Blow-extruder in which the moulds are carried by a vertical whee

Details Blow-extruder in which the moulds are carried by a vertical whee Blow-extruder in which the moulds are carried by a vertical whee

1990-05-23

1991-09-17

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

425540, B29C 4936

Patent

active

050490613

ABSTRACT:
The invention relates to a blow-extruder machine possessing a frame (4) having a plane support structure (6) and supporting a wheel (10) which can rotate about its axis (12) in a vertical plane and which is equipped with moulds (14) on its periphery, the moulds being, as a function of their positions in the plane of the wheel, closed in order to create a moulding cavity (16) or open in order to receive a tubular parison (42), and an extrusion head (40) located in an area in which the opposite mould is open and intended to supply the said parison (42) according to a direction (F) which is inclined relative to the support surface (6) and downwards, the machine comprising a support (60; 70; 80) possessing a plane (P) which is inclined relative to the horizontal and which supports the support surface (6), the inclined plane (P) forming, with a horizontal plane, an acute angle (b) which is approximately equal to 90.degree. less the acute angle (a) formed by the direction (F) of the parison (42) and the support surface (6) such that the direction (F) of the parison (42) is approximately vertical.

REFERENCES:
patent: 2579390 (1951-12-01), Mills
patent: 2579399 (1951-12-01), Ruekberg
patent: 3334379 (1967-08-01), Di Settembrini
patent: 3764250 (1973-10-01), Waterloo
patent: 3881855 (1975-05-01), Farkas
patent: 4197071 (1980-04-01), Salle et al.
patent: 4569651 (1986-02-01), Krall
patent: 4650412 (1987-03-01), Windstrup et al.

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