CN112971530A

CN112971530A - Fine grinding type coffee machine

Info

Publication number: CN112971530A
Application number: CN202110283425.8A
Authority: CN
Inventors: 莫内.吉多; 韦成寿
Original assignee: Shenzhen Meilejia Household Products Co ltd
Current assignee: Shenzhen Meilejia Household Products Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-06-18

Abstract

The invention relates to the technical field of intelligent electrical appliances, and discloses a fine grinding type coffee machine which comprises a material box, a grinding assembly, a powder discharging assembly, an extraction assembly and a controller, wherein the material box is used for containing roasted coffee beans, and the grinding assembly is used for grinding the coffee beans into powder. The finely ground coffee machine is characterized in that a container is filled with ground coffee powder, the density grade of the powder is calculated by using a fixed volume, the gap grade, the density grade and the particle diameter grade are in one-to-one correspondence, a user can check the ground coffee powder according to the density grade after selecting the diameter of the ground coffee powder according to own taste, if the ground coffee powder is unqualified, the gap grade is determined again according to a grade difference value and then processed again, the ground coffee powder in the ideal state of the user can be obtained, the machine can be calibrated, the processing precision is guaranteed, the quality of ground coffee is determined by using the quality of the ground coffee beans, corresponding processing amount can be flexibly selected according to own taste when the finely ground coffee machine is used, the accurate selection of the particle size is matched, and the consistency of the.

Description

Fine grinding type coffee machine

Technical Field

The invention relates to the technical field of intelligent electric appliances, in particular to a fine grinding type coffee machine.

Background

Since ground coffee is susceptible to oxidation and flavor loss, a cup of savory coffee is preferably ground just before it is cooked, and thus the preferred coffee maker typically has a coffee bean grinding function.

Generally, the flavor of coffee is related to the cooking mode and the diameter of the powder particles, the smaller the particles are, the more sufficiently the substance in the coffee is extracted, the coffee tends to be bitter and vice versa to be tasteless, while the extraction mode and time of coffee machines are generally fixed, so that the diameter of the ground particles is usually changed to adapt to the taste of different people, many coffee machines also have the function of diameter adjustment, but as the coffee is used for a long time, the internal loosening is generated, the actual gap is not set to be large, the coffee adjustment precision is reduced, the adjustment of the target diameter is difficult to achieve, and secondly, the coffee machines also generally have no particle diameter feedback function and cannot achieve adjustment.

Secondly, regarding the coffee flavor, the general coffee machine can only be adjusted and selected into a single cup or a double cup type, or the flavor can be adjusted by selecting the powder output amount according to the powder output time, for the former, the flexibility is low, and the proper flavor is difficult to adapt to, and for the latter, even if the powder output time is the same, the powder output amount cannot be completely the same, and the flavor cannot be accurately adjusted.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the technical scheme of the fine grinding type coffee machine, which has the advantages of high grinding precision, stable taste after intelligent selection and the like, and solves the problems provided by the background technology.

The invention provides the following technical scheme: a fine grinding type coffee machine comprises a material box, a grinding component, a powder outlet component, an extraction component and a controller, wherein the material box is used for containing roasted coffee beans, the grinding component is used for grinding the coffee beans into powder, the powder outlet component comprises a conveying pipeline, the extraction component is used for extracting and brewing coffee, a blanking component is arranged at the bottom of the material box, a metering component is arranged below the blanking component, the metering component comprises a hopper and a first pressure sensor, the bottom of the hopper can be controlled to be opened and closed, the first pressure sensor is in information transmission with the controller, when the target amount is reached, the controller is used for controlling the bottom of the metering component to be opened and conveying the coffee beans to the grinding component, the grinding component is connected with an adjusting component capable of adjusting the gap between cutter heads of the grinding component, a checking component capable of detecting the diameter of powder particles is arranged below a discharge port of the grinding component, and a transfer, the transfer powder box is connected with the return subassembly, the return subassembly can be carried the metering component with the powder in the transfer powder box in, the inspection subassembly with return the subassembly and all with controller electric connection, the inspection subassembly detects the coffee powder diameter and reaches the requirement then control transfer powder box bottom and open, carry out the powder subassembly with the coffee powder, otherwise then start the return subassembly, carry its powder to grind again in the metering component to tool bit diameter in the actual diameter adjustment grinding component according to the powder.

