Low pressure double arm casting apparatus

• US 5,205,341 A
• Filed: 02/27/1990
• Issued: 04/27/1993
• Est. Priority Date: 02/27/1990
• Status: Expired due to Fees

• Current Assignee: Starline Manufacturing Company, Incorporated
• Original Assignee: Starline Manufacturing Company, Incorporated
• Inventors: Mackay, William F., Hoesly, Thomas R., Treul, Frederick F.
• Primary Examiner(s): Batten, Jr., J. Reed
• Application Number:
  US07/485,748
• Time in Patent Office: 1,155 Days
• Field of Search: 164/309, 164/306, 164/323
• US Class Current: 164/306
• CPC Class Codes: B22D 18/04 Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
• CPC Class Codes: B22D 33/02 Turning or transposing moulds

Abstract

A low pressure brass or bronze casting apparatus includes a pedestal, a low pressure casting furnace disposed in a spaced relation to the pedestal, a pair of immersion stations located in an equally spaced relation to the pedestal, a pair of arms mounted for rotary motion on the pedestal, a mold manipulator assembly mounted on each of the arms and being disposed for movement into operative engagement with the immersion station and the furnace, one of the arms being independently rotated between the furnace and one of the immersion stations and the other of the arms being independently rotated between the furnace and the other of the immersion stations.

Claims

1. A low pressure casting apparatus comprising:

a pedestal;

a low pressure casting furnace disposed in a spaced relation to said pedestal;

a pair of immersion stations located in equally spaced relation to said pedestal and to said furnace;

a first arm mounted for rotary motion on said pedestal between one of said immersion stations and said furnace;

a second arm mounted for rotary motion on said pedestal between said other immersion station and said furnace;

bearing means mounted on said pedestal below each of said arms wherein said arms ride on said bearing means on said pedestal;

a casting mold mounted on each of said arms and being disposed for movement into operative engagement with said immersion station and said casting furnace; and

means for cycling each of said arms independently of the other of said arms, said cycling means includes a pair of ring gears mounted on said pedestal and a drive motor assembly mounted on each arm in a position to operatively engage said corresponding ring gear,

radial bearing means located in said ring gears for countering lateral forces transverse to said pedestal, whereby one of said arms can be stopped for maintenance or repair without interrupting the motion of the other of said arms.

2. A casting apparatus comprising:

a base;

a casting furnace positioned in a spaced relation to said base;

a pair of immersion stations located in a spaced relation to said base and to said furnace;

an upper arm mounted for rotary motion on said base;

a lower arm mounted for rotary motion on said base;

a thrust bearing assembly mounted on said base to support each of said arms;

a mold manipulator assembly mounted on each of said arms, one of said assemblies being disposed for movement into operative engagement with one of said immersion stations and said casting furnace and the other of said arms being disposed for movement in operative engagement with the other of said stations and said casting furnace; and

means for moving each of said arms in opposite directions from said furnace, said moving means includes a pair of ring gears mounted on said base in a spaced relation and a drive motor assembly mounted on each arm in a position to operatively engage said corresponding ring gear;

a radial bearing in each of said ring gears, whereby one of said arms can be stopped for maintenance or repair without stopping the motion of the other of said arms.