Device and method for finishing a group of threads and/or processing a group of threads into area-measured material
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Solution Overview
Problem
The production of warp beams for textile fabrics is costly due to the need for precise arrangement of threads, and positioning errors can lead to defects in the fabric.
Innovation Solution
A device with a transversely displacing receptacle and control device allows for lateral offset compensation of threads during unwinding, using a revolution counter, data carrier, or sensors to maintain edge position accuracy, enabling cost-effective material carrier production and reducing fabric defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If threads are arranged on the warp beam with great accuracy, then fabric quality is improved, but production cost increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing the actual lateral offset of threads during the winding process on a data carrier. This offset information is recorded before the weaving process begins, allowing the control device to later compensate for these offsets by adjusting the material carrier's transverse position, thereby maintaining fabric quality without requiring expensive precision winding equipment
Solution Approach 2:
The patent implements feedback by using sensors to detect the actual lateral offset of threads during winding, storing this information on a data carrier, and then using this stored information to control the transverse displacement of the material carrier during unwinding. This closed-loop approach allows the system to automatically compensate for winding inaccuracies, reducing the need for high-precision winding while maintaining fabric quality
2Manufacturing precision
If a transverse displacement drive is added to the receptacle, then thread positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The patent applies dynamics by making the material carrier's position dynamic rather than fixed. The receptacle is designed to displace transversely to the process direction based on stored offset information, allowing the system to adapt to winding variations. This dynamic adjustment is achieved through a relatively simple displacement drive controlled by pre-stored data, avoiding the need for complex real-time control systems
Solution Approach 2:
The patent reduces device complexity by performing the complex calculation and control decisions in advance. The lateral offset information is stored on a data carrier during winding, and the control device simply retrieves and executes this pre-calculated information during unwinding. This approach replaces complex real-time control with simpler automated execution of pre-determined adjustments
Data Source
Figure 1
AI summary
A device (1) and a method for finishing a sheet of threads (2) and/or processing a sheet of threads (2) to form a fabric is specified. The device has a process section (3) and an unwinding station upstream of the process section (3) which has a receptacle (11) for a material carrier (4) from which the group of threads (2) can be pulled in a process direction. One would like to be able to make the finishing or processing cost-effective. For this purpose, it is provided that the receptacle (11) can be displaced transversely to the process direction and has a displacement drive (12) that is controlled by a control device (15).