Preferably, the checking assembly comprises a metering cylinder with a fixed volume, a weighing member at the bottom of the metering cylinder and an overturning member.

Preferably, the upset piece includes the bull stick of being connected with a measuring section of thick bamboo bottom, the bull stick is connected with the driving piece, the bull stick cover is equipped with the screw thread spare, one side that the measuring section of thick bamboo was kept away from to the screw thread spare is equipped with the screw thread that corresponds with the screw thread spare, and screw thread spare leave the clearance during its is initial, one side of keeping away from the upset piece of a measuring section of thick bamboo is equipped with down terminal surface and a measuring section of thick bamboo on the scraper blade that the border flushes.

Preferably, the weighing part comprises a containing cavity arranged at the bottom of the metering cylinder and a connecting table fixedly connected with the overturning part, a second pressure sensor is arranged between the connecting table and the top of the containing cavity, and a wing plate is arranged at the edge of the upper end of the connecting table to enable the connecting table to keep moving in the containing cavity.

Preferably, the transfer powder box is rectangular, an inclined plane is arranged inside the transfer powder box, a controllable opening is arranged at the bottom of the inclined plane, and the opening is opened or closed under the control of the controller.

Preferably, the transfer powder box includes the box body, be equipped with horizontally lateral stabilization slider and vertical longitudinal stabilization slider on the box body, return the chain that the subassembly encloses into the rectangle, the inner wall of organism be equipped with the first cross slot and the second cross slot that the lateral stabilization slider corresponds, the inside of organism still be equipped with the longitudinal groove that the longitudinal stabilization slider corresponds.

Preferably, the blanking assembly comprises a blanking cavity, a metering rotary groove is formed in the middle of the blanking cavity, the metering rotary groove is connected with a servo motor in a transmission mode, the controller controls the rotating speed of the metering rotary groove, the controller estimates the coffee quality according to the number of rotating turns of the metering rotary groove and controls the servo motor to rotate at the lowest speed when the target quality is reached, and the controller corrects the coffee bean weight of each metering rotary groove according to the comparison between the actual weight measured by the metering assembly and the estimated quality.

The invention has the following beneficial effects:

1. according to the fine grinding type coffee machine, ground coffee powder is firstly piled in a container, the density grade of the powder is calculated by using a fixed volume, the gap grade, the density grade and the particle diameter grade are in one-to-one correspondence, a user can check the coffee powder according to the density grade after selecting the diameter of the coffee powder according to own taste, if the coffee powder is unqualified, the gap grade is determined again according to the grade difference value and then the coffee powder is processed again, on one hand, the ideal coffee powder of the user can be obtained, on the other hand, the machine can be calibrated, and the processing precision is guaranteed.

2. This fine grinding formula coffee machine utilizes the quality of coffee beans to confirm the quality of crocus, can be nimble when using according to the corresponding processingquantity of taste selection of oneself, and the accurate selection of cooperation particle diameter guarantees the coffee taste of corresponding parameter and keeps the uniformity, and then realizes the intelligent selection of taste, selects the coffee that corresponding parameter must obtain the target taste promptly.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of an inspection module according to the present invention;

FIG. 3 is a schematic structural view of a weighing member according to the present invention;

FIG. 4 is a schematic structural view of the transfer powder box of the present invention;

fig. 5 is a schematic structural view of the blanking assembly of the present invention.

In the figure: 1. a magazine; 2. a grinding assembly; 3. a powder discharging assembly; 4. an extraction assembly; 5. a blanking assembly; 51. a blanking cavity; 52. a metering rotary trough; 53. a servo motor; 6. a metering assembly; 7. an adjustment assembly; 8. inspecting the component; 81. a metering drum; 82. weighing the parts; 821. a connecting table; 822. a cavity; 823. a second pressure sensor; 83. a turnover piece; 831. a rotating rod; 832. a drive member; 833. a threaded member; 84. a squeegee; 9. transferring the powder box; 91. a laterally stabilized slide; 92. a longitudinally stabilizing slide block; 93. a box body; 91a, a first horizontal groove; 92a, a second transverse groove; 93a, a longitudinal groove; 10. and returning the component.

