Pipe belling apparatus

Details Pipe belling apparatus Pipe belling apparatus

1981-06-22

1984-01-31

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Mold motion or position control

425393, 425DIG218, B29C 1700, B29D 2300

Patent

active

044287224

ABSTRACT:
Apparatus for automatically forming a bell-shaped socket on an end of thermoplastic pipe or the like. The apparatus includes a stripper plate separate from the belling mandrel, and positioned to be engaged and carried by the mandrel during a belling operation. The stripper plate carries a switch which is engaged by the end of the pipe when a predetermined bell depth is attained by the mandrel. Automatic control circuitry is disclosed to initiate a cooling water spray, to retract the mandrel, and to signal the absence of a good bell.

REFERENCES:
patent: 3205535 (1965-09-01), Niessner et al.
patent: 3910744 (1975-10-01), Ronden et al.
patent: 4134949 (1979-01-01), McGregor
patent: 4218208 (1980-08-01), Hayes et al.
patent: 4266926 (1981-05-01), Gordon
patent: 4277231 (1981-07-01), Gordon

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