1, an A water return hole 39 and a B water return hole 40 are arranged at the lower part of one end of the water return tank 33, and an A water tank 36 is arranged below the A water return hole 39; the A sealing cylinder 34 is arranged above the A backwater hole 39, and a sealing plate 41 is arranged at the front end of the telescopic rod of the A sealing cylinder 34; the air tap of the A sealing air cylinder 34 is connected with the A, B air tap of the A sealing reversing valve 42 through an air pipe, and the P air tap of the A sealing reversing valve 42 is connected with an air storage tank through an air pipe; the B sealing cylinder 35 is arranged above the B water return hole 40, and a sealing plate 41 is arranged at the front end of the telescopic rod of the B sealing cylinder 35; the air tap of the B sealing air cylinder 35 is connected with the A, B air tap of the B sealing reversing valve 43 through an air pipe, and the P air tap of the B sealing reversing valve 43 is connected with an air storage tank through an air pipe; the diameter of the sealing plate 41 is larger than that of the water return holes A39 and B40;

a water tank 36 is provided with an A water inlet pipe 44 and a water exchange pipe 45, the A water inlet pipe 44 is provided with an A water inlet valve 46, and the water exchange pipe 45 is provided with a water exchange valve 47; the bottom of the A water tank 36 is provided with an A water return pipe 48 and a drain pipe 48, the A water return pipe 48 is provided with an A water return valve 50, the drain pipe 48 is provided with a drain valve 51, and the A water tank 36 is internally provided with an A electric heater 52, an A liquid level sensor 53 and an A temperature sensor 54; b water inlet pipe 55 is arranged on B water tank 37, and B water inlet valve 56 is arranged on B water inlet pipe 55; the bottom of the B water tank 37 is provided with a B water return pipe 57, the B water return pipe 57 is provided with a B water return valve 58, and a B electric heater 59, a B liquid level sensor 60 and a B temperature sensor 61 are arranged in the B water tank 37; the A water inlet pipe 44 and the B water inlet pipe 55 are connected with a total water inlet pipe 62, and a total water inlet valve 63 is arranged on the total water inlet pipe 62;

the A return pipe 59 and the B return pipe 57 are connected with a main return pipe 64, and the main return pipe 64 is connected with a liquid inlet of the booster pump 38; the liquid outlet of the booster pump 38 is connected with a water exchange pipe 47 and a spray pipe 66 through a total water outlet pipe 65, the spray pipe 66 passes through the water return tank 33 to be connected with the other end of the hose, and a spray valve 67 is arranged on the spray pipe 66;

the control box includes a preparation button 68, a first rinse button 69, a second rinse button 70, a drain button 71, a water change button 72, a water replenishment button 73, and a controller 74;

the A liquid level sensor 53, the A temperature sensor 54, the B liquid level sensor 60, the B temperature sensor 61, the preparation button 68, the first rinsing button 69, the second rinsing button 70, the water discharging button 71, the water changing button 72 and the water supplementing button 73 are connected with a controller 74 through signal wires, and the controller 74 is connected with the synchronous motor 11, the spray head reversing valve 32, the booster pump 38, the A sealing reversing valve 42, the B sealing reversing valve 43, the A water inlet valve 46, the water changing valve 47, the A water return valve 50, the drain valve 51, the A electric heater 52, the B water inlet valve 56, the B water return valve 58, the B electric heater 59, the total water inlet valve 63 and the spray valve 67 through control wires.

The spray head reversing valve 32, the A sealing reversing valve 42, the B sealing reversing valve 43 are two-position four-way electromagnetic reversing valves.

The A seal reversing valve 42, the B seal reversing valve 43, the A water inlet valve 46, the water changing valve 47, the A water return valve 50, the drain valve 51, the B water inlet valve 56, the B water return valve 58 and the total water inlet valve 63 are electromagnetic valves.

The controller 74 is a DCS host, and the signal lines and control lines are shielded lines.

