Tube cutter with phase changer

Details Tube cutter with phase changer Tube cutter with phase changer

1977-09-06

1978-09-12

Hinson, Harrison L.

Turning

Severing or cut-off

Interrelated means for tool infeed and circumrotation

82 72, 82 92, B23B 304, B23B 514

Patent

active

041127943

ABSTRACT:
A tube cutoff device which includes a rotatable cutter head for radially slidably supporting a cutter and a pair of support rollers in circumferentially spaced relationship. A stationary tubular guide extends through the cutter head for permitting a tube to be fed therethrough and positioned between the cutter and the support rollers. A cam is rotatably supported on the cutter head and cooperates with the cutter and rollers for displacing same radially inwardly into engagement with the tube which is to be cut. The cutter head and the cam are rotatably drivably connected to first and second power trains, respectively, which cause the cam and cutter head to normally rotate at the same rotational speed. A phase change device is coupled between the first and second power trains and, when activated, causes the second power train and hence the cam to be rotated at a slightly different rotational speed, which differential rotational speed causes the cutter and support rollers to be cammed radially inwardly for supporting and cutting engagement with the tube.

REFERENCES:
patent: 1828371 (1931-10-01), Hyde et al.
patent: 2281450 (1942-04-01), Motch, Jr. et al.
patent: 2586209 (1952-02-01), Coretti
patent: 3772945 (1973-11-01), Varga

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