阅读说明：本技术 一种售卖机自检清洗系统 (Sell quick-witted self-checking cleaning system ) 是由 张苑淼 杨序贵 吴道玉 田志峰 于 2020-07-10 设计创作，主要内容包括：本发明涉及一种售卖机自检清洗系统,包括水箱、粉碎腔、过滤腔、废水箱和控制系统；所述控制系统包括温度控制模块,用以控制所述水箱内的温度；流量控制模块,用以控制所述水箱内流出水的流量控制；重量控制模块,用以检测所述粉碎腔内的咖啡原料的重量；所述控制系统通过对所述过滤腔的进水及出水流量的检测数据差值,根据不同检测数据差值选用不同清洗力度的参数矩阵进行清洗。通过对不同清理部件的不同污垢程度,来参数矩阵的选择,通过最优组合的选择达到清理的目的的同时更加节省电源和水源。(The invention relates to a vending machine self-checking cleaning system which comprises a water tank, a crushing cavity, a filtering cavity, a waste water tank and a control system, wherein the water tank is connected with the filtering cavity; the control system comprises a temperature control module used for controlling the temperature in the water tank; the flow control module is used for controlling the flow control of the effluent in the water tank; the weight control module is used for detecting the weight of the coffee raw materials in the crushing cavity; the control system selects parameter matrixes with different cleaning forces for cleaning according to different detection data difference values through detecting the water inlet flow and the water outlet flow of the filter cavity. Through different dirt degrees of different cleaning components, the parameter matrix is selected, and the power supply and the water source are saved while the cleaning purpose is achieved through the selection of the optimal combination.)

1. A vending machine self-checking cleaning system is characterized by comprising a water tank, a crushing cavity, a filtering cavity, a waste water tank and a control system; the control system comprises

The temperature control module is used for controlling the temperature in the water tank;

the flow control module is used for controlling the flow control of the effluent in the water tank;

the weight control module is used for detecting the weight of the coffee raw materials in the crushing cavity;

wherein, a heater and a water pump are arranged in the water tank, and water in the water tank flows to the crushing cavity and the filtering cavity respectively; a water tank temperature sensor is arranged in the water tank, and is used for detecting the water tank temperature as ts and the water tank flow sensor in real time, and is used for detecting the water tank flow as qs in real time; a first flow sensor is arranged on a water inlet pipeline outside the crushing cavity, the water inlet flow of the crushing cavity detected in real time is qw1, a second flow sensor is arranged on a water outlet pipeline outside the crushing cavity, and the water outlet flow of the crushing cavity detected in real time is qw 2; a third flow sensor is arranged on a water inlet pipeline outside the filter cavity, the water inlet flow of the filter cavity detected in real time is qw3, a fourth flow sensor is arranged on a water outlet pipeline outside the filter cavity, and the water outlet flow of the filter cavity detected in real time is qw 4;

setting parameter matrixes X1(t1, q1), X2(t2, q2), X3(t3, q3), X4(t4, q4) and X5(t5, q5) of different cleaning force in the control system, wherein t1 represents the temperature of water flow of the cleaning vending machine based on the matrix X1, and q1 represents the water flow of the cleaning vending machine based on the matrix X1; t2 represents the matrix X2 wash merchandiser water flow temperature, q2 represents the matrix X2 wash merchandiser water flow rate; t3 represents the matrix X3 wash merchandiser water flow temperature, q3 represents the matrix X3 wash merchandiser water flow rate; t4 represents the matrix X4 wash merchandiser water flow temperature, q4 represents the matrix X4 wash merchandiser water flow rate; t5 represents the matrix X5 wash merchandiser water flow temperature, q5 represents the matrix X5 wash merchandiser water flow rate;

after the vending machine finishes the brewing process, the control system selects and uses parameter matrixes with different cleaning force to clean according to the detection data difference value of the water inlet flow and the water outlet flow of the crushing cavity and the detection data difference value of the water inlet flow and the water outlet flow of the filter cavity and different detection data difference values.

2. The vending machine self-test cleaning system of claim 1, wherein a weight sensor is disposed within the grinding chamber for detecting a weight statistic of coffee materials within the grinding chamber, and wherein the vending machine is cleaned when the cumulative weight of the coffee materials exceeds a predetermined value; the cleaning process of the vending machine includes:

detecting and judging a difference value between the water inlet flow rate qw1 and the water outlet flow rate qw2 in the crushing cavity;

detecting and judging a difference value between the water inlet flow rate qw3 and the water outlet flow rate qw4 in the filtering cavity;

selecting parameter matrixes Xn (tn, qn) with different cleaning strengths for cleaning different flow difference values, wherein n is 1, 2, 3, 4 or 5;

judging whether to need to wash again according to the washing result until the washing process is finished;

wherein, the parameter matrix X (t1, q1), X2(t2, q2), X3(t3, q3), X4(t4, q4) and X5(t5, q5) of different cleaning strengths, t1< t2< t3< t4< t5, and q1< q2< q3< q4< q 5.

