Grinding Mill Stone Controller Assembly for Compression Force Regulation
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Solution Overview
Problem
Grinding mills with mill stones face challenges in controlling texture and size of final products due to variable compression force, require frequent cleaning, and have complex mechanical and electrical parts that complicate assembly and repair.
Innovation Solution
A grinding mill design with a base that secures both electrical and mechanical parts, allowing easy access and adjustment of mill stones through a mill stone controller assembly and a detachable hopper, reducing mechanical complexity and facilitating assembly and repair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional mechanical devices are used to regulate mill stones, then control over compression force is achieved, but device complexity increases and manufacturing cost rises
Solution Approach 1:
The patent removes traditional complex mechanical regulation devices (springs, levers, adjustment mechanisms) from the mill stone assembly. Instead, it uses a simple hopper weight system where the hopper's own weight provides the compression force, and regulation is achieved by simply adding or removing weight plates from the hopper base, dramatically simplifying the mechanical structure while maintaining operational control
Solution Approach 2:
The patent changes the parameter of compression force control from mechanical adjustment to gravitational loading. By varying the weight of the hopper (through removable weight plates), the compression force between mill stones is easily regulated without complex mechanisms, transforming a mechanical control problem into a simple mass variation problem
2Productivity
If mill stones are located in the center of the mill, then grinding efficiency is improved, but access for cleaning becomes difficult requiring multiple mechanical steps
Solution Approach 1:
The patent divides the mill into separable modules: the hopper assembly (containing upper mill stone) can be detached from the base assembly (containing lower mill stone). This segmentation allows users to easily remove the hopper for cleaning mill stones without complex disassembly procedures, while maintaining central location for efficient grinding when assembled
3Volume of moving object
If multiple mechanical and electrical parts are enclosed in a diminutive housing, then mill size is minimized, but assembly and repair time increases due to careful placement requirements
Solution Approach 1:
The patent segments the mill into distinct assemblies (hopper assembly, base assembly, motor assembly) that can be pre-assembled and tested separately, then quickly combined. This modular approach reduces final assembly time and facilitates repair by allowing replacement of entire assemblies rather than individual components within a confined housing
Solution Approach 2:
The base assembly serves multiple functions: it houses the motor, supports the lower mill stone, provides structural stability, and includes mounting points for electrical components. This multi-functionality reduces the number of separate parts needed, simplifying assembly while maintaining compact overall size
4Ease of operation
If traditional mill stone regulation mechanisms are used, then compression force control is achieved, but mechanical wear and noise increase
Solution Approach 1:
The patent eliminates traditional mechanical regulation devices (springs, levers, adjustment mechanisms) that generate noise and vibration through friction and movement. The replacement gravity-based system using hopper weight provides silent, vibration-free compression force control, removing the source of harmful mechanical noise while maintaining operational capability
Data Source
AI summary
An improved grinding mill that utilizes mill stones that minimizing the mechanical processes required to regulating the mill stones and allow an user to gain quick and easy access to the mill stones by removing a hopper. In addition, to provide a base frame for the mill that secures both mechanical and electrical parts including the mill housing to reduce manufacture and repair time.