CN113143014A

CN113143014A - Full-automatic coffee grinder and coffee grinding method

Info

Publication number: CN113143014A
Application number: CN202110515585.0A
Authority: CN
Inventors: 吴磊; 王芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-07-23

Abstract

The invention relates to the technical field of full-automatic coffee machines, and discloses a full-automatic coffee grinder and a coffee grinding method. This coffee machine can dismantle and set up the mill beans device for it is more convenient to grind beans device washing and repair, in addition, through setting up the cartridge filter in mill beans device shell inside, makes at the coffee grinding in-process, and the coffee powder after having ground falls to mill beans device shell inside, and the coffee beans of the incomplete grinding process can continue to stay in the cartridge filter and grind, makes the coffee bean leaf of grinding carry out accurate grinding to the coffee beans that do not grind the coffee powder.

Description

Full-automatic coffee grinder and coffee grinding method

Technical Field

The invention relates to the technical field of full-automatic coffee machines, in particular to a full-automatic coffee grinder and a coffee grinding method.

Background

People apply electronic technology to coffee machines to create full-automatic coffee machines, along with the continuous improvement of people's standard of living, the continuous promotion of taste, many people no longer like to drink instant coffee, but like oneself to purchase coffee beans and brew after grinding and drink, but manual grinding is harder, and waste time, and so people choose to purchase full-automatic coffee machines more.

However, the existing coffee machine still has certain defects, such as that the bean grinding device can not be disassembled, so that the bean grinding device is difficult to clean. Furthermore, it is difficult to ensure the degree of fineness of grinding of the coffee powder in the case where the number of coffee beans added at a time is too large. In addition, after the first coffee brewing is completed, a certain amount of hot water can be left in the water outlet pipe, the hot water becomes cool after the coffee brewing machine is not used for a long time, and the cold water can brew the coffee when the coffee is brewed next time, so that the taste of the coffee is influenced.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a full-automatic coffee grinder and a coffee grinding method, which have the advantages that a coffee grinding device can be detached, coffee beans are precisely ground, a temperature sensor is arranged, the temperature of the coffee making water is proper, and the like, and the problems that the coffee grinding device cannot be detached, the grinding fineness of coffee powder is hard to ensure due to too many coffee beans, and cold water is left in a water outlet pipe to make the coffee powder.

(II) technical scheme

In order to solve the technical problems that the bean grinding device cannot be disassembled, the grinding fineness of coffee powder is difficult to ensure due to too much coffee beans and cold water is reserved in a water outlet pipe to brew the coffee powder, the invention provides the following technical scheme: a full-automatic coffee grinder comprises a coffee machine body, wherein a front groove is formed in the front portion of the coffee machine body, a draining disc is fixedly arranged on the lower surface of the front groove, a draining groove is formed in the lower portion of the draining disc, a coffee outlet is fixedly connected to the upper surface of the front groove, a controller is fixedly arranged on the upper portion of the front groove in the front side of the coffee machine body, a controller display screen and a control button are fixedly arranged on the surface of the controller away from the coffee machine body, a rear groove is formed in the lower portion of the rear side of the coffee machine body, an electric heating ring is fixedly arranged on the upper surface of the rear groove, a water tank is clamped in the rear groove, a water tank handle is fixedly arranged on the rear side of the water tank, a water tank cover body is hinged to the upper surface of the water tank, the hinged position of the water tank and the water tank cover body is close to the coffee machine body, and a bean grinding device is detachably arranged on the upper surface of the coffee machine body, the coffee machine comprises a coffee machine body and is characterized in that an upper groove is formed in the front side of a shell of a bean grinding device on the upper surface of the coffee machine body, a filtering mode conversion device is detachably arranged on the upper surface of the upper groove, and a water outlet device is fixedly arranged in the upper groove.