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, a fine grinding type coffee machine comprises a material box 1, a grinding component 2, a powder outlet component 3, an extraction component 4 and a controller, wherein the material box 1 is used for containing roasted coffee beans, the grinding component 2 is used for grinding the coffee beans into powder, the gap of a cutter head is adjustable, the powder outlet component 3 comprises a conveying pipeline for outputting the ground coffee powder, the extraction component 4 is used for extracting and brewing coffee, the bottom of the material box 1 is provided with a blanking component 5 for controlling the leakage amount of the coffee beans, a metering component 6 is arranged below the blanking component 5, the metering component 6 comprises a hopper and a first pressure sensor, the hopper and the first pressure sensor are controlled to be opened and closed, the pressure sensor is provided with a neck of the hopper and is in information transmission with the controller, when the target amount is reached, the controller controls the bottom of the metering component 6 to be opened to convey the coffee beans into the grinding component 2, the grinding component 2 is connected with an adjusting component 7 capable of adjusting the, the adjusting component 7 comprises a stepping motor and a plectrum, the plectrum waves the rotation of the cutter head of the grinding component 2, so as to adjust the clearance of the cutter head and realize the gradient adjustment of the diameter of the coffee powder, according to the control parameters of the controller, the gap of the cutter head is determined by a stepping motor, an inspection component 8 capable of detecting the diameter of the powder particles is arranged below the discharge port of the grinding component 2, a transfer powder box 9 is arranged below the inspection component 8, the transfer powder box 9 is connected with a return component 10, the return component 10 can convey the powder in the transfer powder box 9 to the metering component 6, the inspection component 8 and the return component 10 are both electrically connected with the controller, when the inspection component 8 detects that the diameter of the coffee powder meets the requirement, the bottom of the middle powder rotating box 9 is controlled to be opened, the coffee powder is conveyed into the powder outlet component 3, otherwise, the return assembly 10 is activated, delivering its powder to the metering assembly 6 for regrinding and adjusting the diameter of the cutting head in the grinding assembly 2 according to the actual diameter of the powder.

Referring to fig. 2, the checking assembly 8 includes a measuring cylinder 81 with a fixed volume, a weighing member 82 at the bottom of the measuring cylinder 81, and an overturning member 83, wherein the measuring cylinder 81 is located right below the discharge port of the grinding assembly 2, when the coffee powder falls into and fills the container, the mass of the coffee powder can be calculated according to the pressure sensor, the larger the diameter of the coffee powder, the smaller the density of the coffee powder, the diameter of the coffee powder can be further determined, and the coffee powder can be overturned after the calculation is finished, so that the coffee in the coffee powder falls out.

Wherein, the turning member 83 includes a rotating rod 831 connected with the bottom of the measuring cylinder 81, the rotating rod 831 is connected with a driving member 832, the driving member 832 can make a liquid/air pressure rod, or a linear motor, and can drive the driving member 832 to move linearly, the rotating rod 831 is sleeved with a threaded member 833, one side of the threaded member 833 away from the measuring cylinder 81 is provided with a thread corresponding to the threaded member 833, the thread and the threaded member 833 leave a gap at the beginning (i.e. when the checking component 8 is positioned right below the discharge port), one side of the measuring cylinder 81 away from the turning member 83 is provided with a scraping plate 84 with a lower end surface flush with the upper edge of the measuring cylinder 81, the rotating rod 831 is further provided with a sleeve for ensuring the linear motion, not shown in the figure, before turning, the driving member 832 pushes the rotating rod 831 to move linearly, drives the measuring cylinder 81 to move to the scraping plate 84 to scrape the measuring cylinder 81 and then stop, so that the coffee powder on, thereafter, the driving member 832 continues to move linearly, and the rotation rod 831 entering the screw 833 interacts to turn the measuring cylinder 81 upside down, pouring out the coffee, and then the driving member 832 is reset.

