Patent Number: 6,332,765

Title: Cutter hub holder

Abstract: A cutter hub holder for blades acting against a die plate of an underwaterpelletizer including a resilient axially biased blade holder that isdrivingly connected with a driven shaft and biased axially toward the dieplate by a piston and piston rod engaging a resilient device by a variablycontrolled pressure. The motor shaft has a through bore to introduce thevariably controlled pressure to vary the resilient axial bias exerted onthe cutter hub holder. In one embodiment, the driving connection betweenthe shaft and cutter hub holder includes a quick connect and disconnectdrive coupling to enable the blade holder to be quickly replaced. Inanother embodiment, the driving connection between the shaft and cutterhub holder includes an axially movable keyed connection and the piston rodincludes two axially spaced pistons to increase the axial force exerted onthe cutter hub holder through a resilient device.

Inventors: Spelleken; Juergen (Dinslaken, DE)


International Classification: B29B 9/06 (20060101); B29B 9/02 (20060101); B29B 009/06 ()

Expiration Date: 12/25/2014