Preferably, grind the beans device including grind beans device shell, grind beans device lid, first draw-in groove, first fixture block, cartridge filter, filtration pore, bearing, mill beans axis of rotation, grind beans blade and grind the beans motor, coffee machine body upper surface can be dismantled and be provided with and grind beans device shell, it has the device lid of grinding beans to grind beans device shell upper surface is articulated, grind beans device shell and grind beans device lid articulated position and be close to the water tank lid, it evenly is provided with four first draw-in grooves as the central point with grinding beans device shell central line to grind beans device shell upper surface.

Preferably, the first clamping groove is connected with a first clamping block in a clamping mode, each first clamping block is far away from a filter cartridge fixedly connected with the end part of a shell of the bean grinding device, the height of each filter cartridge is smaller than the height of the shell of the bean grinding device, a plurality of filter holes are uniformly formed in the side surface and the bottom of each filter cartridge, a bearing is arranged in the middle of the bottom of each filter cartridge in a penetrating mode, a bean grinding rotating shaft is connected to the middle of the bearing in a rotating mode, bean grinding blades are fixedly arranged on the side surface of a rod body in each filter cartridge in the bean grinding rotating shaft, and the bean grinding.

Preferably, the fixed tilting disk that is provided with in mill bean motor lower part in the mill bean device shell, the mill bean device shell has been close to coffee machine body front portion side and has been seted up the coffee powder export, the tilting disk sets up and the lower end of tilting disk slope is located coffee powder export lower part at the inside slope of mill bean device shell, it is provided with the coffee powder outflow tube to run through in the coffee powder export, the coffee powder outflow tube is kept away from the mill bean device shell other end and is run through the setting in last recess side and extend to inside the upper groove, the fixed flowmeter that is provided with in coffee powder outflow tube side.

Preferably, the filtering mode conversion device comprises an upper groove clamping cover, a supporting shaft, a second clamping groove, a positioning clamping groove, a second clamping block, a knob, a connecting rod, a limiting ring and a filtering device, wherein the upper groove clamping cover is detachably arranged on the upper surface of the upper groove, the supporting shaft is sleeved in the upper groove clamping cover in a sliding mode, and the second clamping groove is formed in the upper portion of the upper groove clamping cover, which is located in the corresponding position of the supporting shaft.

Preferably, three positioning clamping grooves are uniformly formed in the circumference of the lower surface of each second clamping groove, the positioning clamping grooves are arranged at an angle of 120 degrees, an extension line of each positioning clamping groove is intersected above a central point of a coffee outlet, three second clamping blocks are fixedly arranged on the side surface, located in each second clamping groove, of the support shaft corresponding to the positioning clamping grooves, a knob is fixedly arranged at the outer end of each support shaft located in each upper groove, three auxiliary positioning convex blocks are fixedly arranged on the upper portion of each knob, and the positions of the auxiliary positioning convex blocks correspond to the positions of the second clamping blocks.

Preferably, the support shaft is positioned at the lower part in the upper groove and is fixedly provided with three connecting rods corresponding to the positioning clamping grooves, the end part of the connecting rod far away from the support shaft is fixedly connected with a limiting ring, three filtering devices are detachably arranged in the limiting ring, two central points of the filtering devices correspond to each other when the filtering devices are positioned above the coffee outlet, and the coffee powder outflow pipe is positioned at the inner end part of the upper groove and is positioned above the filtering device corresponding to the coffee outlet.

Preferably, the water outlet device comprises a water storage tank, a water inlet pipe, a water pump, a temperature sensor, a water outlet and a water outlet valve, the water storage tank is fixedly arranged on the other side of the upper groove, the water storage tank is connected with the water inlet pipe in a penetrating manner on the side face of the water storage tank, the other end of the water inlet pipe is fixedly connected with the water tank, the water pump is fixedly arranged on the side face of the water inlet pipe, the temperature sensor is fixedly arranged on the side face of the water storage tank, the water outlet is arranged on the side face of the water storage tank in a penetrating manner, the water outlet valve is fixedly arranged on the water outlet, and the lower end of the water outlet is positioned above the filtering device corresponding to the coffee outlet.

