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Method for controlling a coffee machine grinder

A coffee machine and grinder technology, applied in the field of controlling coffee machine grinders, can solve problems such as difficult adjustment

Active Publication Date: 2010-07-14
DE LONGHI SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Numerous parameter variables that depend on the type of coffee used on the one hand (specifically coffee origin, brand, roast and moisture content) and on the other hand the grinder (specifically grinding system, mechanical settings at the end of the test run, grinding wheels wear and the amount of coffee put in) many parameter variables, making it difficult to properly adjust to user taste

Method used

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  • Method for controlling a coffee machine grinder
  • Method for controlling a coffee machine grinder

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Embodiment Construction

[0014] Referring to the accompanying drawings, an automatic coffee machine grinder is generally indicated by reference numeral 1 .

[0015] The grinding machine 1 comprises an inner grinding wheel 2 and an outer grinding wheel 4 which are coaxial with respect to an axis 6 and define a gap 5 which determines the size of the particles to be ground therein.

[0016] The inner grinding wheel 2 can be driven in rotation about the axis 6 by the first motor 3, while the adjusting ring nut 9 of the gap 5 is in operative engagement with the outer grinding wheel 4, so that the latter (outer grinding wheel 4) translates parallel to the axis 6 in order to be able to modify the gap 5 its own width.

[0017] Specifically, the teeth 7 protruding radially from the periphery of the support cup 20 of the outer grinding wheel 4 engage with a cam profile 8 provided along the inner side wall of an adjusting ring nut 9 which in turn has external teeth 15 which in turn Meshes with a gear 10 carried...

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Abstract

The method for controlling a coffee machine grinder comprises one step of measuring the actual value of a physical quantity relating to the percolation process and one step of modifying the ground coffee grain size at least for the next percolation so that a possible detected deviation between the actual value and a reference value for the physical quantity is compensated.

Description

technical field [0001] The present invention relates to a method of controlling the grinder of a coffee machine. Background technique [0002] The particle size of the coffee powder loaded into the infusion chamber during the preparation of the beverage is one of the most important variables in determining the final result. [0003] In fact, the particle size of the coffee grounds greatly affects the hydraulic conditions of the percolation, thereby determining the pressure drop of the percolation water, which in turn determines the flow rate provided by the pump and the thermal state of the cooking vessel. [0004] Fine grinding results in increased extraction of the contents of the coffee powder, thus making a stronger and thicker drink with a lot of foam, whereas coarse grinding is more suitable for preparing coffee with less extraction and less foam. [0005] Currently, the particle size is generally adjusted purely mechanically, and is determined by the user manually se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47J31/42A47J42/08
CPCA47J31/42A47J42/08
Inventor G·德龙
Owner DE LONGHI SPA
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