3. The vending machine self-cleaning system of claim 2, wherein the vending machine is determined not to require cleaning if qw1 equals qw2 and qw3 equals qw 4.

4. The vending machine self-cleaning system according to claim 2, wherein if qw1-qw2 is 0.9 qw1, determining that the vending machine is to clean the grinding chamber with a cleaning force based on the first parameter matrix; if qw1-qw2 is 0.7-qw 1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the second parameter matrix; if qw1-qw2 is 0.5 × qw1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the third parameter matrix; if qw1-qw2 is 0.3 × qw1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the fourth parameter matrix; and if qw1-qw2 is 0.1-qw 1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the fifth parameter matrix.

5. The vending machine self-cleaning system according to claim 2, wherein if qw3-qw4 is 0.9 qw3, determining that the vending machine is to clean the filter chamber with a cleaning force based on the first parameter matrix; if qw3-qw4 is 0.9 × qw3, judging that the vending machine cleans the filter cavity by adopting the cleaning force of the second parameter matrix; if qw3-qw4 is 0.9 × qw3, judging that the vending machine cleans the filter cavity by adopting the cleaning force of the third parameter matrix; if qw3-qw4 is 0.9 × qw3, judging that the vending machine cleans the filter cavity by adopting the cleaning force of the fourth parameter matrix; and if qw3-qw4 is 0.9-qw 3, judging that the vending machine cleans the filter cavity by adopting the cleaning force of the fifth parameter matrix.

6. The vending machine self-test cleaning system of claim 2, wherein said re-cleaning comprises: after the vending machine is cleaned, the control system detects and judges the water flow of inlet water and outlet water of the crushing cavity and the filtering cavity, if qw1 is not equal to qw2 and qw3 is not equal to qw4, the vending machine is judged to need to be cleaned again, and the cleaning process is finished until detected qw1 is equal to qw2 after the cleaning is finished and qw3 is equal to qw 4; if sell the machine and wash the back, through to smash the chamber with the discharge of the water of intaking of filter chamber and play water detects the judgement, if qw1 equals qw2, and when qw3 equals qw4, judge sell the machine and need not wash once more, the cleaning process is accomplished.

7. The self-checking and cleaning system of vending machine as claimed in claim 1, wherein a water pump is provided above the water tank, an inlet end of the water pump communicates with the inside of the water tank, an outlet end of the water pump is connected with one end of a first connecting pipe and a second connecting pipe, a crushing chamber is provided on the right side of the water tank, the other end of the first connecting pipe communicates with the crushing chamber and is provided with a first rotary nozzle, the first connecting pipe is provided with a first electromagnetic valve, the left side of the bottom of the crushing chamber is provided with a through hole and is connected with one end of a second electromagnetic valve, a filter chamber is provided below the water tank, the other end of the second electromagnetic valve communicates with the filter chamber, the other end of the second connecting pipe communicates with the filter chamber and is provided with a second rotary nozzle, the second connecting pipe is provided with a third electromagnetic valve, a filter, the coffee machine is characterized in that a through hole is formed in the bottom of the filter screen and is connected with a fourth electromagnetic valve, a through hole penetrating through the filter screen is formed in the bottom of the filter chamber and is connected with an inlet end of an electromagnetic directional valve, a waste water tank is arranged below the right side of the filter chamber, one outlet end of the electromagnetic directional valve is communicated with the waste water tank, the other outlet end of the electromagnetic directional valve is connected with a coffee outlet, and a control panel is arranged on the left side of the filter chamber.

8. The vending machine self-testing cleaning system according to claim 7, wherein a motor is provided below the grinding chamber and above the waste water tank, a shaft of the motor passing through a lower side wall of the grinding chamber and having a blade attached thereto.

9. The vending machine self-checking cleaning system according to claim 7, wherein a first level sensor is provided at a bottom of an inner side wall of the water tank, and a second level sensor is provided at a top of an inner side wall of the waste water tank.

10. The vending machine self-checking cleaning system according to claim 7, wherein the filter screen is clamped in the filter cavity, a gap is formed between the filter screen and the filter cavity, one end of the fourth electromagnetic valve is communicated with the filter screen, and the other end of the fourth electromagnetic valve is communicated with the gap between the filter screen and the filter cavity; the water tank and the waste water tank are all clamped in the vending machine.

Technical Field

The invention relates to the technical field of vending machine cleaning, in particular to a vending machine self-checking cleaning system.

