SU466132A1 - Hydraulic Press Control System - Google Patents

Description

6 with the stops 4 and 5, movably mounted with respect to the bracket 8. At the end of the working stroke, the stop 4 comes into contact with the two-arm lever 3, and the rod 6 with the stops 4 and 5 stops and the bracket 8 continues to move, mixing with respect to the rod. When the inner surface of one of the slits 14 stops on the washer 9 and the stop 10, the rod 6 starts moving again. The stop 4 turns the double-arm lever 3 counterclockwise around the axis 13, the distribution valve 2 is mixed, neutral, both cavities of the working cylinder 1 and the power source are connected to the drain and the press stops.

When the operator lowers the control handle 11, the return spring 15 rotates the double-arm lever counterclockwise to move the distribution spool 2 from the neutral to the position, connecting the operating chamber of the working cylinder 1 with the power source, and the piston cavity with the drain. The slider associated with the rod 7 begins to make a return stroke. The rod 6 starts the return movement from the moment when the bracket 8 meets the collar 16. When the return stroke ends, the stop 5 comes into contact with the two-arm lever 3 and turns it clockwise, overcoming the resistance of the return spring 16. At the same time, the control spool 2 is set to neutral, both cavities of the working cylinder I and the pump are connected to the drain, and the press stops. The press cycle ends there. If it is necessary to shift the end of the working stroke during the next cycle, turn the washer 9 with the handle 17 to a new fixed position, ensuring the contact of the stop 10 with the inner surface of the other slot 14. In this case, the amount of displacement of the stroke is equal to the difference of the depths of the slots 14.

Subject invention

A hydraulic press control system comprising a working cylinder connected to a power source by a pipeline through a distribution valve mounted on it connected to a two-arm lever interacting with another arm with stops positioned at a predetermined distance one relative to another on a rod fixed to the rod of the working cylinder by the bracket and also the mechanism for adjusting the stroke of the slide associated with the rod is different because in order to simplify the design, the rod is installed relative to the bracket, it is movable, and the mechanism for adjusting the stroke of the slide is made in the form of a rotary lock located radially in the bracket with radial slots of various depths and an additional stop attached to the end of the rod, which comes when the rod is moved into the slot of a given depth.

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