Wooden Material Board Impregnating Device Suction System
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Solution Overview
Problem
Existing wood-based panel finishing devices consume excessive quenching liquid due to uneven penetration and warping issues, leading to inefficient use and high costs.
Innovation Solution
A wood-based panel finishing device with a suction system that applies negative pressure through suction strips with a small suction chamber cross-section, allowing precise application of treatment liquid, reducing the need for excess liquid and preventing warping, using a combination of suction and application bars to ensure uniform coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a negative pressure is applied to the board and tempering liquid is applied to the opposite side, then the penetration of the tempering liquid into the wood-based panel is accelerated, but the area of the wood-based material board impregnated with the treatment liquid has an expansion that changes in the thickness direction, resulting in a trapezoidal cross-section and requiring more tempering liquid than necessary
Solution Approach 1:
The invention inverts the conventional approach by applying the tempering liquid to the same side from which the negative pressure is applied, rather than to the opposite side. This reversal allows the liquid to be drawn in uniformly through the negative pressure without causing expansion in the thickness direction, thus maintaining a rectangular cross-section and reducing liquid consumption.
Solution Approach 2:
The invention applies the tempering liquid locally to the specific area requiring treatment on the same side as the negative pressure application, rather than applying it globally to the opposite side. This localized application, combined with the negative pressure, ensures precise penetration control and prevents unnecessary liquid consumption.
2Shape
If more tempering liquid is used to obtain an annealing area with an essentially rectangular cross section, then the desired shape is achieved, but the consumption of tempering liquid increases
Solution Approach 1:
By inverting the application side to match the negative pressure side, the invention achieves uniform liquid distribution that naturally forms a rectangular cross-section without requiring excess liquid. The negative pressure draws the liquid evenly across the treatment area, preventing the trapezoidal expansion that occurs with conventional opposite-side application.
3Quantity of substance
If a large suction chamber cross-section is used, then more liquid can be processed, but the suction chamber takes longer to be evacuated
Solution Approach 1:
The invention segments the suction chamber into multiple smaller chambers, each with its own negative pressure application. This segmentation allows each small chamber to be evacuated quickly while collectively processing large quantities of liquid across multiple zones, thus resolving the contradiction between chamber size and evacuation speed.
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 device allows for efficient and rapid treatment with minimal liquid consumption, enabling the use of thicker, more viscous liquids and maintaining a rectangular cross-section, reducing waste and improving processing speed.
Implementation Method 1
a suction device (16) for applying a negative pressure to a surface of the wood-based panel (14) that lies on the bearing surface (A)
Data Source
Figure 1
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AI summary
The device (10) has a support (12) i.e. metal frame, with a bearing surface (A) for bearing of a wood-based sheet (14), and a suction device (16) for applying a negative pressure on a surface of the sheet. The suction device has a suction bar (18.1) linearly running in sections. A sealing (24) held at a side of the bar is turned towards the bearing surface. The bar forms an evacuation suction cavity (26) in the sheet. The cavity has a suction surface turned towards the sheet. An application head (42) applies a tempering liquid (40) to a tempering strip (38). An independent claim is also included for a method for manufacturing a wood-based sheet.