Extensible Paper Tape Wrapping Irregular Loads
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Solution Overview
Problem
Existing methods for wrapping objects on a pallet using paper tapes are unsuitable due to the irregular shape of the objects and the lack of sufficient tension, leading to frequent breaks in the tape, making it impractical for use with traditional wrapping machines.
Innovation Solution
The use of non-creped extensible paper with a minimum degree of extensibility of 6% in both longitudinal and transverse directions, which can be adapted to irregular shapes and maintained under controlled tension during wrapping, allowing for effective adherence and stabilization of objects on a pallet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If crepe paper tape is used for wrapping, then environmental friendliness is improved, but the tape breaks frequently due to inability to stretch in transverse direction
Solution Approach 1:
The patent changes the physical parameters of the paper tape by treating it to create extensibility in the transverse direction. This allows the tape to stretch and adapt to irregularly shaped loads, preventing breakage while maintaining the environmental benefits of using paper instead of plastic materials.
Solution Approach 2:
The patent creates a composite structure by combining paper fibers with extensible components or treatments that enable transverse stretching. This composite approach maintains the ecological advantages of paper while adding the necessary mechanical properties to prevent tape breakage during wrapping operations.
2Object-affected harmful factors
If paper tape is used instead of polymeric film, then environmental sustainability is improved, but the tape cannot accommodate irregular shapes causing frequent breaks
Solution Approach 1:
The patent modifies the physical parameters of paper tape by introducing extensibility in the transverse direction through chemical or physical treatments. This enables the tape to stretch and conform to irregularly shaped objects, maintaining both environmental sustainability and adaptability to various load configurations.
Solution Approach 2:
The patent transforms the rigid paper tape into a flexible wrapping material that can bend and stretch around irregular shapes. By treating the paper to create extensibility, the tape becomes adaptable to complex geometries while retaining the environmental benefits of using paper-based materials.
3Device complexity
If traditional wrapping machines are used with paper tape, then machine compatibility is improved, but the tape breaks due to insufficient tension control
Solution Approach 1:
The patent changes the mechanical parameters of the paper tape by enhancing its extensibility, which allows it to withstand the tension applied by traditional wrapping machines without breaking. The treated paper can now accommodate the tension forces while maintaining reliability in conventional wrapping equipment.
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
This method enables the successful wrapping of irregularly shaped objects on a pallet using extensible paper, providing a strong, customizable, and environmentally friendly packaging solution that can be used with traditional wrapping machines with minimal modifications.
Implementation Method 1
a minimum degree of extensibility of 6% in both longitudinal and transverse directions, which can be adapted to irregular shapes
Data Source
AI summary
Method of grouping a plurality of objects to be handled includes positioning the objects on a support surface and wrapping the objects and support surface with a tape of non-creped paper material. The tape having an extensibility of at least 6% in the longitudinal direction and 6% in the transverse direction and is maintained before or during the winding of the tape in a state of tension which causes it to extend to a lesser extent than its maximum extensibility.