Background

Nowadays, more and more people like to drink self-made beverages, so that the types of self-made beverage machines are more and more, most of brewed beverages are made by vending machines, the beverages are more and more complicated to clean, how to set a self-checking cleaning system is to meet the requirement of daily people on making beverages by themselves and reduce the complexity of cleaning, at present, most beverage machines combine grinding, grinding and boiling functions into a whole, so that the beverages are more convenient to make, the principle of the beverage machines is that a grinding cavity is basically provided with a filter screen, and one mode is that beverage raw materials are ground to a certain fineness and then enter a beverage extraction cavity after passing through the filter screen on the grinding cavity under the action of centrifugal force, and after a heating pipe works, water flows into the beverage extraction cavity after being heated through a siphon effect to make the beverages; smash chamber and filter screen, the lid all needs to wash, and the washing part is many, and the washing of filter screen is comparatively loaded down with trivial details moreover. And at drink machine self-cleaning's in-process, the washing course of the jam condition of different pipelines is the same with the washing course of different drink volume, does not have unified control standard in the selection to discharge and rivers temperature, is a very big waste to water resource and electric resource, how to carry out the automatic selection and the judgement of different washing modes through adjustment discharge and rivers temperature to the different dirt jam conditions of selling the machine, has become the problem of treating urgently.

Disclosure of Invention

Therefore, the invention provides a vending machine self-checking cleaning system which is used for overcoming the problems of the automatic cleaning checking mode and the cleaning mode selection of the vending machine in the prior art.

In order to achieve the purpose, the invention provides a vending machine self-checking cleaning system, which comprises a water tank, a crushing cavity, a filtering cavity, a waste water tank and a control system, wherein the water tank is connected with the crushing cavity; the control system comprises

The temperature control module is used for controlling the temperature in the water tank;

the flow control module is used for controlling the flow control of the effluent in the water tank;

the weight control module is used for detecting the weight of the coffee raw materials in the crushing cavity;

wherein, a heater and a water pump are arranged in the water tank, and water in the water tank flows to the crushing cavity and the filtering cavity respectively; a water tank temperature sensor is arranged in the water tank, and is used for detecting the water tank temperature as ts and the water tank flow sensor in real time, and is used for detecting the water tank flow as qs in real time; a first flow sensor is arranged on a water inlet pipeline outside the crushing cavity, the water inlet flow of the crushing cavity detected in real time is qw1, a second flow sensor is arranged on a water outlet pipeline outside the crushing cavity, and the water outlet flow of the crushing cavity detected in real time is qw 2; a third flow sensor is arranged on a water inlet pipeline outside the filter cavity, the water inlet flow of the filter cavity detected in real time is qw3, a fourth flow sensor is arranged on a water outlet pipeline outside the filter cavity, and the water outlet flow of the filter cavity detected in real time is qw 4;

setting parameter matrixes X1(t1, q1), X2(t2, q2), X3(t3, q3), X4(t4, q4) and X5(t5, q5) of different cleaning force in the control system, wherein t1 represents the temperature of water flow of the cleaning vending machine based on the matrix X1, and q1 represents the water flow of the cleaning vending machine based on the matrix X1; t2 represents the matrix X2 wash merchandiser water flow temperature, q2 represents the matrix X2 wash merchandiser water flow rate; t3 represents the matrix X3 wash merchandiser water flow temperature, q3 represents the matrix X3 wash merchandiser water flow rate; t4 represents the matrix X4 wash merchandiser water flow temperature, q4 represents the matrix X4 wash merchandiser water flow rate; t5 represents the matrix X5 wash merchandiser water flow temperature, q5 represents the matrix X5 wash merchandiser water flow rate;

after the vending machine finishes the brewing process, the control system selects and uses parameter matrixes with different cleaning force to clean according to the detection data difference value of the water inlet flow and the water outlet flow of the crushing cavity and the detection data difference value of the water inlet flow and the water outlet flow of the filter cavity and different detection data difference values.

Furthermore, a weight sensor is arranged in the grinding cavity and used for detecting the weight statistics of the coffee raw materials in the grinding cavity, and when the accumulated weight of the coffee raw materials exceeds a preset value, the vending machine is cleaned; the cleaning process of the vending machine includes:

detecting and judging a difference value between the water inlet flow rate qw1 and the water outlet flow rate qw2 in the crushing cavity;

detecting and judging a difference value between the water inlet flow rate qw3 and the water outlet flow rate qw4 in the filtering cavity;

selecting parameter matrixes Xn (tn, qn) with different cleaning strengths for cleaning different flow difference values, wherein n is 1, 2, 3, 4 or 5;

judging whether to need to wash again according to the washing result until the washing process is finished;

wherein, the parameter matrix X (t1, q1), X2(t2, q2), X3(t3, q3), X4(t4, q4) and X5(t5, q5) of different cleaning strengths, t1< t2< t3< t4< t5, and q1< q2< q3< q4< q 5.

