CN209966136U

CN209966136U - Grinding device of coffee machine

Info

Publication number: CN209966136U
Application number: CN201920452244.1U
Authority: CN
Inventors: 万锐; 林志镛
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-01-21
Anticipated expiration: 2029-04-03

Abstract

A grinding device of a coffee machine comprises a bean grinding support, a bean box, a coffee powder butt-joint box, a driving component, a speed changing box component and a conical cutter component, wherein the bean box, the coffee powder butt-joint box, the driving component, the speed changing box component and the conical cutter component are arranged on the bean grinding support; the gear box subassembly, awl sword subassembly respectively with grind the beans wheel subassembly each other for coaxial setting, be provided with between angle adjusting part and the mill beans support and rotate the fitting piece, and the two is connected for rotating through rotating the fitting piece each other. The utility model realizes the fine grinding of coffee beans by arranging the outer and inner adjusting rings on the grinding bracket to adjust the up-and-down displacement between the bean grinding wheel component and the conical cutter component, further controlling the clearance between the bean grinding wheel component and the conical cutter component; in addition, the bean grinding wheel component is unscrewed, so that the bean grinding wheel component and the conical cutter component can be separated from each other, and the residual powder is convenient to clean.

Description

Grinding device of coffee machine

Technical Field

The utility model relates to a coffee machine, in particular to a grinding device of a coffee machine.

Background

Chinese patent document No. CN105662156A discloses a full-automatic water-feeding bean-grinding coffee machine in 2016, 6, 15, which comprises a water tank, a machine body, a water supply assembly, a grinding assembly and a brewing assembly; the machine body is at least internally provided with a brewing chamber and a grinding chamber, and the brewing assembly and the grinding assembly are respectively and correspondingly arranged in the brewing chamber and the grinding chamber; the brewing assembly comprises a rotating piece which is rotatably arranged, at least one brewing cavity is arranged in the rotating piece, and an opening of the brewing cavity rotates in a circular track; the brewing assembly is at least provided with a brewing head opening and a discharge hole, and a water outlet of the water supply assembly and a powder outlet of the grinding assembly are respectively connected with an opening of the brewing cavity of the barrel through the brewing head opening and the discharge hole; the opening of the brewing cavity rotates along with the rotating piece, so that the opening of the brewing cavity is circularly communicated with the discharge hole and the opening of the brewing head in sequence; a liquid discharge hole is formed in the brewing cavity far away from the opening and communicated with the coffee outlet. The structure is stated to be provided with the rotating piece in a rotating way, so that the feeding, brewing and discharging procedures of the coffee machine can be automatically, continuously and circularly carried out, and the full-automatic requirement is realized. However, the coffee grinder has a complicated and bulky structure, which results in a bulky coffee grinder, low transmission efficiency and poor grinding effect, and cannot meet the use requirements of users. Therefore, further improvements are necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure is reasonable, the performance is excellent, the assembly is swift, the wholeness is strong, transmission efficiency is high, low in manufacturing cost, easy production, easy realization, small and safe and reliable's grinder of coffee machine to overcome the weak point among the prior art.

The grinding device of the coffee machine designed according to the purpose comprises a bean grinding support, a bean box, a coffee powder butt-joint box, a driving assembly, a speed changing box assembly and a conical cutter assembly, wherein the bean box, the coffee powder butt-joint box, the driving assembly, the speed changing box assembly and the conical cutter assembly are arranged on the bean grinding support, and the driving assembly and the conical cutter assembly are respectively in driving connection with the speed changing box assembly; the gear box subassembly, awl sword subassembly respectively with grind the beans wheel subassembly each other for coaxial setting, be provided with between angle adjusting part and the mill beans support and rotate the fitting piece, and the two is connected for rotating through rotating the fitting piece each other.

The angle adjusting assembly comprises an outer adjusting ring and an inner adjusting ring which are connected with each other, the bean grinding support is provided with an outer step, and the outer adjusting ring is sleeved on the outer side of the outer step; a lower step is arranged on the outer side of the outer adjusting ring, and adjusting ring angle sheets are sleeved on the left side and the right side of the lower step; the outer adjusting ring is provided with more than one upper step corresponding to the bean box, and each upper step is uniformly provided with an assembling hole for locking the bean box; the inner adjusting ring is sleeved in the bean grinding support. The outer adjusting ring is arranged on the outer side of the grinding support, the left side and the right side of the outer adjusting ring are respectively fixed on the grinding support through adjusting ring angle sheets, and the adjusting ring angle sheets are locked on the grinding support through screws.

