Modular Link Belt With Engagement Spikes for Stable Meat Cutting

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Solution Overview

Problem

Existing positioning machines for cutting meat into portions face challenges in stably holding the meat during cutting, particularly with the front of the meat moving sideways, and are difficult to clean in a food-safe manner.

Innovation Solution

A modular link belt with transverse pins and links, including engagement links with rustproof steel spikes that engage into the meat for stable holding, combined with an upper guide belt and a rapier for enhanced stability and cleanliness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a rapier is used to push the product forwards, then the product is conveyed to the cutting blade, but the front of the product can still move sideways during cutting

Engineering Contradiction:
Improveproduct conveyanceVSAvoidproduct positioning stability
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The link belt incorporates specific links with protruding engagement elements (claws, hooks, or plates) at localized positions to engage with the product. These engagement elements are strategically positioned to grip the product surface, preventing sideways movement during cutting while allowing forward conveyance. This localized engagement solution addresses the positioning stability issue without requiring complete redesign of the entire conveyor system.

Inventive Principle:
Principle #3Local quality

2Manufacturing precision

If an upper guide belt is used to press on the product, then cutting accuracy is improved, but the system complexity increases

Engineering Contradiction:
Improvecutting accuracyVSAvoidconveyor system structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The guide belt function is merged with the existing link belt structure. Instead of adding a separate upper guide belt system, the link belt itself is designed with engagement elements that perform both conveyance and guiding functions. The alternating arrangement of engagement elements on adjacent sides of links provides lateral guidance while maintaining the simplicity of a single belt structure, thus improving cutting accuracy without significantly increasing system complexity.

Inventive Principle:
Principle #5Merging (Combining)

3Manufacturing precision

If hooks are used to hold the product on the link belt, then product stability is improved, but cleaning becomes difficult

Engineering Contradiction:
Improveproduct holding stabilityVSAvoidcleanability
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The engagement elements are designed with smooth, continuous surfaces without crevices or hard-to-reach areas where debris can accumulate. The engagement elements (claws, hooks, or plates) have streamlined geometries that allow cleaning fluids to flow over them easily, and surfaces that can be effectively wiped or sprayed. This design maintains product holding stability while ensuring the link belt remains cleanable for food-safe applications.

Inventive Principle:
Principle #32Color changes

4Manufacturing precision

If releasably fastenable accessories are added to the link belt, then product holding capability is improved, but cleaning accessibility is reduced

Engineering Contradiction:
Improveproduct holding capabilityVSAvoidcleaning accessibility
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The link belt is designed as a modular system where engagement elements are integrated into individual links that can be independently attached or removed from the transverse pins. This segmentation allows for easy replacement of engagement elements if they become worn or contaminated beyond cleaning. The modular design maintains product holding capability while improving maintenance and cleaning accessibility compared to permanently fixed accessories.

Inventive Principle:
Principle #1Segmentation

5Ease of operation

If upright plates are used to push the product forwards, then product conveyance is achieved, but the product position in conveying direction is fixed which is not suitable for all product dimensions

Engineering Contradiction:
Improveproduct push functionVSAvoidproduct dimension compatibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The engagement elements on the link belt are designed to be flexible in their engagement with the product. Rather than fixed upright plates at specific positions, the link belt can engage products at various positions along its length depending on product dimensions. The alternating arrangement of engagement elements on adjacent sides allows the belt to adapt to different product widths and shapes, providing versatile conveyance for various product dimensions while maintaining the push function.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4461674B1Positioning machine
Publication Date: 2025.09.03 MARELEC FOOD TECH
  • EP4461674B1 patent drawingFigure 1~2
  • EP4461674B1 patent drawingFigure 3
  • EP4461674B1 patent drawingFigure 4~5

AI summary

The present invention relates to a modular link belt (2) for positioning machines (1) for conveying products in a conveying direction (T), comprising: - transverse pins (5) which extend virtually parallel to each other transversely with respect to the conveying direction (T); - links (7, 8), each comprising a bearing surface (11) and attachment bodies (9); wherein attachment bodies (9) are arranged alternatingly on adjacent sides of these links (7, 8) and a transverse pin (5) is fastened through these alternatingly arranged links (7, 8) in order to incorporate the links (7, 8) in the link belt (2) and wherein the links (7, 8) comprise engagement links (7) which comprise one or more engagement spikes (12) which project with respect to the bearing surface (11) in order to engage into the products.