A coffee grinder mechanism and coffee maker

Abstract

The utility model discloses a kind of bean grinding mechanism and coffee machine, to let cutter head and mounting seat can be dismantled, it is convenient to clean concave cavity and bean grinder knife;Bean grinding mechanism includes base, collecting cylinder, driving assembly, mounting seat, adjusting disc and adjusting assembly;Base is equipped with concave cavity, concave cavity is equipped with bean grinder knife and cutter head, cutter head is arranged around bean grinder knife and is coaxial with bean grinder knife, driving assembly is connected with bean grinder knife to drive bean grinder knife rotation;Grind cavity is formed between cutter head and bean grinder knife, grind cavity is butt joint with bean outlet, collecting cylinder is connected with concave cavity to receive coffee powder;Mounting seat and adjusting assembly are set on base, adjusting disc is rotatably set on base, cutter head is detachably set in mounting seat, adjusting disc is sleeved on the outer wall of mounting seat, the outer wall of mounting seat is threadedly connected with the inner wall of adjusting disc, adjusting assembly is connected with adjusting disc to drive adjusting disc rotation, adjusting disc rotates to drive mounting seat to move along the axial direction of cutter head belongs to the technical field of coffee machine.

Description

Technical Field

[0001] This utility model belongs to the field of coffee machine technology, and more specifically, relates to a coffee grinding mechanism and a coffee machine. Background Technology

[0002] Fully automatic coffee machines rely on a grinding mechanism to grind coffee beans automatically, requiring only manual addition of coffee beans.

[0003] When adding coffee beans, put them into the grinding chamber. The grinder blades rotate and squeeze the coffee beans against the walls of the grinding chamber, thus grinding the coffee beans into coffee powder.

[0004] In practice, the grinding chamber needs to be cleaned after a period of time to remove the adhering residue. Due to the concave structure of the grinding chamber, cleaning is quite difficult. Utility Model Content

[0005] The main purpose of this utility model is to provide a grinding mechanism that allows both the blade and the mounting base to be detachable, making it convenient to clean the cavity and the grinding blade.

[0006] According to a first aspect of the present invention, a coffee grinding mechanism is provided, comprising a base, a collecting cylinder, a drive assembly, a mounting base, an adjustment disc, and an adjustment assembly;

[0007] The base has a cavity, in which a grinding blade and a blade disc are provided. The blade disc is arranged around the grinding blade and is coaxial with the grinding blade. The drive assembly is connected to the grinding blade to drive the grinding blade to rotate.

[0008] The blade and the grinding blade form a grinding chamber, the grinding chamber is connected to the bean outlet, and the collecting cylinder is connected to the concave cavity to collect coffee powder;

[0009] The mounting base and the adjusting assembly are disposed on the machine base. The adjusting disk is rotatably disposed on the machine base. The cutter head is detachably disposed in the mounting base. The adjusting disk is sleeved on the outer wall of the mounting base. The outer wall of the mounting base is threadedly connected to the inner wall of the adjusting disk. The adjusting assembly is connected to the adjusting disk to drive the adjusting disk to rotate. The rotation of the adjusting disk drives the mounting base to move along the axial direction of the cutter head.

[0010] In the above-mentioned grinding mechanism, the inner wall of the mounting base is provided with a limiting part, the limiting part protrudes inward and extends to the bottom, the base is provided with a notch adapted to the limiting part, the notch opens upward and extends to the top of the base, and the limiting part is located in the notch.

[0011] In the above-mentioned grinding mechanism, the adjustment component includes a rotating shaft mounted on the base, a gear fixed on the rotating shaft, and a toothed portion on the outer wall of the adjustment disc. The gear meshes with the toothed portion, and rotating the rotating shaft drives the adjustment disc to rotate.

[0012] In the above-mentioned grinding mechanism, the outer wall of the base is provided with an annular flange, the annular flange is arranged around the cavity, and the bottom of the adjustment plate is provided with a buckle, which is engaged with the annular flange.

[0013] In the aforementioned grinding mechanism, the base is provided with an elastic top post that can extend and retract vertically. The elastic top post contacts the adjustment plate so that the buckle presses against the annular flange.

[0014] In the above-mentioned grinding mechanism, the inner wall of the mounting base is evenly distributed with multiple protrusions, each protrusion having a recessed portion, and an opening is formed between two adjacent protrusions.

[0015] The top of the outer wall of the cutter head is provided with an annular retaining edge, the bottom of the annular retaining edge is provided with an L-shaped baffle, the vertical section of the L-shaped baffle is connected to the annular retaining edge, and a protruding post is provided between the horizontal section of the L-shaped baffle and the annular retaining edge.

[0016] The opening allows the L-shaped baffle to pass through, the annular flange cooperates with the horizontal section of the L-shaped baffle to clamp the protruding strip, and the protruding post is located in the recess.

[0017] The aforementioned grinding mechanism also includes a feeding hopper, a protective net, and a detection unit, with a bean outlet at the bottom of the feeding hopper;

[0018] The protective net is installed in the feeding hopper and located above the bean outlet;

[0019] The concave cavity is connected to the bean outlet;

[0020] The detection unit is installed on the feeding hopper and is used to detect whether the protective net is installed above the bean outlet;

[0021] The driving component operates according to the signal from the detection unit.

[0022] In the above-mentioned bean grinding mechanism, the protective net includes a net body and a detection column. The detection column is fixed on the net body, the net body is located above the bean outlet, and the feeding hopper is provided with a detection sleeve that cooperates with the detection column.

[0023] The detection unit is used to detect whether the detection column is inserted into the detection sleeve.

[0024] In the aforementioned grinding mechanism, the detection unit is a limit switch;

[0025] When the detection post is inserted into the detection sleeve, the detection post triggers the limit switch.

[0026] In the above-mentioned grinding mechanism, the mesh body is provided with multiple positioning sleeves, and the feeding hopper is provided with positioning posts that are adapted to the positioning sleeves. The positioning posts cooperate with the positioning sleeves to allow the mesh body to be mounted above the bean outlet.

[0027] According to a second aspect of the present invention, a coffee machine is provided, including a grinding mechanism as described in the first aspect.

[0028] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0029] In this invention, both the mounting base and the blade disc are designed as detachable structures. When cleaning is required, the mounting base and the blade disc can be removed for separate cleaning. Since the mounting base and the blade disc have been removed, the cavity will be opened to the maximum extent. In addition, the grinding blade is also a detachable mechanism, so the inner wall of the cavity can be cleaned, making the cleaning of the grinding mechanism more convenient. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0031] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0032] Figure 2 This is an exploded view of the structure of the first embodiment of this utility model;

[0033] Figure 3 This is another structural schematic diagram of the first embodiment of the present utility model;

[0034] Figure 4 This is a schematic diagram of the structure of the first embodiment of the present invention after removing the feeding hopper;

[0035] Figure 5 This is an exploded view of the structure of the first embodiment of this utility model after removing the feeding hopper;

[0036] Figure 6 This is a schematic diagram of the fit between the base and the mounting base according to the first embodiment of this utility model;

[0037] Figure 7 This is a schematic diagram of the cooperation between the cutter head and the mounting base according to the first embodiment of this utility model;

[0038] Figure 8 This is a cross-sectional view of the structure of the first embodiment of this utility model after removing the feeding hopper.

[0039] The figure labels for each figure are as follows:

[0040] 1. Base; 11. Cavity; 12. Grinding blade; 13. Blade disc; 131. Annular baffle; 132. L-shaped baffle; 133. Protruding post; 14. Cleaning disc; 15. Annular flange; 16. Notch; 17. Elastic top post; 2. Collection cylinder; 3. Drive assembly; 4. Mounting base; 41. Limiting part; 42. Protruding strip; 421. Recessed part; 5. Adjusting disc; 6. Adjusting assembly; 61. Rotating shaft; 62. Gear; 63. Toothed part; 7. Feeding hopper; 71. Bean outlet; 72. Detection sleeve; 73. Positioning post; 8. Protective net; 81. Net body; 82. Detection post; 83. Positioning sleeve; 9. Detection unit. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0042] Reference Figures 1 to 8 As shown, a coffee grinding mechanism includes a base 1, a collecting cylinder 2, a drive assembly 3, a mounting base 4, an adjustment disc 5, and an adjustment assembly 6;

[0043] The base 1 has a cavity 11, in which a grinding blade 12 and a blade disc 13 are provided. The blade disc 13 is arranged around the grinding blade 12 and is coaxial with the grinding blade 12. The drive assembly 3 is connected to the grinding blade 12 to drive the grinding blade 12 to rotate.

[0044] The burr 13 and the grinding blade 12 form a grinding chamber, which is connected to the bean outlet 71. After the coffee beans enter the grinding chamber, they are squeezed against the wall of the grinding chamber by the rotation of the grinding blade 12, thus being ground into coffee powder. The coffee powder falls to the bottom of the concave cavity 11. The collecting cylinder 2 is connected to the concave cavity 11 and is used to collect the coffee powder.

