Pyrotechnic Housing Manufacturing Using Intermediary Loading Wall
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for manufacturing pyrotechnic casings risk deformation or damage during the introduction of pyrotechnic charges, which can lead to dimensional inconsistencies and safety issues, such as jamming or safety incidents when initiating the charge.
Innovation Solution
A method involving a rigid cylindrical loading wall that introduces the pyrotechnic charge into a loading volume, where a second cylindrical element positions around the charge after introduction, ensuring the charge is enclosed without deforming the housing components, using a felting process with a mold and resin to create the casing elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the pyrotechnic charge is introduced directly into the casing body, then the manufacturing process is simpler, but the casing body deforms or damages during charge introduction
Solution Approach 1:
A rigid cylindrical loading wall is introduced as an intermediary tool to contain the pyrotechnic charge during loading. This loading wall acts as a temporary container that prevents direct contact between the charge introduction process and the final casing body, thereby avoiding deformation while enabling straightforward charge loading.
Solution Approach 2:
The loading wall is positioned in place before the pyrotechnic charge is introduced. This preliminary positioning creates a protected environment for charge introduction, ensuring that the casing body is not exposed to deforming forces during the loading operation.
2Device complexity
If the casing body is used as the loading wall during charge introduction, then fewer components are needed, but the casing body risks deformation or damage
Solution Approach 1:
The rigid cylindrical loading wall serves as a temporary intermediary container that replaces the need to use the final casing body as the loading structure. This separate loading wall protects the casing body from damage while performing the loading function.
Solution Approach 2:
The loading wall is a temporary component used only during the charge introduction phase. After the charge is loaded and the casing is assembled, the loading wall is removed or discarded, as its function is no longer needed in the final product.
3Ease of manufacture
If the second element is positioned before charge introduction, then assembly is simplified, but the element deforms or damages during charging
Solution Approach 1:
The second element is preliminarily positioned around the loading wall before charge introduction. This preliminary positioning allows for proper alignment and setup, but the element is protected from damage because it is positioned around the protective loading wall, not directly exposed to the charge loading process.
Solution Approach 2:
The loading wall provides beforehand protection or cushioning for the second element during charge introduction. By positioning the second element around the loading wall before charging, the loading wall absorbs or prevents deforming forces that would otherwise affect the second element.
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 approach reliably prevents deformation and damage, ensuring the casing's integrity and dimensional conformity, thereby avoiding risks of jamming or safety incidents during pyrotechnic charging, and is applicable to both combustible and non-combustible casings.
Implementation Method 1
felting on a liquid-permeable mold by suction of a felting bath comprising suspended fibers and a resin
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 1E~1F
AI summary
The invention relates to a method for manufacturing a housing enclosing a pyrotechnic load and a facility for implementing said method. The method comprises at least: - inserting a pyrotechnic load into a loading space (V) defined laterally by a rigid cylindrical loading wall (32) and in a lower portion by a first element (10) of the housing to be obtained; - positioning a second cylindrical housing element (50) to be obtained above the inserted pyrotechnic load and in the extension of the cylindrical loading wall, the second element having a cylindrical side wall with the same shape and diameter as the cylindrical loading wall and being capable of engaging with the first element; and - concurrently translating (T1) the second element and the cylindrical loading wall relative to the first element so as to cause the second element to engage with the first element and form the housing enclosing the pyrotechnic load.