The rinsing work comprises the following steps:

A. the preparation stage: the staff presses the preparation button 68, the preparation button 68 transmits signals to the controller 74 through a signal wire, the controller 74 controls the total water inlet valve 63, the A water inlet valve 46 and the B water inlet valve 56 to be opened through control wires, tap water is put into the A water tank 36 and the B water tank 37, when the water level in the A water tank 36 reaches a set position, the A liquid level sensor 53 transmits signals to the controller 74 through the signal wire, the controller 74 controls the A water inlet valve 46 to be closed and the A electric heater 52 to heat through the control wires, when the water temperature in the A water tank 36 is heated to a set temperature range value, the A temperature sensor 54 transmits signals to the controller 74 through the signal wire, and the controller 74 controls the A electric heater 52 to stop heating through the control wires; the B water inlet valve 56 and the B electric heater 59 act in the same way;

B. a first rinsing stage: the staff presses the first rinsing button 69, the first rinsing button 69 transmits signals to the controller 74 through a signal wire, and the controller 74 controls the booster pump 38 to operate, the A water return valve 50 to open, the synchronous motor 11 to rotate forwards, and the A seal reversing valve 42 to conduct power-on actions through the control wire; the air inlet P of the A seal reversing valve 42 is communicated with the air outlet A, the air pushes the telescopic rod to retract, and the sealing plate 41 opens the A water return hole 39; hot water in the water tank A36 enters the water spraying system 6 from the water return pipe A through the spray valve 67, the synchronous motor 11 drives the sliding block 12 to move at a constant speed from the front end to the rear end of the linear guide rail 8 according to a set moving speed, the water spraying system 6 on the sliding block 12 moves simultaneously, and the water is sprayed out from the semicircular spray head 19 to form a uniform inclined water curtain; the water for spraying tableware falls back to the water tank 33, and the hot water returns to the water tank 36 through the water return hole A39; after a period of time, when the sliding block 12 reaches a set moving distance, the controller 74 controls the synchronous motor 11 to reversely rotate and the spray head reversing valve 32 to be electrified through a control line, the air inlet P of the spray head reversing valve 32 is communicated with the air outlet B, the air pushing baffle plate operates, and the short shifting piece 20 and the long shifting piece 21 rotate the upper rotating pipe 16, the middle rotating pipe 17 and the lower rotating pipe 18 by a certain angle so that the inclined water curtain is changed into another angle which is symmetrical to the original angle along a vertical plane; the synchronous motor 11 drives the water spraying system 6 to move at a constant speed from the rear end to the front end of the linear guide rail 8 according to a set moving speed; after a period of time, when the sliding block 12 returns to the original position of the front end, the controller 74 controls the spray head reversing valve 32 to be electrified through a control line, the air inlet P of the spray head reversing valve 32 is communicated with the air outlet A, the air pushes the baffle to operate, and the short shifting piece 20 and the long shifting piece 21 rotate the upper rotating pipe 16, the middle rotating pipe 17 and the lower rotating pipe 18 back to the original positions, so that the repeated operation of the water spraying system 6 is completed once; repeating the operation for 3 times; the controller 74 controls the booster pump 38 to stop running and the A water return valve 50 to be closed through a control line;

