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Patent Searching and Data


Title:
METHOD OF MOLDING RUBBER PRODUCT BY USING CORE
Document Type and Number:
Japanese Patent JPS6178611
Kind Code:
A
Abstract:

PURPOSE: To shorten the period when molds are occupies by a hollow rubber product per cycle that is to be molded continuously, by performing the secondary vulcanization in a first molding cycle and the primary vulcanization in a second molding cycle.

CONSTITUTION: After cores 6, 6 and a top force 2 and a bottom force 4 are associated, an unvulcanized rubber material is loaded into cavities 3, 3, 5, 5, and is subjected to the primary vulcanization to such an extent the external shape thereof is stabilized. Then the forces are opened, a core structure 19 is moved to the forward position, the cores 6, 6 with the products 20, 20 whose primary culvanization has been completed are moved outside the forces. Then a turning actuator 9 is actuated, the cores 6, 6 with the products 20, 20 are moved around a main member 13 to the point opposite to the cavities. The products 20, 20 are vulcanized secondarily by heaters contained in the cores 6, 6. Then the core construction 19 is moved to associate the cores 6, 6, the top force 2 and the bottom force 4, and the next molding cycle is started.


Inventors:
MORIGUCHI TAKASHI
TERANISHI MASATOSHI
KUROKI KEN
SHIBATA YUKIO
Application Number:
JP1984000201215
Publication Date:
April 22, 1986
Filing Date:
September 26, 1984
Export Citation:
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Assignee:
TOYODA GOSEI KK
International Classes:
B29C33/02; B29C33/34; B29C35/02; B29K21/00; B29K105/24; B29L22/00; (IPC1-7): B29C33/02; B29C33/34; B29C35/02; B29K21/00; B29K105/24; B29L22/00