Hydraulic oil pipe system for plastic bottle cap molding press

Abstract

The invention discloses a hydraulic oil pipe system for plastic bottle cap molding press, comprising a machine bracket and a spindle; the upper end of the spindle is sheathed with a rotary internal connector and a connector sleeve; the rotary internal connector is fixed with the circumference of the spindle; the connector sleeve is connected with the machine bracket; the lower end of the spindle is provided with an oil separating disc; an oil inlet and an oil outlet are arranged on the connector sleeve; a plurality of annular oil grooves are arranged between the connector sleeve and the rotaryinternal connector; the upper and the lower ends of the ring oil grooves are both sealed by sealing rings; a plurality of oil transporting channels which are corresponding to the annular oil groovesone by one and are communicated individually are arranged within the rotary internal connector; the oil transporting channels are in communication with the oil supplying space and the oil reflowing space by independent oil transporting pipelines; the oil supplying space and the oil reflowing space in the oil separating disc are both sealed and separated from each other without communication; and the oil supplying space and the oil reflowing space are connected with the reversing valve of each molding press unit by independent oil pipes. This technical scheme has the characteristics of sufficient oil supply, stable oil pressure, rational structure, convenient maintenance, etc.

Description

technical field [0001] The invention belongs to the field of compression molding equipment, in particular to a hydraulic oil circuit system of a plastic bottle cap molding machine. Background technique [0002] The patent document with publication number CN2521018Y discloses a plastic bottle cap molding machine, which includes an extruder for heating and extruding plastic, a turntable type molding device for compression molding plastic into bottle caps, and feeding the plastic extruded by the extruder into The feeding device of the molding device. The molding device includes a main shaft fixed on the frame for rotation. The mold assembly and the lower mold assembly, the frame is provided with upper and lower cams above and below the large turntable, the ejector pin rollers of each upper mold assembly are in rolling contact with the upper cam, and each lower mold assembly The push rod rollers are in rolling contact with the lower cam, so that the upper and lower molds can be...

AI Technical Summary

Problems solved by technology

The motorized reversing valve has simple structure, reliable action, and high reversing position accuracy, but because it must be installed near the hydraulic cylinder, the connecting pipeline is long, and because each hydraulic cylinder is fixed on the large turntable and rotates together, therefore, A more reasonable and easy-to-maintain hydraulic oil circuit system is needed

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