Adjustable Folder Means for Multi-Height Film Wrapping
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Solution Overview
Problem
Existing cellophane wrapping machines are limited to wrapping articles of the same height and are not versatile enough to handle articles of different shapes and heights, requiring frequent adjustments and demounting of components to accommodate varying dimensions.
Innovation Solution
A wrapping machine with a tunnel-conformed frame and adjustable folder means that allows articles of different dimensions and heights to be wrapped using a single configuration, along with air cushion creation and photo-detecting means for precise handling and protection, enabling the use of various film types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fixed folder organs are arranged at a predetermined height corresponding to article height, then articles of the same height can be wrapped efficiently, but the machine cannot handle articles of different heights without demounting and remounting operations
Solution Approach 1:
The folder means are made movable and adjustable in height relative to the conveyor belt, allowing dynamic repositioning to accommodate articles of different heights. This eliminates the need for demounting and remounting operations while maintaining wrapping efficiency for various article dimensions.
Solution Approach 2:
The folder means are designed to perform multiple functions by being adjustable to different heights, enabling the same component to wrap articles of varying heights without requiring separate fixed folder organs for each height category.
2Manufacturing precision
If the machine is configured for a specific article height, then wrapping precision is maintained, but the machine lacks versatility to handle articles of different shapes and heights
Solution Approach 1:
The folder means can be dynamically adjusted to different positions and heights, allowing the machine to adapt to various article shapes and dimensions while maintaining precise wrapping through controlled folder positioning rather than fixed configuration.
3Reliability
If conventional wrapping machines are used, then same-height articles can be wrapped consistently, but frequent adjustments and component changes are required for different article dimensions
Solution Approach 1:
The movable and adjustable folder means allow operators to easily reposition components for different article heights without demounting, maintaining consistent wrapping quality while significantly reducing operational complexity and setup time.
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
Enables efficient wrapping of articles with different dimensions and heights without the need for component adjustments, ensuring secure packaging and preventing damage through precise handling and friction reduction.
Implementation Method 1
retaining the cellophane by aspiration, moving both the cellophane and the articles arranged thereon at the same time in a transport direction
Implementation Method 2
welding and cutting means which are located at an interruption of the conveyor belt and which are activatable to clamp the tube of cellophane and perform the heat-welding
Data Source
AI summary
A machine for wrapping a film to form packs containing single articles includes a conveyor transporting the articles, an aspirated conveyor belt arranged consecutively to the conveyor, a supply station feeding a film and arranging the film with a central part resting on the conveyor belt and with lateral parts projecting from the belt, a frame associated with the conveyor belt and tunnel-conformed for passage of the articles, and folder means for abutting the projecting lateral parts of the film and winding the parts about the tunnel-conformed frame to form a tube of film about the tunnel-conformed frame. A glue device applies glue on one of the two flaps of the film and heat welding and cutting means are activatable for clamping the tube of film and heat-welding and cutting the film to obtain an envelope containing the article.