Flying saw apparatus
AssigneeGeorgia-Pacific Corporation
InventorsRobert J. Wise, James P. Petermann
Life of this patent
Estimating the term…
Abstract
A flying saw apparatus for severing a predetermined length of material from a continuously moving length of material is disclosed. A saw carriage is supported on a main frame assembly for reciprocating motion parallel to the direction of motion of the material. The saw carriage includes a saw bridge which extends transversely of the direction of motion of the saw carriage and is movable upwardly and downwardly. A saw shuttle, which carries a circular saw, is supported for reciprocating motion on the saw bridge. The saw carriage is connected through a drive mechanism to the main power drive of the material conveyor preceding the flying saw apparatus. The reciprocating motion of the saw carriage is transferred to reciprocating transverse motion of the saw shuttle by a rack and pinion mechanism.
Claims30
A flying saw apparatus for severing a predetermined length of material from a continuously moving length of the material comprising:
- a main frame assembly;
- a saw carriage including a saw bridge extending transversely of the direction of motion of the material, said saw carriage being supported by said frame assembly for reciprocating motion parallel to the direction of motion of the material to be severed;
- a saw shuttle connected to said saw bridge for reciprocating motion transverse to the direction of motion of said saw carriage;
- a saw, having a saw blade, carried by said saw shuttle;
- carriage drive means for driving said saw carriage in its reciprocating motion;
- means for coupling said carriage drive means to the drive mechanism of the moving length of material to coordinate the motion of the length of material to the motion of said saw carriage;
- shuttle drive means for moving said saw shuttle in its reciprocating motion, said shuttle drive means including a fixed rack extending in the direction of motion of said saw carriage, a pinion rotatably carried by said saw carriage in meshing engagement with said rack, and means for drivingly connecting said pinion to said saw shuttle whereby the reciprocal motion of said saw carriage is transferred into the reciprocal motion of said saw shuttle along the length of said saw bridge.
A flying saw apparatus for severing a predetermined length of material from a continuously moving length of material comprising;
- a main frame assembly;
- a saw carriage including a saw bridge extending transversely of the direction of motion of the material, said saw carriage being supported by said frame assembly for reciprocating motion parallel to the direction of motion of the material;
- a saw shuttle connected to said saw bridge for reciprocating motion transverse to the direction of motion of said saw carriage;
- a saw, having a saw blade, carried by said saw shuttle;
- carriage drive means for driving said saw carriage in its reciprocating motion;
- means for coupling said carriage drive means to the drive mechanism of the moving length of material to coordinate the motion of the length of material to the motion of said saw carriage;
- shuttle drive means for moving said saw shuttle in its reciprocating motion, said shuttle drive means including a rack extending in the direction of motion of the material to be severed and attached to a side member of said main frame assembly, a pinion rotatably carried by said saw carriage in meshing engagement with said rack and a shuttle drive chain coupling said saw shuttle to said pinion;
- said saw bridge including at least one material clamping bar extending transversely for clamping down on the material to be cut adjacent the path of said saw blade;
- actuator means for moving said saw bridge, including said at least one material clamping bar, and the saw in unison upwardly and downwardly;
- and
- said saw carriage including a saw bridge support frame extending upwardly above the level of the moving material on either side of said saw carriage, said saw bridge including a side frame adjacent each side of said saw bridge support frame, said side frames being connected to one another by transverse members including said at least one clamping bar, said actuator means including a piston-cylinder mechanism connected between each adjacently disposed saw bridge support frame and side frame.
A flying saw apparatus in accordance with claim 20, 23 or 22 wherein said means for coupling said saw carrying frame to said drive trolley includes a vertically extending plate extending from one of said drive trolley and saw carrying frame and a pair of cam rollers supported by the other of said drive trolley and saw carrying frame, said vertically extending plate being located between said cam rollers whereby the transverse motion of said drive trolley is transmitted to said saw carrying frames while vertical motion of said saw bridge relative to said drive trolley is permitted by relative vertical motion between said vertically extending plate and said cam rollers.
A flying saw apparatus in accordance with chain 25 wherein said coupling means includes a coupling block fixed to each of said main drive chains and a tow bar member extending transversely between opposite sides of said carriage and connected to said coupling blocks, said tow bar member being pivotably coupled at a plurality of locations to said saw carriage.
A flying saw apparatus for severing a predetermined length of material from a continuously moving length of the material comprising:
- a main frame assembly;
- a saw carriage including a saw bridge extending transversely of the direction of motion of the material, said saw carriage being supported by said main frame assembly for reciprocating motion parallel to the direction of motion of the material to be severed;
- a saw shuttle connected to said saw bridge for reciprocating motion transverse to the direction of motion of said saw carriage;
- a saw carried by said saw shuttle;
- carriage drive means for driving said saw carriage in its reciprocating motion;
- means for coupling said carriage drive means to the drive mechanism of the moving length of material to coordinate the motion of the length of material to the motion of said saw carriage;
- shuttle drive means for moving said saw shuttle in its reciprocating motion, said shuttle drive means including a fixed rack extending in the direction of motion of said saw carriage, a pinion rotatably carried by said saw carriage in meshing engagement with said rack, and means for drivingly connecting said pinion to said saw shuttle whereby the reciprocal motion of said saw carriage is transfered into the reciprocal motion of said saw shuttle along the length of said saw bridge;
- said saw bridge including at least one material clamping bar extending transversely for clamping down on the material to be cut adjacent the path of the saw;
- and
- actuator means for moving said saw bridge, including said at least one clamping bar and said saw, in unison upwardly and downwardly.
A flying saw apparatus for severing a predetermined length of material from a continuously moving length of the material comprising:
- a main frame assembly for supporting the apparatus on a support surface;
- a saw carriage supported by said main frame assembly for reciprocating motion parallel to the direction of motion of the material, said saw carriage including a side plate on either transverse side of the apparatus and a plurality of cross members extending between and attached to said saw carriage;
- said saw carriage including a saw bridge, said saw bridge having a side frame interconnected by a pair of spaced parallel runners and a pair of spaced parallel clamping bars;
- a saw shuttle including a saw carrying frame supported from reciprocal transverse motion by the runners of said saw bridge, a drive trolley supported for reciprocal transverse motion by one of the cross members of said saw carriage, and means for coupling said drive trolley to said saw carrying frame to transfer the transverse motion of said drive trolley to said saw carrying frame while permitting relative vertical motion between said drive trolley and said saw carrying frame;
- a saw carried by said saw carrying frame, said saw having a saw blade extending into the space between said clamping bars;
- carriage drive means for driving said saw carriage in its reciprocating motion;
- means for coupling said carriage drive means to the drive mechanism of the moving length of material to coordinate the motion of the length of material to the motion of said saw carriage;
- shuttle drive means for moving said saw shuttle in its reciprocating motion, said shuttle drive means including a rack attached to a side member of said main frame assembly and extending in the direction of motion of said saw carriage, a pinion rotatably carried by said saw carriage in meshing engagement with said rack, and a saw shuttle drive chain trained about sprockets on opposite transverse sides of said saw carriage and drivingly coupled to said pinion, said drive trolley being fixed to a portion of said saw shuttle drive train;
- a piston-cylinder actuator mechanism attached to either side of said saw carriage for raising and lowering said saw bridge, said clamping bars of said saw bridge being disposed above a pair of said cross members of said saw carriage, said pair of cross members being disposed in a spaced parallel relationship whereby when said saw bridge is lowered the material to be severed is clamped between said clamping bars and said pair of cross members and said saw blade extends into the space between said pair of cross members.
Dependencies are inferred from the claim text.