An anti-vibration arrangement for a band saw blade in a band saw machine, which is constructed to cut a workpiece by shifting the endless band saw blade running in a circulating manner to a cutting direction, wherein nozzles are provided for injecting high-pressure cutting liquid toward each side face of the body of the band saw blade on the entering-side where the band saw blade enters into a cut groove of the workpiece formed by the band saw blade in the cutting process of the band saw machine.

A saw guide can include pivotally connected arcuate sections having a plurality of slots formed therein to receive and guide saw blades as they cut a workpiece, such as a pipe or tube. The slots are of varying width so that the saw guide can be used with different saws. For example, the saw guide can include a first slot sized to receive and guide the blade of a reciprocating saw, and a relatively narrower second slot, sized to receive the blade of a portable band saw. The saw guide can include a locking mechanism to securely hold the saw guide on the workpiece, and a stopping mechanism for preventing the saw blade from cutting into the saw guide.

An angle guide for a band saw having a guide body for coupling to the band saw and a first engaging surface of the body for engaging a workpiece during a cutting operation of the band saw. The first engaging surface defines a first plane. The angle guide also has a second surface of the body defining a second plane. The second plane is substantially non-parallel to the first plane. The angle guide also includes a tool side edge of the body for being positioned adjacent the band saw, the tool side edge defining a third plane. A cut angle is defined by an angle between the first plane and the third plane.

A guide block assembly for controlling a saw blade of a band saw during cutting. The assembly includes a mounting part having a rear part adapted for securing the guide block assembly to the band saw frame and a front part for detachably securing a thrust part. The thrust part includes at least two thrust slats detachably secured in the front part of the mounting part. The slats are aligned and spaced apart around a center section of the front part. When using the guide block assembly, vibrations, chattering and heating of the saw blade are substantially reduced, and the production rate and speed are increased. The guide block assembly is typically used for band saws that have a cutting speed of between 1800-6000 m/min, pulley wheels having diameters of 1000-2500 mm, and saw blade widths in the range of 80-360 mm.

A band saw machine has two deflection pulleys arranged one above the other in the vertical direction, an endless saw band, which is guided around the deflection pulleys and which has an upward running portion and a downward running portion, and a machine frame, which has a saw neck for holding at least the upper deflection pulley. The deflection pulleys are arranged substantially parallel to a front edge of the machine frame, so that both the upward running portion and the downward running portion of the saw band face towards the front edge with their cutting edges. The saw neck is arranged offset from the deflection pulleys from the front edge (6) to the rear. Both the upward running portion and the downward running portion of the saw band are at least partially exposed between the deflection pulleys.

A slotted tube shaft carrying a blade head of a blade twister rotates in a slotted, stationary bearing housing for an endless band-shaped cutting or sawing element supported by two axially spaced subassemblies each having C-shaped, axially spaced, and slotted inner and outer bearing washers radially between the slotted stationary bearing housing and the slotted tube shaft. The inner and outer washers are fixed in the stationary bearing housing against rotation relative thereto with slots of the stationary bearing housing and washers radially aligned with one another. Respective sets of at least three roller bearings centered on and angularly distributed about the axis and fixed against angular movement between each of the inner washers and the respective outer washer. Each roller bearing radially outwardly engages the slotted stationary bearing housing and radially inwardly engages the tube shaft.

Adjustable blade guide assemblies and their methods of use are described. An adjustable blade guide assembly includes two lateral blade guides arranged to support opposing sides of a blade and a rear blade guide arranged to support a rear edge of the blade. The blade guides are moveable relative to the blade. The blade guide assembly includes biasing members associated with each blade guide which urge the blade guides in a direction away from the blade. Locking interfaces associated with each blade guide restrict displacement of the blade guides relative to the blade when the locking interfaces are in a locked configuration.

A blade guide of a band saw machine includes a main member, on which two wheels, two holding blocks, a pressing block, and a pressure sensor are provided. The main member is provided with a slot, a hole, and an opening. The wheels are pivoted on the main member and received in the slot. The holding blocks are received in the hole, and a band saw passage is formed between the holding blocks. The band saw passage is communicated with the slot for a band saw passing therethrough. The pressing block is received in the hole to contact the band saw in the band saw passage. The pressure sensor is received in the opening and contacting the pressing block to detect a pressure of the pressing block.

A guide for a blade of a bandsaw includes a head and two molded, replaceable shoes that constrain the blade. Each shoe is symmetrical, having four side faces as a thick diamond-shaped frictional border for blade contact. The back of the shoe is a replica of the front. Internal sides of each diamond profile have a resilient web having strips that reversibly lock with grooves against a parallelogram raised from the head surface to retain the shoe carry rubbing forces from the blade. The shoe may be removed, turned through 180 degrees, or flipped over.

A band saw machine includes a base having a cutting fluid reservoir, a saw blade housing movable in an up-down direction, a pair of saw blade wheels around which a band saw blade are wound, a downstream main vise having a pair of downstream main vise jaws for clamping a product correspondent portion of the workpiece, a discharge table for discharging a product to an outside of the cutting fluid reservoir, and a product feed mechanism that feed the product cut out from the workpiece to a side on an upstream end of the discharge table.

A working-side running area of the band saw blade and a working-opposite-side running area of the band saw blade are positioned within the cutting fluid reservoir, and the upstream end of the discharge table is positioned on a downstream side from a wheel center line connecting centers of the pair of saw blade wheels.