Nested Flat Presser for Scrap Stabilization
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Solution Overview
Problem
Existing blanking tools face challenges in efficiently supporting and stabilizing scrap material during the blanking operation due to limitations in presser design, including space constraints, difficulty in customization, and interference with machine components, leading to inefficiencies in processing speed and storage.
Innovation Solution
A flat presser with coaxially oriented, concentric wall sections that are collapsible and biased by a conical spring, allowing for easy surface mounting and customizable arrangement on the support board, providing consistent pressure and minimizing protrusion above the board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If prior art standard pressers with mount housings and guide struts are used, then the presser rail is biased away from the support plate to secure scrap material, but the mount housings project upwardly from the support plate taking up storage space and interfering with the sliding action of the upper tool into the blanking station
Solution Approach 1:
The presser rail is nested within a recess in the support plate, with the presser rail positioned inside the recess such that it does not project upwardly from the support plate. This nesting arrangement eliminates the need for external mount housings while maintaining the biasing function through a spring mechanism positioned within the recess.
Solution Approach 2:
The mount housings and guide struts are extracted from the design, replacing them with a simplified presser rail assembly that integrates directly into the support plate recess. The essential function of securing scrap material is maintained through the presser rail and spring mechanism without the bulky external mounting structures.
2Reliability
If prior art standard pressers with mount housings and guide struts are used, then the presser rail is biased away from the support plate to secure scrap material, but the mount housings project upwardly from the support plate interfering with the sliding action of the upper tool into the blanking station
Solution Approach 1:
The presser rail is nested within a recess in the support plate, creating a flush surface that eliminates interference with the sliding action of the upper tool. The recess accommodates the presser rail and spring mechanism while maintaining a smooth exterior surface for unobstructed tool movement.
3Volume of moving object
If the upper tool is designed with interior mounted pressers, then storage space is reduced and interference with sliding action is eliminated, but the pressers cannot effectively secure and stabilize the carton blank scrap surrounding the blanks
Solution Approach 1:
The presser rail is nested within a recess in the support plate, allowing it to extend downwardly to effectively secure and stabilize the carton blank scrap. This nested configuration provides both space efficiency and functional effectiveness by positioning the presser rail in optimal contact with the scrap material while maintaining a compact overall structure.
Solution Approach 2:
The presser rail is made movable within the recess through a spring biasing mechanism, allowing it to dynamically adjust its position to secure scrap material effectively during the blanking operation while retracted when not in use to minimize storage space and interference.
4Device complexity
If prior art presser assemblies are arranged in static rows, then the structure is simple, but there is limited ability to customize presser geometry and arrangement to suit different blanking operations
Solution Approach 1:
The presser assembly is segmented into individual presser rails that can be independently positioned within recesses at different locations on the support plate. This segmentation allows for customizable arrangements to suit different blanking operations while maintaining relatively simple individual component structures.
Solution Approach 2:
The presser rails are made adjustable and movable within their respective recesses, transforming the static fixed arrangement into a dynamic configurable system. This allows customization of presser geometry and position for different blanking operations while keeping the base structure simple.
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
The solution enables efficient stabilization of scrap material, enhances processing speed, and allows for flexible mounting configurations, reducing storage needs and interference issues, while maintaining consistent pressure throughout the blanking cycle.
Implementation Method 1
a biasing mechanism for biasing the wall sections to the extended position
Data Source
AI summary
A flat presser for supporting blanking material during operation of a blanking tool for making packaging blanks includes a plurality of coaxially oriented, concentric wall sections of progressively different interior areas and being collapsible from an extended position wherein the wall sections partially overlap in an axial direction to a collapsed position wherein the wall sections substantially completely overlap in the axial direction, and a biasing mechanism for biasing the wall sections to the extended position.