Spring-loaded self-adjusting melt cutter

Details Spring-loaded self-adjusting melt cutter Spring-loaded self-adjusting melt cutter

1993-02-25

1994-02-08

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Preform severing means

Means forming from bulk and downstream severing means

425311, B29B 906

Patent

active

052844331

ABSTRACT:
An improved rotary melt cutter capable of accommodating a wide variation in polymer melt viscosities and melt characteristics is provided by use of a controlled pressure spring mechanism which operates in conjunction with each of several independently articulated knife-assemblies of the cutter. The knife-blade cutting-edges thereby maintain near-zero clearance from an extruder die-face from which polymer strands are being extruded. The cutter operates more effectively with less interruption and fouling than cutters of similar design but which utilize hydraulic pressure as the means of maintaining near-zero clearance.

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patent: 5059103 (1991-10-01), Bruckman et al.

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