Fluid pressure actuated drive for the closing unit of an injecti

Details Fluid pressure actuated drive for the closing unit of an injecti Fluid pressure actuated drive for the closing unit of an injecti

1976-10-01

1978-12-05

Schwadron, Martin P.

Plastic article or earthenware shaping or treating: apparatus

Mold opening and closing means and segmented female mold

91508, 91416, 91422, 91438, 91470, 251 59, A01J 2100, F15B 1100

Patent

active

041283805

ABSTRACT:
A fluid pressure actuated drive for providing for the closing unit of an injection moulding machine a to and fro traversing motion of a movable part of the unit with little force and a clamping of the closed unit with a greater force. The device has at least two double acting piston and cylinder devices which act in parallel and the pistons of which each have at each side a piston rod which passes through a seal in the responsive adjacent cylinder end. The piston rod on one side of at least one piston is thicker than that on its other side and the piston rod on one side, which corresponds to the same working side as one side of the one piston, of the or each other piston is thinner than that on its other side. Traverse in one direction is provided by applying fluid pressure to both sides of the one piston, and in the other direction by providing fluid pressure to both sides of the other piston. Clamping pressure is provided by applying fluid pressure to one side only of each of the pistons.

REFERENCES:
patent: 2872700 (1959-02-01), Knowles
patent: 3202179 (1965-08-01), Vockroth, Jr.
patent: 3603210 (1971-09-01), Florjancic
patent: 3722368 (1973-03-01), Suzuki
patent: 3818801 (1974-06-01), Kime
patent: 3827335 (1974-08-01), Lewis
patent: 3920364 (1975-11-01), Cadojan et al.
patent: 4021181 (1977-05-01), Hehl

Affiliated with

Also associated with

Rating

Fluid pressure actuated drive for the closing unit of an injecti does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluid pressure actuated drive for the closing unit of an injecti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid pressure actuated drive for the closing unit of an injecti will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-284869