C. a second rinsing stage: after the water on the tableware is drained at certain intervals, an employee presses a second rinsing button 70, the second rinsing button 70 transmits signals to a controller 74 through a signal wire, and the controller 74 controls the booster pump 38 to operate, the water return valve 58 to open, the synchronous motor 11 to rotate forwards, and the sealing reversing valve A42 and the sealing reversing valve B43 to conduct power-on actions through control wires; the air inlet P of the A seal reversing valve 42 is communicated with the air outlet B, the air pushes the telescopic rod to extend out, and the sealing plate 41 seals the A backwater hole 39; the air inlet P of the sealing reversing valve 43 is communicated with the air outlet A, the air pushes the telescopic rod to retract, and the sealing plate 41 opens the water return hole 40 of B; hot water in the water tank 37B enters the water spraying system 6 from the water return pipe 57B through the spray valve 67, the synchronous motor 11 drives the sliding block 12 to move at a constant speed from the front end to the rear end of the linear guide rail 8 according to a set moving speed, the water spraying system 6 on the sliding block 12 moves simultaneously, and the water is sprayed out from the semicircular spray head 19 to form a uniform inclined water curtain; the water for spraying tableware falls back to the water return tank 33, and the hot water returns to the water tank 37 through the water return hole 40; after a period of time, when the sliding block 12 reaches a set moving distance, the controller 74 controls the synchronous motor 11 to reversely rotate and the spray head reversing valve 32 to be electrified through a control line, the air inlet P of the spray head reversing valve 32 is communicated with the air outlet B, the air pushing baffle plate operates, and the short shifting piece 20 and the long shifting piece 21 rotate the upper rotating pipe 16, the middle rotating pipe 17 and the lower rotating pipe 18 by a certain angle so that the inclined water curtain is changed into another angle which is symmetrical to the original angle along a vertical plane; the synchronous motor 11 drives the water spraying system 6 to move at a constant speed from the rear end to the front end of the linear guide rail 8 according to a set moving speed; after a period of time, when the sliding block 12 returns to the original position of the front end, the controller 74 controls the spray head reversing valve 32 to be electrified through a control line, the air inlet P of the spray head reversing valve 32 is communicated with the air outlet A, the air pushes the baffle to operate, and the short shifting piece 20 and the long shifting piece 21 rotate the upper rotating pipe 16, the middle rotating pipe 17 and the lower rotating pipe 18 back to the original positions, so that the repeated operation of the water spraying system 6 is completed once; repeating the operation for 2 times; the controller 74 controls the booster pump 38 to stop running and the B water return valve 58 to be closed through a control line; after the water on the tableware is drained at intervals, the controller 74 controls the total water inlet valve 63 and the spray valve 67 to be closed and the B seal reversing valve 43 to be electrified through control lines; the air inlet P of the sealing reversing valve 43 is communicated with the air outlet B, the air pushes the telescopic rod to extend out, and the sealing plate 41 seals the water return hole 40 of B; finishing one-time rinsing work; and after finishing two to three times of automatic cleaning work, carrying out water changing work.

The set temperature range value is 70-80 ℃, the power of the synchronous motor 11 is 750W, the power of the electric heater A52 is 3KW, the power of the electric heater B59 is 3KW, and the total water storage amount is 80Kg.

The set moving distance is 1780mm, and the set moving speed is 130mm/s.

The water changing work comprises the following steps:

A. and (3) a drainage stage: the staff presses the drain button 71, the drain button 71 transmits a signal to the controller 74 through a signal line, and the controller 74 controls the drain valve 51 to be opened through a control line;

B. and (3) water exchange stage: after a certain time period has elapsed, when the sewage in the water tank A36 is emptied, the staff presses the water changing button 72, the water changing button 72 transmits a signal to the controller 74 through a signal line, the controller 74 controls the water discharging valve 51 to be closed, the booster pump 38 to operate, the water changing valve 47 and the water returning valve B58 to be opened through a control line, and water in the water tank B37 is put into the water tank A36;

C. and (3) water supplementing stage: after a certain time, when the water in the B water tank 37 is emptied, an employee presses the water supplementing button 73, the water supplementing button 73 transmits signals to the controller 74 through a signal line, the controller 74 controls the water exchanging valve 47 and the B water returning valve 58 to be closed, the total water inlet valve 63 and the B water inlet valve 56 to be opened through control lines, tap water is put into the B water tank 37, when the water level in the B water tank reaches a set position, the B liquid level sensor 60 transmits signals to the controller 74 through the signal line, and the controller 74 controls the total water inlet valve 63 and the B water inlet valve 56 to be closed through the control lines, so that water exchanging work is completed.

Examples

A dishwasher rinsing device was implemented as in example 1, with a movement speed of 150mm/s being set.

