Extrusion forming apparatus

Details Extrusion forming apparatus Extrusion forming apparatus

1992-10-09

1993-09-07

Nguyen, Khanh P.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

Extrusion shaping means

15624411, 156500, 264171, 425188, 4253823, 425462, B29C 4706, B29C 4712

Patent

active

052422909

ABSTRACT:
An extrusion forming apparatus (1) has an extruder (2) which has a head main body part (6) with an extruder main body (5A, 5B) and a pair of movable heads (7) coupled to the head main body part (6), and a clamping machine (3) which clamps the head main body part (6) and the movable heads (7). The head main body part (6) is provided with a first stopping piece (41) projecting on the side surface thereof and having a first stopping surface (43) extending obliquely backward toward the side surface of the head main body part (6). The movable head (7) is also provided with a second stopping piece (42) projecting on the side surface thereof and having a second stopping surface (44). The clamping machine (3) includes a pushing piece (53) having a contact surface (54) abutting against the second stopping surface (44), and a clamp piece (55) capable of moving in and out toward the side surface of the head main body part (6) and abutting against and pressing the first stopping surface (43) by moving toward the side surface of the head main body part (6).

REFERENCES:
patent: 3151356 (1964-10-01), Senecal
patent: 3902835 (1975-09-01), Theysohn
patent: 4137027 (1979-01-01), Ruger
patent: 4358261 (1982-11-01), Ohki
patent: 4652410 (1987-03-01), Inoue et al.
patent: 4683095 (1987-07-01), Tolonen et al.
patent: 4824353 (1989-04-01), Hirschkorn
patent: 4983113 (1991-01-01), Hirschkorn
patent: 5061166 (1991-10-01), Gohlisch et al.

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