摘要:
The method disclosed is for treating an article, i.e., polishing an article, of the type with a rotating vessel where the article to be treated is fastened in relation to the vessel. To enable the article to be treated to be placed in position without the need to remove the particles from the vessel, the article is moved between a loading and unloading position, where the article is outside the mass of particles, and a working position, where it is subjected to the action of the particles to polish and strip pieces of furniture.
摘要:
An apparatus for centrifugal hydromechanical cleaning and polishing has a working cylinder filled with a working medium which is a mixture of working bodies and working fluid. The cylinder is closed by a left and a right cover. The covers are provided with sleeves through which a billet to be cleaned can pass. In the axis of the cylinder there is fixed a perforated pipe which is connected to a feed pump. The left cover is provided with a hole for charging the cylinder with a working medium, which is hermetically closed with a cap. The working cylinder is seated on supporting rolls and is rotated on its axis. In an alternative embodiment of the apparatus, bearing units are pressed-in eccentrically in both covers and billets are positioned in the bearing units and rotated by a transmission mechanism. In both embodiments, as the cylinder rotates, centrifugal forces cause the working bodies to envelop the billets and abrade them. Products of abrasion washed away by circulating working fluid.
摘要:
Industrial treatment machines having a rotating vessel, wherein the vessel is driven in rotation via the door for obturating the access opening, so that, by switching on a gear motor, the door automatically closes, while reversal of the direction of rotation of the motor provokes opening of the door.
摘要:
A self-limiting method and apparatus for deburring or rounding sharp edges. Structures which basically comprise a skin which is a surface of revolution with a plurality of upstanding ribs in a pattern forming pockets often have sharp edges on the sides of the ribs, formed by chemical milling or machining operations, with the edges lying along lines substantially parallel to the skin. It is necessary to deburr or round over these sharp edges without damaging or deforming the ribs or skin. To accomplish this, the structure is mounted on a fixture which permits the structure to be rotated around its axis of rotation while the axis is tilted at selected angles. The fixture is positioned above a hopper containing hard, small balls (usually steel). An elevator mechanism lifts the balls to a dispenser above the fixture which has appropriately located slots above the sharp edges to be rounded. Balls are allowed to fall through the slots onto the sharp edges and adjacent areas. The edges gradually rounded over by the impact of the falling balls. When ball size and drop height are properly selected, the edges will be deformed only to the desired radius, after which further impacts have no significant further effect. Adjacent areas of the ribs are substantially uneffected by ball impact. The thin skin areas at the bottom of the pockets are not damaged, since the balls strike the skin at low, glancing angles.
摘要:
An apparatus for deflashing of elastomeric elements comprising: (a) a tumbling barrel having a closable opening for introducing and withdrawal of elastomeric elements and deflashing media to the interior of the barrel; (b) a refrigeration chamber sized for receiving the barrel therein, having an access opening for providing access to a barrel located therein, having mechanism for mounting the barrel therein, and having apparatus for lowering the temperature of the interior of the chamber; and (c) mechanism for imparting motion to the barrel mounted within the chamber to achieve impacting movement to the barrel contents. The apparatus avoids the high costs and dangers of the complicated prior art cryogenic devices and is excellently suited for smaller molders.
摘要:
A barrel apparatus for use in treating workpieces with grinding media, comprising a novel rotary barrel provided on its inner peripheral wall with a spiral flight extending lengthwise of the barrel and one or more ancillary flights extending straight or in an extremely modulated spiral form lengthwise of said barrel and intersecting the spirals of said first spiral flight, thereby accelerating the flow of the contents in the barrel to improve grinding efficiency, and further, permitting smooth delivery of the contents even when a small amount of the contents is present in the barrel.
摘要:
A gyratory finishing machine, of the type in which the finishing units gyrate about a common center and advantageously rotate about their own axis, is provided with loading and unloading means for loading and unloading selected finishing chambers without stopping the gyration of the other finishing chambers. This is generally accomplished through a null-point producing means for establishing a null-point relation between the selected finishing chamber and the loading and unloading means. The null-point can be established by bringing the selected finishing chamber to said common center, or by causing said loading and unloading means to gyrate in unison with the gyration of the selected finishing chamber. The loading and unloading can be effected while the selected finishing chamber is at the common center or by transferring the selected finishing chamber from the null-point to a remote loading station.
摘要:
A method for obtaining vibrational and lateral movement within rotatable receptacles is disclosed. The lateral movement is achieved by the interruption of the simple circular motion of a receptacle by slight projections in the circular path of the receptacles. The interruptions cause the materials within the receptacles to vibrate and move laterally rather than continue in a strict circular path. The interruptions may take the form of studs or projections on the outer circumference of the receptacles being rotated or may take the form of studs or projections located on the means rotating the receptacles. The rotatable receptacles are classically rotated by belts.
摘要:
Apparatus for grinding and polishing small parts which is of the centrifugal drum polisher type, said apparatus including a stationary support, a rotor mounted on the support, and a plurality of drum containers mounted on the rotor and in frictional engagement with the stationary support so that the drum containers will rotate in response to rotation of the rotor.
摘要:
A motor driven, slowly turning and horizontally disposed rotary support shaft is provided and a hollow tubular receiver is supported from the shaft for rotation therewith. The receiver is positioned in spaced relation outwardly of one side of the shaft and extends longitudinally of the latter. A resilient deformable drum is removably supported within the receiver and the drum includes an access opening for the entrance of stones to be tumbled into the drum and the discharge of tumbled stones therefrom, a removable closure being provided for the access opening. A plurality of tubular receivers and associated resilient drums may be supported from and spaced about the shaft and the shaft is of a length to have a plurality of sets of circumferentially spaced receivers and associated drums spaced longitudinally of the shaft.