[0045] The drive assembly 3 includes a motor, a worm gear, a turbine, and a main shaft. The main shaft is rotatably mounted on the base 1 and passes through the cavity 11. The grinding blade 12 is mounted on the main shaft. The worm gear is connected to the output shaft of the motor. The turbine is fixed on the main shaft. When the motor runs, it drives the worm gear to rotate, which in turn drives the turbine to rotate. The turbine then drives the main shaft to rotate, and the grinding blade 12 can also rotate.

[0046] The collection cylinder 2 is connected to the bottom of the cavity 11 through an inclined pipe. A cleaning disc 14 is sleeved on the main shaft. The cleaning disc 14 includes multiple scraping blades arranged around the main shaft. The cleaning disc 14 rotates with the main shaft. When the cleaning disc 14 rotates, the scraping blades will gradually scrape the coffee powder on the bottom of the cavity 11 and the cavity wall of the cavity 11 into the inclined pipe.

[0047] Mounting base 4 and adjusting component 6 are mounted on machine base 1. Adjusting disk 5 is rotatably mounted on machine base 1. Cutter head 13 is detachably mounted in mounting base 4. Adjusting disk 5 is sleeved on the outer wall of mounting base 4. The outer wall of mounting base 4 is threadedly connected to the inner wall of adjusting disk 5. Adjusting component 6 is connected to adjusting disk 5 to drive adjusting disk 5 to rotate. The rotation of adjusting disk 5 drives mounting base 4 to move along the axial direction of cutter head 13.

[0048] Specifically, the outer wall of the base 1 is provided with an annular flange 15, which surrounds the cavity 11. The bottom of the adjustment disc 5 is provided with a buckle, which is connected to the annular flange 15, allowing the adjustment disc 5 to rotate but not move up and down. The inner wall of the mounting base 4 is provided with a limiting part 41, which protrudes inward and extends to the bottom. The base 1 is provided with a notch 16 that matches the limiting part 41. The notch 16 opens upward and extends to the top of the base 1. The limiting part 41 is located in the notch 16. Therefore, under the restriction of the notch 16, the mounting base 4 cannot rotate and can only move up and down along the notch 16. The mounting base 4 is threaded to the adjustment disc 5. When the adjustment disc 5 rotates, the mounting base 4 will adjust its position up and down under the action of the thread, thereby adjusting the height of the burr 13. The height of the burr 13 affects the clearance between it and the grinding blade 12, thus affecting the coarseness of the ground coffee powder.

[0049] The grinding blade 12 is pressed onto the cleaning disc 14 by a nut, so the grinding blade 12 is also a detachable structure. In addition, the mounting base 4 and the blade disc 13 are also designed to be detachable. When cleaning is required, the mounting base 4, the blade disc 13 and the grinding blade 12 can be removed for cleaning. Since the mounting base 4, the blade disc 13 and the grinding blade 12 have been removed, the cavity 11 will also be opened to the maximum extent, at which time the inner wall of the cavity 11 can be cleaned, thus making the cleaning of the grinding mechanism more convenient.

[0050] In this embodiment, the mounting base 4 is connected to the adjusting plate 5 by threads. Simply rotate the adjusting plate 5 to move the mounting base 4 upward until the limiting part 41 disengages from the notch 16. At this point, the mounting base 4 has been removed.

[0051] The inner wall of the mounting base 4 is evenly distributed with multiple protrusions 42, each protrusion 42 having a recess 421. Openings are formed between the protrusions. The top of the outer wall of the cutter head 13 is provided with an annular flange 131, and the bottom of the annular flange 131 is provided with an L-shaped baffle 132. The L-shaped baffle 132 corresponds to the opening and can pass through the opening. The vertical section of the L-shaped baffle 132 is connected to the annular flange 131, and the horizontal section of the L-shaped baffle 132 is connected to the annular flange 131 by a protruding post 133. In use, the L-shaped baffle 132 is connected to the protrusions 42 by the protrusions 42. The blade 13 enters through the opening between the two parts, and the annular baffle 131 falls on the protrusion 42. Then, the blade 13 is rotated so that the protrusion 133 is locked onto the recess 421. At this time, the horizontal section of the L-shaped baffle 132 is located below the protrusion 42. The annular baffle 131 and the L-shaped baffle 132 cooperate to lock onto the protrusion 42, preventing the blade 13 from moving up and down. At the same time, attention should be paid to the rotation direction of the blade 13 during assembly. It should be matched with the rotation direction of the grinding blade 12 to prevent the blade 13 from being rotated open when the grinding blade 12 rotates. The blade 13 can be detached through this rotation and locking method.

[0052] In some other embodiments, the cutter head 13 can be connected to the mounting base 4 by means of a snap-fit ​​or by means of bolts.

