Displaceable Bobbin Table for Flat Knitting Machine Maintenance Access
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Solution Overview
Problem
The rigid arrangement of bobbin holders in modern flat knitting machines restricts access to the rear needle beds and machine room, making maintenance and repair time-consuming and costly due to the need to remove all bobbin holders, which increases downtime.
Innovation Solution
The flat knitting machine design allows machine elements with bobbin holders to be displaced horizontally, vertically, or pivotally relative to the machine body, enabling complete accessibility of the machine room without detaching the elements, thus eliminating the need to remove yarn spools and reducing downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If bobbin holders are firmly connected to the bobbin table or holding devices, then the position is stable and secure, but the position cannot be changed without great effort and maintenance access is severely restricted
Solution Approach 1:
The bobbin table is divided into multiple displaceable bobbin table parts (first bobbin table part, second bobbin table part) that can be independently moved relative to each other and the machine body. This segmentation allows individual parts to be shifted to provide access to the machine room while maintaining the overall structure.
Solution Approach 2:
The bobbin table parts are designed to be displaceable rather than fixed, allowing them to be moved horizontally and/or vertically. This dynamic capability enables the parts to be repositioned during maintenance operations to provide access to the machine room, then returned to their original positions for normal operation.
2Quantity of substance
If additional bobbin holders are mounted on mobile frames, then more bobbin holders are available, but they severely limit the space around the machine and get in the way during repair
Solution Approach 1:
Multiple bobbin holders are integrated directly onto the displaceable bobbin table parts, combining the functions of holding multiple bobbins and providing displaceable access. This eliminates the need for separate mobile frames while maintaining the ability to move the bobbin holders for maintenance access.
3Ease of repair
If all bobbin holders are removed to service the machine, then complete access to the machine room is achieved, but the process is very time-consuming and expensive
Solution Approach 1:
Instead of removing all bobbin holders, only the specific bobbin table part that obstructs access to the machine room is displaced. This partial displacement provides sufficient access for maintenance while leaving other bobbin holders in place, significantly reducing the time and effort required.
Solution Approach 2:
The invention applies partial action by moving only the necessary portion of the bobbin table (one or specific parts) rather than all bobbin holders. This provides adequate access for maintenance work without the excessive effort and time required to remove and relocate all bobbin holders completely.
4Ease of repair
If the machine element is moved out of the geometry of the flat knitting machine, then complete accessibility of the machine room is achieved, but the element must be completely detached and set aside
Solution Approach 1:
The bobbin table parts are designed with displacement capabilities that allow them to be moved out of the normal machine geometry during maintenance, then easily returned to their original positions. The displacement mechanism (such as guides and locking features) simplifies the detachment and reattachment process, reducing device complexity.
Data Source
AI summary
The knitting machine (100) has main portion (120) that is provided with engine room (110) in accessible area. The machine elements (10,20) in main portion are moved relatively with respect to one another without removing completely from the machine so as to form regions (130) of engine room such as rear needle bed, rear thread guide, and maintenance and repair access area.