Vacuum degassing device having rough material overflow-resisting function

Abstract

The vacuum deairing apparatus possessing material overflow preventing function includes one main body, one top cover, photoelectronic sensors, one vacuum pump, one pressure controlling transducer, etc. It has also location regulating guide rails on inside walls, one cut-off valve between the vacuum pump and the main body, one vacuum electromagnetic flapper valve and one air relief valve connected in parallel, one relay, etc to constitute double closed-loop control system. The present invention adopts photoelectronic sensors on the guide rails to detect liquid level and relay module to control the opening and closing of the vacuum electromagnetic flapper valve, so as to prevent material overflow during automatic material deairing process and raise production efficiency. The vacuum deairing apparatus may be applied in vacuum deairing viscous liquid.

Description

technical field [0001] The invention belongs to the technical field of vacuum injection molding, and in particular relates to a vacuum degassing device with the function of preventing raw materials from overflowing. Background technique [0002] Vacuum injection molding machine is a device for quickly copying or trial-producing various plastic products. It is widely used in the development process of new products, which can shorten the development cycle of new products, reduce development costs and reduce development risks. With the continuous expansion of market demand for vacuum injection molding products, a situation of many production orders and tight delivery time has gradually formed. The vacuum injection molding machine commonly used at present combines the degassing of silica gel and the pouring process of plastic parts into one. The problem caused by this is: because the vulcanized silicone rubber (RTV) itself contains gas, it needs to be degassed by a vacuum machin...

AI Technical Summary

Problems solved by technology

At present, the vacuum injection molding machine commonly used combines the degassing of silica gel and the pouring process of plastic parts into one. The problem caused by this is: because the vulcanized silicone rubber (RTV) itself contains gas, it needs to be degassed by a vacuum machine.

However, vulcanized silicone rubber will foam and expand in a vacuum state, so RTV is easy to overflow the container, resulting in waste and even work failure

At the same time, the production efficiency of this process is low, and it is difficult to meet the customer's requirements for delivery time when there are many orders

Images