Spaced Tube Row Positioning for Firework Assembly
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Solution Overview
Problem
Existing automatic pot assembly machines for combination fireworks struggle with maintaining structural stability and accuracy of spaced tube rows, leading to inefficiencies and deviations in the production of fan-shaped products, which affects the display effect and requires manual labor with high production costs.
Innovation Solution
The use of a bottom cardboard with notch positioning holes that correspond to the tube spacing, allowing the paper tubes to be accurately arranged and fixed before gluing, enabling the formation of stable spaced tube rows and facilitating automatic production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If tube rows are arranged with spacing between paper tubes, then positioning accuracy and structural stability are improved, but existing automatic assembly machines cannot process such configurations
Solution Approach 1:
A positioning board with positioning holes is introduced as an intermediary component between the tube rows and the assembly machine. The positioning holes in the board provide precise spacing and alignment for the paper tubes, enabling accurate positioning without requiring complex machine adjustments. This mediator allows automatic assembly machines to process spaced tube row configurations that were previously only achievable through manual arrangement.
2Stability of the object's composition
If paper tubes are closely arranged without spacing, then structural stability before gluing is maintained through mutual contact, but positioning accuracy deteriorates due to cumulative errors from wall thickness variations
Solution Approach 1:
The tube row structure is segmented by introducing spacing between individual paper tubes. This segmentation breaks the cumulative error chain that occurs in closely arranged tubes, as each tube's position is independently controlled by the positioning board's holes rather than being dependent on the previous tube's position. The spacing creates discrete positioning points that eliminate error accumulation while the positioning board maintains overall structural stability.
3Manufacturing precision
If manual arrangement of spaced tube rows is used, then positioning accuracy is achieved, but production efficiency is low and labor costs are high
Solution Approach 1:
The positioning board with pre-drilled positioning holes is prepared in advance, creating a ready-made template for accurate tube row arrangement. This preliminary preparation eliminates the need for manual measurement and positioning during assembly, as the positioning holes are already precisely located. The pre-prepared positioning board enables automatic assembly machines to quickly and accurately position multiple tube rows, dramatically improving production efficiency while maintaining high positioning accuracy.
Data Source
AI summary
Disclosed is a kind of combination fireworks, in which a plurality of paper tubes form a tube row, and the plurality of tube rows are stacked and assembled for forming, wherein each tube row is provided with a bottom cardboard, two sides of the bottom cardboard are correspondingly provided with notch positioning holes, and the bottom cardboard beside the notch positioning holes forms the protruding cardboard beside the holes; the cardboard beside the holes is folded and stuck on both sides of the paper tube, and both ends of the paper tube are respectively embedded in corresponding notch positioning holes. The structure of spaced tube rows is adopted, so that the radial size error of the tube body of the paper tube is not accumulated in the tube rows, thus allowing the tube body to accurately reach a predetermined work position, and improving the accuracy and reliability of subsequent processes.