Joining method and apparatus of single veneer piece

Abstract

This invention provides joining methods of single veneer piece and a joining apparatus, which can produce more efficient, and effective joining process than the conventional method and apparatus produce. In the process of carrying a single veneer piece (T) in the orthogonal direction against the joining edge (Te) on the conveyor, the joining edges of the preceding and succeeding single veneer pieces come close together, the adhesive material (Sd) is supplied to the clearance between the joining edges, and then the adhesion enhancing action is supplied to the said adhesive material (Sd) to join each single veneer piece (T) successively. The adhesion enhancing action can be applied within the adhesion enhancing section as indicated by lines (Z1) and (Z2), provided on the farther side from the edge approaching position (U) via an adhesion enhancing component (6) to move back and forth at any time while the single veneer piece (T) is being carried or such a motion is halted. And such adhesive enhancing action is applied first to the adhesive material (Sd) which has been supplied for adhering the joining edge positioned on the farthest side in a carrying direction all the time.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]This invention relates to a joining method of veneer sheets (hereinafter referred to as “veneers”) and joining equipment.[0003]2. Description of the Related Art[0004]In the conventional way to efficiently join plural short veneers without a sufficient length to be processed, on the way to carry each veneer in a perpendicular direction to the joining edges of each veneer, it is preferable to make edges of a preceding veneer and a succeeding veneer closer such that an appropriate amount of the adhesive material is supplied between the joining edges of the preceding and succeeding veneers or on one portion of one or the other side of the preceding and succeeding veneers at an appropriate time before or after the joining edges come closer. As the said adhesive materials, adhesive thread, adhesive tape or the like in which the desired adhesive materials are coated or soaked in an appropriate base material such as a string ma...

AI Technical Summary

Benefits of technology

This approach enhances productivity by allowing for the use of appropriate adhesive performance, improving the joining process efficiency and reducing costs by ensuring effective adhesive activation during the carrying process, regardless of veneer width or direction.

Problems solved by technology

In the aforementioned system, however, usually while the adhesion enhancing device is supplying the adhesion enhancing action to the adhesive material, normally the system processing efficiency goes down since the operation of the veneer carrying is halted.

Also, in the aforementioned system, a major issue i.e. the immediate result of the adhesive agent is too much emphasized, and adhesive strength, joining cost or the like is sometimes neglected, thus favorable and effective adhesive agent is not always used.

However, the aforementioned invention provides very limited technology to processes only veneers which had been cut both cutting faces of the pieces into the scarf inclined surfaces symmetrically with a regular cutting pitch.

For instance, this processing system lacks versatility which allows to be applied to the horizontally peeling process for small and narrow veneers with irregular widths in a fibrous direction and orthogonal direction.

Therefore, it was not a sufficient invention to greatly rationalize the process efficiency for joining single pieces.

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