Automatic powder feeding and feeding module for coffee machine

Abstract

The utility model discloses an automatic powder feeding and feeding module for a coffee machine, which comprises a container, a powder feeding channel communicated with an extraction channel is arranged in the container, and a powder feeding component capable of moving to the extraction channel and enabling powder to fall into a coffee funnel is arranged in the powder feeding channel; the container is connected with a powder feeding channel used for conveying powder to the powder conveying assembly. The container is provided with a second motor used for driving the powder feeding assembly to reciprocate between the first position and the second position along the powder feeding channel, and the second motor is in transmission connection with the powder feeding assembly through a transmission module. The powder feeding assembly can be prevented from being communicated with the extraction channel all the time, and when powder is added into the coffee funnel, the powder feeding assembly moves into the extraction channel along the powder feeding channel, so that powder falls into the coffee funnel, and then the powder feeding assembly returns to the powder feeding channel; by means of the design, steam generated during brewing can be prevented from affecting powder in the powder feeding assembly.

Description

Technical Field

[0001] The utility model relates to an automatic powder loading and feeding module for a coffee machine. Background Art

[0002] Prior art, such as the Chinese invention patent application document, with publication number CN115153304A, discloses an automatic powder pressing component, a brewing system and a coffee bean grinding machine, wherein the automatic powder pressing component comprises: a power mechanism, including a power component and a power bracket, the power bracket being movably arranged on the main body bracket of the brewing system; an extrusion component, connected to the power component and capable of rotating under the drive of the power component; an extrusion brewing head, detachably connected to the extrusion component, the extrusion component is used to drive the extrusion brewing head to move along the rotation axis of the extrusion component; an elastic component, arranged on the power bracket, for applying a downward elastic force to the power bracket, so that the power bracket can move up and down relative to the main body bracket. The automatic powder pressing component of the utility model embodiment can drive the extrusion brewing head to rise and fall to achieve powder pressing.

[0003] In the prior art, a powder channel entrance is provided on the frame, and the powder channel entrance is connected to the powder channel, and the powder channel is used to connect to the powder outlet of the bean grinding assembly of the coffee machine. This setting of the powder adding channel easily causes steam to enter the powder lowering channel, resulting in blockage of the powder lowering and affecting normal use. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an automatic powder feeding module for a coffee machine.

[0005] An automatic powder feeding module for a coffee machine designed for this purpose comprises a container, wherein a powder feeding channel connected to an extraction channel is arranged in the container, and a powder feeding component movable to the extraction channel and allowing powder to fall into a coffee funnel is arranged in the powder feeding channel;

[0006] The container is connected to a powder feeding channel for conveying powder to the powder feeding assembly;

[0007] The container is provided with a second motor for driving the powder delivery assembly to reciprocate between a first position and a second position along the powder delivery channel, and the second motor is transmission-connected to the powder delivery assembly through a transmission module.

[0008] The powder delivery component provided in the utility model can avoid being connected to the extraction channel all the time. When adding powder to the coffee funnel, the powder delivery component moves along the powder delivery channel to the extraction channel to make the powder fall into the coffee funnel, and then the powder delivery component returns to the powder delivery channel. This design can avoid the steam generated during brewing affecting the powder in the powder delivery component. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is one of the cross-sectional structural schematic diagrams of the utility model;

[0010] Figure 2 It is a schematic diagram of the structure of the container, the extraction head and the screw rod;

[0011] Figure 3 This is the second schematic diagram of the cross-sectional structure of the utility model;

[0012] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0013] Figure 5 This is one of the schematic diagrams of the decomposed structure of the utility model;

[0014] Figure 6 This is the second schematic diagram of the decomposition structure of the utility model;

