Tilting Guiding Roller Film Width Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing unwinding apparatuses for wrapping machines are complex and expensive, and they struggle to effectively and simply vary the band width of the plastic film during wrapping around a load.
Innovation Solution
An unwinding apparatus with a guiding roller that can be tilted to reduce the band width of the film and deviate it towards the load, allowing for easy adjustment of the film width during wrapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lifting means are inserted to wrap film around the upper portion of the pallet, then the load can be stabilized, but the device complexity and cost increase
Solution Approach 1:
The invention extracts the film narrowing function from the complex lifting means and implements it through a simple guiding roller that can be tilted. This allows the film to be narrowed and directed toward the upper portion of the pallet without requiring additional lifting mechanisms, thereby maintaining load stabilization capability while reducing device complexity and cost.
Solution Approach 2:
The guiding roller acts as an intermediary element between the film and the load. By tilting the guiding roller, the film is naturally directed toward the upper portion of the pallet, achieving the stabilization effect without direct mechanical intervention from complex lifting means.
2Strength
If the band width of the film is reduced to create a rope, then the wrapping force increases, but the ease of operation decreases
Solution Approach 1:
The guiding roller is designed to be tiltable, allowing dynamic adjustment of the film band width. The roller can be tilted to the required angle to achieve the desired narrowing effect and create a rope structure for greater wrapping force, while maintaining operational simplicity through a single adjustable component rather than complex mechanisms.
3Adaptability or versatility
If complex unwinding devices are mounted on rotating arms or rings, then the film can be directed towards the upper portion of the pallet, but the device complexity and cost increase
Solution Approach 1:
The guiding roller serves multiple functions: it guides the film, narrows the band width, directs the film toward the upper portion of the pallet, and creates a rope structure. This single multi-functional component replaces what would otherwise require multiple separate complex devices mounted on rotating arms or rings, thereby maintaining adaptability while reducing overall device complexity.
Data Source
AI summary
An unwinding apparatus (1) for wrapping machine (100) to wrap with a film (50) a load (30) on a pallet (40), comprising supporting means (2) for supporting a reel (60) of film (50), roller means (3, 4, 7) for unwinding and pre-stretching the film (50) and a guiding roller (6) that can be tilted for reducing a band width of the film (50) and/or deviating it towards the; first driving means (10) for continuously tilting the guiding roller (6) in a plurality of operating positions (P0, P1, P2) along an adjustment stroke; the guiding roller (6) comprises a first end portion (16) rotatably connected to the supporting means (2) and provided with a roll (8) able to roll up a longitudinal lower edge (50a) of the film (50) when the guiding roller (6) is tilted to form a longitudinal rolled portion (51).