Punch Guiding Frame Deformation Prevention via Pivot Seat Segmentation
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Solution Overview
Problem
Conventional stationery punching devices deform during use, causing the punch to incline and resulting in poor quality punches with rough edges due to the transmission of upward counterforces that generate torque, leading to interference with the die support frame.
Innovation Solution
A stationery punching device design featuring a pivot seat with side arms spaced apart from the punch guiding frame by slits, preventing upward pulling forces from causing deformation and maintaining the punch's vertical alignment, along with an urging unit that transmits force only to a crossbar, avoiding deformation of the punch guiding frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pivot end of the punch guiding frame is allowed to pivot about the connecting end to generate torque for driving the punch, then the punching operation can be performed, but the punch guiding frame deforms and the punch inclines relative to the vertical direction
Solution Approach 1:
The pivot seat is divided into a fixed portion (connected to die support frame) and a movable portion (pivoting about fixed portion), separating the pivoting function from the punch guiding frame. This segmentation allows the punch guiding frame to remain rigid while the pivot seat absorbs the pivoting motion, preventing deformation and maintaining punch alignment.
2Manufacturing precision
If the punch guiding frame is made rigid to maintain punch alignment, then punching precision is improved, but the upward counter force causes deformation and interference with the die support frame
Solution Approach 1:
The pivot seat acts as an intermediary component between the operating lever and the punch guiding frame. It receives the operating force and transmits it to the punch through controlled pivoting, while its fixed portion anchors to the die support frame, preventing the transmission of harmful upward counter forces to the punch guiding frame and maintaining both alignment and stability.
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 design ensures precise punching without deformation of the punch guiding frame, preventing interference with the die support frame and eliminating rough edges, thereby improving the quality of punched objects.
Implementation Method 1
a pivot seat (6) having a seat-pivot end (61) that is disposed adjacent to the second end (32) of the punch guiding frame (3), a connecting end (62) that is opposite to the seat-pivot end (61) in the first direction (Y1) and that is disposed at and that is securely connected to at least one of the first ends (21, 31) of the die support frame (2) and the punch guiding frame (3)
Data Source
AI summary
A stationery punching device for creating a decorative craft that includes a die support frame, a punch guiding frame aligned with the die support frame, a punch, a pivot seat connected to at least one of ends of the die support frame and the punch guiding frame, an operating lever pivoted to the pivot seat, and an urging member for urging the punch. The pivot seat is spaced apart from the punch guiding frame by first and second slits, so that when an upward pulling force acts on the pivot seat, the upward pulling force cannot be transmitted from the pivot seat directly to the two sides and one end of the punch guiding frame.