Splicer Thread End Resolution via Retraction Device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing thread end resolution methods for splicers face challenges in reliably sucking in rigid yarns without imposing design restrictions on the splicer components, as they often require the cutting device and dissolving tube to be in close proximity, limiting design freedom and failing to ensure reliable suction of even more rigid threads.
Innovation Solution
A method that involves cutting the thread to length and applying a suction flow to a holding and opening tube, while using a thread retraction device to position the thread end within the tube's intake area, allowing the suction flow to pull the thread end into the tube, and then using a dissolving flow to unravel it, without the need for the cutting device and dissolving tube to be directly adjacent, thus optimizing the distance between components and ensuring reliable suction of rigid threads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cutting device and dissolving tube are placed in close proximity to enable reliable suction of rigid yarns, then the suction reliability is improved, but the design freedom and structural flexibility of the splicer are restricted
Solution Approach 1:
The thread retraction device performs preliminary action by positioning the thread end in the intake area of the dissolving tube before the suction flow is applied. This preliminary positioning ensures that even rigid yarns are correctly oriented for suction, eliminating the need for close proximity between the cutting device and dissolving tube while maintaining suction reliability.
Solution Approach 2:
The thread retraction device acts as an intermediary between the cutting device and the dissolving tube. It mediates the thread's position, bringing the thread end to the appropriate location for suction without requiring direct adjacency between the cutting and dissolving components, thus preserving design freedom while ensuring reliable operation.
2Reliability
If a strong suction flow is applied to overcome the flexural rigidity of rigid yarns, then the suction capability is improved, but the thread end resolution quality deteriorates due to interference with the dissolving flow
Solution Approach 1:
The thread retraction device performs preliminary positioning of the thread end in the intake area before suction begins. This ensures that the suction flow only needs to draw the thread in without needing to overcome excessive flexural rigidity, allowing for gentler suction that does not interfere with thread end resolution quality.
Solution Approach 2:
The system changes the parameter of thread position by using the retraction device to place the thread end in the optimal location within the intake area. This parameter change allows the suction flow to be applied more effectively and gently, maintaining both suction capability and resolution quality.
3Productivity
If the thread is sucked in immediately after cutting without retraction, then the process speed is improved, but rigid yarns cannot be reliably sucked in due to insufficient loop formation
Solution Approach 1:
The thread retraction device performs a quick preliminary action to position the thread end in the intake area before suction begins. This brief retraction step ensures that rigid yarns are correctly positioned for immediate effective suction, maintaining process speed while significantly improving suction reliability for rigid materials.
Solution Approach 2:
The system replaces the traditional loop-formation mechanism with a direct retraction-and-positioning mechanism. Instead of relying on the thread to naturally form loops during suction, the retraction device mechanically positions the thread end in the correct location, enabling immediate effective suction without the time-consuming loop formation process.
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 method allows for reliable suction of even rigid threads into the opening tube without restricting the splicer's design, enabling optimal thread end preparation and connection, as the thread retraction device positions the thread end for immediate suction, ensuring consistent and effective thread end resolution.
Implementation Method 1
applying a suction flow to the holding and opening tube... sucking in the suture end through the suction flow adjacent to the holding and dissolving tube Suction flow into the holding and dissolving tube
Implementation Method 2
dissolution of the suture end by a dissolving flow applied in the holding and dissolving tube at the latest now
Data Source
Figure 1
Figure 2
Figure 3a~3f
AI summary
The present invention relates to a method for thread end dissolution for a splicer comprising the steps: (i) cutting the thread to length by a cutting device of the splicer, wherein the thread is located in the intake area of a holding and dissolution tube of the splicer, (ii) applying a suction flow to the holding and dissolution tube at the latest after the thread has been cut to length, (iii) drawing the thread end into the holding and dissolution tube by the suction flow applied to the holding and dissolution tube, (iv) dissolution of the thread end by a dissolution flow applied in the holding and dissolution tube at the latest now, characterized in that the following step is inserted between steps (ii) and (iii): (ii.A) conveying the thread end into the intake area of the holding and dissolution tube by the interaction of suction flow and a thread retraction device.Furthermore, the invention relates to a device for carrying out the method and a computer program for loading onto a program-controlled device for carrying out the method.