Rotary type blow molding machine
First Claim
1. A rotary molding machine, comprising:
- a machine bed;
a plurality of operational stations disposed on the machine bed, including an injection molding station, a temperature control station, an orientation blow molding station, and a molded product removing station;
a transfer plate disposed above the machine bed, rotating means for rotating the transfer plate about an axis and moving means for moving the transfer plate vertically along said axis, up and down relative to said machine bed;
a plurality of lip molds supported by the transfer plate, said lip molds being effective for interacting with said operational stations located on said machine bed;
said moving means comprising a stationary cylinder having a piston movable therein, said piston coupled to said transfer plate and effective for moving the same vertically up and down; and
said rotating means comprising a stationary rotating driving device having a driving shaft coupled to said piston and effective to rotate said piston to thereby rotate said transfer plate, said driving shaft being flexibly coupled to said piston in a manner which maintains a driving connection with said piston in all vertical positions of said piston.
1 Assignment
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Accused Products
Abstract
A rotary type molding machine for molding preforms and hollow molded products from the preforms includes a circular transfer plate with depending lip molds. The transfer plate is disposed above a machine bed and is suspended from a plate body which is itself supported at its edges on the machine bed. The transfer plate is rotatable and movable up and down. Rotation of the transfer plate enables the lip molds to be aligned to one or the other of an injection molding station, a temperature control station, an orientation blow molding station, and a molded product moving station. Molds and various related devices are disposed on the machine bed. The transfer plate is reciprocated by a vertically movable piston and its hydraulic cylinder. The piston is flexibly coupled to a driving shaft of an intermittently rotatable driving device which shaft is effective to rotate the transfer plate and remain coupled to the piston regardless of the vertical position thereof.
19 Citations
23 Claims
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1. A rotary molding machine, comprising:
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a machine bed; a plurality of operational stations disposed on the machine bed, including an injection molding station, a temperature control station, an orientation blow molding station, and a molded product removing station; a transfer plate disposed above the machine bed, rotating means for rotating the transfer plate about an axis and moving means for moving the transfer plate vertically along said axis, up and down relative to said machine bed; a plurality of lip molds supported by the transfer plate, said lip molds being effective for interacting with said operational stations located on said machine bed; said moving means comprising a stationary cylinder having a piston movable therein, said piston coupled to said transfer plate and effective for moving the same vertically up and down; and said rotating means comprising a stationary rotating driving device having a driving shaft coupled to said piston and effective to rotate said piston to thereby rotate said transfer plate, said driving shaft being flexibly coupled to said piston in a manner which maintains a driving connection with said piston in all vertical positions of said piston. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification