A bean grinding and pulverizing device

Abstract

This utility model discloses a bean grinding and pressing device, characterized in that it includes a base (1) and a powder cup (2), a grinding mechanism (3), a powder dispensing mechanism (4), and a pressing mechanism (5) mounted on the base (1); the powder dispensing mechanism (4) includes a powder dispensing pipe (41) and a translation device (42) for driving the powder dispensing pipe (41) to move between a standby position and a powder dispensing position; the pressing mechanism (5) includes a pressing head (51) and a lifting device (52) for driving the pressing head (51) to rise and fall between a standby position and a pressing position; in the powder dispensing state, the powder dispensing pipe (41) is in the powder dispensing position, and the pressing head (51) is in the standby position; in the pressing state, the powder dispensing pipe (41) is in the standby position, and the pressing head (51) is in the pressing position. Compared with the prior art, the bean grinding and pressing device of this utility model can realize automatic bean grinding and pressing functions.

Description

Technical Field

[0001] This utility model relates to the field of powder pressing equipment technology, specifically to a bean grinding and pressing device. Background Technology

[0002] In the process of making coffee, coffee beans are generally ground into powder using a coffee grinder. For details, please refer to Chinese patent application number CN202410599958.0, "A coffee grinder and its grinding system".

[0003] However, coffee grinders only have a grinding function and do not have a tamping function. After grinding, the coffee grounds need to be manually tamped to form a disc shape and placed in the filter basket. Common methods of tamping the coffee grounds are by hand or by using a tamping tool. This operation is relatively complicated and requires a high level of skill from the operator. If the operator is not skilled enough, the coffee grounds may not be evenly distributed or are loose in the filter basket. This can lead to uneven extraction and uneven pressure distribution during brewing, resulting in incomplete extraction and poor coffee quality. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a grinding and pressing device that can realize automatic grinding and pressing functions, based on the current state of the existing technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a bean grinding and pressing device, characterized in that: it includes a machine base and a powder cup, a bean grinding mechanism, a powder dispensing mechanism and a powder pressing mechanism installed on the machine base;

[0006] The powder cup has an opening on its top side;

[0007] The grinding mechanism has a powder outlet;

[0008] The powder dispensing mechanism includes a powder dispensing tube and a translation device for driving the powder dispensing tube to move between a standby position and a powder dispensing position;

[0009] The powder pressing mechanism includes a powder pressing head and a lifting device for driving the powder pressing head to move up and down between a standby position and a powder pressing position;

[0010] When the powder outlet tube is in the standby position, the projection of the powder outlet tube onto the horizontal plane does not overlap with that of the powder pressing head. When the powder outlet tube is in the powder dispensing position, the inlet of the powder outlet tube is connected to the powder outlet, and the outlet of the powder outlet tube is connected to the top opening of the powder cup.

[0011] When the tamping head is in the standby position, there is a clearance space between the tamping head and the coffee cup for the coffee dispensing tube to move. When the tamping head is in the tamping position, the tamping head extends into the coffee cup and presses against the top of the coffee powder.

[0012] When dispensing powder, the powder dispensing tube is in the powder dispensing position, and the powder pressing head is in the standby position.

[0013] When the powder is pressed, the powder outlet tube is in the standby position and the powder pressing head is in the powder pressing position.

[0014] To facilitate the placement of the powder cup, the machine base has a support platform for placing the powder cup.

[0015] To facilitate the handling of the powder cup, the outer periphery of the powder cup has at least two limiting blocks arranged circumferentially at intervals;

[0016] The support platform includes:

[0017] The outer cylinder has an internal cavity for accommodating the powder cup; and

[0018] At least two support blocks are arranged circumferentially on the inner wall of the outer cylinder, each support block corresponding to a limiting block, and a notch is formed between two adjacent support blocks to allow the limiting block to pass through.

[0019] To process coffee beans into coffee powder, the grinding mechanism includes:

[0020] A coffee grinding device for grinding coffee beans into coffee powder, having a bean inlet and a powder outlet; and

[0021] The bean hopper is installed at the bean inlet.

[0022] To reduce the space occupied, the powder outlet tube is at least partially close to the powder cup from top to bottom.

[0023] To drive the air inlet pipe to translate between the standby position and the powder outlet position, the translation device includes:

[0024] A horizontally arranged rack is fixed relative to the powder outlet pipe;

[0025] The first gear meshes with the rack; and

[0026] The first driving component is used to drive the first gear to rotate.

[0027] To drive the powder pressing head to move up and down between the standby position and the powder pressing position, the lifting device includes:

[0028] The lead screw is slidably mounted on the machine base.

