Multi-Lane Web Material Unwind Drive for Slicing Precision

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Solution Overview

Problem

Existing interleavers and underleavers in high-speed slicers for food products are not adequately powerful for multi-lane slicing and lane-specific operations, failing to meet the increased demands for efficiency and precision.

Innovation Solution

A device providing web-shaped intermediate sheet material with rotatably mounted material rolls and friction drive unwind systems for each lane, allowing continuous, track-specific handling and optimal adjustment to the cutting operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single material roll is used for multi-lane slicing, then device complexity is reduced, but lane-specific operation capability deteriorates

Engineering Contradiction:
Improvestructure complexityVSAvoidlane-specific operation capability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent divides the material supply system into separate material rolls for each lane, allowing independent control and lane-specific operation. Each lane has its own material roll and unwind drive, enabling tailored material handling for different slicing requirements without increasing overall system complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamically adjustable unwind drives for each material roll, allowing the web feed rate to be independently controlled for each lane. This dynamic adjustment capability enables optimal adaptation to different slicing speeds and material requirements while maintaining a relatively simple overall device structure.

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If material rolls are rotatably mounted with friction drive unwind systems, then continuous handling precision is improved, but device complexity increases

Engineering Contradiction:
Improvematerial feed precisionVSAvoidunwind system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The friction drive unwind system utilizes the friction between the drive roller and material web to automatically control web unwinding without complex mechanical engagement mechanisms. The system self-regulates through friction contact, providing precise continuous material feeding while maintaining relatively simple device structure through the self-service nature of friction-based drive.

Inventive Principle:
Principle #25Self-service

3Productivity

If lane-specific material handling is implemented, then slicing efficiency is improved, but device complexity increases

Engineering Contradiction:
Improveslicing efficiencyVSAvoidmaterial handling system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The material handling system is segmented into independent lane-specific units, each with its own material roll and unwind drive. This segmentation enables parallel operation across multiple lanes, significantly improving slicing efficiency while the modular nature of the segmented system prevents excessive complexity increase through standardized components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The unwind drives are designed with multi-functionality to handle different material types and feeding requirements across various lanes. This universal design approach allows a single lane-specific unit to serve multiple purposes and configurations, improving slicing efficiency across different applications while avoiding the need for entirely separate systems for each lane, thus controlling complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables efficient lane-specific operation and continuous handling of material webs, improving the precision and efficiency of multi-lane slicing by matching material handling to individual lane requirements.

Implementation Method 1

The unwind drive (21) is in frictional engagement with the roll of material (17) or with the wound-up web of material (19) in an active state

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3424854B1Provision of web-shaped sheet material to a cutting area
Publication Date: 2021.05.19 WEBER FOOD TECHNOLOGY SE & CO KG
  • EP3424854B1 patent drawingFigure 1
  • EP3424854B1 patent drawingFigure 2~4
  • EP3424854B1 patent drawingFigure 3

AI summary

The invention relates to a device for the multi-lane (S1, S2, S3, S4) provision of web-shaped interlayer material at a cutting area (85), in which multi-lane fed products (11) are simultaneously cut into slices (13) and interlayers (15) are introduced, which are separated from the provided interlayer material (19) in the cutting area (85), with a material supply which comprises a rotatably mounted material roll (17) for each lane (S1, S2, S3, S4), and with a take-up device (21, 23) which is designed for lane-specific unwinding of the material webs (19) from the material rolls (17).