Method and apparatus for grooved section manufacture

Details Method and apparatus for grooved section manufacture Method and apparatus for grooved section manufacture

1979-11-05

1981-06-09

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Forming continuous work followed by cutting

264 11, 264163, 264173, 264174, 2642091, 264310, 425113, 425307, 425309, 425313, 425315, 425380, 425467, B29C 1716, G02B 514

Patent

active

042724724

ABSTRACT:
A process and tooling to carry on said process for producing direct from extrusion an open groove plastic cylindrical section which consists in extruding the material around cylindrical pins arranged along a circle and protruding downstream with respect with the die opening and drawing the deformable structure along inner cutters located in the ducts formed by the pins to cut the material between the duct and the outside and further drawing said still deformable structure around flexible wires free to fill said slitted ducts.

REFERENCES:
patent: 1405998 (1922-02-01), Gammeter
patent: 2096347 (1937-10-01), Short
patent: 2176233 (1939-10-01), Wermine
patent: 3778217 (1973-12-01), Bustamante et al.
patent: 4155963 (1979-05-01), de Vecchis et al.

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