Multi-Width Cardboard Strip Joining for Low-Waste Packaging
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Solution Overview
Problem
Existing packaging machines using continuous cardboard strips stored in reels or fan-folds are expensive, require significant space, and result in excessive material waste due to multiple cutting operations to adapt to varying article dimensions and shapes.
Innovation Solution
An apparatus that consecutively joins multiple cardboard sheets of different widths to form two continuous strips, allowing for on-demand cutting of sheets with appropriate dimensions for packaging, reducing material waste and operational costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous cardboard strips are stored in reels or fan-folds for packaging machines, then the packaging operation can be performed, but the cost is particularly expensive and the space requirement is very voluminous
Solution Approach 1:
The invention segments the continuous cardboard strip supply into individual cardboard sheets stored in stacks. Instead of using one large continuous strip from a reel, the system uses multiple separate sheets that are joined on-demand, reducing the space and cost associated with storing large quantities of continuous material.
Solution Approach 2:
Cardboard sheets are pre-cut to various widths and stored in stacks before being needed. This preliminary preparation allows the system to have ready-to-use sheets of different widths without requiring large reels of continuous material, thus reducing space and cost while ensuring packaging operation continuity.
2Reliability
If continuous cardboard strips are used for packaging, then packaging can be performed, but significant manoeuvring space is required for extracting and directing the strips
Solution Approach 1:
The system divides the continuous strip into separate sheets stored in vertical stacks, eliminating the need for horizontal manoeuvring space required by reels. The sheets are fed vertically from stacks and joined in place, significantly reducing the space needed for material handling.
Solution Approach 2:
The invention transitions from horizontal storage (reels requiring radial space) to vertical storage (stacks utilizing vertical space). This dimensional change allows the system to store and feed cardboard material without requiring significant horizontal manoeuvring space, as sheets are fed from the top of vertical stacks.
3Productivity
If cardboard sheets of same width are joined to form continuous strip, then continuous strip can be produced, but significant material waste occurs due to multiple cutting operations to adapt to varying article dimensions
Solution Approach 1:
The system uses cardboard sheets with different widths (local variations) instead of uniform-width sheets. Each sheet width is optimized for specific article dimensions, reducing the need for cutting operations and minimizing material waste while maintaining continuous production capability.
Solution Approach 2:
The invention changes the parameter of sheet width to match article dimensions. By having stacks of sheets in different widths and selecting the appropriate width for each packaging task, the system eliminates the need for extensive cutting operations, thus reducing material waste while maintaining productivity.
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
Reduces material waste and operational costs by providing continuous cardboard strips of varying widths tailored to article dimensions, minimizing unnecessary cutting and optimizing material usage.
Implementation Method 1
a joining device, arranged and configured so as to join the cardboard sheets to one another
Data Source
AI summary
The apparatus for realising at least two continuous cardboard strips for packaging having different width by consecutively joining to one another at least two respective pluralities of cardboard sheets for packaging of different width, comprises: a first store, for containing a first stack of a first plurality of cardboard sheets each having a first width; a second store, for containing a second stack of a second plurality of cardboard sheets each having a second width, wherein the second store is arranged upstream of the first store and at a raised height with respect to the first store. The apparatus further comprises a first operating station, which is arranged above the first store and which is designed to reciprocally join the sheets of the first stack and realise a first continuous cardboard strip having a first width, and a second operating station which is arranged above the second store, and which is designed to reciprocally join the sheets of the second stack and realise a second continuous cardboard strip having a second width.