Double Wrapping System for Palletized Loads

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Solution Overview

Problem

The existing methods for wrapping palletized loads, particularly demi-pallets, are inefficient and costly due to the need for auxiliary pallets, complex wrapping systems, and high maintenance costs, which increase transportation expenses and require additional equipment for handling.

Innovation Solution

A system with two rotating platforms and a single movement machine that allows for sequential wrapping of demi-pallets individually and then together in a double wrapping configuration, using a single stabilizing wrap to secure them side by side, eliminating the need for auxiliary pallets and simplifying the process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional forklift trucks are used to lift demi-pallets, then the lifting operation can be performed, but the operation becomes awkward and dangerous due to only one fork being inserted

Engineering Contradiction:

Improveease of lifting operationVSAvoidsafety of lifting operation

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

Two demi-pallets are merged together by wrapping them simultaneously with a single plastic film on the second rotating platform, creating a stable combined unit that can be safely handled as one load

Inventive Principle:

Principle #5Merging (Combining)

2Stability of the object's composition

If auxiliary pallets are used to transport demi-pallets, then the demi-pallets can be transported stably, but the transportation costs increase significantly

Engineering Contradiction:

Improvestability during transportVSAvoidtransportation cost

Core Design Contradiction:

Stability of the object's compositionVSQuantity of substance

Solution Approach 1:

Two demi-pallets are merged into a single stable unit through simultaneous wrapping with plastic film, eliminating the need for auxiliary pallets and reducing transportation costs

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

Plastic film is used as a flexible wrapping material to stabilize and combine demi-pallets, replacing the need for rigid auxiliary pallets and reducing material costs

Inventive Principle:

Principle #30Flexible shells and thin films

3Stability of the object's composition

If two consecutive wrapping stations are used to wrap two palletised loads side by side, then the demi-pallets can be stabilised without auxiliary pallets, but the system complexity and costs increase

Engineering Contradiction:

Improvestability of demi-palletsVSAvoidcomplexity of wrapping system

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

Two rotating platforms are merged into a coordinated system where the second platform performs dual function: individual wrapping and simultaneous double wrapping, eliminating the need for separate wrapping stations

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The second rotating platform is designed with multi-functionality to both wrap individual demi-pallets and wrap two demi-pallets simultaneously, making the system more versatile and cost-effective

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Device complexity

If a single rotating platform is used for sequential wrapping, then the system is simpler, but the production output is greatly limited by lengthy down times

Engineering Contradiction:

Improvesimplicity of wrapping systemVSAvoidproduction output

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The system maintains continuous productive action by having the first rotating platform continuously wrap individual demi-pallets while the second platform prepares for double wrapping, eliminating idle down time

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

Demi-pallets are individually wrapped in advance on the first rotating platform before being positioned for double wrapping on the second platform, preparing them for the final stabilizing operation

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP2150465B1Process and system for wrapping palletised loads

Publication Date: 2011.03.02 BEMA

Figure 1~2
Figure 3~4
Figure 5~6

AI summary

The process for wrapping palletised loads comprises the following phases: Placing a first palletised load (4) on top of a first rotating platform (2); wrapping the first palletised load placed on top of the first rotating platform with a first stabilising wrap; moving the first palletised load away from the first rotating platform; placing a second palletised load (5) on top of the first rotating platform; wrapping the second palletised load placed on top of the first rotating platform with the first stabilising wrap; moving the "second palletised load away from the first rotating platform; positioning the first and second palletised loads (4, 5) in a double wrapping configuration where the first and second palletised loads are substantially side by side and together on top of a second rotating platform (3); wrapping together the first and second palletised loads in the double wrapping configuration with the second stabilising wrap.