(III) advantageous effects

Compared with the prior art, the invention provides a full-automatic coffee grinder, which has the following beneficial effects:

1. this full-automatic coffee grinder through can dismantling the setting with grinding the beans device for it is more convenient to grind beans device washing and repair, in addition, goes into first draw-in groove with the first fixture block card of cartridge filter side, makes inside cartridge filter also have detachable characteristics, is convenient for dismantle the cartridge filter and wash.

2. This full-automatic coffee grinder, through setting up the cartridge filter for in coffee grinding process, ground coffee powder after can fall to grinding beans device shell inside from the cartridge filter side filtration pore, unfinished grinding process's coffee beans can continue to stay in the cartridge filter and grind, make the coffee bean leaf of grinding the coffee beans that does not grind into coffee powder carry out the accurate grinding, the situation that appears partial coffee beans and not ground when avoiding coffee beans and coffee powder to mix together produces.

3. This full-automatic coffee grinder through setting up temperature-sensing ware for the temperature of infusing coffee is suitable, avoids the cold water in the cistern to infuse the coffee powder, makes the coffee taste of infusing better.

4. This full-automatic coffee grinds machine through setting up three kinds of filter equipment, is coffee filter paper, coffee filter cloth and metal filter respectively, and marks on the assistance-localization real-time lug of knob top for operating personnel can select filter equipment according to the hobby of self.

5. This full-automatic coffee grinds machine through can dismantle the setting with filter equipment, is convenient for wash or change filter equipment.

6. According to the full-automatic coffee grinder, the falling amount of coffee powder is controlled by controlling the flow meter, the phenomenon that the taste of coffee is influenced by too much or too little coffee powder falling into the filtering device is avoided, and the quality of prepared coffee is improved.

Drawings

FIG. 1 is a first general structural diagram of the present invention;

FIG. 2 is a second overall view of the present invention;

FIG. 3 is a schematic view of the bottom structure of the water tank of the present invention;

FIG. 4 is a schematic view of the external structure of the bean grinding apparatus of the present invention;

FIG. 5 is a schematic view of the internal structure of the bean grinding apparatus of the present invention;

FIG. 6 is a schematic view of a bean grinding assembly of the present invention;

FIG. 7 is a schematic view of the position of a reservoir within a recess of the present invention;

FIG. 8 is a schematic structural diagram of a filtering mode switching device according to the present invention;

fig. 9 is a schematic structural view of the water outlet device of the present invention.

In the figure: 1. a coffee machine body; 2. draining the water plate; 3. a coffee outlet; 4. a controller; 5. a controller display screen; 6. a control button; 7. a rear groove; 8. an electric heating coil; 9. a water tank; 10. a water tank handle; 11. a water tank cover body; 12. a bean grinding device housing; 13. a first card slot; 14. a first clamping block; 15. a filter cartridge; 16. a filtration pore; 17. a bearing; 18. grinding the bean rotating shaft; 19. grinding the bean leaves; 20. a bean grinding motor; 21. tilting the disc; 22. a coffee powder outlet; 23. a coffee powder outflow pipe; 24. a flow meter; 25. an upper groove; 26. the upper groove is clamped and covered; 27. a support shaft; 28. a second card slot; 29. positioning the clamping groove; 30. a second fixture block; 31. a knob; 32. auxiliary positioning lugs; 33. a connecting rod; 34. a limiting ring; 35. a filtration device; 36. a water storage tank; 37. a water inlet pipe; 38. a water pump; 39. a temperature sensor; 40. a water outlet; 41. a water outlet valve; 42. grind beans device lid.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, a full-automatic coffee grinder comprises a coffee machine body 1, a front groove is formed at the front part of the coffee machine body 1, a draining disc 2 is fixedly arranged on the lower surface of the front groove, a draining groove is formed at the lower part of the draining disc 2, a coffee outlet 3 is fixedly connected to the upper surface of the front groove, a controller 4 is fixedly arranged at the upper part of the front groove at the front side of the coffee machine body 1, a controller display screen 5 and a control button 6 are fixedly arranged at the position, far away from the surface of the coffee machine body 1, of the controller 4, a rear groove 7 is formed at the lower part of the rear side of the coffee machine body 1, an electric heating ring 8 is fixedly arranged on the upper surface of the rear groove 7, a water tank 9 is clamped inside the rear groove 7, a water tank handle 10 is fixedly arranged at the rear side of the water tank 9, a water tank cover body 11 is hinged to the upper surface of the water tank 9, the water tank 9 is close to the coffee machine body 1 at the hinged position of the water tank cover 11, a bean grinding device is detachably arranged on the upper surface of the coffee machine body 1, an upper groove 25 is formed in the upper surface of the coffee maker body 1 and located in the front side of the bean grinding device shell 12, a filtering mode conversion device is detachably arranged on the upper surface of the upper groove 25, and a water outlet device is fixedly arranged in the upper groove 25.

