Pouch Forming Punch With Elastic Cushioning for Impact Control
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Solution Overview
Problem
Existing apparatuses for manufacturing pouches face challenges in effectively alleviating impacts applied to punches during the pressing process, which can adversely affect the outer appearance and lifespan of the pouches.
Innovation Solution
The apparatus includes a punch with upper and lower punches spaced apart, and an elastic part between the upper and lower punches to absorb impacts, along with a vacuum elongation process to angularly and uniformly mold the cup part of the pouch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a punch is used to press the pouch film to form the cup part, then the cup part can be molded, but an impact is applied to the punch during the pressing process which adversely affects the outer appearance and lifespan of the pouch
Solution Approach 1:
The patent applies beforehand cushioning by introducing an elastic member between the punch and the lower die. This elastic member is pre-installed to cushion the impact before it reaches the punch. When the punch presses the pouch film, the elastic member absorbs the impact force, preventing direct transmission to the punch while still allowing effective molding of the cup part.
Solution Approach 2:
The elastic member serves as an intermediary between the punch and the lower die. Instead of the punch directly contacting the rigid lower die, the elastic member mediates the interaction, providing a compliant interface that reduces impact while maintaining the necessary pressing function for cup part formation.
2Manufacturing precision
If the pouch film is pressed by the punch to form the cup part, then the cup part is molded, but the outer appearance of the pouch may be adversely affected by the impact
Solution Approach 1:
The elastic member provides beforehand cushioning that prevents impact-related defects in the pouch outer appearance. By absorbing the impact before it reaches the pouch film, the elastic member prevents wrinkles, deformations, or other appearance defects that would otherwise occur during the pressing process.
3Force
If a rigid pressing structure is used to mold the cup part, then the molding force is sufficient, but the impact adversely affects the lifespan of the apparatus
Solution Approach 1:
The patent applies parameter changes by transforming the rigid pressing structure into a compliant one through the addition of the elastic member. This changes the mechanical properties of the pressing system from rigid to flexible, allowing it to absorb impact forces while maintaining sufficient molding force for cup part formation.
Solution Approach 2:
The elastic member provides beforehand cushioning that protects the apparatus components from impact damage. By absorbing the impact energy during normal operation, the elastic member prevents cumulative damage that would reduce the lifespan of the punch and other apparatus components.
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
This solution effectively alleviates impacts on the punch and associated members, improves the molding of the pouch's outer appearance, and allows for more angular and uniform molding of the cup part, enhancing the pouch's structure and manufacturing efficiency.
Implementation Method 1
an elastic part disposed between the upper punch and the lower punch to elastically support the lower punch
Implementation Method 2
a vacuum elongation process to angularly and uniformly mold the cup part of the pouch
Data Source
AI summary
An apparatus for manufacturing a pouch includes a lower die provided with a forming groove for forming a cup part in a pouch film, an upper die disposed to be spaced upward from the lower die, and a punch supported by the upper die and configured to move toward the forming groove so as to press the pouch film to be disposed on the lower die. The punch includes an upper punch vertically and movably connected to the upper die, a lower punch disposed to be spaced downward from the upper punch and moving together with the upper punch to press the pouch film, and an elastic part disposed between the upper punch and the lower punch to elastically support the lower punch.