Double Bevel Circular Knitting Machine Needle Arrangement
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Solution Overview
Problem
Conventional double knit circular knitting machines suffer from uneven loop lengths, low elasticity, and inability to effectively knit double-faced reversible and irregular shaped fabrics due to the reciprocating motion of horizontal and vertical needles causing uneven force distribution.
Innovation Solution
A double bevel type double-knit circular knitting machine with an inner and outer annular needle cylinder holder sloping at 50°∼60°, facilitating symmetrical needle movement and the use of sinkers to hold down the fabric, allowing for improved tuck and withdrawal operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If horizontal and vertical needles reciprocate in different directions during knitting, then the knitting process can be performed, but uneven loop lengths and low elasticity occur due to uneven force distribution
Solution Approach 1:
The patent applies asymmetry by transitioning from orthogonal horizontal and vertical needle arrangements to a double bevel symmetrical arrangement where both needle sets are inclined at the same angle (50°-60°) relative to the horizontal plane, creating balanced force distribution while maintaining operational capability
Solution Approach 2:
The patent changes the geometric parameters of the needle holder arrangement by introducing a specific inclination angle range (50°-60°) for both needle sets, optimizing the force distribution and loop formation characteristics to achieve uniform loop lengths and improved elasticity
2Device complexity
If conventional horizontal and vertical needle holders are used, then the machine structure is simple, but the fabric elasticity and evenness are poor
Solution Approach 1:
The invention transforms the asymmetric orthogonal arrangement into a symmetrical double bevel configuration, where both needle holders are inclined at equal angles, creating balanced mechanical forces that improve fabric elasticity without significantly increasing structural complexity
3Adaptability or versatility
If conventional double knit circular knitting machine is used, then basic knitting can be performed, but double-faced reversible and irregular shaped fabrics cannot be effectively produced
Solution Approach 1:
The double bevel needle holder design provides multi-functionality by enabling the machine to effectively produce various fabric types including double knit fabrics, double-faced reversible fabrics, and irregular shaped fabrics, significantly enhancing adaptability while maintaining high manufacturing precision
Solution Approach 2:
The symmetrical double bevel configuration allows flexible adaptation to different knitting patterns and fabric requirements, enabling effective production of complex fabric types that conventional asymmetric designs cannot achieve
Data Source
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AI summary
A double bevel type double-knit circular knitting machine includes an inner annular needle cylinder holder (10) and an outer annular needle cylinder holder (20) configured to show a double bevel profile, and inner base member (11) and an outer base member (21) respectively affixed to the inner annular needle cylinder holder (10) and the outer annular needle cylinder holder (20) to hold sector-shaped inner cam adjustment members (12) and outer cam adjustment members respectively (22), inner cam blocks (13) and outer cam blocks (23) respectively affixed to the inner base member (11) and the outer base member (21), and inner (14) and outer needles (24) respectively arranged between the inner annular needle cylinder holder (10) and the inner cam blocks (13) and between the outer annular needle cylinder holder (20) and the outer cam blocks (23) and reciprocating in respective needle tracks in the inner cam blocks (13) and the outer cam blocks (23) to perform a knitting process.