GB1298274A - Vibratory apparatus - Google Patents

Abstract

1298274 Vibratory finishing VIBRODYNE Inc 11 March 1970 [11 March 1969] 11734/70 Heading B3D [Also in Division B2] Vibratory apparatus for finishing workpieces or ball milling comprises a frame 20, a multisectioned charging container 35, means mounted on the frame for supporting the container 35 for oscillation at a predetermined natural frequency, including spring means 50 connecting the container 35 to the frame 20, and power operated means 70 for oscillating the container 35. The container includes outer and centre sections 36, 38 lined, e.g. with polyurethane and bolted together through gaskets, a bar 48 rigid with each container section wall being bolted to corresponding spring beams 50, in turn bolted to fixed frame bars 28. I-section spring beams 55 support the outer end walls 42 of the sections 36. Supports 79 rigid with the sections 36, 38 support armatures 80, Fig. 3, extending between faces 82 of a pair of respective adjustably positioned electromagnets 70, each pair of magnets 70 being connected to an A.C. supply through an independent controller 90 to cause oscillation of the container 35 on the flexing beams 50, 55, tension springs 65 acting between container brackets 62 and the frame 20 to reduce the loading of the beams 50, 55. In alternative constructions, Figs. 5-6 (not shown), two containers (105) may be supported one on each side of a series of I-section spring beams (110), and a removable dust tight cover (118) may be provided on each container (105), e.g. for ball milling, preferably using ceramic balls. Further, Fig. 7 (not shown), openings may be provided in the end walls (134) of the vessel and in intermediate partitions (138), (140) for passage of elongate workpieces (P).