Movable Discharge Head for Can Filling in Spinning
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Solution Overview
Problem
Existing can changing devices in spinning preparation plants face challenges such as instability, high forces during can changes, overfilling issues, and limited accessibility, leading to reduced production speed and increased wear and dirt sensitivity.
Innovation Solution
A device with a displaceable depositing head and integrated turntable, where the entire storage head moves horizontally between cans, allowing for faster can changes and improved accessibility, with a flat construction and guide rollers to prevent sliver damage and ensure smooth fiber flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the feed rate is reduced during can changeovers to prevent fiber material from being fed between cans, then fiber material damage is avoided, but card production significantly decreases
Solution Approach 1:
The discharge head is made movable rather than stationary, allowing it to dynamically reposition between cans during operation. This enables the system to maintain high feed rates while the discharge head moves to accommodate can changes, eliminating the need to reduce feed rate and thus maintaining productivity without compromising fiber quality
Solution Approach 2:
The empty can is positioned in advance in a ready-to-fill position adjacent to the current can. This preliminary positioning allows for rapid can changeover without requiring the feed rate to be reduced, as the system is already prepared for the transition
2Device complexity
If the discharge head remains permanently stationary, then the structure is simple and stable, but can changeovers require reducing feed rate and take longer time
Solution Approach 1:
The discharge head is converted from a stationary component to a movable one, capable of sliding along guides to reposition between cans. This dynamic capability enables rapid can changeovers without requiring feed rate reduction, significantly reducing time loss during can changes while maintaining structural simplicity through guided linear movement
3Quantity of substance
If the can is overfilled to maximize fiber sliver capacity, then material utilization is improved, but the turntable's support is overloaded and sliver can slip out during can removal
Solution Approach 1:
The turntable function is extracted from the stationary support structure and integrated into the movable discharge head. This allows the overfilled can to remain supported by the moving discharge head during the changeover process, and the sliver is cleanly severed by the cutting device before can removal, preventing sliver from being pulled out during can extraction
Solution Approach 2:
The movable discharge head acts as an intermediary between the overfilled can and the stationary frame. It provides continuous support to the can during movement and positioning, distributing forces appropriately and enabling the can to be moved and replaced without compromising sliver integrity, even when overfilled
Data Source
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AI summary
The present invention relates to a device for filling a can with a sliver produced in a spinning preparation installation, e.g. a drawing frame, carding machine or combing machine. The device is suitable to receive an empty and a full can at the same time, and comprises a depositing head (13) with an integrated rotary plate (14). According to the invention, said depositing head (13) is movably mounted such that it can be moved from a first position above a first can to a second position above a second can.