Integrated hydraulic drive system

Abstract

The invention discloses an integrated hydraulic drive system. The integrated hydraulic drive system comprises a main oil tank, a motor pump set, a valve plate assembly, a hydraulic oil cooling device, an electronic control cabinet, a controller and a power switch, wherein the motor pump set comprises a pump and a motor for driving the pump, an oil outlet of the main oil tank is connected to a work oil hole in the valve plate assembly through a first oil pipe, the pump is arranged on the first oil pipe, an oil return hole in the valve plate assembly is connected to an oil return opening in the main oil tank through a second oil pipe, and the hydraulic oil cooling device is arranged on the second oil pipe. The integrated hydraulic drive system further comprises a box body, and the main oil tank, the motor pump set, the valve plate assembly, the hydraulic oil cooling device, the electronic control cabinet, the controller and the power switch are all installed on the box body. The integrated hydraulic drive system is compact in structure, convenient to install and maintain and low in cost, and the oil pipes and wires are arranged simply.

Description

technical field [0001] The invention relates to a hydraulic drive system, in particular to an integrated hydraulic drive system applied to an injection molding machine. Background technique [0002] Injection molding machine is the main molding equipment for making thermoplastics or thermosetting plastics into various shapes of plastic products using plastic molding molds. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it inject and fill the mold cavity. The process of the injection molding machine The production process generally includes several stages such as mold closing, injection, pressure holding, material storage, cooling, mold opening and ejection. At present, injection molding machines generally use hydraulic drive systems as their power sources. The hydraulic drive systems of injection molding machines generally include fuel tanks, pumps, motors, valve plate assemblies, main valves, branch valves, hydraulic...

AI Technical Summary

Problems solved by technology

At present, injection molding machines generally use hydraulic drive systems as their power sources. The hydraulic drive systems of injection molding machines generally include fuel tanks, pumps, motors, valve plate assemblies, main valves, branch valves, hydraulic oil coolers, electric control boxes, controllers, Power switch, etc. These components are installed in different positions of the injection molding machine, making the distribution of various components in the hydraulic drive system more scattered, and these components are connected to each other through many oil pipes and wires, making the injection molding machine more messy. A lot of oil pipes and wires are arranged, and the above-mentioned components need to be installed on the injection molding machine one by one. The operation is more troublesome and the cost is higher. , the hydraulic oil will contain impurities, and the hydraulic oil containing impurities will easily cause the injection molding machine to malfunction, such as valve blockage, etc., but there is no effective device to remove impurities in the hydraulic oil in time

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