Bean feeding and grinding mechanism of bean box of coffee machine

Abstract

The utility model relates to a bean feeding and grinding mechanism of a bean box of a coffee machine, and aims to solve the technical problems that similar products are easy to block beans in the bean feeding process, the beans are easy to splash outwards when entering a grinder, and the matching between bean feeding components is not easy to fix. The mechanism comprises a bean box assembly, a bean box base assembly and a bean grinder assembly, and is characterized in that a bean box base of the bean box assembly is fixedly arranged at the bottom of a bean box lower cover through screws, two rectangular bone positions are arranged at the bottom of the bean box base, the bone positions are columnar ribs, the bean box base and a bean box placing frame are placed and positioned along the bone ribs, and the bean box base and the bean box placing frame are fixedly arranged. The bone positions are correspondingly inserted into rectangular holes in a bean box placement frame of a bean box base assembly below in a matched mode, ejector rods below the rectangular holes are pressed by pressure to extrude downwards to trigger corresponding microswitches, and a transmission gear is inserted into a cylindrical positioning column at the bottom of a bean feeding gear and is fixedly matched with the cylindrical positioning column; and the microswitch respectively triggers a bean grinding motor of the bean grinder assembly and a synchronous motor of the bean box base assembly.

Description

Technical Field

[0001] The utility model relates to a coffee machine and its bean grinding device, and is a bean discharging and grinding mechanism under the bean box of a coffee machine. Background Art

[0002] A coffee machine is an electrical device used for coffee making, generally divided into semi-automatic and fully automatic types. Among them, the semi-automatic coffee machine is a traditional Italian coffee machine, which grinds, presses, loads, brews, and manually removes residues according to manual operations; the fully automatic coffee machine realizes the automatic control of the whole process of brewing coffee, including preheating, cleaning, grinding, pressing, brewing, and discharging powder, brews coffee according to scientific data and procedures, and is equipped with a perfect protection system, making it convenient to use, and one can get coffee with just a gentle press. The grinding mechanism of a coffee machine is a powder grinding tool that grinds coffee beans into coffee powder when a mechanical cutter rotates rapidly driven by a motor. However, when the existing grinding mechanism of a coffee machine grinds coffee powder, a certain amount of coffee beans usually need to be put into a bean box and ground by a grinder. Therefore, in most cases, it is difficult to control the quantity of coffee beans, and most users are non-professionals and cannot quantitatively grind the amount of coffee powder they need. Moreover, there will be residual coffee beans above the grinding disc after taking out the bean box, which will affect the mixed grinding of coffee beans with different flavors next time and the taste quality of coffee. For this reason, some existing grinding mechanisms of coffee machines adopt automatic feeding, bean grinding, and powder discharging structures, such as the application number 202320048768.0 disclosed in Chinese patent literature, the authorization announcement date is June 23, 2023, and the utility model name is "Bean Grinding Drip Coffee Machine Grinding Device"; another example is the application number 202322027446.0 disclosed in Chinese patent literature, the authorization announcement date is April 2, 2024, and the utility model name is "A Bean Grinding Device and Coffee Machine with Electrostatic Elimination Function"; however, the above products and similar products are still prone to bean jamming during the bean discharging process, are prone to splashing out when entering the grinder, and have problems such as poor fixation of the cooperation between the bean discharging components. Summary of the Invention

[0003] To overcome the above deficiencies, the purpose of the present utility model is to provide a bean discharging and grinding mechanism under the bean box of a coffee machine to the art, so as to solve the technical problems that existing similar products are still prone to bean jamming during the bean discharging process, are prone to splashing out when entering the grinder, and have poor fixation of the cooperation between the bean discharging components. Its purpose is achieved through the following technical solutions.