Further, if qw1 equals qw2 and qw3 equals qw4, the vending machine is judged not to need cleaning.

Further, when the qw1-qw2 is 0.9-qw 1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the first parameter matrix; if qw1-qw2 is 0.7-qw 1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the second parameter matrix; if qw1-qw2 is 0.5 × qw1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the third parameter matrix; if qw1-qw2 is 0.3 × qw1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the fourth parameter matrix; and if qw1-qw2 is 0.1-qw 1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the fifth parameter matrix.

Further, when the qw3-qw4 is 0.9-qw 3, judging that the vending machine cleans the filter cavity by adopting the cleaning force of the first parameter matrix; if qw3-qw4 is 0.9 × qw3, judging that the vending machine cleans the filter cavity by adopting the cleaning force of the second parameter matrix; if qw3-qw4 is 0.9 × qw3, judging that the vending machine cleans the filter cavity by adopting the cleaning force of the third parameter matrix; if qw3-qw4 is 0.9 × qw3, judging that the vending machine cleans the filter cavity by adopting the cleaning force of the fourth parameter matrix; and if qw3-qw4 is 0.9-qw 3, judging that the vending machine cleans the filter cavity by adopting the cleaning force of the fifth parameter matrix.

Further, the re-washing comprises: after the vending machine is cleaned, detecting and judging the water flow of inlet water and outlet water of the crushing cavity and the filtering cavity, and if qw1 is not equal to qw2 and qw3 is not equal to qw4, judging that the vending machine needs to be cleaned again; after the vending machine is cleaned, the water flow detection and judgment of the water inflow and outflow of the crushing cavity and the filtering cavity are carried out, if qw1 is equal to qw2 and qw3 is equal to qw4, the vending machine is judged not to be cleaned again, and the cleaning process is completed.

Furthermore, a water pump is arranged above the water tank, the inlet end of the water pump is communicated with the inside of the water tank, the outlet end of the water pump is connected with one end of a first connecting pipe and one end of a second connecting pipe, the right side of the water tank is provided with a crushing cavity, the other end of the first connecting pipe is communicated with the crushing cavity and is provided with a first rotary spray nozzle, the first connecting pipe is provided with a first electromagnetic valve, the left side of the bottom of the crushing cavity is provided with a through hole and is connected with one end of a second electromagnetic valve, a filter cavity is arranged below the water tank, the other end of the second electromagnetic valve is communicated with the filter cavity, the other end of the second connecting pipe is communicated with the filter cavity and is provided with a second rotary spray nozzle, the second connecting pipe is provided with a third electromagnetic valve, a filter screen is arranged in the filter, the coffee machine is characterized in that a through hole penetrating through the coffee machine is formed in the bottom of the filter chamber, an inlet end of an electromagnetic reversing valve is connected to the bottom of the filter chamber, a waste water tank is arranged below the right side of the filter chamber, one outlet end of the electromagnetic reversing valve is communicated with the waste water tank, the other outlet end of the electromagnetic reversing valve is connected with a coffee outlet, and a control panel is arranged on the left side of the filter chamber.

Further, a motor is arranged below the crushing cavity and above the waste water tank, and a rotating shaft of the motor penetrates through the lower side wall of the crushing cavity and is connected with a blade.

Further, the bottom of the inner side wall of the water tank is provided with a first water level sensor, and the top of the inner side wall of the waste water tank is provided with a second water level sensor.

Furthermore, the filter screen is clamped in the filter cavity, a gap is formed between the filter screen and the filter cavity, one end of the fourth electromagnetic valve is communicated with the inside of the filter screen, and the other end of the fourth electromagnetic valve is communicated between the filter screen and the gap of the filter cavity; the water tank and the waste water tank are all clamped in the vending machine.

Compared with the prior art, the vending machine self-checking cleaning system has the advantages that the control system comprises the temperature control module, the flow control module and the weight control module, different cleaning modes are selected according to different cleaning degrees of the vending machine, and different cleaning effects are achieved by accurately controlling the temperature and the flow of water flow in the flushing process of the vending machine.

Particularly, when the vending machine needs to be cleaned, the control system judges that the parameter matrixes with different cleaning strengths are selected for different crushing cavities for cleaning through the detection data difference value of the water inlet flow and the water outlet flow of the crushing cavities; meanwhile, the control system selects parameter matrixes with different cleaning force according to different detection data difference values to clean the filter cavity through the detection data difference values of the water inlet flow and the water outlet flow of the filter cavity. Through different dirt degrees of different cleaning components, the parameter matrix is selected, and the power supply and the water source are saved while the cleaning purpose is achieved through the selection of the optimal combination.

