Modularized combined type all-electric rubber injection machine

Abstract

The invention discloses a modularized combined type all-electric rubber injection machine. The modularized combined type all-electric rubber injection machine comprises metering pump units and injection units. The metering pump units and the injection units are connected by material pipes. The material pipes are provided with stop valves. The metering pump units are all-electric metering pump units. The injection units are all-electric liquid rubber injection units. Servo motors, precision planetary reduction boxes and ball screw assemblies are utilized respectively as power parts and transmission parts of the metering pump units and the injection units. The number of the all-electric metering pump units is at least two and the number of the all-electric liquid rubber injection units is in a range of one to ten. Through utilization of molds, during production, the modularized combined type all-electric rubber injection machine can produce the same or different injection-molded rubber products simultaneously. The modularized combined type all-electric rubber injection machine can be controlled by a microcomputer to carry out automatic work. Compared with the existing rubber injection machine, the modularized combined type all-electric rubber injection machine has the advantages that all components can be mixed according to any ratio based on requirements; high-precision control of a revolving speed and a stroke is realized; material feeding pressure and a material feeding speed can be adjusted; energy consumption is reduced; noise is not produced; production efficiency is improved greatly; and an equipment investment cost and a product production cost are reduced observably in a situation of the same productivity.

Description

technical field [0001] The invention relates to a rubber injection machine in the production of liquid rubber molding, in particular to a rubber injection machine in which an all-electric metering pump unit and an all-electric injection unit are combined. Background technique [0002] In actual use, the liquid rubber injection machine is often composed of a two-component metering pump consisting of two metering pump units and a liquid rubber injection unit. For many years, hydraulically driven rubber injection machines produced by companies such as 2KM in Germany have been used. The participation of the hydraulic system makes this type of rubber injection machine bulky, with many pipelines, easy to leak oil, high energy consumption, low precision, and large deviation of materials. In order to prevent the product from being scrapped due to lack of material during production, it is necessary to increase the margin of the injected material, which not only wastes the material, b...

AI Technical Summary

Problems solved by technology

The participation of the hydraulic system makes this type of rubber injection machine bulky, with many pipelines, easy to leak oil, high energy consumption, low precision, and large deviation of materials

In order to prevent the product from being scrapped due to lack of material during production, it is necessary to increase the margin of the injected material, which not only wastes the material, but also increases the material pressure in the mold. As the material temperature rises, thermal expansion occurs, and the pressure is higher, which is easy to cause the product to crack and die. Scrapped, can only rely on cooling to reduce thermal expansion, but cooling will cause low production efficiency

It can be seen that the low precision of the liquid rubber injection machine will bring a series of problems to the product production

This kind of rubber injection machine driven by hydraulic pressure, consisting of a two-component metering pump, an injection unit and a combination of molds, has high equipment investment costs, poor precision, unstable product quality, and low production efficiency.

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