VENEER MOVING APPARATUS

• US 20200130979A1
• Filed: 10/22/2019
• Published: 04/30/2020
• Est. Priority Date: 10/24/2018
• Status: Active Grant

• Current Assignee: Meinan Machinery Works, Inc.
• Original Assignee: Meinan Machinery Works, Inc.
• Inventors: Yamada, Hidetaka
• Granted Patent: US 11,180,338 B2
• Time in Patent Office: Days
• CPC Class Codes: B27D 1/10 Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting see also B27M3/002 and B27M3/0026
• CPC Class Codes: B65H 2301/4212 of articles substantially horizontal
• CPC Class Codes: B65H 2402/54 Springs, e.g. helical or leaf springs
• CPC Class Codes: B65H 2404/733 reciprocating
• CPC Class Codes: B65H 2701/1938 Veneer sheet
• CPC Class Codes: B65H 29/125 between two sets of rollers
• CPC Class Codes: B65H 29/14 and introducing into a pile
• CPC Class Codes: B65H 29/22 and introducing into a pile
• CPC Class Codes: B65H 31/02 with stationary end support against which pile accumulates
• CPC Class Codes: B65H 31/14 Springs fluid springs B65H31/16
• CPC Class Codes: B65H 5/16 by pusher, needles, friction, or like devices adapted to feed single articles along a surface or table
• CPC Class Codes: B65H 9/08 Holding devices, e.g. finger, needle, suction, for retaining articles in registered position
• CPC Class Codes: B65H 9/10 Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
• CPC Class Codes: B65H 9/103 acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop

Abstract

An apparatus for moving veneer includes a leaf spring having at lower tip end thereof sharpened edges and configured to move a veneer sheet toward its preceding stationary veneer sheet. Further lowering the leaf spring with the tip end already stuck in the veneer sheet causes the leaf spring to be resiliently deformed, which creates a force due to restoring force of the leaf spring that acts on the veneer sheet to move toward the preceding veneer sheet thereby to reduce or eliminate a gap between the two veneer sheets. Additional leaf spring movable with the above leaf spring and configured to hold the preceding veneer sheet during the movement may be provided.

Claims

1. A veneer moving apparatus comprising,

a plurality of first springs disposed spaced along a first direction of the apparatus and configured to move a first veneer sheet toward a stationary second veneer sheet in a second direction that is perpendicular to the first direction and parallel to surfaces of the first and the second veneer sheets;

a veneer support disposed below the first veneer sheet and the second veneer sheet and configured to support the first and the second veneer sheets at the bottom thereof; and

at least one first actuator configured to move the first springs in a third direction that is perpendicular to the surfaces of the first and the second veneer sheets reciprocally toward and away from the first veneer sheet;

each of the first springs including a first leaf spring having a first end portion fixed to the at least one first actuator and a second end portion located opposite from the first end portion and closer to the first veneer sheet than the first end portion, and at least part of the first leaf spring being disposed extending obliquely from the first end portion toward the second veneer sheet with respect to an imaginary plane that extends parallel to the first direction and the third direction and passing through the first end portion; and

the at least one first actuator being configured to cause each of the first leaf springs to move reciprocally along a straight path defined by the imaginary plane or a curved path lying on a side of the linear path that is adjacent to the second veneer sheet, between a first position where the second end portion of the first leaf spring is spaced away from the surface of the second veneer sheet and a second position where the second end portion of the first leaf spring is engaged with the second veneer sheet while the first end portion of the first leaf spring is spaced away from the surface of the first veneer sheet.

2. A veneer moving apparatus according to claim 1, wherein the second end portion of the first leaf spring has at a tip end thereof a plurality of sharpened portions.

3. A veneer moving apparatus according to claim 1, wherein the second end portion of the first leaf spring is formed extending in the third direction.

4. A veneer moving apparatus according to claim 1, further comprising,

a plurality of second springs disposed spaced along the first direction of the apparatus and downstream of the respective first leaf springs with respect to the direction in which the first veneer sheet is moved toward the second veneer sheet and configured to hold the second veneer sheet;

and

at least one second actuator configured to move each of the second springs reciprocally in the third direction toward and away from the second veneer sheet;

each of the second springs having a first end portion fixed to the at least one second actuator and a second end portion located opposite from the first end portion of the second spring and closer to the second veneer sheet than the first end portion of the second spring, and the first end portion and the second portion of each second spring being aligned in the third direction;

the at least one second actuator being configured to cause each of the second springs to move reciprocally between a first position where the second end portion of the second spring is spaced away from the surface of the second veneer sheet and a second position where the second end portion of the second spring is engaged with the surface of the second veneer sheet.

5. A veneer moving apparatus according to claim 4, wherein each of the second springs includes a second leaf spring having an intermediate curved compressible portion between the first end portion and the second end portion of the second leaf spring.

6. A veneer moving apparatus according to claim 4, wherein each of the second springs includes a compression spring disposed extending in the third direction.

7. A veneer moving apparatus according to claim 4, further comprising a first sensor that is configured to determine operation timing of the at least one first actuator.

8. A veneer moving apparatus according to claim 4, further comprising a second sensor that is configured to determine operation timing of the at least one second actuator.