Particularly, a weight sensor is arranged in the crushing cavity, statistics is carried out by detecting the weight of the sold beverage raw materials in the crushing cavity, and when the accumulated weight of the sold beverage raw materials exceeds a preset value, the vending machine is cleaned; the cleaning time of selling the machine is judged through the use weight of selling the beverage raw materials to selling the machine to realize in the quantization that the different individualized cleaning scheme to selling the machine satisfies the different frequency of use that sell the machine and can reach best clearance effect simultaneously.

Furthermore, parameter information of different matrixes is preset in the control system, different cleaning effects are achieved through selection of the different matrixes, different cleaning effects are achieved through cleaning schemes with different cleaning degrees corresponding to the different matrixes, and therefore different dirt degrees of different vending machines can achieve the same cleaning effect. Meanwhile, through the arrangement of different matrixes, the selection of different temperatures in the matrixes and the control of water flow, the aims of saving water flow and reducing electric energy consumption are fulfilled.

Particularly, a re-cleaning setting is arranged in the control system, after the first cleaning is completed, if the cleaning standard is not met, namely qw1 is not equal to qw2 and qw3 is not equal to qw4, the vending machine is cleaned again until qw1 is equal to qw2 and qw3 is equal to qw4, the cleaning of the vending machine is finished, and the final cleaning effect of the vending machine is ensured through the cleaning inspection setting. When the judgment is made, if qw1-qw2 is 0.9-qw 1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the first parameter matrix; if qw1-qw2 is 0.7-qw 1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the second parameter matrix; if qw1-qw2 is 0.5 × qw1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the third parameter matrix; if qw1-qw2 is 0.3 × qw1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the fourth parameter matrix; and if qw1-qw2 is 0.1-qw 1, judging that the vending machine cleans the crushing cavity by adopting the cleaning force of the fifth parameter matrix.

In particular, the parameter matrix X (t1, q1), X2(t2, q2), X3(t3, q3), X4(t4, q4) and X5(t5, q5) for different washing strengths, t1< t2< t3< t4< t5, and q1< q2< q3< q4< q 5. Through the stepped arrangement of the water tank temperatures t1, t2, t3, t4 and t5, the output power of the heater is reduced while the same cleaning effect is achieved on different dirt, the service life of the heater is prolonged, the damage of different temperatures to the crushing cavity, the filtering cavity and the pipeline is different, and the service life of the vending machine is prolonged through the arrangement of reducing the temperatures; q1, q2, q3, q4 and q 5's cascaded setting through the water tank flow, adapt to the degree of the needs clearance of selling the machine, avoid the waste that causes the water resource in the clearance process in selecting, carry out reasonable distribution and utilization to the water resource of water tank through the cascaded setting of discharge moreover, satisfy the selection of selling the different clearance degree of machine, the demand of different discharge. Through the clearance demand to the difference of selling the machine, through the selection of cascaded clearance water temperature and flow, also can save electric resource and water resource when satisfying the clearance effect, thereby sell the life of machine through the output extension that reduces the machine of selling.

Furthermore, the rotary joints are arranged at the tops of the crushing cavity and the filtering cavity, so that the crushing cavity and the filtering cavity can be rotated and cleaned under the action of water flow, residual coffee in the crushing cavity and the filtering cavity can be cleaned, and the taste of the coffee can be guaranteed. But also can sell the machine at coffee preparation back self-cleaning to store the waste water tank with the washing water, need not manual operation, reinforcing user experience.

Drawings

FIG. 1 is a schematic diagram of a vending machine self-test cleaning system according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic structural view of a vending machine self-inspection cleaning system A according to an embodiment of the present invention;

fig. 3 is an enlarged schematic structural view of a vending machine self-checking cleaning system B according to the embodiment of the present invention.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 3, the present invention provides a vending machine self-checking cleaning system, and more particularly, an embodiment of the present invention provides a vending machine self-checking cleaning system, which is capable of making and vending coffee, and includes a water tank 1, a grinding chamber 5, a filtering chamber 9, a waste water tank 141, and a control system; the control system comprises a temperature control module, a temperature sensor and a temperature control module, wherein the temperature control module is used for controlling the temperature in the water tank 1 and comprises the water tank 1 temperature sensor; the flow control module is used for controlling the flow control of the effluent in the water tank 1 and comprises a water tank 1 flow sensor, a first flow sensor, a second flow sensor, a third flow sensor and a fourth flow sensor; a weight control module for detecting the weight of the coffee material in the grinding chamber 5.