[0015] Figure 7 This is the third schematic diagram of the decomposition structure of the present utility model. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] See also Figure 1-Figure 7 , an automatic powder feeding module, which is applied to the automatic powder feeding, powder pressing and powder distribution structure of the coffee machine, the structure comprises a container 10, wherein the container 10 is provided with an extraction channel 110 and a powder feeding channel 120 which are interconnected, the extraction channel 110 is provided with an opening at the lower end, the powder feeding channel 120 is provided with a powder feeding component 50 which can move to the extraction channel 110 and make the powder fall into the coffee funnel 60, and the extraction channel 110 is provided with an extraction head 20 which can move relative to the extraction channel 110;

[0018] The extraction head 20 is provided with a connection hole 200, and a lifting and rotating module 40 is provided above the extraction channel 110. The lifting and rotating module 40 includes a nut 420 that is rotatably arranged and a driving module 80 for driving the nut 420 to rotate. The nut 420 is threadedly connected with a screw rod 440, and the lower end of the screw rod 440 is inserted into the connection hole 200. A first matching portion 700 and a second matching portion 70 are arranged on the screw rod 440 at intervals, and the extraction head 20 is arranged between the first matching portion 700 and the second matching portion 70;

[0019] A powder distribution element 710 is disposed below the extraction head 20, and the powder distribution element 710 is fixedly connected to the screw rod 440;

[0020] The first matching portion 700 cooperates with the second matching portion 70 to apply a first force to the extraction head 20, so that the screw rod 440 and the extraction head 20 are connected as a whole to achieve synchronous lifting and lowering motion;

[0021] The screw rod 440 is provided with an acting portion 441, and the nut 420 is provided with an elastic element 400 for applying a second acting force to the acting portion 441, so that the screw rod 440 can rotate relative to the extraction head 20;

[0022] The first force is greater than the second force.

[0023] In the above embodiment, the first force is generated by the clamping force of the first matching portion 700 and the second matching portion 70 on the extraction head 20 .

[0024] Based on the above embodiment, under the constraint of the first force, the extraction head and the screw are connected as one; so that under the action of the driving module, the nut rotates to drive the screw and the extraction head to move downward relative to the extraction channel. When the screw moves down to the position where the action part and the elastic element overlap, the elastic element applies a second action force to the screw. At this time, the screw is affected by the first action force and the second action force. When driven by the nut, the screw will rotate and move downward at the same time. In this process, the screw drives the powder distribution element to rotate to perform the powder distribution process on the powder surface. After a short rotation, under the action of the first force, the screw moves downward to squeeze the elastic element out of the action part to follow the extraction head to continue to move downward to perform the powder pressing process, until the extraction head moves to the preset position, and the nut reverses to drive the screw and the extraction head to reset upward. In this structure, the utility model realizes that a single driving module can realize the dual processes of moving powder pressing and rotating powder distribution. The overall structure is not only small in size and low in manufacturing cost, but also the powder distribution can improve the quality of coffee brewing.

[0025] See also Figure 3 and Figure 4 A connecting shaft 442 is provided at the lower end of the screw rod 440 . The connecting shaft 442 is inserted into the connecting hole 200 . The powder distributing element 710 is fixedly connected to the lower end of the connecting shaft 442 .

[0026] Furthermore, the screw rod 440 and the connecting shaft 442 are an integrated structure.

[0027] See also Figure 2 and Figure 3 The action portion 441 is a recessed portion 444 disposed on the screw rod 440 . When the recessed portion 444 overlaps with the elastic element 400 , the elastic element 400 can be inserted into the recessed portion 444 .

[0028] Furthermore, the recessed portion 444 is a groove provided on the screw rod 440 , and is preferably an annular groove or a strip groove.

[0029] See also Figure 3 The nut 420 is provided with a pin hole 421, one end of the pin hole 421 can be communicated with the recessed portion 444, the elastic element 400 includes a pin 450 and a spring 460, the pin 450 is movably arranged in the pin hole 421, and the spring 460 applies a force to the pin 450 to move toward one side of the screw rod 440.

[0030] For further information, see Figure 3 , two elastic elements 400 and two acting parts 441 are provided and are respectively provided on the left and right sides.

[0031] See also Figure 3 The second matching portion 70 is the upper end surface of the powder distributing element 710 , and the upper end surface of the powder distributing element 710 is in contact with the lower end surface of the extraction head 20 .

