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.

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.

A knife assembly for use in a veneer cutting machine such as a rotary veneer lathe and a veneer slicer includes a knife blade, a knife blade holder and a knife adjusting bolt with a lock nut. The knife blade holder includes a holder block having formed therethrough a threaded hole through which the knife adjusting bolt is adjustably inserted. The holder block has a first support surface that is in supporting contact with a part of one surface of the knife blade on the side thereof where a bevel face of the knife blade is formed and a second support surface that is in supporting contact with a part of a base end surface located opposite from and extending parallel to a cutting edge of the knife blade.

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.

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.

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.