Each upper step is arranged at intervals to form a gap for avoiding the vacancy; more than one assembling position is arranged on the outer side of the outer step in an extending mode, and the angle piece of the adjusting ring is connected with the assembling position; a plurality of adjusting holes are uniformly distributed on the adjusting ring angle pieces, and adjusting ring limiting pieces are connected to the adjusting holes; one side of the angle sheet of the adjusting ring is provided with an adjusting ejector rod and an adjusting spring; the adjusting spring is sleeved outside the adjusting ejector rod; one end elastic fit of the adjusting spring is arranged on the adjusting ejector rod, the other end elastic fit is arranged on the adjusting ring angle piece, the adjusting ring angle piece is arranged on the bean grinding support, one end of the adjusting ring angle piece is elastically connected with the adjusting spring, adjusting teeth are arranged in the middle of the adjusting ring angle piece, adjusting teeth are arranged on the outer side of the outer adjusting ring corresponding to the adjusting teeth, the adjusting teeth are meshed with the adjusting teeth, and prompt sounds are emitted in rotation. Every upward step on the outer adjusting ring is each other for the interval setting, forms the breach of keeping away the vacancy, and the breach is used for putting into lock screw instrument locking adjusting ring angle piece, the lower step carries out 360 degrees rotations along grinding the support.

The outer side of the inner adjusting ring is provided with a segmented external thread, the inner adjusting ring is internally provided with an internal thread, and the segmented external thread and the internal thread are in threaded connection with each other, so that the inner adjusting ring rotates up and down in the outer adjusting ring; the bean grinding support is of a hollow structure to form a cavity, the inner adjusting ring is limited in the cavity, and a sealing ring is sleeved on the outer side of the inner adjusting ring.

The internal adjusting ring is provided with more than one guide rail bone position, a limiting groove is arranged in the bean grinding support corresponding to the guide rail bone position, and the guide rail bone position is inserted into the limiting groove. When the outer adjusting ring is rotated, the inner adjusting ring can move up and down under the action of the limiting groove, the gap between the grinding wheel assembly and the conical cutter assembly is controlled, and the thickness of coffee powder is adjusted.

The bean grinding wheel assembly is further arranged in the cavity and comprises a bean grinding wheel fixing frame, a bean grinding wheel and a grinding wheel handle, a positioning groove is formed in the outer side of the bean grinding wheel fixing frame, a positioning bone is arranged on the inner side of the inner adjusting ring corresponding to the positioning groove, and the positioning bone is limited to rotate in the positioning groove; a buckling position for buckling the bean grinding wheel is arranged in the bean grinding wheel fixing frame; the bean grinding wheel fixing frame and the bean grinding wheel are buckled with each other, and deviation is respectively arranged between the bean grinding wheel fixing frame and the bean grinding wheel; the bean grinding wheel fixing frame is provided with a connecting block for mounting a grinding wheel handle; the grinding wheel is provided with a sealing groove on the outer side, and a sealing ring is sleeved on the sealing groove. The positioning bone of the inner adjusting ring is limited and rotated in the positioning groove of the bean grinding wheel fixing frame, when coffee powder is cleaned, the inner adjusting ring and the outer adjusting ring do not need to be unscrewed, and only the bean grinding wheel assembly needs to be unscrewed and the grinding wheel handle is taken up, so that the bean grinding wheel and the conical cutter can be separated; the residual coffee powder is convenient to clean.

The bean grinding wheel component is fixedly arranged in the cavity, the bean grinding wheel is fixedly arranged in the cavity through the bean grinding wheel fixing frame, the funnel-shaped cutter grinding part is arranged in the bean grinding wheel, the conical cutter grinding part and the funnel-shaped cutter grinding part of the conical cutter are matched with each other to realize the bean grinding operation of the coffee machine, and the upper part of the conical cutter grinding part penetrates through the lower part of the funnel-shaped cutter grinding part and at least partially extends out of the upper part of the funnel-shaped cutter grinding part.