[0029] The second gear is rotatably connected to the machine base and threadedly connected to the outer circumference of the lead screw;

[0030] The third gear meshes with the second gear; and

[0031] The second driving component is used to drive the third gear to rotate;

[0032] The powder pressing head is rotatably mounted on the bottom of the lead screw and circumferentially limited on the second gear, so that it can rotate synchronously with the second gear while moving up and down with the lead screw.

[0033] In order to achieve stable lifting and lowering of the powder pressing head, the peripheral wall of the lead screw has a guide groove extending in the vertical direction, and the base has a guide block that guides and cooperates with the guide groove.

[0034] To improve guiding stability, there are at least two guide grooves, which are arranged at intervals along the circumference of the lead screw, and the guide blocks correspond one-to-one with the guide grooves.

[0035] To make it easier for users to pick up and put down the powder cup, the side of the powder cup has a handle for users to hold.

[0036] Compared with the prior art, the advantages of this utility model are as follows: the powder outlet tube is driven to move between the standby position and the powder outlet position by the translation device, and the powder pressing head is driven to rise and fall between the standby position and the powder pressing position by the lifting device. In the powder outlet state, the powder outlet tube is in the powder outlet position and the powder pressing head is in the standby position. In the powder pressing state, the powder outlet tube is in the standby position and the powder pressing head is in the powder pressing position. The functions of grinding and pressing beans can be automatically realized in sequence without interference, eliminating the need for manual pressing. The structure is compact and occupies little space. Attached Figure Description

[0037] Figure 1 This is a three-dimensional structural diagram of an embodiment of the bean grinding and pressing device of this utility model in the powder dispensing state;

[0038] Figure 2 for Figure 1 Longitudinal sectional view (section lines of some base and grinding mechanism are not shown);

[0039] Figure 3 for Figure 1 A longitudinal sectional view of the medium-sized coffee grinder after it has switched to the tamping mode (section lines of some machine bases and grinding mechanisms are not shown);

[0040] Figure 4 for Figure 1A three-dimensional structural diagram of the central support platform and the powder cup;

[0041] Figure 5 for Figure 1 A three-dimensional structural diagram of the powder dispensing mechanism;

[0042] Figure 6 for Figure 1 A three-dimensional structural diagram of the lifting device. Detailed Implementation

[0043] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0044] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0045] like Figures 1 to 6 The image shows a preferred embodiment of the bean grinding and pressing device of this utility model. The bean grinding and pressing device includes a base 1 and a powder cup 2, a grinding mechanism 3, a powder dispensing mechanism 4, and a pressing mechanism 5 mounted on the base 1.

[0046] The lower part of the base 1 has a support platform 11 for placing the powder cup 2. In this embodiment, the support platform 11 includes an outer cylinder 111 and three support blocks 112 arranged circumferentially on the inner wall of the outer cylinder 111. The inner part of the outer cylinder 111 has a receiving cavity 1111 for accommodating the powder cup 2. The upper part of the base 1 has two guide blocks 12 arranged on the left and right.

[0047] The top side of the powder cup 2 has an opening. Specifically, the outer periphery of the powder cup 2 has three circumferentially spaced limiting blocks 21, and each of the aforementioned support blocks 112 corresponds to the limiting block 21 and is used to place the corresponding limiting block 21. A notch 1121 is formed between two adjacent support blocks 112 to allow the limiting block 21 to pass through. The side of the powder cup 2 has a handle 22 for the user to hold.

[0048] The coffee grinding mechanism 3 includes a coffee grinding device 31 and a coffee hopper 32. Specifically, the coffee grinding device 31 is used to grind coffee beans into coffee powder, and has a bean inlet 311 and a powder outlet 312 at its top and bottom, respectively; the coffee hopper 32 is installed at the bean inlet 311.

[0049] The powder dispensing mechanism 4 includes a powder dispensing pipe 41 and a translation device 42. Specifically, the powder dispensing pipe 41 gradually approaches the powder cup 2 from top to bottom; the translation device 42 is used to drive the powder dispensing pipe 41 to translate between the standby position and the powder dispensing position.

[0050] In this embodiment, the translation device 42 includes a rack 421, a first gear 422, and a first driving member 423. Specifically, the rack 421 is horizontally arranged, slidably mounted on the base 1, and connected to the rear side of the powder outlet pipe 41; the first gear 422 is rotatably connected to the base 1 and meshes with the rack 421; the first driving member 423 is a motor, mounted on the base 1, and its power output end is coaxially connected to the first gear 422 to drive the first gear 422 to rotate.