[0004] A coffee machine's bean hopper's bean discharging and grinding mechanism, which mechanism includes a bean box assembly, a bean box base assembly, and a bean grinder assembly. At the upper opening of the bean hopper of the bean box assembly, there is a bean box cover assembly. At the center of the inner bottom of the bean hopper, there is a bean discharging gear. Below the gear leaves on one side between the gear leaves equidistantly distributed at the bean discharging gear, there is a bean discharging opening. The bean discharging opening passes through the bean box base and the bean box mounting bracket, and the cylindrical sleeve below the bean box mounting bracket is embedded in the stator bracket at the top of the bean grinder assembly. At the square worm of the synchronous motor of the bean box base assembly, there is a transmission gear. The synchronous motor of the bean box base assembly drives the bean discharging gear of the bean box assembly to rotate through the square worm and the transmission gear. The key point of its structural design is that the bean box base is fixedly arranged at the bottom of the lower cover of the bean box through screws. At the bottom of the bean box base, there are two rectangular ribs, and the ribs are columnar ribs. The ribs of the bean box base form corresponding fitting insertion with the rectangular openings at the bean box mounting bracket of the lower bean box base assembly below. On both sides of the rectangular opening at the bottom of the bean box mounting bracket, there is a microswitch fixing seat respectively. The microswitch fixing seats are respectively provided with microswitches. Below the rectangular opening, there are ejector rods respectively. The upper end of the ejector rod is shaped as a rectangle and is inserted into the rectangular opening at the bottom of the bean box mounting bracket. Springs are respectively arranged at the ejector rods. When the ejector rods are respectively pressed downward by pressure to trigger the corresponding microswitches, at the same time, the transmission gear is inserted into the cylindrical positioning column at the bottom of the bean discharging gear and forms a fixed fit, and the microswitches respectively trigger the bean grinding motor of the bean grinder assembly and the synchronous motor of the bean box base assembly to enter the working state. The above-mentioned bean box assembly, bean box base assembly, and bean grinder assembly form the bean discharging assembly of the coffee machine, which is convenient for disassembling and cleaning the bean box assembly; the cylindrical sleeve of the bean box mounting bracket is embedded into the stator bracket to prevent beans from splashing out during the bean grinding process.

[0005] On the outer side of the bean box base and the inner side of the bean box mounting bracket, there are corresponding ribs respectively. The ribs are corresponding concave and convex chutes. At both ends of the inner side of the bean box mounting bracket, there are open edges respectively. The bean box assembly is obliquely placed into the bean box base assembly from the side. When the bean box base of the bean box assembly and the bean box mounting bracket of the bean box base assembly are placed and positioned along the ribs, at the same time, the ribs of the bean box base form corresponding fitting with the rectangular openings at the bean box mounting bracket of the lower bean box base assembly below.

[0006] At least two magnets are provided at the bottom of the bean box base. At the top of the corresponding bean box mounting bracket, there are another two corresponding magnets. The bean box assembly is obliquely placed into the bean box base assembly from the side. When the bean box base of the bean box assembly and the bean box mounting bracket of the bean box base assembly are placed and positioned along the ribs, at the same time, the magnets at the bottom of the bean box base attract each other corresponding to the magnets of the lower bean box mounting bracket below. The magnets are respectively fixed to the bean box base and the bean box mounting bracket through screws. The above-mentioned magnets adopt the working principle of attracting with opposite poles. Among them, one side of the magnets of the bean box base and the bean box mounting bracket can also be replaced with iron sheets. The magnets at the bottom of the bean box base are preferably arranged diagonally.

[0007] The bean box assembly is provided with an anti-bean splashing grille inside the bean box, and four end corner positioning columns are respectively provided at the bottom end corners of the anti-bean splashing grille, corresponding to the positioning screw holes at the four corners inside the bean box, and the bean box base is fixed to the bottom of the bean box lower cover by screws, and the screws are connected to the four end corner positioning columns at the bottom of the anti-bean splashing grille. The anti-bean splashing grille in the bean box prevents beans from flying out during the bean dropping process and fingers from accidentally touching the bean dropping gear.

[0008] The bean box assembly has an arched slope on one side of the inclined surface between the through hole and the inner wall where the bean discharging gear is set inside the bean box, a bean inlet is set on one side of the slope, and three round holes are set on the other side of the slope. The three round holes are fixedly matched with three mushroom-shaped positioning columns on one side of the bean-blocking silicone sheet. The other side of the bean-blocking silicone sheet blocks the bean inlet, and the arched shape of the bean-blocking silicone sheet forms a corresponding match with the slope. The bean-blocking silicone sheet cooperates with the bean box through three points to increase stability. The bean box uses the silicone elasticity of the bean-blocking silicone sheet to bounce away some beans during the bean discharging process, preventing a large amount of beans from rushing to the bean discharging port and causing accumulation during the bean discharging process.

