Movable Clamping Head Locking for Heavy Winding Cores
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Solution Overview
Problem
The axial movement of heavy winding cores in winding apparatuses creates significant axial forces, necessitating reinforced supports and complicating operator access, especially with longer and heavier cores.
Innovation Solution
A clamping apparatus with an axially movable clamping head and a locking mechanism that allows for secure clamping without axial shifting, using a splined shaft and hub connection, and a hydraulic or electric cylinder, to ensure precise alignment and locking, which can lock the clamping head in position, in the axial direction, and a hydraulic or electric cylinder, to facilitate easy insertion and removal of winding cores.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the clamping head is stationary to maintain compact design, then the device complexity is reduced, but axial forces increase requiring reinforced support
Solution Approach 1:
The clamping head is designed to be movable in the axial direction rather than stationary, allowing it to move between a retracted position (for core insertion/removal) and an extended clamping position. This dynamic design eliminates the need for reinforced support structures while maintaining compactness, as the clamping head can engage and disengage without requiring the entire support structure to handle large axial insertion forces.
2Ease of operation
If the clamping head is movable to simplify core handling, then ease of operation improves, but device complexity increases
Solution Approach 1:
The clamping apparatus is segmented into distinct functional components: a movable clamping head assembly, a locking mechanism, and a support structure. The clamping head can be independently moved and locked into position, separating the functions of movement (handled by the movable head) and positioning (handled by the locking mechanism). This segmentation simplifies the overall design compared to a fully adjustable system, as each component has a dedicated function.
Solution Approach 2:
A locking mechanism acts as an intermediary between the movable clamping head and the support structure. This locking mechanism temporarily fixes the clamping head in the extended position during clamping operations, mediating between the need for movability (for easy core handling) and the need for stability (for accurate clamping). The locking mechanism engages and disengages to provide stability only when needed, maintaining ease of operation while preventing excessive device complexity.
3Productivity
If the winding core length is increased to accommodate wider material webs, then productivity improves, but weight increases requiring stronger support
Solution Approach 1:
The movable clamping head design allows the apparatus to accommodate longer, heavier winding cores without requiring proportionally stronger support structures. By enabling the clamping head to move into position and lock, the system can handle increased core weights and lengths that correspond to wider material web production, thereby supporting higher productivity without the support structure needing to be excessively reinforced for the full axial insertion forces.
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 solution reduces axial forces on the support, simplifies core handling, and allows for compact design without the need for additional aids like spring assemblies, enabling efficient operation with large and heavy winding cores.
Implementation Method 1
the locking mechanism locks the clamping head in the extended position axially and forms a fixed stop for the clamping head
Implementation Method 2
a hydraulic or electric cylinder, to ensure precise alignment and locking
Implementation Method 3
a hydraulic or electric cylinder, to ensure precise alignment and locking
Data Source
AI summary
A clamping apparatus for clamping a winding core is disclosed including a base, a clamping head, and a locking mechanism. The locking mechanism is adjustable between a lock position and a release position, and the clamping head is axially moveable relative to the base between an extended position and a retracted position. The locking mechanism in the lock position locks the clamping head in the extended position axially and forms a fixed stop for the clamping head. A winding apparatus and a unit for producing a material web are disclosed.