Powder pressing device of coffee machine

Abstract

The invention provides a coffee machine powder pressing device which comprises a powder discharging opening formed in the side edge of a powder pressing bin and used for receiving coffee powder from a bean grinder. The powder distribution plate is positioned between the powder discharging opening and the powder bowl and has a powder distribution posture inclining towards the center of the powder bowl; the groove is formed in the inner wall of the powder pressing bin and used for containing the powder distribution plate in the powder pressing process; and the elastic reset mechanism is connected to the powder distribution plate and used for keeping the inclined posture of the powder distribution plate in a non-powder-pressing state.

Description

TECHNICAL FIELD

[0001] The present application relates to coffee machines, in particular to a coffee machine powder pressing device. BACKGROUND

[0002] In the field of traditional coffee machines, the powder pressing process is one of the key links that affect the final coffee quality. When the coffee powder ground by the coffee grinder falls naturally into the powder pressing bin by gravity, it often concentrates in the edge area of the powder bowl, resulting in inconsistent density after pressing. This uneven distribution can cause inconsistent water flow paths through the coffee powder during extraction, with some areas being over-extracted and some areas being under-extracted, severely affecting the taste and quality balance of the coffee.

[0003] Some high-end coffee shops use independent manual powder distributors to evenly distribute coffee powder in the powder bowl before pressing. Although this method can improve the uniformity of distribution, it increases the operation steps and time cost, and is not suitable for automated coffee machines.

[0004] Some coffee machines attempt to install fixed-angle flow guides above the powder bowl, but this design cannot adapt to the needs of different powder quantities and pressing processes, and may cause interference or secondary disturbance of coffee powder when the pressing head is pressed down. SUMMARY

[0005] In view of the above defects of the prior art, the present application provides a coffee machine powder pressing device, which comprises a powder outlet arranged on the side of the powder pressing bin for receiving coffee powder from the coffee grinder; a movable powder distribution plate located between the powder outlet and the powder bowl, having an inclined powder distribution posture towards the center of the powder bowl; a groove arranged on the inner wall of the powder pressing bin for accommodating the powder distribution plate during the pressing process; and an elastic reset mechanism connected to the powder distribution plate for maintaining the inclined posture of the powder distribution plate in the non-pressing state.

[0006] Further, the inclination angle of the powder distribution plate is adjustable to adapt to the distribution needs of coffee powder of different particle sizes.

[0007] Further, the elastic reset mechanism is a tension spring structure, one end of which is fixed to the outer wall of the powder pressing bin and the other end is connected to the upper end of the powder distribution plate.

[0008] Further, it further comprises a pressing component arranged on the pressing head for pushing the powder distribution plate into the groove during the pressing process of the pressing head.

[0009] Further, the surface of the powder distribution plate is provided with flow guide textures for guiding the uniform dispersion of coffee powder to the central area.

[0010] Further, the contact surface of the pressing component and the powder distribution plate is a bevel to ensure smooth retraction of the powder distribution plate.

[0011] The coffee powder distribution structure of the present application fundamentally solves the technical problem of uneven distribution of coffee powder in traditional coffee machines by innovative design of the coffee powder distribution plate. When the coffee powder in the powder outlet is guided by the coffee powder distribution plate, it will be naturally and evenly dispersed to the center area of the powder bowl, avoiding the problem of coffee powder accumulation at the edge in traditional design. This uniform distribution ensures the consistency of the coffee powder density after compression, providing ideal foundation conditions for the subsequent extraction process.

[0012] The concept, specific structure and technical effects of the present application will be further described below in combination with the drawings, so as to fully understand the purpose, features and effects of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is an internal view of the coffee powder compression device in a preferred embodiment of the present application; Fig. 2 is an exploded view of the coffee powder compression head of the coffee powder compression device in a preferred embodiment of the present application; Fig. 3 is a sectional view of the coffee powder compression device in a preferred embodiment of the present application. DETAILED DESCRIPTION

[0014] The following describes several preferred embodiments of the present application with reference to the drawings, so that the technical content of the present application is more clear and easy to understand. The present application can be embodied in many different forms of embodiments, and the protection scope of the present application is not limited to the embodiments mentioned herein.

[0015] In the drawings, the same components have the same reference numerals, and components with similar structures or functions have similar reference numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present application does not limit the size and thickness of each component. In order to make the drawing clearer, the thickness of some components is appropriately exaggerated in some places in the drawing.

