Creel Angle Adjustment for Textile Bobbin Winding

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Solution Overview

Problem

Existing textile machines struggle with precise adjustment of the creel relative to the drive roller, leading to imprecise contact forces and potential issues like uneven bobbin winding and slippage, especially in image winding zones.

Innovation Solution

A method to set the rotational angle position of the creel by determining the actual distance between the bobbin tube and the drive roller, calculating correction values for precise alignment, and using devices like magnet wheels or incremental encoders for precise angle measurements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual adjustment means are used to position the creel, then the creel can be moved to an approximate position corresponding to the bobbin diameter, but the exact position cannot be precisely determined

Engineering Contradiction:

Improveposition measurement precisionVSAvoidadjustment system complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical adjustment with an automated system using a drive roller that automatically positions the creel. The drive roller rotates to move the creel to the target position, eliminating the need for manual cranking while enabling precise position detection through sensors that monitor the actual distance between the bobbin and drive roller.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent implements a feedback mechanism where the actual distance between the bobbin and drive roller is continuously measured and compared to the target distance. A correction value is calculated based on the deviation and used to adjust the creel position, ensuring precise positioning. This closed-loop feedback system resolves the contradiction by providing exact position measurement without requiring complex manual adjustment mechanisms.

Inventive Principle:

Principle #23Feedback

2Manufacturing precision

If the creel position is adjusted manually, then operation is simple, but manufacturing precision of bobbin winding is insufficient

Engineering Contradiction:

Improvebobbin winding precisionVSAvoidcreel adjustment operation

Core Design Contradiction:

Manufacturing precisionVSEase of operation

Solution Approach 1:

The system performs self-positioning of the creel through automated control. The control unit automatically calculates the correction value based on measured deviations and actuates the drive roller to adjust the creel position without operator intervention. This self-service mechanism achieves high manufacturing precision while maintaining operational simplicity.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Manual mechanical adjustment is replaced with an automated electromechanical system. The drive roller, controlled by a motor, automatically positions the creel based on feedback from distance sensors and calculations from the control unit. This substitution maintains ease of operation (simple start/stop commands) while dramatically improving bobbin winding precision through accurate position control.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Force

If approximate positioning is used, then device complexity is low, but contact force control between bobbin and drive roller is imprecise

Engineering Contradiction:

Improvecontact force controlVSAvoidpositioning system complexity

Core Design Contradiction:

ForceVSDevice complexity

Solution Approach 1:

The patent uses feedback from distance measurements to control contact force between the bobbin and drive roller. By precisely determining the actual distance and calculating the deviation from target distance, the system adjusts the creel position to achieve the correct contact force. This feedback-based approach provides precise force control without requiring complex mechanical force adjustment mechanisms.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

Manual force adjustment is replaced with automated position control. The drive roller system, controlled by the control unit, automatically positions the creel to achieve the desired contact force based on measured distances. This substitution provides precise force control through electronic control rather than complex mechanical force adjustment devices.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP2810908B1Method for adjusting a rotation angle position of a coil frame which holds a coil tube in a rotatable manner and textile machine for producing coils with multiple coil points

Publication Date: 2017.03.22 SAURER GERMANY GMBH & CO KG

AI summary

PROBLEM TO BE SOLVED: To improve a property for adjustment between a package frame and a drive roller in a take-up part of a textile machine for manufacturing a package.SOLUTION: A method for adjusting a turn angle position of a package frame 10 for holding a package wound pipe 17 with respect to a drive roller 11 for driving the package wound pipe 17 in a take-up part 1 of a textile machine 3 for manufacturing a package 2, in which an actual interval between the package wound pipe, which is held onto the package frame at 0-position in order to adjust a basic position of a target rotational angle of the package frame with respect to the drive roller in the take-up part, and a measurement position, at which operational contact between the package wound pipe and the drive roller is detected, is calculated, and if there is a difference between the calculated actual interval and a target interval value which is preset between the package wound pipe 17 and the drive roller 11, a correction value is calculated, and the calculated correction value is used for a subsequent taking-up process.