[0053] In this embodiment, the base 1 is provided with an elastic top post 17 that can extend and retract vertically. The elastic top post 17 contacts the adjustment plate 5 so that the buckle presses on the annular flange 15 to prevent the adjustment plate 5 from floating up and down.

[0054] Specifically, the base 1 is provided with an auxiliary sleeve, and the elastic top post 17 is located in the auxiliary sleeve. The elastic top post 17 is connected to the bottom of the auxiliary sleeve by a spring. Under the action of the spring, the elastic top post 17 can extend and retract up and down.

[0055] In this embodiment, the adjustment component 6 includes a rotating shaft 61 mounted on the base 1, a gear 62 fixed on the rotating shaft 61, and a toothed portion 63 on the outer wall of the adjustment disk 5. The toothed portion 63 includes multiple teeth and is integrally formed with the adjustment disk 5. The gear 62 meshes with the toothed portion 63. Rotating the rotating shaft 61 drives the gear 62 to rotate. Since the gear 62 meshes with the toothed portion 63, the adjustment disk 5 can rotate.

[0056] In this embodiment, it also includes a feeding hopper 7, a protective net 8, and a detection unit 9. Coffee beans are added through the feeding hopper 7. The bottom of the feeding hopper 7 is provided with a bean outlet 71. The coffee beans fed into the feeding hopper 7 are output from the bean outlet 71.

[0057] The concave cavity 11 is connected to the bean outlet 71 and can receive coffee beans from the feeding hopper 7;

[0058] The protective net 8 is installed in the feeding hopper 7 and located above the bean outlet 71. The protective net 8 can prevent human hands from entering the grinding chamber through the bean outlet 71.

[0059] The detection unit 9 is installed on the feeding hopper 7 and is used to detect whether the protective net 8 is installed above the bean outlet 71;

[0060] Drive component 3 operates according to the signal from detection unit 9;

[0061] In practice, when the protective net 8 is installed and located above the bean outlet 71, the detection unit 9 detects the presence of the protective net 8, and the drive component 3 can be started to grind beans. The protective net 8 can prevent human hands from entering.

[0062] When the protective net 8 is not installed, the detection unit 9 detects that the protective net 8 is not present and determines that a person's hand may enter the grinding chamber. At this time, the drive component 3 cannot be started.

[0063] This method achieves a safety interlock, protecting the safety of the grinding mechanism and maintenance personnel.

[0064] In this embodiment, the protective net 8 includes a net body 81 and a detection post 82. The detection post 82 is fixed on the net body 81. The net body 81 is located above the bean outlet 71. The net body 81 can ensure that coffee beans can pass through while blocking human hands from entering. At the same time, it can disperse coffee beans and prevent them from clogging the bean outlet 71.

[0065] The mesh body 81 is provided with multiple positioning sleeves 83, and the feeding hopper 7 is provided with positioning posts 73 that are adapted to the positioning sleeves 83. The positioning posts 73 cooperate with the positioning sleeves 83 to allow the mesh body 81 to be set above the bean outlet 71. The feeding hopper 7 is provided with a detection sleeve 72 that cooperates with the detection post 82. When the mesh body 81 is set above the bean outlet 71, the detection post 82 will be inserted into the detection sleeve 72.

[0066] The detection unit 9 is used to detect whether the detection column 82 is inserted into the detection sleeve 72, thereby determining whether the protective net 8 is installed.

[0067] In this embodiment, the detection unit 9 is a limit switch, which is fixed on the back of the feeding hopper 7;

[0068] When the detection post 82 is inserted into the detection sleeve 72, the detection post 82 will trigger the limit switch, thereby determining that the protective net 8 is installed in place;

[0069] When the detection column 82 is not inserted into the detection sleeve 72, the limit switch cannot be triggered. At this time, it is determined that the protective net 8 is not installed, and the drive component 3 cannot be started.

[0070] In some other embodiments, the detection unit 9 can be a photoelectric sensor, which can also determine whether the detection post 82 is inserted into the detection sleeve 72.

[0071] In some other embodiments, the detection column 82 may not be provided. The detection unit 9 is a photoelectric sensor that directly detects the position of the net body 81 and determines whether the protective net 8 is installed.

[0072] In this embodiment, the rotating shaft 61 of the adjusting component 6 is inserted into the feeding hopper 7. The top of the rotating shaft 61 is provided with a handle 64, which is higher than the mesh body 81. The rotating shaft 61 can be rotated through the handle 64.

[0073] In practical applications, the grinding mechanism is used in coffee machines to supply coffee powder to the brewing device.

