z14 series

I. Working process: 

When modeling, first pull away the upper pressure plate, put the sand box on the template frame of the workbench (sometimes need to put the auxiliary frame). Then fill in the molding sand. When the sand is filled, the jar cylinder can also be activated to produce a jolt, so that the molding sand edge is filled in, and the edge is initially compacted. At this time, the pressure plate is turned back to the central position relative to the sand box, and then the compacted cylinder is started, so that the workbench and the sand box rise together, the pressure plate is pressed into the auxiliary frame, and the molding sand is compacted. When the table rises, the four ejector rods rise together, when the table falls, the four ejector rods cannot fall by the top, and the sand box is held up, so the shape comes out from the sand mold. At this time, the sand has been tightened and can be removed. Then make the drawing rod drop, the molding machine back to the starting state, and the molding completes a cycle. 

Ⅱ. The advantages and disadvantages of the machine:

1. Advantages:

① For small parts with various degrees of complexity, it can meet the process requirements;

② The machine structure is compact and simple. Easy maintenance, good rigidity;

③ Dust cover is used everywhere on piston and guide rod.

2. Shortcomings:

① small compression force, large percussion noise, high labor intensity;

(2) Using the distribution valve sequence control, it is impossible to repeat a certain intermediate process, and it is impossible to carry out a certain process alone, which brings trouble to the operation and maintenance;

③ The drawing cylinder and the drawing frame require high parallelism, which brings difficulties to installation and adjustment.