Adaptive Cutting Aperture for Variable Stem Destemming
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Solution Overview
Problem
Conventional destemming devices require significant manual labor to prepare plants for processing and are inefficient in handling large volumes due to fixed cutting apertures that do not adapt to varying stem sizes and shapes.
Innovation Solution
The destemming device features a cutting aperture formed by spring-mounted cutting fingers that adjust to conform to the shape of the plant stem, combined with a belt system that grips and pulls the stem through, allowing for efficient removal of leaves and buds without the need for manual pre-processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed cutting apertures are used in conventional destemming devices, then the device structure is simple, but the device cannot adapt to varying stem sizes and shapes, requiring significant manual labor for plant preparation
Solution Approach 1:
The cutting aperture is transformed from a fixed structure to a dynamic one by spring-mounted cutting fingers that can move independently. Each cutting finger is equipped with a spring mechanism allowing it to flex and adjust its position, enabling the aperture to dynamically adapt to different stem sizes and shapes while maintaining structural simplicity
Solution Approach 2:
The cutting aperture is segmented into multiple independent cutting fingers rather than a single fixed opening. Each finger can move independently via its spring mechanism, allowing the aperture to conform to varying stem geometries. This segmentation provides adaptability without significantly increasing overall device complexity
2Productivity
If fixed cutting apertures are used, then the device structure is simple, but processing efficiency decreases due to required manual pre-processing of plant material
Solution Approach 1:
The dynamic cutting aperture with spring-mounted fingers automatically adapts to different stem configurations during processing, eliminating the need for manual pre-processing to fit specific aperture dimensions. This increases productivity while keeping the device structure relatively simple
Solution Approach 2:
The spring-mounted cutting fingers automatically adjust to accommodate varying stem sizes and shapes without operator intervention. The system serves itself by adapting to the material being processed, eliminating manual pre-processing steps and improving productivity
3Adaptability or versatility
If spring-mounted cutting fingers are used, then adaptability to stem shapes is improved, but device complexity increases
Solution Approach 1:
The cutting mechanism is segmented into multiple independent fingers, each with its own spring mount. This segmentation allows each finger to independently conform to the stem shape while keeping individual finger mechanisms simple, balancing adaptability with manageable complexity
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
This solution significantly reduces manual labor and processing time while maintaining high product quality by adapting to the shape of the plant stem, enabling the efficient processing of large volumes with minimal bud loss.
Implementation Method 1
a corresponding compression spring around the corresponding spring mount; and a corresponding spring cap joined to the distal end of the corresponding spring mount; such that the given cutting finger floats relative to the first support block or the second support block
Data Source
AI summary
A destemming device includes a housing, a motor, and a belt system configured to fit within the housing. The housing includes at least one cutting aperture. The cutting aperture is formed from a plurality of cutting fingers that have a cutting edge. When a plant stem is pressed or fed into the device, the cutting fingers create a cutting aperture that is sized to conform closely to the plant stem.