| 摘要 |
A jigger of molding machine with dosing of energy of pulse contains a working table made together with a plunger and is flexibly connected with hydraulic cylinder, a self-oscillating drive of working medium with adjustable accumulator, an inertia cantledge of mixture and a unit of automatic control of operation of electro-hydraulic distributor, which is located in the hydraulical connection with adjustable accumulator and in electromagnetic connection with electro-hydraulic distributor. The unit of automatic control of operation of electro-hydraulic distributor is made in the form of a stepped piston with a stock, the step of smaller diameter of which is equipped with conical sealing edge, and the step of larger diameter from the side of rod is spring-loaded by adjustable spring. The stepped piston is located in two-step axial boring of housing. The boring of smaller diameter is connected to the cavity of accumulator and is isolated from the boring of larger diameter by conical sealing edge. The cavity formed in the greater boring of housing by smaller and larger steps of piston is connected to the cavity of accumulator through the check valve and adjustable choke. The end of the piston rod is contact switch in the circuit of electromagnetic control of the electro-hydraulic distributor.
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