Triangular Ear Folding Mechanism for Packaging Bags
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Solution Overview
Problem
Existing container packaging apparatuses face challenges in achieving uniform and stable folding of triangular ear portions in packaging bags, leading to uneven packaging and reduced quality, especially when dealing with containers of varying sizes and shapes.
Innovation Solution
A container packaging apparatus that includes a creasing means with ear folding and shaping bars to press against the roots of triangular ear portions, creating a folding-back line guide, allowing for precise and uniform folding of these portions before they are folded back over the container's side surface, thereby ensuring stable and high-quality packaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the container is inserted into the packaging bag without creasing the triangular ear portions, then the packaging process is simpler and faster, but the folding of the ear portions becomes uneven and quality deteriorates
Solution Approach 1:
The creasing means performs preliminary action by creating fold lines in the triangular ear portions before the actual folding operation. The ear folding and shaping bars press against the packaging bag to form creases that guide subsequent folding, ensuring uniform and precise folding results without requiring complex real-time control mechanisms.
Solution Approach 2:
The creasing means is divided into multiple ear folding and shaping bars that can be independently positioned and operated. Each bar corresponds to a specific triangular ear portion, allowing separate and precise creasing of each ear portion, which simplifies the control mechanism while achieving high folding uniformity.
2Manufacturing precision
If air is trapped inside the triangular ear portions during container insertion, then the folding process becomes difficult and uneven, but adding air removal mechanisms increases device complexity
Solution Approach 1:
The creasing operation performs a preliminary action of compressing and shaping the triangular ear portions before folding. This preliminary compression naturally expels trapped air from the ear portions, eliminating the need for separate air removal mechanisms while ensuring smooth and uniform folding.
Solution Approach 2:
The creasing process converts the potentially harmful effect of trapped air (which causes uneven folding) into a beneficial compression effect. By pressing the ear portions with the creasing bars, the trapped air is naturally expelled while simultaneously creating the desired fold shape, turning a problem into a solution.
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 apparatus enables precise and uniform folding of triangular ear portions, resulting in consistently high-quality packaging of containers, regardless of their size or shape, by exhausting trapped air and providing a stable base line for folding, thus improving packaging stability and uniformity.
Implementation Method 1
a creasing means for creasing each of the triangular ear portions with a folding-back line in its site of root, prior to folding back the each triangular ear portion, in which the creasing means has a plurality of ear folding and shaping bars, each adapted to be releasably pressed against the packaging bag, specifically against a root of each triangular ear portion in its side to be folded back
Data Source
AI summary
A wafer case is inserted into a packaging bag, and an ear folding and shaping bar is pressed against a root of each corresponding triangular ear portion, making a folding back line in each triangular ear portion. Each of the triangular ear portions is folded back over a container side surface by a bag rear end ear folder. The folding operation for each of the triangular ear portions is performed precisely and smoothly.