Cardboard Blank Positioning for Tray Deformation Control
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Solution Overview
Problem
Trays formed from cardboard blanks often deform during processing, making precise further processing by thermoforming packaging machines or tray sealers difficult due to format formation processes in between.
Innovation Solution
A device that positions cardboard blanks in a predetermined arrangement before the forming process, ensuring the trays exit in the desired format, eliminating the need for additional format formation and reducing deformation risks during processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If trays undergo intermediate format formation processes after being formed from cardboard blanks, then the trays can be adapted to machine requirements, but the trays deform during processing making precise further processing difficult
Solution Approach 1:
The patent applies preliminary action by positioning the cardboard blanks in the desired format division before the forming process. The blanks are arranged in the final required format on the feeding device before being formed into trays, so that when the trays are subsequently formed, they maintain this pre-established format division. This eliminates the need for intermediate format formation processes that cause deformation, as the format is already correctly established in advance.
2Ease of manufacture
If trays are formed and then undergo intermediate format formation processes, then the trays can be prepared for further processing, but additional processing steps are required increasing complexity
Solution Approach 1:
The patent eliminates intermediate format formation processes by performing the format division on cardboard blanks before forming. The feeding device positions blanks in the desired format, and the forming device then forms trays while maintaining this pre-established arrangement. This integrates format formation and tray forming into a single coordinated process, reducing the number of separate processing steps and overall process complexity.
Solution Approach 2:
The patent merges the format formation process with the tray forming process. Instead of performing format division separately and then forming trays in a subsequent step, the system positions blanks in the final format and forms them into trays in one integrated operation. The feeding device and forming device work together to accomplish both format establishment and tray formation simultaneously, consolidating multiple functions into a unified process.
3Productivity
If trays are formed from cardboard blanks with intermediate format formation, then the trays can be processed in groups, but the trays deform making precise further processing difficult
Solution Approach 1:
The patent applies preliminary action by establishing the format division on cardboard blanks before forming. Multiple blanks are positioned in the desired group format on the feeding device, and when formed into trays, they maintain this pre-established arrangement. This allows batch processing of multiple trays while preserving their relative positions and format division, eliminating deformation issues that would otherwise occur during intermediate handling.
Data Source
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AI summary
The invention relates to a device (10) configured to produce trays (T) from a plurality of cardboard blanks (K) provided as a group (G) in a predetermined arrangement (A, A') by means of a forming process, wherein the device (10) is configured to position the cardboard blanks (K) within the group (G) according to the predetermined arrangement (A, A') such that the cardboard blanks (K) provided within the group (G) for the forming process already have a format division (F) relative to each other before the forming process, corresponding to a format (F') of trays (T) produced from the respective cardboard blanks (K) by the forming process. The invention also relates to a corresponding method.