The driving assembly comprises a driving motor, a small belt pulley, a large belt pulley and a belt, the power output end of the driving motor is in driving connection with the small belt pulley, the small belt pulley is in driving connection with the large belt pulley through the belt, a driving gear is arranged on the large belt pulley, and the driving gear is in driving connection with the gearbox assembly; the transmission assembly comprises a planetary gear carrier, a planetary gear pin shaft, a planetary gear, balls and a planetary gear box, wherein the planetary gear is provided with more than one and is rotatably arranged on the outer side of the planetary gear carrier through the planetary gear pin shaft, the inner wall of the planetary gear box is provided with an inner tooth root, a driving tooth of a large belt pulley is inserted in the center of the planetary gear carrier and is in driving connection with one side of the planetary gear, the other side of the planetary gear is in driving connection with the inner tooth root of the planetary gear box, the balls are arranged between the planetary gear carrier and the planetary gear box in a rolling manner, and the planetary gear carrier is arranged in a cavity through the matching rotation of the planetary gear, the balls and the; and a sheep terry is also arranged between the planetary gear box and the cavity.

A conical cutter assembly which is in driving connection with the gearbox assembly is further arranged in the cavity of the bean grinding support, and comprises a conical cutter screw, a conical cutter cap, a conical cutter, a fixed shaft and a powder sweeping plate; the powder sweeping device is characterized in that a convex column is arranged on the planet gear carrier towards the direction of the powder sweeping plate and is inserted in the powder sweeping plate through the convex column, the planet gear carrier and the powder sweeping plate are in driving connection with each other through the convex column, a convex shaft is arranged at the center of the powder sweeping plate towards the direction of the conical cutter and is inserted in the conical cutter through the convex shaft, a fixed shaft is arranged between the conical cutter and the powder sweeping plate, the conical cutter and the powder sweeping plate are in driving connection with each other through the fixed shaft, the conical cutter screw and the conical cutter cap are located above the conical cutter, the outer side of the conical cutter are in spiral distribution, a conical cutter grinding part is arranged on the periphery of the conical cutter, and the conical cutter screw sequentially penetrates through the conical cutter cap, the conical cutter, the convex shaft of the powder sweeping plate and the planet gear carrier so as to realize the mutual fixation of the.

The upper end of the bean grinding support is provided with a bean box assembly part for placing coffee beans, a bean box is mounted on the bean box assembly part, and the bean box is detachably arranged at the upper end of the bean grinding support through the bean box assembly part; the bean box is also provided with a bean grinding cover, the bean grinding cover is provided with a plurality of hole parts, coffee beans enter the cavity of the bean grinding support through the hole parts and are ground through the conical cutter and the bean grinding wheel on the bean grinding support; the coffee powder butt-joint box is characterized by further comprising a coffee powder butt-joint box, wherein a powder adding port and a sealing piece which are used for independently placing coffee powder are arranged at the upper end of the coffee powder butt-joint box, the sealing piece is arranged on the powder adding port, a centrifugal opening is formed in one side of the cavity, a through hole is formed in one side of the coffee powder butt-joint box, and the coffee powder butt-joint box is communicated with the centrifugal opening through the through hole; the powder sweeping plate is rotationally arranged in the cavity through the driving of the planet gear carrier, the side part of the powder sweeping plate is provided with a plurality of powder sweeping parts, and the powder sweeping parts are arranged on one side of the centrifugal opening; the powder sweeping plate sweeps the ground coffee powder into the coffee powder butt-joint box through the centrifugal opening and the through hole under the centrifugal action of the powder sweeping part in the rotating process.

The utility model realizes the fine grinding of coffee beans by arranging the outer and inner adjusting rings on the grinding bracket to adjust the up-and-down displacement between the bean grinding wheel component and the conical cutter component, further controlling the clearance between the bean grinding wheel component and the conical cutter component; in addition, the bean grinding wheel component is unscrewed, so that the bean grinding wheel component and the conical cutter component can be separated from each other, and the residual powder is convenient to clean.

Drawings

Fig. 1 is a schematic view of an assembly and disassembly structure of a bean grinding wheel assembly and an angle adjusting assembly on a grinding support according to an embodiment of the present invention.

