The board bad paving system is a key link in the wood-based panel production chain. The paving can form a single-layer uniform slab, such as medium-density fiberboard and structural shavings: it can also form a three-layer structure, such as particleboard or oriented strand board. In this case, the core layer and the surface layer have different molding properties. Requirements. Regardless of the type of paving method, in order to achieve optimized board failure characteristics, the required process parameters must be achieved by perfect mechanical equipment.
The working principle and technical features of the star-shaped paving machine currently used in the imported MDF production line:
The material is discharged from the silo through a metering belt at the bottom of the forming silo and a disc dispersing roller at one end of the silo discharge. The fibers fall onto a mechanical paving head consisting of a set of toothed rolls. The pitch and speed of the toothed rolls are adjustable to control the amount of falling of the fibers through the gap of the toothed rolls and to ensure uniform distribution of the fibers in the longitudinal and transverse directions of the slab. The inclination and height of the paving head can be adjusted. Excess material is discharged from the screw at the end of the paving head. After the paving head, there is a leveling head composed of a leveling roller, which is used to keep the quality of the bad unit area of ​​the paved board constant, and is not affected by the thickness of the paved slab and the bad density of the board.
Technical characteristics
. Due to the uniform distribution of fiber distribution and slab density, the paving accuracy is high, and the weight distribution in the longitudinal/transverse direction of the slab is optimal;
. The optimized distribution of the fibers on the paving head allows the molding process to be controlled. The flattening head is used instead of the flattening roller, and the paving machine no longer recycles the fibers, thus reducing the pneumatic conveying system
. Low power consumption
. The fiber silo was replaced by a large-capacity slab forming silo.
. Improved quality of finished board
Saving investment, maintenance and energy costs
The fiber paving capacity per metre of the width of the star paving machine is about 350-1000 cubic meters / hour
The working principle and technical features of the star-shaped paving machine currently used in the imported MDF production line:
The material is discharged from the silo through a metering belt at the bottom of the forming silo and a disc dispersing roller at one end of the silo discharge. The fibers fall onto a mechanical paving head consisting of a set of toothed rolls. The pitch and speed of the toothed rolls are adjustable to control the amount of falling of the fibers through the gap of the toothed rolls and to ensure uniform distribution of the fibers in the longitudinal and transverse directions of the slab. The inclination and height of the paving head can be adjusted. Excess material is discharged from the screw at the end of the paving head. After the paving head, there is a leveling head composed of a leveling roller, which is used to keep the quality of the bad unit area of ​​the paved board constant, and is not affected by the thickness of the paved slab and the bad density of the board.
Technical characteristics
. Due to the uniform distribution of fiber distribution and slab density, the paving accuracy is high, and the weight distribution in the longitudinal/transverse direction of the slab is optimal;
. The optimized distribution of the fibers on the paving head allows the molding process to be controlled. The flattening head is used instead of the flattening roller, and the paving machine no longer recycles the fibers, thus reducing the pneumatic conveying system
. Low power consumption
. The fiber silo was replaced by a large-capacity slab forming silo.
. Improved quality of finished board
Saving investment, maintenance and energy costs
The fiber paving capacity per metre of the width of the star paving machine is about 350-1000 cubic meters / hour
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