Further, the bean grinding device comprises a bean grinding device shell 12, a bean grinding device cover body 42, first clamping grooves 13, a first clamping block 14, a filter cylinder 15, a filter hole 16, a bearing 17, a bean grinding rotating shaft 18, a bean grinding blade 19 and a bean grinding motor 20, wherein the bean grinding device shell 12 is detachably arranged on the upper surface of the coffee machine body 1, the bean grinding device cover body 42 is hinged to the upper surface of the bean grinding device shell 12, the hinged position of the bean grinding device shell 12 and the bean grinding device cover body 42 is close to the water tank cover body 11, and the four first clamping grooves 13 are uniformly arranged on the upper surface of the bean grinding device shell 12 by taking the central line of the bean grinding device shell 12 as the central position of the circumference. The grinding device cover 42 is first opened and the coffee beans are placed inside the filter cartridge 15 for subsequent operations. Can dismantle the setting through grinding the beans device for it is more convenient to grind beans device washing and repair, in addition, go into first draw-in groove 13 with the first fixture block 14 card of cartridge filter 15 side, makes inside cartridge filter 15 have detachable characteristics equally, is convenient for dismantle cartridge filter 15 and washs.

Further, a first clamping block 14 is clamped in the first clamping groove 13, the end portion of each first clamping block 14 far away from the bean grinding device shell 12 is fixedly connected with a filter cartridge 15, the height of the filter cartridge 15 is smaller than that of the bean grinding device shell 12, a plurality of filter holes 16 are uniformly formed in the side face and the bottom of the filter cartridge 15, a bearing 17 is arranged in the middle of the bottom of the filter cartridge 15 in a penetrating mode, a bean grinding rotating shaft 18 is connected to the middle of the bearing 17 in a rotating mode, a bean grinding blade 19 is fixedly arranged on the side face of a rod body in the filter cartridge 15 in the bean grinding rotating shaft 18, and the bean grinding rotating shaft 18 is fixedly connected with a bean grinding motor 20 in the outer end portion of the filter cartridge 15. After coffee beans are put into the filter cartridge 15, the cover body 42 of the bean grinding device is covered, the bean grinding motor 20 is opened to grind the coffee beans, the bean grinding motor 20 drives the bean grinding rotating shaft 18 to rotate and then drives the bean grinding blades 19 on the side of the bean grinding motor to rotate, the coffee beans are extruded and rubbed by the bean grinding blades 19 in the rotating process to be ground, in the coffee grinding process, ground coffee powder falls into the shell 12 of the bean grinding device from the filtering holes 16 on the side of the filter cartridge 15, coffee beans which are not ground are continuously left in the filter cartridge 15 to be ground, so that the bean grinding blades 19 accurately grind the coffee beans which are not ground into coffee powder, and the condition that part of coffee beans are not ground when the coffee beans and the coffee powder are mixed together is avoided.

