Press Roller Positioning for Cone Warping
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Solution Overview
Problem
The existing cone warping devices with a dividing device having a handle face limitations in controlling the winding structure, particularly when using a press roller, as it often collides with the handle, leading to damage and restricting the ability to influence the lap build-up and density uniformly.
Innovation Solution
Incorporating a press roller with a positioning drive and movement limiter that prevents radial inward movement beyond a certain point, allowing the press roller to engage only when the radial thickness exceeds the handle's extent, and adjusting the offset speed to manage lap density and diameter control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a press roller is applied to the lap during winding to influence the build-up and increase density, then the lap uniformity and density control are improved, but the press roller collides with the handle of the dividing device, leading to damage and operational interruptions
Solution Approach 1:
The press roller is equipped with a positioning drive that enables it to move dynamically between different radial positions. The roller can be shifted radially inward to engage the lap for density control, and radially outward to clear the dividing device handle. This dynamic positioning resolves the contradiction by allowing the press roller to exert influence on lap uniformity only when needed, while avoiding collisions that would damage reliability
Solution Approach 2:
Before the dividing device handle enters the potential collision zone, the positioning drive preemptively shifts the press roller radially outward to a safe position. This preliminary action prevents the collision before it can occur, while still allowing the press roller to influence lap density during the winding process when the handle is in safe positions
2Ease of operation
If a dividing device with a handle is used to facilitate automated shifting, then the ease of operation is improved, but the handle protrudes radially and prevents the application of a press roller, limiting the ability to influence lap build-up
Solution Approach 1:
The press roller's radial position is made dynamic through the positioning drive, allowing it to adapt its position based on the presence of the dividing device handle. When the handle is in the engagement zone, the roller positions outward; when the handle is clear, the roller positions inward to apply pressure. This dynamic adaptation enables both automated shifting functionality and press roller application to coexist
Solution Approach 2:
The solution adds a radial dimension to the press roller's positioning capability. Instead of the press roller being fixed in one radial position, it can move along the radial dimension to either engage the lap or clear the handle. This dimensional freedom allows the system to accommodate both the dividing device handle and the press roller without compromise
3Reliability
If the press roller is limited to a predetermined axial dimension to avoid collision, then the reliability is improved, but the bands of different widths cannot be properly processed, reducing adaptability
Solution Approach 1:
Rather than fixing the press roller's axial position within a predetermined dimension to prevent collision, the positioning drive enables the roller to move dynamically in the radial direction. This allows the press roller to accommodate bands of different widths by adjusting its radial position, while maintaining reliability by clearing the handle when needed
Data Source
Figure 1~2
Figure 3~4
AI summary
A yarn layer (6) is produced by winding up the warp belt comprised with thread sheet to a warping drum (2). A handle (11) having a predetermined radial direction length projecting out of the yarn layer divides the yarn layer. A pressure roller (9) is made to abut the yarn layer when the yarn layer reaches the radial direction thickness which corresponds to the radial direction length of the handle. The warp belt is displaced at a preset displacement rate. The displacement rate is changed when the pressure roller abuts the yarn layer. An independent claim is included for sectional warping machine.