Fig. 2 is a schematic view of the three-dimensional structure of the bean grinding wheel assembly and the angle adjusting assembly of the present invention.

Fig. 3 is a schematic perspective view of a grinding device of a coffee machine according to an embodiment of the present invention.

Fig. 4 is a schematic perspective view of the bean grinding wheel assembly and the angle adjusting assembly assembled and disassembled in another direction according to an embodiment of the present invention.

Fig. 5 is an exploded view of the driving assembly, the gear box assembly and the awl knife assembly according to an embodiment of the present invention.

Fig. 6 is a schematic view illustrating an exploded assembly structure of a grinding device of a coffee maker according to an embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view of a grinding device of a coffee machine according to an embodiment of the present invention.

In the figure, 1 is a bean grinding bracket, 1.1 is an outer step, 1.2 is a cavity, 1.3 is an assembly position, 2 is a driving component, 2.1 is a driving motor, 2.2 is a small belt pulley, 2.3 is a large belt pulley, 2.4 is a belt, 3 is a speed changing box component, 3.1 is a planetary gear box, 4 is a cone cutter component, 4.1 is a cone cutter cap, 4.2 is a cone cutter, 4.3 is a fixed shaft, 4.4 is a powder sweeping plate, 5 is a bean grinding wheel component, 5.1 is a bean grinding wheel fixing frame, 5.11 is a positioning groove, 5.12 is a buckling position, 5.13 is a connecting block, 5.2 is a bean grinding wheel, 5.21 is a sealing groove, 5.3 is a grinding wheel handle, 6 is an angle adjusting component, 6.1 is an outer adjusting ring, 6.11 is a lower step, 6.12 is an upper step, 6.13 is an assembly hole, 6.14 is a notch, 6.15 is an inner thread, 6.2 is an inner thread adjusting ring, 6.1 is an outer adjusting ring, 6.11 is an outer thread adjusting ring, 7.12 is an outer thread adjusting ring, 7.7 adjusting plate is an outer thread adjusting ring, 7, 9 is an adjusting ejector rod, 10 is an adjusting spring, and 11 is a wool ring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1-7, a grinding device of a coffee machine comprises a bean grinding bracket 1, a bean box, a coffee powder butt-joint box, a driving component 2, a gear box component 3 and a conical cutter component 4 which are arranged on the bean grinding bracket 1, wherein the driving component 2 and the conical cutter component 4 are respectively in driving connection with the gear box component 3, the bean grinding bracket 1 is also provided with a bean grinding wheel component 5 and an angle adjusting component 6 for adjusting the vertical positions of the bean grinding wheel component 5 and the conical cutter component 4; gearbox subassembly 3, awl sword subassembly 4 are the coaxial setting each other with grinding bean wheel subassembly 5 respectively, are provided with between angle adjusting part 6 and the grinding bean support 1 and rotate the fitting piece, and the two is connected for rotating each other through rotating the fitting piece.

Further, the angle adjusting assembly 6 comprises an outer adjusting ring 6.1 and an inner adjusting ring 6.2 which are connected with each other, the bean grinding support 1 is provided with an outer step 1.1, and the outer adjusting ring 6.1 is sleeved on the outer side of the outer step 1.1; a lower step 6.11 is arranged on the outer side of the outer adjusting ring 6.1, and adjusting ring angle sheets 7 are sleeved on the left side and the right side of the lower step 6.11; the outer adjusting ring 6.1 is provided with more than one upper step 6.12 corresponding to the bean box, and each upper step 6.12 is uniformly provided with an assembling hole 6.13 for locking the bean box; the inner adjusting ring 6.2 is sleeved in the bean grinding bracket 1.

