Coffee machine with automatic powder pressing mechanism

Abstract

The utility model discloses a coffee machine with an automatic powder pressing mechanism, which comprises a machine body provided with a bean inlet and a brewing port, the bottom end of the bean inlet is communicated with a grinding mechanism, and the bottom of the grinding mechanism is provided with a powder outlet; the powder pressing mechanism and the powder pressing chamber are communicated with the powder outlet, the powder pressing chamber is arranged in the machine body, the first motor is arranged on one side of the powder pressing chamber, the two threaded rods are rotationally connected to the two sides of the interior of the powder pressing chamber respectively, the first motor drives the threaded rods to rotate through a gear set, and the threaded blocks are in threaded connection with the threaded rods; and the water supply pipeline is communicated with the powder pressing plate. After automatic grinding and filling of coffee powder are completed, a first motor drives a double-threaded rod to rotate, a threaded block is driven to move downwards, a powder pressing plate at the bottom of the threaded block applies pressure to the coffee powder, the pressure can be set through an electronic program, and the automatic powder pressing function is achieved; and the space of the machine body can be compressed to be more compact.

Description

Technical Field

[0001] The utility model relates to the field of coffee machines, in particular to a coffee machine with an automatic powder pressing mechanism. Background Art

[0002] Semi-automatic coffee machines on the market currently generally require manual tamping during the coffee brewing process, that is, add a certain amount of coffee powder into the liquid outlet funnel, and then hold the tamping hammer to compact the coffee powder. During the operation, a certain amount of pressure needs to be applied by the wrist, and the coffee powder is easy to overflow, which is inconvenient to operate. Although fully automatic coffee machines have automatic tamping mechanisms, most of them are too complicated or bulky, and the spiral tamping mechanism has a long stroke, requiring twice the length of the action stroke to complete the tamping work. Utility Model Content

[0003] The utility model aims to provide a coffee machine with an automatic powder pressing mechanism to solve the above problems.

[0004] According to one aspect of the utility model, a coffee machine with an automatic powder pressing mechanism is provided, comprising: a machine body, a bean inlet is arranged on the top, a brewing port is arranged on one side of the middle part of the machine body, the brewing port is detachably connected with a liquid outlet funnel, the liquid outlet funnel is provided with a powder bowl, the bottom end of the bean inlet is connected with a grinding mechanism, and the bottom of the grinding mechanism is provided with a powder outlet; the powder pressing mechanism comprises a powder pressing chamber, a first motor, a gear set, two threaded rods, a threaded block and a powder pressing plate, the powder pressing chamber is connected with the powder outlet, the powder pressing chamber is arranged inside the machine body, the first motor is arranged on one side of the powder pressing chamber, the two threaded rods are rotatably connected to the two sides inside the powder pressing chamber respectively, the first motor drives the threaded rod to rotate through the gear set, the threaded block is threadedly connected with the threaded rod, the powder pressing plate is arranged at the bottom of the threaded block, and the brewing port is arranged at the bottom of the powder pressing chamber; a water supply pipeline is connected with the powder pressing plate.

[0005] In some embodiments, a guide block is disposed on one side of the threaded block, and a guide groove for movement of the guide block is opened on one side of the powder pressing chamber.

[0006] In some embodiments, the threaded rod and the threaded block are respectively provided with matching trapezoidal threads.

[0007] In some embodiments, the powder pressing plate is provided with a water outlet network, and the water outlet network is connected to the water supply pipeline.

[0008] In some embodiments, the grinding mechanism includes a second motor, a grinding chamber, an outer grinding wheel and an inner grinding wheel, the grinding chamber is arranged inside the machine body, the inner grinding wheel is rotatably arranged in the grinding chamber, the inner grinding wheel is rotatably connected to the output end of the second motor, the outer grinding wheel is arranged at the upper part of the grinding chamber, the bean inlet is arranged at the top of the grinding chamber, and the powder outlet is arranged at the bottom of the grinding chamber.

[0009] In some embodiments, a powder pushing plate is rotatably provided at the bottom of the inner grinding wheel, and the powder pushing plate is used to push the ground coffee powder into the powder outlet.

[0010] In some embodiments, shaft sleeves are fixedly disposed in the powder pressing chamber and the gear set, respectively, and the threaded rod is rotatably connected between the upper and lower shaft sleeves on the same side.