Wherein, a heater 17 and a water pump 2 are arranged in the water tank 1, and the water in the water tank 1 respectively flows to the crushing cavity 5 and the filtering cavity 9; a temperature sensor of the water tank 1 is arranged in the water tank 1, the temperature sensor of the water tank 1 is used for detecting the temperature of the water tank 1 as ts and a flow sensor of the water tank 1 in real time, and the flow of the water tank 1 is detected as qs in real time; a first flow sensor is arranged on a water inlet pipeline outside the crushing cavity 5, the water inlet flow of the crushing cavity 5 detected in real time is qw1, a second flow sensor is arranged on a water outlet pipeline outside the crushing cavity 5, and the water outlet flow of the crushing cavity 5 detected in real time is qw 2; a third flow sensor is arranged on a water inlet pipeline outside the filter cavity 9, wherein the water inlet flow of the filter cavity 9 detected in real time is qw3, and a fourth flow sensor is arranged on a water outlet pipeline outside the filter cavity 9, wherein the water outlet flow of the filter cavity 9 detected in real time is qw 4;

setting parameter matrixes X1(t1, q1), X2(t2, q2), X3(t3, q3), X4(t4, q4) and X5(t5, q5) of different washing strengths in the control system, wherein t1 represents the temperature of water flow of the matrix X1 washing coffee machine, and q1 represents the water flow of the matrix X1 washing coffee machine; t2 represents the temperature of the water flow for the matrix X2 coffee machine washing, q2 represents the water flow for the matrix X2 coffee machine washing; t3 represents the temperature of the water flow for the matrix X3 coffee machine washing, q3 represents the water flow for the matrix X3 coffee machine washing; t4 represents the temperature of the water flow for the matrix X4 coffee machine washing, q4 represents the water flow for the matrix X4 coffee machine washing; t5 represents the temperature of the water flow for the matrix X5 coffee machine washing, q5 represents the water flow for the matrix X5 coffee machine washing; after the coffee machine finishes the brewing process, the control system selects parameter matrixes with different cleaning forces for cleaning according to different detection data difference values according to the detection data difference values of the water inlet flow and the water outlet flow of the crushing cavity 5 and the detection data difference values of the water inlet flow and the water outlet flow of the filter cavity 9.

Specifically, in the embodiment of the present invention, a weight sensor is disposed in the grinding chamber 5, and is used for detecting weight statistics of the coffee materials in the grinding chamber 5, and when the accumulated weight of the coffee materials exceeds a preset value, the coffee machine is cleaned; the washing process of the coffee maker comprises the following steps: detecting and judging a difference value between the water inlet flow rate qw1 and the water outlet flow rate qw2 in the crushing cavity 5; detecting and judging a difference value between the inflow rate qw3 and the outflow rate qw4 in the filter chamber 9; selecting parameter matrixes Xn (tn, qn) with different cleaning strengths for cleaning different flow difference values, wherein n is 1, 2, 3, 4 or 5; and judging whether to need to wash again according to the washing result until the washing process is finished.

Wherein, the parameter matrix X (t1, q1), X2(t2, q2), X3(t3, q3), X4(t4, q4) and X5(t5, q5) of different cleaning strengths, t1< t2< t3< t4< t5, and q1< q2< q3< q4< q 5.

If qw1 is equal to qw2 and qw3 is equal to qw4, it is judged that the coffee maker does not require washing.

If qw1 is not equal to qw2 and qw3 is not equal to qw4, it is determined that the coffee maker needs to be washed.

When the qw1-qw2 is 0.9-qw 1, judging that the coffee machine adopts the cleaning force of the first parameter matrix to clean the crushing cavity 5; if qw1-qw2 is 0.7 × qw1, judging that the coffee machine cleans the crushing cavity 5 by using the cleaning force of the second parameter matrix; if qw1-qw2 is 0.5 × qw1, judging that the coffee machine cleans the crushing cavity 5 by using the cleaning force of the third parameter matrix; if qw1-qw2 is 0.3 × qw1, judging that the coffee machine cleans the crushing cavity 5 by adopting the cleaning force of the fourth parameter matrix; and if qw1-qw2 is 0.1-qw 1, judging that the coffee machine cleans the crushing cavity 5 by using the cleaning force of the fifth parameter matrix.

If qw3-qw4 is 0.9 × qw3, judging that the coffee machine cleans the filter cavity 9 by using the cleaning force of the first parameter matrix; if qw3-qw4 is 0.9 × qw3, judging that the coffee machine cleans the filter cavity 9 by adopting the cleaning force of the second parameter matrix; if qw3-qw4 is 0.9 × qw3, judging that the coffee machine cleans the filter cavity 9 by using the cleaning force of the third parameter matrix; if qw3-qw4 is 0.9 × qw3, judging that the coffee machine cleans the filter cavity 9 by adopting the cleaning force of the fourth parameter matrix; and if qw3-qw4 is 0.9 × qw3, judging that the coffee machine cleans the filter chamber 9 by using the cleaning force of the fifth parameter matrix.