[0032] See also Figure 3 and Figure 4 A matching piece 730 is provided below the extraction head 20 , and the matching piece 730 is fixedly connected to the screw rod 440 . The second matching portion 70 is the upper end surface of the matching piece 730 , and the upper end surface of the matching piece 730 is in contact with the lower end surface of the extraction head 20 .

[0033] See also Figure 3 The first matching portion 700 is the lower end surface of the screw rod 440 , and the lower end surface of the screw rod 440 is in contact with the upper end surface of the extraction head 20 .

[0034] In the utility model, the extraction head 20 is clamped and fixed by the lower end surface of the screw rod 440 and the powder distribution element 710 or the matching piece 730. When there is no influence of the second force, the first force connects the screw rod and the extraction head as a whole. Under the guidance of the extraction head and the container, the rotation of the nut can drive the screw rod and the extraction head to move downward or upward.

[0035] See also Figure 2 A guide groove 130 is provided in the extraction channel 110, and a guide block 210 is provided on the extraction head 20. The guide block 210 is movably provided in the guide groove 130. Under the guidance of this structure, the extraction head 20 can be constrained to move back and forth along the extraction channel 110, and cannot rotate relative to the extraction channel 110.

[0036] See also Figure 6A fixing frame 410 is arranged above the extraction channel 110, the nut 420 is rotatably arranged on the fixing frame 410, the nut 420 is fixedly connected with a driven element 430, the driving module 80 includes a first motor 810 fixedly mounted on the fixing frame 410, the motor shaft of the first motor 810 is connected with a driving element 820, and the driving element 820 is transmission-connected with the driven element 430.

[0037] Further, the driven element 430 is a worm gear, and the driving element 820 is a worm.

[0038] Furthermore, a spring installation cavity 431 is provided on the driven element 430 . The spring installation cavity 431 is communicated with the pin hole 421 , and the spring 460 is disposed in the spring installation cavity 431 .

[0039] See also Figure 4 and Figure 5 The powder distributing element 710 is provided with a flange hole 711, the upper end surface of the matching piece 730 is provided with a transmission groove 731, the lower end of the connecting shaft 442 is inserted into the transmission groove 731, and the bolt 720 passes through the flange hole 711, the matching piece 730 and is threadedly connected with the connecting shaft 442.

[0040] The matching piece 730 is provided with a fitting portion 731 extending downward, and the lower end surface of the fitting portion 731 fits with the upper end surface of the powder distributing element 710;

[0041] See also Figure 4 and Figure 5 The mating piece 730 is provided with a countersunk hole 732 , and the flange of the flange hole 711 is embedded in the countersunk hole 732 .

[0042] During assembly, the bolt 720 passes through the flange hole 711 and the countersunk hole 732 to connect with the connecting shaft 442. When the bolt 720 is locked, the head of the bolt 720 presses the flange of the flange hole 711 into the countersunk hole 732 so that the flange and the mating piece 730 fit tightly together. At the same time, under the action of the fitting portion 731, the powder distribution element 710 and the mating piece 730 can be further tightly connected together.

[0043] See also Figure 7The powder feeding component 50 includes a powder feeding container 500 that is movably arranged in the powder feeding channel 120. The powder feeding container 500 reciprocates between a first position and a second position along the powder feeding channel 120. The powder feeding container 500 is opened at both upper and lower ends. A powder inlet channel 560 is arranged on the powder feeding channel 120 at the first position. When the powder feeding container 500 is at the first position, the powder inlet channel 560 is communicated with the powder feeding container 500. When the powder feeding container 500 is at the second position, the powder feeding container 500 is communicated with the extraction channel 110.

[0044] During the coffee extraction process, the powder delivery container 500 is located at the first position of the powder delivery channel 120. At the same time, both upper and lower end surfaces of the powder delivery container 500 are in contact with the inner wall of the powder delivery channel 120, so that when in the first position, the inside of the powder delivery container 500 and the inside of the powder inlet channel 560 are not connected to the extraction channel 110, so that water vapor can be prevented from affecting the powder in the powder delivery container 500 or the powder inlet channel 560.

