Radially Resilient Screw Cap Thread Formation
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Solution Overview
Problem
Existing screw cap manufacturing processes are complex and time-consuming due to the need for a separate moulding insert to form the thread, which limits manufacturing efficiency and increases costs.
Innovation Solution
A screw cap with a radially resilient screw section that includes a desiccant chamber and a childproof locking mechanism, allowing for forcible ejection from the mould without turning parts, enabling compact mould design and reducing cycle time and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a separate moulding insert is used to form the screw thread, then the thread can be formed with high precision, but the manufacturing process becomes complex and time-consuming
Solution Approach 1:
The invention extracts and eliminates the separate moulding insert from the manufacturing process. Instead of using a complex insert to form the thread, the screw cap is designed with an integrated thread-forming structure that creates the thread directly during moulding, removing the need for additional components and steps.
Solution Approach 2:
The invention merges the thread-forming function into the main moulding process. The screw cap structure integrates the thread geometry directly into the mould cavity, combining what were previously separate operations (moulding and thread formation) into a single integrated process.
2Manufacturing precision
If a separate moulding insert is used to form the thread, then the thread structure can be precisely controlled, but the manufacturing cycle time increases
Solution Approach 1:
The thread structure is prepared in advance as part of the mould cavity design rather than being formed during a separate operation. The mould is pre-configured with the thread geometry, allowing the thread to be formed automatically during the initial moulding cycle without requiring additional time for subsequent thread formation.
3Ease of manufacture
If the screw cap structure is simplified for easier manufacture, then manufacturing costs decrease, but sealing performance may be compromised
Solution Approach 1:
The invention applies local quality by providing enhanced sealing features specifically at the critical sealing interface between the screw cap and container, while keeping other portions of the screw cap structurally simple. The sealing surface incorporates specific geometric features that ensure reliable sealing without adding overall structural complexity.
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 radially resilient screw cap simplifies the manufacturing process, eliminates the need for a screw-insert, and enhances sealing performance, while ensuring effective tamper evidence and childproof locking, thereby improving manufacturing efficiency and reducing costs.
Implementation Method 1
the screw section is radially resilient... the screw section can be radially expanded to the outside, or radially compressed to the inside by a certain amount when a force is applied. After the force has been removed, the screw section returns into its original shape
Data Source
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AI summary
The invention relates to a container (60), comprising a container body (40) for interaction with a screw cap (10) and the screw cap (10) capable of being screwed onto a neck (44) of the container body (40). The screw cap (10) comprises: a substantially cylindrical screw section (17) comprising a screw thread (16) on its inner face; at least one tamper evidence member (18) for indicating an initial opening of the screw cap (10); at least one childproof locking member including a first locking section (20.1, 20.2), wherein the tamper evidence member comprises at least one second locking section (22.1, 22.2), and wherein the first locking section (20.1, 20.2) and the second locking section (22.1, 22.2) are angularly separated from one another; and a desiccant chamber (24) located radially inwardly to the screw section. The screw section (17) is radially resilient, and the first and second locking sections (20.1, 20.2; 22) are arranged at an angular separation of about 15°-155°.