MDF Forming Concept
18Pages

05 | 2011 What is the MDF Forming Station? For the production of MDF (Medium Density Fiber), HDF (High Density Fiber), THDF (Thin HDF) and insulation boards, the Dieffenbacher fiber board forming station stands for the forming of an accurate and homogeneous mat for highest quality standards. Due to a special discharge and dissolving system combined with the adapted spreading head type and the following controlled scalping and weighting systems, the endless mat is formed with a high weight accuracy cross- and lengthwise over a large range of all thicknesses. page 2

05 | 2011 Your benefits Integrated fiber lump dissolving in the bin discharge Optimized utilization of material due to reduced scalping and direct return of material to the bin Universal forming concept from ultra thin (1 mm) to thick boards (40 mm) High process stability due tot large capacity forming bin High surface quality mat suitable for all kinds of mechanical processing, laminating or direct and digital printing Low energy consumption concept (no vacuum system and high efficiency drives) Controlled weight distribution cross- and lengthwise for high forming accuracy Highest weight...

05 | 2011 New MDF forming concept Gluelump dissolving feature included in bin outfeed Reduced scalping for thin boards Universal forming concept for 1,0 to 40 mm board thickness Standardized forming bin design with large capacity Line speed up to 2000 mm/s page 4

05 | 2011 New MDF forming concept page 5

05 | 2011 MDF Forming Station in 3D page 6

05 | 2011 Type: THDF line with x-chute page 7

05 | 2011 Type: High capacity lines with collecting belt page 8

05 | 2011 Elements of MDF forming station From Distribution gate Discharge head with Forming bin Integrated dissolving rollers Mat scale Mat scale Spreading head High speed outfeed rollers for fiber dissolving effect Guided fiber flow by multi chamber principle Less air speed with controlled air flow Equalizing roller unit with profile former page 9

05 | 2011 Forming bin and discharge head Discharge head with dissolving rollers Air control flaps Multi chamber principle Guided fiber flow by multi chamber principle Less air speed with controlled air flow page 10

05 | 2011 Forming bin and discharge head Highspeed outfeed rollers dissolve fiberballs Small gap page 11

05 | 2011 Forming head Height adjustable forming head for various board production Optimized fiber flow and roller arrangement Separate adjustable roller speed New roller design Prepared for integration Position thick board Position thin board page 12

05 | 2011 View into forming head with new forming roller Detail of forming rollers page 13

05 | 2011 Scalping unit for optimal weight tolerances Option: Minimum scalping with profile former especially for thin board and HDF production page 14

05 | 2011 Scalping unit for optimal weight tolerances Scalping unit page 15

05 | 2011 Scalping unit for optimal weight tolerances Mat scale Profile former page 16

05 | 2011 Fibermat before equalizing Fibermat after equalizing page 17

05 | 2011 Summing up: Your benefits Integrated fiber lump dissolving Optimized utilization of material due to reduced scalping Universal forming concept from ultra thin (1 mm) to thick boards (40 mm) High process stability High surface quality Low energy consumption concept High forming accuracy Highest weight accuracy page 18