B27L5/00

Knife carriage, a rotary veneer lathe having the same, and a veneer slicer having the same
12090681 · 2024-09-17 · ·

A nosebar is supported by supports arranged along the longitudinal direction, and the supports are assembled to fixtures to swing independently of each other in a direction away from a log according to the reaction force of the pressing force acting on the supports. Thus, when a knife peels a knot part of the log or a fragment of the log enters a cutting edge, the portion of the nosebar pressing the knot part or corresponding to the location where the fragment enters the cutting edge is greatly deformed, while the deformation of the nosebar in the other portions is kept small. A corner of the nosebar is prevented from contacting the peeled portion of the raw wood and generating a gap when the nosebar is bent and deformed.

Method for making a decorative multilaminar veneer

A method for making a decorative multilaminar veneer with accentuated curvilinear shapes consists of the steps of: obtaining sheets of wood from a log of wood or from a block of multilaminar wood; superimposing and permanently sticking the sheets of wood on top of one another to form a plurality of packets of sheets of wood; providing a plurality of male molds and at least one female countermold, wherein each male mold has a convex curvilinear profile with different curvature radiuses of one mold with respect to the other and wherein the female countermold has a concave curvilinear profile; arranging, pressing and permanently sticking together several packets, in sequence and superimposed, between the female countermold and in sequence the male molds to deform in a curvilinear manner the packets, replacing in sequence, upon the reaching of a preset height of the superimposed, joined and deformed packets a male mold with a profile with a greater curvature radius with a successive male mold with a profile with a lesser curvature radius; obtaining a sliceable block formed by said superimposing, joining and deforming of packets of the sheets of wood; slicing said block to obtain a decorative multilaminar veneer.

Method for making a decorative multilaminar veneer

A method for making a decorative multilaminar veneer with accentuated curvilinear shapes consists of the steps of: obtaining sheets of wood from a log of wood or from a block of multilaminar wood; superimposing and permanently sticking the sheets of wood on top of one another to form a plurality of packets of sheets of wood; providing a plurality of male molds and at least one female countermold, wherein each male mold has a convex curvilinear profile with different curvature radiuses of one mold with respect to the other and wherein the female countermold has a concave curvilinear profile; arranging, pressing and permanently sticking together several packets, in sequence and superimposed, between the female countermold and in sequence the male molds to deform in a curvilinear manner the packets, replacing in sequence, upon the reaching of a preset height of the superimposed, joined and deformed packets a male mold with a profile with a greater curvature radius with a successive male mold with a profile with a lesser curvature radius; obtaining a sliceable block formed by said superimposing, joining and deforming of packets of the sheets of wood; slicing said block to obtain a decorative multilaminar veneer.

TOOL FOR MAKING WOODEN STRAWS AND THE PROCESS OF PRODUCTION

A new method of producing wooden straws from pure wood using a special set of tools and steps in the production. The procedure is carried out using a modified shaping and cutter machine, which is normally used for metal processing, by adding a special tool and cylinders. The wooden straw has multiple advantages compared to the previous state of the art, especially in relation to ecological advantages in preserving the health of people and the environment, since no glues or additives of any kind are used in the production process.

Veneer lathe and method of producing veneer

The veneer lathe comprises rotatable spindles for engaging the ends of a block, a centering device for measuring dimensions of the block for determining optimal centering of the block, the centering device comprising centering spindles for engaging each end of the block, transfer arms moveable in the axial direction of the spindles for engaging the ends of the block and in a direction that is perpendicular to the axial direction for transferring the block from the centering device to a peeling position, a knife assembly comprising a knife and a nose bar, which is in the form of a rotatable roll, and a support device comprising a lower roll and an upper roll at a distance from the lower roll for supporting the block during peeling.

Method for producing a veneer

Method for manufacturing second wood sheets from first wood sheets, comprising steps (i) to (iv): (i) providing first wood sheets having a laminarly developed front side and backside, wherein the moisture content of said first wood sheets is below the fiber saturation point of the wood; (ii) applying a water-comprising adhesive to one or more front sides and/or one or more backsides of said first wood sheets provided in step (i); (iii) adhering said wood sheets from step (ii) and optionally from step (i) with laminar sides to each other in order to form a block which comprises adhered layers of said first wood sheets, wherein the adhering is performed such to increase the moisture content of said formed block up to or above the fiber saturation point of the wood; (iv) slicing said block formed in step (iii) to form said second wood sheets.

Method for producing a veneer

Method for manufacturing second wood sheets from first wood sheets, comprising steps (i) to (iv): (i) providing first wood sheets having a laminarly developed front side and backside, wherein the moisture content of said first wood sheets is below the fiber saturation point of the wood; (ii) applying a water-comprising adhesive to one or more front sides and/or one or more backsides of said first wood sheets provided in step (i); (iii) adhering said wood sheets from step (ii) and optionally from step (i) with laminar sides to each other in order to form a block which comprises adhered layers of said first wood sheets, wherein the adhering is performed such to increase the moisture content of said formed block up to or above the fiber saturation point of the wood; (iv) slicing said block formed in step (iii) to form said second wood sheets.

ELECTRIC VENEER LATHE

Embodiments of an electric linear actuator may include a roller screw assembly, an electric motor coupled to the roller screw assembly, and a linear transducer operatively coupled with the roller screw assembly. The motor may be configured to drive the roller screw assembly to extend and retract another component, such as a rod. In some embodiments, the linear transducer may be configured to detect a position of the rod. The roller screw assembly may be coupled directly to the motor via a gear coupling, with the motor disposed generally in axial alignment with the roller screw assembly. Other embodiments disclosed herein include a veneer lathe carriage with electric linear actuators and corresponding apparatuses, methods, and systems.

Method and apparatus for producing figured veneer
09610703 · 2017-04-04 · ·

A method for making a piece of figured veneer comprises softening lignin in a sheet of veneer, and advancing the sheet of veneer between a first roller having a semi-flexible outer surface and a second roller. Apparatus for making a piece of figured veneer comprises a device for softening lignin in a sheet of veneer, and first and second rollers between which the sheet of veneer is pressed. The first roller has a semi-flexible outer surface.

Method and apparatus for producing figured veneer
09610703 · 2017-04-04 · ·

A method for making a piece of figured veneer comprises softening lignin in a sheet of veneer, and advancing the sheet of veneer between a first roller having a semi-flexible outer surface and a second roller. Apparatus for making a piece of figured veneer comprises a device for softening lignin in a sheet of veneer, and first and second rollers between which the sheet of veneer is pressed. The first roller has a semi-flexible outer surface.