[0009] The cylindrical positioning column protruding below the bean lowering gear is inserted into the central hole of the lower cover of the bean box below and fixed together by a retaining spring. The bean lowering opening is provided on one side of the lower cover of the bean box, and the bean lowering opening extends out of the bean box base at the bottom of the lower cover of the bean box.

[0010] The middle of the lower bean gear is convex upward to form a cone, the conical inclined surface of the lower bean gear is provided with equidistantly distributed bean-pushing ribs, the bottom conical opening is provided with equidistantly distributed gear leaves, the gap between the gear leaves on one side is aligned with the rectangular lower bean opening of the lower bean box cover below, the width and length of the lower bean opening are greater than the gap between the gear leaves of the lower bean gear, the gear leaves of the lower bean gear are located in the outer circle groove at the lower bean opening of the lower bean box cover, the boss in the middle of the lower bean box cover inside the circle groove is inserted into the bottom conical opening of the lower bean gear, one side of the lower bean opening of the lower bean box cover is convex higher than the outer diameter of the gap between the gear leaves, the inner diameter of the circle groove of the lower bean box cover is provided with equidistantly distributed limit blocks, the limit blocks corresponding to the gap between the gear leaves of the lower bean gear are placed in the circle groove of the lower bean box cover, and the limit blocks of the lower bean box cover are buckled with the block groove of the outer diameter of the sleeve raised at the bottom of the bean box.

[0011] An L-shaped hook is provided on the left side of the push rod, a rectangular convex point is provided on the right side of the push rod, a push rod positioning frame is provided below the push rod, a semicircular opening is provided at the left end of the push rod positioning frame, the semicircular opening of the push rod positioning frame cooperates with the lower end of the push rod, the push rod positioning frame corresponds to the cylindrical screw column below the bean box placement frame, and a spring is provided between the bottom of the push rod and the push rod positioning frame.

[0012] On the left and right sides inside the bean box base, there are four crossbar screw posts, which are fixedly engaged with the first screw holes of the left crossbar of the bean box base and the right crossbar of the bean box base on both sides of the bean box base respectively. The above structure facilitates the removal of the bean box assembly through the left crossbar of the bean box base and the right crossbar of the bean box base on both sides.

[0013] At the bottom of the bean box mounting rack, there is a synchronous motor positioning piece. At the bottom of the synchronous motor positioning piece, there is a synchronous motor and a synchronous motor fixing bracket. The synchronous motor is arranged at the bottom of the synchronous motor fixing piece through the synchronous motor fixing bracket. At the bottom of the synchronous motor fixing bracket, there is a rectangular border with two second screw holes in the middle on one side. The second screw holes of the synchronous motor fixing bracket are correspondingly engaged with the weighing module below. At the other end of the weighing module, there are two third screw holes. The third screw holes of the weighing module are correspondingly engaged with the weighing module fixing seat below. The above structure facilitates the real-time recording of the change in the weight of the beans in the bean box.

[0014] The structure of the present utility model is reasonably designed, has a wide application range, is not prone to bean jamming and outward splashing of the grinder, the bean box assembly is convenient to disassemble and assemble, especially the cooperation and fixing methods between the bean box assembly and the bean box seat assembly, and between the bean box seat assembly and the bean grinder assembly have good stability, and the bean box assembly starts to work only after being accurately in place; it is suitable for use as the bean feeding and grinding mechanism under the bean box of a coffee machine and the structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the three-dimensional structure schematic diagram of the present utility model.

[0016] Figure 2 is Figure 1 the structure schematic diagram of the open state of the bean box assembly.

[0017] Figure 3 is Figure 1 the exploded structure schematic diagram.

[0018] Figure 4 is Figure 3 the bottom structure schematic diagram of the exploded bean box assembly.

[0019] Figure 5 is Figure 3 the internal structure schematic diagram of the bean box.

[0020] Figure 6 is Figure 3 the bottom structure schematic diagram of the bean box mounting rack.

[0021] Figure 7 is Figure 3 the bottom structure schematic diagram of the assembled bean box seat assembly.

[0022] Figure 8 is Figure 2Schematic diagram of the bottom structure of the bean box component after it is opened. The dashed line in the figure is the bottom structure of the bean box placement rack.

[0023] Figure 9 is Figure 8 Schematic top view structure of the bean box seat component and the bean grinder component.

