An apparatus for treating a surface of an object is disclosed, including a carrier configured to transport the object through a treatment zone and an array of nozzle devices, each nozzle device positioned to deliver a cavitating jet into the treatment zone. The apparatus further includes a fluid source, a pump connected to the fluid source, and a hose configured to carry fluid under high pressure generated by the pump from the fluid source to the array of nozzle devices.

Foam items may be buffed using particles such as particulate sodium bicarbonate in accordance with the present invention. Foam items may be, for example, expanded EVA foam items pre-formed into an intermediate size and shape. A skin layer may be formed during the expansion of the foam item to form an expanded foam item which may be entirely or partially removed by buffing the item using particles projected with selected buffing parameters. The buffing parameters may be varied based upon the thickness of at least a portion of the skin layer and/or the desired degree of moldability for the foam item after buffing. Particulate sodium bicarbonate or other types of particles used for buffing may be recycled and reused for further buffing of foam items.

Foam items may be buffed using particles such as particulate sodium bicarbonate in accordance with the present invention. Foam items may be, for example, expanded EVA foam items pre-formed into an intermediate size and shape. A skin layer may be formed during the expansion of the foam item to form an expanded foam item which may be entirely or partially removed by buffing the item using particles projected with selected buffing parameters. The buffing parameters may be varied based upon the thickness of at least a portion of the skin layer and/or the desired degree of moldability for the foam item after buffing. Particulate sodium bicarbonate or other types of particles used for buffing may be recycled and reused for further buffing of foam items.

A plurality of rotatable small table are disposed on a rotatable large table, and a workpiece is mounted on the small tables. Above a projection range in the large table, a pressing part is provided. The pressing part is elevated and lowered by an elevating/lowering mechanism between a withdrawn position spaced above the workpiece on the small table and a pressing position for pressing the workpiece on the small table from above. Also, the pressing part is rotationally driven coaxially with a rotary shaft of the small table and in the same rotating direction and at the same rotating speed as the small table, by a third drive mechanism.

A plurality of rotatable small table are disposed on a rotatable large table, and a workpiece is mounted on the small tables. Above a projection range in the large table, a pressing part is provided. The pressing part is elevated and lowered by an elevating/lowering mechanism between a withdrawn position spaced above the workpiece on the small table and a pressing position for pressing the workpiece on the small table from above. Also, the pressing part is rotationally driven coaxially with a rotary shaft of the small table and in the same rotating direction and at the same rotating speed as the small table, by a third drive mechanism.

A shot processing apparatus is equipped with a work set jig, a hanger transport device, a projection machine, a projection positioning unit and a clamp unit. The work set jig is equipped with a base member including an upper and lower pair of cross members and a vertical member. A workpiece is settable at the base member between the upper and lower pair of cross members. The hanger transport device is, with the work set jig in a hanging state, movable along a guide path in the shot processing apparatus and is capable of stopping thereon. The projection machine projects projection media at a workpiece set at the base member inside a projection chamber which the workpiece is conveyed into. The projection positioning unit positions the work set jig at a stopping position in the projection chamber. The clamp unit fixes a workpiece between the upper and lower pair of cross members.

First guide pipes are disposed on both sides of blasting areas, and second guide pipes are disposed on both sides of the blasting area. A wire rod W is inserted through the first guide pipes and the second guide pipes, penetrating in a conveying direction of the wire rod W. The diameter of each of first insertion holes of the first guide pipes and second insertion holes of the second guide pipes is gradually reduced toward the downstream side in the conveying direction. The second guide pipe is installed in a state in which the downstream-side end portion in the conveying direction is inserted into the first insertion hole from the inlet side of the first guide pipe.

First guide pipes are disposed on both sides of blasting areas, and second guide pipes are disposed on both sides of the blasting area. A wire rod W is inserted through the first guide pipes and the second guide pipes, penetrating in a conveying direction of the wire rod W. The diameter of each of first insertion holes of the first guide pipes and second insertion holes of the second guide pipes is gradually reduced toward the downstream side in the conveying direction. The second guide pipe is installed in a state in which the downstream-side end portion in the conveying direction is inserted into the first insertion hole from the inlet side of the first guide pipe.

The invention relates to a treatment system for treating workpieces. Devices and methods of the disclosure are configured to perform at least one treatment operation on the workpiece, as well as at least one receiving unit for accommodating the workpiece on or in the treatment device. A transport device is provided that comprises at least one transport unit, with which the workpiece is transferable into a transfer position, from which the workpiece is transferable by means of the at least one receiving unit into a treatment position, as well as a control device for controlling the at least one treatment unit, the at least one receiving unit, and the at least one transport unit.

A re-circulatory blasting device obtained is capable of performing stable treatment for a prolonged period of time even in cases in which an elastic abrasive employed has abrasive grains adhered to the surface of elastic cores. An elastic abrasive regeneration device provided to the blasting device regenerates elastic abrasive employed for re-circulation. The elastic abrasive regeneration device includes a mixer and a combining unit. Recovered abrasive fed in from an abrasive recovery section is mixed in the mixer with abrasive grains fed in from an abrasive grain feeder, and the abrasive grains are adhered to the surface of the cores of the recovered abrasive. In the combining unit, the abrasive grains are pressed against and combined to the surface of the cores by passing an aggregated state of the recovered abrasive mixed by the mixer along a constricted flow path having a flow path cross-sectional area that gradually narrows.