Injection Molded Lid With Embedded Filter For Spray Gun
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Solution Overview
Problem
Existing solutions for spray gun liquid containers are costly and require additional assembly steps for attaching filters, which complicates production and storage.
Innovation Solution
A plastic lid with an integrated tubular connecting piece and filter, where the filter medium is embedded within the plastic during injection molding, allowing for a single-step production and space-efficient stacking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If filters are attached separately to the lid after production, then filter attachment is possible, but production cost increases and assembly steps are added
Solution Approach 1:
The filter medium is integrated directly into the lid structure during injection molding, combining what were previously separate components (lid and filter) into a single molded part. This eliminates the need for separate filter attachment steps and reduces production cost by reducing the number of parts and assembly operations.
Solution Approach 2:
The filter medium is positioned and embedded in the lid during the injection molding process itself, performing the filter attachment action beforehand during primary production. This preliminary integration means no additional assembly steps are needed later in the manufacturing process.
2Productivity
If filters are attached separately to the lid, then filter functionality is achieved, but production time increases
Solution Approach 1:
The lid and filter are produced as a single integrated component through injection molding, merging two previously separate manufacturing processes into one. This consolidation reduces total production time by eliminating the sequential nature of separate production and assembly operations.
Solution Approach 2:
The filter medium is pre-positioned and embedded in the lid during the injection molding process, performing the filter attachment action beforehand during primary production. This preliminary integration means no additional assembly steps are needed later in the manufacturing process.
3Ease of manufacture
If conventional lids are used without integrated filters, then production is simpler, but additional assembly steps are required
Solution Approach 1:
The lid and filter are produced as a single integrated component through injection molding, merging two previously separate manufacturing processes into one. This consolidation reduces total production time by eliminating the sequential nature of separate production and assembly operations.
Solution Approach 2:
The filter medium is pre-positioned and embedded in the lid during the injection molding process, performing the filter attachment action beforehand during primary production. This preliminary integration means no additional assembly steps are needed later in the manufacturing process.
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 reduces production costs and eliminates the need for additional assembly, enabling economical and space-saving storage and use of the lids with filters.
Implementation Method 1
The filter medium is a part of the filter that flows through when liquid flows out of the liquid container through the connection piece of the cover to the spray gun and thereby retains solid particles
Data Source
Figure 1
AI summary
The invention relates to a lid (1) for a liquid container for a spray gun, manufactured from plastic by injection molding. In a connecting nozzle (3), the lid (1) has an elongated, tapered filter (6) with a filter frame (7) that is integrally formed with the lid (1) and into which a filter medium (10) is embedded. The lids (1) are stackable, with the filters (6) overlapping and potentially extending beyond the distance between stacked lids (1).