Sensing Device for Automatic Casing Dimension Detection in Tubular Filling

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Solution Overview

Problem

Existing filling devices for shirred, tubular casings require manual input of casing dimensions, leading to errors and increased manual effort, and have limited monitoring capabilities, resulting in potential production stops and faulty sausages.

Innovation Solution

Incorporation of a sensing device with displacement or linear sensors to determine the position of the driver ring and push-on device, allowing for automatic determination of casing dimensions and optimization of the filling process, reducing errors and increasing production reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If manual input of casing dimensions is used, then device complexity is reduced, but manufacturing precision and reliability deteriorate due to potential errors

Engineering Contradiction:
Improvedevice complexityVSAvoidcasing dimension accuracy
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The patent replaces manual mechanical input with an optical sensing system. Sensors detect the position of the drive ring and sliding device automatically, eliminating the need for manual dimension entry and associated errors while maintaining relatively simple device architecture.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The sensing device enables the system to automatically determine casing dimensions without external manual input. The drive ring's position and movement automatically provide the information needed for precise casing dimension determination, making the system self-measuring.

Inventive Principle:
Principle #25Self-service

2Ease of operation

If manual input of casing dimensions is used, then ease of operation is improved, but productivity deteriorates due to production stoppages

Engineering Contradiction:
Improveease of operationVSAvoidproduction quantity
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The sensing device provides real-time feedback on casing position and dimensions. This immediate detection of casing faults (insufficient positioning, kinks, defects) allows for instantaneous corrective action, preventing production stoppages while maintaining operational simplicity.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The sensing device acts as an intermediary between the mechanical filling process and the control system. It translates physical casing position into detectable signals, enabling automated monitoring without complicating the operational interface.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If monitoring capabilities are limited, then device complexity is reduced, but reliability deteriorates due to undetected faults

Engineering Contradiction:
Improvemonitoring system complexityVSAvoidproduction process reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent employs optical sensors to detect casing position and faults, replacing complex mechanical monitoring mechanisms. This provides reliable detection of insufficient positioning, kinks, and defects while keeping the monitoring system relatively simple.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP3449727B1Device for filling tubular casings and related method
Publication Date: 2021.04.21 VEMAG MASCHINENBAU GMBH
  • EP3449727B1 patent drawingFigure 1
  • EP3449727B1 patent drawingFigure 2~3
  • EP3449727B1 patent drawingFigure 4

AI summary

Filling device (6) and method for filling gathered, tubular sleeves (16) with a filling tube (20, 20') onto which a gathered, tubular sleeve (16) can be slid, a movable receiving part (38) receiving a first end of the filling tube (20, 20') which is configured to move the filling tube (20, 20') into a loading position in which the sleeve (16) can be placed onto the filling tube (20, 20') and into a filling position in which the sleeve (16) can be filled, a sliding device (40) movable axially to the longitudinal axis (20, 20') of the filling tube for sliding the sleeve (16) onto the filling tube (20, 20') in the loading position, and an axially movable drive ring arranged on the filling tube (20, 20'). (18) and a sensing device (49) for determining the position of the drive ring (22) and/or the slide-on device (40).