Cap Applicator Spigot and Anvil Alignment Mechanism
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Solution Overview
Problem
The existing cap applicator units require high technical skill and frequent maintenance due to precise alignment requirements between the anvil and horn for effective sealing, leading to potential misalignment and leakage issues, especially in high-throughput applications where slight deviations can result in inadequate seals.
Innovation Solution
The apparatus features a spigot with an elongate body mounted in an anvil with a hole larger than the spigot, allowing for angular movement and a tensioning device to maintain alignment, enabling self-correction of misalignment during the sealing process, reducing the need for precise initial setup and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high alignment precision between anvil and horn is maintained, then sealing quality is improved, but device complexity and maintenance requirements increase
Solution Approach 1:
The spigot is designed to move dynamically within the anvil hole rather than being fixed, allowing automatic adjustment of alignment during operation. This dynamic positioning capability enables the system to maintain sealing quality without requiring extremely precise initial alignment between the anvil and horn.
Solution Approach 2:
The spigot automatically self-adjusts its position within the anvil hole through the applied pressure, correcting any misalignment between the anvil and horn without external intervention. This self-alignment mechanism reduces the need for complex precision machining and frequent maintenance.
2Productivity
If high throughput is achieved with direct pressure application, then productivity is improved, but anvil deformation and alignment drift increase
Solution Approach 1:
The spigot acts as an intermediary element between the anvil and the sealing horn, absorbing the direct pressure applied during sealing. By introducing this intermediate component that can move independently, the system can withstand high throughput operating conditions without transmitting deforming forces directly to the anvil, thereby maintaining alignment stability.
3Reliability
If tight tolerances are enforced for anvil-horn alignment, then seal integrity is improved, but ease of manufacture and setup decrease
Solution Approach 1:
The movable spigot design transforms the static alignment requirement into a dynamic self-adjusting system. During setup, the anvil and horn do not need to be precisely aligned because the spigot will automatically position itself correctly during operation through the pressure applied from the horn, significantly simplifying the manufacturing and setup process.
Solution Approach 2:
The spigot performs self-alignment during the sealing operation by moving within the anvil hole in response to applied pressure. This self-correcting mechanism eliminates the need for complex precision alignment procedures during setup and reduces the skill level required for installation and maintenance.
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 solution allows for a more forgiving alignment tolerance, reducing setup complexity and maintenance needs while ensuring a reliable seal by allowing the spigot to automatically correct for minor misalignments during operation, enhancing the consistency and quality of the sealing process.
Implementation Method 1
at least one tensioning device arranged to provide a force tensioning the spigot against the anvil
Data Source
AI summary
Apparatus (10) is for use in a cap applicator unit (12). The apparatus (10) comprises a spigot (14) comprising an elongate body (16) and a head (18) connected to one end of the elongate body (16), and an anvil (20) provided with a hole (22) therein, the elongate body (16) of the spigot (14) mounted in the hole (22) of the anvil (20). The size of the hole (22) of the anvil (20) is sufficiently greater than the size of the elongate body (16) of the spigot (14) to permit angular movement of the spigot (14) relative to the anvil (20). The apparatus (10) further comprises at least one tensioning device (24) and (36) arranged to provide a force tensioning the spigot (14) against the anvil (20).