SPLITTING TYPE HOLDING MECHANISM IN MOLD FOR SPLITTING TYPE CENTRIFUGAL CASTING AND METHOD FOR FITTING ROUND CORE USED THIS MOLD

• Main Author: OKAZAKI KAZUHIRO
• Format: Patent
• Language: English
• Published: 06.01.1995
• Edition: 6
• Subjects: CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING

PURPOSE:To cast a round product having good roundness by arranging a projecting part on a back surface of a sprue in an upper mold and a recessed part on the upper surface edge part of split molds. CONSTITUTION:The projecting part 10 is arranged on the back surface of the sprue 9 in the upper mold 1. The recessed part 11 is arranged on the upper surface edge part of the sprue 9 side of the split molds 5. When the split molds are held to the round shape at the center position of the mold, the recessed part 11 has the structure fit to the projecting part 10. Key parts 12 are arranged at the relative position on the center line interposing the projecting part 10 on the back surface in between in the upper mold 1. A key groove 13 is bored at the center line on the upper surfaces of the split molds 5. At the time of rotating the mold, by pushing the split molds 5 with one end of centrifugal pendulum 6 in the upper mold 1, two pieces of the split molds 5 form the round shape at the center position. At this time, the projecting part 10 is fit in the recessed part 11 to make sure of holding the split molds 5. The key part 12 and the key groove 13 are fit and the movement of the split molds 5 is smoothened without side shifting.