After the coffee machine is cleaned, the control system detects and judges the water flow rates of inlet water and outlet water of the crushing cavity 5 and the filter cavity 9, if qw1 is not equal to qw2 and qw3 is not equal to qw4, the coffee machine is judged to need to be cleaned again, and the cleaning process is finished until detecting that qw1 is equal to qw2 and qw3 is equal to qw4 after the cleaning is finished; after the coffee machine is cleaned, the water flow of the inlet water and the outlet water of the crushing cavity 5 and the filtering cavity 9 is detected and judged, if qw1 is equal to qw2 and qw3 is equal to qw4, the coffee machine is judged not to be cleaned again, and the cleaning process is finished.

Specifically, in the embodiment of the present invention, the water tank 1 is used for storing water for making coffee and cleaning a coffee machine, the water pump 2 is arranged above the water tank 1, an inlet end of the water pump 2 is communicated with the inside of the water tank 1, an outlet end of the water pump 2 is connected with one end of a first connecting pipe 3 and one end of a second connecting pipe 4, the right side of the water tank 1 is provided with a grinding chamber 5 for grinding coffee beans and making coffee, the other end of the first connecting pipe 3 is communicated with the grinding chamber 5 and is provided with a first rotary nozzle 6, the first connecting pipe 3 is used for conveying water into the grinding chamber 5, the first rotary nozzle 6 is used for spraying water into the grinding chamber 5 without dead angles, the water can be used for making coffee and cleaning the grinding chamber 5, the first connecting pipe 3 is provided with a first electromagnetic valve 7 for controlling the connection and disconnection of the connecting pipe 3, the left side of the bottom of the grinding chamber 5 is provided with a through hole and connected with one end of a second, a filter chamber 9 is arranged below the water tank 1, the other end of the second electromagnetic valve 8 is communicated with the filter chamber 9, after coffee is made, the second electromagnetic valve 8 is opened to ensure that water for cleaning the crushing chamber 5 can flow out through the second electromagnetic valve 8, the other end of the second connecting pipe 4 is communicated into the filter chamber 9 and is provided with a second rotary nozzle 12, the second connecting pipe 4 is used for conveying water into the filter chamber 9, the second rotary nozzle 12 is used for cleaning the filter chamber 9, the water pump 2 is used for conveying water in the water tank 1 into the crushing chamber 5 and the filter chamber 9, the second connecting pipe 4 is provided with a third electromagnetic valve 11 for controlling the on-off of the second connecting pipe 4, a filter screen 10 is arranged in the filter chamber 9, the bottom of the filter screen 10 is provided with a through hole and connected with a fourth electromagnetic valve 15, the bottom of the filter chamber 9 is provided with a through hole and connected with an inlet end of an electromagnetic directional valve 13, the right side below of filter chamber 9 is equipped with waste water tank 14, an exit end and the waste water tank 14 intercommunication of electromagnetic directional valve 13, the coffee export is connected to another exit end of electromagnetic directional valve 13, and when the coffee machine was in the coffee making state, electromagnetic directional valve 13 intercommunication coffee export guaranteed the normal outflow of coffee, and when the coffee machine was in the cleaning state, electromagnetic directional valve 13 intercommunication waste water tank 14 made the water after wasing in the waste water tank, the left side of filter chamber 9 is equipped with control panel 20 for guarantee cleaning function normal use.

In particular, in the embodiment of the present invention, the grinding chamber 5 is also an extraction chamber of a coffee machine, a motor 16 is arranged below the grinding chamber 5 and above the waste water tank 14, a rotating shaft of the motor 16 penetrates through the lower side wall of the grinding chamber 5 and is connected with a blade, and the motor 14 can rotate when the grinding chamber 5 is cleaned, so that the cleaning of the grinding chamber 5 is cleaner.

Specifically, in the embodiment of the invention, the water tank 1 is internally provided with the heater 17, the water tank 1 and the waste water tank 14 are both clamped in the coffee machine, the heater 17 is used for heating water in the water tank 1, normal making of coffee is ensured, meanwhile, the hot water cleaning effect is better, and the water tank 1 and the waste water tank 14 can be detached, so that water changing and water pouring are convenient.

Specifically, in the embodiment of the present invention, a first water level sensor 18 is disposed at the bottom of the inner side wall of the water tank 1, and a second water level sensor 19 is disposed at the top of the inner side wall of the waste water tank 14, so as to monitor the water levels in the water tank 1 and the waste water tank 14, and ensure the normal use of the coffee maker.

