Anti-vibration method of band saw blade in band saw machine and anti-vibration arrangement

An anti-vibration arrangement for a band saw blade in a band saw machine, which is configured to cut a workpiece by shifting an endless band saw blade running in a circulating manner to a cutting direction, the anti-vibration arrangement comprising:

• a blade guide that movably guides the band saw blade;
• nozzles mounted on the blade guide, wherein the blade guide is configured to slide with respect to the workpiece so as to move the nozzles to a position proximate a cut groove of the workpiece and inject a jetted high-pressure liquid into the cut groove at the proximate position;
• and
• the nozzles injecting the jetted high-pressure liquid in a range 1-10 mpa:
• toward each side face of a body of the band saw blade on an entering-side where the band saw blade enters into a cut groove of the workpiece provided by the band saw blade in a cutting process of the band saw machine;
• toward the bottom of gullets, which are defined by spaces between adjacent saw teeth of the body of the band saw blade;
• and
• toward a nearby area of the body of the band saw blade, wherein the anti-vibration arrangement is configured to suppress vibration of the band saw blade via injection of the jetted high-pressure liquid within gaps between the side faces of the band saw blade and cut faces of the workpiece and into the cut groove of the workpiece during the cutting process,
• the jetted high-pressure liquid hitting the side faces of the band saw blade to provide a collision force that sandwiches the band saw blade so as to suppress vibration of the band saw blade;
• and wherein
• the nozzles are orientated in a plane that both extends in the cutting direction and also extends in a direction perpendicular to the side faces of the band saw blade, and
• wherein entire outlet openings of the nozzles are positioned below a midpoint of a height of the band saw blade such that the jetted high-pressure liquid is concentrated at a lower end of the band saw blade, the height of the band saw blade being in a direction that is perpendicular to the plane in which the nozzles are oriented.

An anti-vibration method of a band saw blade in a band saw machine, which is configured to cut a workpiece by shifting an endless band saw blade running in a circulating manner to a cutting direction, the anti-vibration method comprising:

• injecting a high-pressure liquid in a range of 1-10 mpa from a pair of nozzles:
• toward each side face of a body of the band saw blade upon an entering-side where the band saw blade enters into a cut groove of the workpiece formed by the band saw blade in a cutting process;
• toward the bottom of gullets, which are defined by spaces between adjacent saw teeth of the body of the band saw blade;
• and
• toward a nearby area of the body of the band saw blade;
• and
• suppressing vibration of the band saw blade, wherein
• the high-pressure liquid is injected within gaps between the side faces of the band saw blade and cut faces of the workpiece and is introduced into the cut groove of the workpiece during the cutting process,
• the high-pressure liquid hitting the side faces of the band saw blade to provide a collision force that sandwiches the band saw blade so as to suppress vibration of the band saw blade;
• and wherein
• the nozzles are orientated in a plane that both extends in the cutting direction and is oriented also extends in a direction perpendicular to the side faces of the band saw blade,
• and
• wherein entire outlet openings of the nozzles are positioned below a midpoint of a height of the band saw blade such that the high-pressure liquid is concentrated at a lower end of the band saw blade, the height of the band saw blade being in a direction that is perpendicular to the plane in which the nozzles are oriented.

An anti-vibration arrangement for a band saw blade in a band saw machine, which is configured to cut a workpiece by shifting an endless band saw blade running in a circulating manner to a cutting direction, the anti-vibration arrangement comprising:

• nozzles for injecting a high-pressure liquid:
• toward each side face of a body of the band saw blade on an entering-side where the band saw blade enters into a cut groove of the workpiece provided by the band saw blade in a cutting process of the band saw machine;
• toward the bottom of gullets, which are defined by spaces between adjacent saw teeth of the body of the band saw blade;
• and
• toward a nearby area of the body of the band saw blade, wherein
• the anti-vibration arrangement is configured to suppress vibration of the band saw blade via injection of the high-pressure liquid in a range of 1-10 mpa within gaps between the side faces of the band saw blade and cut faces of the workpiece and into the cut groove of the workpiece during the cutting process,
• the high-pressure liquid hitting the side faces of the band saw blade to provide a collision force that sandwiches the band saw blade so as to suppress vibration of the band saw blade;
• and wherein
• the nozzles are orientated in a plane that both extends in the cutting direction and also extends in a direction perpendicular to the side faces of the band saw blade,
• and
• wherein entire outlet openings of the nozzles are positioned below a midpoint of a height of the band saw blade such that the high-pressure liquid is concentrated at a lower end of the band saw blade, the height of the band saw blade being in a direction that is perpendicular to the plane in which the nozzles are oriented.