The present invention is a centrifugal projector (1) for projecting projection material (2) toward a processing target, comprising a side plate (11), a plurality of blades (3) attached to the side plate, a rotary shaft (14) for rotating the side plate and the blades, and an introducing part (32) for introducing the projection material between the blades; wherein the blades (3) includes a projection surface (3a) for projecting the projection material, and the projection surface (3a) has a first part (3b) being a radial inner part of the blade and a second part (3c) being a radial outer part of the blade; the first part (3b) is formed to be pitched so that a radial outer side (3e) of the first part is positioned to a rear in the rotational direction (R1) compared to a radial inner side (3f) of the first part, and the second part (3c) of the blade is formed to be positioned to a front in the rotational direction (R1) of an imaginary line (L1) which extends the first part (3b) of the blade toward a radial outer side of the projector.

A shot blasting machine includes a shot processing assembly, at least one impeller assembly, a collecting assembly, and a lifting assembly. The at least one impeller assembly includes a pair of rotary plates, a plurality of impeller blades, a plurality of connecting rods, and a protective case body. Each of the rotary plates has a central hole, a plurality of impeller blade grooves, and a plurality of limiting recesses. Each of the plurality of impeller blade grooves has a groove bottom part that is adjacent to the central hole and a groove top part that is adjacent to a circumference of each of the pair of rotary plates. Each of the plurality of impeller blades including a vane part and a pair of blade side parts that are connected to two sides of the vane part, and each of the blade side part has a limiting protrusion.

An impeller structure including two rotating discs, connecting components, and high-speed blades is provided. Each rotating discs includes a hole, locking holes, and snap-in slots. The snap-in slot includes an outer slot and a limit slot. The connecting component connected to the rotating discs through the locking holes. The high-speed blade includes a body and protrusions. The body includes two lateral walls. The high-speed blades are disposed between the rotating discs. Under high-speed rotation, the high-speed blade moves toward an outer edge of the rotating disc due to a centrifugal force. The lateral wall of the body is snapped into the snap-in slot and tightly fitted in the outer slot. The protrusion is snapped into the limit slot and restricts displacement of the protrusion. The impeller structure is easy to disassemble and assemble, and can withstand high rotating speeds. Also provided is a projection equipment with the impeller structure.

The centrifugal projector (1) of the present invention has: a side plate (11), a plurality of blades (3) attached to the side plate (11), a control cage (41-45) disposed on a radial inner side of the side plate for releasing the projection material between blades from an opening portion (41a-45e), a distributor (22), disposed on a radial inner side of the control cage, for mixing and supplying the projection material to the control cage, and a rotary shaft (14) for rotating the side plate, blades and distributor; wherein the blades are formed to be pitched so that a radial outer side (3c) thereof is positioned to a rear in the rotational direction (R1) compared to a radial inner side (3b) thereof; the control cage (41-45) has a plurality of opening windows (41a-45e), or a single opening window in which a portion or all of a plurality of opening windows are respectively overlapped and integrated into a single piece.

A method of altering an additively manufactured part can include orienting a surface of the additively manufactured part toward a rotational center that may be independent of a rotational axis defined by the additively manufactured part, flowing an abrasive media past the surface, rotating the additively manufacturing part about the rotational center; urging abrasive particles in the abrasive media past the surface abrasive media to impinge the surface with centrifugal force generated by the rotating, and improving surface finish of the surface.

The present invention relates to a method of manufacturing an impeller blade of a shot peening machine, the method including a part cutting process of forming a shot moving plate in which protrusions are formed by cutting a steel plate and first and second side guide plates in which insertion holes are formed, and a blade assembling process of assembling a blade by inserting the protrusions of the shot moving plate into the insertion holes of the first and second side guide plates, and an impeller blade manufactured according to the method.

A centrifugal blast wheel machine comprises a housing and a wheel assembly coupled to the housing. The wheel assembly has a plurality of blades configured to throw blast media introduced into the wheel assembly against a work piece. According to one embodiment, each blade of the plurality of blades includes a curved portion positioned adjacent a central hub of the wheel assembly, and a straight portion integrally formed with the curved portion extending radially outwardly from the wheel assembly. According to another embodiment, each blade includes a first side rail extending along the blade, the first side rail having a first recess, and a first grommet positioned in the first recess.

Provided is a centrifuge media separator for separating blast particulate from fine particulate carried by air flowing from a blast cabinet and through the media separator. The centrifuge media separator comprises an upper panel, a lower panel, and an outer wall. The upper panel has a central opening formed therein. The outer wall is configured in a truncated logarithmic shape and which extends between the upper and lower panels. The outer wall has at least one particulate escape aperture formed therein. The upper panel, lower panel and outer wall collectively define a curvilinear air passageway having an inlet and an outlet. An air foil extends from the outer wall in to the air passageway. The distance than the air foil extends in to the air passageway is adjustable. The inlet is configured to allow a flow of air to enter the air passageway and circulate therethrough toward the outlet. The escape aperture is configured to exhaust the blast particulate out of the passageway. The central opening is configured to exhaust the fine particulate out of the passageway.

A wheel assembly for a centrifugal blast wheel machine includes a blast wheel and several blades configured to throw blast media introduced into the blast wheel against a work piece. Each blade includes a first side having a first rail portion that extends along a length of the first side and a second side having a second rail portion that extends along a length of the second side. Each rail portion has a locking member positioned on an outside surface of the rail portion adjacent a first end of the blade. Each rail portion further has a contact surface that is configured to engage a surface of a seat of the blast wheel. Each blade further includes a positioning knob located on the first contact surface to prevent the blade from inadvertently being removed from the seat.

An impeller for a centrifugal blast wheel machine includes a hub provided at one end of the impeller, with the hub being configured to be coupled to the motor. The impeller further includes a tapered section provided at an opposite end of the hub, with the tapered section defining a media inlet to receive blast media. The impeller further includes a plurality of drop-shaped vanes positioned between the hub and the tapered section. The plurality of drop-shaped vanes is spaced from one another on peripheries of the hub and the tapered section. The plurality of drop-shaped vanes defines a plurality of impeller media outlets constructed and arranged to allow egress of blast media upon rotation of the impeller. Each vane is drop-shaped having a leading side directed toward a direction of rotation of the impeller and a trailing side opposite the leading side.