[0051] The powder pressing mechanism 5 includes a powder pressing head 51 and a lifting device 52. Specifically, the powder pressing head 51 is positioned directly opposite the top opening of the powder cup 2; the lifting device 52 is used to drive the powder pressing head 51 to move up and down and rotate between the standby position and the powder pressing position.

[0052] In this embodiment, the lifting device 52 includes a lead screw 521, a second gear 522, a third gear 523, and a second drive member 524. Specifically, the lead screw 521 has guide grooves 5211 extending vertically on both sides of its peripheral walls. The guide blocks 12 correspond one-to-one with the guide grooves 5211 and are inserted into the corresponding guide grooves 5211 for guidance and cooperation, so that the lead screw 521 can be slidably mounted on the machine base 1. The second gear 522 is rotatably connected to the machine base 1 and threaded to the outer periphery of the lead screw 521. The third gear 523 is rotatably connected to the machine base 1 and meshes with the second gear 522. The second drive member 524 is a motor, mounted on the machine base 1, and its power output end is coaxially connected to the third gear 523 to drive the third gear 523 to rotate. The powder pressing head 51 is rotatably mounted on the bottom of the lead screw 521 and circumferentially limited on the second gear 522, so that it can rotate synchronously with the second gear 522 while moving up and down with the lead screw 521.

[0053] When the powder outlet tube 41 is in the powder outlet position, the inlet of the powder outlet tube 41 is directly opposite the powder outlet 312, and the outlet of the powder outlet tube 41 is located directly above the opening on the top side of the powder cup 2; when the powder outlet tube 41 is in the standby position, the projection of the powder outlet tube 41 and the powder pressing head 51 on the horizontal plane does not overlap.

[0054] When the tamping head 51 is in the tamping position, the tamping head 51 extends into the coffee cup 2 and presses firmly on the top of the coffee powder; when the tamping head 51 is in the standby position, a clearance space is formed between the tamping head 51 and the coffee cup 2 to allow the coffee supply tube 41 to move.

[0055] In the powder dispensing state, such as Figure 2As shown, the powder outlet pipe 41 is in the powder outlet position, and the powder pressing head 51 is in the standby position.

[0056] In the pressed powder state, such as Figure 3 As shown, the powder outlet tube 41 is in the standby position, and the powder pressing head 51 is in the powder pressing position.

[0057] The working principle of this embodiment is as follows:

[0058] (1) Before working, in the initial state, the powder outlet pipe 41 and the powder pressing head 51 are both in the standby position. The user first inserts the limiting block 21 of the powder cup 2 into the receiving cavity 1111 with the notch 1121 facing it, and then rotates the powder cup 2 to place the limiting block 21 on the corresponding support block 112, thereby realizing the placement of the powder cup 2.

[0059] (2) During work:

[0060] The first driving component 423 is activated, driving the first gear 422 to rotate forward, thereby causing the powder outlet pipe 41 to move synchronously to the left to the powder outlet position via the rack 421. At this time, if Figure 2 As shown, the inlet of the powder outlet tube 41 is directly opposite the powder outlet 312, and the outlet of the powder outlet tube 41 is located directly above the opening on the top side of the powder cup 2. When the grinding and tamping device is switched to the powder dispensing state, the grinding device 31 is started to grind the coffee beans in the bean hopper 32 into coffee powder. After the coffee powder is discharged from the powder outlet 312, it is sent into the powder cup 2 through the powder outlet tube 3141 (the weight of the coffee powder is controlled by time, and the dispensing ends when the required amount is reached).

[0061] After the powder is dispensed, the first drive unit 423 is activated to drive the first gear 422 to reverse, thereby driving the powder dispensing tube 41 to move to the right and return to the standby position through the rack 421. At this time, the powder dispensing tube 41 and the powder pressing head 51 do not overlap on the horizontal plane, thus making way for subsequent operations.

[0062] The second drive unit 524 drives the third gear 523 to rotate forward, thereby driving the second gear 522 to rotate. This, in turn, drives the tamping head 51 to move downwards synchronously via the lead screw 521 (since the tamping head 51 is circumferentially limited by the second gear 522, it will also rotate synchronously with the second gear 522 during its downward movement), until the tamping head 51 extends into the coffee cup 2 and presses firmly against the top of the coffee powder. During this process, the coffee powder is pressed into a cake shape by the tamping head 51. At this point, if... Figure 2 As shown, the tamping head 51 is in the tamping position, and the bean grinding and tamping device is switched to the tamping state;

[0063] After the powder pressing is completed, the second drive unit 524 is activated to drive the third gear 523 to reverse, thereby driving the second gear 522 to rotate, which in turn drives the powder pressing head 51 to move upward synchronously through the lead screw 521. During this process, the powder pressing head 51 gradually detaches from the powder compact and returns to the standby position.

