Contour Punching Device for Label Waste Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Contour punching of sheet-like material for labels often results in significant printed waste, which is costly and difficult to dispose of or recycle, due to the need for the punching tool to penetrate printed regions, leading to unprinted edges on the final product.
Innovation Solution
A method involving two contour punching blades, where the first blade penetrates only the unprinted region to generate waste free of printed areas, and the second blade cuts through the printed region to minimize secondary waste, with separate collection of each type of waste for efficient disposal or recycling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the contour punching blade penetrates the printed region to avoid unprinted edges on the label, then the quality of the punched-out label is improved, but the quantity of printed punching waste increases
Solution Approach 1:
The punching process is divided into two separate stages: first punching (removing unprinted regions) and second punching (cutting the final label contour). This segmentation allows each punching stage to have a specialized blade contour optimized for its specific function, thereby reducing overall printed waste while maintaining label quality.
Solution Approach 2:
The first punching operation is performed as a preliminary step before the final contour punching. By预先 removing the unprinted regions in the first punching, the second punching blade only needs to cut through the printed region, minimizing printed waste generation while ensuring the label has no unprinted edges.
2Device complexity
If a single contour punching blade is used, then the device complexity is reduced, but the quantity of printed waste increases
Solution Approach 1:
The single punching blade is divided into two separate blades with different contours: a first contour punching blade for removing unprinted regions and a second contour punching blade for cutting the final label shape. This segmentation enables each blade to be optimized for its specific function, reducing printed waste despite the increased number of components.
Solution Approach 2:
Each punching blade is given a locally optimized contour suited to its specific function. The first blade has a contour designed for removing unprinted areas, while the second blade has a contour matching the final label shape. This local optimization of blade contours minimizes printed waste generation.
Data Source
AI summary
A method for contour punching an output stack consisting of sheet-like material and a punching device for carrying out the method Includes providing at least two punching procedures. A large proportion of an unprinted region is separated from a printed region in a first punching procedure and a first punching waste produced thereby is collected separately, whereby the quantity of the second punching waste which is formed in a second punching procedure is significantly less than if only a single punching procedure were to be carried out. By collecting the first punching waste and the second punching waste separately, it is possible to provide this waste in each case for appropriate disposal or appropriate recycling.