Take-up and payoff system for vertical profiling cutting saw (vpx)
AssigneeEsco Group LLC
InventorsRichard A. Hungerford, JR., John Slott
Life of this patent
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Abstract
A profiling saw with band knife loop take-up and payoff compensation includes an endless circulating band knife which is guided around a plurality of band knife pulleys so the take-up and payoff adjustment is provided of the loop circulation path shape. The take-up and payoff system operates to move a pulley in the vertical plane for allowing the band knife to maintain its cutting orientation during movement and providing for more rapid and precision cuts into a workpiece.
Claims19
A profiling bandsaw comprising:
- a circulating endless band knife forming a loop and guided around a plurality of band knife pulleys such that at least three of the band knife pulleys are fixed and at least three of the band knife pulleys are substantially simultaneously displaceable;
- and
- wherein at least one of the fixed pulleys and at least one of the displaceable pulleys form a blade take-up and payoff adjustment system such that the at least one displaceable pulley moves in a vertical plane to compensate for changes in loop circulation path shape when the position of the band knife moves across a horizontal plane.
A vertical profiling bandsaw (VPX) comprising:
- a band knife configured into a loop;
- an upper actuator guide positioned horizontally above a lower actuator guide;
- a blade guide actuator positioned horizontally between the upper actuator guide and lower actuator guide for supporting a span of the band knife;
- a take-up and payoff actuator positioned vertically between the upper actuator guide and lower actuator guide for adjusting circulation path shape of the loop;
- and
- wherein the loop is configured to move along six pulleys where three of the pulleys are in a fixed position and three of the pulleys move in a manner allowing the band knife to be selectively positioned horizontally along the blade guide actuator.
A take-up and payoff system used with a vertical profiling bandsaw (VPX) comprising:
- a band knife configured into a loop moving along at least six pulleys;
- an upper actuator guide positioned horizontally above a lower actuator guide for controlling band knife position;
- a take-up and payoff actuator positioned vertically between the upper actuator guide and lower actuator guide for adjusting circulation path shape of the loop;
- and
- wherein a take-up and payoff actuator is configured to use at least one of the at least six pulleys moving in a manner to control the loop path circulation shape of the band knife.
A method for configuring a vertical profiling handsaw (VPX) comprising:
- circulating an endless band knife guided around a plurality of band knife pulleys to form a loop such that at least three of the band knife pulleys are fixed pulleys that are fixed in position and at least three of the band knife pulleys are displaceable pulleys that are simultaneously displaceable in position;
- using one of the fixed pulleys and one of the displaceable pulleys to form a blade take-up and payoff adjustment assembly;
- and
- moving the at least one displaceable pulley in the take-up and payoff adjustment assembly in a vertical plane to compensate for excess circulation path area in the loop when a cutting area of the band knife moves across a horizontal plane.
Dependencies are inferred from the claim text.