Furthermore, each upper step 6.12 is arranged at intervals to form a gap 6.14 avoiding the vacancy; more than one assembling position 1.3 is arranged on the outer side of the outer step 1.1 in an extending way, and the angle piece 7 of the adjusting ring is connected with the assembling position 1.3; a plurality of adjusting holes 7.1 are uniformly distributed on the adjusting ring angle sheets 7, and adjusting ring limiting sheets 8 are connected to the adjusting holes 7.1; one side of the adjusting ring angle sheet 7 is provided with an adjusting ejector rod 9 and an adjusting spring 10; the adjusting spring 10 is sleeved on the outer side of the adjusting ejector rod 9; one end elastic fit of adjusting spring 10 is on adjusting ejector pin 9, and other end elastic fit is on adjusting ring angle piece 7, and adjusting ring angle piece 7 sets up on grinding the

beans support

1, and 7 one end of adjusting ring angle piece and adjusting spring 10 elastic connection, and adjusting ring angle piece 7 middle part is provided with the regulation tooth, and the outside of outer adjusting ring 6.1 corresponds the regulation tooth and is provided with the regulation cooperation tooth, adjusts tooth and regulation cooperation tooth intermeshing.

Furthermore, a segmented external thread 6.22 is arranged on the outer side of the inner adjusting ring 6.2, an internal thread 6.15 is arranged in the outer adjusting ring 6.1, and the segmented external thread 6.22 and the internal thread 6.15 are in threaded connection with each other, so that the inner adjusting ring 6.2 rotates up and down in the outer adjusting ring 6.1; the grinding bean support 1 is internally provided with a hollow structure to form a cavity 1.2, the inner adjusting ring 6.2 is limited in the cavity 1.2, and the outer side of the inner adjusting ring 6.2 is sleeved with a sealing ring.

Furthermore, the inner adjusting ring 6.2 is provided with more than one guide rail bone position 6.21, a limiting groove is arranged in the bean grinding bracket 1 corresponding to the guide rail bone position 6.21, and the guide rail bone position 6.21 is inserted into the limiting groove.

Furthermore, a bean grinding wheel assembly 5 is further arranged in the cavity 1.2, the bean grinding wheel assembly 5 further comprises a bean grinding wheel fixing frame 5.1, a bean grinding wheel 5.2 and a grinding wheel handle 5.3, a positioning groove 5.11 is formed in the outer side of the bean grinding wheel fixing frame 5.1, a positioning bone 6.23 is arranged on the inner side of the inner adjusting ring 6.2 corresponding to the positioning groove 5.11, and the positioning bone 6.23 rotates in the positioning groove 5.11 in a limiting manner; a buckling position 5.12 for buckling the bean grinding wheel 5.2 is arranged in the bean grinding wheel fixing frame 5.1; the bean grinding wheel fixing frame 5.1 and the bean grinding wheel 5.2 are buckled with each other, and deviation is respectively arranged between the two; the bean grinding wheel fixing frame 5.1 is provided with a connecting block 5.13 for mounting a grinding wheel handle 5.3; grind the beans wheel 5.2 outside and be provided with seal groove 5.21, seal groove 5.21 cover is equipped with the sealing washer.

Furthermore, the driving assembly 2 comprises a driving motor 2.1, a small belt pulley 2.2, a large belt pulley 2.3 and a belt 2.4, the power output end of the driving motor 2.1 is in driving connection with the small belt pulley 2.2, the small belt pulley 2.2 is in mutual connection with the large belt pulley 2.3 through the belt 2.4, the large belt pulley 2.3 is provided with driving teeth, the driving teeth are in driving connection with the gearbox assembly 3, wherein the small belt pulley 2.2, the large belt pulley 2.3 and the belt 2.4 are arranged on the same horizontal line, and the gearbox assembly 3 is arranged in the cavity 1.2 of the bean grinding support 1; the gearbox component 3 comprises a planet gear carrier, a planet gear pin shaft, a planet gear, balls and a planet gear box 3.1, wherein the planet gear is provided with more than one and is rotatably arranged at the outer side of the planet gear carrier through the planet gear pin shaft, the inner wall of the planet gear box 3.1 is provided with an inner tooth root, a driving tooth of a large belt pulley 2.3 is inserted at the center of the planet gear carrier and is in driving connection with one side of the planet gear, the other side of the planet gear is in driving connection with the inner tooth root of the planet gear box 3.1, the balls are arranged between the planet gear carrier and the planet gear box 3.1 in a rolling way, and the planet gear carrier is rotatably arranged in the cavity 1.2 through the matching of the planet gear, the balls and the planet gear box; and a wool loop 11 is also arranged between the planetary gear box 3.1 and the cavity 1.2.

