Floating Punch Stamp Guide for High-Speed Foil Precision
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Solution Overview
Problem
Punch tools used in foil processing plants face accuracy issues due to acceleration forces during continuous forward and reverse movement, particularly when handling thin and sensitive foils, which complicates achieving high precision and quality in punching operations.
Innovation Solution
The punch tool features a movably connected punch stamp supported in a floating manner by a head plate, with a transverse sliding guide arrangement that allows for precise positioning independent of acceleration forces, enabling high precision cutting even during high-speed operations. This arrangement includes guide bolts and openings that maintain minimal play, ensuring accurate alignment of the stamp and cutting plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the punch tool is moved continuously with the foil material to perform punching operations, then productivity is improved, but manufacturing precision deteriorates due to acceleration forces acting on the punch stamp and cutting plate
Solution Approach 1:
The punch stamp is separated from the frame support system and independently supported on the head plate, allowing it to be positioned relative to the cutting plate without being affected by the acceleration forces acting on the entire punch tool assembly during movement
Solution Approach 2:
The head plate serves as an intermediary support structure between the frame and the punch stamp, providing a stable reference surface for positioning the stamp through the stamp guide arrangement while allowing the punch tool to move with the foil material
2Stability of the object's composition
If the punch stamp is rigidly connected to the frame, then structural stability is improved, but manufacturing precision deteriorates because the stamp cannot be precisely positioned relative to the cutting plate during high-speed movement
Solution Approach 1:
The support system is divided into three independent components: the frame, the head plate, and the punch stamp. The stamp is supported solely on the head plate through the stamp guide arrangement, separating its positioning function from the structural support function performed by the frame
Solution Approach 2:
The punch stamp is made movable in transverse direction relative to the head plate through the stamp guide arrangement, allowing it to float and self-adjust to maintain precise alignment with the cutting plate during high-speed punching operations
Data Source
AI summary
For precise alignment of the punch stamps relative to the cutting plates, the respective punch stamp is supported in a floating manner, i.e., in a transversely movable manner, on the head plate associated with the punch stamp. The alignment of the cutting edges of the punch stamp with respect to the cutting edges of the cutting plate is accomplished by at least one stamp guide arrangement that is directly active between the punch stamp and the cutting plate and effects precise relative positioning in a direction transverse to the active cutting edges. The centering elements may extend from the punch stamp through the matrix or cutting plate. Alternatively, the centering elements may extend from the cutting plate through the openings of the punch stamp or extend along sliding or positioning surfaces of the punch stamp.