Replaceable Lipstick Assembly for Hot Filling Integrity
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Solution Overview
Problem
Conventional lipstick containers are not suitable for softer or thinner lipsticks, as they tend to break or form scratches during filling and disposal, leading to environmental pollution and waste.
Innovation Solution
A lipstick container with a replaceable assembly comprising a base, fixed tube, support tube, sleeving tube, ascending and descending tube, and cap, allowing for hot filling in various orientations and enabling easy replacement of lipsticks, reducing waste and environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional lipstick filling method is used (pouring into molds then removing), then manufacturing process is simple, but softer or thinner lipsticks tend to break apart easily and scratches are formed
Solution Approach 1:
The invention divides the lipstick container into separable components: a reusable container body and a replaceable lipstick assembly. The lipstick assembly itself is segmented into the lipstick stick, a holding tube, and a cap. This segmentation allows the lipstick to be filled and cured independently, then installed as a complete unit, eliminating the breakage problem during the filling process while maintaining manufacturing simplicity.
Solution Approach 2:
The lipstick is pre-formed in a mold, cured, and then installed as a complete assembly into the container. This preliminary action of forming and curing the lipstick separately before installation eliminates the risk of breakage during the filling process, as the lipstick is already solid and stable when placed in the final container.
2Ease of manufacture
If lipstick is filled and disposed as a whole container, then manufacturing is simple, but environmental pollution increases and it is not eco-friendly
Solution Approach 1:
The container is segmented into a permanent container body and a replaceable lipstick assembly. Only the lipstick assembly needs to be disposed of after use, while the container body can be reused or recycled. This significantly reduces waste and environmental pollution compared to disposing of the entire container.
Solution Approach 2:
The invention enables recovery and reuse of the container body, cap, and holding tube after the lipstick is consumed. Only the lipstick stick itself is discarded, maximizing material recovery and minimizing environmental impact.
3Productivity
If lipstick is not taken out from molds or placed in containers in perfect vertical direction, then filling process is faster, but scratches are easily formed on the lipsticks
Solution Approach 1:
The lipstick is pre-formed and cured in the mold in any orientation, then removed as a complete unit. Since the lipstick is already solid and stable after curing, its orientation during installation into the container does not affect surface quality, allowing for faster, less precise positioning.
Solution Approach 2:
Instead of carefully positioning and filling the lipstick in the final container orientation, the invention inverts the process by pre-forming the lipstick in the mold in any orientation, then installing it as a complete assembly. This eliminates the need for precise vertical alignment during container filling.
Data Source
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AI summary
A lipstick container for hot filling with replaceable lipstick assembly includes a base, a fixed tube, a lipstick assembly and a cap. The lipstick assembly includes a support tube, a sleeving tube, and an ascending and descending tube; the fixed tube includes a first axial channel; the support tube includes a second axial channel; the sleeving tube includes a third axial channel; the ascending and descending tube includes a forth axial channel and a spiral groove portion screwed with internal threads of the support tube. The fixed tube is put on the sleeving tube and the ascending and descending tube is disposed through the sleeving tube and the support tube; an end of the sleeving tube urging against the support tube.