Paper Strap Guiding Mechanism for Clip-Based Strapping

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Solution Overview

Problem

Existing strapping machines using plastic materials face environmental impact issues and operational challenges with flexible, non-weldable materials like paper straps, which are difficult to manage due to their tendency to pile up and form clouds, making them hard to guide and compact.

Innovation Solution

An innovative strapping machine design featuring movable grasping pliers and support elements, such as rollers, that guide and tension paper straps by pulling them along a winding path, allowing for the use of non-weldable materials by applying clips to secure the ends, and a controller to synchronize the movement of support elements and pulleys for efficient strapping.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If plastic straps are used in traditional strapping machines, then the straps can be easily guided through conduits and tensioned, but the environmental impact is negative and disposal costs increase

Engineering Contradiction:
Improveenvironmental impactVSAvoidease of guiding and tensioning
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent changes the material parameter of the strap from plastic to paper, transforming the environmental characteristics while maintaining the functional requirements through adapted guiding mechanisms

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces support rollers as intermediary elements that facilitate the guidance and tensioning of paper straps, mediating between the strap material and the strapping machine to overcome the flexibility challenges of paper

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If paper straps are used instead of plastic, then environmental impact is reduced, but the straps tend to pile up and form clouds making them difficult to guide

Engineering Contradiction:
Improveenvironmental impactVSAvoidcomplexity of guiding mechanism
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

Support rollers are introduced as intermediary elements that facilitate the guidance and tensioning of paper straps, mediating between the strap material and the strapping machine to overcome the flexibility challenges of paper

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The guiding mechanism is made dynamic with movable support rollers that can be positioned along the winding path to adapt to the specific guidance needs of the paper strap at different stages of the strapping process

Inventive Principle:
Principle #15Dynamics

3Object-affected harmful factors

If paper straps are used, then eco-friendly strapping is achieved, but the straps lack the rigidity to maintain tension without support elements

Engineering Contradiction:
Improveenvironmental impactVSAvoidtension maintenance capability
Core Design Contradiction:
Object-affected harmful factorsVSStrength

Solution Approach 1:

Support rollers serve as intermediary elements that provide temporary support to the flexible paper strap during the strapping process, enabling the strap to maintain its position and tension until the joining operation is complete

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The support rollers are temporarily introduced during the strapping process and then discarded (removed) after they have served their purpose, allowing the strap to maintain tension independently once the support is withdrawn

Inventive Principle:
Principle #34Discarding and recovering

Data Source

PatentEP4656537A1Machinery for strapping with a strap of paper material and use of a relative strap of paper material
Publication Date: 2025.12.03 ECOWRAP SRL
  • EP4656537A1 patent drawingFigure 1~2
  • EP4656537A1 patent drawingFigure 3~4
  • EP4656537A1 patent drawingFigure 5~6

AI summary

The invention consists of a specific machinery capable of strapping objects through the use of a strap of paper material and specific clip.