[0011] In some embodiments, a plurality of card slots are disposed on the inner side of the dispensing port, and a plurality of card blocks matching the card slots are disposed on the outer side of the top of the liquid outlet funnel.

[0012] Compared with the prior art, the beneficial effects of this application are:

[0013] After the automatic grinding and loading of coffee powder is completed, the double-threaded rod is driven to rotate by the first motor, driving the threaded block to move downward, and the powder pressing plate at the bottom of the threaded block applies pressure to the coffee powder. The pressure can be set through an electronic program to achieve the automatic powder pressing function. The double-threaded rod is driven by a gear set, and the threaded rod only rotates but does not move up and down, so the space of the machine body can be compressed more compactly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the bottom structure of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the liquid discharge funnel of the utility model;

[0017] Figure 4 It is a schematic diagram of the internal structure of the grinding mechanism of the utility model;

[0018] Figure 5 It is a schematic diagram of the connection structure between the grinding mechanism and the powder pressing mechanism of the utility model;

[0019] Figure 6 It is a three-dimensional structural schematic diagram of the powder pressing mechanism of the utility model;

[0020] Figure 7 It is a schematic diagram of the internal structure of the powder pressing mechanism of the utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] refer to Figures 1 to 7 The present application provides a coffee machine with an automatic powder pressing mechanism, comprising: a machine body 1, a bean inlet 2 is arranged on the top, a brewing port 3 is arranged on one side of the middle of the machine body 1, the brewing port 3 is detachably connected to a liquid outlet funnel 4, the liquid outlet funnel 4 is provided with a powder bowl 5, the bottom end of the bean inlet 2 is connected to a grinding mechanism 6, and the bottom of the grinding mechanism 6 is provided with a powder outlet 7; the powder pressing mechanism includes a powder pressing chamber 8, a first motor 9, a gear set 10, two threaded rods 11, a threaded block 12 and a powder pressing mechanism. Plate 13, the powder pressing chamber 8 is connected with the powder outlet 7, the powder pressing chamber 8 is arranged inside the machine body 1, the first motor 9 is arranged on one side of the powder pressing chamber 8, two threaded rods 11 are rotatably connected to the two sides inside the powder pressing chamber 8 respectively, the first motor 9 drives the threaded rod 11 to rotate through the gear set 10, the threaded block 12 is threadedly connected with the threaded rod 11, the powder pressing plate 13 is arranged at the bottom of the threaded block 12, and the brewing port 3 is arranged at the bottom of the powder pressing chamber 8; the water supply pipe 14 is connected with the powder pressing plate 13.

[0023] In some embodiments, a guide block 15 is disposed on one side of the threaded block 12 , and a guide groove 16 for the guide block 15 to move is provided on one side of the powder pressing chamber 8 , so as to ensure that the threaded block 12 will not deviate during the lifting and lowering process.

[0024] In some embodiments, matching trapezoidal threads are respectively provided on the threaded rod 11 and the threaded block 12, and the matching trapezoidal threads can be self-locking. After the powder is compacted, the powder pressing plate 13 can resist high pressure reverse thrust without the need for the first motor 9 to output power.

[0025] In some embodiments, the powder pressing plate 13 is provided with a water outlet network, and the water outlet network is connected to the water supply pipe 14 .

[0026] In some embodiments, the grinding mechanism 6 includes a second motor 17, a grinding chamber 18, an outer grinding wheel 19 and an inner grinding wheel 20. The grinding chamber 18 is arranged inside the machine body 1, and the inner grinding wheel 20 is rotatably arranged in the grinding chamber 18. The inner grinding wheel 20 is rotatably connected to the output end of the second motor 17, the outer grinding wheel 19 is arranged at the upper part of the grinding chamber 18, the bean inlet 2 is arranged at the top of the grinding chamber 18, and the powder outlet 7 is arranged at the bottom of the grinding chamber 18.

[0027] In some embodiments, a powder pushing plate 21 is rotatably disposed at the bottom of the inner grinding wheel 20 , and the powder pushing plate 21 is used to push the ground coffee powder into the powder outlet 7 .

[0028] In some embodiments, shaft sleeves 22 are fixedly disposed in the powder pressing chamber 8 and the gear set 10 , respectively, and the threaded rod 11 is rotatably connected between the upper and lower shaft sleeves 22 on the same side.

[0029] In some embodiments, a plurality of card slots 23 are disposed on the inner side of the dispensing port 3 , and a plurality of card blocks 24 matching the card slots 23 are disposed on the outer side of the top of the liquid outlet funnel 4 .

