Revolving Fabric Rolling Rod with Adjustable Pressing Arm
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Solution Overview
Problem
Conventional fabric rolling machines for circular knitting machines experience inconsistent fabric quality between the initial and later stages of rolling, resulting in waste due to varying yarn density and thickness, as the fabric rolling rod's weight and pressure increase, leading to suboptimal fabric utilization.
Innovation Solution
The fabric rolling apparatus features two revolving arms hinged on the side boxes, with one end rotating about the bottom side and the other end connected to the fabric rolling rod, allowing the fabric press component to be adjusted by flipping upward as the fabric amount increases, maintaining consistent fabric quality through adjustable pressure on the transmission rod set.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the fabric rolling rod continuously accumulates fabric during rolling operation, then the rolling capacity increases, but the fabric pressing force becomes inconsistent causing varying yarn density and thickness
Solution Approach 1:
The patent applies the dynamics principle by making the fabric pressing rod movable rather than fixed. The pressing rod can dynamically adjust its position and pressing force in response to the accumulating fabric weight. As fabric accumulates on the rolling rod, the increased weight automatically adjusts the pressing force to maintain consistent fabric density throughout the rolling process.
2Device complexity
If the fabric rolling rod is fixed in position, then the device structure is simple, but the fabric pressing force cannot be adjusted leading to quality inconsistency
Solution Approach 1:
The patent implements the self-service principle by designing a system where the accumulating fabric itself provides the adjustment mechanism. As fabric weight increases on the rolling rod, it automatically adjusts the pressing rod's position and force without requiring external control systems, complex mechanisms, or additional energy input. The system uses the fabric's own weight to maintain optimal pressing conditions.
3Manufacturing precision
If the fabric rolling rod moves vertically to accommodate increasing fabric weight, then the fabric pressing force can be maintained, but the device complexity increases
Solution Approach 1:
The patent applies the anti-weight principle by using the accumulating fabric weight itself as the counterbalancing force. The fabric weight that would normally be a burden is instead utilized to maintain consistent pressing force on the fabric during rolling. This eliminates the need for separate counterweight mechanisms or complex force regulation systems.
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 solution ensures consistent yarn density and fabric thickness across the entire roll, reducing waste and improving fabric utilization by dynamically adjusting the fabric press component to match the increasing weight and circumference of the rolled fabric.
Implementation Method 1
each revolving arm has a revolving end hinged on the bottom side of the side box and a holding end connected to the fabric rolling rod higher than the revolving end
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
There is disclosed a fabric rolling apparatus driven by a circular knitting machine to revolve and receive a knitted fabric (70). The fabric rolling apparatus comprises a bracket (10), a transmission rod set (20) located on the bracket (11) and a revolving fabric collection mechanism (30). The bracket (10) includes two side boxes (11) corresponding to each other and a drive mechanism (12) located in each side box (11). Each side box (11) has a top side (111) and a bottom side (112). The drive mechanism (12) drives the transmission rod set (20) to guide movement of the fabric (70). The revolving fabric collection mechanism (30) includes two revolving arms (31) hinged respectively on the side boxes (11) and a fabric rolling rod (32) driven by the transmission rod set (20) to revolve and roll the fabric (70). Each revolving arm (31) has a revolving end (311) hinged on the bottom side (112) of the side box (11) and a holding end (312) connected to the fabric rolling rod (32) at an elevation higher than the revolving end (311).