Crank-Driven Yarn Laying for Energy-Efficient Winding
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Solution Overview
Problem
Existing yarn laying devices for textile machines, particularly spinning and winding machines, are inefficient due to the need to decelerate and re-accelerate the yarn guide at reversal points, consuming additional energy.
Innovation Solution
The yarn laying device incorporates a crank mechanism that converts the rotation of a crank into a periodic movement of the laying element, allowing the laying element to change direction mechanically without the need for deceleration and re-acceleration by a drive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a yarn guide is periodically moved back and forth in front of the bobbin using conventional traversing devices, then the yarn can be wound onto cross-wound bobbins, but the yarn guide must be decelerated at the reversal points and then accelerated again, consuming additional energy
Solution Approach 1:
The patent applies the dynamics principle by using a crank mechanism to convert continuous rotational motion into periodic reciprocating motion of the laying element. The crank mechanism allows the laying element to change direction automatically at the end of each stroke without requiring deceleration and re-acceleration by the drive system. The drive can maintain constant rotational speed while the laying element naturally reverses direction through the mechanical geometry of the crank, thereby reducing energy consumption while maintaining high productivity.
2Ease of operation
If the laying element is decelerated and re-accelerated at reversal points, then the direction of movement can be changed, but this process is inefficient and consumes additional energy
Solution Approach 1:
The patent implements the self-service principle by designing the crank mechanism so that the laying element automatically reverses direction at the reversal points through its own mechanical motion. The continuous rotation of the crank naturally produces the reciprocating motion with automatic direction change, eliminating the need for external control systems to decelerate and re-accelerate the laying element. This self-service mechanism reduces energy loss while maintaining ease of operation.
3Loss of time
If conventional yarn traversing devices are used with deceleration and re-acceleration, then the yarn guide can reverse direction, but the process is time-consuming and reduces overall efficiency
Solution Approach 1:
The crank mechanism converts continuous high-speed rotation into periodic reciprocating motion, allowing the laying element to traverse quickly in one direction and automatically reverse at the endpoints. The mechanical geometry of the crank ensures that direction change occurs smoothly and rapidly at the reversal points without requiring the laying element to slow down significantly, thereby reducing time loss and increasing winding speed and productivity.
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
This design increases energy efficiency by eliminating the need for deceleration and re-acceleration of the laying element at reversal points, while also allowing for higher laying speeds and winding speeds of the yarn.
Implementation Method 1
the drive device has at least one first crank mechanism with a first crank. The first crank mechanism can convert the rotation of the first crank into a periodic movement of the traversing element
Implementation Method 2
The force transmission element can, for example, transmit at least certain portions of the rotation of the crank to the laying element via a pivot joint and a lever
Data Source
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AI summary
The present invention relates to a yarn laying device (6) for a textile machine (2), in particular a spinning or rinsing machine, comprising a laying element (18) which is designed to periodically move a yarn (3) to be wound up over a spool (5), and a drive device (19) for the laying element (18).The invention also relates to a textile machine (2), in particular a spinning or dishwashing machine, having a yarn laying device (6) which comprises a laying element (18) and a drive device (19) for the laying element (18), wherein the laying element (18) is designed to periodically move a yarn (3) to be wound up over a spool (5), as well as to a method for operating a textile machine (2), in particular a spinning or dishwashing machine, wherein a yarn (3) to be wound up is periodically moved over a spool (5) by a laying element (18) of a yarn laying device (6), wherein a periodic movement of the laying element has two reversal points (24) at which the laying element (18) reverses its direction of movement. For the yarn laying device (6), it is proposed that the drive device (19) has at least one first crank drive with a first crank.