Reel Changer Clamping Cone with Lowerable Driver Elements
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Solution Overview
Problem
Existing roll changers face challenges in processing material rolls with different winding core hardnesses, leading to incomplete clamping and compromised torque transmission, requiring complex conversions and increased production costs in multi-type production environments.
Innovation Solution
A roll changer design featuring a clamping cone with retractable driver elements that adjust based on core hardness, allowing for optimal torque transmission by varying the number and type of driver elements, which can be lowered into the core material, ensuring secure engagement with both soft and hard materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a fixed number of driver elements are used on the clamping cone, then the structure is simple, but the torque transmission is insufficient when processing material rolls with hard winding cores
Solution Approach 1:
The clamping cone is designed with driver elements that can be lowered or retracted axially. During the clamping process, the driver elements are lowered to penetrate the winding core and transmit torque effectively. After clamping, they can be retracted. This dynamic adjustment allows the same clamping cone to adapt to different core hardnesses without structural modification.
Solution Approach 2:
The invention changes the axial position parameter of the driver elements on the clamping cone. By lowering the driver elements axially during clamping, they penetrate harder cores to transmit torque. By retracting them after clamping, the structure remains simple and reusable. This parameter change enables the system to handle varying core hardnesses with a single universal clamping cone.
2Adaptability or versatility
If complex conversions are made to the roll changer for processing different core types, then adaptability to different material rolls is improved, but production downtime increases
Solution Approach 1:
The clamping cone is designed as a universal component that can process material rolls with winding cores of different hardnesses. By incorporating lowerable and retractable driver elements, a single clamping cone design serves multiple functions - handling both soft and hard cores without requiring different clamping cone variants or complex conversions to the roll changer structure.
Solution Approach 2:
The dynamic lowering and retracting capability of the driver elements allows one clamping cone to adapt to different core types during operation. This eliminates the need for physical conversions or更换 (replacement) of clamping cones when switching between different material roll types, thus avoiding production downtime while maintaining versatility.
3Strength
If more driver elements are used to penetrate hard cores, then torque transmission is improved, but the clamping cone becomes more complex and costly
Solution Approach 1:
Instead of permanently installing multiple driver elements, the invention makes them lowerable and retractable. During clamping of hard cores, the driver elements are lowered to penetrate the core and transmit torque. After use, they are retracted, returning the clamping cone to a simple state. This dynamic approach achieves high torque transmission capability without permanently complicating the clamping cone structure, keeping manufacturing relatively simple and cost-effective.
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
Enables the simple and cost-effective processing of different material rolls without the need for complex retooling, allowing for efficient utilization of machines across various production types without downtime, ensuring reliable torque transmission and adaptability to diverse core materials.
Implementation Method 1
creating a positive and non-positive connection between the clamping cone and the winding core, which allows optimal torque transmission
Implementation Method 2
Driver elements are provided on the core contact surface, which penetrate into the core material on the end face of the winding core and contribute to the transmission of torque
Implementation Method 3
At least one of the driver elements provided on the sleeve contact surface can be at least partially retracted into the sleeve contact surface. Depending on the sleeve material used and its hardness, the number of driver elements to be used can be varied
Data Source
Figure 1~2
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AI summary
The invention relates to a reel changer having a holder for supporting a material reel (24) with a winding sleeve (26), wherein the holder comprises a carrier journal (03) and a plurality of driver elements (06; 07), and wherein the driver elements (06; 07) are arranged such that they engage in a front (27) of the winding sleeve (26). The number of driver elements (06; 07) engaging in the front (27) of the winding sleeve (26) can be varied.