Further, a conical cutter assembly 4 which is in driving connection with the gearbox assembly 3 is further arranged in the cavity 1.2 of the bean grinding support 1, and the conical cutter assembly 4 comprises a conical cutter screw, a conical cutter cap 4.1, a conical cutter 4.2, a fixing shaft 4.3 and a powder sweeping plate 4.4; the planet gear carrier is provided with convex columns towards the direction of the powder sweeping plate 4.4 and is inserted on the powder sweeping plate 4.4 through the convex columns, the planet gear carrier and the powder sweeping plate 4.4 are in driving connection with each other through the convex columns, a convex shaft is arranged at the center of the powder sweeping plate 4.4 towards the direction of the conical cutter and is inserted on the conical cutter 4.2 through the convex shaft, a fixing shaft 4.3 is arranged between the conical cutter 4.2 and the powder sweeping plate 4.4, the conical cutter 4.2 and the powder sweeping plate 4.4 are in driving connection with each other through the fixing shaft 4.3, the conical cutter screw and the conical cutter cap 4.1 are positioned above the conical cutter 4.2, the outer side of the conical cutter 4.2 is in spiral distribution, the periphery of the conical cutter 4.2 is provided with a conical cutter grinding part, and the conical cutter screw sequentially penetrates through the conical cutter cap 4.1, the conical cutter 4.2, the convex shaft of the powder sweeping plate 4.4 and the planet gear carrier to realize the mutual fixing of the conical cutter cap 4.1, the conical cutter 4.2, the powder sweeping plate 4..

Furthermore, a bean box assembly part for placing coffee beans is arranged at the upper end of the bean grinding support 1, a bean box is mounted on the bean box assembly part, and the bean box is detachably arranged at the upper end of the bean grinding support 1 through the bean box assembly part; the bean box is also provided with a bean grinding cover, the bean grinding cover is provided with a plurality of hole parts, coffee beans enter the cavity 1.2 of the bean grinding support 1 through the hole parts and are ground through the conical cutter 4.2 and the bean grinding wheel 5.2 on the bean grinding support 1; the coffee powder butt-joint box is characterized by further comprising a coffee powder butt-joint box, a powder adding port for independently placing coffee powder and a sealing piece are arranged at the upper end of the coffee powder butt-joint box, the sealing piece is arranged on the powder adding port, a centrifugal opening is formed in one side of the cavity 1.2, a through port is further formed in one side of the coffee powder butt-joint box, and the coffee powder butt-joint box is communicated with the centrifugal opening through the through port; the powder sweeping plate 4.4 is rotationally arranged in the cavity 1.2 through the driving of the planet gear carrier, a plurality of powder sweeping parts are arranged on the side part of the powder sweeping plate 4.4, and the powder sweeping parts are arranged on one side of the centrifugal opening; the powder sweeping plate 4.4 sweeps the ground coffee powder into the coffee powder butt-joint box through the centrifugal opening and the through hole under the centrifugal action of the powder sweeping part in the rotating process.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A grinding device of a coffee machine comprises a bean grinding support (1), a bean box, a coffee powder butt joint box, a driving assembly (2), a gear box assembly (3) and a conical cutter assembly (4), wherein the bean box, the coffee powder butt joint box, the driving assembly (2), the gear box assembly (3) and the conical cutter assembly (4) are arranged on the bean grinding support (1), and the driving assembly (2) and the conical cutter assembly (4) are respectively in driving connection with the gear box assembly (3) and are characterized in that the bean grinding support (1) is also provided with a bean grinding wheel assembly (5) and an angle adjusting assembly (6) for adjusting the vertical positions of the bean grinding wheel assembly (5); gearbox subassembly (3), awl sword subassembly (4) are the coaxial setting each other with grinding beans wheel subassembly (5) respectively, are provided with the running fit piece between angle adjusting part (6) and the grinding beans support (1), and the two is connected for rotating through the running fit piece each other.

2. The grinder assembly of the coffee machine according to claim 1, characterized in that the angle adjusting assembly (6) comprises an outer adjusting ring (6.1) and an inner adjusting ring (6.2) which are connected with each other, the bean grinding support (1) is provided with an outer step (1.1), and the outer adjusting ring (6.1) is sleeved outside the outer step (1.1); a lower step (6.11) is arranged on the outer side of the outer adjusting ring (6.1), and adjusting ring angle sheets (7) are sleeved on the left side and the right side of the lower step (6.11); the outer adjusting ring (6.1) is provided with more than one upper step (6.12) corresponding to the bean box, and each upper step (6.12) is uniformly provided with an assembling hole (6.13) for locking the bean box; the inner adjusting ring (6.2) is sleeved in the bean grinding bracket (1).