[0016] The coffee powder compression device according to the present application is shown in Figs. 1-3 The ground coffee powder in the coffee bean grinder 2 falls into the powder bowl 3 at the bottom of the powder compression bin 1 through the powder outlet 21 provided at the side of the powder compression bin 1. The coffee powder compression head 4 moves up and down in the powder compression bin 1 under the drive of the powder compression connecting rod 41 driven by the powder compression handle 6, and the coffee powder in the powder bowl 3 is compressed.

[0017] If the coffee powder in the grinder 2 directly falls into the powder bin 1 by gravity, the landing point will be concentrated on the edge of the powder bowl 3, and if the powder head 4 is pressed at this time, it will inevitably cause the coffee powder in the powder bowl 3 to be compacted and loose at the same time, ultimately resulting in poor coffee taste. Therefore, as shown in the figure, the present application is provided with a powder distribution plate 5 inclined to the center of the powder bowl 3 at the lower powder port 21 of the powder bin 1, so that the coffee powder entering from the lower powder port 21 falls into the center of the powder bowl 3 through the powder distribution plate 5, and a groove 11 is provided on the inner wall of the powder bin 1 to accommodate the powder distribution plate 5. The powder distribution plate 5 is connected to the elastic hook 51, and by adjusting the elastic force of the elastic hook 51, the initial inclination angle of the powder distribution plate 5 can be adjusted to adapt to the distribution requirements of coffee powder of different particle sizes. The corresponding part of the powder head 4 side is provided with a pressing plate 46. In this way, when the powder head 4 is pressed, the powder distribution plate 5 is pressed into the groove 11 of the inner wall of the powder bin 1 under the action of the pressing plate 46 of the powder head 4. When the powder head 4 is lifted, the pressing plate 46 and the powder distribution plate 5 are separated, and the powder distribution plate 5 returns to the inclined state to the center of the powder bowl 3 under the action of the elastic hook 51.

[0018] In the prior art, the user needs to rely on his / her senses to determine the degree of powder pressing, which causes difficulty in determining whether the coffee powder is compacted, ultimately affecting the quality of coffee and user experience. Therefore, as shown in the figure, the present application is provided with two cylinders 43 on the inner bottom surface of the powder head 4, and compression springs 44 are arranged in the cylinders 43, and vertical guide opening slots 431 are arranged on the side surface of the cylinders. The powder pressing cross pin 42 connected to the powder pressing connecting rod 41 is arranged above the two compression springs 44 and can compress the compression springs 44 in the cylinder 43 and further move downward along the guide opening slot 431. A micro switch 45 is arranged below the powder pressing cross pin 42 on the inner bottom surface of the powder head 4. In this way, when the powder pressing cross pin 42 further moves downward by overcoming the preset spring force value of the compression spring 44, the micro switch 45 will be triggered, providing a signal to the chip, and the chip will issue a sound, light or sound and light at the same time to prompt the user that the powder pressing force is qualified.

[0019] The above describes the preferred embodiments of the present application in detail. It should be understood that those skilled in the art can make many modifications and changes without creative labor based on the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment based on the prior art according to the concept of the present application shall be within the protection scope determined by the claims.

Claims

1. A coffee machine tamping device, characterized in that, It includes a powder inlet located on the side of the tamping chamber for receiving coffee powder from the grinder; and a movable powder distribution plate located between the powder inlet and the container, which has a powder distribution posture inclined towards the center of the container. A groove is provided on the inner wall of the powder pressing chamber to receive the powder distribution plate during the powder pressing process; an elastic reset mechanism is connected to the powder distribution plate to maintain the tilted posture of the powder distribution plate when the powder is not pressing.

2. The coffee machine tamping device as described in claim 1, wherein, The tilt angle of the powder distribution plate is adjustable to accommodate the distribution needs of coffee powder with different particle sizes.

3. The coffee machine tamping device as described in claim 1, wherein, The elastic reset mechanism is a tension spring structure, with one end fixed to the outer wall of the powder pressing chamber and the other end connected to the upper end of the powder distribution plate.

4. The coffee machine tamping device as described in claim 1, wherein, It also includes a pressing component disposed on the powder pressing head, used to push the powder distribution plate into the groove during the pressing of the powder pressing head.

5. The coffee machine tamping device as described in claim 1, wherein, The surface of the powder distribution plate is provided with a flow-guiding texture to guide the coffee powder to be evenly dispersed towards the central area.

6. The coffee machine tamping device as described in claim 1, wherein, The contact surface between the extrusion component and the powder distribution plate is inclined to ensure that the powder distribution plate retracts smoothly.

Images