Powder quantity recognition coffee machine

Abstract

The invention discloses a powder quantity recognition coffee machine which comprises a bean grinder, a bean box and a brewing system, wherein the brewing system comprises a brewing cup, a brewing plug, a first motor, a rotation number sensor and a controller; a thread is arranged at the peripheral surface of the brewing plug, a screw cap is sleeved on the peripheral surface of the brewing plug, and the brewing plug is in sealed connection with the brewing cup; the first motor is used for driving the screw cap to rotate to drive the brewing plug to move downwards; the rotation number sensor isused for sensing the rotation number n of the screw cap; a datum line is arranged on the brewing cup, and a corresponding screw cap datum turn number n0 is arranged on the controller. When the rotation number n of the screw cap is larger than n0, the powder quantity is too small, so that bean grinding time t is prolonged in the next grinding to improve the powder quantity; when the rotation numbern of the screw cap is smaller than n0, the powder quantity is too large, so that the bean grinding time t in the next grinding can be shortened to reduce the powder quantity. By means of a control process, the coffee powder quantity can be controlled within a standard range, and the phenomenon that the coffee powder quantity is unbalance is avoided.

Description

technical field [0001] The invention relates to the field of coffee machines, more specifically, to a coffee machine with powder quantity recognition. Background technique [0002] A fully automatic coffee machine is a coffee brewing device that integrates coffee brewing processes such as grinding, pressing, filling, and brewing. [0003] As far as the prior art is concerned, most of the fully automatic coffee machines on the market are equipped with a system for adjusting the powder volume and fineness level, which can obtain coffee powder of different particle sizes according to the user's preference. However, the grinding time will not be automatically adapted according to the thickness of the particles, that is, the grinding time is a fixed value, so that when the coarse powder level is set, the amount of ground powder will increase; while when the fine powder is set When graded, the amount of powder produced will be less. The above-mentioned problem of unbalanced powd...

AI Technical Summary

Problems solved by technology

The above-mentioned problem of unbalanced powder output due to the degree of thickness not only affects the taste of coffee brewing, but also increases the load on the brewing system when the powder is too much, affecting the service life of the coffee machine

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