Box Blank Production via Segmented Joining and Dynamic Cutting
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Solution Overview
Problem
Existing machines and methods for making box blanks result in production waste due to the need for continuous sheets of specific sizes, leading to inefficiencies and increased stock requirements.
Innovation Solution
A machine and method that produce rectangular pieces with a predetermined width and adjustable length, allowing for the creation of intermediate blanks through joining and cutting, which can be further processed to minimize waste and optimize sheet usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If continuous sheets of specific sizes are used to make box blanks, then the box blanks can be produced with precise dimensions, but production waste increases due to the need for exact sheet sizes
Solution Approach 1:
The continuous sheet is divided into multiple rectangular pieces along its length, each piece being further processed into box blanks. This segmentation allows flexible utilization of the sheet material and reduces waste by optimizing the cutting pattern to match the required blank dimensions.
Solution Approach 2:
The cutting system is made adjustable and dynamic, allowing the cutting positions and patterns to be modified based on the required box blank dimensions. This enables optimal utilization of continuous sheets for different product specifications, minimizing waste without compromising precision.
2Adaptability or versatility
If multiple sizes of continuous sheets are stored to accommodate different box dimensions, then various box sizes can be produced, but the complexity of the storage system and stock management increases
Solution Approach 1:
A single continuous sheet storage system is designed to serve multiple purposes by producing blanks for different box sizes through adjustable cutting and processing parameters. This universal system eliminates the need for multiple dedicated storage areas for different sheet sizes, reducing overall complexity.
Solution Approach 2:
The processing parameters (cutting lengths, joining configurations) are made variable to adapt to different box size requirements from a single continuous sheet stock. This parameter flexibility allows one storage system to support diverse product specifications without requiring multiple specialized storage solutions.
3Manufacturing precision
If cuts are performed on continuous sheets to match exact box dimensions, then precise box blanks are obtained, but material waste increases
Solution Approach 1:
Instead of only cutting along the length of the continuous sheet, the system utilizes both length and width dimensions optimally by joining rectangular pieces along their first edges. This two-dimensional optimization allows better material utilization while maintaining precise blank dimensions.
Solution Approach 2:
Rectangular pieces are preliminarily cut from the continuous sheet with standard dimensions, then subsequently joined and cut to final specifications. This preliminary processing allows optimal nesting and arrangement of pieces to minimize waste while ensuring final dimensional precision.
Data Source
AI summary
A machine (1) for making blanks (2) for boxes to measure, comprises feed means configured for realizing rectangular pieces (3) of the blank (2). Each rectangular piece (3) has a width (“La”), measured along a first edge (3a) thereof, which width (“La”) is equal to a pre-determined width (“La”) of the blank (2) and a length (“Lu”), measured along a second edge (3b) of said rectangular piece, said length (“Lu”) being preferably less than a pre-determined length (“Lu”) of the blank (2). Joining means (32) are configured for joining at least two rectangular pieces (3) or one rectangular piece (3) and a piece of an intermediate blank previously made, relative to respective first edges (3a), so as to obtain a blank exhibiting an intermediate width (“La”), which intermediate width (“La”) is equal to the pre-determined width (“La”) of the blank (2), and a length which is greater than the pre-determined length (“Lu”) of the blank (2). Cutting means (40) are configured for cutting the intermediate blank parallel to the first edges in order to obtain the blank (2).