Further, an inclined disc 21 is fixedly arranged at the lower part of the bean grinding motor 20 in the bean grinding device shell 12, a coffee powder outlet 22 is formed in the side surface of the bean grinding device shell 12 close to the front part of the coffee machine body 1, the inclined disc 21 is obliquely arranged in the bean grinding device shell 12, the lower inclined end of the inclined disc 21 is positioned at the lower part of the coffee powder outlet 22, a coffee powder outlet pipe 23 penetrates through the coffee powder outlet 22, the other end, far away from the bean grinding device shell 12, of the coffee powder outlet pipe 23 is arranged at the side surface of the upper groove 25 in a penetrating manner and extends into the upper groove 25, and a flow meter 24 is fixedly arranged at the side surface of the coffee powder outlet pipe 23. The ground coffee powder falls on the inclined disc 21 below the filter cartridge 15, then slides to a lower position through the upper surface of the inclined disc 21, and then controls the falling amount of the coffee powder through controlling the flow meter 24, so that the influence of too much or too little coffee powder falling into the filter device 35 on the taste of the coffee is avoided, and the quality of the prepared coffee is improved.

Further, the filtering mode conversion device comprises an upper groove clamping cover 26, a supporting shaft 27, a second clamping groove 28, a positioning clamping groove 29, a second clamping block 30, a knob 31, a connecting rod 33, a limiting ring 34 and a filtering device 35, wherein the upper surface of the upper groove 25 is detachably provided with the upper groove clamping cover 26, the supporting shaft 27 is sleeved in the upper groove clamping cover 26 in a sliding mode, and the upper portion of the upper groove clamping cover 26, which is located at the corresponding position of the supporting shaft 27, is provided with the second clamping groove 28. Through the second clamping groove 28 arranged in the upper groove clamping cover 26, the supporting shaft 27 is more convenient in the filter mode conversion process, and the supporting shaft 27 can be rotated only by adjusting the second clamping block 30 into the second clamping groove 28.

Furthermore, three positioning clamping grooves 29 are uniformly formed in the circumference of the lower surface of the second clamping groove 28, an angle of 120 degrees is formed between each two positioning clamping grooves 29, an extension line of one positioning clamping groove 29 is intersected above the center point of the coffee outlet 3, three second clamping blocks 30 are fixedly arranged on the side surface, located in the second clamping groove 28, of the support shaft 27 and corresponding to the positioning clamping grooves 29, a knob 31 is fixedly arranged at the outer end of the support shaft 27, located in the upper groove 25, three auxiliary positioning convex blocks 32 are fixedly arranged on the upper portion of the knob 31, and the positions of the auxiliary positioning convex blocks 32 correspond to the second clamping blocks 30. Before starting the coffee machine, the filtering mode is selected, the auxiliary positioning lug 32 corresponding to the favorite filtering mode is adjusted to the position above the central point of the coffee outlet 3 by rotating the knob 31, then the supporting shaft 27 is pressed downwards, so that the second fixture block 30 is clamped into the positioning fixture groove 29, and the lower end of the selected filtering device 35 is clamped into the position above the coffee outlet 3.

Furthermore, the lower part of the supporting shaft 27 in the upper groove 25 is fixedly provided with three connecting rods 33 corresponding to the positioning slots 29, the end part of the connecting rod 33 far away from the supporting shaft 27 is fixedly connected with a limiting ring 34, three filtering devices 35 are detachably arranged in the limiting ring 34, two central points of the filtering devices 35 correspond to each other when the filtering devices 35 are positioned above the coffee outlet 3, and the inner end part of the coffee powder outflow pipe 23 in the upper groove 25 is positioned above the filtering device 35 corresponding to the coffee outlet 3. The ground coffee powder is injected into the corresponding filter device 35 along the coffee powder outflow pipe 23, so that an operator can conveniently select a proper filter mode, and in addition, the three filter devices are respectively coffee filter paper, coffee filter cloth and a metal filter, and are correspondingly marked on the auxiliary positioning bump 32 above the knob 31, so that the operator can select the filter device according to own preference. In addition, the filter device 35 is detachably disposed, so that the filter device 35 can be conveniently cleaned or replaced.

