Veneer edge joinder method and apparatus
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United States of America Patent
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-
Jun 5, 1990
Grant Date -
N/A
app pub date -
Mar 9, 1989
filing date -
Mar 9, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Veneer edge treatment method and apparatus are described. The apparatus includes plural work stations distributed along the length of elongate conveyor means for transporting the veneer sheets as a series into and out of the work stations, with each work station having means for working on at least one of opposed terminal edges of a veneer sheet occupying the station. Selectively controllable scarfing, glue-applying and bonding work stations are provided, and the selectively controllable conveyor sections extending thereinto, therebetween and therefrom are vacuum-assisted to maintain alignment of the veneer sheets transported thereby. Sensing means and control means measure the distances between the opposed terminal edges of successive veneer sheets and determine their lengths, permitting the apparatus to handle veneer sheets or different lengths. In the preferred embodiment, the scarfing station includes dual circular saws pivotably mounted on a laterally reciprocable carriage for scarfing the leading and trailing edges of adjacent veneer sheets. In the preferred embodiment, the trailing edge of a downstream veneer sheet has glue applied to it while the leading edge of the same veneer sheet is being bonded with the trailing edge of the length of edge-joined veneer formed by the apparatus.
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