Specifically, in the embodiment of the present invention, the filter screen 10 is clamped in the filter cavity 9, a gap is formed between the filter screen 10 and the filter cavity 9, one end of the fourth electromagnetic valve 15 is communicated with the inside of the filter screen 10, the other end of the fourth electromagnetic valve 15 is communicated with the gap between the filter screen 10 and the filter cavity 9, and the fourth electromagnetic valve 15 is opened during cleaning, so that the coffee residues in the filter screen 10 can be discharged with water, thereby achieving the purpose of cleaning.

Specifically, in the embodiment of the present invention, the control panel 20 is electrically connected to the water pump 2, the first electromagnetic valve 7, the second electromagnetic valve 8, the third electromagnetic valve 11, the fourth electromagnetic valve 15, the electromagnetic directional valve 13, the motor 16, the first water level sensor 18, and the second water level sensor 19, so as to ensure that the cleaning operation is performed normally.

The working principle is as follows: when the coffee machine is cleaned, the control system compares the difference value of the water inlet flow rate qw1 of the crushing cavity and the water outlet flow rate qw2 of the crushing cavity, selects parameter matrixes with different cleaning forces, and judges that the coffee machine cleans the crushing cavity by adopting the cleaning force of the first parameter matrix when the qw1-qw2 is 0.9 × qw 1; if qw1-qw2 is 0.7-qw 1, judging that the coffee machine cleans the crushing cavity by adopting the cleaning force of the second parameter matrix; if qw1-qw2 is 0.5 × qw1, judging that the coffee machine cleans the crushing cavity by adopting the cleaning force of the third parameter matrix; if qw1-qw2 is 0.3 × qw1, judging that the coffee machine cleans the crushing cavity by adopting the cleaning force of the fourth parameter matrix; and if qw1-qw2 is 0.1-qw 1, judging that the coffee machine cleans the crushing cavity by using the cleaning force of the fifth parameter matrix.

The control system compares the flow difference value of the inflow water flow of the filter cavity qw3 with the outflow water flow of the filter cavity qw4, selects parameter matrixes with different cleaning forces, and judges that the coffee machine cleans the filter cavity by the cleaning force of the first parameter matrix if qw3-qw4 is 0.9 × qw 3; if qw3-qw4 is 0.9 × qw3, judging that the coffee machine cleans the filter cavity by adopting the cleaning force of the second parameter matrix; if qw3-qw4 is 0.9 × qw3, judging that the coffee machine cleans the filter cavity by adopting the cleaning force of the third parameter matrix; if qw3-qw4 is 0.9 × qw3, judging that the coffee machine cleans the filter cavity by adopting the cleaning force of the fourth parameter matrix; and if qw3-qw4 is 0.9-qw 3, judging that the coffee machine cleans the filter cavity by adopting the cleaning force of the fifth parameter matrix.

After selecting the parameter matrixes of different cleaning forces, the cleaning process of the crushing cavity is as follows: the first electromagnetic valve 7 is opened, the third electromagnetic valve 11 is opened simultaneously, the water pump 2 is started, water in the water tank 1 is pumped out and reaches the first rotary spray head 6 through the first connecting pipe 3, the first rotary spray head 6 rotates and washes the crushing cavity 5, the motor 16 rotates to enable the cleaning effect of the crushing cavity 5 to be better, the second rotary spray head 12 rotates and cleans the filter screen 10, the second electromagnetic valve 8 is opened after the preset time of washing, the fourth electromagnetic valve 15 is opened, the electromagnetic reversing valve 13 is communicated with the waste water tank 14, cleaning water in the crushing cavity 5 flows into the filter screen 10 through the second electromagnetic valve 8, then flows into a gap between the filter cavity 9 and the filter screen 10 through the fourth electromagnetic valve 15, coffee residues in the filter screen 10 are taken out, then the cleaning water flows into the waste water tank 14 through the electromagnetic reversing valve 13, and cleaning of the crushing cavity 5 is completed.

And then according to the selected different cleaning force parameter matrixes, the cleaning process of the filter cavity 9 is as follows: and opening the third electromagnetic valve 8 and the fourth electromagnetic valve 15, communicating the electromagnetic directional valve 13 with the waste water tank 14, starting the water pump 2, pumping water in the water tank 1 out and reaching the second rotary spray head 12 through the second connecting pipe 4, rotating the second rotary spray head 12 and washing the filter cavity 9, and allowing cleaning water in the filter cavity 9 to flow into the waste water tank 14 through the electromagnetic directional valve 13 to complete cleaning of the filter cavity 9.

The above process can be carried out simultaneously, but it must be ensured that the cleaning of the filter chamber is completed after the cleaning of the crushing chamber is completed.

After cleaning is finished, the first water level sensor 18 and the second water level sensor 19 respectively monitor the water levels in the water tank 1 and the waste water tank 14, when the water level in the water tank 1 is too low and/or the water level in the waste water tank 14 is too high, the coffee machine gives an alarm to remind a user of adding or pouring water.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.