Claims

1. The rinsing device of the dish-washing machine is characterized by comprising a dish-washing machine nozzle reversing rotating device (1), a water circulating system (2) and a control box (3);

the spray head reversing rotating device (1) of the dish washer comprises a synchronous belt linear guide rail (4), a connecting seat (5), a water spraying system (6) and a plastic drag chain (7);

the synchronous belt linear guide rail (4) comprises a linear guide rail (8), a synchronous wheel (9), a synchronous belt (10), a synchronous motor (11) and a sliding block (12); the linear guide rail (8) is fixedly arranged on the fixed pipe (13) through the connecting seat (5), the synchronous wheels (9) are arranged at the two ends of the linear guide rail (8), the synchronous belt (10) is arranged on the synchronous wheels (9), the synchronous wheels (9) are driven by the synchronous motor (11), and the sliding block (12) is arranged on the synchronous belt (10);

the water spraying system (6) comprises a left side pipe (14), a right side pipe (15), an upper rotating pipe (16), a middle rotating pipe (17), a lower rotating pipe (18), a semicircular spray head (19), a short shifting piece (20), a long shifting piece (21), an upper double-rod air cylinder (22), a middle double-rod air cylinder (23) and a lower double-rod air cylinder (24); the left side pipe (14) is a vertical rectangular pipe, the right side of the middle part is provided with an L-shaped bend, the L-shaped bend is matched with the sliding block (12), and the right sides of the upper part, the middle part and the lower part of the left side pipe (14) are provided with interfaces; the right side pipe (15) is a vertical rectangular pipe, the left side of the middle part is provided with an L-shaped bend, the L-shaped bend is matched with the sliding block (12), the left side of the lower part is provided with an L-shaped bend, the L-shaped bend water pipe is provided with a water inlet (25), and the left sides of the upper part, the middle part and the lower part of the right side pipe (15) are provided with interfaces; the upper rotary pipe (16) is a rectangular pipe, two ends of the upper rotary pipe are provided with connectors, the left end of the upper rotary pipe is provided with a poking plate (26) with a groove, and the lower side of the upper rotary pipe is provided with two nozzle connecting ports (27); the middle rotary pipe (17) is a rectangular pipe, two ends of the middle rotary pipe are provided with connectors, the left end of the middle rotary pipe is provided with a poking plate (26) with a groove, and the upper side and the lower side of the middle rotary pipe are respectively provided with two nozzle connecting ports (27); the lower rotary pipe (18) is a rectangular pipe, two ends of the lower rotary pipe are provided with connectors, the left end of the lower rotary pipe is provided with a poking plate (26) with a groove, and the upper side of the lower rotary pipe is provided with two nozzle connecting ports (27); the lower part of the semicircular spray head (19) is provided with a flange interface (28), the upper part is provided with a semicircular head (29), and the semicircular head (29) is provided with a linear spray orifice (30); the short shifting piece (20) is a square main body, and one side of the short shifting piece is provided with a shifting rod; the long shifting piece (21) is a square main body, one side of the long shifting piece is connected with one end of the folding rod, and the other end of the folding rod is connected with the shifting rod;

the L-shaped bends of the left side pipe (14) and the right side pipe (15) are fixed on the sliding block (12), semicircular spray heads (19) connected by hoops are arranged on the spray head connecting ports (27), and the straight line direction of the spray ports (30) of the semicircular spray heads (19) is consistent with the long side direction of the upper rotating pipe (16), the middle rotating pipe (17) and the lower rotating pipe (18); the upper rotary pipe (16), the middle rotary pipe (17) and the lower rotary pipe (18) are connected with the left side pipe (14) and the right side pipe (15) through rotary joints (31); an upper double-rod cylinder (22), a middle double-rod cylinder (23) and a lower double-rod cylinder (24) are arranged on one side of the left side pipe (14); a short shifting piece (20) is arranged on a baffle plate of the upper double-rod air cylinder (22), and a shifting rod of the short shifting piece (20) is inserted into a groove of a groove shifting plate (26) of the upper rotary pipe (16); a long shifting piece (21) is arranged on a baffle plate of the middle double-rod air cylinder (23), and a shifting rod of the long shifting piece (21) is inserted into a groove of a groove shifting plate (26) of the middle rotary pipe (17); a short shifting piece (20) is arranged on a baffle plate of the lower double-rod air cylinder (24), and a shifting rod of the short shifting piece (20) is inserted into a groove of a groove shifting plate (26) of the lower rotary pipe (18); the air nozzles of the upper double-rod air cylinder (22), the middle double-rod air cylinder (23) and the lower double-rod air cylinder (24) are connected with the A, B air nozzle of the spray head reversing valve (32) through air pipes, and the P air nozzle of the spray head reversing valve (32) is connected with the air storage tank through air pipes;

