Stepwise Product Offset for Slicing Alignment

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

In multi-lane slicing operations, aligning the beginnings of food products relative to the cutting plane precisely is challenging due to variations in product length, leading to potential misalignment and compression, especially with fresh products like meat.

Innovation Solution

A method and device that offset products stepwise relative to each other and use lateral light barriers to detect and adjust their positions accurately before cutting, ensuring precise alignment with the cutting plane.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If product conveyors are retracted before the first cut to compensate for length differences, then product compression is reduced, but misalignment of product beginnings relative to the cutting plane occurs

Engineering Contradiction:
Improveproduct compressionVSAvoidalignment precision
Core Design Contradiction:
Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The system performs a preliminary product search run to detect the actual positions of product beginnings using photoelectric sensors before the cutting operation. Based on these detections, the control device calculates and applies individual offset values to each product conveyor, pre-positioning the products to compensate for length variations. This preliminary detection and adjustment eliminates both compression and misalignment issues during the actual cutting process.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If product conveyors are independently movable to compensate for length differences, then adaptability to varying product lengths is improved, but device complexity increases

Engineering Contradiction:
Improveadaptability to product length variationsVSAvoidconveyor control complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system employs photoelectric sensors to continuously detect the actual positions of product beginnings on each conveyor lane. These detection signals are fed back to the control device, which automatically calculates the required offset for each conveyor and adjusts their speeds accordingly. This closed-loop feedback mechanism enables the system to adapt to varying product lengths without requiring complex manual adjustments or overly sophisticated conveyor mechanisms.

Inventive Principle:
Principle #23Feedback

3Manufacturing precision

If a product search run is performed to detect product positions, then alignment accuracy is improved, but processing time is increased

Engineering Contradiction:
Improveproduct position detection accuracyVSAvoidsearch and engagement time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The photoelectric sensors are positioned to detect product beginnings during the normal feeding process rather than requiring a separate search run that stops production. The system continuously monitors product positions as they move along the conveyors, allowing detection and adjustment to occur seamlessly during ongoing operation. This eliminates dedicated search time while maintaining alignment accuracy through real-time detection and automatic conveyor adjustment.

Inventive Principle:
Principle #20Continuity of useful action

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

Ensures precise alignment of product beginnings with the cutting plane, minimizing misalignment and compression, even with varying product lengths, thereby maintaining consistent cutting performance.

Implementation Method 1

each product lane, along which a product is guided, is assigned a photoelectric sensor arranged at a defined distance to the cutting plane, whose detection range extends transversely to the product feed direction

Methodology Applied
Scientific EffectPhotoelectric detection: Photoelectric Effect

Data Source

PatentEP2808136B1Method and device for cutting products
Publication Date: 2020.02.12 WEBER FOOD TECHNOLOGY SE & CO KG
  • EP2808136B1 patent drawingFigure 1~2
  • EP2808136B1 patent drawingFigure 3

AI summary

In a method for slicing products (12), particularly food products, several products (12) are fed side by side along a product support (14) to a cutting plane (16) in which a cutting blade moves, in particular rotating and/or circumferentially. The products (12) are initially offset relative to each other in a step-like manner in the product feed direction (Z) via product conveyors (22). Starting from a first product (121), the products (121-12n) arranged next to it on at least one side are each offset by an amount (x) further back in the opposite direction of the product feed direction than the preceding product, up to the respective outermost product (12n). The products (12), offset relative to each other in a step-like manner, are moved at a defined speed towards light barriers (38, 40). The positions of the product beginnings (36) with respect to the cutting plane (16) are detected by the light barriers (38, 40).