[0024] Figure 10 is Figure 1 Schematic diagram of the internal structure after the bean box is opened and the anti-bean sputtering grille is removed.

[0025] Figure 11 is Figure 1 Schematic bottom view structure. A-A cross-section is made in the figure.

[0026] Figure 12 is Figure 11 Schematic diagram of the internal partial structure in the A-A cross-section state. The dashed line in the figure is the anti-bean sputtering grille.

[0027] Appended drawing numbers and names: 1. Bean box component; 2. Bean box base component; 3. Bean grinder component; 4. Bean box cover component; 5. Anti-bean sputtering grille; 6. Bean box; 601. Positioning screw hole; 602. Ramp; 7. Anti-bean silicone sheet; 701. Mushroom-shaped positioning post; 8. Lower bean gear; 9. Lower cover of the bean box; 901. Lower bean opening; 10. Bean box base; 1001. Rib; 11. Left cross bar of the bean box base; 12. Right cross bar of the bean box base; 13. Snap ring; 14. Magnet; 15. Transmission gear; 16. Bean box placement rack; 1601. Microswitch fixing seat; 1602. Cylindrical sleeve; 17. Microswitch; 18. Push rod; 19. Spring; 20. Push rod positioning frame; 21. Synchronous motor positioning piece; 22. Synchronous motor; 23. Synchronous motor fixing frame; 24. Weighing module; 25. Weighing module fixing seat; 26. Stator support. Detailed implementation manners

[0028] Now, in combination with the appended drawings, the structure and use of the present utility model will be further described. As Figures 1-12As shown in the figure, the mechanism includes a bean box assembly 1, a bean box base assembly 2, and a bean grinder assembly 3. At the upper opening of the bean box 6 of the bean box assembly, there is a bean box cover assembly 4. Inside the bean box, there is an anti-bean sputtering grille 5. At the bottom end corners of the anti-bean sputtering grille, there are four end corner positioning posts respectively, corresponding to the positioning screw holes 601 at the four corners inside the bean box, and they are fixed with screws. On one side of the inclined plane between the through hole where the lower bean gear 8 is arranged and the inner wall inside the bean box, there is a raised slope 602. On one side of the slope, there is a bean inlet, and on the other side of the slope, there are three round holes, which are fixedly matched with the three mushroom-shaped positioning posts 701 on one side of the bean blocking silica gel sheet. The blocking post on the other side of the bean blocking silica gel sheet blocks the bean inlet, and the arched shape of the bean blocking silica gel sheet forms a corresponding match with the slope; at the center of the bottom inside the bean box, there is a lower bean gear. The cylindrical positioning post below the lower bean gear is provided with an annular groove. The cylindrical positioning post below the lower bean gear is inserted into the central hole of the lower bean box cover 9 below, and the three are fixedly matched with a circlip 13. The lower bean box cover is provided with a lower bean opening 901, corresponding to the lower bean opening feature of the lower bean box cover, and a corresponding match is formed by using the snap features of the two; on the left and right sides inside the bean box base 10, there are four cross bar screw posts respectively, which are fixedly matched with the first screw holes of the left cross bar 11 and the right cross bar 12 of the bean box base on both sides of the bean box base. At the bottom of the bean box base, there are two magnets 14, which attract each other corresponding to the other two magnets 14 of the lower bean box placement rack 16 below; at the bottom of the bean box base, there are two rectangular bone position features, which form a corresponding match with the rectangular openings of the lower bean box placement rack below. On both sides of the rectangular opening at the bottom of the bean box placement rack, there is a micro switch fixing seat 1601 respectively. Below the rectangular opening, there are ejector rods 18 respectively. The upper end of the ejector rod is shaped as a rectangle and is inserted into the rectangular opening at the bottom of the bean box placement rack. On the left side of the ejector rod, there is an L-shaped hook, on the right side of the ejector rod, there is a rectangular bump, and below the ejector rod, there is an ejector rod positioning frame 20. The left end of the ejector rod positioning frame is provided with a semicircular opening, which is matched with the lower end of the ejector rod. The ejector rod positioning frame is correspondingly matched with the cylindrical screw post below the bean box placement rack. There is a spring 19 between the lower part of the ejector rod and the ejector rod positioning frame; at the center of the bean box placement rack, there is a circular opening. On both sides of the bottom of the circular opening, there are two installation positioning posts, which correspond to the openings on both sides of the synchronous motor 22 below. The square worm of the synchronous motor passes through the circular opening of the bean box placement rack and is inserted into the transmission gear 15 above. At the same time, the transmission gear is inserted into the protruding cylindrical positioning post below the lower bean gear and forms a fixed match;A synchronous motor positioning frame 23 is provided below the synchronous motor, and an opening of a shape corresponding to the synchronous motor is provided in the middle. The synchronous motor positioning frame is provided with four circular openings to cooperate with the four screw positioning columns at the bottom of the bean box placement frame for fixing. The motor screw holes around the synchronous motor cooperate with the top screw holes at the four screw positioning columns at the bottom of the bean box placement frame. A synchronous motor positioning piece 21 is provided below the bean box placement frame. A circular slot is provided in the middle of the synchronous motor positioning piece to cooperate with the synchronous motor. Four openings are provided around the circular slot to form a corresponding cooperation with the four cylindrical screw columns at the bottom of the bean box placement frame to fix the synchronous motor positioning piece. The bottom of the synchronous motor positioning frame is provided with a rectangular side edge and two second screw holes are provided in the middle of one side to form a corresponding cooperation with the weighing module 24 below. Two third screw holes are provided at the other end of the weighing module to form a corresponding cooperation with the weighing module fixing seat 25 below. The lower bean opening at the cylindrical sleeve 1602 of the bean box placement frame corresponds to the stator bracket 26 at the center of the grinder assembly below. ;

