Continuous Press Pressure Distribution Plate Arrangement
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Solution Overview
Problem
Existing continuous presses for wood-based panels face challenges in maintaining consistent press gap and pressure distribution, leading to fluctuations that affect the quality and flexural strength of the final product, particularly in the calibration zone, and result in excessive glue usage.
Innovation Solution
The pressure distribution plates with supports are arranged over more than 75% of the press plates' length, including the soaking zone, to optimize process control and reduce glue usage by implementing the oscillation principle across the entire press, not just the calibration zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If pressure distribution plates with supports are only arranged in the calibration zone, then the device complexity is reduced, but press gap fluctuations and pressure distribution inconsistencies occur leading to reduced manufacturing precision
Solution Approach 1:
The pressure distribution plates are segmented into multiple sections arranged at different locations along the press, including the soaking zone and calibration zone. Each segment independently contributes to pressure distribution, allowing the system to maintain precision without requiring a single complex continuous structure
Solution Approach 2:
The support lines on the press plate are arranged at angles offset from the vertical direction, introducing a spatial dimension to the support configuration. This angular arrangement creates an oscillation effect that compensates for pressure fluctuations and improves press gap consistency
2Reliability
If the oscillation principle is implemented only in the calibration zone, then the device complexity is minimized, but pressure and thickness fluctuations affect the final product quality
Solution Approach 1:
The oscillation principle is applied in advance in the soaking zone before the calibration zone. This preliminary application of the oscillation principle pre-stabilizes the press gap and pressure distribution, preventing fluctuations from developing and affecting final product quality
Solution Approach 2:
The oscillation principle is implemented continuously across multiple zones (soaking zone and calibration zone) rather than discontinuously in isolated areas. This continuous application maintains stable press gap and pressure distribution throughout the entire pressing process, ensuring consistent product quality
3Manufacturing precision
If more glue is used to compensate for press gap fluctuations, then the manufacturing precision is maintained, but the loss of substance increases
Solution Approach 1:
The oscillation principle creates a self-regulating feedback mechanism where the angled support lines automatically compensate for pressure and thickness fluctuations. As the press operates, the oscillation effect continuously adjusts to maintain optimal press gap, eliminating the need for excessive glue application to compensate for inconsistencies
Data Source
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AI summary
The press has multiple rows of cylinder piston arrangements (6) attached to upper and lower transverse beams of press frames (3), and upper and lower press plates (1, 2). One of the plates facing away from the arrangements is attached to the beams by interconnecting pressure distributing plates (7). Supports (8) i.e. insulating supports, are fastened at the distributing plates between the frames. The distributing plates with the supports are arranged or distributed in an operating direction (A) over a region, which corresponds to more than 75 percentage of length of the press plates. An independent claim is also included for a method for manufacturing a wooden material board such as a fiber board and chip board.