Rotatable Operative Units for Package Forming Maintenance Access

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Solution Overview

Problem

Existing package forming apparatuses for pourable food products face challenges in improving efficiency and maintenance accessibility, particularly in transitioning between operational and idle configurations.

Innovation Solution

A package forming apparatus with a first and second operative unit, each comprising operative devices and conveyor devices, that are rotatable about a common axis to facilitate manipulation of packaging tubes and allow for easy maintenance by switching between operative and idle configurations, enabling efficient package formation and maintenance access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the package forming apparatus uses a fixed operational configuration to ensure manufacturing precision, then package formation accuracy is maintained, but maintenance accessibility deteriorates

Engineering Contradiction:
Improvepackage formation accuracyVSAvoidmaintenance accessibility
Core Design Contradiction:
Manufacturing precisionVSEase of repair

Solution Approach 1:

The patent implements a rotatable support structure that allows the package forming apparatus to switch between an operational configuration (for accurate package formation) and a maintenance configuration (where the support rotates to provide accessibility to components). This dynamic reconfiguration resolves the contradiction by making the system adaptable to different operational states.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The support structure is divided into separable components that can be independently positioned. The rotatable support allows different sections of the apparatus to be accessed separately during maintenance while maintaining the complete operational configuration during package formation, enabling segmented access without compromising overall precision.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If the package forming apparatus maintains a compact operational structure to reduce space occupation, then footprint is minimized, but maintenance accessibility worsens

Engineering Contradiction:
ImprovefootprintVSAvoidcomponent accessibility
Core Design Contradiction:
Area of stationary objectVSEase of repair

Solution Approach 1:

The rotatable support structure enables the apparatus to maintain a compact footprint during operational phases while dynamically reconfiguring during maintenance phases. The support rotates to extend component accessibility without permanently increasing the occupied space, resolving the contradiction between compactness and accessibility.

Inventive Principle:
Principle #15Dynamics

3Reliability

If the package forming apparatus uses a rigid fixed structure to ensure operational stability, then manufacturing reliability is improved, but adaptability to maintenance needs deteriorates

Engineering Contradiction:
Improveoperational stabilityVSAvoidconfiguration flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent employs a rotatable support that provides rigid stability during package formation operations while enabling adaptive reconfiguration for maintenance activities. The controlled rotation mechanism maintains operational reliability while introducing the flexibility needed for different maintenance scenarios.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rotatable support structure serves multiple functions: it provides stable support during operational phases and enables maintenance access during service phases. This multi-functionality allows a single structure to meet both operational reliability requirements and maintenance adaptability needs.

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

Data Source

PatentEP4474297A1Package forming apparatus and packaging machine for forming packages
Publication Date: 2024.12.11 TETRA LAVAL HOLDINGS & FINANCE SA
  • EP4474297A1 patent drawingFigure 1
  • EP4474297A1 patent drawingFigure 2
  • EP4474297A1 patent drawingFigure 3

AI summary

There is described a package forming apparatus (1) comprising a first operative unit (4) and a second operative unit (4). Each one of the first operative unit (4) and the second operative unit (5) comprises a plurality of respective operative devices (7), each one configured to manipulate in collaboration with another operative device (7) a tube (3) filled with a pourable product for forming the packages (2) and a respective conveyor device (8) configured to advance the respective plurality of operative devices (7) along an advancement path (Q). The first operative unit (4) and the second operative unit (5) are controllable in an operative configuration in which the first operative unit (4) and the second operative unit (5) are configured to manipulate the tube (3) and an idle configuration. At least one of the first operative unit (4) and the second operative unit (5) is angularly movable about a rotation axis (A) for controlling the first operative unit (4) and the second operative unit (5) between the respective operative configuration and the respective idle configuration.