Pressing arrangement for compressing ceramic and refractory mate

Details Pressing arrangement for compressing ceramic and refractory mate Pressing arrangement for compressing ceramic and refractory mate

1977-10-12

1978-12-05

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

Male shaping member and female mold

4254512, 425411, 425419, B28B 306

Patent

active

041283767

ABSTRACT:
Two mold sections of a mold for compressing a ceramic or refractory material into tile preforms are mounted on respective platens of a pressing machine for displacement toward and away from one another. One of the platens is a part of a frame which further includes upright beams and a support stationarily mounted on the upper ends of the beams. A plurality of cylinder-and-piston units the pistons of which are accommodated in bores of the movable platen and the piston rods of which extend outwardly of the bores and toward the support, is distributed over the movable platen and so acts thereon as to avoid bending of the movable platen. A reaction member is juxtaposed with the support and moves relative thereto between an active position in which the piston rods of the units penetrate into the then coaxial holes of the reaction member to permit the retraction of the movable platen, and an active position in which the piston rods of the units abut against abutment areas of the reaction member so that the units exert desirably distributed forces on the movable platen during the pressing phase of the operation of the pressing arrangement.

REFERENCES:
patent: 2075992 (1937-04-01), Lux et al.
patent: 3375791 (1968-04-01), Pakula
patent: 3613171 (1971-10-01), Hehl
patent: 3687590 (1972-08-01), Cyriax
patent: 4005974 (1977-02-01), Szabo
patent: 4043730 (1977-08-01), Bettonica
patent: 4053276 (1977-10-01), Ahrweiler

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