Food Slicing Machine With Multi-Revolution Knife Engagement
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Solution Overview
Problem
Existing slicing machines experience high wear and maintenance requirements due to rapid engagement and disengagement movements of the knife, leading to potential shredding and increased loads on the drive unit, especially at high knife speeds.
Innovation Solution
The slicing machine design includes an engagement movement of the knife that extends over more than one complete revolution, reducing engagement speed and acceleration, and a disengagement movement with a directional component parallel to gravity, allowing for a gentler operation and minimizing wear on the drive unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the knife performs rapid engagement and disengagement movements to maintain high slicing speed, then productivity is improved, but wear and maintenance requirements increase
Solution Approach 1:
The knife drive mechanism dynamically adjusts the engagement and disengagement speeds, allowing rapid movement during slicing (high productivity) while using controlled, slower movements during engagement and disengagement phases (reduced wear). The system transitions between different operational states to optimize both productivity and reliability.
2Loss of time
If the knife executes fast engagement movement to minimize blank cut time, then loss of time is reduced, but force and acceleration increase causing higher loads on the drive unit
Solution Approach 1:
The knife drive operates in periodic cycles, alternating between high-speed slicing phases and controlled engagement/disengagement phases. This periodic variation allows the system to minimize total cycle time (reducing loss of time) while managing peak forces through controlled acceleration and deceleration profiles during transition phases.
3Productivity
If the knife moves quickly through engagement and disengagement, then productivity is improved, but shredding risk increases
Solution Approach 1:
The system changes operational parameters (speed, acceleration, position) at different phases of the slicing cycle. During engagement and disengagement, speed and acceleration are reduced to prevent shredding, while during the actual slicing phase, high speed is maintained for productivity. This dynamic parameter adjustment resolves the contradiction between throughput and product quality.
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 approach reduces wear and tear on the machine components, minimizing the risk of shredding and maintenance needs while maintaining efficient slicing operations.
Implementation Method 1
a disengagement movement with a directional component parallel to gravity, allowing for a gentler operation and minimizing wear on the drive unit
Data Source
AI summary
A slicing machine for slicing foodstuffs includes a feed unit designed to feed at least one product caliber along a feed direction, and a cutting unit designed to cut the at least one product caliber into slices. The cutting unit comprises a knife rotatably drivable about an axis. The cutting unit is designed to carry out a disengagement movement to carry out one or more blank cuts, in which the knife is moved along a direction substantially parallel to the axis from a slicing position to a blank cut position. The cutting unit is designed to perform an engagement movement of the knife from the blank cut position to the slicing position after the one or more blank cuts have been performed, wherein the knife executes a movement about the axis during the engagement movement which corresponds to more than one complete revolution of the knife about the axis.