[0029] At the same time, the middle of the lower bean gear is convex upward to form a cone, the conical inclined surface of the lower bean gear is provided with equidistantly distributed bean-pushing ribs, the bottom conical opening is provided with equidistantly distributed gear leaves, the gap between the gear leaves on one side is aligned with the rectangular lower bean opening of the lower cover of the bean box below, the width and length of the lower bean opening are greater than the gap between the gear leaves of the lower bean gear, the gear leaves of the lower bean gear are located in the outer circle groove at the lower bean opening of the lower cover of the bean box, the boss in the middle of the lower cover of the bean box on the inner side of the circle groove is inserted into the bottom conical opening of the lower bean gear, one side of the lower bean opening of the bean box lower cover is convex higher than the outer diameter of the gap between the gear leaves, the inner diameter of the circle groove of the lower cover of the bean box is provided with equidistantly distributed limit blocks, the gap between the gear leaves of the lower bean gear corresponding to the limit block is placed in the circle groove of the lower cover of the bean box, and the limit block of the lower cover of the bean box is buckled with the block groove of the outer diameter of the sleeve raised at the bottom of the bean box.

[0030] The specific implementation plan of the mechanism is as follows: first, put the bean box assembly into the bean box base assembly below, and then put the bean box assembly and the bean box base assembly in from the side at an angle. The outer side surface of the bean box base and the inner side surface of the bean box placement frame are respectively provided with bone tendons, and the coffee beans are placed and positioned along the bone tendons. In this process, the magnet below the bean box base is attracted and fixed by the magnet of the bean box placement frame, and the two bone positions below the bean box base are inserted into the two notches of the bean box placement frame, and the two push rods below the notches are triggered. The push rods are pressed downward by pressure to trigger the micro switch, and the machine enters the working state; then, pour coffee beans into the bean box, and the coffee beans are diverted by the anti-bean splashing grid in the bean box to prevent splashing in the subsequent bean dropping process. The bean dropping gear rotates clockwise, and the gear leaves of the bean dropping gear sweep the coffee beans into the bean dropping port of the lower cover of the bean box and fall into the grinder assembly below. A cylindrical sleeve is provided below the bean box placement frame and embedded in the stator bracket to prevent beans from splashing during the grinding process.

[0031] During use, open the bean hopper cover assembly, put coffee beans above the anti-bean-splashing grille, and after passing through the anti-bean-splashing grille, they gather on the inclined plane inside the bean hopper. Through the rotation and stirring of the bean discharging gear, the coffee beans at the gaps between the gear blades of the bean discharging gear are sent into the bean discharging port and the anti-bean silicone sheet at the bean inlet is opened, and then enter the bean discharging port of the lower cover of the lower bean hopper. At this time, while the weighing module senses the weight change in the bean hopper, the coffee beans enter the cylindrical sleeve of the bean hopper mounting rack from the bean discharging port and fall into the upper and lower conical cutters inside the stator support at the top of the grinder assembly. The coffee beans are ground coarsely and finely by the upper and lower conical cutters and discharged through the powder discharging channel, waiting for further extraction and brewing, or collected and then manually put into the corresponding coffee machine equipment for extraction and brewing.