3. Grinding unit for a coffee machine according to claim 2, characterized in that said upper steps (6.12) are spaced from each other to form a gap (6.14) avoiding a space; more than one assembling position (1.3) is arranged outside the outer step (1.1) in an extending way, and the angle piece (7) of the adjusting ring is connected with the assembling position (1.3); a plurality of adjusting holes (7.1) are uniformly distributed on the adjusting ring angle sheets (7), and adjusting ring limiting sheets (8) are connected to the adjusting holes (7.1); an adjusting ejector rod (9) and an adjusting spring (10) are arranged on one side of the adjusting ring angle sheet (7); the adjusting spring (10) is sleeved on the outer side of the adjusting ejector rod (9); one end elastic fit of regulating spring (10) is on adjusting ejector pin (9), other end elastic fit is on regulation circle angle piece (7), regulation circle angle piece (7) set up on grinding the beans support (1), and regulation circle angle piece (7) one end and regulating spring (10) elastic connection, regulation circle angle piece (7) middle part is provided with the regulation tooth, the outside of outer regulation circle (6.1) corresponds the regulation tooth and is provided with the regulation cooperation tooth, adjust the tooth and adjust cooperation tooth intermeshing.

4. The grinding device of the coffee machine as claimed in claim 2, characterized in that the outer side of the inner adjusting ring (6.2) is provided with a segmented external thread (6.22), the inner adjusting ring (6.1) is provided with an internal thread (6.15), and the segmented external thread (6.22) and the internal thread (6.15) are in threaded connection with each other, so that the inner adjusting ring (6.2) rotates up and down in the outer adjusting ring (6.1); the bean grinding support (1) is internally of a hollow structure to form a cavity (1.2), the inner adjusting ring (6.2) is limited in the cavity (1.2), and the outer side of the inner adjusting ring (6.2) is sleeved with a sealing ring.

5. A grinder assembly for coffee makers as claimed in claim 4, wherein the inner adjusting ring (6.2) is provided with more than one guide rib (6.21), the bean grinding stand (1) is provided with a limit groove corresponding to the guide rib (6.21), and the guide rib (6.21) is inserted into the limit groove.

6. The grinding device of the coffee machine according to claim 4, characterized in that the cavity (1.2) is further provided with a bean grinding wheel assembly (5), the bean grinding wheel assembly (5) further comprises a bean grinding wheel fixing frame (5.1), a bean grinding wheel (5.2) and a grinding wheel handle (5.3), the outer side of the bean grinding wheel fixing frame (5.1) is provided with a positioning groove (5.11), the inner side of the inner adjusting ring (6.2) is provided with a positioning bone (6.23) corresponding to the positioning groove (5.11), and the positioning bone (6.23) is limited to rotate in the positioning groove (5.11); a buckling position (5.12) for buckling the bean grinding wheel (5.2) is arranged in the bean grinding wheel fixing frame (5.1); the bean grinding wheel fixing frame (5.1) and the bean grinding wheel (5.2) are buckled with each other, and deviation is respectively arranged between the bean grinding wheel fixing frame and the bean grinding wheel; the bean grinding wheel fixing frame (5.1) is provided with a connecting block (5.13) for installing a grinding wheel handle (5.3); grind beans wheel (5.2) outside and be provided with seal groove (5.21), seal groove (5.21) cover is equipped with the sealing washer.