Furthermore, the water outlet device comprises a water storage tank 36, a water inlet pipe 37, a water pump 38, a temperature sensor 39, a water outlet 40 and a water outlet valve 41, the water storage tank 36 is fixedly arranged on the other side of the upper groove 25, the water inlet pipe 37 is connected to the side surface of the water storage tank 36 in a penetrating manner, the other end of the water inlet pipe 37 is fixedly connected with the water tank 9, the water pump 38 is fixedly arranged on the side surface of the water inlet pipe 37, the temperature sensor 39 is fixedly arranged on the side surface of the water storage tank 36, the water outlet 40 is arranged on the side surface of the water storage tank 36 in a penetrating manner, the water outlet valve 41 is fixedly arranged on the water outlet 40, and the lower end of the water outlet 40 is positioned above the filtering device 35 corresponding to the coffee outlet 3. After the coffee powder falls into the filtering device 35, the controller 4 controls the electric heating ring 8 to heat water in the water tank, then hot water is pumped into the water storage tank 36 through the water pump 38, then the water outlet valve 41 is controlled to be opened, hot water is injected into the filtering device 35, the coffee powder is brewed by the hot water to form coffee and flows out from the coffee outlet 3, in addition, the water pumped into the water storage tank 36 cannot be completely used up in the first water pumping process of the coffee machine, at the moment, the water is remained in the water storage tank 36, after the coffee machine is not used for a long time, the water in the water storage tank 36 becomes cold, but the taste of the coffee is seriously influenced by the cold water brewing, so that the temperature sensor 39 is fixedly arranged on the side surface of the water storage tank 36, under the condition that cold water exists in the water storage tank 36, the water outlet valve 41 is closed, when enough hot water is pumped out from the water tank 9 to neutralize the cold water in the water storage tank 36 to a proper temperature, the temperature sensor 39 transmits a signal to the controller 4, and the controller 4 opens the outlet valve 41 to brew coffee with hot water. By arranging the temperature sensor 39, the temperature of the brewed coffee is proper, the cold water in the water storage tank 36 is prevented from brewing coffee powder, and the brewed coffee has better taste.

The working principle is as follows: when the coffee machine is used, before the coffee machine is started, the filtering mode is selected, the auxiliary positioning lug 32 corresponding to the favorite filtering mode is adjusted to the position above the central point of the coffee outlet 3 by rotating the knob 31, then the support shaft 27 is pressed downwards, so that the second fixture block 30 is clamped into the positioning fixture groove 29, and the lower end of the selected filtering device 35 is clamped into the position above the coffee outlet 3.

Then the cover body 42 of the bean grinding device is opened, coffee beans are put into the filter cylinder 15, the cover body 42 of the bean grinding device is covered, the bean grinding motor 20 is opened to grind the coffee beans, the bean grinding motor 20 drives the bean grinding rotating shaft 18 to rotate and then drives the bean grinding blades 19 on the side of the bean grinding motor to rotate, the coffee beans are extruded and rubbed by the bean grinding blades 19 in the rotating process to grind the coffee beans, in the coffee grinding process, ground coffee powder falls into the shell 12 of the bean grinding device from the filter holes 16 on the side of the filter cylinder 15, and coffee beans which do not finish the grinding process can be continuously left in the filter cylinder 15 to be ground.

