Lubricating device for draw-bar guide sleeves of moving mold plate of injection molding machine and system thereof

Abstract

The invention provides a lubricating device for draw-bar guide sleeves of a moving mold plate of an injection molding machine and a system thereof and relates to the technical field of lubrication of the moving mold plate of the injection molding machine. The device comprises the movable mold plate and the guide sleeves; draw bar through holes are formed in the movable mold plate, and the guide sleeves sleeve the inner sides of two ends of each of the draw bar through holes; oil inlet through holes are formed in the upper side walls, close to ports on two sides, of each of the draw bar through holes, an oil through hole is formed in the side wall of each of the guide sleeves, and the oil inlet through holes communicate with the oil through holes; oil outlet through holes are formed along the lower side walls of the axial middle part of each of the draw bar through holes; and switches are mounted on the outer sides of the oil outlet through holes. The lubricating device provided by the invention solves the technical problem that the adding amount of grease cannot be examined and impurities in the movable mold plate cannot be immediately discharged when lubricating grease is added into a conventional movable mold plate. By adopting the device and the system thereof, whether the filling amount is full or not when the lubricating grease is filled can be detected. Waste oil in a lubricating chamber can be discharged by controlling the switches before the lubricating grease is filled or the lubricating grease is being filled.

Description

technical field [0001] The invention relates to the technical field of lubrication of injection molding motorized templates, in particular to a lubricating device and a system for injection molding motorized template tie rod guide sleeves. Background technique [0002] The sliding guide sleeve is used as the guide between the inner moving platen and the tie rod of the injection molding machine, and the outside is lubricated by lubricating grease through the lubricating grease nipple or the lubricating pipeline. The guide part of each tie rod on the movable formwork adopts two guide sleeves, and a dust-proof ring is arranged outside the guide sleeve to prevent dust. The main function is to prevent impurities on the surface of the tie rod from entering the guide sleeve. An oil seal will also be provided to prevent lubricating grease from extruding from the end face of the guide sleeve. [0003] Since the oil film will be attached to the surface of the tie rod during each move...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, because the demand for lubricating grease in the cavity of the movable template cannot be accurately estimated within a certain period, and it is impossible to visually detect whether it has been filled up, sometimes too much lubricating grease is injected, resulting in excessive internal pressure and the lubricating grease Squeeze out from the dust-proof rings at both ends, on the one hand, it will pollute the mold clamping area, and on the other hand, it will also cause waste of lubricating grease

At the same time, during the operation of the template, the guide copper sleeve will also rub against the pull rod, and impurities such as copper powder will enter the lubricating grease on the inner wall of the guide copper sleeve. Reduced lubricity

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