Referring to fig. 3, the weighing member 82 includes a cavity 822 disposed at the bottom of the metering cylinder 81 and a connecting table 821 fixedly connected to the tilting member 83, a second pressure sensor 823 is disposed between the connecting table 821 and the top of the cavity 822, and a wing plate is disposed at an upper end edge of the connecting table 821 to keep the connecting table in the cavity 822 for movement, so that the connecting table 821 can be conveniently tilted while accurately measuring pressure.

Referring to fig. 4, the transfer powder box 9 is rectangular, a slope is provided inside the transfer powder box 9 to allow coffee to move to one side, and a controllable opening is provided at the bottom of the slope and is opened or closed under the control of the controller.

Wherein, the transfer powder box 9 includes box body 93, be equipped with horizontally transversely stable slider 91 and vertical vertically stable slider 92 on the box body 93, return subassembly 10 for enclosing into the chain of rectangle, box body 93 outer wall passes through the spliced pole and connects return subassembly 10 and move under the drive of returning subassembly 10, the inner wall of organism is equipped with first cross slot 91a and the second cross slot 91b that corresponds with transversely stable slider 91, during box body 93 horizontal motion, transversely stable slider 91 slides in first cross slot 91a and second cross slot 91b respectively, the stability of keeping the removal, the inside of organism still is equipped with the vertical groove 92a that corresponds with vertically stable slider 92, guarantee vertical movement's stability.

Referring to fig. 5, the blanking assembly 5 includes a blanking chamber 51, a metering rotary chute 52 is disposed in the middle of the blanking chamber 51, the metering rotary chute 52 is connected to a servo motor 53 in a transmission manner, the controller controls the rotation speed of the metering rotary chute 52, when the controller receives the amount of coffee to be ground, the servo motor 53 is controlled to rotate to drive the metering rotary chute 52 to rotate for blanking, the controller estimates the coffee quality according to the number of rotation turns of the metering rotary chute 52 and controls the servo motor 53 to rotate at the lowest speed when the target coffee quality is reached, and the controller corrects the coffee bean weight of each metering rotary chute 52 according to the comparison between the actual weight measured by the metering assembly 6 and the estimated quality, so as to improve the next bean discharging efficiency.

The working principle and the working process of the invention are as follows:

the user inputs parameters of coffee quantity and particle size to the controller through APP or a panel, the controller stores and names the parameters, after the controller is started, the controller calculates the number of turns of rotation of the servo motor 53 according to the parameters, the blanking component 5 rotates quickly at first and rotates at the slowest speed after approaching the target number of turns, the metering component 6 meters the coffee bean quality in real time, after the target quality is reached, the blanking component 5 is controlled to stop rotating and the bottom of the metering component 6 is opened, coffee enters the grinding component 2 to be ground, the controller adjusts the parameters of each turn of estimated quality according to the actual number of turns, after the grinding component 2 grinds, coffee powder flows out and is gradually piled up in the inspection component 8 and falls into the transfer powder box 9, the inspection component 8 estimates the actual coffee powder diameter according to the mass calculation density and then turns over, if the actual coffee powder diameter is consistent with the target diameter, the bottom of the transfer powder box 9 is opened, coffee is discharged through, if the coffee is not qualified, the clearance parameter is adjusted according to the actual particle size, for example, if the particle size is higher than the target level, the clearance is adjusted to be smaller than the target level by two levels, and the coffee is returned to the metering assembly 6 by the returning assembly 10 to be ground again.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 fine grinding type coffee machine comprises a material box (1), a grinding assembly (2), a powder discharging assembly (3), an extracting assembly (4) and a controller, wherein the material box (1) is used for containing roasted coffee beans, the grinding assembly (2) is used for grinding the coffee beans into powder, the powder discharging assembly (3) comprises a conveying pipeline, and the extracting assembly (4) is used for extracting and brewing coffee and is characterized in that: the coffee bean grinding device is characterized in that a discharging component (5) is arranged at the bottom of the material box (1), a metering component (6) below the discharging component (5) is arranged, the metering component (6) comprises a hopper and a first pressure sensor, the bottom of the hopper can be controlled to open and close, the first pressure sensor and a controller transmit information, when the target quantity is reached, the bottom of the metering component (6) is controlled by the controller to open, coffee beans are conveyed into the grinding component (2), the grinding component (2) is connected with an adjusting component (7) capable of adjusting the gap between the cutter heads of the grinding component (2), a checking component (8) capable of detecting the diameter of powder particles is arranged below the discharge port of the grinding component (2), a transfer powder box (9) is arranged below the checking component (8), the transfer powder box (9) is connected with a return component (10), the return component (10) can convey powder in the transfer powder box (9) into the metering component (, the inspection component (8) and the return component (10) are electrically connected with the controller, the inspection component (8) detects that the diameter of the coffee powder meets the requirement, then the bottom of the transfer powder box (9) is controlled to be opened, the coffee powder is conveyed into the powder outlet component (3), otherwise, the return component (10) is started, the powder is conveyed into the metering component (6) to be ground again, and the diameter of a cutter head in the grinding component (2) is adjusted according to the actual diameter of the powder.