a water inlet (25) of the right pipe (15) is connected with one end of a hose which is arranged in the plastic drag chain (7);

the water circulation system (2) comprises a water return tank (33), an A sealed cylinder (34), a B sealed cylinder (35), an A water tank (36), a B water tank (37) and a booster pump (38);

a water return tank (33) is arranged below the reversing rotating device (1) of the dishwasher spray head, an A water return hole (39) and a B water return hole (40) are arranged at the lower part of one end of the water return tank (33), and an A water tank (36) is arranged below the A water return hole (39); the A sealing cylinder (34) is arranged above the A backwater hole (39), and a sealing plate (41) is arranged at the front end of a telescopic rod of the A sealing cylinder (34); the air tap of the A sealing air cylinder (34) is connected with the A, B air tap of the A sealing reversing valve (42) through an air pipe, and the P air tap of the A sealing reversing valve (42) is connected with an air storage tank through an air pipe; the sealing cylinder (35) is arranged above the water return hole (40), and a sealing plate (41) is arranged at the front end of the telescopic rod of the sealing cylinder (35); the air tap of the B sealing air cylinder (35) is connected with the A, B air tap of the B sealing reversing valve (43) through an air pipe, and the P air tap of the B sealing reversing valve (43) is connected with an air storage tank through an air pipe; the diameter of the sealing plate (41) is larger than that of the water return holes A (39) and B (40);

an A water inlet pipe (44) and a water exchange pipe (45) are arranged on the A water tank (36), an A water inlet valve (46) is arranged on the A water inlet pipe (44), and a water exchange valve (47) is arranged on the water exchange pipe (45); the bottom of the A water tank (36) is provided with an A water return pipe (48) and a drain pipe (49), the A water return pipe (48) is provided with an A water return valve (50), the drain pipe (49) is provided with a drain valve (51), and an A electric heater (52), an A liquid level sensor (53) and an A temperature sensor (54) are arranged in the A water tank (36); a B water inlet pipe (55) is arranged on the B water tank (37), and a B water inlet valve (56) is arranged on the B water inlet pipe (55); a B water return pipe (57) is arranged at the bottom of the B water tank (37), a B water return valve (58) is arranged on the B water return pipe (57), and a B electric heater (59), a B liquid level sensor (60) and a B temperature sensor (61) are arranged in the B water tank (37); the A water inlet pipe (44) and the B water inlet pipe (55) are connected with a total water inlet pipe (62), and the total water inlet pipe (62) is provided with a total water inlet valve (63);

the A return pipe (48) and the B return pipe (57) are connected with a main return pipe (64), and the main return pipe (64) is connected with a liquid inlet of the booster pump (38); the liquid outlet of the booster pump (38) is connected with a water changing pipe (45) and a spray pipe (66) through a total water outlet pipe (65), the spray pipe (66) passes through the water return tank (33) to be connected with the other end of the hose, and a spray valve (67) is arranged on the spray pipe (66);

the control box (3) comprises a preparation button (68), a first rinsing button (69), a second rinsing button (70), a drainage button (71), a water changing button (72), a water supplementing button (73) and a controller (74);

the water level sensor (53), the temperature sensor (54), the liquid level sensor (60), the temperature sensor (61), the preparation button (68), the first rinsing button (69), the second rinsing button (70), the water discharging button (71), the water changing button (72) and the water supplementing button (73) are connected with the controller (74) through signal lines, and the controller (74) is connected with the synchronous motor (11), the spray head reversing valve (32), the booster pump (38), the A sealing reversing valve (42), the B sealing reversing valve (43), the A water inlet valve (46), the water changing valve (47), the A water return valve (50), the drain valve (51), the A electric heater (52), the B water inlet valve (56), the B water return valve (58), the B electric heater (59), the total water inlet valve (63) and the spray valve (67) through control lines.