After the coffee is ground, the coffee powder falls onto the inclined disc 21 below the filter cartridge 15, slides to a lower position through the upper surface of the inclined disc 21, then injects proper coffee powder into the filter device 35 below the coffee powder outflow pipe 23 through the control flow meter 24, then the controller 4 controls the electric heating ring 8 to heat water in the water tank, then pumps hot water into the water storage tank 36 through the water pump 38, then controls the water outlet valve 41 to be opened, injects the hot water into the filter device 35, and the hot water makes coffee powder to flow out from the coffee outlet 3.

When the coffee machine pumps water for the first time, the water pumped into the water storage tank 36 cannot be used up, the water is left in the water storage tank 36 at the moment, after the coffee machine is not used for a long time, the water in the water storage tank 36 becomes cool, but the taste of coffee is seriously influenced by brewing with cold water, so that the temperature sensor 39 is fixedly arranged on the side surface of the water storage tank 36, the water outlet valve 41 is closed under the condition that the cold water exists in the water storage tank 36, when enough hot water is pumped out from the water tank 9 to neutralize the cold water in the water storage tank 36 to a proper temperature, the temperature sensor 39 transmits a signal to the controller 4, the water outlet valve 41 is opened by the controller 4, and the coffee is brewed by using the hot water.

The coffee machine needs to regularly wash the bean grinding device and the filtering device in the using process, when the bean grinding device is washed, the shell 12 of the bean grinding device only needs to be detached during washing, then the filter cartridge 15 is detached from the inside of the shell to wash the bean grinding device, and when the filtering device is washed, the upper groove clamping cover 26 is detached to wash or replace the bean grinding device according to the characteristics of the filtering device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A full-automatic coffee grinder, comprising a coffee machine body (1), characterized in that: the coffee maker comprises a coffee maker body (1), a front groove is formed in the front portion of the coffee maker body (1), a draining disc (2) is fixedly arranged on the lower surface of the front groove, a draining groove is formed in the lower portion of the draining disc (2), a coffee outlet (3) is fixedly connected to the upper surface of the front groove, a bean grinding device is detachably arranged on the upper surface of the coffee maker body (1), an upper groove (25) is formed in the front side of a shell (12) of the bean grinding device, a filtering mode conversion device is detachably arranged on the upper surface of the upper groove (25), and a water outlet device is fixedly arranged inside the upper groove (25).

2. A fully automatic coffee grinder as claimed in claim 1, characterized in that: the bean grinding device comprises a bean grinding device shell (12), a bean grinding device cover body (42), first clamping grooves (13), first clamping blocks (14), a filter cartridge (15), a filter hole (16), a bearing (17), a bean grinding rotating shaft (18), bean grinding blades (19) and a bean grinding motor (20), wherein the bean grinding device shell (12) is detachably arranged on the upper surface of the coffee machine body (1), the bean grinding device cover body (42) is hinged to the upper surface of the bean grinding device shell (12), the hinged position of the bean grinding device shell (12) and the bean grinding device cover body (42) is close to a water tank cover body (11), the four first clamping grooves (13) are uniformly arranged on the circumference of the upper surface of the bean grinding device shell (12) by taking the central line of the bean grinding device shell (12) as the central position, the first clamping blocks (14) are clamped in the first clamping grooves (13), and the filter cartridge (15) is fixedly connected to the end part of each first clamping block (14) far away from the bean grinding device shell (12), the height that highly is less than mill beans device shell (12) of cartridge filter (15), a plurality of filtration pores (16) have evenly been seted up to cartridge filter (15) side and bottom, cartridge filter (15) bottom intermediate position runs through and is provided with bearing (17), it is connected with mill beans axis of rotation (18) to rotate in the middle of bearing (17), it grinds beans blade (19) to be located the fixed bean grinding blade that is provided with in pole body side in cartridge filter (15) to grind beans axis of rotation (18), it grinds beans motor (20) to be located the outer tip fixedly connected with of cartridge filter (15) in mill beans axis of rotation (18).

