Spindle Brake Device With Separation Roller For Wear Reduction
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Solution Overview
Problem
Conventional spindle brake devices for spinning machines require complex and large-sized structures to separate the spindle belt from the spindle and press the brake shoe, leading to increased wear and operational complexity.
Innovation Solution
A spindle brake device with a simplified configuration featuring a movable brake body, a separation roller unit, and a brake shoe, where the separation roller unit separates the spindle belt from the spindle, and the brake shoe is pressed against the spindle by the tension of the spindle belt, allowing for efficient stopping of spindle rotation without applying a large load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a brake shoe is pressed against a rotating spindle with the spindle belt mounted over the spindle, then the spindle rotation can be stopped, but a large load is applied to the spindle and friction occurs between the spindle and spindle belt, accelerating wear
Solution Approach 1:
The patent introduces a separation roller as an intermediary component between the spindle belt and the spindle. When the brake is activated, the separation roller inserts itself between the spindle belt and the spindle, allowing the brake shoe to press against the spindle without the belt being in direct contact. This mediator prevents friction between the belt and spindle during braking, reducing wear on both components while maintaining the ability to stop spindle rotation effectively.
2Object-affected harmful factors
If a separation roller is used to separate the spindle belt from the spindle during braking, then wear is reduced, but the structure becomes complicated and large-sized
Solution Approach 1:
The patent combines the separation roller function with the existing brake mechanism by integrating the separation roller into the brake shoe assembly. The separation roller is positioned such that it is automatically deployed when the brake shoe is actuated, merging two functions (separation and braking) into a single integrated component. This reduces the number of separate parts and simplifies the overall structure while maintaining the wear-reduction benefit.
Solution Approach 2:
The separation roller is designed to be automatically deployed by the braking action itself. When the brake shoe is pressed against the spindle, the mechanical action automatically positions the separation roller between the belt and spindle without requiring additional actuators or complex control mechanisms. The braking force itself serves to activate the separation function, eliminating the need for separate control systems.
3Object-affected harmful factors
If the brake shoe is pressed against the spindle with additional mechanisms to avoid large load, then wear is reduced, but the pressing mechanism becomes more complex
Solution Approach 1:
The separation roller serves as a mediator that changes the contact mechanics during braking. By inserting the roller between the spindle belt and the spindle, the pressing force is distributed differently - the brake shoe presses against the roller rather than directly against the spindle with the belt in contact. This intermediary arrangement reduces the harmful concentrated load and friction on the spindle while maintaining effective braking capability.
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 reduces wear on the spindle and spindle belt, simplifies the brake shoe pressing mechanism, and enables quick yarn piecing operations by allowing the operator to stop and resume spindle rotation without additional tools, thereby minimizing productivity losses due to yarn breaks.
Implementation Method 1
the brake shoe is pressed against the one of the spindles by a tension of the spindle belt
Data Source
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AI summary
A spindle brake device (20) of a spinning machine for stopping rotation of spindles of the spinning machine includes a brake body (21, 121, 221) that is movable in a width direction (Y) of a spindle rail (10) which has a braking standby position (P1) and a braking actuating position (P2); a separation roller unit (22); and a brake shoe (23). When the brake body (21, 121, 221) is disposed at a braking standby position (P1), the separation roller unit (22) is located separated from the spindle belt (12), and when the brake body (21, 121, 221) is disposed at a braking actuating position (P2), the separation roller unit (22) separates the spindle belt (12) from one of the spindles (11), and the brake shoe (23) is pressed against the one of the spindles (11) by a tension of the spindle belt (12).