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IKS Veneer Knife Applied in Veneer Cutting Equipment

Update:11 Apr 2017

IKS offers high-quality blades for veneer cutting equip […]

IKS offers high-quality blades for veneer cutting equipment. In this article, IKS will give you a brief introduction to the single-chip cutting machine, so that you can better understand our blade applications.

In selecting veneer cutting equipment, it is important to remember the forces involved in cutting. In one rotary - cutting study (57), calculated loads were as high as 200 pounds per inch of knife and 500 pounds per inch of pressure bar. Pictures comparing early lathes and modern lathes indicate that experience has dictated the desirability of more rigid lathes. A lathe or slicer operator never has trouble because the equipment is too rigid, but excessive movement of machine parts is a common problem. If smooth, tight veneer of uniform thickness is to be produced, it is better to have a lathe or slicer that is stronger than necessary rather than to have one that is under designed.

Some face veneer slicers are made so excessive pressure cannot be applied to the flitch. The knife and bar carriage is not fastened on the ways of some horizontal slicers. Thus, if the total force against the flitch exceeds the weight of the knife and pressure bar carriage, the carriage is lifted from the ways. Similarly, on vertical slicers, the knife and bar assembly is not held on the half bearings that allow the knife to be offset on the upstroke of the flitch table. if there is excessive nose bar pressure, thin veneer sheets are produced and eventually the flitch will not clear on the up stroke. At this time, the knife and bar carriage will be lifted slightly from the half - bearing and the noise when the carriage falls back alerts the slicer operator that he has too much nosebar pressure.

Similarly, it is desirable to have hydraulically operated dogs on slicers and hydraulically operated chucks on a lathe. Any tendency of the wood work piece to come loose in cutting is automatically corrected as hydraulic pressure resets the dogs or chucks.

Another source of unwanted movement of the lathe or slicer is heat distortion. The use of A - frames with screw take ups on the nose bar casting is one method of correcting for this.

Keeping the knife and pressure bar warm reduces condensation and so reduces the staining. The heart of any lathe or slicer is the knife and pressure bar. The machine should permit rapid change of the knife and bar and easy adjustment of the clearance angle of the knife and the lead and gap between the knife and nose bar. If these adjustments are difficult to make, the operator will make as few adjustments as practical and so produce poorer quality veneer than would be produced on easily adjustable equipment.

Retractable dogs on slicers and retractable chucks on lathes permit secure holding of large wood flitches and bolts; when the dogs or chucks are retracted they permit continuous cutting to thin backboards or small - diameter cores. Recent development of the vacuum table permits fast loading of flitches and cutting to a thin backboard. However, the flitch back should be wide, flat, and smooth to maximize the holding power of the vacuum table.

Veneer Knife -

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