3. A fully automatic coffee grinder as claimed in claim 2, characterized in that: it is provided with slope disc (21) to lie in the fixed slope disc in mill bean motor (20) lower part in mill bean device shell (12), mill bean device shell (12) are close to coffee machine body (1) front portion side and have seted up coffee powder export (22), slope disc (21) set up and slope disc (21) lower extreme in coffee powder export (22) lower part in the inside slope of mill bean device shell (12), it is provided with coffee powder outflow tube (23) to run through in coffee powder export (22), coffee powder outflow tube (23) are kept away from mill bean device shell (12) other end and are run through the setting in last recess (25) side and extend to inside recess (25), coffee powder outflow tube (23) side is fixed and is provided with flowmeter (24).

4. A fully automatic coffee grinder as claimed in claim 1, characterized in that: the filtering mode conversion device comprises an upper groove clamping cover (26), a supporting shaft (27), a second clamping groove (28), a positioning clamping groove (29), a second clamping block (30), a knob (31), a connecting rod (33), a limiting ring (34) and a filtering device (35), wherein the upper surface of the upper groove (25) is detachably provided with the upper groove clamping cover (26), the supporting shaft (27) is sleeved in the upper groove clamping cover (26) in a sliding mode, and the upper portion of the upper groove clamping cover (26) located in the corresponding position of the supporting shaft (27) is provided with the second clamping groove (28).

5. A fully automatic coffee grinder as claimed in claim 4, characterized in that: three positioning clamping grooves (29) are uniformly formed in the circumference of the lower surface of the second clamping groove (28), the positioning clamping grooves (29) are 120 degrees, the extension line of one positioning clamping groove (29) is intersected above the central point of the coffee outlet (3), three second clamping blocks (30) are fixedly arranged on the side surface, located in the second clamping groove (28), of the support shaft (27) and corresponding to the positioning clamping grooves (29), a knob (31) is fixedly arranged at the outer end portion of the upper groove (25) of the support shaft (27), three auxiliary positioning convex blocks (32) are fixedly arranged on the upper portion of the knob (31), and the positions of the auxiliary positioning convex blocks (32) correspond to the second clamping blocks (30).

6. A fully automatic coffee grinder as claimed in claim 5, characterized in that: the supporting shaft (27) is located in the upper groove (25), the lower portion of the supporting shaft (27) corresponds to the positioning clamping groove (29), three connecting rods (33) are fixedly arranged at positions corresponding to the positioning clamping groove (29), the connecting rods (33) are far away from the end portion of the supporting shaft (27) and are fixedly connected with limiting rings (34), three filtering devices (35) are detachably arranged in the limiting rings (34), two central points of the filtering devices (35) correspond to each other when the filtering devices (35) are located above the coffee outlet (3), and the coffee powder outflow pipe (23) is located at the inner end portion of the upper groove (25) and is located above the filtering devices (35) corresponding to the coffee outlet (3).

7. A fully automatic coffee grinder as claimed in claim 6, characterized in that: the water outlet device comprises a water storage tank (36), a water inlet pipe (37), a water pump (38), a temperature sensor (39), a water outlet (40) and a water outlet valve (41), the water storage tank (36) is fixedly arranged on the other side of the upper groove (25), the water inlet pipe (37) is connected to the side face of the water storage tank (36) in a penetrating manner, the other end of the water inlet pipe (37) is fixedly connected with the water tank (9), the water pump (38) is fixedly arranged on the side face of the water inlet pipe (37), the temperature sensor (39) is fixedly arranged on the side face of the water storage tank (36), the water outlet (40) is arranged on the side face of the water storage tank (36) in a penetrating manner, the water outlet valve (41) is fixedly arranged on the water outlet (40), and the lower end of the water outlet (40) is positioned above the filtering device (35) corresponding to the coffee outlet (3).