[0045] Furthermore, a shielding plate 510 is provided on the powder delivery container 500; when the powder delivery container 500 moves from the first position to the second position, the shielding plate 510 shields and seals the input end of the powder inlet channel 560, thereby preventing the external powder from entering the powder delivery channel 120 from the powder inlet channel 560 after the powder delivery container leaves the first position.

[0046] See also Figure 2 The powder feeding channel 120 above the first position is provided with a powder inlet 561 , and the powder inlet channel 560 is communicated with the powder inlet 561 .

[0047] See also Figure 7 The powder delivery channel 120 is provided with sensors 550 for sensing the powder delivery container 500 at both the first position and the second position. The sensor 550 may be an existing photoelectric switch.

[0048] See also Figure 7 The container 10 is provided with a second motor 530 for driving the powder feeding assembly 50 to reciprocate between the first position and the second position along the powder feeding channel 120 . The second motor 530 is connected to the powder feeding assembly 50 through a transmission module.

[0049] Furthermore, the transmission module is connected to the powder delivery container 500 using an existing connecting rod structure or a gear rack transmission structure to drive the powder delivery container 500 to reciprocate between the first position and the second position along the powder delivery channel 120 .

[0050] Furthermore, the powder delivery channel 120 is an arc-shaped channel, and the transmission mold includes a swing rod 520 connected to the powder delivery container 500, and the output power shaft 540 of the second motor 530 is connected to the swing rod 520 to drive the swing rod 520 to swing and drive the powder delivery container 500 to move along the powder delivery channel 120.

[0051] See also Figure 7 The container 10 includes a lower shell 101 and an upper shell 102 which are assembled with each other.

[0052] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0054] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic powder feeding module for a coffee machine, comprising a container (10), wherein a powder feeding channel (120) is provided in the container (10) and is interconnected with an extraction channel (110), wherein: The powder delivery channel (120) is provided with a powder delivery component (50) which can move to the extraction channel (110) and allow the powder to fall into the coffee funnel (60); The container (10) is connected to a powder feeding channel (560) for conveying powder to the powder feeding assembly (50); The container (10) is provided with a second motor (530) for driving the powder delivery assembly (50) to reciprocate between a first position and a second position along the powder delivery channel (120); the second motor (530) is connected to the powder delivery assembly (50) by a transmission module.

2. The automatic powder feeding module for a coffee machine according to claim 1, characterized in that: The powder delivery component (50) comprises a powder delivery container (500) movably arranged in the powder delivery channel (120), the powder delivery container (500) reciprocatingly moving between a first position and a second position along the powder delivery channel (120), and the powder delivery container (500) is open at both upper and lower ends; The upper and lower end surfaces of the powder delivery container (500) are both in contact with the inner wall of the powder delivery channel (120); When the powder delivery container (500) is located at the first position, the powder inlet channel (560) and the powder delivery container (500) are in communication with each other; When the powder delivery container (500) is located at the second position, the powder delivery container (500) and the extraction channel (110) are in communication with each other.

3. The automatic powder feeding module for a coffee machine according to claim 2, characterized in that: The powder delivery channel (120) is an arc-shaped channel, and the transmission module includes a swing rod (520) connected to the powder delivery container (500), and the output power shaft (540) of the second motor (530) is connected to the swing rod (520) to drive the swing rod (520) to swing, thereby driving the powder delivery container (500) to move along the powder delivery channel (120).

4. The automatic powder feeding module for a coffee machine according to claim 2, characterized in that: The powder delivery channel (120) is provided with sensors (550) at both the first position and the second position for sensing the powder delivery container (500).

5. The automatic powder feeding module for a coffee machine according to claim 2, characterized in that: The powder delivery container (500) is also provided with a shielding plate (510); when the powder delivery container (500) moves from the first position to the second position, the shielding plate (510) serves to shield and seal the input end of the powder feed channel (560).

Images