[0064] (3) After the work is completed, rotate the powder cup 2 to align the limit block 21 with the notch 1121 and take it out downwards.

Claims

1. A bean grinding and powdering device, characterized by: It includes a base (1) and a powder cup (2), a grinding mechanism (3), a powder dispensing mechanism (4) and a powder pressing mechanism (5) mounted on the base (1); The powder cup (2) has an opening on its top side; The grinding mechanism (3) has a powder outlet (312); The powder dispensing mechanism (4) includes a powder dispensing pipe (41) and a translation device (42) for driving the powder dispensing pipe (41) to move between a standby position and a powder dispensing position; The powder pressing mechanism (5) includes a powder pressing head (51) and a lifting device (52) for driving the powder pressing head (51) to move up and down between the standby position and the powder pressing position; When the powder outlet tube (41) is in the standby position, the projection of the powder outlet tube (41) and the powder pressing head (51) on the horizontal plane do not overlap. When the powder outlet tube (41) is in the powder outlet position, the inlet of the powder outlet tube (41) is connected to the powder outlet (312), and the outlet of the powder outlet tube (41) is connected to the top opening of the powder cup (2). When the tamping head (51) is in the standby position, a clearance space is formed between the tamping head (51) and the powder cup (2) for the powder dispensing tube (41) to move. When the tamping head (51) is in the tamping position, the tamping head (51) extends into the powder cup (2) and presses against the top of the coffee powder. In the powder dispensing state, the powder dispensing pipe (41) is in the powder dispensing position, and the powder pressing head (51) is in the standby position; In the powder pressing state, the powder outlet pipe (41) is in the standby position and the powder pressing head (51) is in the powder pressing position.

2. The bean grinding and powdering device according to claim 1, characterized in that: The base (1) has a support platform (11) for placing the powder cup (2).

3. The bean grinding and powdering device according to claim 2, characterized in that: The outer periphery of the powder cup (2) has at least two limiting blocks (21) arranged circumferentially; The support platform (11) includes: The outer cylinder (111) has an internal cavity (1111) for accommodating the powder cup (2); and At least two support blocks (112) are arranged circumferentially on the inner wall of the outer cylinder (111). Each support block (112) corresponds to the limiting block (21) and is used to support the corresponding limiting block (21). A notch (1121) is formed between two adjacent support blocks (112) to allow the limiting block (21) to pass through.

4. The bean grinding and powdering device according to claim 1, characterized in that: The coffee grinding mechanism (3) includes a coffee grinding device (31) for grinding coffee beans into coffee powder, having a bean inlet (311) and a powder outlet (312); and The bean hopper (32) is installed at the bean inlet (311).

5. The bean grinding and powdering device according to claim 1, characterized in that: The powder outlet tube (41) is at least partially close to the powder cup (2) from top to bottom.

6. The bean grinding and powdering device according to claim 1, characterized in that: The translation device (42) includes a horizontally arranged rack (421) fixed relative to the powder outlet pipe (41); The first gear (422) meshes with the rack (421); as well as The first driving member (423) is used to drive the first gear (422) to rotate.

7. The bean grinding and powdering device according to claim 1, characterized in that: The lifting device (52) includes a lead screw (521) which is slidably mounted on the base (1); The second gear (522) is rotatably connected to the base (1) and threadedly connected to the outer circumference of the lead screw (521); The third gear (523) meshes with the second gear (522); as well as The second driving member (524) is used to drive the third gear (523) to rotate; The powder pressing head (51) is rotatably mounted on the bottom of the lead screw (521) and circumferentially limited on the second gear (522) so that it can rotate synchronously with the second gear (522) while moving up and down with the lead screw (521).

8. The bean grinding and pulverizing device according to claim 7, characterized in that: The lead screw (521) has a guide groove (5211) extending vertically on its peripheral wall, and the base (1) has a guide block (12) that guides and cooperates with the guide groove (5211).

9. The bean grinding and pulverizing device according to claim 8, characterized in that: The number of guide grooves (5211) is at least two, and they are arranged at intervals along the circumference of the lead screw (521). The guide block (12) corresponds one-to-one with the guide groove (5211).

10. The bean grinding and pulverizing device according to any one of claims 1 to 9, characterized in that: The powder cup (2) has a handle (22) on its side for the user to hold.

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