[0032] To sum up, this mechanism controls the quantity and speed of the beans falling in the bean hopper by adding a silicone baffle, and designs an anti-bean-splashing grille and an anti-bean silicone sheet at the bean inlet of the bean hopper assembly and the grinder assembly to prevent splashing. The lower end of the bean discharging gear is designed with a groove and the bean hopper is integrally fixed with a snap ring, etc., which solves the problems of easy bean jamming during the bean discharging process of existing similar products, easy splashing when entering the grinder, and poor fixation of the cooperation between the bean discharging components.

Claims

1. A coffee machine's bean hopper bean discharging and grinding mechanism, which mechanism comprises a bean box assembly (1), a bean box base assembly (2), and a grinder assembly (3). A bean box cover assembly (4) is provided at the upper opening of the bean hopper (6) of the bean box assembly. A bean discharging gear (8) is provided at the center of the inner bottom of the bean hopper. Below one side of the gear blades that are equidistantly distributed at the bean discharging gear, there is a bean discharging opening (901). The bean discharging opening is embedded in the stator bracket (26) at the top of the grinder assembly through the bean box base (10), the bean box mounting bracket (16), and the cylindrical sleeve (1602) below the bean box mounting bracket. A transmission gear (15) is provided on the square worm at the synchronous motor (22) of the bean box base assembly (2). The synchronous motor of the bean box base assembly drives the bean discharging gear of the bean box assembly to rotate through the square worm and the transmission gear; characterized in that The bean box base (10) is fixedly arranged at the bottom of the bean box lower cover (9) by screws. Two rectangular ribs (1001) are provided at the bottom of the bean box base. The ribs are columnar ribs. The ribs of the bean box base are correspondingly inserted into the rectangular openings at the bean box placement frame (16) of the lower bean box base assembly (2). A microswitch fixing seat (1601) is provided on each side of the rectangular opening at the bottom of the bean box placement frame. A microswitch (17) is provided on each microswitch fixing seat. A push rod (18) is provided below the rectangular opening. The upper end of the push rod is rectangular and inserted into the rectangular opening at the bottom of the bean box placement frame. A spring (19) is provided at each push rod. When the push rods are pressed downward to trigger the corresponding microswitches respectively, the transmission gear (15) is inserted into the cylindrical positioning column at the bottom of the lower bean gear and forms a fixed fit. The microswitches respectively trigger the grinding motor of the bean grinding component (3) and the synchronous motor (22) of the bean box base component to enter the working state.

2. The coffee bean hopper and grinding mechanism of the coffee machine according to claim 1, characterized in that Corresponding ribs are respectively provided on the outer side surface of the bean box base (10) and the inner side surface of the bean box placement frame (16). The ribs are corresponding concave-convex chutes. Open edges are provided at both ends of the inner side surface of the bean box placement frame. The bean box component (1) is obliquely placed into the bean box base component (2) from the side. When the bean box base of the bean box component and the bean box placement frame of the bean box base component are placed and positioned along the ribs, the ribs (1001) of the bean box base form a corresponding fit with the rectangular openings at the bean box placement frame of the lower bean box base component.

3. The coffee bean hopper bean discharging and grinding mechanism according to claim 2, characterized in that At least two magnets (14) are provided at the bottom of the bean box base (10). Another two corresponding magnets are provided at the top of the corresponding bean box placement frame (16). The bean box component (1) is obliquely placed into the bean box base component (2) from the side. When the bean box base of the bean box component and the bean box placement frame of the bean box base component are placed and positioned along the ribs, the magnets at the bottom of the bean box base and the magnets of the lower bean box placement frame attract each other correspondingly.

