Blade-holder head lubrication circuit for textile cutting
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Solution Overview
Problem
Existing blade-holder heads for cutting textile or cloth materials on automatic spreading tables face challenges in effectively supporting, guiding, and lubricating cutting blades, especially when the blade has a revolving part, making it difficult to maintain cutting efficiency and manage lubrication fluid delivery.
Innovation Solution
A blade-holder head with a guide support system using rollers and a lubrication circuit that includes a coiled tube to efficiently lubricate the cutting end of the blade, while minimizing the overall dimensions and weight, allowing for easy assembly and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a revolving rotor is used to permit 360° rotation of the blade for directional cutting, then the adaptability of the cutting head is improved, but the difficulty of conveying lubricating fluid to the cutting end of the blade increases
Solution Approach 1:
The lubrication system is segmented into multiple components: a lubrication chamber in the stationary outer sleeve, a coiled lubrication tube extending through the rotor, and direct delivery to the cutting end. This segmentation allows the lubrication function to be maintained independently of the rotor's rotational movement.
Solution Approach 2:
The coiled lubrication tube acts as an intermediary element that bridges the stationary lubrication chamber and the rotating cutting blade. The tube's coiled configuration allows it to accommodate rotor rotation while maintaining continuous lubrication fluid delivery to the cutting end.
2Reliability
If the blade-holder head is designed with comprehensive support and guide means, then the reliability of blade support and guidance is improved, but the weight and overall dimensions of the head increase
Solution Approach 1:
The stationary outer sleeve serves multiple functions: it provides the lubrication chamber, acts as a structural support element, and guides the rotor's rotation. The rotor body simultaneously provides structural support, guides the blade through its hollow guide unit, and houses the lubrication tube. This multi-functionality reduces the need for separate dedicated components.
Solution Approach 2:
The hollow guide unit is nested within the rotor body, and the lubrication tube is nested within the hollow guide unit. This nested arrangement consolidates multiple support and guidance functions into a compact structure, reducing overall head dimensions and weight while maintaining reliability.
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 provides effective support and lubrication for cutting blades, enhancing cutting efficiency and reducing the overall height of the head, making it more compact and lightweight, with improved ease of assembly and maintenance.
Implementation Method 1
Between the former and the latter are placed friction reduction means, e.g., at least a ball bearing 30
Implementation Method 2
A blade-holder head (1) according to the invention as a whole... has a lubrication circuit suitable for lubricating the cutting end of the blade (2)
Data Source
AI summary
A blade-holder head for a machine for cutting textile materials including blade guide means suitable for supporting a cutting blade with the possibility of alternate movement along a blade axis, a guide support body, to which are fixed said first blade guide means, a presser disc connected underneath said support body with the possibility of alternate axial movement, a command unit mounted on an upper crosspiece of the guide support body and comprising a rotor body and a stationary outer sleeve. The blade-holder head has a lubrication circuit suitable for lubricating the cutting end of the blade. Said lubrication circuit comprises an entrance hole made in the stationary outer sleeve and suitable for coupling with a lubricant inlet fitting, a hermetically sealed annular lubrication chamber made in the outer sleeve in fluidic communication with said entrance hole, a first lubrication duct made in the rotor body and in fluidic communication with said annular chamber, a second lubrication duct in fluidic communication with said first duct and which extends through the guide support body and, a third lubrication duct made in the presser disc in fluidic communication with said second duct and coming out next to the cutting end of the blade,