Parallel Pneumatic Splicer for Yarn Winding
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Solution Overview
Problem
Existing yarn splicing devices in winding machines are complex and require precise, synchronized movements, making them difficult to control and operate efficiently.
Innovation Solution
A simplified splicer device with a pair of pneumatic cylinders acting in parallel, controlled by a common electrovalve, to clamp and cut yarn ends, ensuring safe and precise splicing with reduced complexity in movements and synchronisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional yarn splicing devices are used, then splicing function is achieved, but device complexity and operational difficulty increase due to multiple synchronized movements
Solution Approach 1:
The patent combines multiple functions (clamping, cutting, and splicing) into a single integrated device that operates with unified control. The splicing device merges the clamping mechanism, cutting mechanism, and splicing chamber into one coordinated unit, eliminating the need for separate synchronized movements of multiple independent components, thus reducing device complexity while maintaining splicing reliability
Solution Approach 2:
The splicing device is designed as a multi-functional unit that can perform clamping, cutting, and splicing operations within a single integrated system. This universal design allows one device to replace multiple specialized devices, reducing overall system complexity while maintaining all necessary splicing functions
2Reliability
If traditional yarn splicing devices with multiple synchronized movements are used, then splicing operations can be performed, but ease of operation deteriorates due to precise coordination requirements
Solution Approach 1:
By merging multiple operations into a single integrated device with unified control, the system eliminates the need for operators to coordinate multiple independent movements. The clamping, cutting, and splicing functions are automatically sequenced within one device, making operation simpler while maintaining reliability
3Device complexity
If simplified splicing device with parallel pneumatic cylinders is used, then operational complexity is reduced, but manufacturing precision requirements increase for synchronized clamping and cutting
Solution Approach 1:
The patent employs pneumatic cylinders to actuate the clamping and cutting mechanisms. Pneumatic systems provide inherent synchronization through shared air supply and pressure equalization, reducing the need for complex mechanical synchronization mechanisms. This approach simplifies device complexity while achieving the necessary precision through pneumatic control characteristics
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 simplifies the splicing process, ensuring accurate and reliable yarn end management, reducing operational complexity and improving efficiency in yarn splicing operations.
Implementation Method 1
suction inlets (9, 10) from the feeding bobbin- and the package-side, respectively
Implementation Method 2
a pair of pneumatic cylinders acting in parallel
Data Source
AI summary
Splicer device (6) for splicing yarns in a winding machine wherein the yarn (2) is fed from the bottom and wound from the top on a package (12) and comprising upper (24) and lower (25) clamping members and upper (28) and lower (29) shear members, wherein the upper clamp and shears are sequentially actuated by an upper actuator (50) which firstly closes the upper clamp and then actuates the upper shears, and wherein also the lower clamp and shears are sequentially actuated by a lower actuator (51) which firstly closes the lower clamp and then actuates the lower shears, said actuators being fed in parallel by a feeding device (76) which is common to the two actuators.