4. The coffee bean hopper and grinding mechanism of the coffee machine according to claim 1, characterized in that A bean splash-proof grille (5) is provided inside the bean box (6) of the bean box component (1). Four corner positioning columns are respectively provided at the bottom end corners of the bean splash-proof grille. Corresponding to the positioning screw holes (601) at the four corners inside the bean box. When the bean box base (10) is fixedly arranged at the bottom of the bean box lower cover (9) by screws, the screws are connected to the four corner positioning columns at the bottom of the bean splash-proof grille.

5. The coffee bean hopper and grinding mechanism of the coffee machine according to claim 1, characterized in that A raised slope (602) is provided on the inclined plane side between the through hole and the inner wall where the lower bean gear (8) is arranged inside the bean box (6) of the bean box component (1). An inlet is provided on one side of the slope. Three round holes are provided on the other side of the slope. The three round holes are fixedly fitted with three mushroom-shaped positioning columns (701) on one side of the bean blocking silica gel sheet (7) at the same time. The other side of the bean blocking silica gel sheet blocks the inlet. The arched shape of the bean blocking silica gel sheet forms a corresponding fit with the slope.

6. The coffee bean hopper and grinding mechanism of the coffee machine according to claim 1, characterized in that The cylindrical positioning post protruding downward from the lower bean gear (8) is inserted into the central hole of the lower cover (9) of the lower bean box and fixed and fitted together with a circlip (13). One side of the lower cover of the bean box is provided with the lower bean opening (901), and the lower bean opening extends out of the bean box base (10) at the bottom of the lower cover of the bean box.

7. The coffee bean hopper and grinding mechanism of the coffee machine according to claim 6, characterized in that The middle of the lower bean gear (8) bulges upward into a cone. The conical inclined surface of the lower bean gear is provided with equally spaced bean-pushing ribs, and the bottom conical opening is provided with equally spaced gear blades. The gap between one side of the gear blades is aligned with the rectangular lower bean opening (901) of the lower cover (9) of the lower bean box below. The width and length of the lower bean opening are greater than the gap between the gear blades of the lower bean gear. The gear blades of the lower bean gear are located in the outer ring groove at the lower bean opening of the lower cover of the bean box. The boss in the middle of the lower cover of the bean box inside the ring groove is sleeved into the bottom conical opening of the lower bean gear. The protrusion on one side of the lower bean opening of the lower cover of the bean box is higher than the outer diameter of the gap between the gear blades. The inner diameter of the ring groove opening of the lower cover of the bean box is provided with equally spaced limit blocks. The gap between the gear blades of the lower bean gear is correspondingly placed into the ring groove of the lower cover of the bean box, and the limit block of the lower cover of the bean box is buckled with the outer diameter block groove of the protruding sleeve at the bottom of the bean box (6).

8. The coffee bean hopper discharging and grinding mechanism of the coffee machine according to claim 1, wherein The left side of the ejector rod (18) is provided with an L-shaped catch, the right side of the ejector rod is provided with a rectangular bump, and the lower part of the ejector rod is provided with an ejector rod positioning frame (20). The left end of the ejector rod positioning frame is provided with a semicircular opening, and the semicircular opening of the ejector rod positioning frame is matched with the lower end of the ejector rod. The ejector rod positioning frame is correspondingly matched with the cylindrical screw post below the bean box mounting frame (16). A spring (19) is arranged between the lower part of the ejector rod and the ejector rod positioning frame.

9. The coffee bean hopper and grinding mechanism of the coffee machine according to claim 1, characterized in that Four cross-bar screw posts are arranged on the left and right sides inside the bean box base (10) and are fixedly fitted with the first screw holes of the left cross-bar (11) of the bean box base and the right cross-bar (12) of the bean box base on both sides of the bean box base respectively.

10. The coffee bean hopper and grinding mechanism of the coffee machine according to claim 1, characterized in that The bottom of the bean box mounting frame (16) is provided with a synchronous motor positioning piece (21). The bottom of the synchronous motor positioning piece is provided with a synchronous motor (22) and a synchronous motor fixing frame (23). The synchronous motor is arranged at the bottom of the synchronous fixing piece through the synchronous motor fixing frame. The bottom of the synchronous motor fixing frame is provided with a rectangular border and two second screw holes are arranged in the middle of one side. The second screw holes of the synchronous motor fixing frame are correspondingly matched with the weighing module (24) below. The other end of the weighing module is provided with two third screw holes, and the third screw holes of the weighing module are correspondingly matched with the weighing module fixing seat (25) below.

Images