Cutter hub holder
AssigneeGala Industries, Inc.
InventorJuergen Spelleken
Life of this patent
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Abstract
A cutter hub holder for blades acting against a die plate of an underwater pelletizer including a spring-loaded blade holder that is drivingly connected with a driven shaft and biased axially toward the die plate at a variably controlled pneumatic pressure. The driving connection between the shaft and cutter hub holder includes a quick connect and disconnect drive coupling to enable the blade holder to be quickly replaced. The motor shaft has a through bore to introduce the pneumatic pressure to the cutter hub holder.
Claims18
A cutter hub holder for blades acting in conjunction with a die plate of an underwater pelletizer comprising a bade holder drivingly connected to a driven shaft and biased axially toward the die plate at a variable controlled pressure by a spring and pressurized pneumatically in the direction of the die plate, said shaft being provided with an axial bore, the end of the shaft bore adjacent the holder including a cylinder bore, and the other end of the shaft bore being connected to a source of compressed air by a rotary transmission leadthrough, said cylinder bore slidably receiving a piston and piston rod acting on the holder through said spring.
A cutter hub holder for blades acting in conjunction with a die plate of an underwater pelletizer which comprises a blade holder drivingly connected to a driven shaft and biased axially toward the die plate at a variably controlled pneumatic pressure, said blade holder also biased toward the die plate by a coil spring, said coil spring being pressurized pneumatically in relation to the die plate for controlled variation in the pressure exerted on the blade holder toward the die plate, said driven shaft being provided with an axial bore having one end connected to a source of compressed air controlled by a pressure regulator, said bore at an opposite end including a piston and piston rod slidable in the bore and engaging said spring for exerting a variably controlled force on the blade holder.
A quick connect and disconnect coupling between a blade holder drivingly connected to a driven shaft and biased axially toward a die plate of an underwater pelletizer which comprises a tubular member connected with the blade holder and telescopically engaged with the driven shaft, said quick connect and disconnect coupling comprising a bayonet coupling of the tubular member with the driven shaft to enable quick replacement of the blade holder.
In an underwater pelletizer having an adjustable cutter hub holder axially movably and drivingly connected between a cutter hub having cutter blades mounted thereon and a driven shaft, said driven shaft including a through bore connected with a variable controlled source of pressure to bias the cutter hub and cutter blades toward a die plate of said underwater pelletizer.
A cutter hub holder for blades acting in conjunction with a die plate of an underwater pelletizer comprising a blade holder drivingly connected to a driven shaft, a spring extending axially of said driven shaft and biasing said blade holder axially toward the die plate, a variably controlled source of pneumatic pressure exerting an axial force on said spring and exerting a variable controlled axial biasing force through said spring toward said blade holder.
Dependencies are inferred from the claim text.