2. The dishwasher rinsing device according to claim 1, characterized in that the spray-head reversing valve (32), the a-seal reversing valve (42), the B-seal reversing valve (43) are two-position four-way solenoid reversing valves.

3. The dishwasher rinsing device according to claim 1 or 2, characterized in that the a-seal diverter valve (42), the B-seal diverter valve (43), the a-inlet valve (46), the water change valve (47), the a-return valve (50), the drain valve (51), the B-inlet valve (56), the B-return valve (58), the total inlet valve (63) are solenoid valves.

4. The dishwasher rinsing device according to claim 1 or 2, characterized in that the controller (74) is a DCS host and the signal lines and the control lines are shielding lines.

5. A dishwasher rinse device as claimed in claim 3, characterized in that the controller (74) is a DCS host and the signal and control lines are shielded lines.

6. A method of operating a dishwasher rinse device as claimed in any one of claims 1 to 5 comprising the steps of:

A. the preparation stage: the staff presses a preparation button (68), the preparation button (68) transmits signals to a controller (74) through a signal wire, the controller (74) controls a total water inlet valve (63), an A water inlet valve (46) and a B water inlet valve (56) to be opened through control wires, tap water is put into an A water tank (36) and a B water tank (37), when the water level in the A water tank (36) reaches a set position, an A liquid level sensor (53) transmits signals to the controller (74) through the signal wire, the controller (74) controls the A water inlet valve (46) to be closed and the A electric heater (52) to heat through the control wires, when the water temperature in the A water tank (36) is heated to a set temperature range value, the A temperature sensor (54) transmits signals to the controller (74) through the signal wire, and the controller (74) controls the A electric heater (52) to stop heating through the control wires; the water inlet valve B (56) and the electric heater B (59) act in the same way;

B. a first rinsing stage: the staff presses a first rinsing button (69), the first rinsing button (69) transmits signals to a controller (74) through a signal wire, the controller (74) controls a booster pump (38) to operate through a control wire, an A water return valve (50) is opened, a synchronous motor (11) rotates forwards, and an A sealing reversing valve (42) is electrified to operate; an air inlet P of the sealing reversing valve (42) is communicated with the air outlet A, the air pushes the telescopic rod to retract, and the sealing plate (41) opens the water return hole (39) of the A; hot water in the water tank A (36) enters the water spraying system (6) from the water return pipe A (48) through the spray valve (67), the synchronous motor (11) drives the sliding block (12) to move at a constant speed from the front end to the rear end of the linear guide rail (8) according to a set moving speed, the water spraying system (6) on the sliding block (12) moves simultaneously, and water is sprayed out from the semicircular spray head (19) to form a uniform inclined water curtain; the water of the spray washing tableware is returned to the water return tank (33) after the water is fallen, and the hot water is returned to the water tank A (36) through the water return hole A (39); after a period of time, when the sliding block (12) reaches a set moving distance, the controller (74) controls the synchronous motor (11) to rotate reversely and the spray head reversing valve (32) to conduct power-on action through the control line, the air inlet P and the air outlet B of the spray head reversing valve (32) are communicated, the gas pushes the baffle to operate, the short shifting piece (20) and the long shifting piece (21) rotate the upper rotating pipe (16), the middle rotating pipe (17) and the lower rotating pipe (18) for a certain angle, so that the inclined water curtain is changed into another angle which is symmetrical with the original angle along the vertical plane; the synchronous motor (11) drives the water spraying system (6) to move at a constant speed from the rear end to the front end of the linear guide rail (8) according to a set moving speed; after a period of time, when the sliding block (12) returns to the original position at the front end, the controller (74) controls the spray head reversing valve (32) to conduct power-on action through a control line, the air inlet P of the spray head reversing valve (32) is communicated with the air outlet A, the air pushes the baffle to operate, the short shifting piece (20) and the long shifting piece (21) rotate the upper rotating pipe (16), the middle rotating pipe (17) and the lower rotating pipe (18) back to the original positions, and the repeated operation of the primary water spraying system (6) is completed; repeating the operation for 3 times; the controller (74) controls the booster pump (38) to stop running through a control line, and the A water return valve (50) is closed;

C. a second rinsing stage: after water on the tableware is drained at intervals, an employee presses a second rinsing button (70), the second rinsing button (70) transmits signals to a controller (74) through a signal wire, the controller (74) controls a booster pump (38) to operate, a water return valve (58) to open, a synchronous motor (11) to rotate forwards, and a sealing reversing valve (42) and a sealing reversing valve (43) to conduct power-on actions through the control wire; an air inlet P of the sealing reversing valve (42) is communicated with an air outlet B, the air pushes the telescopic rod to extend out, and the sealing plate (41) seals the water return hole (39) of the valve A; the air inlet P of the sealing reversing valve (43) is communicated with the air outlet A, the air pushes the telescopic rod to retract, and the sealing plate (41) opens the water return hole (40) of the B; hot water in the water tank B (37) enters the water spraying system (6) from the water return pipe B (57) through the spray valve (67), the synchronous motor (11) drives the sliding block (12) to move at a constant speed from the front end to the rear end of the linear guide rail (8) according to a set moving speed, the water spraying system (6) on the sliding block (12) moves simultaneously, and water is sprayed out from the semicircular spray head (19) to form a uniform inclined water curtain; the water of the spray washing tableware is returned to the water return tank (33) after the water is fallen, and the hot water is returned to the water tank (37) through the water return hole (40); after a period of time, when the sliding block (12) reaches a set moving distance, the controller (74) controls the synchronous motor (11) to rotate reversely and the spray head reversing valve (32) to conduct power-on action through the control line, the air inlet P and the air outlet B of the spray head reversing valve (32) are communicated, the gas pushes the baffle to operate, the short shifting piece (20) and the long shifting piece (21) rotate the upper rotating pipe (16), the middle rotating pipe (17) and the lower rotating pipe (18) for a certain angle, so that the inclined water curtain is changed into another angle which is symmetrical with the original angle along the vertical plane; the synchronous motor (11) drives the water spraying system (6) to move at a constant speed from the rear end to the front end of the linear guide rail (8) according to a set moving speed; after a period of time, when the sliding block (12) returns to the original position at the front end, the controller (74) controls the spray head reversing valve (32) to conduct power-on action through a control line, the air inlet P of the spray head reversing valve (32) is communicated with the air outlet A, the air pushes the baffle to operate, the short shifting piece (20) and the long shifting piece (21) rotate the upper rotating pipe (16), the middle rotating pipe (17) and the lower rotating pipe (18) back to the original positions, and the repeated operation of the primary water spraying system (6) is completed; repeating the operation for 2 times; the controller (74) controls the booster pump (38) to stop running and the B water return valve (58) to be closed through a control line; after the water on the tableware is drained at intervals, a controller (74) controls the closing of the main water inlet valve (63) and the spray valve (67) through control lines, and the B seal reversing valve (43) is electrified; the air inlet P of the sealing reversing valve (43) is communicated with the air outlet B, the air pushes the telescopic rod to extend out, and the sealing plate (41) seals the water return hole (40) of the B; finishing one-time rinsing work; and after finishing two to three times of automatic cleaning work, carrying out water changing work.

7. The method of claim 6, wherein the set temperature range is 70-80 ℃, the synchronous motor (11) power is 750w, the a electric heater (52) power is 3KW, the b electric heater (59) power is 3KW, and the total water storage amount is 80Kg.

8. The method of claim 6 or 7, wherein the set moving distance is 1780mm and the set moving speed is 130-150mm/s.