Quick mould opening/closing control structure and control method of toggle type injection molding machine

A control structure, mold opening and closing technology, applied in the field of rapid mold opening and closing control structure, can solve the problems of increased energy consumption and use cost of the whole machine, deviation of mold opening stop position, large rigid impact, etc., so as to eliminate the large impact of template movement. , Accurate stop position, reduce the effect of rigid impact
CN101758607AInactive Publication Date: 2010-06-30DONGHUA MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DONGHUA MACHINERY
Publication Date
2010-06-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a quick mould opening / closing control structure and a control method of a toggle type injection molding machine comprising an oil supply oil tank, a mould opening / closing hydraulic cylinder, a main oil pipeline, an oil return pipeline, a servo hydraulic driving device, a directional control valve and a proportional flow valve with feedback. By the device, the servo hydraulic driving device is utilized to provide pressure oil required by mould opening / closing, the pressure oil enters a mould opening / closing oil cylinder, then the set value of the mould opening / closing pressure is reasonably increased by utilizing the performance of the servo hydraulic driving device, and the speed tracing pressure of the pressure oil keeps high-speed running with large flow rate inthe mould opening / closing process; the proportional flow valve with the feedback is reasonably regulated at a mould closing stop stage and a mould opening termination stage to control the magnitude of the oil return quantity, oil return resistance is provided to prohibit the movement of a movable template, the rigid impact of the template to a machine in the high-speed running process is reduced,the mould opening / closing running is stable, and the accuracy of a stop position is high; and the quick mould opening / closing control structure and the method realize the advantages of high speed, high accuracy, high efficiency, low energy consumption and the like.
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Description

technical field

[0001] The present invention relates to an application of using a servo hydraulic drive device and related oil circuits to control the mold opening and closing of an injection molding machine, especially a rapid mold opening and closing control structure for high-speed precision mold opening and closing of an injection molding machine using a toggle-type clamping structure. Control Method. Background technique

[0002] The traditional mold opening and closing technology of toggle-type mold clamping structure injection molding machine is that an ordinary motor drives a hydraulic pump (quantitative pump or variable pump) to output pressure and flow, and the direction of the pressure oil is switched through the directional control valve to open and close the mold. During this process, the pressure and flow of the pressure oil are constantly adjusted according to the change of the mold opening and closing parameters, and the excess pressure and flow will usually ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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