[0030] The threaded rod 11 is fixedly connected to the transmission gear 25 in the gear set 10 .

[0031] The specific brewing process of the present application is as follows: the liquid outlet funnel 4 is engaged with the brewing port 3, and the coffee beans are ground into powder by the grinding mechanism 6 and then pushed into the powder pressing chamber 8 (i.e., the powder bowl 5 on the liquid outlet funnel 4) by the powder pushing plate 21, and the first motor 9 drives the gear set 10 to rotate, and the threaded rods 11 on both sides of the gear set 10 are driven to rotate simultaneously, and the threaded block 12 is driven to move downward to flatten the coffee powder in the powder bowl 5 during the rotation of the threaded rod 11, and after the coffee powder is flattened, hot water is injected into the water supply pipe 14, and the hot water is discharged through the water outlet hole mesh on the powder pressing plate 13 to brew the coffee powder on the powder bowl 5.

[0032] After the automatic grinding and loading of coffee powder is completed, the double threaded rod 11 is driven to rotate by the first motor 9, driving the threaded block 12 to move downward, and the powder pressing plate 13 at the bottom of the threaded block 12 applies pressure to the coffee powder. The pressure can be set by an electronic program to realize the automatic powder pressing function. The double threaded rod 11 is driven by the gear set 10, and the threaded rod 11 only rotates but does not move up and down, so the space of the machine body 1 can be compressed more compactly.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A coffee machine with an automatic powder pressing mechanism, characterized in that: include: The machine body has a bean inlet at the top, a brewing port at one side of the middle of the machine body, a liquid outlet funnel detachably connected to the brewing port, a powder bowl is provided in the liquid outlet funnel, a grinding mechanism is connected to the bottom of the bean inlet, and a powder outlet is provided at the bottom of the grinding mechanism; A powder pressing mechanism, comprising a powder pressing chamber, a first motor, a gear set, two threaded rods, a threaded block and a powder pressing plate, wherein the powder pressing chamber is communicated with the powder outlet, the powder pressing chamber is arranged inside the machine body, the first motor is arranged on one side of the powder pressing chamber, the two threaded rods are rotatably connected to the two sides inside the powder pressing chamber respectively, the first motor drives the threaded rods to rotate through the gear set, the threaded block is threadedly connected to the threaded rods, the powder pressing plate is arranged at the bottom of the threaded block, and the dispensing port is arranged at the bottom of the powder pressing chamber; A water supply pipeline is communicated with the powder pressing plate.

2. The coffee machine with automatic powder pressing mechanism according to claim 1, characterized in that: A guide block is arranged on one side of the threaded block, and a guide groove for the guide block to move is opened on one side of the powder pressing chamber.

3. The coffee machine with automatic powder pressing mechanism according to claim 1, characterized in that: The threaded rod and the threaded block are respectively provided with matched trapezoidal thread teeth.

4. The coffee machine with automatic powder pressing mechanism according to claim 1, characterized in that: The powder pressing plate is provided with a water outlet network, and the water outlet network is communicated with the water supply pipeline.

5. The coffee machine with automatic powder pressing mechanism according to claim 1, characterized in that: The grinding mechanism includes a second motor, a grinding chamber, an outer grinding wheel and an inner grinding wheel. The grinding chamber is arranged inside the machine body. The inner grinding wheel is rotatably arranged in the grinding chamber. The inner grinding wheel is rotatably connected to the output end of the second motor. The outer grinding wheel is arranged at the upper part of the grinding chamber. The bean inlet is arranged at the top of the grinding chamber, and the powder outlet is arranged at the bottom of the grinding chamber.

6. The coffee machine with automatic powder pressing mechanism according to claim 5, characterized in that: A powder pushing plate is rotatably provided at the bottom of the inner grinding wheel, and the powder pushing plate is used to push the ground coffee powder into the powder outlet.

7. The coffee machine with automatic powder pressing mechanism according to claim 1, characterized in that: The powder pressing chamber and the gear set are respectively provided with shaft sleeves, and the threaded rod is rotatably connected between the upper and lower shaft sleeves on the same side.

8. The coffee machine with automatic powder pressing mechanism according to claim 1, characterized in that: A plurality of card slots are arranged on the inner side of the dispensing port, and a plurality of card blocks matching the card slots are arranged on the outer side of the top of the liquid outlet funnel.

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