7. The grinder of the coffee machine according to claim 1, characterized in that the drive assembly (2) comprises a drive motor (2.1), a small belt pulley (2.2), a large belt pulley (2.3) and a belt (2.4), the power output end of the drive motor (2.1) and the small belt pulley (2.2) are in driving connection with each other, the small belt pulley (2.2) and the large belt pulley (2.3) are connected with each other through the belt (2.4), the large belt pulley (2.3) is provided with a driving gear, the driving gear and the gearbox assembly (3) are in driving connection with each other, wherein the small belt pulley (2.2), the large belt pulley (2.3) and the belt (2.4) are arranged on the same horizontal line, and the gearbox assembly (3) is arranged in the cavity (1.2) of the bean grinding support (1); the speed changing box component (3) comprises a planetary gear carrier, a planetary gear pin shaft, a planetary gear, balls and a planetary gear box (3.1), wherein more than one planetary gear is arranged on the planetary gear and is rotationally arranged on the outer side of the planetary gear carrier through the planetary gear pin shaft, the inner wall of the planetary gear box (3.1) is provided with an inner tooth root, a driving tooth of a large belt pulley (2.3) is inserted in the center of the planetary gear carrier and is in driving connection with one side of the planetary gear, the other side of the planetary gear is in driving connection with the inner tooth root of the planetary gear box, the balls are arranged between the planetary gear carrier and the planetary gear box (3.1) in a rolling manner, and the planetary gear carrier is arranged in a cavity (1.2) through the matching rotation of the planetary gear, the balls and the planetary gear; and a sheep terry (11) is also arranged between the planetary gear box (3.1) and the cavity (1.2).

8. The grinding device of the coffee machine according to claim 7, characterized in that a conical cutter component (4) which is in driving connection with the gearbox component (3) is further arranged in the cavity (1.2) of the bean grinding bracket (1), and the conical cutter component (4) comprises a conical cutter screw, a conical cutter cap (4.1), a conical cutter (4.2), a fixed shaft (4.3) and a powder sweeping plate (4.4); the powder sweeping machine is characterized in that a convex column is arranged on the planet gear carrier in the direction towards the powder sweeping plate (4.4) and is inserted into the powder sweeping plate (4.4) through the convex column, the planet gear carrier and the powder sweeping plate (4.4) are in driving connection with each other through the convex column, a convex shaft is arranged in the center of the powder sweeping plate (4.4) in the direction towards the conical cutter and is inserted into the conical cutter (4.2) through the convex shaft, a fixed shaft (4.3) is arranged between the conical cutter (4.2) and the powder sweeping plate (4.4), the conical cutter (4.2) and the powder sweeping plate (4.4) are in driving connection with each other through the fixed shaft (4.3), the conical cutter screw and the conical cutter cap (4.1) are located above the conical cutter (4.2), the outer side of the conical cutter (4.2) is in spiral distribution, the periphery of the conical cutter (4.2) is provided with a conical cutter grinding part, the conical cutter screw sequentially penetrates through the conical cutter cap (4.1), the conical cutter (4.2), the convex shaft of the powder sweeping plate (4.4) and the conical cutter cap (4.1), and, The conical cutter (4.2), the powder sweeping plate (4.4) and the planet gear carrier are fixed with each other.

9. The grinder assembly of the coffee maker as claimed in claim 8, wherein the upper end of the bean grinding support (1) is provided with a bean box assembly part for placing coffee beans, a bean box is mounted on the bean box assembly part, and the bean box is detachably arranged at the upper end of the bean grinding support (1) through the bean box assembly part; the bean box is also provided with a bean grinding cover, the bean grinding cover is provided with a plurality of hole parts, coffee beans enter a cavity (1.2) of the bean grinding support (1) through the hole parts and are ground through a conical cutter (4.2) and a bean grinding wheel (5.2) on the bean grinding support (1); the coffee powder butt-joint box is characterized by further comprising a coffee powder butt-joint box, a powder adding port for independently placing coffee powder and a sealing piece are arranged at the upper end of the coffee powder butt-joint box, the sealing piece is arranged on the powder adding port, a centrifugal opening is formed in one side of the cavity (1.2), a through port is further formed in one side of the coffee powder butt-joint box, and the coffee powder butt-joint box is communicated with the centrifugal opening through the through port; the powder sweeping plate (4.4) is rotationally arranged in the cavity (1.2) through the driving of the planet gear carrier, a plurality of powder sweeping parts are arranged on the side part of the powder sweeping plate (4.4), and the powder sweeping parts are arranged on one side of the centrifugal opening; the powder sweeping plate (4.4) sweeps the ground coffee powder into the coffee powder butt-joint box through the centrifugal opening and the through hole under the centrifugal action of the powder sweeping part in the rotating process.