Reversing Reel Support Device for Metal Strip Winding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Reversible reels used for metal strip reeling face mechanical load issues due to one-sided support during winding and unwinding, leading to asymmetrical bending lines, reduced belt speeds, and quality restrictions, as existing support systems are inadequate in providing continuous and symmetrical support to the reel mandrels.
Innovation Solution
A support device with a guide unit and a support unit that can be slidably guided to maintain continuous contact with the reel mandrel, transferring the support function to a stationary mandrel support bearing, allowing for symmetrical force distribution and higher strip tension, while minimizing belt tension fluctuations and enabling higher belt speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one-sided support is used during flying/winding, then the reel mandrel can be supported without complex positioning mechanisms, but the bending line becomes asymmetrical and mechanical loads increase
Solution Approach 1:
The support device is designed to be movable along the reel mandrel axis, transitioning from a stationary one-sided support position to a dynamic two-sided support configuration. The support units can be positioned at different locations along the mandrel and moved to provide symmetrical support during turning operations, resolving the contradiction between simple initial support and symmetrical load distribution.
Solution Approach 2:
The support device is divided into multiple independent support units that can be positioned at different locations along the reel mandrel. This segmentation allows one support unit to provide initial support during flying/winding while another support unit provides symmetrical support during turning, eliminating the asymmetrical bending line without requiring a single complex support mechanism.
2Device complexity
If one-sided support is used, then the support structure remains simple, but belt tension must be limited and metal belt runs sideways
Solution Approach 1:
The support device transitions from a simple one-sided support configuration to a dynamic two-sided support system. During flying/winding, one support unit provides minimal support maintaining simplicity. During turning operations, additional support units are activated to provide symmetrical support, enabling higher belt tension and preventing sideways running of the metal belt.
Solution Approach 2:
The support device is pre-configured with multiple support units positioned along the reel mandrel. Before turning operations begin, the additional support units are positioned and activated in advance, ensuring that symmetrical support is ready when needed to maintain belt running accuracy during high-tension operations.
3Ease of operation
If maximum collar diameter protrudes beyond rotor axis, then access to winding positions is improved, but the rotor cannot rotate properly
Solution Approach 1:
Instead of increasing the collar diameter in the radial direction (which would interfere with rotor rotation), the support device extends in the axial direction parallel to the rotor axis. This dimensional change allows the support units to reach the winding positions without protruding beyond the rotor axis, maintaining proper rotor rotation while improving access.
Solution Approach 2:
The support device acts as an intermediary element that provides the necessary support function without interfering with rotor rotation. By positioning support units along the axial direction and using movable support mechanisms, the device enables access to winding positions while the rotor maintains its rotation path unobstructed.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a support device (6, 19) for a reversing reel (4, 17) for reeling a metal strip (2), comprising at least one support unit (7, 20), which can be brought into supporting contact with a free end section of a reel mandrel (5, 18) of the reversing reel (4, 17), which reel mandrel is used for reeling. In order to enable improved continuous support of the free end section during a complete reeling operation, the support device (6, 19) comprises at least one guiding unit (8, 21), on which the support unit (7, 20) is slidably guided and which supports the support unit (7, 20) in every position of the support unit (7, 20) relative to the guiding unit (8, 21).