2. A fine grinding coffee machine according to claim 1, characterized in that: the checking assembly (8) comprises a metering cylinder (81) with a fixed volume, a weighing member (82) at the bottom thereof and an overturning member (83).

3. A fine grinding coffee machine according to claim 2, characterized in that: upset piece (83) include bull stick (831) of being connected with a measurement section of thick bamboo (81) bottom, bull stick (831) are connected with driving piece (832), bull stick (831) cover is equipped with screw (833), one side that a measurement section of thick bamboo (81) was kept away from in screw (833) is equipped with the screw thread that corresponds with screw (833), and screw thread and screw (833) leave the clearance during its is initial, one side that upset piece (83) were kept away from in a measurement section of thick bamboo (81) is equipped with down terminal surface and a measurement section of thick bamboo (81) go up along flush scraper blade (84).

4. A fine grinding coffee machine according to claim 2, characterized in that: the weighing part (82) comprises a containing cavity (822) arranged at the bottom of the metering cylinder (81) and a connecting table (821) fixedly connected with the overturning part (83), a second pressure sensor (823) is arranged between the connecting table (821) and the top of the containing cavity (822), and a wing plate is arranged at the edge of the upper end of the connecting table (821) to enable the connecting table (821) to keep moving in the containing cavity (822).

5. A fine grinding coffee machine according to claim 1, characterized in that: the transfer powder box (9) is rectangular, an inclined plane is arranged inside the transfer powder box (9), a controllable opening is formed in the bottom of the inclined plane, and the opening is opened or closed under the control of the controller.

6. A fine grinding coffee machine according to claim 1, characterized in that: transfer powder box (9) includes box body (93), be equipped with horizontally transversely stable slider (91) and vertical longitudinal stabilization slider (92) on box body (93), return subassembly (10) and for enclosing into the chain of rectangle, the inner wall of organism be equipped with first cross slot (91a) and second cross slot (91b) that transversely stable slider (91) corresponds, the inside of organism still is equipped with and longitudinal groove (92a) that longitudinally stable slider (92) correspond.

7. A fine grinding coffee machine according to claim 1, characterized in that: the utility model discloses a coffee machine, including unloading subassembly (5), the middle part of unloading chamber (51) is equipped with measurement rotary trough (52), measurement rotary trough (52) transmission is connected with servo motor (53), the rotational speed of measurement rotary trough (52) is controlled to the controller, the controller is based on the number of turns of rotation estimation coffee quality of measurement rotary trough (52) and is controlling servo motor (53) and rotate with the minimum speed when reaching target quality, the controller is based on actual weight and the estimation quality that measurement subassembly (6) measured and is compared the coffee beans weight of every measurement rotary trough (52) and revise.