Precision Measurement Device Segmented Rotor for Uniform Feeding
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Solution Overview
Problem
In screw-type feeding structures, the introduction of air during material feeding affects speed and measurement accuracy, causing shear forces, inadequate measurement precision due to undivided measurement recesses, and fluid accumulation, which compromises subsequent product measurements.
Innovation Solution
A precision measurement device with a hollow housing and rotor forming a rotation cylinder, featuring three rings of measurement recesses with vertical and horizontal separators, a trapezoidal feed inlet, and an off-center discharge outlet, along with air blowing holes to prevent fluid accumulation, reducing shear forces and ensuring continuous, uniform material flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the rotor rotates at high speed to improve feeding speed, then productivity increases, but shear force increases causing non-uniform material entry and reduced measurement precision
Solution Approach 1:
The measurement recess is segmented into multiple sub-recesses by vertical and horizontal separators. This segmentation allows the material to be divided into smaller portions, reducing the impact of shear force on each individual portion and enabling uniform material entry even at higher rotor speeds, thus maintaining measurement precision while improving feeding speed.
2Productivity
If air pumping is used to feed material to improve feeding continuity, then productivity increases, but measurement accuracy deteriorates due to fluid accumulation and precipitation
Solution Approach 1:
The rotor rotates to dynamically feed material through the segmented measurement recesses. This dynamic mechanical feeding replaces static air pumping, ensuring continuous material flow without creating fluid accumulation or precipitation that would occur with air pumping, thus maintaining both feeding continuity and measurement accuracy.
3Device complexity
If the measurement recess is not divided to simplify structure, then device complexity decreases, but measurement precision deteriorates due to insufficient measurement division
Solution Approach 1:
The measurement recess is divided into multiple sub-recesses using vertical separators and horizontal separators. This segmentation enables fine-grained measurement of material portions while maintaining a relatively simple overall structure, achieving high measurement precision without excessive structural complexity.
4Productivity
If the feed inlet is designed with large opening to improve material entry, then productivity increases, but shear force increases causing non-uniform material flow
Solution Approach 1:
The large feed inlet opens into multiple segmented measurement sub-recesses. This segmentation distributes the incoming material flow into multiple smaller streams, reducing shear force effects and ensuring uniform material entry into each sub-recess, thus maintaining flow uniformity while allowing high overall material entry speed.
Data Source
AI summary
A precision measurement device includes a housing and a rotor. A feed inlet is provided at an upper side of the housing. A discharge outlet is provided at a lower side of the housing. The rotor is connected to a motor. Three rings of measurement recesses are formed on the outer wall of the rotor in correspondence with the feed inlet and the discharge outlet. An upper end of the feed inlet has a trapezoid shape which is narrow at the top and wide at the bottom. The discharge outlet is disposed off-center at an ascending position of the rotation cylinder, achieving an accurate measurement effect.