Winding Drum Connecting Element for Constant Tension
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Solution Overview
Problem
Existing methods for winding and unwinding windable materials result in scraps and inefficiencies due to the loss of tension force after unwinding, leading to economic disadvantages and material waste, especially with high-quality materials.
Innovation Solution
A method and device that maintain constant tension force by using a connecting element inferior to the windable material, which is wound onto the storage drum and generates counterforce after unwinding, allowing the windable material to be fed continuously into processing machines. This involves a braking device and a connection module that automatically detaches the windable material from the storage drum, ensuring continuous tension through a controlled braking process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the windable material is unwound from the storage drum after completion, then the unwinding process is finished, but tension force is lost and material scraps remain
Solution Approach 1:
A connecting element is introduced as an intermediary between the windable material and the storage drum. This connecting element remains on the drum after the windable material is unwound, serving as a bridge to maintain the material path and enable continuous feeding without creating scraps of the valuable windable material.
Solution Approach 2:
The connecting element is designed as a disposable, low-cost component that is wound onto the storage drum, serves its purpose of maintaining tension and material path, and is then discarded or replaced. This allows the valuable windable material to be fully utilized without scraps while the inexpensive connecting element absorbs the waste.
2Ease of operation
If the storage drum braking action is stopped after unwinding, then the drum can rotate freely, but constant tension force cannot be maintained
Solution Approach 1:
The connecting element is preliminarily wound onto the storage drum in a controlled manner before the actual unwinding process. This preliminary arrangement ensures that when the windable material is fully unwound, the connecting element remains positioned to maintain the material path and enable continuous feeding without interruption.
3Quantity of substance
If the windable material is completely unwound, then storage space is freed, but the material path must be reestablished
Solution Approach 1:
The connecting element serves as a permanent intermediary on the storage drum that maintains the material path geometry. This eliminates the complexity of reestablishing the material path after unwinding, as the connecting element provides a consistent reference and physical guide for the next windable material roll.
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 effectively prevents material scraps and maintains constant tension force during the unwinding process, integrating the remaining material into the processing sequence and reducing waste, thus enhancing the economic efficiency of high-quality material usage.
Implementation Method 1
a counterforce is generated by a braking action of the storage drum
Data Source
AI summary
A method and a device for optimal use of windable material during winding up onto and/or unwinding from storage drums operates in conjunction with feeding to winding machines. The windable material can be a textile web, a fabric web, a wire or the like. A counterforce necessary for keeping the tension force acting on the windable material constant is maintained until all of the windable material has been fed into subsequent processing. The counterforce may be maintained by a connecting element that is connected to the windable material and to the storage drum, is able to be wound up, and is of lower quality than the windable material. In the device, controllable means generate the counterforce counteracting the tension force until all of the windable material has been drawn into the subsequent processing device.