Roll Stand Changing Device Curved Path Mechanism
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Solution Overview
Problem
Existing roll stand changing devices in rolling mills face challenges such as limited accessibility, high maintenance costs, and inefficient movement mechanisms, making it difficult to change roll stands individually or collectively in a timely and cost-effective manner, especially when moving roll stands transverse to the rolling line.
Innovation Solution
A device utilizing a carrier element that moves along a predetermined curved path, allowing for non-linear movements to connect and disconnect from the roll stand, enabling efficient transverse and parallel movement of roll stands without disengaging displacement mechanisms, thus reducing time and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate displacement mechanism is provided for each roll stand on the drive side, then individual roll stands can be displaced, but the available installation space is extremely limited and maintenance work is costly and inconvenient
Solution Approach 1:
Multiple displacement mechanisms are merged into a single shared mechanism. The displacement mechanism is disposed transversely to the rolling line and can service multiple roll stands sequentially, eliminating the need for separate mechanisms for each roll stand while maintaining individual displacement capability.
Solution Approach 2:
The displacement mechanism is repositioned from the drive side to a transverse position relative to the rolling line. This dimensional change in mechanism placement provides adequate installation space and improves accessibility for maintenance while preserving the functionality to displace individual roll stands.
2Ease of operation
If the roll stand changing cart is located between the rolling block and the displacement mechanism, then the displacement mechanism can be disposed on the operating side, but the roll stand changing cart can only travel parallel to the rolling line and not transverse to the rolling line
Solution Approach 1:
The displacement mechanism is positioned transverse to the rolling line rather than parallel to it. This allows the roll stand changing cart to access the mechanism and travel in transverse direction, enabling direct movement into the roll stand workshop without being constrained to parallel travel only.
3Adaptability or versatility
If displacement mechanisms are disposed on the roll stand changing cart itself, then the cart can move flexibly, but at least twice the number of roll stand displacement mechanisms must be provided since there are always at least two roll stand changing carts present
Solution Approach 1:
Instead of equipping each roll stand changing cart with its own displacement mechanism, a single shared displacement mechanism is provided that serves multiple carts. The mechanism is disposed transverse to the rolling line and can service any cart that needs to displace a roll stand, reducing the total number of mechanisms from twice the number of carts to just one.
4Ease of manufacture
If the roll stand receptacle is opened at the top and the roll stand is inserted from above, then the roll stand can be replaced, but the rolling line is generally inaccessible and serviceability is greatly disadvantaged
Solution Approach 1:
The roll stand displacement is achieved through a transverse direction rather than vertical insertion from above. The displacement mechanism moves roll stands horizontally transverse to the rolling line, providing easy accessibility for both operation and maintenance without requiring overhead crane equipment or top opening of the receptacle.
Data Source
AI summary
The invention relates to a device for moving a roll stand into or out of a roll stand receptacle of a rolling line, comprising a carrier element for entraining an entrainment element of a roll stand and a conveying element, wherein the carrier element is moved along a predetermined curved path.