A servo ejection device for a brick press

Abstract

The invention discloses a novel servo ejection device for a brick press. The device comprises an ejection plate, a mold clamping cylinder, an ejection cylinder assembly and a hydraulic control assembly and further comprises an ejection main panel, wherein the cylinder body part of the mold clamping cylinder is inset in the center of the ejection main panel, and a piston rod of the mold clamping cylinder is in rigid connection with the ejection plate; the ejection cylinder assembly comprises at least three ejection cylinders, the cylinder body parts of the at least three ejection cylinders are all inset in the ejection main panel, the lines connecting the centers of the at least three ejection cylinders form a regular polygon, and the center of the regular polygon is located on the center axis of the cylinder body part of the mold clamping cylinder; piston rods of the at least three ejection cylinders abut against the ejection plate movably, an oil inlet and outlet duct communicated with the cylinder body of the mold clamping cylinder and the cylinder bodies of the ejection cylinders is arranged in the ejection main panel, and the hydraulic control assembly is connected with the cylinder body of the mold clamping cylinder and the cylinder bodies of the ejection cylinders through the oil inlet and outlet duct. The device is steady in ejection, capable of avoiding impact and high in ejection position and speed control precision.

Description

technical field [0001] The invention belongs to the technical field of hydraulic control of a brick press, and in particular relates to a servo ejector for a brick press. Background technique [0002] Such as figure 1 As shown, an existing servo ejector device for a brick press mainly includes two servo valves 53, two ejector cylinders 2 and an ejector plate 11, and the piston rods of the two ejector cylinders 2 are rigidly connected to the ejector plate 11. , and the two servo valves 53 independently control the two ejection cylinders 2 respectively. Because the two ejector cylinders need to act synchronously when they work, and the synchronization accuracy is high, if the two ejector cylinders are not synchronized, it will cause uneven ejection, and in severe cases, it will lead to unbalanced load of the ejector cylinder and strain of the piston rod, and then The seal will fail and oil will leak, what's more, the piston rod will be stuck and broken. Moreover, the use of...

AI Technical Summary

Problems solved by technology

Due to the high precision requirements for the manufacture and installation of the guide post and guide sleeve, the difficulty is great, the maintenance is inconvenient, and frequent maintenance is required, the maintenance cost is high

Moreover, during the working process, the guide device will cause a large energy loss due to friction and heat; the large guide gap will also cause uneven ejection; Ejection crawling or even stuck phenomenon, high failure rate

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