[0074] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A coffee grinding mechanism, characterized in that, It includes a base (1), a collection cylinder (2), a drive assembly (3), a mounting base (4), an adjustment disc (5), and an adjustment component (6); The base (1) is provided with a cavity (11), and a grinding blade (12) and a blade disc (13) are provided in the cavity (11). The blade disc (13) is arranged around the grinding blade (12) and is coaxial with the grinding blade (12). The drive assembly (3) is connected to the grinding blade (12) to drive the grinding blade (12) to rotate. The grinding chamber is formed between the blade (13) and the grinding blade (12), and the collecting cylinder (2) is connected to the concave cavity (11) to receive coffee powder; The mounting base (4) and the adjusting assembly (6) are disposed on the machine base (1). The adjusting disc (5) is rotatably disposed on the machine base (1). The cutter head (13) is detachably disposed in the mounting base (4). The adjusting disc (5) is sleeved on the outer wall of the mounting base (4). The outer wall of the mounting base (4) is threadedly connected to the inner wall of the adjusting disc (5). The adjusting assembly (6) is connected to the adjusting disc (5) to drive the adjusting disc (5) to rotate. The rotation of the adjusting disc (5) drives the mounting base (4) to move along the axial direction of the cutter head (13).

2. The grinding mechanism according to claim 1, characterized in that, The inner wall of the mounting base (4) is provided with a limiting part (41), the limiting part (41) protrudes inward and extends to the bottom, the base (1) is provided with a notch (16) adapted to the limiting part (41), the notch (16) opens upward and extends to the top of the base (1), and the limiting part (41) is located in the notch (16).

3. The grinding mechanism according to claim 1, characterized in that, The adjustment assembly (6) includes a rotating shaft (61) disposed on the base (1), a gear (62) fixed on the rotating shaft (61), and the outer wall of the adjustment disk (5) has a toothed portion (63). The gear (62) meshes with the toothed portion (63), and rotating the rotating shaft (61) drives the adjustment disk (5) to rotate.

4. The grinding mechanism according to claim 1, characterized in that, The outer wall of the base (1) is provided with an annular flange (15), which is arranged around the cavity (11). The bottom of the adjustment plate (5) is provided with a buckle, which is engaged with the annular flange (15).

5. The grinding mechanism according to claim 4, characterized in that, The base (1) is provided with an elastic top post (17) that can extend and retract vertically. The elastic top post (17) contacts the adjusting plate (5) so that the buckle presses on the annular flange (15).

6. The grinding mechanism according to claim 4, characterized in that, The inner wall of the mounting base (4) is evenly distributed with a plurality of protrusions (42), and the protrusions (42) are provided with recesses (421), and an opening is formed between two adjacent protrusions (42). The top of the outer wall of the cutter head (13) is provided with an annular retaining edge (131), the bottom of the annular retaining edge (131) is provided with an L-shaped baffle (132), the vertical section of the L-shaped baffle (132) is connected to the annular retaining edge (131), and a protruding post (133) is provided between the horizontal section of the L-shaped baffle (132) and the annular retaining edge (131). The opening allows the L-shaped baffle (132) to pass through, the annular baffle (131) cooperates with the horizontal section of the L-shaped baffle (132) to clamp the protruding strip (42), and the protruding post (133) is located in the recess (421).

7. The grinding mechanism according to claim 1, characterized in that, It also includes a feeding hopper (7), a protective net (8) and a detection unit (9), wherein the bottom of the feeding hopper (7) is provided with a bean outlet (71); The protective net (8) is installed in the feeding hopper (7) and located above the bean outlet (71); The concave cavity (11) is connected to the bean outlet (71); The detection unit (9) is installed on the feeding hopper (7) and is used to detect whether the protective net (8) is installed above the bean outlet (71); The driving component (3) operates according to the signal from the detection unit (9).

8. The grinding mechanism according to claim 7, characterized in that, The protective net (8) includes a net body (81) and a detection column (82). The detection column (82) is fixed on the net body (81). The net body (81) is located above the bean outlet (71). The feeding hopper (7) is provided with a detection sleeve (72) that cooperates with the detection column (82). The detection unit (9) is used to detect whether the detection column (82) is inserted into the detection sleeve (72).

9. The grinding mechanism according to claim 8, characterized in that, The mesh body (81) is provided with a plurality of positioning sleeves (83), and the feeding hopper (7) is provided with positioning posts (73) that are adapted to the positioning sleeves (83). The positioning posts (73) cooperate with the positioning sleeves (83) to allow the mesh body (81) to be erected above the bean outlet (71).

10. A coffee machine, characterized in that, Includes the grinding mechanism as described in any one of claims 1-9.

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