DEVICE FOR PRESSING OF SHELL STOCKS Russian patent published in 2008 - IPC B27N3/08 

FIELD: technological processes, construction.

SUBSTANCE: device contains matrix installed in plate and pressing unit installed in cross bar that is displaced along vertical line with power mechanism of device and interacts with product stock installed in matrix. Pressing unit is arranged in the form of two arched sides that are hingedly joined to each other with hinged supports for rods installed in them, which form groups that are mutually spaced along longitudinal axis of the stock, every of which is made of elements of composite vertical rod, which is fixed in cross bar and hingedly connected to sides with pair of rods, and pair of rods inclined to vertical line, which are hingedly connected to cross bar and the sides. Composite elements of vertical rods are connected to each other by means of screw joint with the possibility of alteration of total length of rods. Device has hydraulic drive, which includes cross-bar connected power hydraulic cylinders, pipelines, discharge pipeline, tank for pumping of working fluid, manometer, hydraulic high pressure pump for pumped working fluid, system of pipelines with equipment of power hydraulic cylinders control. Hydraulic drive is arranged with two double-position hydraulic distributors, one of which is installed at additional pipeline that connects piston and stem cavities of power hydraulic cylinders. At that discharge pipeline is arranged with adjusted pressure relays installed in it for automatic switching of hydraulic drive elements to different modes of operation.

EFFECT: reduction of working hours spent, power inputs of pressing process and increase of efficiency, with manufacture of high quality products.

2 cl, 6 dwg