Corrugated Cardboard Packaging Device Corner Crushing
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Solution Overview
Problem
Existing automated packaging systems require lateral cut-outs in cardboard blanks, leading to dust pollution, complex manufacturing processes, and the creation of unstable, irregularly shaped boxes that are difficult to fold and stack.
Innovation Solution
A method and device for packaging articles into a box using a corrugated cardboard blank with longitudinal and transversal crease lines, which is crushed in the corners to make it easily foldable, eliminating the need for lateral cut-outs and resulting in a more regular, stiff, and stackable box.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If lateral cut-outs are created on the blank to form transversal cut lines, then the box can be formed, but dust is generated that pollutes the manufacturing environment and accumulates in the machine
Solution Approach 1:
The invention extracts the problematic lateral cut-outs from the manufacturing process. Instead of removing material laterally to create cut lines, the patent uses longitudinal crease lines that allow the box to be formed by folding without generating dust or chips in the manufacturing environment.
Solution Approach 2:
The invention converts the harmful dust generation into a beneficial process by eliminating the need for lateral cut-outs entirely. The box is formed through longitudinal creasing and folding, which produces no dust or chips, thereby solving the pollution problem while maintaining box formation capability.
2Ease of manufacture
If many transversal cut-outs are created on the blank, then the box can be formed, but the manufacturing process becomes complex and requires a pair of knives
Solution Approach 1:
The invention removes the complex knife-based transversal cutting operation from the process. By using longitudinal crease lines instead, the box can be formed with simpler equipment and fewer操作步骤, reducing manufacturing process complexity.
Solution Approach 2:
The invention segments the box formation process into longitudinal creasing and folding operations rather than requiring multiple transversal cuts. This segmentation allows for simpler equipment requirements and a more straightforward manufacturing sequence.
3Ease of manufacture
If lateral cut-outs are created on the blank, then the box can be formed, but the box has many overlapping flaps that make it difficult to fold and irregular in shape
Solution Approach 1:
The invention extracts the source of irregularity by eliminating lateral cut-outs. The box is formed through longitudinal creasing and folding, which produces regular, stable flaps that fold cleanly without creating the overlapping and irregular shapes caused by transversal cut-outs.
Solution Approach 2:
Instead of making transversal cuts to form box sides, the invention inverts the approach by making longitudinal creases and folding the sides upward. This inversion of the formation method produces regular, stable flaps rather than overlapping irregular ones.
4Ease of manufacture
If lateral cut-outs are created on the blank, then the box can be formed, but the box is unstable and has limited stacking capability
Solution Approach 1:
The invention removes the structural weakness introduced by lateral cut-outs. By forming the box through longitudinal creasing and folding, the structure becomes more stable with better stacking capability, as the flaps are firmly bound together rather than overlapping loosely.
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 the efficient and cost-effective manufacturing of boxes that are easier to fold, more stable, and can be stacked in large quantities, reducing transportation costs and carbon footprint while minimizing dust and chip generation.
Implementation Method 1
opposite pressing members such as jaws of a press and/or pressing rollers, arranged symmetrically with respect to a center line of the device, whose lateral position is adjustable for their ends or tips to match the two longitudinal crease lines, and activated in a timely manner as the blank is transported into the device to crush the corrugated cardboard in the top, middle and bottom corners of the blank
Data Source
AI summary
A device for automated packaging of articles, comprising a conveyor for feeding and transporting into the device a blank of corrugated cardboard, a pair of crease wheels for creating two longitudinal crease lines in the blank, a transversal blade or score applicator for successively creating four transversal crease lines in the blank as the blank is transported into the device, and opposite pressing members such as jaws of a press and/or pressing rollers, arranged symmetrically with respect to a center line of the device, whose lateral position is adjustable for their ends or tips to match the two longitudinal crease lines, and activated in a timely manner as the blank is transported into the device to crush the corrugated cardboard in the top, middle and bottom corners of the blank in order to make it easily foldable.