Vacuum Nose Roll Pressure Zoning for Stable Material Transfer
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Solution Overview
Problem
In high-speed manufacturing processes, transferring materials and article components between conveyor systems often results in undesired movement, skewing, or dislodgment due to challenges in localizing vacuum pressure, leading to production errors and malfunctions.
Innovation Solution
A vacuum conveyor system with distinct vacuum chambers and adjustable pressure differentials, featuring a porous belt member and a nose roll assembly with apertures and chamfered edges, ensures consistent material positioning by creating controlled suction forces across the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single vacuum source is used for the entire conveyor system, then device complexity is reduced, but manufacturing precision deteriorates due to inability to localize vacuum pressure at transition zones
Solution Approach 1:
The conveyor system is divided into discrete vacuum chambers (first vacuum chamber for main conveyor, second vacuum chamber for transfer conveyor) that can be independently controlled. This segmentation allows different vacuum pressure levels to be applied in different zones, enabling precise material positioning during transitions while using separate vacuum sources for each chamber.
Solution Approach 2:
Different vacuum pressure levels are applied to different spatial zones of the conveyor system. The first vacuum chamber maintains a first vacuum pressure level for stable material holding, while the second vacuum chamber maintains a second vacuum pressure level optimized for transfer operations. This local differentiation of vacuum quality enables both precision positioning and smooth transitions.
2Productivity
If high-speed manufacturing processes are used, then productivity increases, but reliability deteriorates due to air getting under leading edges causing components to flip or fly off
Solution Approach 1:
The nose roll assembly with its specific geometry (including recesses and tapered sections) is designed to preemptively manage air flow and pressure distribution before air can get under the leading edge of materials. The chamfered edges and aperture configuration create controlled pressure gradients that prevent air infiltration at high speeds, maintaining material stability during rapid transitions.
Solution Approach 2:
The nose roll assembly acts as an intermediary element between the first and second vacuum chambers during material transfer. It mediates the transition by providing a controlled interface where air pressure and vacuum forces are balanced, preventing air from getting under material leading edges while enabling smooth high-speed transfer between conveyor sections.
3Manufacturing precision
If discrete vacuum chambers are used to improve material positioning, then manufacturing precision improves, but device complexity increases due to multiple vacuum chambers and sources
Solution Approach 1:
Multiple vacuum chambers and sources are merged into a coordinated system where the first vacuum chamber (with its nose roll assembly) and second vacuum chamber operate in sequence with synchronized vacuum control. This merging allows precise material positioning through the first chamber while the second chamber prepares for transfer, achieving high precision without proportionally increasing overall system complexity through integrated control.
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 system effectively maintains material and component positioning during transitions between conveyor systems, reducing errors and ensuring smooth high-speed manufacturing processes.
Implementation Method 1
vacuum pressure to help keep materials and article components in position on the conveyer
Implementation Method 2
adjustable pressure differentials, featuring a porous belt member and a nose roll assembly with apertures and chamfered edges, ensures consistent material positioning by creating controlled suction forces
Data Source
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AI summary
Apparatus for transporting material in a manufacturing process are disclosed. A disclosed vacuum conveyer system may comprise a vacuum box extending between a first box end and a second box end, the vacuum box comprising a vacuum box vacuum chamber, a nose roll disposed adjacent to the first box end, the nose roll comprising a nose roll vacuum chamber, and a foraminous member disposed about both of the nose roll and the vacuum box. The vacuum system may further comprise a first airflow conduit connecting the vacuum box vacuum chamber to a vacuum source and a second airflow conduit connecting the nose roll vacuum chamber to the vacuum source.