Bean grinding device and bean grinding coffee machine
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Solution Overview
Problem
Conventional coffee bean grinding devices struggle to produce uniform coffee powder due to manufacturing and assembly errors, resulting in varying amounts and sizes of ground coffee.
Innovation Solution
A bean grinding device with a dual-stage adjusting mechanism that allows precise adjustment of the distance between the outer and inner grinding wheels, enabling uniform grinding of coffee beans without requiring improved manufacturing and assembly accuracy, using a combination of track structures, snap-fit members, and rotatable gears to achieve consistent powder quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional single-stage adjusting mechanisms are used, then device structure is simple, but manufacturing and assembly errors cause non-uniform grinding powder
Solution Approach 1:
The adjusting mechanism is divided into two independent stages: a first adjusting mechanism that adjusts the axial position of the outer grinding wheel relative to the bean grinding chamber, and a second adjusting mechanism that adjusts the radial distance between the outer and inner grinding wheels. This segmentation allows each stage to independently compensate for different types of manufacturing and assembly errors, thereby achieving uniform grinding powder without requiring overly complex single-stage mechanisms.
2Manufacturing precision
If manufacturing and assembly accuracy of parts is improved, then uniformity of ground coffee powder is achieved, but manufacturing cost and difficulty increase
Solution Approach 1:
The patent transforms the static grinding system into a dynamic adjustable system. The first adjusting mechanism allows axial position adjustment of the outer grinding wheel, while the second adjusting mechanism enables radial distance adjustment between grinding wheels. This dynamic capability compensates for manufacturing and assembly variations without requiring higher manufacturing precision, thereby maintaining ease of manufacture while achieving uniform grinding results.
3Manufacturing precision
If dual-stage adjusting mechanisms are added, then uniformity of ground coffee powder is improved, but device structure becomes more complex
Solution Approach 1:
The dual-stage adjusting mechanism is segmented into two functionally distinct stages: the first stage adjusts axial position, and the second stage adjusts radial distance. Each stage is independently structured with its own adjusting ring, track structure, and fixing member. This segmentation clarifies the functional responsibilities of each component, making the overall complex structure more manageable and maintainable while achieving the desired uniformity in ground coffee powder.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device ensures consistent coffee powder quality across multiple grinding devices, regardless of batch or configuration, by allowing independent adjustment of the grinding wheel positions, thereby enhancing the uniformity and steadiness of the ground coffee.
Implementation Method 1
the snap-fit member is disposed on an outer side wall of the bean grinding chamber, and configured to slide along the first track structure and adjust a relative position between the first adjusting mechanism and the bean grinding chamber in the axial direction
Implementation Method 2
the fixing member is installed in the clamping member and inserted into the clamping groove
Implementation Method 3
the outer grinding wheel sleeve includes a protruding member and a position locking member; the protruding member is configured to be connected to the track of the second adjusting mechanism
Implementation Method 4
the position locking member is configured to be locked in the position locking groove and restrict a movement of the outer grinding wheel in a circumferential direction
Data Source
Figure 1
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Figure 4~5
AI summary
A bean grinding device 10 and a bean grinding coffee machine including the bean grinding device 10; the bean grinding device includes a grinding assembly and an adjusting assembly; the grinding assembly includes a bean grinding chamber (110), an outer grinding wheel (120), and an inner grinding wheel (130); the outer grinding wheel (120) and the inner grinding wheel (130) are disposed inside the bean grinding chamber (110); the adjusting assembly includes at least two stages of adjusting mechanisms; the at least two stages of adjusting mechanisms includes a first adjusting mechanism and a second adjusting mechanism; the first adjusting mechanism and the bean grinding chamber (110) are connected by means of a track; the second adjusting mechanism and the outer grinding wheel (120) are connected by means of a track; and positions of the first adjusting mechanism and the second adjusting mechanism are relatively fixed in an axial direction.