| 摘要 |
<p>The multiple press for making concrete kerbstones or similar has for each ram, a lower plate (10) supporting a pressure plate assembly (1, 2, 3) by means of a multiple telescopic cylinder arrangement connected to a hydraulic circuit. At each end of the lower plate is a first telescopic guide (11) with a lower member (13) sliding inside an upper member (12). Between them is a support (20) on the lower plate engaging a cylinder (28) under the upper member with a line (36) connected to the hydraulic control circuit. This support has a top extension (22) each side with a piston (26) suspended from each which slides inside a cylinder (25) attached to the main outside cylinders (12). These auxiliary cylinders (25) are connected by lines to the actuator valve of the hydraulic circuit.</p> |
