Lamellar wood production line

General product information about the line from the production plant

• the production capacity of the plant may vary depending on the quality and dimensions of the wood used
• produced in this company the following dimensions for the raw material: thickness:45/50 mm and width: 92/110/127 mm
• the largest quantities were for the 45 x 92 mm section, which after splitting resulted in 4 lamellas of 19.5 mm (of 92 mm) x 41.2 mm (of 45 mm)
• in this case, the daily average (3 shifts/day) was 210 cbm of finished product/day.
• the planing and splitting loss varied between 18.1% and 22.4% depending on the dimension of the wood and the splitting pattern

Plant structure rough:

• feeding wood raw material
• stroke feeding
• material input/feeding area
• sawing unit feed measurement and wood waste disposal
• sawing unit feeding
• sawing unit 5 m
• planing and moulding machine WEINIG POWERMAT 2500 / serial no.117922/2013
• powermat lamella output
• sorting unit lamella scrap/lamella for further agreement
• infeed scanner lamella/scanner MICROTEC GOLDENEYE 500
• lamella sorting and differentiation according to production specifications
• tape transfer/assignment to box areas according to length and specification

(for detail sub-area shots see PDF 1_Lamella_line)

GOLDENEYE
detection and description of wood defects spruce
the following specifications apply to a cross-section of 52 x 68 mm and a feed speed of 450 m/min

knots: detection of knots with diameter >6.0 mm (standard deviation 2.5 mm)
detection of:

• black knots
• Healthy knots
• drop-out knots
• wing knots

cracks:

• detection of width of cracks; width> 0.4 mm, length >25.0 mm; angle crack in longitudinal direction of width not > 30 degrees. The depth of the cracks is not detected.

resin pockets:

• detection of resin pockets with width > 3.00 mm and length of > 25.00 mm or in the case of a roundish shape with diameter> 20.00 mm.
• the detection is carried out with a combination of laser scatter method and colour cameras. The resin pockets must not be filled with sawdust.

forest edge:

• detection of forest edge with width and thickness > 2.0 mm and length 25.0 mm.
• the detection is done by 3D laser image processing.

damage of edges

• detection of damage to edges with width and thickness >2.0 mm and length>25.0 mm.
• detection is done by 3D laser image processing.

blue stain

• detection of severe blue stain area> 10 mm; length 100 mm.
• detection is done using the colour camera with sufficient contrast compared to the average wood colour.

browning:

• detection of heavy browning area>width 10 mm: Length 100 mm.
• detection is made by means of the colour camera with sufficient contrast compared to the average WOOD COLOUR: There may be confusion between tan and box.

pith:

• detection of pith height width > 5.0 mm and length 50 mm.
• detection is made with the aid of the colour camera when there is sufficient contrast compared to the mean wood colour.

bark inclusion:

• detection of bark inclusion with a width of >3 mm and a length of < 25 mm or in the case of a roundish shape with diameter > 20.00 mm.
• detection is carried out using a combination of laser scatter techniques and colour cameras. this approach drastically reduces false alarms. the signal from the colour cameras checks colour contrasts and thus determines the dimension of the bark inclusion

over-under width:

• width measurement with standard deviation of 0.3 mm averaged over a length of min. 15.0 cm.
• the width is measured independently on the upper and lower side, the measurements are carried out with a resolution of 0.15 mm.

over-under thickness:

• thickness measurement with standard deviation of 0.3 mm averaged over a length of min. 15 cm.
• the board thickness is measured independently on the top and bottom side. the measurements are carried out with a resolution of 0.15 mm.

WEINIG POWERMAT 2500
spindle arrangement U-R-L-Saw-U-O-U-O
special spindle arrangement for lamella production for centre layer production

• B=70-160 mm/230 mm
• H=40-70 mm
• L=1000-5100 mm
• finished lamella= 15-52 mm

raw material (wood edged to width)
the lumber is edged in such a way that no residual piece remains in the machine when it is ripped open.
feed rate depends on the available, motor power is adjusted for each width class. Feeding butt to butt.

2. types of production depending on input material and lamella dimensions

1) sawing-U-O-U-O
2) all spindles in operation.

technical data

• working width: 70-160/230 mm
• working height: 20-70 mm

1st spindle
first lower horizon spindle

• motor with brake: 30 kW
• diameter: 50 mm
• speed:6000 rpm
• tool flying circle:163-210 mm

2nd spindle
first right vertical spindle

• motor with brake: 11 kW
• diameter: 50 mm
• speed: 6000 rpm
• tool flying circle: 163-260 mm
• max. tool diameter: behind fence: 235 mm
• max. throat depth: 35 mm
• axial adjustment travel: 60 mm

3rd spindle
first left vertical spindle

• motor with brake: 18,5 kW
• diameter: 50 mm
• speed: 6000 rpm
• tool flight circle: 163-260 mm
• tool flight circle for straight cutter heads max. 235 mm
• maximum throat depth: 35 mm
• axial adjustment travel: 60 mm

4th spindle
lower saw spindle

• motor with brake: 75 kW
• diameter: 50 mm
• speed: 6000 rpm
• tool flying circle: 180-320 mm
• maximum cutting depth: 70 mm
• axial adjustment travel: 40 mm

5th spindle
second lower horizontal spindle

• motor with brake: 22 kW
• diameter: 50 mm
• Speed: 6000 rpm
• tool flying circle: 163-210 mm
• maximum tooth removal: 2 mm
• axial adjustment travel: 0 mm

6th spindle
first upper horizontal spindle

• motor with brake: 22 kW
• diameter: 50 mm
• speed: 6000 rpm
• tool flight circle: 163-260 mm
• tool flight circle for straight cutter heads max. 35 mm
• maximum throat depth: 2 mm
• axial adjustment travel: 0 mm

7th spindle
third lower horizontal spindle

• motor with brake: 11kW
• diameter: 50 mm
• speed: 6000 rpm
• tool flying circle: 163-260 mm
• maximum throat depth: 0,5 mm
• axial adjustment travel: 0 mm

8th spindle
second upper horizontal spindle

• motor with brake: 11 kW
• diameter: 50 mm
• speed: 6000 rpm
• tool flight circle: 163-260 mm
• tool flight circle for straight cutter heads max. 235 mm
• maximum throat depth: 0,5 mm
• axial adjustment travel: 0 mm

Feed system

• electronic feed: 12 - 120 m/min
• motor: 37 kW
• feed roller diameter: 220 mm

Data GOLDENEYE

• area of application: sorting
• plant: panel plant
• wood species: spruce, fir, pine (no mixed operation with pine)
• length of lamella: 1000 mm - 5020 mm
• width of the lamella: 37 mm - 68 mm
• thickness of lamella: 15 mm - 52 mm (2 thicknesses at the same time per batch with a maximum thickness difference of 12 mm between the 2 thicknesses)
• wood surface: good circular saw cut top bottom; well planed sides (clean surface)
• wood moisture: 8-18 %.
• wood temperature: 0 -+40 °C
• max. feed rate GOLDENEY: from 80 m/min up to 450 m/min. (depending on cross section)
• board gap in scanner. >200 mm
• ambient temperature +5 °C up to +40 °C
• max. humidity:< 80 % rel
• system configuration: 3D 4-sided and 4-sided visual inspection
• processors cameras: PC based operation digital C-Mos Ethernet high line cameras

 

• feel free to take a look at the video and the PDF's about the machine

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