Air-jet weaving batten drive with servomotors and leaf springs
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Solution Overview
Problem
Existing weaving machines for producing leno fabrics face issues with high energy consumption and maintenance requirements due to flexible toothed belt gears, high moment of inertia, and vibrations, which affect performance.
Innovation Solution
The use of individual servomotors with controllably variable angular speed for both the beating-up and shedding mechanisms, coupled with energy recuperative members, such as leaf springs, to reduce energy intensity and increase performance while maintaining energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If flexible toothed belt gears and countershafts are used to drive the batten, then the batten can be driven, but high passive resistances, greater play and generated vibrations occur
Solution Approach 1:
The patent replaces the traditional mechanical toothed belt gear and countershaft drive system with a direct servomotor drive system. The servomotor directly drives the batten through a crankshaft mechanism, eliminating the intermediate flexible belt gears and countershafts that generate vibrations and passive resistances. This substitution of mechanical transmission components resolves the contradiction by maintaining drive capability while eliminating harmful vibrations and resistances.
2Power
If flexible toothed belt gears and countershafts are used, then the batten can be driven, but higher number of rotary bearings and maintenance requirements occur
Solution Approach 1:
The patent extracts and removes the flexible toothed belt gears, countershafts, and associated rotary bearings from the drive system. By taking out these components, the system eliminates the maintenance requirements associated with bearing lubrication and gear wear. The simplified direct servomotor drive requires significantly fewer maintenance interventions, resolving the contradiction between drive capability and ease of repair.
3Use of energy by moving object
If a batten with reduced moment of inertia is used, then energy consumption is reduced, but the batten requires more precise control
Solution Approach 1:
The patent employs servomotors with closed-loop feedback control systems that continuously monitor and adjust the batten's movement. This feedback mechanism provides precise control over the batten's position and velocity, compensating for the reduced moment of inertia. The feedback system ensures accurate operation while maintaining low energy consumption, resolving the contradiction between energy efficiency and control precision.
4Use of energy by moving object
If individual servomotors with variable angular speed are used for both mechanisms, then energy consumption is reduced and performance is increased, but device complexity increases
Solution Approach 1:
The patent employs identical servomotor units for both the beating-up mechanism and the shedding mechanism, creating a universal drive component that performs multiple functions. This standardization reduces overall system complexity despite using individual drives for each mechanism, as the same servomotor design can be replicated and interchangeably used. The multi-functionality approach resolves the contradiction by maintaining energy efficiency and performance while minimizing complexity through component standardization.
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 configuration reduces energy consumption and increases performance by minimizing vibrations and maintenance needs, enhancing the efficiency of the weaving machine's drive system.
Implementation Method 1
the heald rod is associated with recuperative members of the energy recuperation system of the shedding mechanism. The recuperative member of the shedding mechanism is preferably formed by a pair of leaf springs arranged one above the other
Data Source
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AI summary
The invention relates to an air-jet weaving machine for producing leno fabrics comprising a beating-up mechanism (1) and a shedding mechanism (2), whereby the beating-up mechanism (1) comprises a weaving reed (11), mounted on a stringer (121) of a batten (12), and a batten (12) which is mounted on the frame (3) of the weaving machine by means of at least two flexible members (122) of the system of energy recuperation of the beating-up mechanism (1) arranged on two planar surfaces, between which there is a spacing in the direction of the movement of the stringer (121) of the batten (12) between its insertion position and beating-up position. The beating-up mechanism (1) is associated with an individual drive controlled in the electric cam mode and the shedding mechanism (2) is associated with an individual drive controlled in the electric cam mode, whereby the shedding mechanism (2) is associated with recuperative members (6) of the energy recuperation system of the shedding mechanism (2).